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These resources address the diagnosis or management of adiposis dolorosa: - Genetic Testing Registry: Lipomatosis dolorosa - Merck Manual Consumer Version: Lipomas These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Diagnostic Tests - Drug Therapy - Surgery and Rehabilitation - Genetic Counseling - Palliative Care
What causes Coffin-Siris syndrome? Coffin-Siris syndrome is caused by a change (mutation) in either the ARID1A, ARID1B, SMARCA4, SMARCB1, or SMARCE1 gene. Exactly how these gene mutations result in the symptoms of Coffin-Siris syndrome is not known, however it is thought that the mutations affect how genetic material is packaged in the cell. Coffin-Siris syndrome is an autosomal dominant condition; as only one gene mutation is needed to cause the syndrome. It usually occurs for the first time in a family due to a new mutation. In some cases, no genetic mutation can be identified and the cause of Coffin-Siris syndrome in the family remains unknown.
Fumarase deficiency is a condition that primarily affects the nervous system, especially the brain. Affected infants may have an abnormally small head size (microcephaly), abnormal brain structure, severe developmental delay, weak muscle tone (hypotonia), and failure to gain weight and grow at the expected rate (failure to thrive). They may also experience seizures. Some people with this disorder have unusual facial features, including a prominent forehead (frontal bossing), low-set ears, a small jaw (micrognathia), widely spaced eyes (ocular hypertelorism), and a depressed nasal bridge. An enlarged liver and spleen (hepatosplenomegaly) may also be associated with this disorder, as well as an excess of red blood cells (polycythemia) or deficiency of white blood cells (leukopenia) in infancy. Affected individuals usually survive only a few months, but a few have lived into early adulthood.
Families may benefit from meeting with a dietitian to learn how dietary management can help in preventing stones. Depending on the underlying cause of the stone formation, medications may be necessary to prevent recurrent stones. Dietary changes and medications may be required for a long term or, quite often, for life. Some common changes include the following: - Children who tend to make calcium oxalate stones or have hypercalciuria should eat a regular amount of dietary calcium and limit salt intake. A thiazide diuretic medication may be given to some children to reduce the amount of calcium leaking into the urine. - Children who have large amounts of oxalate in the urine may need to limit foods high in oxalate, such as chocolate, peanut butter, and dark-colored soft drinks. - Children who form uric acid or cystine stones may need extra potassium citrate or potassium carbonate in the form of a pill or liquid medication. Avoiding foods high in purinessuch as meat, fish, and shellfishmay also help prevent uric acid stones.
CADASIL (Cerebral Autosomal Dominant Arteriopathy with Sub-cortical Infarcts and Leukoencephalopathy) is an inherited form of cerebrovascular disease that occurs when the thickening of blood vessel walls blocks the flow of blood to the brain. The disease primarily affects small blood vessels in the white matter of the brain. A mutation in the Notch3 gene alters the muscular walls in these small arteries. CADASIL is characterized by migraine headaches and multiple strokes progressing to dementia. Other symptoms include cognitive deterioration, seizures, vision problems, and psychiatric problems such as severe depression and changes in behavior and personality. Individuals may also be at higher risk of heart attack. Symptoms and disease onset vary widely, with signs typically appearing in the mid-30s. Some individuals may not show signs of the disease until later in life. CADASIL formerly known by several names, including hereditary multi-infarct dementia is one cause of vascular cognitive impairment (dementia caused by lack of blood to several areas of the brain). It is an autosomal dominant inheritance disorder, meaning that one parent carries and passes on the defective gene. Most individuals with CADASIL have a family history of the disorder. However, because the genetic test for CADASIL was not available before 2000, many cases were misdiagnosed as multiple sclerosis, Alzheimer's disease, or other neurodegenerative diseases.
How is autosomal dominant nocturnal frontal lobe epilepsy diagnosed? The diagnosis of autosomal dominant nocturnal frontal lobe epilepsy (ADNFLE) is made on clinical grounds. The key to diagnosis is a detailed history from the affected person, as well as witnesses. Sometimes video-EEG monitoring is necessary. The features that are suggestive of a diagnosis of ADNFLE are: clusters of seizures with a frontal semiology seizures that occur predominantly during sleep normal clinical neurologic exam normal intellect (although reduced intellect, cognitive deficits, or psychiatric disorders may occur) normal findings on neuroimaging ictal EEG (recorded during a seizure) that may be normal or obscured by movement of the cables or electrodes interictal EEG (recorded in between seizures) that shows infrequent epileptiform discharges (distinctive patterns resembling those that occur in people with epilepsy) the presence of the same disorder in other family members, with evidence of autosomal dominant inheritance The diagnosis can be established in a person with the above features, combined with a positive family history and/or genetic testing that detects a mutation in one of the genes known to cause ADNFLE. People who are concerned they may be having seizures or other neurological signs or symptoms should be evaluated by a neurologist.
Hypochromic microcytic anemia with iron overload is a condition that impairs the normal transport of iron in cells. Iron is an essential component of hemoglobin, which is the substance that red blood cells use to carry oxygen to cells and tissues throughout the body. In this condition, red blood cells cannot access iron in the blood, so there is a decrease of red blood cell production (anemia) that is apparent at birth. The red blood cells that are produced are abnormally small (microcytic) and pale (hypochromic). Hypochromic microcytic anemia with iron overload can lead to pale skin (pallor), tiredness (fatigue), and slow growth. In hypochromic microcytic anemia with iron overload, the iron that is not used by red blood cells accumulates in the liver, which can impair its function over time. The liver problems typically become apparent in adolescence or early adulthood.
What are the signs and symptoms of X-linked congenital stationary night blindness? The Human Phenotype Ontology provides the following list of signs and symptoms for X-linked congenital stationary night blindness. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Congenital stationary night blindness - Hemeralopia - Severe Myopia - X-linked recessive inheritance - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common.
How is abetalipoproteinemia inherited? Abetalipoproteinemia is inherited in an autosomal recessive manner. This means that to be affected, a person must have a mutation in both copies of the responsible gene in each cell. Affected people inherit one mutated copy of the gene from each parent, who is referred to as a carrier. Carriers of an autosomal recessive condition typically do not have any signs or symptoms (they are unaffected). When 2 carriers of an autosomal recessive condition have children, each child has a: 25% (1 in 4) chance to be affected 50% (1 in 2) chance to be an unaffected carrier like each parent 25% chance to be unaffected and not be a carrier
Lactose * intestine lactase , enzyme *See the Pronunciation Guide for tips on how to say the words in bold type.
Varicose veins are swollen, twisted veins that you can see just under the skin. They usually occur in the legs, but also can form in other parts of the body. Hemorrhoids are a type of varicose vein. Your veins have one-way valves that help keep blood flowing toward your heart. If the valves are weak or damaged, blood can back up and pool in your veins. This causes the veins to swell, which can lead to varicose veins. Varicose veins are very common. You are more at risk if you are older, a female, obese, don't exercise or have a family history. They can also be more common in pregnancy. Doctors often diagnose varicose veins from a physical exam. Sometimes you may need additional tests. Exercising, losing weight, elevating your legs when resting, and not crossing them when sitting can help keep varicose veins from getting worse. Wearing loose clothing and avoiding long periods of standing can also help. If varicose veins are painful or you don't like the way they look, your doctor may recommend procedures to remove them. NIH: National Heart, Lung, and Blood Institute
Optic neuritis is inflammation of the optic nerve, the nerve that carries the visual signal from the eye to the brain. The condition may cause sudden, reduced vision in the affected eye(s). While the cause of optic neuritis is unknown, it has been associated with autoimmune diseases, infections, multiple sclerosis, drug toxicity and deficiency of vitamin B-12. Vision often returns to normal within 2-3 weeks without treatment. In some cases, corticosteroids are given to speed recovery. If known, the underlying cause should be treated.
Methylcobalamin deficiency cbl G type is a rare condition that occurs when the body is unable to process certain amino acids (building blocks of protein) properly. In most cases, signs and symptoms develop during the first year of life; however, the age of onset can range from infancy to adulthood. Common features of the condition include feeding difficulties, lethargy, seizures, poor muscle tone (hypotonia), developmental delay, microcephaly (unusually small head size), and megaloblastic anemia. Methylcobalamin deficiency cbl G type is caused by changes (mutations) in the MTR gene and is inherited in an autosomal recessive manner. Treatment generally includes regular doses of hydroxycobalamin (vitamin B12). Some affected people may also require supplementation with folates and betaine.
How is protein C deficiency diagnosed? A diagnosis of protein C deficiency might be suspected in someone with a deep venous thrombosis (DVT) or a pulmonary embolism, especially if it occurs in a relatively young person (less than 50 years old) or has formed in an unusual location, such as the veins leading to the liver or kidney or the blood vessels of the brain. Laboratory tests are usually be done to look at the function or quantity of protein C in the blood. Functional tests are usually ordered, along with other tests for abnormal blood clotting, to screen for normal activity of protein C. Based on those results, concentrations of protein C may be measured to look for decreased production due to an acquired or inherited condition and to classify the type of deficiency. If the shortage of protein C is due to an inherited genetic change, the quantity of protein C available and the degree of activity can be used to help determine whether a person is heterozygous or homozygous for the mutation. Genetic testing is not necessary to make a diagnosis.
Molybdenum cofactor deficiency has an autosomal recessive pattern of inheritance, which means both copies of the gene in each cell have mutations. An affected individual usually inherits one altered copy of the gene from each parent. Parents of an individual with an autosomal recessive condition typically do not show signs and symptoms of the condition. At least one individual with molybdenum cofactor deficiency inherited two mutated copies of the MOCS1 gene through a mechanism called uniparental isodisomy. In this case, an error occurred during the formation of egg or sperm cells, and the child received two copies of the mutated gene from one parent instead of one copy from each parent.
These resources address the diagnosis or management of desmoid tumor: - Dana-Farber Cancer Institute - Desmoid Tumor Research Foundation: About Desmoid Tumors - Genetic Testing Registry: Desmoid disease, hereditary These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Diagnostic Tests - Drug Therapy - Surgery and Rehabilitation - Genetic Counseling - Palliative Care
Childhood nephrotic syndrome is not a disease in itself; rather, it is a group of symptoms that - indicate kidney damageparticularly damage to the glomeruli, the tiny units within the kidney where blood is filtered - result in the release of too much protein from the body into the urine When the kidneys are damaged, the protein albumin, normally found in the blood, will leak into the urine. Proteins are large, complex molecules that perform a number of important functions in the body. The two types of childhood nephrotic syndrome are - primarythe most common type of childhood nephrotic syndrome, which begins in the kidneys and affects only the kidneys - secondarythe syndrome is caused by other diseases A health care provider may refer a child with nephrotic syndrome to a nephrologista doctor who specializes in treating kidney disease. A child should see a pediatric nephrologist, who has special training to take care of kidney problems in children, if possible. However, in many parts of the country, pediatric nephrologists are in short supply, so the child may need to travel. If traveling is not possible, some nephrologists who treat adults can also treat children.
Schindler disease is an inherited condition that primarily causes neurological problems. There are three types of Schindler disease. Schindler disease type 1, also called the infantile type, is the most severe form. Babies with this condition appear healthy a birth, but by the age of 8 to 15 months they stop developing new skills and begin losing skills they had already acquired. As the condition progresses, affected individuals develop blindness and seizures, and eventually lose awareness of their surroundings and become unresponsive. People with this form of the condition usually don't survive past early childhood. Schindler disease type 1 is caused by mutations in the NAGA gene. The condition follows an autosomal recessive pattern of inheritance.
Research supported by the NINDS includes studies to understand how the brain and nervous system normally develop. These studies contribute to a greater understanding of neural tube disorders, such as anencephaly, and open promising new avenues to treat and prevent neurological birth defects.
Sturge-Weber syndrome is a neurological disorder indicated at birth by a port-wine stain birthmark on the forehead and upper eyelid of one side of the face. The birthmark can vary in color from light pink to deep purple and is caused by an overabundance of capillaries around the trigeminal nerve just beneath the surface of the face. Sturge-Weber syndrome is also accompanied by abnormal blood vessels on the brain surface and the loss of nerve cells and calcification of underlying tissue in the cerebral cortex of the brain on the same side of the brain as the birthmark. Neurological symptoms include seizures that begin in infancy and may worsen with age. Convulsions usually happen on the side of the body opposite the birthmark and vary in severity. There may be intermittent or permanent muscle weakness on the same side. Some children will have developmental delays and cognitive impairment; most will have glaucoma (increased pressure within the eye) at birth or developing later. The increased pressure within the eye can cause the eyeball to enlarge and bulge out of its socket (buphthalmos). There is an increased risk for migraine headaches. Sturge-Weber syndrome rarely affects other body organs.
Rett syndrome is a childhood neurodevelopmental disorder that affects females almost exclusively. The child generally appears to grow and develop normally, before symptoms begin. Loss of muscle tone is usually the first symptom. Other early symptoms may include a slowing of development, problems crawling or walking, and diminished eye contact. As the syndrome progresses, a child will lose purposeful use of her hands and the ability to speak. Compulsive hand movements such as wringing and washing follow the loss of functional use of the hands. The inability to perform motor functions is perhaps the most severely disabling feature of Rett syndrome, interfering with every body movement, including eye gaze and speech.
Certain factors affect prognosis (chance of recovery) and treatment options. The prognosis (chance of recovery) and treatment options depend on: - The type of tumor and where it is in the brain. - Whether the cancer has spread within the brain and spinal cord when the tumor is found. - The age of the child when the tumor is found. - How much of the tumor remains after surgery. - Whether there are certain changes in the chromosomes, genes, or brain cells. - Whether the tumor has just been diagnosed or has recurred (come back).
Amish lethal microcephaly is a disorder in which infants are born with a very small head and underdeveloped brain. Infants with Amish lethal microcephaly have a sloping forehead and an extremely small head size. They may also have an unusually small lower jaw and chin (micrognathia) and an enlarged liver (hepatomegaly). Affected infants may have seizures and difficulty maintaining their body temperature. Often they become very irritable starting in the second or third month of life. A compound called alpha-ketoglutaric acid can be detected in their urine (alpha-ketoglutaric aciduria), and during episodes of viral illness they tend to develop elevated levels of acid in the blood and tissues (metabolic acidosis). Infants with this disorder typically feed adequately but do not develop skills such as purposeful movement or the ability to track faces and sounds. Affected infants live only about six months.
7q11.23 duplication syndrome results from an extra copy of a region on the long (q) arm of chromosome 7 in each cell. This region is called the Williams-Beuren syndrome critical region (WBSCR) because its deletion causes a different disorder called Williams syndrome, also known as Williams-Beuren syndrome. The region, which is 1.5 to 1.8 million DNA base pairs (Mb) in length, includes 26 to 28 genes. Extra copies of several of the genes in the duplicated region, including the ELN and GTF2I genes, likely contribute to the characteristic features of 7q11.23 duplication syndrome. Researchers suggest that an extra copy of the ELN gene in each cell may be related to the increased risk for aortic dilatation in 7q11.23 duplication syndrome. Studies suggest that an extra copy of the GTF2I gene may be associated with some of the behavioral features of the disorder. However, the specific causes of these features are unclear. Researchers are studying additional genes in the duplicated region, but none have been definitely linked to any of the specific signs or symptoms of 7q11.23 duplication syndrome.
What are the signs and symptoms of Alopecia totalis? The Human Phenotype Ontology provides the following list of signs and symptoms for Alopecia totalis. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Alopecia areata - Alopecia totalis - Autoimmunity - Multifactorial inheritance - Nail pits - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common.
This condition is inherited in an X-linked recessive pattern. The gene associated with this condition is located on the X chromosome, which is one of the two sex chromosomes. In males (who have only one X chromosome), one altered copy of the gene in each cell is sufficient to cause the condition. In females (who have two X chromosomes), a mutation would have to occur in both copies of the gene to cause the disorder. Because it is unlikely that females will have two altered copies of this gene, males are affected by X-linked recessive disorders much more frequently than females. A characteristic of X-linked inheritance is that fathers cannot pass X-linked traits to their sons. About half of affected individuals do not have a family history of XLA. In most of these cases, the affected person's mother is a carrier of one altered BTK gene. Carriers do not have the immune system abnormalities associated with XLA, but they can pass the altered gene to their children. In other cases, the mother is not a carrier and the affected individual has a new mutation in the BTK gene.
Anemia of inflammation and chronic disease often is not treated separately from the condition with which it occurs. In general, health care providers focus on treating the underlying illness. If this treatment is successful, the anemia usually resolves. For example, antibiotics prescribed for infection and anti-inflammatory medications prescribed for rheumatoid arthritis or IBD can cause AI/ACD to disappear. However, AI/ACD is increasingly being viewed as a medical condition that merits direct treatment. For people with cancer or kidney disease who have low levels of EPO, a synthetic form of EPO may be prescribed. A health care provider usually injects EPO subcutaneouslyunder the skintwo or three times a week. A person may be taught how to inject the EPO at home. People on hemodialysis who cannot tolerate EPO shots may receive EPO intravenously during hemodialysis. If iron deficiency has a role in causing AI/ACD, a person may need iron supplements to raise hematocrit to a target level. Iron supplements can be taken by pill, subcutaneously, or intravenously during hemodialysis. People with kidney disease and AI/ACD may also be advised to take vitamin B12 and folic acid supplements. A person should talk with a health care provider before taking any supplements. More information is provided in the NIDDK health topic, Anemia in Kidney Disease and Dialysis.
How might neutral lipid storage disease with myopathy be treated? To date, there is no treatment for the underlying metabolic problem. Current therapies include adhering to strict dietary guidelines and utilizing treatments focused on the associated symptoms. A recent study suggests that people with this condition may benefit from bezafibrate (a medication used to treat high cholesterol) treatment, particularly with respect to lipid accumulation and fat oxidative capacity. Additional studies into this therapy are needed.
This condition is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder. In about 50 percent of cases, an affected person inherits the mutation from one affected parent. Other cases result from new mutations in the gene and occur in people with no history of the disorder in their family.
These resources address the diagnosis or management of Coffin-Siris syndrome: - Gene Review: Gene Review: Coffin-Siris Syndrome - Genetic Testing Registry: Coffin-Siris syndrome These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Diagnostic Tests - Drug Therapy - Surgery and Rehabilitation - Genetic Counseling - Palliative Care
This condition is inherited in an autosomal recessive pattern, which means both copies of the gene in each cell have mutations. The parents of an individual with an autosomal recessive condition each carry one copy of the mutated gene, but they typically do not show signs and symptoms of the condition.
This condition is inherited in an autosomal recessive pattern, which means both copies of the gene in each cell have mutations. The parents of an individual with an autosomal recessive condition each carry one copy of the mutated gene, but they typically do not show signs and symptoms of the condition.
Summary : Folic acid is a B vitamin. It helps the body make healthy new cells. Everyone needs folic acid. For women who may get pregnant, it is really important. Getting enough folic acid before and during pregnancy can prevent major birth defects of her baby's brain or spine. Foods with folic acid in them include - Leafy green vegetables - Fruits - Dried beans, peas, and nuts - Enriched breads, cereals and other grain products If you don't get enough folic acid from the foods you eat, you can also take it as a dietary supplement. NIH: National Institutes of Health Office of Dietary Supplements
Ollier disease is estimated to occur in 1 in 100,000 people.
Ataxia-telangiectasia occurs in 1 in 40,000 to 100,000 people worldwide.
Wagner syndrome is a hereditary disorder that causes progressive vision loss. The eye problems that lead to vision loss typically begin in childhood, although the vision impairment might not be immediately apparent. In people with Wagner syndrome, the light-sensitive tissue that lines the back of the eye (the retina) becomes thin and may separate from the back of the eye (retinal detachment). The blood vessels within the retina (known as the choroid) may also be abnormal. The retina and the choroid progressively break down (degenerate). Some people with Wagner syndrome have blurred vision because of ectopic fovea, an abnormality in which the part of the retina responsible for sharp central vision is out of place. Additionally, the thick, clear gel that fills the eyeball (the vitreous) becomes watery and thin. People with Wagner syndrome develop a clouding of the lens of the eye (cataract). Affected individuals may also experience nearsightedness (myopia), progressive night blindness, or a narrowing of their field of vision. Vision impairment in people with Wagner syndrome can vary from near normal vision to complete loss of vision in both eyes.
The kidneys are two bean-shaped organs, each about the size of a fist. They are located just below the rib cage, one on each side of the spine. Every day, the two kidneys filter about 120 to 150 quarts of blood to produce about 1 to 2 quarts of urine, composed of wastes and extra fluid. The urine flows from the kidneys to the bladder through two thin tubes of muscle called ureters, one on each side of the bladder. The bladder stores urine. The muscles of the bladder wall remain relaxed while the bladder fills with urine. As the bladder fills to capacity, signals sent to the brain tell a person to find a toilet soon. When the bladder empties, urine flows out of the body through a tube called the urethra, located at the bottom of the bladder. In men the urethra is long, while in women it is short.
Tetra-amelia syndrome has been reported in only a few families worldwide.
Of patients who undergo abdominal surgery, 93 percent develop abdominal adhesions.1 Surgery in the lower abdomen and pelvis, including bowel and gynecological operations, carries an even greater chance of abdominal adhesions. Abdominal adhesions can become larger and tighter as time passes, sometimes causing problems years after surgery.
An ovarian sex cord tumor with annular tubules (SCTAT) is a tumor that grows from cells in the ovaries known as sex cord cells. As these cells grow, they form tube-like shapes in the tumor. SCTATs can develop in one or both ovaries, and may cause symptoms such as puberty at an exceptionally young age (precocious puberty), irregular menstrual cycles, or post-menopausal bleeding. Most ovarian SCTATs are benign. However, because there is a chance that an SCTAT may be malignant, treatment may include surgery to remove the tumor.
The National Institute of Neurological Disorders and Stroke (NINDS) conducts research in its laboratories at the National Institutes of Health (NIH) and also supports additional research through grants to major medical institutions across the country. As part of the Childrens Health Act of 2000, the NINDS and three sister institutes have formed the NIH Autism Coordinating Committee to expand, intensify, and coordinate NIHs autism research. As part of the Childrens Health Act of 2000, the NINDS and three sister institutes have formed the NIH Autism Coordinating Committee to expand, intensify, and coordinate NIHs autism research. Eight dedicated research centers across the country have been established as Centers of Excellence in Autism Research to bring together researchers and the resources they need. The Centers are conducting basic and clinical research, including investigations into causes, diagnosis, early detection, prevention, and treatment of autism.
Summary : A kidney transplant is an operation that places a healthy kidney in your body. The transplanted kidney takes over the work of the two kidneys that failed, so you no longer need dialysis. During a transplant, the surgeon places the new kidney in your lower abdomen and connects the artery and vein of the new kidney to your artery and vein. Often, the new kidney will start making urine as soon as your blood starts flowing through it. But sometimes it takes a few weeks to start working. Many transplanted kidneys come from donors who have died. Some come from a living family member. The wait for a new kidney can be long. If you have a transplant, you must take drugs for the rest of your life, to keep your body from rejecting the new kidney. NIH: National Institute of Diabetes and Digestive and Kidney Diseases
How might tumor necrosis factor receptor-associated periodic syndrome (TRAPS) be treated? While there is no proven treatment for TRAPS, non steroidal anti-inflammatory drugs (NSAIDS) may be used to relieve symptoms of fever, and corticosteroids may be used to reduce severity of symptoms in most people. However, these medications typically don't decrease the frequency of attacks. Etanercept, a TNF inhibitor, has been shown to be effective but its efficacy tends to wane over time. Standard doses of etanercept twice a week have been shown to decrease the frequency, duration, and severity of attacks in some people and it may also reverse or slow the progression of amyloidosis. More studies are needed to evaluate this medication for TRAPS. Additional information about the treatment of TRAPS can be viewed on Medscape's Web site.
18q deletion syndrome is caused by a deletion of genetic material from the long (q) arm of chromosome 18. This chromosomal change is written as 18q-. The size of the deletion and its location on the chromosome vary among affected individuals. The signs and symptoms of 18q deletion syndrome, including the leukodystrophy that likely contributes to the neurological problems, are probably related to the loss of multiple genes on the long arm of chromosome 18. 18q deletion syndrome is often categorized into two types: individuals with deletions near the end of the long arm of chromosome 18 are said to have distal 18q deletion syndrome, and those with deletions in the part of the long arm near the center of chromosome 18 are said to have proximal 18q deletion syndrome. The signs and symptoms of these two types of the condition are overlapping, with certain features being more common in one form of the disorder than in the other. For example, hearing loss and heart abnormalities are more common in people with distal 18q deletion syndrome, while seizures occur more often in people with proximal 18q deletion syndrome. Researchers are working to determine how the loss of specific genes in these regions contributes to the various features of 18q deletion syndrome.
What causes Trisomy 18? In most cases, trisomy 18 is caused by having 3 copies of chromosome 18 in each cell in the body, instead of the usual 2 copies. The extra genetic material from the 3rd copy of the chromosome disrupts development, causing the characteristic signs and symptoms of the condition. About 5% of people with trisomy 18 have 'mosaic trisomy 18' (when there is an extra copy of the chromosome in only some of the body's cells). The severity of mosaic trisomy 18 depends on the number and locations of cells with the extra copy. Very rarely, an extra piece of chromosome 18 is attached to another chromosome; this is called translocation trisomy 18, or partial trisomy 18. If only part of the long (q) arm of chromosome 18 is present in 3 copies, the features may be less severe than in people with full trisomy 18.
Isodicentric chromosome 15 syndrome is a chromosome abnormality that affects many different parts of the body. As the name suggests, people with this condition have an extra chromosome (called an isodicentric chromosome 15) which is made of two pieces of chromosome 15 that are stuck together end-to-end. Although the severity of the condition and the associated features vary from person to person, common signs and symptoms include poor muscle tone in newborns; developmental delay; mild to severe intellectual disability; delayed or absent speech; behavioral abnormalities; and seizures. Most cases of isodicentric chromosome 15 syndrome occur sporadically in people with no family history of the condition. Treatment is based on the signs and symptoms present in each person.
Much of the on-going research on RMDs is aimed at prevention and rehabilitation. The National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS) funds research on RMDs.
What causes factor V deficiency? Factor V deficiency is caused by mutations in the F5 gene that prevent the production of a functional factor V protein or decrease the amount of the protein in the bloodstream. Mutations are present in both copies of the F5 gene in each cell, which prevents blood from clotting normally.
What causes Pelizaeus-Merzbacher disease? Pelizaeus-Merzbacher disease is caused by mutations in the PLP1 gene. This gene provides instructions for producing proteolipid protein 1 and a modified version (isoform) of proteolipid protein 1, called DM20. Proteolipid protein 1 and DM20 are primarily located in the central nervous system and are the main proteins found in myelin, the fatty covering that insulates nerve fibers. A lack of proteolipid protein 1 and DM20 can cause dysmyelination, which can impair nervous system function, resulting in the signs and symptoms of Pelizaeus-Merzbacher disease. It is estimated that 5 percent to 20 percent of people with Pelizaeus-Merzbacher disease do not have identified mutations in the PLP1 gene. In these cases, the cause of the condition is unknown.
Signs and symptoms of pulmonary hypertension (PH) may include: Shortness of breath during routine activity, such as climbing two flights of stairs Tiredness Chest pain A racing heartbeat Pain on the upper right side of the abdomen Decreased appetite As PH worsens, you may find it hard to do any physical activities. At this point, other signs and symptoms may include: Feeling light-headed, especially during physical activity Fainting at times Swelling in your legs and ankles A bluish color on your lips and skin
Mutations in the DDC gene cause AADC deficiency. The DDC gene provides instructions for making the AADC enzyme, which is important in the nervous system. This enzyme helps produce dopamine and serotonin from other molecules. Dopamine and serotonin are neurotransmitters, which are chemical messengers that transmit signals between nerve cells, both in the brain and spinal cord (central nervous system) and in other parts of the body (peripheral nervous system). Mutations in the DDC gene result in reduced activity of the AADC enzyme. Without enough of this enzyme, nerve cells produce less dopamine and serotonin. Dopamine and serotonin are necessary for normal nervous system function, and changes in the levels of these neurotransmitters contribute to the developmental delay, intellectual disability, abnormal movements, and autonomic dysfunction seen in people with AADC deficiency.
Different factors increase or decrease the risk of breast cancer. Anything that increases your chance of getting a disease is called a risk factor. Anything that decreases your chance of getting a disease is called a protective factor. For information about risk factors and protective factors for breast cancer, see the PDQ summary on Breast Cancer Prevention.
The mission of the National Institute of Neurological Disorders and Stroke (NINDS) is to seek fundamental knowledge of the brain and nervous system and to use that knowledge to reduce the burden of neurological disease. The NINDS conducts and supports an extensive research program of basic science to increase understanding of how the nervous system works and circumstances that lead to nerve damage. Knowledge gained from this research may help scientists find the definitive cause of Bell's palsy, leading to the discovery of new effective treatments for the disorder. Other NINDS-supported research is aimed at developing methods to repair damaged nerves and restore full use and strength to injured areas, and finding ways to prevent nerve damage and injuries from occurring.
Mastocytic enterocolitis is a term describing the condition of chronic, intractable diarrhea in people with normal colon or duodenum biopsy results, but with an increased number of mast cells in the colonic mucosa (the innermost layer of the colon). The increase in mast cells is not associated with systemic or cutaneous mastocytosis. It is unclear whether the accumulation of mast cells is a response to, or cause of, the mucosal inflammation that causes the symptoms of the condition. Most individuals with this condition respond well to drugs affecting mast cell function.
What causes hereditary fructose intolerance (HFI)? HFI is caused by alterations (mutations) in the ALDOB gene. This gene provides instructions for making an enzyme called aldolase B. This enzyme is primarily found in the liver and is involved in the breakdown of fructose into energy. Mutations in the ALDOB gene reduce the function of the enzyme, impairing its ability to metabolize fructose. This causes a toxic buildup of fructose-1-phosphate in liver cells, which results in the death of liver cells over time.
These resources address the diagnosis or management of microphthalmia: - Gene Review: Gene Review: Microphthalmia/Anophthalmia/Coloboma Spectrum - Genetic Testing Registry: Cataract, congenital, with microphthalmia - Genetic Testing Registry: Cataract, microphthalmia and nystagmus - Genetic Testing Registry: Microphthalmia, isolated 1 - Genetic Testing Registry: Microphthalmia, isolated 2 - Genetic Testing Registry: Microphthalmia, isolated 3 - Genetic Testing Registry: Microphthalmia, isolated 4 - Genetic Testing Registry: Microphthalmia, isolated 5 - Genetic Testing Registry: Microphthalmia, isolated 6 - Genetic Testing Registry: Microphthalmia, isolated 7 - Genetic Testing Registry: Microphthalmia, isolated 8 - Genetic Testing Registry: Microphthalmia, isolated, with coloboma 1 - Genetic Testing Registry: Microphthalmia, isolated, with coloboma 2 - Genetic Testing Registry: Microphthalmia, isolated, with coloboma 3 - Genetic Testing Registry: Microphthalmia, isolated, with coloboma 4 - Genetic Testing Registry: Microphthalmia, isolated, with coloboma 5 - Genetic Testing Registry: Microphthalmia, isolated, with coloboma 6 - Genetic Testing Registry: Microphthalmia, isolated, with corectopia - Genetic Testing Registry: Microphthalmos These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Diagnostic Tests - Drug Therapy - Surgery and Rehabilitation - Genetic Counseling - Palliative Care
Iridocorneal endothelial (ICE) syndrome describes a group of eye diseases that are characterized by three main features: Visible changes in the iris (the colored part of the eye that regulates the amount of light entering the eye) Swelling of the cornea, and The development of glaucoma (a disease that can cause severe vision loss when normal fluid inside the eye cannot drain properly) ICE syndrome, is more common in women than men, most commonly diagnosed in middle age, and is usually present in only one eye. The condition is actually a grouping of three closely linked conditions: Cogan-Reese syndrome; Chandler's syndrome; and essential (progressive) iris atrophy. The cause of ICE syndrome is unknown, however there is a theory that it is triggered by a virus that leads to swelling of the cornea. While there is no way to stop the progression of the condition, treatment of the symptoms may include medication for glaucoma and corneal transplant for corneal swelling.
How might hereditary sensory neuropathy type 1 be treated? Management of hereditary sensory neuropathy type 1 generally follows the guidelines for diabetic foot care, including careful cleansing and protection of wounds and surgical care when needed. Pain medications may be used by those who experience shooting pains.
Health care providers may prescribe certain medications to prevent UTIs and kidney stones: - A person with medullary sponge kidney may need to continue taking a low-dose antibiotic to prevent recurrent infections. - Medications that reduce calcium in the urine may help prevent calcium kidney stones. These medications may include - potassium citrate - thiazide
These resources address the diagnosis or management of SAVI: - Beth Israel Deaconess Medical Center: Autoinflammatory Disease Center - Eurofever Project - Genetic Testing Registry: Sting-associated vasculopathy, infantile-onset - University College London: Vasculitis and Autoinflammation Research Group These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Diagnostic Tests - Drug Therapy - Surgery and Rehabilitation - Genetic Counseling - Palliative Care
HD is diagnosed based on symptoms and test results. A doctor will perform a physical exam and ask questions about your childs bowel movements. HD is much less likely if parents can identify a time when their childs bowel habits were normal. If HD is suspected, the doctor will do one or more tests. X rays An x ray is a black-and-white picture of the inside of the body. To make the large intestine show up better, the doctor may fill it with barium liquid. Barium liquid is inserted into the large intestine through the anus. If HD is the problem, the last segment of the large intestine will look narrower than normal. Just before this narrow segment, the intestine will look bulged. The bulging is caused by blocked stool stretching the intestine. Manometry During manometry, the doctor inflates a small balloon inside the rectum. Normally, the rectal muscles will relax. If the muscles dont relax, HD may be the problem. This test is most often done in older children and adults. Biopsy Biopsy is the most accurate test for HD. The doctor removes a tiny piece of the large intestine and looks at it with a microscope. If nerve cells are missing, HD is the problem.
What causes limbic encephalitis? In many patients limbic encephalitis is a paraneoplastic syndrome, which is most commonly associated with small cell lung cancer (SCLC), breast cancer, testicular tumors, teratomas, Hodgkin's lymphoma, and thymomas. Out of the various cancers linked to limbic encephalitis, the typically associated tumors are SCLC, which are present in about 40% of patients that have the paraneoplastic form of limbic encephalitis. Seminoma are present in 25% of patients. At a lower rate, nearly any other tumor may be associated. Limbic encephalitis can also occur in the absence of cancer such as in the case of an viral infection and systemic autoimmune disorders. The underlying cause of limbic encephalitis is probably an autoimmune reaction which is brought about by cancer, tumors, infections, or autoimmune disorders.
Your throat is a tube that carries food to your esophagus and air to your windpipe and larynx. The technical name for throat is pharynx. Throat problems are common. You've probably had a sore throat. The cause is usually a viral infection, but other causes include allergies, infection with strep bacteria or the upward movement of stomach acids into the esophagus, called GERD. Other problems that affect the throat include - Tonsillitis - an infection in the tonsils - Pharyngitis - inflammation of the pharynx - Cancers - Croup - inflammation, usually in small children, which causes a barking cough Most throat problems are minor and go away on their own. Treatments, when needed, depend on the problem.
Spastic paraplegia type 3A is one of a group of genetic disorders known as hereditary spastic paraplegias. These disorders are characterized by muscle stiffness (spasticity) and weakness in the lower limbs (paraplegia). Hereditary spastic paraplegias are often divided into two types: pure and complex. The pure types involve only the lower limbs, while the complex types also involve other areas of the body; additional features can include changes in vision, changes in intellectual functioning, difficulty walking, and disturbances in nerve function (neuropathy). Spastic paraplegia type 3A is usually a pure hereditary spastic paraplegia, although a few complex cases have been reported. In addition to spasticity and weakness, which typically affect both legs equally, people with spastic paraplegia type 3A can also experience progressive muscle wasting (amyotrophy) in the lower limbs, reduced bladder control, an abnormal curvature of the spine (scoliosis), loss of sensation in the feet (peripheral neuropathy), or high arches of the feet (pes cavus). The signs and symptoms of spastic paraplegia type 3A usually appear before the age of 10; the average age of onset is 4 years. In some affected individuals the condition slowly worsens over time, sometimes leading to a need for walking support.
Your pleura is a large, thin sheet of tissue that wraps around the outside of your lungs and lines the inside of your chest cavity. Between the layers of the pleura is a very thin space. Normally it's filled with a small amount of fluid. The fluid helps the two layers of the pleura glide smoothly past each other as your lungs breathe air in and out. Disorders of the pleura include - Pleurisy - inflammation of the pleura that causes sharp pain with breathing - Pleural effusion - excess fluid in the pleural space - Pneumothorax - buildup of air or gas in the pleural space - Hemothorax - buildup of blood in the pleural space Many different conditions can cause pleural problems. Viral infection is the most common cause of pleurisy. The most common cause of pleural effusion is congestive heart failure. Lung diseases, like COPD, tuberculosis, and acute lung injury, cause pneumothorax. Injury to the chest is the most common cause of hemothorax. Treatment focuses on removing fluid, air, or blood from the pleural space, relieving symptoms, and treating the underlying condition. NIH: National Heart, Lung, and Blood Institute
Summary : When you're pregnant, eating healthy foods is more important than ever. You need more protein, iron, calcium, and folic acid than you did before pregnancy. You also need more calories. But "eating for two" doesn't mean eating twice as much. It means that the foods you eat are the main source of nutrients for your baby. Sensible, balanced meals will be best for you and your baby. You should gain weight gradually during your pregnancy, with most of the weight gained in the last trimester. Generally, doctors suggest women gain weight at the following rate: - 2 to 4 pounds total during the first trimester - 3 to 4 pounds per month for the second and third trimesters Most women need 300 calories a day more during at least the last six months of pregnancy than they did before they were pregnant. But not all calories are equal. Your baby needs healthy foods that are packed with nutrients - not "empty calories" such as those found in soft drinks, candies, and desserts. Dept. of Health and Human Services Office on Women's Health
Treatment is symptomatic and supportive, and may include drug therapy.
Hypolipoproteinemia refers to unusually low levels of fats (lipids) in the blood. Low lipid levels may be caused by rare genetic conditions, or be a sign of another disorder such as overactive thyroid, anemia, undernutrition, cancer, chronic infection, or impaired absorption of foods from the digestive tract. Associated genetic disorders includes abetalipoproteinemia, hypobetalipoproteinemia, and chylomicron retention disease. Symptoms of the genetic or familial form of hypolipoproteinemia varies. In hypobetalipoproteinemia the low density lipoprotein (LDL) cholesterol levels are very low, yet people with this syndrome typically have no symptoms nor require treatment. Other forms result in absent or near absent LDL levels and can cause serious symptoms in infancy and early childhood.
This condition is inherited in an autosomal recessive pattern, which means both copies of the gene in each cell have mutations. The parents of an individual with an autosomal recessive condition each carry one copy of the mutated gene, but they typically do not show signs and symptoms of the condition.
Kufs disease is a condition that primarily affects the nervous system, causing problems with movement and intellectual function that worsen over time. The signs and symptoms of Kufs disease typically appear around age 30, but they can develop anytime between adolescence and late adulthood. Two types of Kufs disease have been described: type A and type B. The two types are differentiated by their genetic cause, pattern of inheritance, and certain signs and symptoms. Type A is characterized by a combination of seizures and uncontrollable muscle jerks (myoclonic epilepsy), a decline in intellectual function (dementia), impaired muscle coordination (ataxia), involuntary movements such as tremors or tics, and speech difficulties (dysarthria). Kufs disease type B shares many features with type A, but it is distinguished by changes in personality and is not associated with myoclonic epilepsy or dysarthria. The signs and symptoms of Kufs disease worsen over time, and affected individuals usually survive about 15 years after the disorder begins. Kufs disease is one of a group of disorders known as neuronal ceroid lipofuscinoses (NCLs), which are also known as Batten disease. These disorders affect the nervous system and typically cause progressive problems with vision, movement, and thinking ability. Kufs disease, however, does not affect vision. The different types of NCLs are distinguished by the age at which signs and symptoms first appear.
These resources address the diagnosis or management of osteoporosis-pseudoglioma syndrome: - Genetic Testing Registry: Osteoporosis with pseudoglioma - Lucile Packard Children's Hospital at Stanford: Juvenile Osteoporosis - MedlinePlus Encyclopedia: Bone Mineral Density Test - Merck Manual Home Health Edition: Osteoporosis These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Diagnostic Tests - Drug Therapy - Surgery and Rehabilitation - Genetic Counseling - Palliative Care
These resources address the diagnosis or management of glycogen storage disease type VI: - Gene Review: Gene Review: Glycogen Storage Disease Type VI - Genetic Testing Registry: Glycogen storage disease, type VI These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Diagnostic Tests - Drug Therapy - Surgery and Rehabilitation - Genetic Counseling - Palliative Care
The incidence of XLAG is unknown; approximately 30 affected families have been described in the medical literature.
Hypothyroidism has many symptoms that can vary from person to person. Some common symptoms of hypothyroidism are - fatigue - weight gain - a puffy face - cold intolerance - joint and muscle pain - constipation - dry skin - dry, thinning hair - decreased sweating - heavy or irregular menstrual periods and impaired fertility - depression - slowed heart rate However, hypothyroidism develops slowly, so many people dont notice symptoms of the disease. Symptoms more specific to Hashimotos disease are a goiter and a feeling of fullness in the throat. Hypothyroidism can contribute to high cholesterol, so people with high cholesterol should be tested for hypothyroidism. Rarely, severe, untreated hypothyroidism may lead to myxedema coma, an extreme form of hypothyroidism in which the bodys functions slow to the point that it becomes life threatening. Myxedema requires immediate medical treatment.
How is hereditary leiomyomatosis and renal cell cancer inherited? Hereditary leiomyomatosis and renal cell cancer (HLRCC) is inherited in an autosomal dominant pattern, which means that having one mutated copy of the gene in each cell is enough to cause symptoms of the condition. In some cases, an affected person inherits the mutated copy of the gene from an affected parent. Other cases result from new mutations in the gene and that occur for the first time in in the affected individual. When an individual with an autosomal dominant condition has children, each child has a 50% (1 in 2) risk to inherit the mutated gene. This is the case regardless of which parent has the condition.
This condition is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder.
These resources address the diagnosis or management of early-onset glaucoma: - Gene Review: Gene Review: Primary Congenital Glaucoma - Genetic Testing Registry: Glaucoma, congenital - Genetic Testing Registry: Primary open angle glaucoma juvenile onset 1 - MedlinePlus Encyclopedia: Glaucoma These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Diagnostic Tests - Drug Therapy - Surgery and Rehabilitation - Genetic Counseling - Palliative Care
Gilbert syndrome is a relatively mild condition characterized by periods of elevated levels of a toxic substance called bilirubin in the blood (hyperbilirubinemia). Bilirubin, which has an orange-yellow tint, is produced when red blood cells are broken down. This substance is removed from the body only after it undergoes a chemical reaction in the liver, which converts the toxic form of bilirubin (unconjugated bilirubin) to a nontoxic form called conjugated bilirubin. People with Gilbert syndrome have a buildup of unconjugated bilirubin in their blood (unconjugated hyperbilirubinemia). In affected individuals, bilirubin levels fluctuate and very rarely increase to levels that cause jaundice, which is yellowing of the skin and whites of the eyes. Gilbert syndrome is usually recognized in adolescence. If people with this condition have episodes of hyperbilirubinemia, these episodes are generally mild and typically occur when the body is under stress, for instance because of dehydration, prolonged periods without food (fasting), illness, vigorous exercise, or menstruation. Some people with Gilbert syndrome also experience abdominal discomfort or tiredness. However, approximately 30 percent of people with Gilbert syndrome have no signs or symptoms of the condition and are discovered only when routine blood tests reveal elevated unconjugated bilirubin levels.
Multicentric osteolysis, nodulosis, and arthropathy (MONA) describes a rare inherited disease characterized by a loss of bone tissue (osteolysis), particularly in the hands and feet. MONA includes a condition formerly called nodulosis-arthropathy-osteolysis (NAO) syndrome. It may also include a similar disorder called Torg syndrome, although it is unknown whether Torg syndrome is actually part of MONA or a separate disorder caused by a mutation in a different gene. In most cases of MONA, bone loss begins in the hands and feet, causing pain and limiting movement. Bone abnormalities can later spread to other areas of the body, with joint problems (arthropathy) occurring in the elbows, shoulders, knees, hips, and spine. Most people with MONA develop low bone mineral density (osteopenia) and thinning of the bones (osteoporosis) throughout the skeleton. These abnormalities make bones brittle and more prone to fracture. The bone abnormalities also lead to short stature. Many affected individuals develop subcutaneous nodules, which are firm lumps of noncancerous tissue underneath the skin, especially on the soles of the feet. Some affected individuals also have skin abnormalities including patches of dark, thick, and leathery skin. Other features of MONA can include clouding of the clear front covering of the eye (corneal opacity), excess hair growth (hypertrichosis), overgrowth of the gums, heart abnormalities, and distinctive facial features that are described as "coarse."
The inheritance pattern of multiple sclerosis is unknown, although the condition does appear to be passed down through generations in families. The risk of developing multiple sclerosis is higher for siblings or children of a person with the condition than for the general population.
Diarrhea is treated by replacing lost fluids, salts, and minerals to prevent dehydration. Taking medicine to stop diarrhea can be helpful in some cases. Medicines you can buy over the counter without a prescription include loperamide (Imodium) and bismuth subsalicylate (Pepto-Bismol, Kaopectate). Stop taking these medicines if symptoms get worse or if the diarrhea lasts more than 2 days. If you have bloody diarrhea, you should not use over-the-counter diarrhea medicines. These medicines may make diarrhea last longer. The health care provider will usually prescribe antibiotics instead. Over-the-counter medicines for diarrhea may be dangerous for babies and children. Talk with the health care provider before giving your child these medicines.
Hypophosphatasia (HPP) is a genetic condition that causes abnormal development of the bones and teeth. The severity of HPP can vary widely, from fetal death to fractures that don't begin until adulthood. Signs and symptoms may include poor feeding and respiratory problems in infancy; short stature; weak and soft bones; short limbs; other skeletal abnormalities; and hypercalcemia. Complications can be life-threatening. The mildest form of the condition, called odontohypophosphatasia, only affects the teeth. HPP is caused by mutations in the ALPL gene. Perinatal (onset before birth) and infantile HPP are inherited in an autosomal recessive manner. The milder forms, especially adult forms and odontohypophosphatasia, may be inherited in an autosomal recessive or autosomal dominant manner. While treatment has always been symptomatic and supportive, recently an enzyme replacement therapy (ERT) called asfotase alfa has been show to improve bone manifestations people with childhood onset HPP and has been approved by the FDA.
Glycogen storage disease type VI (also known as GSDVI or Hers disease) is an inherited disorder caused by an inability to break down a complex sugar called glycogen in liver cells. A lack of glycogen breakdown interferes with the normal function of the liver. The signs and symptoms of GSDVI typically begin in infancy to early childhood. The first sign is usually an enlarged liver (hepatomegaly). Affected individuals may also have low blood sugar (hypoglycemia) or a buildup of lactic acid in the body (lactic acidosis) during prolonged periods without food (fasting). The signs and symptoms of GSDVI tend to improve with age; most adults with this condition do not have any related health problems.
This condition is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder. In some cases, an affected person inherits the mutation from one affected parent. Other cases result from new mutations in the gene and occur in people with no history of the disorder in their family.
Pseudoxanthoma elasticum, PXE, is an inherited disorder that causes calcium and other minerals to accumulate in the elastic fibers of the skin, eyes, and blood vessels, and less frequently in other areas such as the digestive tract. PXE may cause the following symptoms: growth of yellowish bumps on the skin of the neck, under the arms, or in the groin area; reduced vision; periodic weakness in the legs (claudication); or bleeding in the gastrointestinal tract, particularly the stomach. A clinical diagnosis of PXE can be made when an individual is found to have both the characteristic eye findings and yellow bumps on the skin. ABCC6 is the only gene known to be associated with this condition. Currently, there is no treatment for this condition, but affected individuals may benefit from routine visits to an eye doctor who specializes in retinal disorders, and by having regular physical examinations with their primary physician.
In animals, rabies is diagnosed using the direct fluorescent antibody (DFA) test, which looks for the presence of rabies virus antigens in brain tissue. In humans, several tests are required. Rapid and accurate laboratory diagnosis of rabies in humans and other animals is essential for timely administration of postexposure prophylaxis. Within a few hours, a diagnostic laboratory can determine whether or not an animal is rabid and inform the responsible medical personnel. The laboratory results may save a patient from unnecessary physical and psychological trauma, and financial burdens, if the animal is not rabid. In addition, laboratory identification of positive rabies cases may aid in defining current epidemiologic patterns of disease and provide appropriate information for the development of rabies control programs. The nature of rabies disease dictates that laboratory tests be standardized, rapid, sensitive, specific, economical, and reliable.
This condition is inherited in an autosomal recessive pattern, which means both copies of the gene in each cell have mutations. The parents of an individual with an autosomal recessive condition each carry one copy of the mutated gene, but they typically do not show signs and symptoms of the condition.
Your health care team may teach you how to test for chemicals called ketones in your morning urine or in your blood. High levels of ketones are a sign that your body is using your body fat for energy instead of the food you eat. Using fat for energy is not recommended during pregnancy. Ketones may be harmful for your baby. If your ketone levels are high, your doctor may suggest that you change the type or amount of food you eat. Or you may need to change your meal or snack times.
These resources address the diagnosis or management of SMARD1: - Genetic Testing Registry: Spinal muscular atrophy with respiratory distress 1 These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Diagnostic Tests - Drug Therapy - Surgery and Rehabilitation - Genetic Counseling - Palliative Care
What causes Behr syndrome? The exact cause of Behr syndrome is not known; however, a genetic cause is suspected based on the families identified, thus far.
This condition is inherited in an autosomal recessive pattern, which means both copies of the gene in each cell have mutations. The parents of an individual with an autosomal recessive condition each carry one copy of the mutated gene, but they typically do not show signs and symptoms of the condition.
Summary : Health insurance helps protect you from high medical care costs. It is a contract between you and your insurance company. You buy a plan or policy, and the company agrees to pay part of your expenses when you need medical care. Many people in the United States get a health insurance policy through their employers. In most cases, the employer helps pay for that insurance. Insurance through employers is often with a managed care plan. These plans contract with health care providers and medical facilities to provide care for members at reduced costs. You can also purchase health insurance on your own. People who meet certain requirements can qualify for government health insurance, such as Medicare and Medicaid. The Affordable Care Act expands health insurance coverage for many people in the U.S.
The exact incidence of amelogenesis imperfecta is uncertain. Estimates vary widely, from 1 in 700 people in northern Sweden to 1 in 14,000 people in the United States.
Spastic paraplegia type 8 is part of a group of genetic disorders known as hereditary spastic paraplegias. These disorders are characterized by progressive muscle stiffness (spasticity) and the development of paralysis of the lower limbs (paraplegia). Hereditary spastic paraplegias are divided into two types: pure and complex. The pure types involve only the nerves and muscles controlling the lower limbs and bladder, whereas the complex types also have significant involvement of the nervous system in other parts of the body. Spastic paraplegia type 8 is a pure hereditary spastic paraplegia. Like all hereditary spastic paraplegias, spastic paraplegia type 8 involves spasticity of the leg muscles and muscle weakness. People with this condition can also experience exaggerated reflexes (hyperreflexia), a decreased ability to feel vibrations, muscle wasting (amyotrophy), and reduced bladder control. The signs and symptoms of spastic paraplegia type 8 usually appear in early to mid-adulthood. As the muscle weakness and spasticity get worse, some people may need the aid of a cane, walker, or wheelchair.
Onset of symptoms of CMT is most often in adolescence or early adulthood, however presentation may be delayed until mid-adulthood. Progression of symptoms is very gradual. The degeneration of motor nerves results in muscle weakness and atrophy in the extremities (arms, legs, hands, or feet), and the degeneration of sensory nerves results in a reduced ability to feel heat, cold, and pain. There are many forms of CMT disease. The severity of symptoms may vary greatly among individuals and some people may never realize they have the disorder. CMT is not fatal and people with most forms of CMT have a normal life expectancy.
These resources address the diagnosis or management of myostatin-related muscle hypertrophy: - Gene Review: Gene Review: Myostatin-Related Muscle Hypertrophy - Genetic Testing Registry: Myostatin-related muscle hypertrophy These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Diagnostic Tests - Drug Therapy - Surgery and Rehabilitation - Genetic Counseling - Palliative Care
Myelodysplastic syndromes (MDS) are a rare group of blood disorders characterized by abnormal development of blood cells within the bone marrow. Individuals with MDS have abnormally low blood cell levels (low blood counts). Signs and symptoms associated with MDS include dizziness, fatigue, weakness, shortness of breath, bruising and bleeding, frequent infections, and headaches. In some cases, MDS may progress to bone marrow failure or an acute leukemia. The exact cause of MDS is unknown. It sometimes runs in families, but no disease-causing gene has been identified. Treatment depends on the affected individual's age, general health, and type of MDS and may include red cell and/or platelet transfusions and antibiotics.
Hypohidrotic ectodermal dysplasia is one of about 150 types of ectodermal dysplasia in humans. Before birth, these disorders result in the abnormal development of structures including the skin, hair, nails, teeth, and sweat glands. Most people with hypohidrotic ectodermal dysplasia have a reduced ability to sweat (hypohidrosis) because they have fewer sweat glands than normal or their sweat glands do not function properly. Sweating is a major way that the body controls its temperature; as sweat evaporates from the skin, it cools the body. An inability to sweat can lead to a dangerously high body temperature (hyperthermia), particularly in hot weather. In some cases, hyperthermia can cause life-threatening medical problems. Affected individuals tend to have sparse scalp and body hair (hypotrichosis). The hair is often light-colored, brittle, and slow-growing. This condition is also characterized by absent teeth (hypodontia) or teeth that are malformed. The teeth that are present are frequently small and pointed. Hypohidrotic ectodermal dysplasia is associated with distinctive facial features including a prominent forehead, thick lips, and a flattened bridge of the nose. Additional features of this condition include thin, wrinkled, and dark-colored skin around the eyes; chronic skin problems such as eczema; and a bad-smelling discharge from the nose (ozena).
Prostate cancer is the most common nonskin cancer among men in the United States. Prostate cancer is found mainly in older men. Although the number of men with prostate cancer is large, most men diagnosed with this disease do not die from it. Prostate cancer causes more deaths in men than any other cancer except lung cancer and colorectal cancer. Prostate cancer occurs more often in African-American men than in white men. African-American men with prostate cancer are more likely to die from the disease than white men with prostate cancer.
Primary ciliary dyskinesia can result from mutations in many different genes. These genes provide instructions for making proteins that form the inner structure of cilia and produce the force needed for cilia to bend. Coordinated back and forth movement of cilia is necessary for the normal functioning of many organs and tissues. The movement of cilia also helps establish the left-right axis (the imaginary line that separates the left and right sides of the body) during embryonic development. Mutations in the genes that cause primary ciliary dyskinesia result in defective cilia that move abnormally or are unable to move (immotile). Because cilia have many important functions within the body, defects in these cell structures cause a variety of signs and symptoms. Mutations in the DNAI1 and DNAH5 genes account for up to 30 percent of all cases of primary ciliary dyskinesia. Mutations in the other genes associated with this condition are found in only a small percentage of cases. In many people with primary ciliary dyskinesia, the cause of the disorder is unknown.