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These resources address the diagnosis or management of GM1 gangliosidosis: - Genetic Testing Registry: Gangliosidosis GM1 type 3 - Genetic Testing Registry: Gangliosidosis generalized GM1 type 1 - Genetic Testing Registry: Infantile GM1 gangliosidosis - Genetic Testing Registry: Juvenile GM>1< gangliosidosis Thes... |
What causes dentinogenesis imperfecta? Mutations in the DSPP gene cause dentinogenesis imperfecta. The DSPP gene provides instructions for making three proteins that are essential for normal tooth development. These proteins are involved in the formation of dentin, which is a bone-like substance that makes up the prote... |
Is genetic testing available for systemic scleroderma? Because systemic scleroderma is not caused by a mutation in any one specific gene, clinical genetic testing to confirm a diagnosis or identify a "carrier" is not currently available. Even if someone is known to carry a version of a gene that may make them suscepti... |
Retinitis pigmentosa is one of the most common inherited diseases of the retina (retinopathies). It is estimated to affect 1 in 3,500 to 1 in 4,000 people in the United States and Europe. |
Li-Fraumeni syndrome is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to increase the risk of developing cancer. In most cases, an affected person has a parent and other family members with cancers characteristic 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. |
Treatment of gastroparesis depends on the severity of the persons symptoms. In most cases, treatment does not cure gastroparesis, which is usually a chronic, or long-lasting, condition. Gastroparesis is also a relapsing conditionthe symptoms can come and go for periods of time. Treatment helps people manage the conditi... |
Annular atrophic lichen planus (LP) is a rare form of lichen planus, which is a condition that affects the skin and/or mouth. In annular atrophic LP, specifically, affected people develop skin lesions with features of both annular LP and atrophic LP - ring-shaped, slightly raised, purple lesions with central atrophy (t... |
Most people with a 15q13.3 microdeletion are missing a sequence of about 2 million DNA building blocks (base pairs), also written as 2 megabases (Mb), at position q13.3 on chromosome 15. The exact size of the deleted region varies, but it typically contains at least six genes. This deletion usually affects one of the t... |
These resources address the diagnosis or management of CASK-related intellectual disability: - Gene Review: Gene Review: CASK-Related Disorders - Genetic Testing Registry: Mental retardation and microcephaly with pontine and cerebellar hypoplasia These resources from MedlinePlus offer information about the diagnosi... |
Hereditary spastic paraplegia (HSP), also called familial spastic paraparesis (FSP), refers to a group of inherited disorders that are characterized by progressive weakness and spasticity (stiffness) of the legs. Early in the disease course, there may be mild gait difficulties and stiffness. These symptoms typically sl... |
Juvenile Batten disease is the most common type of NCL, but its exact prevalence is unknown. Collectively, all forms of NCL affect an estimated 1 in 100,000 individuals worldwide. NCLs are more common in Finland, where approximately 1 in 12,500 individuals are affected. |
These resources address the diagnosis or management of hyperprolinemia: - Baby's First Test - Genetic Testing Registry: Deficiency of pyrroline-5-carboxylate reductase - Genetic Testing Registry: Proline dehydrogenase deficiency These resources from MedlinePlus offer information about the diagnosis and management ... |
Metabolic syndrome is a grouping of traits and medical conditions that puts people at risk for both heart disease and type 2 diabetes. It is defined by the National Cholesterol Education Program as having any three of the following five traits and medical conditions:
Traits and Medical Conditions De... |
How might Gerstmann-Straussler-Scheinker disease be treated? The treatment of Gerstmann-Straussler-Scheinker disease (GSS) is based on the signs and symptoms present in each person. There is currently no cure for the condition and no known treatments to slow its progression. GeneReviews' Web site offers more specific i... |
Summary : Protein is in every cell in the body. Our bodies need protein from the foods we eat to build and maintain bones, muscles and skin. We get proteins in our diet from meat, dairy products, nuts, and certain grains and beans. Proteins from meat and other animal products are complete proteins. This means they supp... |
Diphtheria is a serious bacterial infection. You can catch it from a person who has the infection and coughs or sneezes. You can also get infected by coming in contact with an object, such as a toy, that has bacteria on it. Diphtheria usually affects the nose and throat. Symptoms include - Sore throat - Swo... |
Hereditary antithrombin deficiency is typically inherited in an autosomal dominant pattern, which means one altered copy of the SERPINC1 gene in each cell is sufficient to cause the disorder. Inheriting two altered copies of this gene in each cell is usually incompatible with life; however, a few severely affected indi... |
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. |
Congenital afibrinogenemia is a rare condition that occurs in approximately 1 in 1 million newborns. |
Some forgetfulness can be a normal part of aging. However, some people have more memory problems than other people their age. This condition is called mild cognitive impairment, or MCI. People with MCI can take care of themselves and do their normal activities. MCI memory problems may include - Losing things o... |
These resources address the diagnosis or management of tetrahydrobiopterin deficiency: - Baby's First Test: Biopterin Defect in Cofactor Biosynthesis - Baby's First Test: Biopterin Defect in Cofactor Regeneration - Genetic Testing Registry: 6-pyruvoyl-tetrahydropterin synthase deficiency - Genetic Testing Registry:... |
Health history can affect the risk of gastrointestinal carcinoid tumors. Anything that increases a person's chance of developing a disease is called a risk factor. Having a risk factor does not mean that you will get cancer; not having risk factors doesnt mean that you will not get cancer. Talk to your doctor if you th... |
The outlook for individuals with dysautonomia depends on the particular diagnostic category. People with chronic, progressive, generalized dysautonomia in the setting of central nervous system degeneration have a generally poor long-term prognosis. Death can occur from pneumonia, acute respiratory failure, or sudden ca... |
Certain diseases and disorders can increase the risk of childhood liver cancer. Anything that increases your chance of getting a disease is called a risk factor. Having a risk factor does not mean that you will get cancer; not having risk factors doesnt mean that you will not get cancer. Talk with your childs doctor if... |
HNSCC is the seventh most common cancer worldwide. Approximately 600,000 new cases are diagnosed each year, including about 50,000 in the United States. HNSCC occurs most often in men in their 50s or 60s, although the incidence among younger individuals is increasing. |
What are the signs and symptoms of Gardner-Diamond syndrome? People with Gardner-Diamond syndrome have reported that bruises occur either spontaneously or after trauma or surgery (even at other sites of the body). Some people are able to pinpoint exactly when the bruising occurred, while others are not. Episodes of bru... |
Is genetic testing available for Danon disease? Yes. GeneTests lists laboratories offering clinical genetic testing for Danon disease. Clinical genetic tests are ordered to help diagnose a person or family and to aid in decisions regarding medical care or reproductive issues. Talk to your health care provider or a gene... |
PDGFRA-associated chronic eosinophilic leukemia is a rare condition; however, the exact prevalence is unknown. |
These resources address the diagnosis or management of glycogen storage disease type IV: - Gene Review: Gene Review: Glycogen Storage Disease Type IV - Genetic Testing Registry: Glycogen storage disease, type IV - MedlinePlus Encyclopedia: Dilated Cardiomyopathy - MedlinePlus Encyclopedia: Failure to Thrive These... |
Aceruloplasminemia has been seen worldwide, but its overall prevalence is unknown. Studies in Japan have estimated that approximately 1 in 2 million adults in this population are affected. |
Sepsis is a serious illness. It happens when your body has an overwhelming immune response to a bacterial infection. The chemicals released into the blood to fight the infection trigger widespread inflammation. This leads to blood clots and leaky blood vessels. They cause poor blood flow, which deprives your body's org... |
Robinow syndrome is a rare disorder that affects the bones as well as other parts of the body. Two forms of Robinow syndrome have been described: autosomal recessive Robinow syndrome, and the milder autosomal dominant Robinow syndrome. They are distinguished based on their modes of inheritance, symptoms, and severity. ... |
Familial hemophagocytic lymphohistiocytosis may be caused by mutations in any of several genes. These genes provide instructions for making proteins that help destroy or deactivate lymphocytes that are no longer needed. By controlling the number of activated lymphocytes, these genes help regulate immune system function... |
This condition is inherited in an autosomal recessive pattern, which means both copies of the gene in each cell have mutations. In almost all cases, the parents of an individual with an autosomal recessive condition each carry one copy of the mutated gene but typically do not show signs and symptoms of the condition. ... |
PRS superactivity is believed to be a rare disorder. Approximately 30 families with the condition have been reported. More than two thirds of these families are affected by the milder form of the disease. |
How is Hallermann-Streiff syndrome inherited? The majority of cases of Hallermann-Streiff syndrome appear to be sporadic (occurring in individuals with no history of the condition in the family). There have been reports of affected individuals having multiple, unaffected children. Although some have reported it appears... |
Hennekam syndrome is a rare condition that affects the lymphatic system. Signs and symptoms of the condition are generally noticeable at birth and vary significantly from person to person, even within the same family. Affected people generally experience lymphangiectasia (lymphatic vessels that are abnormally expanded)... |
47, XYY syndrome is a condition in males characterized by features that occur due to having an extra copy of the Y chromosome in each cell. Signs and symptoms can vary and range from barely noticeable to more severe; many men with the extra Y chromosome are completely unaware of its presence. Appearance and intelligenc... |
Platyspondylic lethal skeletal dysplasia, Torrance type is a severe disorder of bone growth. People with this condition have very short arms and legs, underdeveloped pelvic bones, and unusually short fingers and toes (brachydactyly). This disorder is also characterized by flattened spinal bones (platyspondyly) and an e... |
These resources address the diagnosis or management of gray platelet syndrome: - Genetic Testing Registry: Gray platelet syndrome - National Heart Lung and Blood Institute: How is Thrombocytopenia Treated? These resources from MedlinePlus offer information about the diagnosis and management of various health condit... |
Pearson marrow-pancreas syndrome is generally not inherited but arises from new (de novo) mutations that likely occur in early embryonic development. |
The National Institute of Neurological Disorders and Stroke (NINDS) conducts research related to brain abnormalities and disorders of the nervous system such as arachnoid cysts in laboratories at the National Institutes of Health (NIH), and supports additional research through grants to major medical institutions acros... |
These resources address the diagnosis or management of Lesch-Nyhan syndrome: - Gene Review: Gene Review: Lesch-Nyhan Syndrome - Genetic Testing Registry: Lesch-Nyhan syndrome - MedlinePlus Encyclopedia: Lesch-Nyhan Syndrome - MedlinePlus Encyclopedia: Uric Acid Crystals These resources from MedlinePlus offer info... |
Mondini dysplasia is a type of inner ear malformation that is present at birth (congenital). Individuals with Mondini dysplasia have one and a half coils of the cochlea instead of the normal two coils. It may occur in one ear (unilateral) or both ears (bilateral) and can cause varying degrees of sensorineural hearing l... |
How is hereditary lymphedema type II inherited? Hereditary lymphedema type II appears to have an autosomal dominant pattern of inheritance, which means that one copy of an altered gene in each cell is sufficient to cause the disorder. People with hereditary lymphedema type II usually have at least one other affected fa... |
Summary : Pulmonary rehabilitation (rehab) is a medically supervised program to help people who have chronic breathing problems, including - COPD (chronic obstructive pulmonary disease) - Sarcoidosis - Idiopathic pulmonary fibrosis - Cystic fibrosis During pulmonary rehab you may do exercise traini... |
- Mutations in single genes can cause rare forms of diabetes. - Genetic testing can identify many forms of monogenic diabetes. - A physician evaluates whether genetic testing is appropriate. - A correct diagnosis aided by genetic testing can lead to optimal treatment. - Recent research results show that people with... |
Amyotrophic lateral sclerosis (ALS) is a nervous system disease that attacks nerve cells called neurons in your brain and spinal cord. These neurons transmit messages from your brain and spinal cord to your voluntary muscles - the ones you can control, like in your arms and legs. At first, this causes mild muscle probl... |
How might Tylosis with esophageal cancer be treated? Affected individuals may have periodic endoscopic and oral cavity evaluations by a gastroentrologist to detect esophageal cancer. For the palmoplantar keratoderma, a dermatologist may recommend oral retinoids such as etretinate, isotretinoin, and acitretin. Topical t... |
How might Lafora disease be treated? Unfortunately, there is currently no cure for Lafora disease or way to slow the progression of the condition. Treatment is based on the signs and symptoms present in each person. For example, certain medications may be recommended to managed generalized seizures. In the advanced sta... |
What causes Lucey-Driscoll syndrome? Lucey-Driscoll syndrome is caused by high levels of a bilirubin "conjugating enzyme inhibitor which is a substance that limits the ability of bilirubin to bind to an enzyme. When bilirubin does not bind efficiently, it builds up in the bloodstream. This inhibitor is thought to occur... |
When you play the piano or hit a tennis ball you are activating the cerebellum. The cerebellum is the area of the brain that controls coordination and balance. Problems with the cerebellum include - Cancer - Genetic disorders - Ataxias - failure of muscle control in the arms and legs that result in movement... |
How might primary melanoma of the small intestine be diagnosed? A variety of tests may be involved in the initial diagnosis of the tumor, including contrast radiography, endoscopy, and CT scan. The tumor is confirmed by surgical resection. Careful study of tissue samples from the tumor under a microscope will show the ... |
Certain factors affect treatment options and prognosis (chance of recovery). The treatment options may depend on the following: - The number of hairy (leukemia) cells and healthy blood cells in the blood and bone marrow. - Whether the spleen is swollen. - Whether there are signs or symptoms of leukemia, s... |
How is ornithine transcarbamylase (OTC) deficiency inherited? Ornithine transcarbamylase (OTC) deficiency is an X-linked disorder. A condition is considered X-linked if the mutated gene that causes the disorder is located on the X chromosome, one of the two sex chromosomes. A characteristic of X-linked inheritance is t... |
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. |
Scientists have not yet found a way to prevent Alagille syndrome. However, complications of the disorder can be managed with the help of health care providers. Routine visits with a health care team are needed to prevent complications from becoming worse. |
Microcystic adnexal carcinoma is a rare tumor of the skin that most often develops in the head and neck region, particularly in the middle of the face, though it may occur in the skin of other parts of the body as well. The average age of diagnosis is 56. This tumor is often first noticed as a bump or yellowish spot ... |
How might mitochondrial neurogastrointestinal encephalopathy syndrome be diagnosed? The clinical diagnosis of mitochondrial neurogastrointestinal encephalopathy syndrome (MNGIE) is based on the presence of severe gastrointestinal dysmotility (when the muscles and nerves of the digestive system do not move food through ... |
What are the signs and symptoms of Nail dysplasia, isolated congenital? The Human Phenotype Ontology provides the following list of signs and symptoms for Nail dysplasia, isolated congenital. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can u... |
What are the signs and symptoms of Neutropenia lethal congenital with eosinophilia? The Human Phenotype Ontology provides the following list of signs and symptoms for Neutropenia lethal congenital with eosinophilia. If the information is available, the table below includes how often the symptom is seen in people with t... |
The prevalence of CCFDN is unknown. The disorder has been identified in about 150 individuals of Romani ethnicity. Thus far, no affected individuals have been observed outside this community. |
DMD-associated dilated cardiomyopathy appears to be an uncommon condition, although its prevalence is unknown. |
Charcot-Marie-Tooth disease (CMT) is a group of genetic nerve disorders. It is named after the three doctors who first identified it. In the United States, CMT affects about 1 in 2,500 people. CMT affects your peripheral nerves. Peripheral nerves carry movement and sensation signals between the brain and spinal cor... |
What are the signs and symptoms of Chronic active Epstein-Barr virus infection? The Human Phenotype Ontology provides the following list of signs and symptoms for Chronic active Epstein-Barr virus infection. If the information is available, the table below includes how often the symptom is seen in people with this cond... |
Chronic active Epstein-Barr virus infection is a rare condition in which the body makes too many lymphocytes, a type of white blood cell. Lymphocytes are an important part of the immune system because they help fight off diseases and protect the body from infection. About 95% of adults are infected with Epstein-Barr vi... |
Your elbow joint is made up of bone, cartilage, ligaments and fluid. Muscles and tendons help the elbow joint move. When any of these structures is hurt or diseased, you have elbow problems. Many things can make your elbow hurt. A common cause is tendinitis, an inflammation or injury to the tendons that attach musc... |
An estimated 400 million people worldwide have glucose-6-phosphate dehydrogenase deficiency. This condition occurs most frequently in certain parts of Africa, Asia, and the Mediterranean. It affects about 1 in 10 African American males in the United States. |
Prader-Willi syndrome affects an estimated 1 in 10,000 to 30,000 people worldwide. |
Renal tubular acidosis with deafness is a rare disorder; its prevalence is unknown. |
REN-related kidney disease is an inherited condition that affects kidney function. This condition causes slowly progressive kidney disease that usually becomes apparent during childhood. As this condition progresses, the kidneys become less able to filter fluids and waste products from the body, resulting in kidney fai... |
The prevalence of congenital myasthenic syndrome is unknown. At least 600 families with affected individuals have been described in the scientific literature. |
VLDLR-associated cerebellar hypoplasia is an inherited condition that affects the development of the brain. People with this condition have an unusually small and underdeveloped cerebellum, which is the part of the brain that coordinates movement. This brain malformation leads to problems with balance and coordination ... |
What causes Huntington disease? Huntington disease (HD) is caused by a change (mutation) in the HTT gene. This gene gives instructions for making a protein called huntingtin. The exact function of this protein is unclear, but it appears to be important to nerve cells (neurons) in the brain. The HTT gene mutation that c... |
These resources address the diagnosis or management of vitamin D-dependent rickets: - Genetic Testing Registry: Vitamin D-dependent rickets, type 1 - Genetic Testing Registry: Vitamin D-dependent rickets, type 2 - Genetic Testing Registry: Vitamin d-dependent rickets, type 2b, with normal vitamin d receptor These ... |
The National Institute of Neurological Disorders and Stroke (NINDS) conducts research related to dystonia in its laboratories at the National Institutes of Health (NIH) and also supports additional dystonia research through grants to major research institutions across the country. Scientists at other NIH Institutes (Na... |
This condition has an autosomal dominant pattern of inheritance, which means one copy of the altered gene in each cell is sufficient to cause the disorder. In the familial form, an affected person inherits the mutation from one affected parent. Most people with cerebral cavernous malformations have the sporadic form o... |
These resources address the diagnosis or management of platyspondylic lethal skeletal dysplasia, Torrance type: - Genetic Testing Registry: Platyspondylic lethal skeletal dysplasia Torrance type - MedlinePlus Encyclopedia: Lordosis These resources from MedlinePlus offer information about the diagnosis and managemen... |
The prevalence of X-linked spondyloepiphyseal dysplasia tarda is estimated to be 1 in 150,000 to 200,000 people worldwide. |
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 most 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 histor... |
How is postural orthostatic tachycardia syndrome diagnosed? A diagnosis of postural orthostatic tachycardia syndrome (POTS) is often suspected based on the presence of characteristic signs and symptoms. Additional testing can then be ordered to confirm the diagnosis. Many physicians will conduct a physical examination,... |
The prevalence of uromodulin-associated kidney disease is unknown. It accounts for fewer than 1 percent of cases of kidney disease. |
Most cases of juvenile idiopathic arthritis are sporadic, which means they occur in people with no history of the disorder in their family. A small percentage of cases of juvenile idiopathic arthritis have been reported to run in families, although the inheritance pattern of the condition is unclear. A sibling of a per... |
Congenital hypothyroidism affects an estimated 1 in 2,000 to 4,000 newborns. For reasons that remain unclear, congenital hypothyroidism affects more than twice as many females as males. |
These resources address the diagnosis or management of TH deficiency: - Gene Review: Gene Review: Tyrosine Hydroxylase Deficiency - Genetic Testing Registry: Segawa syndrome, autosomal recessive These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Di... |
These resources address the diagnosis or management of Weill-Marchesani syndrome: - Gene Review: Gene Review: Weill-Marchesani Syndrome - Genetic Testing Registry: Weill-Marchesani syndrome - Genetic Testing Registry: Weill-Marchesani syndrome 1 - Genetic Testing Registry: Weill-Marchesani syndrome 2 - Genetic Tes... |
Hemochromatosis is one of the most common genetic diseases in the United States. It's most common in Caucasians of Northern European descent. The disease is less common in African Americans, Hispanics, Asians, and American Indians.
Primary hemochromatosis is more common in men than in women. Also, olde... |
One type of surfactant dysfunction, SP-B deficiency, is estimated to occur in 1 in 1 million newborns worldwide. The prevalence of surfactant dysfunction due to other causes is unknown. |
Linear scleroderma is one sub-type of localized scleroderma, most commonly occurring in childhood. It is characterized by abnormalities of the skin and subcutaneous tissues that often follow a dermatomal distribution and that are found on one side of the body. Besides the lesion in the face or scalp there are also abn... |
Schistosomiasis is a disease caused by parasitic worms. Although the worms that cause schistosomiasis are not found in the United States, more than 200 million people are infected worldwide. Infection occurs through contact with contaminated water. The parasite in its infective stages is called a cercaria. It swims fre... |
The effect of Dandy-Walker Syndrome on intellectual development is variable, with some children having normal cognition and others never achieving normal intellectual development even when the excess fluid buildup is treated early and correctly. Longevity depends on the severity of the syndrome and associated malformat... |
These resources address the diagnosis or management of Lynch syndrome: - American Medical Association and National Coalition for Health Professional Education in Genetics: Understand the Basics of Genetic Testing for Hereditary Colorectal Cancer - Gene Review: Gene Review: Lynch Syndrome - GeneFacts: Lynch Syndrome:... |
Hypopituitarism occurs when the body has low levels of certain hormones made by the pituitary gland. The pituitary gland normally makes several hormones (including growth hormone, thyroid stimulating hormone, adrenocorticotropic hormone, prolactin, follicle stimulating hormone and luteinizing hormone, vasopressin, and... |
The NINDS supports and conducts research on disorders of the brain and nervous system such as striatonigral degeneration. This research focuses on finding ways to prevent and treat these disorders. |
How might leukoencephalopathy with vanishing white matter be treated? Treatment for leukoencephalopathy with vanishing white matter is supportive, aiming to alleviate symptoms. Management may include physical therapy and rehabilitation for motor dysfunction (mainly spasticity and ataxia); and anti-seizure medications f... |
Your chances of getting gestational diabetes are higher if you
- are overweight - have had gestational diabetes before - have given birth to a baby weighing more than 9 pounds - have a parent, brother, or sister with type 2 diabetes - have prediabetes, meaning your blood glucose levels are higher t... |
These resources address the diagnosis or management of paroxysmal nocturnal hemoglobinuria: - Duke University School of Medicine: Hemostasis & Thrombosis Center - Genetic Testing Registry: Paroxysmal nocturnal hemoglobinuria - MedlinePlus Encyclopedia: Paroxysmal nocturnal hemoglobinuria (PNH) - Memorial Sloan-Kett... |
There is no cure for Pelizaeus-Merzbacher disease, nor is there a standard course of treatment. Treatment is symptomatic and supportive and may include medication for movement disorders. |
The mission of the National Institute of Neurological Disorders and Stroke (NINDS) is to seek fundamental knowledge abuot the brain and nervous system, and to use that knowledge to reduce the burden of neurological disease. Research supported by the NINDS includes studies to understand how the brain and nervous system ... |
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