Unnamed: 0
int64
0
2.34M
titles
stringlengths
5
21.5M
abst
stringlengths
1
21.5M
2,326,800
The endoscopic endonasal approach for the management of craniopharyngiomas: a series of 103 patients.
Despite their benign histological appearance, craniopharyngiomas can be considered a challenge for the neurosurgeon and a possible source of poor prognosis for the patient. With the widespread use of the endoscope in endonasal surgery, this route has been proposed over the past decade as an alternative technique for th...
2,326,801
Self-limiting left ventricular wall rupture following myocardial infarction: a case report and literature review.
We report the case of a 62-year-old woman presenting with symptoms and findings of myocardial infarction and a left ventricular free wall rupture. Coronary angiography revealed a critical stenosis in the middle right coronary artery. A contrast left ventriculogram revealed extravasation of contrast through the inferola...
2,326,802
Age and SPARC change the extracellular matrix composition of the left ventricle.
Secreted protein acidic and rich in cysteine (SPARC), a collagen-binding matricellular protein, has been implicated in procollagen processing and deposition. The aim of this study was to investigate age- and SPARC-dependent changes in protein composition of the cardiac extracellular matrix (ECM). We studied 6 groups of...
2,326,803
Fitting C² continuous parametric surfaces to frontiers delimiting physiologic structures.
We present a technique to fit C(2) continuous parametric surfaces to scattered geometric data points forming frontiers delimiting physiologic structures in segmented images. Such mathematical representation is interesting because it facilitates a large number of operations in modeling. While the fitting of C(2) continu...
2,326,804
A novel idiopathic superficial neocortical degeneration and atrophy in young adult dogs.
A diffuse, chronic, superficial neocortical degeneration that resulted in atrophy was detected in five 1 to 2-year-old-dogs. Presenting neurologic signs included ataxia, dysphagia, blindness, and mentation changes. Magnetic resonance imaging on brains from 2 dogs demonstrated severe bilateral cerebrocortical atrophy an...
2,326,805
Sudden death from ruptured choroid plexus arteriovenous malformation.
Brain vascular malformations are recognized as having potential to produce hemorrhage, but leading to sudden death in children is uncommon. Arteriovenous malformations may be situated in any region of the brain, but very rarely, they can be restricted to the choroid plexus. We report here a rare case of sudden death in...
2,326,806
Targeting matrix metalloproteinases in heart disease: lessons from endogenous inhibitors.
Basic pharmacological/transgenic studies have clearly demonstrated a cause-effect relationship between the induction and activation of matrix metalloproteinases (MMPs) and adverse changes in the structure and function of the left ventricle (LV). Thus, regulation of MMP induction and/or activation would appear to be a p...
2,326,807
Ferret-mouse differences in interkinetic nuclear migration and cellular densification in the neocortical ventricular zone.
The thick outer subventricular zone (OSVZ) is characteristic of the development of human neocortex. How this region originates from the ventricular zone (VZ) is largely unknown. Recently, we showed that over-proliferation-induced acute nuclear densification and thickening of the VZ in neocortical walls of mice, which l...
2,326,808
Malignant irreversible global cerebral edema as a complication of fourth ventricular arachnoid cyst.
Arachnoid cysts are benign congenital lesions of the central nervous system accounting for 1% of all intracranial masses. Intraventricular location of arachnoid cyst especially in the fourth ventricle is rare. Fenestration or marsupialization of these "innocent-looking" benign cysts can lead to dreadful life-threatenin...
2,326,809
Prenatal diagnosis of multiple fetal anomalies in naphthalene-addicted pregnant women: a case report.
Naphthalene is one of the abused inhalants. It has been associated with acute and chronic health problems. To the authors' knowledge, prenatal exposure to naphthalene has never been discussed in humans.</AbstractText>The authors discuss a case of naphthalene-addicted pregnant women with multiple fetal anomalies. At 15 ...
2,326,810
Intermittent vs Continuous Administration of Nerve Growth Factor to Injured Medial Septal Cholinergic Neurons in Rat Basal Forebrain.
Many medial septal neurons of the basal forebrain are dependent on nerve growth factor (NGF) from the hippocampus for survival and maintenance of a cholinergic phenotype. When deprived of their source of NGF by axotomy, medial septal neuronal cell bodies atrophy and lose their cholinergic markers. This is similar to wh...
2,326,811
Pilomyxoid astrocytoma of the cerebellar vermis in an elderly patient.
Pilomyxoid astrocytoma (PMA) has recently been accepted as an aggressive variant of pilocytic astrocytoma with distinct histopathological features. PMAs have been frequently described in the pediatric population with a predilection for the hypothalamic/chiasmatic region.</AbstractText>A 72-year-old African American mal...
2,326,812
Structure and vascularization of the human hippocampus.
The hippocampus is a temporal brain structure belonging to the limbic lobe and is fundamentally involved in memory processing, learning, and emotions. It consists of two allocortex laminae: the gyrus dentatus and the cornu ammonis, one rolled up inside the other, creating a bulge in the temporal horn of the lateral ven...
2,326,813
Anatomy of the hippocampal formation.
The hippocampus is one of several brain regions that together comprise the hippocampal formation. The hippocampal formation is a prominent C-shaped structure bulging in the floor of the temporal horn of the lateral ventricle. The hippocampus proper consists of three major subfields (CA1-CA3). The other regions that tog...
2,326,814
Brain volumes and cognitive function in very-low-birth-weight (VLBW) young adults.
Preterm born very-low-birth-weight (VLBW: birth weight &#x2264;1500&#xa0;g) survivors have increased risk of perinatal brain injury that may cause deviant brain development and later neuroimpairments, including reduced cognitive functioning.</AbstractText>In this long-term follow up study of three year-cohorts (birth y...
2,326,815
Alcohol exposure inhibits adult neural stem cell proliferation.
Alcohol exposure can reduce adult proliferation and/or neurogenesis, but its impact on the ultimate neurogenic precursors, neural stem cells (NSCs), has been poorly addressed. Accordingly, the impact of voluntary consumption of alcohol on NSCs in the subventricular zone (SVZ) of the lateral ventricle was examined in th...
2,326,816
Dandy-Walker syndrome with psychotic symptoms: a case report.
Here we report the case of a patient with psychotic symptoms apparently resistant to antipsychotic treatments. Since the last admission in a psychiatric division the patient was diagnosed with Bipolar Disorder type I and then referred to our Outpatients Unit of Treatment Resistant Psychosis, where she was subsequently ...
2,326,817
Agmatine protects against intracerebroventricular streptozotocin-induced water maze memory deficit, hippocampal apoptosis and Akt/GSK3&#x3b2; signaling disruption.
Centrally administered streptozotocin (STZ), is known to cause Alzheimer&#x5f3;s like memory deterioration. It mainly affects insulin signaling pathways such as PI3/Akt and GSK-3&#x3b2; which are involved in cell survival. Previous studies indicate that STZ increases the ratio of Bax/Bcl-2 and thereby induces caspase-3...
2,326,818
Intralobar fibres of the occipital lobe: a post mortem dissection study.
The atlas by Heinrich Sachs (1892) provided an accurate description of the intralobar fibres of the occipital lobe, with a detailed representation of the short associative tracts connecting different parts of the lobe. Little attention has been paid to the work of Sachs since its publication. In this study, we present ...
2,326,819
[Construction of recombinant adenovirus vector co-expressing VEGF165 and SDF-1 genes and its expression in ischemic cerebral tissue of rats].
To construct a recombinant adenoviral vector carrying and co-expressing vascular endothelial growth factor 165 (VEGF165) and stromal cell derived factor 1 (SDF-1) and explore its co-expression in ischemic brain tissue in rats.</AbstractText>The VEGF165 and SDF-1 genes were directionally connected with internal ribosome...
2,326,820
Ethnicity-related variations of left ventricular remodeling in adolescent amateur football players.
Adult and adolescent elite black athletes display - as compared with their white counterparts - excessively increased left ventricle (LV) wall thickness (LVWT), mass (LVM), and relative wall thickness (RWT). To investigate such ethnicity-related differences in non-professional adolescent athletes, 138 male, amateur foo...
2,326,821
Choroid plexus coagulation in infants with extreme hydrocephalus or hydranencephaly.
OBJECT.: Severe hydrocephalus and hydranencephaly are common congenital conditions in Kenya. In patients with these conditions, ventriculoperitoneal (VP) shunts are associated with appreciable complications and endoscopic third ventriculostomies (ETVs) have limited success. Endoscopic choroid plexus coagulation (CPC) t...
2,326,822
Progress of in vivo electroporation in the rodent brain.
In vivo electroporation is one of the most efficient methods for introducing the nucleic acids into the target tissues, and thus plays a pivotal role in gene therapeutic studies. In vivo electroporation in rodent brains is often involved in injection of nucleic acids into the brain ventricle or specific area and then a...
2,326,823
Transcranial sonography (TCS) of brain parenchyma in movement disorders: quality standards, diagnostic applications and novel technologies.
Transcranial B-mode sonography (TCS) of brain parenchyma is being increasingly used as a diagnostic tool in movement disorders. Compared to other neuroimaging modalities such as magnetic resonance imaging (MRI) and computed tomography, TCS can be performed today with portable machines and has the advantages of noninvas...
2,326,824
Psychiatric manifestations associated with mega cisterna magna.
The Dandy-Walker variant is a milder form of the Dandy-Walker complex and is characterized by normal-sized posterior fossa, mild vermian hypoplasia, and a cystic lesion that communicates with the fourth ventricle. This syndrome has been described in association with schizophrenia, obsessive-compulsive disorder, manic e...
2,326,825
Transient Ischemic Dilation of the Left Ventricle on SPECT: Correlation with Findings at Coronary CT Angiography.
Transient ischemic dilation (TID) in the setting of abnormal stress-rest cardiac SPECT myocardial perfusion imaging (MPI) has been linked with increased cardiovascular risk. However, the significance of TID in the setting of an otherwise normal SPECT MPI study has not been clearly established. In this study, cardiac CT...
2,326,826
Chronic brain inflammation causes a reduction in GluN2A and GluN2B subunits of NMDA receptors and an increase in the phosphorylation of mitogen-activated protein kinases in the hippocampus.
Neuroinflammation plays a key role in the initiation and progression of neurodegeneration in Alzheimer's disease (AD). Chronic neuroinflammation results in diminished synaptic plasticity and loss of GluN1 N-methyl-D-aspartate (NMDA) receptors in the hippocampus, leading to the cognitive deficits that are the most commo...
2,326,827
Continuous postnatal neurogenesis contributes to formation of the olfactory bulb neural circuits and flexible olfactory associative learning.
The olfactory bulb (OB) is one of the two major loci in the mammalian brain where newborn neurons are constantly integrated into the neural circuit during postnatal life. Newborn neurons are generated from neural stem cells in the subventricular zone (SVZ) of the lateral ventricle and migrate to the OB through the rost...
2,326,828
Anti-inflammatory effect of tanshinone I in neuroprotection against cerebral ischemia-reperfusion injury in the gerbil hippocampus.
Tanshinone I (TsI) is an important lipophilic diterpene extracted from Danshen (Radix Salvia miltiorrhizae) and has been used in Asia for the treatment of cerebrovascular diseases such as ischemic stroke. In this study, we examined the neuroprotective effect of TsI against ischemic damage and its neuroprotective mechan...
2,326,829
Hydrogen sulfide attenuates the recruitment of CD11b&#x207a;Gr-1&#x207a; myeloid cells and regulates Bax/Bcl-2 signaling in myocardial ischemia injury.
Hydrogen sulfide, an endogenous signaling molecule, plays an important role in the physiology and pathophysiology of the cardiovascular system. Using a mouse model of myocardial infarction, we investigated the anti-inflammatory and anti-apoptotic effects of the H2S donor sodium hydrosulfide (NaHS). The results demonstr...
2,326,830
Hypoxia augments the calcium-activated chloride current carried by anoctamin-1 in cardiac vascular endothelial cells of neonatal mice.
The molecular identity of calcium-activated chloride channels (CaCCs) in vascular endothelial cells remains unknown. This study sought to identify whether anoctamin-1 (Ano1, also known as TMEM16A) functions as a CaCC and whether hypoxia alters the biophysical properties of Ano1 in mouse cardiac vascular endothelial cel...
2,326,831
A comparison of long-term survivors and short-term survivors with glioblastoma, subventricular zone involvement: a predictive factor for survival?
Long-term survival is rare in patients with glioblastoma (GBM). We set out to determine prognostic factors for patients with favorable and poor prognosis in regard of tumor localization to the subventricular zone (SZV).</AbstractText>We reviewed the clinical records, pre-operative and post-operative MRI imaging of 50 L...
2,326,832
[Effect of Buyang Huanwu Decoction and its disassembled recipes on rats' neurogenesis after focal cerebral ischemia].
To explore the effect of Buyang Huanwu Decoction (BYHWD) and its disassembled recipes on rats' neurogenesis after focal cerebral ischemia and to investigate its underlying molecular mechanisms.</AbstractText>Focal cerebral ischemia model was induced by occlusion of the right middle cerebral artery for 90 min using the ...
2,326,833
Targeted NGF siRNA delivery attenuates sympathetic nerve sprouting and deteriorates cardiac dysfunction in rats with myocardial infarction.
Nerve growth factor (NGF) is involved in nerve sprouting, hyper-innervation, angiogenesis, anti-apoptosis, and preservation of cardiac function after myocardial infarction (MI). Positively modulating NGF expression may represent a novel pharmacological strategy to improve post-infarction prognosis. In this study, lenti...
2,326,834
Takotsubo syndrome (stress cardiomyopathy): an intriguing clinical condition in search of its identity.
Takotsubo syndrome is a relatively frequent clinical entity presenting typically as an acute coronary syndrome in the absence of obstructive coronary artery disease and characterized angiographically by transient left ventricular systolic dysfunction, sparing the basal segments of the left ventricle ("apical ballooning...
2,326,835
Effects of pyruvate on the energetics of rat ventricles stunned by ischemia-reperfusion.
Pyruvate (Pyr) was proposed as an additive to cold high-K(+)-low-Ca(2+) cardioplegia (CPG) to protect the heart during surgery. We explored whether Pyr and CPG would work synergistically to protect rat hearts from stunning during ischemia-reperfusion (I/R). We measured the heat release and contractility of perfused ven...
2,326,836
Estimating the Myocardium's Angle of Three-Dimensional Trajectory, Using the Tracking of Sequential Two-Dimensional Echocardiography Images.
In this study, the angle of the myocardium's trajectory in three dimensions (&#x444;) was estimated by simultaneous use of long-axis and short-axis views of left ventricle septum two-dimensional images. Then correlation of three-dimensional trajectory's angle with the rotation angle from the long (&#x3c7;) and short (&...
2,326,837
An MRI study of age-related changes in the dimensions related temporal lobe.
The aim of this study was to determine the effect age-related changes on the MRI-based parameters related to several measurement of temporal lobe in the lifespan of adult persons. MRI scans of head (n=236) were reviewed retrospectively to identify abnormalities of temporal lobe, third ventricle, and temporal horn of la...
2,326,838
Algebraic reconstruction technique for parallel imaging reconstruction of undersampled radial data: application to cardiac cine.
To investigate algebraic reconstruction technique (ART) for parallel imaging reconstruction of radial data, applied to accelerated cardiac cine.</AbstractText>A graphics processing unit (GPU)-accelerated ART reconstruction was implemented and applied to simulations, point spread functions and in 12 subjects imaged with...
2,326,839
Structural variation and interactions among astrocytes of the rostral migratory stream and olfactory bulb of the adult rabbit. I. Light microscopic study.
The organization of the adult rabbit rostral migratory stream (RMS) was studied utilizing the rapid-Golgi technique and aniline stains. The RMS consists of a bi-layered, concentric structure bounding the olfactory ventricle. The inner hypercellular layer contains numerous small- to medium-sized cells and is encased by ...
2,326,840
Reconstruction of semiautomated cardiac regions of interest using iodine-123 metaiodobenzylguanidine myocardial scintigraphy.
Analysis using cardiac iodine-123 metaiodobenzylguanidine (MIBG) scintigraphy with regions of interest (ROIs) is useful for assessing myocardial sympathetic activity. However, manual placement of the cardiac ROI is sometimes difficult because myocardial MIBG uptake is reduced in patients with heart failure. A new metho...
2,326,841
An unusual manifestation of Cardiac Sarcoidosis.
Non tropical, non hypereosinophilic endo myocardial fibrosis has been reported in literature and is a rare entity.&#xa0; Cardiac Sarcoidosis manifesting as non-tropical, non hypereosinophilic endomyocardial fibrosis is unknown, though it classically affects the left ventricle and is not associated with specific risk fa...
2,326,842
Benign external hydrocephalus in infants. A single centre experience and literature review.
External hydrocephalus (EH) is a benign clinical entity in which macrocephaly is associated with an increase in volume of the subarachnoid space, especially overlying both frontal lobes, and a normal or only slight increase in volume of the lateral ventricles. Several pathogenic hypotheses have been proposed but the mo...
2,326,843
A chronic intracerebral fluid hematoma.
Intracerebral hematoma usually resolves and a chronic fluid hematoma is rare. We describe a rare case of intracerebral fluid hematoma. This report describes a case of intracerebral fluid hematoma mimicking a brain tumor and discusses the characteristics of this condition. A 70-year-old woman had a six-month history of ...
2,326,844
Arachnoid cyst of the cavum velum interpositum in a septuagenarian: radiological features and differential diagnosis.
The cavum velum interpositum (CVI) is a thin, triangular-shaped cerebrospinal fluid (CSF)-filled space between the lateral ventricles that lies below the fornices and above the third ventricle. It is a normal variant seen in premature and newborn infants and usually disappears with brain maturation. CVI is rarely seen ...
2,326,845
Traumatic brain injury-induced ependymal ciliary loss decreases cerebral spinal fluid flow.
Traumatic brain injury (TBI) afflicts up to 2 million people annually in the United States and is the primary cause of death and disability in young adults and children. Previous TBI studies have focused predominantly on the morphological, biochemical, and functional alterations of gray matter structures, such as the h...
2,326,846
Epidermal growth factor treatment of the adult brain subventricular zone leads to focal microglia/macrophage accumulation and angiogenesis.
One of the major components of the subventricular zone (SVZ) neurogenic niche is the specialized vasculature. The SVZ vasculature is&#xa0;thought to be important in regulating progenitor cell proliferation and migration. Epidermal growth factor (EGF) is a mitogen with&#xa0;a wide range of effects. When stem and progeni...
2,326,847
Ventricular and lumbar cerebrospinal fluid concentrations of Alzheimer's disease biomarkers in patients with normal pressure hydrocephalus and posttraumatic hydrocephalus.
Little information is available on the rostro-caudal concentration gradient of Alzheimer's disease (AD) biomarkers.</AbstractText>We studied the concentrations of amyloid-&#x3b2; (A&#x3b2;) peptides 1-42 and 1-40 as well as the Tau and pTau proteins in simultaneously collected ventricular and lumbar cerebrospinal fluid...
2,326,848
Ionic channels underlying the ventricular action potential in zebrafish embryo.<Pagination><StartPage>26</StartPage><EndPage>31</EndPage><MedlinePgn>26-31</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.phrs.2014.03.011</ELocationID><ELocationID EIdType="pii" ValidYN="Y">S1043-6618(14)00043-7<...
Over the last years zebrafish has become a popular model in the study of cardiac physiology, pathology and pharmacology. Recently, the application of the 3Rs regulation and the characteristics of the embryo have reduced the use of adult zebrafish use in many studies. However, the zebrafish embryo cardiac physiology is ...
2,326,849
Alzheimer's and ABC transporters--new opportunities for diagnostics and treatment.
Much has been said about the increasing number of demented patients and the main risk factor 'age'. Frustratingly, we do not know the precise pattern and all modulating factors that provoke the pathologic changes in the brains of affected elderly. We have to diagnose early to be able to stop the progression of diseases...
2,326,850
Endoscopic resection of incidental colloid cysts.
Incidental colloid cysts are frequently managed with surveillance imaging rather than surgical excision. This approach is born out of their purported indolent growth pattern and the surgical morbidity associated with microsurgical removal. The advent of endoscopic colloid cyst removal may offer renewed assessment of th...
2,326,851
Scale and pattern of atrophy in the chronic stages of moderate-severe TBI.
Moderate-severe traumatic brain injury (TBI) is increasingly being understood as a progressive disorder, with growing evidence of reduced brain volume and white matter (WM) integrity as well as lesion expansion in the chronic phases of injury. The scale of these losses has yet to be investigated, and pattern of change ...
2,326,852
An EP4 antagonist ONO-AE3-208 suppresses cell invasion, migration, and metastasis of prostate cancer.
EP4 is one of the prostaglandin E2 receptors, which is the most common prostanoid and is associated with inflammatory disease and cancer. We previously reported that over-expression of EP4 was one of the mechanisms responsible for progression to castration-resistant prostate cancer, and an EP4 antagonist ONO-AE3-208 in...
2,326,853
Hypothalamic subependymal niche: a novel site of the adult neurogenesis.
The discovery of undifferentiated, actively proliferating neural stem cells (NSCs) in the mature brain opened a brand new chapter in the contemporary neuroscience. Adult neurogenesis appears to occur in specific brain regions (including hypothalamus) throughout vertebrates' life, being considered an important player in...
2,326,854
Direct reprogramming of cardiac fibroblasts to cardiomyocytes using microRNAs.
The therapeutic administration of microRNAs represents an innovative reprogramming strategy with which to advance cardiac regeneration and personalized medicine. Recently, a distinct set of microRNAs was found capable of converting murine fibroblasts to cardiomyocyte-like cells in vitro. Further treatment with JAK inhi...
2,326,855
[Cis-diamminedichloroplatinum penetration into the cerebrospinal fluid of the lateral ventricle, postoperative cavity, and lumbar subarachnoid space with or without pre-intravenous mannitol administration in patients with brain metastasis from lung cancer].<Pagination><StartPage>317</StartPage><EndPage>324</EndPage><Me...
We have previously reported that repeated intravenous administration of cis-diamminedichloroplatinum(CDDP)prevented local recurrence of metastatic brain tumors after surgical total excision; however, data on CDDP distribution in the postoperative cavity after intravenous CDDP administration are not available. In the pr...
2,326,856
Robo1 modulates proliferation and neurogenesis in the developing neocortex.
The elaborate cytoarchitecture of the mammalian neocortex requires the timely production of its constituent pyramidal neurons and interneurons and their disposition in appropriate layers. Numerous chemotropic factors present in the forebrain throughout cortical development play important roles in the orchestration of t...
2,326,857
Occipital bending in depression.
There are reports of differences in occipital lobe asymmetry within psychiatric populations when compared with healthy control subjects. Anecdotal evidence and enlarged lateral ventricles suggests that there may also be a different pattern of curvature whereby one occipital lobe wraps around the other, termed 'occipita...
2,326,858
Active removal of inorganic phosphate from cerebrospinal fluid by the choroid plexus.
The P(i) concentration of mammalian cerebrospinal fluid (CSF) is about one-half that of plasma, a phenomenon also shown here in the spiny dogfish, Squalus acanthias. The objective of the present study was to characterize the possible role of the choroid plexus (CP) in determining CSF P(i) concentration. The large sheet...
2,326,859
Efficacy of a low dose of estrogen on antioxidant defenses and heart rate variability.
This study tested whether a low dose (40% less than the pharmacological dose of 17-&#x3b2; estradiol) would be as effective as the pharmacological dose to improve cardiovascular parameters and decrease cardiac oxidative stress. Female Wistar rats (n = 9/group) were divided in three groups: (1) ovariectomized (Ovx), (2)...
2,326,860
Functional assessment of the mouse heart by MRI with a 1-min acquisition.
In vivo assessment of heart function in mice is important for basic and translational research in cardiology. MRI is an accurate tool for the investigation of the anatomy and function in the preclinical setting; however, the long scan duration limits its usage. We aimed to reduce the acquisition time of cine MRI to 1 m...
2,326,861
Comparison of human septal nuclei MRI measurements using automated segmentation and a new manual protocol based on histology.
Septal nuclei, located in basal forebrain, are strongly connected with hippocampi and important in learning and memory, but have received limited research attention in human MRI studies. While probabilistic maps for estimating septal volume on MRI are now available, they have not been independently validated against ma...
2,326,862
Prenatal betamethasone does not affect glutamatergic or GABAergic neurogenesis in preterm newborns.
Prenatal glucocorticoids (GCs) are routinely used for pregnant women in preterm labor to prevent respiratory distress syndrome and intraventricular hemorrhage in premature infants. However, the effect of antenatal GCs on neurogenesis in preterm neonates remains elusive. Herein, we hypothesized that prenatal GCs might s...
2,326,863
Dosimetric advantages of a "butterfly" technique for intensity-modulated radiation therapy for young female patients with mediastinal Hodgkin's lymphoma.
High cure rates for Hodgkin's lymphoma must be balanced with long-term treatment-related toxicity. Here we report an intensity-modulated radiation therapy (IMRT) technique that achieves adequate target coverage for mediastinal disease while minimizing high- and low-dose exposure of critical organs.</AbstractText>Treatm...
2,326,864
The role of the habenula in drug addiction.
Interest in the habenula has greatly increased in recent years. The habenula is a small brain structure located posterior to the thalamus and adjacent to the third ventricle. Despite its small size, the habenula can be divided into medial habenula (MHb) and lateral habenula (LHb) nuclei that are anatomically and transc...
2,326,865
Catalytic immunoglobulin gene delivery in a mouse model of Alzheimer's disease: prophylactic and therapeutic applications.
Accumulation of amyloid beta-peptide (A&#x3b2;) in the brain is hypothesized to be a causal event leading to dementia in Alzheimer's disease (AD). A&#x3b2; vaccination removes A&#x3b2; deposits from the brain. A&#x3b2; immunotherapy, however, may cause T cell- and/or Fc-receptor-mediated brain inflammation and relocate...
2,326,866
Ventricular B1 (+) perturbation at 7 T - real effect or measurement artifact?
The objective of this work was to explore the origin of local B1 (+) perturbations in the ventricles measured at 7 T. The B1 (+) field in the human brain was mapped using four different MRI techniques: dual refocusing echo acquisition mode (DREAM), actual flip-angle imaging (AFI), saturated double-angle method (SDAM) a...
2,326,867
Assembly of the cardiac intercalated disk during pre- and postnatal development of the human heart.
In cardiac muscle, the intercalated disk (ID) at the longitudinal cell-edges of cardiomyocytes provides as a macromolecular infrastructure that integrates mechanical and electrical coupling within the heart. Pathophysiological disturbance in composition of this complex is well known to trigger cardiac arrhythmias and p...
2,326,868
Trib3 is developmentally and nutritionally regulated in the brain but is dispensable for spatial memory, fear conditioning and sensing of amino acid-imbalanced diet.
Tribbles homolog 3 (TRIB3) is a mammalian pseudokinase that is induced in neuronal cell cultures in response to cell death-inducing stresses, including neurotrophic factor deprivation. TRIB3 is an inhibitor of activating transcription factor 4 (ATF4), the central transcriptional regulator in the eukaryotic translation ...
2,326,869
Nerve growth factor in the adult brain of a teleostean model for aging research: Nothobranchius furzeri.
Nerve growth factor (NGF) acts on central nervous system neurons, regulating naturally occurring cell death, synaptic connectivity, fiber guidance and dendritic morphology. The dynamically regulated production of NGF beginning in development, extends throughout adult life and aging, exerting numerous roles through a su...
2,326,870
Hydrocephalus after resection and adjuvant radiochemotherapy in patients with glioblastoma.
Glioblastomas are the most common primary malignant brain tumors in adults with a poor prognosis. The current study sought to identify risk factors in glioblastoma patients that are closely associated with communicating hydrocephalus.</AbstractText>We retrospectively analyzed data from 151 patients who were diagnosed w...
2,326,871
Evaluation of brain iron content in idiopathic REM sleep behavior disorder using quantitative magnetic resonance imaging.
Neuroimaging studies in patients with idiopathic rapid eye movement sleep behavior disorder (iRBD) show similar structural and functional changes to alpha-synucleinopathies, including PD. Until now, there have been few attempts to characterize brain iron deposition in iRBD. The aim of this study was to investigate brai...
2,326,872
[Treatment of multiple or recurrent intracranial tumors with local chemotherapy by hypodermic Ommaya reservoir].
To explore the treatment of multiple or recurrent intracranial tumors by hypodermic placement of Ommaya reservoir and local chemotherapy with methotrexate.</AbstractText>Retrospective analyses were performed on the clinical data of 45 cases with multiple or recurrent intracranial tumors at Friendship Affiliated Hospita...
2,326,873
Ontogeny of inter-alpha inhibitor proteins in ovine brain and somatic tissues.
Inter-alpha inhibitor proteins (IAIPs) found in relatively high concentrations in human plasma are important in inflammation. IAIPs attenuate brain damage in young and adult subjects, decrease during sepsis and necrotizing enterocolitis in premature infants, and attenuate sepsis-related inflammation in newborn rats. Al...
2,326,874
[Asymptomatic left ventricular myxoma incidentally diagnosed by echocardiography. Report of one case].
We report a 50 year-old hypertensive and asymptomatic woman in whom a left ventricular tumor was found on a routine two-dimensional transthoracic echocardiogram. Complementary 3D echocardiography, cardiac magnetic resonance and cardiac computed tomography allowed the diagnosis of a calcified left ventricular myxoma. Su...
2,326,875
Ependymoblastoma with cystic change in a child.
Ependymoblastoma is a rare and devastating primitive neuroectodermal tumor with ependymal differentiation. This tumor occurs very early in life and shows rapid growth and a diffuse infiltration through the leptomeningeal space. This neoplasm is characterized by uniform neuroepithelial cells, multilayered ependymal rose...
2,326,876
Results of a North American survey of rapid-sequence MRI utilization to evaluate cerebral ventricles in children.
Growing concern about potential adverse effects of ionizing radiation exposure during imaging studies is particularly relevant to the pediatric population. To decrease radiation exposure, many institutions use rapid-sequence (or quick-brain) MRI to evaluate cerebral ventricle size. There are obstacles, however, to wide...
2,326,877
A complete system for automatic extraction of left ventricular myocardium from CT images using shape segmentation and contour evolution.
The left ventricular myocardium plays a key role in the entire circulation system and an automatic delineation of the myocardium is a prerequisite for most of the subsequent functional analysis. In this paper, we present a complete system for an automatic segmentation of the left ventricular myocardium from cardiac com...
2,326,878
Inhibition of cell proliferation in black-capped chickadees suggests a role for neurogenesis in spatial learning.
Following development, the avian brain continues to produce neurons throughout adulthood, which functionally integrate throughout the telencephalon, including the hippocampus. In food-storing birds like the black-capped chickadee (Poecile atricapillus), new neurons incorporated into the hippocampus are hypothesized to ...
2,326,879
Cardiac Fas-dependent and mitochondria-dependent apoptosis after chronic cocaine abuse.
To evaluate whether chronic cocaine abuse will increase cardiac Fas-dependent and mitochondria-dependent apoptotic pathways, thirty-two male Wistar rats at 3-4 months of age were randomly divided into a vehicle-treated group (phosphate-buffered saline, PBS, 0.5 mL, SQ per day) and a cocaine-treated group (Cocaine, 10 m...
2,326,880
ZFP580, a novel zinc-finger transcription factor, is involved in cardioprotection of intermittent high-altitude hypoxia against myocardial ischemia-reperfusion injury.
ZFP580 is a novel C2H2 type zinc-finger transcription factor recently identified by our laboratory. We previously showed that ZFP580 may be involved in cell survival and growth. The aim of this study was to elucidate whether ZFP580 is involved in the cardioprotective effects of intermittent high-altitude (IHA) hypoxia ...
2,326,881
Effect of pravastatin on total kidney volume, left ventricular mass index, and microalbuminuria in pediatric autosomal dominant polycystic kidney disease.
In autosomal dominant polycystic kidney disease (ADPKD), progressive kidney cyst formation commonly leads to ESRD. Because important manifestations of ADPKD may be evident in childhood, early intervention may have the largest effect on long-term outcome. Statins are known to slow progressive nephropathy in animal model...
2,326,882
Systemic blockage of nitric oxide synthase by L-NAME increases left ventricular systolic pressure, which is not augmented further by Intralipid&#xae;.
Intravenous lipid emulsions (LEs) are effective in the treatment of toxicity associated with various drugs such as local anesthetics and other lipid soluble agents. The goals of this study were to examine the effect of LE on left ventricular hemodynamic variables and systemic blood pressure in an in vivo rat model, and...
2,326,883
Sphenoidal intracranial chondrosarcoma.
A 40-year-old male presented with headache, complete loss of vision in the right eye and decreased vision of the left eye. On examination, fundoscopy revealed secondary optic atrophy in the right eye and pale temporal disc in the left eye. MRI brain revealed a soft tissue mass arising from sphenoid sinus, eroding the o...
2,326,884
Annexin A6 modifies muscular dystrophy by mediating sarcolemmal repair.
Many monogenic disorders, including the muscular dystrophies, display phenotypic variability despite the same disease-causing mutation. To identify genetic modifiers of muscular dystrophy and its associated cardiomyopathy, we used quantitative trait locus mapping and whole genome sequencing in a mouse model. This appro...
2,326,885
Immunohistochemical analysis of Pax6 and Pax7 expression in the CNS of adult Xenopus laevis.
Pax6 and Pax7 are transcription factors essential for the development of the CNS. In addition, increasing data, mainly obtained in amniotes, support that they are expressed in subsets of neurons in the adult, likely playing a role in maintaining neuron type identity. In the present study we analyzed the detailed distri...
2,326,886
Heterogeneous micromechanical properties of the extracellular matrix in healthy and infarcted hearts.
Infarcted hearts are macroscopically stiffer than healthy organs. Nevertheless, although cell behavior is mediated by the physical features of the cell niche, the intrinsic micromechanical properties of healthy and infarcted heart extracellular matrix (ECM) remain poorly characterized. Using atomic force microscopy, we...
2,326,887
Nonalcoholic Wernicke's Encephalopathy Associated with Unintentional Weight Loss, Cholecystectomy, and Intractable Vomiting: The Role of Dual Thiamine and Corticosteroid Therapy.
A 23-year-old male with one month of intractable vomiting, subsequent cholecystitis status post cholecystectomy, and overall 40-pound weight loss over the last few months presented with altered mental status and seizures. MRI showed signal abnormalities involving the hypothalamus, periaqueductal gray matter, 4th ventri...
2,326,888
MTA index: a simple 2D-method for assessing atrophy of the medial temporal lobe using clinically available neuroimaging.
Despite a strong correlation to severity of AD pathology, the measurement of medial temporal lobe atrophy (MTA) is not being widely used in daily clinical practice as a criterion in the diagnosis of prodromal and probable AD. This is mainly because the methods available to date are sophisticated and difficult to implem...
2,326,889
Cystatin C has a dual role in post-traumatic brain injury recovery.
Cathepsin B is one of the major lysosomal cysteine proteases involved in neuronal protein catabolism. This cathepsin is released after traumatic injury and increases neuronal death; however, release of cystatin C, a cathepsin inhibitor, appears to be a self-protective brain response. Here we describe the effect of cyst...
2,326,890
Treatment of cephalocranial disproportion in shunt-induced slit ventricle syndrome with cranial vault distraction osteogenesis.
Slit ventricle syndrome (SVS) is a known late complication of shunting procedures. Some patients develop cephalocranial disproportion (CCD) that will require surgical treatment to increase craniocerebral compliance.</AbstractText>We performed cranial vault distraction osteogenesis to treat 2 teenage patients who presen...
2,326,891
Differences in age-related effects on brain volume in Down syndrome as compared to Williams syndrome and typical development.
Individuals with Down Syndrome (DS) are reported to experience early onset of brain aging. However, it is not well understood how pre-existing neurodevelopmental effects versus neurodegenerative processes might be contributing to the observed pattern of brain atrophy in younger adults with DS. The aims of the current s...
2,326,892
Oral findings and dental treatment in a patient with Dandy-Walker syndrome: a case report.
Dandy-Walker syndrome (DWS) is congenital disease characterized by hypoplasia of the cerebellum, the formation of cysts that communicate with the fourth ventricle of the posterior cranial fossa, and hydrocephalus. In addition to various other complications, cleft lip/palate, facial retrognathia, a high-arched palate, a...
2,326,893
Statistical personalization of ventricular fiber orientation using shape predictors.
This paper presents a predictive framework for the statistical personalization of ventricular fibers. To this end, the relationship between subject-specific geometry of the left (LV) and right ventricles (RV) and fiber orientation is learned statistically from a training sample of ex vivo diffusion tensor imaging datas...
2,326,894
RNA-sequencing analysis reveals new alterations in cardiomyocyte cytoskeletal genes in patients with heart failure.
Changes in cardiomyocyte cytoskeletal components, a crucial scaffold of cellular structure, have been found in heart failure (HF); however, the altered cytoskeletal network remains to be elucidated. This study investigated a new map of cytoskeleton-linked alterations that further explain the cardiomyocyte morphology an...
2,326,895
RBANS memory indices are related to medial temporal lobe volumetrics in healthy older adults and those with mild cognitive impairment.
The current study (i) determined whether NeuroQuant(&#xae;) volumetrics are reflective of differences in medial temporal lobe (MTL) volumes between healthy older adults and those with mild cognitive impairment (MCI) and (ii) examined the relationship between RBANS indices and MTL volumes. Forty-three healthy older adul...
2,326,896
Defective motile cilia in Prickle2-deficient mice.
Motile cilia play diverse roles across phyla and cell types, and abnormalities in motile cilia lead to numerous disease states, including hydrocephalus. Although motile ciliary abnormalities in Prickle2 mutants have not yet been described, the planar cell polarity genes, including Prickle2, are implicated in the develo...
2,326,897
The criterion value of fetal cerebral lateral ventricular atrium width for diagnosis of ventriculomegaly.
To determine the distribution of cerebral lateral ventricular atrium width (LVAW) as established according to gestational weeks, and calculate the criterion value of LVAW that differentiates normal fetuses from abnormal fetuses.</AbstractText>A total of 832 patients meeting the study's criteria were included in the con...
2,326,898
Reversal of cognitive dysfunction by total removal of a large lateral ventricle meningioma: a case report with neuropsychological assessments.
Although cognitive impairment is one of the major symptoms of ventricular tumors, few studies have reported the details of cognitive impairment before and after their surgical removal. The expected effects on cognitive function should also be considered when choosing a surgical approach. We report the case of a large l...
2,326,899
'Trapped temporal horn' of lateral ventricle in tuberculous meningitis.
A young girl presented with a 1-month history of constitutional symptoms, headache and vomiting and 7-day history of left hemiparesis. Neuroimaging showed the 'trapped temporal horn' sign, suggestive of focal obstructive hydrocephalus at the foramen of Monro. Analysis of the cerebrospinal fluid and other investigations...