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2,328,600
Effect of Central Injection of Neostigmine on the Bacterial Endotoxin Induced Suppression of GnRH/LH Secretion in Ewes during the Follicular Phase of the Estrous Cycle.
Induced by a bacterial infection, an immune/inflammatory challenge is a potent negative regulator of the reproduction process in females. The reduction of the synthesis of pro-inflammatory cytokine is considered as an effective strategy in the treatment of inflammatory induced neuroendocrine disorders. Therefore, the e...
2,328,601
Folate Receptor α-Modified Nanoparticles for Targeting of the Central Nervous System.
Effective and timely delivery of therapeutic agents from the systemic circulation to the central nervous system (CNS) is often precluded by the blood-brain barrier (BBB) and the blood-cerebrospinal fluid barrier (BCSFB). A new pathway of folate uptake mediated by folate receptor alpha (FRα, molecular weight of 28...
2,328,602
[Penetrative needling improves neurological function by up-regulating expression of autophagy related protein LC3 in rats with hemorrhagic stroke].
To observe the effect of penetrative needling from "Baihui" (GV20) to "Qubin" (GB7) on neurological function and expression of autophagy related protein microtubule-associated protein, light chain 3 (LC3) in rats with hemorrhagic stroke, so as to explore its mechanism underlying improvement of hemorrhagic stroke.</Abst...
2,328,603
Fatal Postpartum Hemorrhage in Diffuse Midline Glioma with H3-K27M Mutation.
Management of pregnant women with brain tumors necessitates difficult decision-making especially for estimating or preventing its intratumoral hemorrhage. A 26-year-old, 19-week pregnant woman complaining of headache and vomiting was admitted to our hospital. Magnetic resonance imaging (MRI) revealed hydrocephalus and ...
2,328,604
NRXN1 is associated with enlargement of the temporal horns of the lateral ventricles in psychosis.
Schizophrenia, Schizoaffective, and Bipolar disorders share behavioral and phenomenological traits, intermediate phenotypes, and some associated genetic loci with pleiotropic effects. Volumetric abnormalities in brain structures are among the intermediate phenotypes consistently reported associated with these disorders...
2,328,605
Left Interhemispheric Craniotomy for Resection of Cavernous Malformation: 2-Dimensional Operative Video.
Thalamic cavernous malformations pose variable surgical challenges given that the location and size of the lesion often determine the approach surgical trajectory. The patient in this case has a large thalamic cavernous malformation that results in a mass effect on the third ventricle and directly abuts the lateral ven...
2,328,606
Endoscopic resection of the third ventricular epidermoid cysts: A case review and review of literature.
Epidermoid cysts are benign, congenital lesions that originate from ectodermal cells, they are most commonly found in the cerebellopontine angle, but rarely in the ventricular system. There is limited literature regarding the different microsurgical techniques utilized to approach these lesions.</AbstractText>A 63-year...
2,328,607
Minimizing cortical disturbance to access ventricular subependymoma - A novel approach utilizing spinal minimally invasive tubular retractor system.
Subependymomas are rare benign tumors found primarily in the lateral and fourth ventricles. Patients become symptomatic when the tumor obstructs cerebrospinal fluid pathways. We present a novel minimally invasive technique for lateral ventricular subependymoma resection.</AbstractText>A 57-year-old male presented after...
2,328,608
Extraventricular neurocytoma with ganglioid differentiation of the sellar and parasellar regions in an elderly patient: A case report.
Extraventricular neurocytoma (EVN) is a rare variant of central neurocytoma which arises outside of the ventricular system. Diffuse ganglioid differentiation is a characteristic seen in a subset of these tumors which has an uncertain prognostic significance. Typically, EVN presents in children and young adults. Given t...
2,328,609
Third ventricle World Health Organization Grade II meningioma presenting with intraventricular hemorrhage and obstructive hydrocephalus: A case report and literature review.
Third ventricular meningiomas are exceedingly rare intracranial tumors that may present with intraventricular hemorrhage.</AbstractText>The patient is 46-year-old who initially presented with obstructive hydrocephalus from a presumed vascular lesion and who was treated with endoscopic third ventriculostomy. He presente...
2,328,610
The cerebellar peduncle as localization of a recurrent atypical plexus papilloma: A case report.
Choroid plexus papillomas (CPPs) are infrequently encountered brain tumors with the majority originating in the ventricular system. Rarely, CPP occurs outside of the ventricles.</AbstractText>We report the case of a recurrent CPP that initially originated within the fourth ventricle, though years later it recurred in t...
2,328,611
Neuronal precursor cells with dopaminergic commitment in the rostral migratory stream of the mouse.
Neuroblasts born in the subventricular zone of adult mammals migrate via the rostral migratory stream into the granular cell layer or periglomerular layer of the olfactory bulb to differentiate into interneurons. To analyze if new neurons in the granular cell layer or periglomerular layer have different origins, we ins...
2,328,612
Effects of a single bout of exercise on mitochondria-mediated apoptotic signaling in rat cardiac and skeletal muscles.
This study aimed to determine the effects of a single bout exercise on mitochondria-mediated apoptotic signaling in cardiac and skeletal muscles. Fischer 344 rats (4 months old) were randomly divided into the control or a single bout of exercise group (n=10 each). The rats performed a single bout of treadmill exercise ...
2,328,613
Thalamus Cavernous Malformation Resection of via Contralateral Anterior Interhemispheric Transcallosal Approach: Two-Dimensional Operative Video.
Thalamic cavernous malformations (CM) are highly challenging surgically. In this illustrative video (Video 1), we present the case of a 36-year-old man with a CM at the left medial thalamus, which was successfully treated by a contralateral anterior interhemispheric transcallosal approach. Informed consent was obtained...
2,328,614
An Alternative Route to the Posterior Half of the Third Ventricle: The Transoccipital Horn Approach. Technical Note.
Lesions arising or abutting in the posterior half of the third ventricle are approached through established routes to avoid damage of essential brain structures. Occasionally, the features of the lesion require rethinking these traditional routes and tailoring the surgical approach to cause fewer debilitating sequelae ...
2,328,615
Laser Interstitial Thermal Therapy to the Posterior Fossa: Challenges and Nuances.
Posterior fossa tumors are rare in adults and pose a challenge to treat due to the bony contour of the posterior fossa, complex anatomical structures including deep venous sinuses, and the proximity of the fourth ventricle and brain stem. We describe our experience with laser interstitial thermal therapy (LITT) for the...
2,328,616
Temporary bronchial stenting for airway compression in the interstage palliation of functional single ventricle.
The Norwood procedure is the first of three palliative surgical procedures offered for hypoplastic left heart syndrome (HLHS). Due to the small size of the thorax and proximity of airway and vascular structures, compression of the airway is possible following the Norwood procedure. We describe the management of an infa...
2,328,617
Virtual three-dimensional model for preoperative planning in a complex case of a double outlet right ventricle.
A 3-year-old child with a complex variant of double outlet right ventricle achieved a successful biventricular repair after detailed delineation of the intracardiac anatomy on multimodality imaging. A virtual three-dimensional (3D) model based on computed tomography was used successfully in the absence of an actual 3D-...
2,328,618
Intracranial lymphatic drainage discharges iron from the ventricles and reduce the occurrence of chronic hydrocephalus after intraventricular hemorrhage in rats.
<b>Background:</b> The discovery of intracranial lymphatic system provides a new theory about cerebrospinal fluid circulation. In order to investigate the role of lymphatic drainage in hydrocephalus after intraventricular hemorrhage (IVH), three parts of experiments were performed.<b>Methods:</b> IVH model was produced...
2,328,619
Restitution and Stability of Human Ventricular Action Potential at High and Variable Pacing Rate.
Despite the key role of beat-to-beat action potential (AP) variability in the onset of ventricular arrhythmias at high pacing rate, the knowledge of the involved dynamics and of effective prognostic parameters is largely incomplete. Electrical restitution (ER), the way AP duration (APD) senses changes in preceding cycl...
2,328,620
Deficiency of Mitochondrial Aspartate-Glutamate Carrier 1 Leads to Oligodendrocyte Precursor Cell Proliferation Defects Both In Vitro and In Vivo.
Aspartate-Glutamate Carrier 1 (AGC1) deficiency is a rare neurological disease caused by mutations in the solute carrier family 25, member 12 (<i>SLC25A12</i>) gene, encoding for the mitochondrial aspartate-glutamate carrier isoform 1 (AGC1), a component of the malate-aspartate NADH shuttle (MAS), expressed in excitabl...
2,328,621
High-Frame-Rate Tri-Plane Echocardiography With Spiral Arrays: From Simulation to Real-Time Implementation.
Major cardiovascular diseases (CVDs) are associated with (regional) dysfunction of the left ventricle. Despite the 3-D nature of the heart and its dynamics, the assessment of myocardial function is still largely based on 2-D ultrasound imaging, thereby making diagnosis heavily susceptible to the operator's expertise. U...
2,328,622
Fourth Ventricle Enlargement in Chiari Malformation Type I.
How Chiari malformation type I (CM-I) affects posterior fossa brain structures and produces various symptoms remains unclear. The fourth ventricle is surrounded by critical structures required for normal function. The foramen of Magendie can be obstructed in CM-I; therefore, fourth ventricle changes may occur. To test ...
2,328,623
[Quantitative study on the development of fetal ventricles and cisterna magna in second and third trimesters with MRI].
<b>Objective:</b> To analyze the changes of growth and development of normal fetal ventricles and cisterna magna with gestational age(GA) and the correlation with fetal gender in the second and third trimester,and establish the MR prenatal diagnosis reference standards. <b>Methods:</b> A total of 633 fetuses (mean GA (...
2,328,624
Sensitivity Analysis of a Left Ventricle Model in the Context of Intraventricular Dyssynchrony.
The objective of the current study was to propose a sensitivity analysis of a 3D left ventricle model in order to assess the influence of parameters on myocardial mechanical dispersion. A finite element model of LV electro-mechanical activity was proposed and a screening method was used to evaluate the sensitivity of m...
2,328,625
Dynamics of centriole amplification in centrosome-depleted brain multiciliated progenitors.
Reproductive and respiratory organs, along with brain ventricles, are lined by multiciliated epithelial cells (MCC) that generate cilia-powered fluid flows. MCC hijack the centrosome duplication pathway to form hundreds of centrioles and nucleate motile cilia. In these cells, the large majority of procentrioles are for...
2,328,626
Hydrocephalus with Ventricular Papillary Structure Induced by Aggressive Intracranial Dural Arteriovenous Fistulas.
A 76-year-old man presented with progressive dementia, gait disturbance, and urinary incontinence for 1 year. Computed tomography scan revealed nonobstructive hydrocephalus, but abnormal papillary structures at the ventricular wall were noted. Before cerebrospinal fluid (CSF) diversion surgery for hydrocephalus, we per...
2,328,627
hGFAP-Positive Stem Cells Depend on Brg1 for Proper Formation of Cerebral and Cerebellar Structures.
Brahma-related gene 1 (Brg1) is one of the two mutually exclusive catalytic subunits of the SWItch/sucrose nonfermentable (SWI/SNF) chromatin remodeling complex. Several roles of Brg1 have been described including acting as a tumor suppressor but also functioning in neural stem cell (NSC) maintenance, neural crest deve...
2,328,628
CGRP derived from cardiac fibroblasts is an endogenous suppressor of cardiac fibrosis.
Aberrant activation of cardiac fibroblasts leads to cardiac fibrosis, and evolving evidences suggest that endogenous bioactive substances derived from cardiac fibroblasts regulate cardiac fibroblasts activation in an autocrine/paracrine manner. Here we first presented evidence that cardiac fibroblasts can synthesize an...
2,328,629
Temperature-Responsive Polymersomes of Poly(3-methyl-<i>N</i>-vinylcaprolactam)-<i>block</i>-poly(<i>N</i>-vinylpyrrolidone) To Decrease Doxorubicin-Induced Cardiotoxicity.
Despite being one of the most potent chemotherapeutics, doxorubicin (DOX) facilitates cardiac toxicity by irreversibly damaging the cardiac muscle as well as severely dysregulating the immune system and impairing the resolution of cardiac inflammation. Herein, we report synthesis and aqueous self-assembly of nanosized ...
2,328,630
The association between 24-h blood pressure patterns and left ventricular mechanics.
We sought to investigate left ventricular (LV) mechanics in the recently diagnosed hypertensive patients with different 24-h blood pressure (BP) patterns (dipping, nondipping, extreme dipping and reverse dipping).</AbstractText>The current cross-sectional study included 209 hypertensive patients who underwent 24-h ambu...
2,328,631
Natural History of Ventriculomegaly in Fetal Agenesis of the Corpus Callosum.
To assess the natural evolution of the size of the fetal lateral ventricles throughout pregnancy in fetuses with callosal anomalies.</AbstractText>Cases of fetal callosal anomalies were retrospectively classified as isolated or complex based on the presence of other structural or genetic anomalies. Longitudinal ultraso...
2,328,632
Long-range fibre damage in small vessel brain disease affects aphasia severity.
We sought to determine the underlying pathophysiology relating white matter hyperintensities to chronic aphasia severity. We hypothesized that: (i) white matter hyperintensities are associated with damage to fibres of any length, but to a higher percentage of long-range compared to mid- and short-range intracerebral wh...
2,328,633
Air gun wound: bihemispheric penetrating brain injury in a paediatric patient.
Air guns are classified as low-velocity missiles and they usually considered safe and harmless. Despite that fact, air guns still can make serious or life-threatening injuries. Most of air gun injuries occur in paediatric population. A 2-year-old boy was shot in the forehead withan air gun accidentally. Skull radiograp...
2,328,634
Association of Cavum Septum Pellucidum and Cavum Vergae With Cognition, Mood, and Brain Volumes in Professional Fighters.
Many studies have investigated the imaging findings showing sequelae of repetitive head trauma, with mixed results.</AbstractText>To determine whether fighters (boxers and mixed martial arts fighters) with cavum septum pellucidum (CSP) and cavum vergae (CV) have reduced volumes in various brain structures or worse clin...
2,328,635
The comparison of the impact of arterial stiffness and central pressure on left ventricular geometry and diastolic function.
This study was performed to compare the associations of brachial-ankle pulse wave velocity (baPWV) and central blood pressure (CBP) measurements with left ventricular (LV) geometry and diastolic function.</AbstractText>A total of 77 subjects (64.5&#x2009;&#xb1;&#x2009;10.8&#x2009;years, 67.5% females) without documente...
2,328,636
A descriptive report of the selenium distribution in tissues from pigs with mulberry heart disease (MHD).
Mulberry Heart Disease (MHD) is a condition affecting mainly young pigs in excellent body condition. Feed efficient pigs showing high average daily gains are more likely to be affected. MHD has been described as a challenge in Norwegian pig production over the last decade despite abundant supplies of vitamin E, and sel...
2,328,637
Central Neurocytoma Presenting with Bleed and Obstructive Hydrocephalus: A Rare Presentation.
Central neurocytomas (CNs) occur typically in the lateral ventricle, adjacent to the septum pellucidum and foramen of Monro. The clinical presentation varies and many are incidentally detected. Incidence of spontaneous hemorrhage at presentation is rare. We hereby report a case of the intraventricular lesion with bleed...
2,328,638
Endoscopic resection of an intraventricular cavernoma: a case report.
Cerebral cavernous malformations occur in 0.5% of the population. They consist of thin-walled vessels and can be found as congenital or sporadic lesions. Most of them are asymptomatic, however, due to their anatomical features blood leakage into the surrounding tissue can cause severe neurological symptoms. Although ri...
2,328,639
Psychotic experiences in childhood are associated with increased structural integrity of the left arcuate fasciculus - A population-based case-control study.
Around 1 in 5 children under 13&#x202f;years old experience sub-clinical psychotic experiences (PEs) like hallucinations and delusions. While PEs in childhood are a significant risk factor for adult psychotic disorders, the majority of those experiencing childhood PEs do not develop a psychotic disorder. Individual dif...
2,328,640
Delayed clearance of cerebrospinal fluid tracer from choroid plexus in idiopathic normal pressure hydrocephalus.
Impaired clearance of amyloid-&#x3b2; from choroid plexus is one proposed mechanism behind amyloid deposition in Alzheimer's disease. The present study examined whether clearance from choroid plexus of a cerebrospinal fluid tracer, serving as a surrogate marker of a metabolic waste product, is altered in idiopathic nor...
2,328,641
Temporal Horn Choroid Plexus Papilloma Presenting with Seizures in Adulthood: Clinical Case Report and Review of the Literature.
Choroid plexus papillomas (CPPs) are benign World Health Organization grade I tumors that comprise 2%-4% of all brain tumors among children and less than 1% of brain tumors in adults. Most adult cases occur in the fourth ventricle, with only 1 previous report describing an adult patient with a temporal horn CPP.</Abstr...
2,328,642
Functions of subventricular zone neural precursor cells in stroke recovery.
The proliferation and ectopic migration of neural precursor cells (NPCs) in response to ischemic brain injury was first reported two decades ago. Since then, studies of brain injury-induced subventricular zone cytogenesis, primarily in rodent models, have provided insight into the cellular and molecular determinants of...
2,328,643
A good choice for the patients with prior failed ventriculoperitoneal shunt treatment of suprasellar arachnoid cysts: endoscopic fenestration.
To investigate the effectiveness of endoscopic fenestration in the patients with prior failed ventriculoperitoneal (VP) shunt treatment of suprasellar arachnoid cysts (SACs). Between 2012 and 2018, four pediatric patients of SACs with previous failed VP shunt treatment were surgically treated using endoscopic ventricul...
2,328,644
Refractory epilepsy associated with ventriculoperitoneal shunt over-drainage: case report.
Epilepsy and intracranial pressure (ICP) can be interrelated. While shunt malfunction is recognized as a cause of seizures, shunt over-drainage is seldom reported as such. We report a child who had undergone ventriculoperitoneal shunt insertion at the age of 6&#xa0;months following an excision of a left ventricle choro...
2,328,645
Aortic erosion occurring in over 5&#x2009;years after Amplatzer septal Occluder implantation for secundum atrial septal defect: a case report.<Pagination><StartPage>159</StartPage><MedlinePgn>159</MedlinePgn></Pagination><ELocationID EIdType="pii" ValidYN="Y">159</ELocationID><ELocationID EIdType="doi" ValidYN="Y">10.1...
Aortic erosion is a serious complication that usually occurs shortly after Amplazter Septal Occluder (ASO) implantation for atrial septal defect (ASD).</AbstractText>A seven-year-old girl was diagnosed with secundum ASD without symptoms. Transesophageal echocardiography (TEE) showed a defect of 20&#x2009;mm in diameter...
2,328,646
Geranylgeraniol prevents statin-induced skeletal muscle fatigue without causing adverse effects in cardiac or vascular smooth muscle performance.
The administration of geranylgeranyl pyrophosphate (GGPP) (or its precursor, geranylgeraniol [GGOH]) has been shown by several in vitro studies to be capable of abrogating statin-induced myotoxicity. Nonetheless, the potential of GGPP repletion to prevent statin-associated muscle symptoms (SAMS) in vivo is yet to be in...
2,328,647
Gender Differences in Characteristics and Outcome in Primary Intraventricular Hemorrhage.
Primary intraventricular hemorrhage (PIVH) is a rare type of Intracerebral Hemorrhage (ICH), which is poorly understood. This study aimed to investigate gender differences in patients' characteristics, management and outcome at discharge and 90 days after PIVH.</AbstractText>Consecutive patients with PIVH from a single...
2,328,648
The Internal Cerebral Vein: New Classification of Branching Patterns Based on CTA.
The internal cerebral vein begins at the foramen of Monro by the union of the thalamostriate and the anterior septal veins. The lateral direct vein is its other major tributary. Numerous researchers have reported differences in internal cerebral vein branching patterns but did not classify them. Hence, the objectives o...
2,328,649
Heterogeneity of Neural Stem Cells in the&#xa0;Ventricular-Subventricular Zone.
In this chapter, heterogeneity is explored in the context of the ventricular-subventricular zone, the largest stem cell niche in the mammalian brain. This niche generates up to 10,000 new neurons daily in adult mice and extends over a large spatial area with dorso-ventral and medio-lateral subdivisions. The stem cells ...
2,328,650
Isolated, Subtle Neurological Abnormalities in Mild Cognitive Impairment Types.
Des anomalies neurologiques subtiles et isol&#xe9;es associ&#xe9;es &#xe0; diff&#xe9;rents types de d&#xe9;ficience cognitive l&#xe9;g&#xe8;re. Contexte: Des anomalies neurologiques &#xe0; la fois subtiles et isol&#xe9;es sont fr&#xe9;quemment observ&#xe9;es chez les personnes vieillissantes. Elles ont &#xe9;t&#xe9; as...
2,328,651
RBM3 promotes neurogenesis in a niche-dependent manner via IMP2-IGF2 signaling pathway after hypoxic-ischemic brain injury.
Hypoxic ischemia (HI) is an acute brain threat across all age groups. Therapeutic hypothermia ameliorates resulting injury in neonates but its side effects prevent routine use in adults. Hypothermia up-regulates a small protein subset that includes RNA-binding motif protein 3 (RBM3), which is neuroprotective under stre...
2,328,652
Subcortical heterotopic gray matter brain malformations: Classification study of 107 individuals.
To better evaluate the imaging spectrum of subcortical heterotopic gray matter brain malformations (subcortical heterotopia [SUBH]), we systematically reviewed neuroimaging and clinical data of 107 affected individuals.</AbstractText>SUBH is defined as heterotopic gray matter, located within the white matter between th...
2,328,653
[Hematoma Expansion within 24 hours of Hypertensive Intracerebral Hemorrhage and Its Association with Signs on Nonenhanced Computed Tomography].
To explore the correlation between hematoma expansion within 24 hours of hypertensive intracerebral hemorrhage and signs on nonenhanced computed tomography(NECT). Methods The clinical data and CT images of 185 patients with hypertensive intracerebral hemorrhage were retrospectively analyzed.The differences in CT parame...
2,328,654
Identification and Characterization of a Transcribed Distal Enhancer Involved in Cardiac Kcnh2 Regulation.
The human ether-a-go-go-related gene KCNH2 encodes the voltage-gated potassium channel underlying I<sub>Kr</sub>, a current critical for the repolarization phase of the cardiac action potential. Mutations in KCNH2 that cause a reduction of the repolarizing current can result in cardiac arrhythmias associated with long-...
2,328,655
Impact of the cerebrospinal fluid-mask algorithm on the diagnostic performance of <sup>123</sup>I-Ioflupane SPECT: an investigation of parkinsonian syndromes.
A cerebrospinal fluid (CSF)-mask algorithm has been developed to reduce the adverse influence of CSF-low-counts on the diagnostic utility of the specific binding ratio (SBR) index calculated with Southampton method. We assessed the effect of the CSF-mask algorithm on the diagnostic performance of the SBR index for park...
2,328,656
Imaging of cerebrospinal fluid flow: fundamentals, techniques, and clinical applications of phase-contrast magnetic resonance imaging.
Cerebrospinal fluid (CSF) is a dynamic compartment of the brain, constantly circulating through the ventricles and subarachnoid space. In recent years knowledge about CSF has expended due to numerous applications of phase-contrast magnetic resonance imaging (PC-MRI) in CSF flow evaluation, leading to the revision of fo...
2,328,657
Clinical Implementation of Targeted Gene Sequencing for Malformation of Cortical Development.
Malformations of cortical development comprise phenotypically heterogeneous conditions, and the diagnostic value of genetic testing in blood still remains to be elucidated. We used targeted gene sequencing to identify malformations of cortical development caused by germline mutations and characteristics associated with...
2,328,658
Positive Outcome of Endoscopic Third Ventriculostomy in Fourth Ventricular Outlet Obstruction.
We report a case of headache due to a hydrocephalus with associated syringomyelia. Magnetic resonance imaging showed a fourth ventricular outlet obstruction. An endoscopic third ventriculostomy (ETV) was performed with successful clinical and radiologic outcome. Fourth ventricular outlet obstruction is an uncommon caus...
2,328,659
First Intracranial Pressure Monitoring or First Operation: Which One Is Better?
For patients with TBI, traditional methods such as clinical examination and imaging data are the primary references used for deciding whether to operate or not. Intracranial pressure (ICP) monitoring based on lateral ventricles or parenchymal pressure is a more direct reflection of ICP. However, the research on whether...
2,328,660
Transthyretin expression in the postischemic brain.
The unknown role of the carrier protein transthyretin (TTR) in mechanisms of functional recovery in the postischemic brain prompted us to study its expression following experimental stroke. Male C57/B6 mice (age 9 to 10 weeks) were subjected to permanent focal ischemia induced by photothrombosis (PT) and brain tissues ...
2,328,661
[The Efficacy of the Emergent Shunt-Clamp System for Secondary Hydrocephalus Associated with Fourth Ventricle Outlet Obstruction Syndrome:A Report of Two Cases].
Endoscopic third ventriculostomy(ETV)is the first-line treatment for fourth ventricle outlet obstruction(FVOO)-associated hydrocephalus. However, because FVOO is difficult to diagnose in the acute stage, ventriculoperitoneal shunt(VPS)is also used. Herein, we report two cases of shunted FVOO resulting in overdrainage o...
2,328,662
[A Case of Dural Arteriovenous Fistula Involving the Superior Sagittal Sinus that Presented as a Primary Intraventricular Hemorrhage].
We report an extremely rare case of dural arteriovenous fistula(DAVF)involving the superior sagittal sinus(SSS)that presented as a primary intraventricular hemorrhage(PIVH). A 79-year-old man who presented with disturbance of consciousness and vomiting was transferred to our hospital. The initial head CT revealed an in...
2,328,663
A data augmentation approach to train fully convolutional networks for left ventricle segmentation.
Left ventricle (LV) segmentation plays an important role in the diagnosis of cardiovascular diseases. The cardiac contractile function can be quantified by measuring the segmentation results of LVs. Fully convolutional networks (FCNs) have been proven to be able to segment images. However, a large number of annotated i...
2,328,664
Inverse localization of earliest cardiac activation sites from activation maps based on the viscous Eikonal equation.
In this study we propose a novel method for identifying the locations of earliest activation in the human left ventricle from activation maps measured at the epicardial surface. Electrical activation is modeled based on the viscous Eikonal equation. The sites of earliest activation are identified by solving a minimizat...
2,328,665
Symptomatic cysts of the cavum septi pellucidi, cavum vergae and cavum veli interpositi: A retrospective duocentric study of 10 patients.
Cysts of the Cavum septi pellucidi (CSP), cavum vergae (CV) and cavum veli interpositi (CVI) are anterior midline intracranial findings which are typically incidental - only rarely do we encounter symptomatic cysts of this type. Only a quite small number of these cysts series have been published, controversies regardin...
2,328,666
The hippocampal-to-ventricle ratio (HVR): Presentation of a manual segmentation protocol and preliminary evidence.
Disentangling age-related changes from developmental variations in hippocampal volume has proven challenging. This article presents a manual segmentation protocol for the hippocampal-to-ventricle ratio (HVR), a measure combining the assessment of hippocampal volume with surrounding ventricular volume. By providing in a...
2,328,667
Apelin-36-[L28A] and Apelin-36-[L28C(30kDa-PEG)] peptides that improve diet induced obesity are G protein biased ligands at the apelin receptor.
Apelin signalling pathways have important cardiovascular and metabolic functions. Recently, apelin-36-[L28A] and apelin-36-[L28C(30kDa-PEG)], were reported to function independent of the apelin receptor in vivo to produce beneficial metabolic effects without modulating blood pressure. We aimed to show that these peptid...
2,328,668
BK channels regulate calcium oscillations in ventricular myocytes on different substrate stiffness.
Substrate stiffness is essential for cell functions, but the mechanisms by which cell sense mechanical cues are still unclear. Here we show that the frequency and the amplitude of spontaneous Ca<sup>2+</sup> oscillations were greater in chick cardiomyocytes cultured on the stiff substrates than that on the soft substra...
2,328,669
Intraventricular meningiomas frequently harbor NF2 mutations but lack common genetic alterations in TRAF7, AKT1, SMO, KLF4, PIK3CA, and TERT.
Intraventricular meningiomas (IVMs) account for less than 5% of all intracranial meningiomas; hence their molecular phenotype remains unknown. In this study, we were interested whether genetic alterations in IVMs differ from meningiomas in other locations and analyzed our institutional series with respect to clinical a...
2,328,670
Surgical Management of Iatrogenic Left Ventricle Perforation by Chest Tube Insertion.
Chest tube thoracostomy is a standard procedure in every intensive care unit. Although it is regarded as a safe procedure in experienced hands, rare complications do occur. This report describes iatrogenic perforation of the left ventricle after placement of an intercostal catheter and the successful surgical managemen...
2,328,671
Tanycytic TSPO inhibition induces lipophagy to regulate lipid metabolism and improve energy balance.
Hypothalamic glial cells named tanycytes, which line the 3rd</sup> ventricle (3V), are components of the hypothalamic network that regulates a diverse array of metabolic functions for energy homeostasis. Herein, we report that TSPO (translocator protein), an outer mitochondrial protein, is highly enriched in tanycytes ...
2,328,672
Does ventricular volume affect the neurodevelopmental outcome in infants with intraventricular hemorrhage?
The aim of this study is to investigate whether ventricular volume in posthemorrhagic ventricle dilatation impacts neurodevelopmental outcome. Infants were scanned with 3D cranial ultrasound in the first few months of life, and their neurodevelopmental outcome at 4, 8, 12, and 24&#xa0;months corrected age (CA) was exam...
2,328,673
A Deep Learning Segmentation Approach in Free-Breathing Real-Time Cardiac Magnetic Resonance Imaging.
The purpose of this study was to segment the left ventricle (LV) blood pool, LV myocardium, and right ventricle (RV) blood pool of end-diastole and end-systole frames in free-breathing cardiac magnetic resonance (CMR) imaging. Automatic and accurate segmentation of cardiac structures could reduce the postprocessing tim...
2,328,674
Fate of nanoparticles in the central nervous system after intrathecal injection in healthy mice.
Cerebrospinal fluid (CSF) is produced in the cerebral ventricles and circulates within the subarachnoid space (SAS) of the brain and spinal cord, where it exchanges with interstitial fluid of the parenchyma. The access of CSF to the entire central nervous system (CNS) makes it an attractive medium for drug delivery. Ho...
2,328,675
Subretinal and Retrolaminar Migration of Intraocular Silicone Oil Detected on CT.
Intraocular silicone oil injection has been used to treat complicated retinal detachments, and recently its retrolaminar and intracranial migration has been reported. The purpose of this study was to document the prevalence of posterior migration of intraocular silicone oil on head CT and describe the clinical and radi...
2,328,676
Global and Regional Changes in Cortical Development Assessed by MRI in Fetuses with Isolated Nonsevere Ventriculomegaly Correlate with Neonatal Neurobehavior.
Fetuses with isolated nonsevere ventriculomegaly (INSVM) are at risk of presenting neurodevelopmental delay. However, the currently used clinical parameters are insufficient to select cases with high risk and determine whether subtle changes in brain development are present and might be a risk factor. The aim of this s...
2,328,677
Continuous intrathecal injection therapy of methotrexate is a therapeutic option in primary CNS lymphoma.
Primary central nervous system lymphoma (PCNSL) is a rare subtype of non-Hodgkin's lymphoma, and its prognosis is still very poor despite the conventional therapy of high-dose methotrexate (HD-MTX) followed by whole-brain radiation therapy (WBRT). The purpose of the present study was to evaluate the survival benefit of...
2,328,678
Central leukotrienes modulate fever tolerance to LPS in rats.
Leukotrienes mediate several inflammatory events such as neutrophil chemoattraction, leukocyte adhesion, and central-release of cytokines and fever. However, there is no information available about their putative role in lipopolysaccharide (LPS) tolerance. The rational of the present study was to find out if central le...
2,328,679
Dynamic pixel-wise weighting-based fully convolutional neural networks for left ventricle segmentation in short-axis MRI.
Left ventricle (LV) segmentation in cardiac MRI is an essential procedure for quantitative diagnosis of various cardiovascular diseases. In this paper, we present a novel fully automatic left ventricle segmentation approach based on convolutional neural networks. The proposed network fully takes advantages of the hiera...
2,328,680
Kaolin-induced hydrocephalus causes acetylcholinesterase activity dysfunction following hypothalamic damage in infant rats.
In hydrocephalus, the progressive accumulation of cerebrospinal fluid (CSF) causes dilatation of the lateral ventricles affecting the third ventricle and diencephalic structures such as the hypothalamus. These structures play a key role in the regulation of several neurovegetative functions by the production of the hor...
2,328,681
Feasibility study of using one-tenth mSv radiation dose in young children chest CT with 80 kVp and model-based iterative reconstruction.
CT has become a routine imaging modality based on its excellent ability of displaying lung structures and diseases. But, how to reduce radiation dose of routine CT examination is a concern for radiologists. Our study aimed to evaluate the feasibility of using 80kVp and a model-based iterative reconstruction (MBIR) algo...
2,328,682
Hierarchical Template Matching for 3D Myocardial Tracking and Cardiac Strain Estimation.
Myocardial tracking and strain estimation can non-invasively assess cardiac functioning using subject-specific MRI. As the left-ventricle does not have a uniform shape and functioning from base to apex, the development of 3D MRI has provided opportunities for simultaneous 3D tracking, and 3D strain estimation. We have ...
2,328,683
Ascl1 Balances Neuronal versus Ependymal Fate in the Spinal Cord Central Canal.
Generation of neuronal types at the right time, location, and number is essential for building a functional nervous system. Significant progress has been reached in understanding the mechanisms that govern neuronal diversity. Cerebrospinal fluid-contacting&#xa0;neurons (CSF-cNs), an intriguing spinal cord central canal...
2,328,684
Subcostal TAPSE: a retrospective analysis of a novel right ventricle function assessment method from the subcostal position in patients with sepsis.
Tricuspid annular plane systolic excursion (TAPSE) is frequently used as an objective measure of right-ventricular dysfunction. Abnormal TAPSE values are associated with poor prognosis in a number of disease states; however, the measure is not always easy to obtain in the critically ill. The purpose of this study is to...
2,328,685
Solitary intraventricular Hodgkin lymphoma post-transplant lymphoproliferative disease (HL-PTLD): Case report.
Lymphomas affecting the central nervous system (CNS), both primarily and secondarily, are uncommon malignancies. Immunosuppressed states, including iatrogenic immunosuppression following organ transplantation, are the most significant risk factors for developing primary CNS lymphoma (PCNSL). Post-transplant lymphoproli...
2,328,686
Percutaneous retrieval of an embolized gunshot bullet from right ventricle: a case report and review of literature.
Gunshots embolizing to the heart is a rare occurrence. We report a case of percutaneous retrieval of a gunshot bullet from the right ventricle (RV) cavity of a 40-year-old lady. To the best of our knowledge, this is the first case to be reported with a right supraclavicular inlet of the bullet and successful percutaneo...
2,328,687
Evaluation of the global longitudinal strain and segmental strain of the right ventricle with two-dimensional speckle-tracking echocardiography with elevation of the legs.
Speckle-tracking echocardiography has shown its usefulness in the evaluation of the right ventricle (RV) in healthy subjects and in pulmonary hypertension. It is unknown whether this technique could be sensitive to assess healthy RV with increases in preload.</AbstractText>Consecutive subjects were studied without evid...
2,328,688
Aldosterone Jeopardizes Myocardial Insulin and &#x3b2;-Adrenergic Receptor Signaling <i>via</i> G Protein-Coupled Receptor Kinase 2.
Hyperaldosteronism alters cardiac function, inducing adverse left ventricle (LV) remodeling either <i>via</i> increased fibrosis deposition, mitochondrial dysfunction, or both. These harmful effects are due, at least in part, to the activation of the G protein-coupled receptor kinase 2 (GRK2). In this context, we have ...
2,328,689
Partial Loss of USP9X Function Leads to a Male Neurodevelopmental and Behavioral Disorder Converging on Transforming Growth Factor &#x3b2; Signaling.
The X-chromosome gene USP9X encodes a deubiquitylating enzyme that has been associated with neurodevelopmental disorders primarily in female subjects. USP9X escapes X inactivation, and in female subjects de novo heterozygous copy number loss or truncating mutations cause haploinsufficiency culminating in a recognizable...
2,328,690
The Association Between Familial Risk and Brain Abnormalities Is Disease Specific: An ENIGMA-Relatives Study of Schizophrenia and Bipolar Disorder.
Schizophrenia and bipolar disorder share genetic liability, and some structural brain abnormalities are common to both conditions. First-degree relatives of patients with schizophrenia (FDRs-SZ) show similar brain abnormalities to patients, albeit with smaller effect sizes. Imaging findings in first-degree relatives of...
2,328,691
Disseminated Rosette-Forming Glioneuronal Tumor with Spinal Drop Metastasis, a Uniquely Aggressive Presentation of Rare Tumor.
The rosette-forming glioneuronal tumor (RGNT) is a rare World Health Organization grade I tumor, most often originating in the fourth ventricle and characterized by a predominant glial component, as well as a neurocytic component. Despite its benign grading, there are a few documented cases of RGNT displaying more aggr...
2,328,692
Developmental Retrocerebellar Cysts: A New Classification for Neuroendoscopic Management and Systematic Review.
Posterior fossa cystic malformations are diversely classified with considerable overlap without therapeutic relevance. These cysts posterior to the cerebellum, presenting in children younger than 5 years, are labeled developmental retrocerebellar cysts (DRCCs) under a new classification in relation to neuroendoscopy.</...
2,328,693
Pineal region metastasis with intraventricular seeding: A case report and literature review.
Tumors of the pineal region are rare, and metastatic carcinoma occurring in the pineal region is extremely rare. No previous reports have described pineal region metastasis with intraventricular seeding.</AbstractText>We report a case of a 51-year-old woman presented with a 1-week history of severe headache, nausea, an...
2,328,694
[Protective effects of microRNA-181b on aged rats with sepsis-induced hippocampus injury in vivo].
To investigate the protective effect of microRNA-181b (miR-181b) on aged rats with sepsis-induced hippocampus injury in vivo.</AbstractText>Seventy-five male healthy old Sprague-Dawley (SD) rats were randomly divided into five groups (n = 15) using a random number table: sham operation group (Sham group), sepsis group ...
2,328,695
Diurnal, Seasonal, and Monthly Variations&#xa0;in Ventricular Arrhythmias in&#xa0;Patients With Implantable Cardioverter-Defibrillators.
The aim of this study was to assess the variations in ventricular arrhythmia (VA) occurrence according to seasons, months of the year, days of the week, and the time of day in a large implantable cardioverter-defibrillator patient population.</AbstractText>Limited data exist on how VA occurrence varies as a function of...
2,328,696
First trimester supratentorial and infratentorial abnormalities in fetuses with open spina bifida.
To examine whether supratentorial, infratentorial, and calvarial manifestations of open spina bifida (OSB) occur in the first-trimester.</AbstractText>Supratentorial (midbrain curvature, thalamic height), infratentorial (fourth ventricle diameter, brain-stem diameter [BSD], ratio of BSD to BSD-occipital bone diameter [...
2,328,697
Ocular Dyskinesia and Hemifacial Spasm Secondary to Fourth Ventricular Tumor: Report of 4 Cases and Review of the Literature.
In clinical pediatric neurosurgery practice, fourth ventricle and cerebellar tumors are not rare. However, reports of secondary refractory hemifacial spasm are very rare. No report is currently available on the treatment of hemifacial spasm secondary to fourth ventricle and cerebellar tumors in China. Zamponi et al. [C...
2,328,698
A case of recurrent epilepsy-associated rosette-forming glioneuronal tumor with anaplastic transformation in the absence of therapy.
Rosette-forming glioneuronal tumor (RGNT) most commonly occurs adjacent to the fourth ventricle and therefore rarely presents with epilepsy. Recent reports describe RGNT occurrence in other anatomical locations with considerable morphologic and genetic overlap with the epilepsy-associated dysembryoplastic neuroepitheli...
2,328,699
EGFR Signaling Termination via Numb Trafficking in Ependymal Progenitors Controls Postnatal Neurogenic Niche Differentiation.
Specialized microenvironments, called niches, control adult stem cell proliferation and differentiation. The brain lateral ventricular (LV) neurogenic niche is generated from distinct postnatal radial glial progenitors (pRGPs), giving rise to adult neural stem cells (NSCs) and niche ependymal cells (ECs). Cellular-intr...