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2,330,500
Study of the glial cytoarchitecture of the developing olfactory bulb of a shark using immunochemical markers of radial glia.
During development of the olfactory bulb (OB), glial cells play key roles in axonal guiding/targeting, glomerular formation and synaptic plasticity. Studies in mammals have shown that radial glial cells and peripheral olfactory glia (olfactory ensheathing cells, OECs) are involved in the development of the OB. Most stu...
2,330,501
Identifying gene expression profiles associated with neurogenesis and inflammation in the human subependymal zone from development through aging.
The generation of new neurons within the mammalian forebrain continues throughout life within two main neurogenic niches, the subgranular zone (SGZ) of the hippocampal dentate gyrus, and the subependymal zone (SEZ) lining the lateral ventricles. Though the SEZ is the largest neurogenic niche in the adult human forebrai...
2,330,502
Cap analysis of gene expression reveals alternative promoter usage in a rat model of hypertension.
The role of alternative promoter usage in tissue-specific gene expression has been well established; however, its role in complex diseases is poorly understood. We performed cap analysis of gene expression (CAGE) sequencing from the left ventricle of a rat model of hypertension, the spontaneously hypertensive rat (SHR)...
2,330,503
Acute critical thermal maximum does not predict chronic incremental thermal maximum in Atlantic salmon (Salmo salar).
Atlantic salmon is an important aquaculture species farmed in ocean net-pens and therefore subjected to changing environmental conditions, including rising temperatures. This creates a need for research on the thermal tolerance of this species for the future of sustainable aquaculture. We investigated the thermal toler...
2,330,504
Feasibility of awake endoscopic third ventriculostomy in selected patients of obstructive hydrocephalus.
Endoscopic third ventriculostomy (ETV) is usually performed under general anesthesia (GA) with proper head immobilization. However a few patients with hydrocephalus (HCP) may not be suitable for GA. Once the surgeon is familiar with endoscopic ventricular anatomy and gains adequate surgical experience with the procedur...
2,330,505
Cerebellar mutism syndrome in pediatric head trauma with cerebellar injury.
Cerebellar mutism syndrome (CMS) after cerebellar injury in pediatric head trauma is a poorly recognized condition that is not properly diagnosed or treated in our daily practice. We aimed to clinically identify this syndrome after isolated posttraumatic cerebellar injury and to propose pathophysiological explanation.<...
2,330,506
Quantitative analysis of late iodine enhancement using dual-layer spectral detector computed tomography: comparison with magnetic resonance imaging.
To evaluate the segmental myocardial extracellular volume (ECV) fraction and to define a threshold ECV value that can be used to distinguish positive late gadolinium enhancement (LGE) segments from negative myocardial segments using dual-layer spectral detector computed tomography (SDCT), with magnetic resonance imagin...
2,330,507
Diagnostic accuracy of qualitative MRI in 550 paediatric brain tumours: evaluating current practice in the computational era.
To investigate the accuracy of qualitative reporting of conventional magnetic resonance imaging (MRI) in the classification of paediatric brain tumours.</AbstractText>Preoperative MRI reports of 608 children prior to resection or biopsy of an intracranial lesion were retrospectively reviewed. A total of 550 children ha...
2,330,508
Fourth ventricle neurocysticercosis presenting with Bruns' syndrome: A case report.
Neurocysticercosis (NCC) is the most common helminthic infection of the central nervous system. We present a case of the fourth ventricle NCC that presented with Bruns' syndrome (with headaches worsened by head movements, gait ataxia, and vomiting) and the operative technique used for cyst removal.</AbstractText>A 39-y...
2,330,509
Multifocal spinal glioblastoma and leptomeningeal carcinomatosis in an elderly male with hydrocephalus and myelopathy.
Primary spinal glioblastoma multiforme with multifocal leptomeningeal enhancement is rarely diagnosed or documented. We describe a rare case of multifocal spinal isocitrate dehydrogenase (IDH) wild type glioblastoma with leptomeningeal carcinomatosis in an elderly male presenting with a chronic subdural hematoma, progr...
2,330,510
A bi-foraminal craniometric-guided approach to endoscopic third ventriculostomy and biopsy of a pineal tumour.
Pineal tumors are very rarely encountered, with an incidence of &lt;1% of intracranial lesions in adults. Life-threatening hydrocephalus due to obstruction of the third ventricle can result from the location of these tumours. Endoscopic third ventriculostomy (ETV) and tumor biopsy is a safe and feasible strategy, parti...
2,330,511
Iron Rims in Patients With Multiple Sclerosis as Neurodegenerative Marker? A 7-Tesla Magnetic Resonance Study.
<b>Introduction:</b> Multiple sclerosis (MS) is a demyelinating and neurodegenerative disease of the central nervous system, characterized by inflammatory-driven demyelination. Symptoms in MS manifest as both physical and neuropsychological deficits. With time, inflammation is accompanied by neurodegeneration, indicate...
2,330,512
Pediatric heart-lung transplantation: Technique and special considerations.
Heart-lung transplantation has historically been used as a definitive treatment for children with end-stage cardiopulmonary failure, although the number performed has steadily decreased over time. In this review, we discuss current indications, preoperative risk factors, outcomes, and heart-lung transplantation in uniq...
2,330,513
Facilitating drug delivery in the central nervous system by opening the blood-cerebrospinal fluid barrier with a single low energy shockwave pulse.<Pagination><StartPage>3</StartPage><MedlinePgn>3</MedlinePgn></Pagination><ELocationID EIdType="pii" ValidYN="Y">3</ELocationID><ELocationID EIdType="doi" ValidYN="Y">10.11...
The blood-cerebrospinal fluid (CSF) barrier (BCSFB) is critically important to the pathophysiology of the central nervous system (CNS). However, this barrier prevents the safe transmission of beneficial drugs from the blood to the CSF and thus the spinal cord and brain, limiting their effectiveness in treating a variet...
2,330,514
Brain ventricles as windows into brain development and disease.
Dilation of the fluid-filled cerebral ventricles (ventriculomegaly) characterizes hydrocephalus and is frequently seen in autism and schizophrenia. Recent work suggests that the genomic study of congenital hydrocephalus may be unexpectedly fertile ground for revealing insights into neural stem cell regulation, human ce...
2,330,515
Effect of dose, dosing intervals, and hypoxic stress on the reversal of pulmonary hypertension by mesenchymal stem cell extracellular vesicles.
Mesenchymal stem cell extracellular vesicles (MSC EVs) reverse pulmonary hypertension, but little information is available regarding what dose is effective and how often it needs to be given. This study examined the effects of dose reduction and use of longer dosing intervals and the effect of hypoxic stress of MSC pri...
2,330,516
Manganese Dynamics in Mouse Brain After Systemic MnCl<sub>2</sub> Administration for Activation-Induced Manganese-Enhanced MRI.
Activation-induced manganese-enhanced MRI (AIM-MRI) is an attractive tool for non-invasively mapping whole brain activities. Manganese ions (Mn<sup>2+</sup>) enter and accumulate in active neurons via calcium channels. Mn<sup>2+</sup> shortens the longitudinal relaxation time (T1) of H<sup>+</sup>, and the longitudinal...
2,330,517
Widespread choroid plexus contamination in sampling and profiling of brain tissue.
The choroid plexus, a tissue responsible for producing cerebrospinal fluid, is found predominantly in the lateral and fourth ventricles of the brain. This highly vascularized and ciliated tissue is made up of specialized epithelial cells and capillary networks surrounded by connective tissue. Given the complex structur...
2,330,518
Diphtheria toxin induced but not CSF1R inhibitor mediated microglia ablation model leads to the loss of CSF/ventricular spaces in vivo that is independent of cytokine upregulation.
Two recently developed novel rodent models have been reported to ablate microglia, either by genetically targeting microglia (via Cx3cr1-creER: iDTR&#x2009;+&#x2009;Dtx) or through pharmacologically targeting the CSF1R receptor with its inhibitor (PLX5622). Both models have been widely used in recent years to define es...
2,330,519
Opioid Weaning Protocol Using Morphine Compared With Nonprotocolized Methadone Associated With Decreased Dose and Duration of Opioid After Norwood Procedure.
Opioids are used to manage pain, comfort, maintain devices, and decrease oxygen consumption around Norwood palliation (NP), but in high dose and prolonged exposure, they increase risk of tolerance and iatrogenic withdrawal syndrome (IAWS). Variability in practice for IAWS prevention potentially increases opioid dose an...
2,330,520
Cross-modality LGE-CMR Segmentation using Image-to-Image Translation based Data Augmentation.
Accurate segmentation of ventricle and myocardium from the late gadolinium enhancement (LGE) cardiac magnetic resonance (CMR) is an important tool for myocardial infarction (MI) analysis. However, the complex enhancement pattern of LGE-CMR and the lack of labeled samples make its automatic segmentation difficult to be ...
2,330,521
Apelin-13 protects against memory impairment and neuronal loss, Induced by Scopolamine in male rats.
The present study aimed to evaluate the effects of Apelin-13 on scopolamine-induced memory impairment in rats.&#xa0;Forty male rats were divided into five groups of eight. The control group received no intervention; the scopolamine group underwent stereotaxic surgery and received 3&#xa0;mg/kg intraperitoneal scopolamin...
2,330,522
Comparative Analysis of Behavioral Reactions and Morphological Changes in the Rat Brain After Exposure to Ionizing Radiation with Different Physical Characteristics.
The aim of this research was to study behavioral reactions and morphological changes in the brain of adult female Sprague Dawley rats after exposure to 170&#xa0;MeV and 70&#xa0;MeV protons and gamma radiation (60Co) at a dose of 1&#xa0;Gy. The analysis of the behavioral reactions in the T-maze showed that exposure to i...
2,330,523
Surgical management and clinical outcomes of cerebellar liponeurocytomas-a report of seven cases and a pooled analysis of individual patient data.
Cerebellar liponeurocytomas (CLPNs) are very rare, with very few studies on this disease. Their treatment protocol also remains unclear. To better understand the disease, we reviewed the clinical features and outcomes, and proposed a treatment protocol based on previously reported cases as well as cases from our instit...
2,330,524
Tectal Rosette-Forming Glioneuronal Tumor - A Case Report Focusing on a Possible Role for Radiotherapy in Inoperable Tumors.
Rosette-forming glioneuronal tumor (RGNT) is a rare and distinctive glioneuronal tumor. Although surgical excision is considered the standard treatment for these slow growing WHO Grade I tumors, gross-total resection is achieved in less than 50% of RGNTs due to its localisation amidst vital structures. With very few ca...
2,330,525
Neuroendoscopy in the Surgical Management of Lateral and Third Ventricular Tumors: Looking Beyond Microneurosurgery.
Intraventricular tumors pose a surgical challenge because of the difficulty in reaching their deep location through safe corridors and their adherence or proximity to vital neurovascular structures. Although microneurosurgery is the mainstay of surgical management, neuroendoscopy aided by adjuncts, namely, navigation a...
2,330,526
Gravity Assisted Retraction Less Occipito Transtentorial and Trans-Splenial Approach for Posterior Third Ventricular Dermoid.
A dermoid is an inclusion cyst. Its presence in the posterior third ventricle is highly infrequent. It usually compresses rather than infiltrates the posterior third ventricle's anatomical structures due to a well-defined capsule. Hence, the surgical anatomy in these tumors is less distorted. The approach to the poster...
2,330,527
Association between cumulative blood pressure in early adulthood and right ventricular structure and function in middle age: The CARDIA study.<Pagination><StartPage>83</StartPage><EndPage>90</EndPage><MedlinePgn>83-90</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1002/clc.23763</ELocationID><Abstra...
Percutaneous Transvenous Mitral Commissurotomy (PTMC) is the first line treatment for rheumatic mitral stenosis (MS). We sought to evaluate (1) changes in 2-dimensional (2D) echocardiographic and strain values and (2) differences in these values for patients in atrial fibrillation (AF) and sinus rhythm (SR) pre, immedi...
2,330,528
A case report of atypical choroid plexus papilloma in the cervicothoracic spinal cord.
Choroid plexus papillomas (CPPs) are uncommon, benign intracranial tumors that can occur in both children and adults. In adults, CPPs are typically identified in the fourth ventricle, whereas in children, they most commonly occur in the lateral ventricle. CPPs that arise from the extraventricular system are extremely r...
2,330,529
Monocytes promote acute neuroinflammation and become pathological microglia in neonatal hypoxic-ischemic brain injury.
<b>Rationale:</b> Monocytes belong to the mononuclear phagocyte system and are immune responders to tissue injury and infection. There were also reports of monocytes transforming to microglia-like cells. Here we explore the roles of monocytes in microglia ontogeny and the pathogenesis of neonatal cerebral hypoxic-ische...
2,330,530
Idiopathic normal pressure hydrocephalus; treatment and outcome in the Region of Southern Denmark.<Pagination><StartPage>107107</StartPage><MedlinePgn>107107</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.clineuro.2021.107107</ELocationID><ELocationID EIdType="pii" ValidYN="Y">S0303-8467(21)0...
A structural crisis is brewing in advanced care for patients with congenital heart disease (CHD)-specifically, single-ventricle patients palliated by the Fontan procedure. The largest study evaluating management practices in pediatric cardiac teams found that 93% of providers believe that after the Fontan procedure, pa...
2,330,531
Global Rostral Midbrain Syndrome (GRMS) and Corpus callosum infarction in the context of shunt overdrainage.
We report 3 cases of Global rostral midbrain syndrome (GRMS) and Corpus Callosum (CC) infarction, in the context of hydrocephalus followed by shunt dysfunction and slit ventricles. Prior shunt implantation had been indicated for adult-onset hydrocephalus secondary to aqueductal stenosis of varying causes. All three pat...
2,330,532
Risk factors for postoperative cerebellar mutism syndrome in pediatric patients: a systematic review and meta-analysis.
A review article assessing all the risk factors reported in the literature for postoperative cerebellar mutism syndrome (pCMS) among children remains absent. The authors sought to perform a systematic review and meta-analysis to evaluate this issue.</AbstractText>PubMed, Embase, and Web of Science were queried to syste...
2,330,533
Choroid plexus enlargement is associated with neuroinflammation and reduction of blood brain barrier permeability in depression.
Recent studies have shown that choroid plexuses (CP) may be involved in the neuro-immune axes, playing a role in the interaction between the central and peripheral inflammation. Here we aimed to investigate CP volume alterations in depression and their associations with inflammation.</AbstractText>51 depressed particip...
2,330,534
Prostaglandin analog effects on cerebrospinal fluid reabsorption via nasal mucosa.<Pagination><StartPage>e0248545</StartPage><MedlinePgn>e0248545</MedlinePgn></Pagination><ELocationID EIdType="pii" ValidYN="Y">e0248545</ELocationID><ELocationID EIdType="doi" ValidYN="Y">10.1371/journal.pone.0248545</ELocationID><Abstra...
Cardiovascular disease is the leading cause of mortality amongst patients with chronic kidney disease (CKD). This is the first study using 3-dimensional echocardiography (3DE) to investigate associations between adverse changes of the left ventricle, and different stages of CKD. Participants were recruited from the Cop...
2,330,535
Effective Study: Development and Application of a Question-Driven, Time-Effective Cardiac Magnetic Resonance Scanning Protocol.
Background Long scanning times impede cardiac magnetic resonance (CMR) clinical uptake. A "one-size-fits-all" shortened, focused protocol (eg, only function and late-gadolinium enhancement) reduces scanning time and costs, but provides less information. We developed 2 question-driven CMR and stress-CMR protocols, inclu...
2,330,536
Anatomy of the conduction tissues 100 years on: what have we learned?<Pagination><StartPage>1430</StartPage><EndPage>1437</EndPage><MedlinePgn>1430-1437</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1136/heartjnl-2021-320304</ELocationID><Abstract><AbstractText>Knowledge of the anatomy of the 'cond...
Knowledge of the anatomy of the 'conduction tissues' of the heart is a 20th century phenomenon. Although controversies still continue on the topic, most could have been avoided had greater attention been paid to the original descriptions. All cardiomyocytes, of course, have the capacity to conduct the cardiac impulse. ...
2,330,537
Modification of gene expression and soluble factor secretion in the lateral ventricle choroid plexus: Analysis of the impacts on the neocortical development.
The choroid plexus (ChP) is the center of soluble factor secretion into the cerebrospinal fluid in the central nervous system. It is known that various signaling factors secreted from the ChP are involved in the regulation of brain development and homeostasis. Intriguingly, the size of the ChP was prominently expanded ...
2,330,538
The morphologic analysis of a not well-known anatomical structure's calcifications (Bochdalek's flower basket calcifications).
The aim of the study was to define the morphology of calcifications belonging to a not very well-known anatomical structure (calcification of foramen of Luschka/Bochdalek's flower basket calcification [Boc FBC]).</AbstractText>Two hundred sixty-four computed tomography (CT) scans obtained from healthy patients were inc...
2,330,539
RELATIVE TELOMERE LENGTH OF PERIPHERAL BLOOD LYMPHOCYTES AND STRUCTURAL AND FUNCTIONAL STATE OF THE LEFT VENTRICLE MYOCARDIUM IN CLEAN-UP WORKERS OF THE CHORNOBYL ACCIDENT WHO SUFFERED FROM STENOTIC CORONARY ATHEROSCLEROSIS.<Pagination><StartPage>319</StartPage><EndPage>338</EndPage><MedlinePgn>319-338</MedlinePgn></Pa...
Meta doslidzhennia: provesty analiz vidnosno&#xef; dovzhyny telomer (VDT) limfotsytiv peryferychno&#xef; krovi v uchas-nykiv likvidatsi&#xef; naslidkiv avari&#xef; (ULNA) na Chornobyl's'ki&#x12d; AES (ChAES) zi stenozuiuchym aterosklerozom koro-narnykh arteri&#x12d; zalezhno vid strukturno-funktsional'nogo stanu miokar...
2,330,540
Agreement Between Automated and Manual MRI Volumetry in Alzheimer's Disease: A Systematic Review and Meta-Analysis.
Automated magnetic resonance imaging (MRI) volumetry is a promising tool to evaluate regional brain volumes in dementia and especially Alzheimer's disease (AD).</AbstractText>To compare automated methods and the gold standard manual segmentation in measuring regional brain volumes on MRI across healthy controls, patien...
2,330,541
Cryo-injury procedure-induced cardiac regeneration shows unique gene expression profiles in the newt Pleurodeles waltl.
Cardiac regeneration in the adult mouse is not substantial. Some vertebrates, such as newts and zebrafish, regenerate the heart throughout their lives. To understand how regenerative abilities differ among animal species, comparative research has been conducted in animals like mouse, zebrafish, and newt. For those purp...
2,330,542
Immunohistochemical expression of osteopontin and collagens in choroid plexus of human brains.
Evidence showing the functional significance of the choroid plexus is accumulating. Although it is clinically well-known that calcification is frequently seen in the choroid plexus of aged human brains, it is unclear why calcification occurs in the aged choroid plexus and what exert effects on the calcification has. In...
2,330,543
[Microscopic excision of a colloyd cyst of the third ventricle assisted by endoscopy. Case report and literature analysis.].
Colloid cysts are histologically benign lesions, probably derived from the endoderm, which represent 0.3-2% of brain tumors. They are usually attached to the roof of the third ventricle in direct relation to the foramen of Monro, which can cause a blockage to the circulation of cerebrospinal fluid, determining hydrocep...
2,330,544
Quantitative assessment of intra- and inter-modality deformable image registration of the heart, left ventricle, and thoracic aorta on longitudinal 4D-CT and MR images.
Magnetic resonance imaging (MRI)-based investigations into radiotherapy (RT)-induced cardiotoxicity require reliable registrations of magnetic resonance (MR) imaging to planning computed tomography (CT) for correlation to regional dose. In this study, the accuracy of intra- and inter-modality deformable image registrat...
2,330,545
Age-dependent cerebrospinal fluid-tissue water exchange detected by magnetization transfer indirect spin labeling MRI.
A non-invasive magnetization transfer indirect spin labeling (MISL) MRI method is developed to quantify the water exchange between cerebrospinal fluid (CSF) and other tissues in the brain and to examine the age-dependence of water exchange.</AbstractText>In the pulsed MISL, we implemented a short selective pulse follow...
2,330,546
Spermidine supplementation influences mitochondrial number and morphology in the heart of aged mice.
Aging is associated with cardiac hypertrophy and progressive decline in heart function. One of the hallmarks of cellular aging is the dysfunction of mitochondria. These organelles occupy around 1/4 to 1/3 of the cardiomyocyte volume. During cardiac aging, the removal of defective or dysfunctional mitochondria by mitoph...
2,330,547
Automated 3D U-net based segmentation of neonatal cerebral ventricles from 3D ultrasound images.
Intraventricular hemorrhaging (IVH) within cerebral lateral ventricles affects 20-30% of very low birth weight infants (&lt;1500&#xa0;g). As the ventricles increase in size, the intracranial pressure increases, leading to post-hemorrhagic ventricle dilatation (PHVD), an abnormal enlargement of the head. The most widely...
2,330,548
Outlier detection in multimodal MRI identifies rare individual phenotypes among more than 15,000 brains.
Outliers in neuroimaging represent spurious data or the data of unusual phenotypes that deserve special attention such as clinical follow-up. Outliers have usually been detected in a supervised or semi-supervised manner for labeled neuroimaging cohorts. There has been much less work using unsupervised outlier detection...
2,330,549
Cotton rats (Sigmodon hispidus) with a high prevalence of hydrocephalus without clinical symptoms.
Normal-pressure hydrocephalus (NPH) is a condition in which the ventricle is enlarged without elevated cerebrospinal fluid pressure, and it generally develops in later life and progresses slowly. A complete animal model that mimics human idiopathic NPH has not yet been established, and the onset mechanisms and detailed...
2,330,550
Expanded Transsphenoidal Trans-Lamina Terminalis Approach to Tumors Extending Into the Third Ventricle: Technique Notes and a Single Institute Experience.
The trans lamina terminalis approach (TLTA) has been described as a way to remove third ventricular tumors. The aim of this paper was to analyze the feasible outcomes of TLTA applied to tumors extending into the third ventricle in our institute.</AbstractText>Suprasellar tumors (n = 149) were treated by the extended en...
2,330,551
MiR-29c-3p May Promote the Progression of Alzheimer's Disease through BACE1.
The aim of this study was to explore the specific role of miR-29c-3p in Alzheimer's disease (AD). Animal models of AD were established by injecting streptozotocin (STZ) into mice through the lateral ventricle, while cell models of AD were induced by 10&#x2009;<i>&#x3bc;</i>M <i>&#x3b2;</i>-amyloid (A<i>&#x3b2;</i>). We...
2,330,552
Case Report: No Evidence of Intracranial Fluid Shifts in an Astronaut Following an Aborted Launch.
Spaceflight induces lasting enlargement of the brain's ventricles as well as intracranial fluid shifts. These intracranial fluid shifts have been attributed to prolonged microgravity exposure, however, the potential effects of hypergravity exposure during launch and landing have yet to be elucidated. Here we describe a...
2,330,553
Cerebellar Patterning Defects in Mutant Mice.
The cerebellar cortex is highly compartmentalized and serves as a remarkable model for pattern formation throughout the brain. In brief, the adult cerebellar cortex is subdivided into five anteroposterior units-transverse zones-and subsequently, each zone is divided into &#x223c;20 parasagittal stripes. Zone-and-stripe...
2,330,554
Pediatric cardiac and great vessel injuries: Recent experience at two pediatric trauma centers.
Cardiac injuries are rare in pediatric trauma patients and data regarding this type of injury is limited. There is even less data on traumatic great vessel injuries. This study sought to examine and summarize our recent experience at two pediatric trauma centers, which serve a major metropolitan area and large geograph...
2,330,555
A novel assay to assess the effects of estrogen on the cardiac calmodulin binding equilibrium.
The Ca2+</sup>-binding protein calmodulin (CaM) modulates numerous target proteins but is produced insufficiently to bind all of them, generating a limiting CaM equilibrium. Menopause increases cardiac morbidity; however, it is unknown if the cardiac CaM equilibrium is affected by estrogen. We devised an assay to asses...
2,330,556
Rhomboencephalosynapsis: Review of the Literature.
Rhombencephalosynapsis is a rare congenital anomaly, characterized by partial or total agenesis of the cerebellar vermis with midline fusion of the cerebellar hemispheres, dentate nuclei, and the superior cerebellar peduncles, creating the distinctive keyhole appearance of the fourth ventricle. Rhombencephalosynapsis c...
2,330,557
Dandy-Walker syndrome with bilateral choanal atresia: A case report.
Dandy-Walker syndrome is a rare congenital brain malformation characterized by cerebellar vermis agenesis or hypoplasia, cystic dilatation of the fourth ventricle and a large posterior fossa causing upward displacement of tentorium and torcula. In this paper, we present a case of bilateral choanal atresia with Dandy-Wa...
2,330,558
The "Super-Fontan" Phenotype: Characterizing Factors Associated With High Physical Performance.
<b>Background:</b> People with a Fontan circulation usually have moderately impaired exercise performance, although a subset have high physical performance ("Super-Fontan"), which may represent a low-risk phenotype. <b>Methods:</b> People with a "Super-Fontan" phenotype were defined as achieving normal exercise perform...
2,330,559
Comparison of Lumbar and Ventricular Cerebrospinal Fluid for Diagnosis and Monitoring of Meningitis.
Severe meningitis, especially basilar meningitis, can lead to hydrocephalus requiring external ventricular drain (EVD) placement. There are differences in cerebrospinal fluid (CSF) obtained from an EVD compared to a lumbar puncture (LP). Hence, it becomes difficult to compare LP and EVD samples for diagnosis and monito...
2,330,560
Acute Effect of Caffeine on the Synthesis of Pro-Inflammatory Cytokines in the Hypothalamus and Choroid Plexus during Endotoxin-Induced Inflammation in a Female Sheep Model.
This study was designed to determine the effect of acute caffeine (CAF) administration, which exerts a broad spectrum of anti-inflammatory activity, on the synthesis of pro-inflammatory cytokines and their receptors in the hypothalamus and choroid plexus (ChP) during acute inflammation caused by the injection of bacter...
2,330,561
Potential Applications of Computational Fluid Dynamics for Predicting Hemolysis in Mitral Paravalvular Leaks.
Paravalvular leaks (PVLs) may lead to hemolysis. In vitro shear stress forces above 300 Pa cause erythrocyte destruction. PVL channel dimensions may determine magnitude of shear stress forces that affect erythrocytes; however, this has not been tested. It remains unclear how different properties of PVL channels contrib...
2,330,562
Development of a 3-Dimensional Model to Study Right Heart Dysfunction in Pulmonary Arterial Hypertension: First Observations.
Pulmonary arterial hypertension (PAH) patients eventually die of right heart failure (RHF). Currently, there is no suitable pre-clinical model to study PAH. Therefore, we aim to develop a right heart dysfunction (RHD) model using the 3-dimensional engineered heart tissue (EHT) approach and cardiomyocytes derived from p...
2,330,563
RNA Profiling of Mouse Ependymal Cells after Spinal Cord Injury Identifies the Oncostatin Pathway as a Potential Key Regulator of Spinal Cord Stem Cell Fate.
Ependymal cells reside in the adult spinal cord and display stem cell properties in vitro. They proliferate after spinal cord injury and produce neurons in lower vertebrates but predominantly astrocytes in mammals. The mechanisms underlying this glial-biased differentiation remain ill-defined. We addressed this issue b...
2,330,564
Spectral Analysis of Tissue Displacement for Cardiac Activation Mapping: Ex Vivo Working Heart and In Vivo Study.<Pagination><StartPage>942</StartPage><EndPage>956</EndPage><MedlinePgn>942-956</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1109/TUFFC.2021.3137989</ELocationID><Abstract><AbstractText...
Characterizing myocardial activation is of major interest for understanding the underlying mechanism of cardiac arrhythmias. Electromechanical wave imaging (EWI) is an ultrafast ultrasound-based method used to map the propagation of the local contraction triggered by electrical activation of the heart. This study intro...
2,330,565
MRI features of an atypical case of extraventricular neurocytoma: A case report.
Central neurocytoma occurring outside the ventricles is known as extraventricular neurocytoma (EVN). EVN is rare and its magnetic resonance imaging (MRI) findings vary greatly and overlap with the imaging features of other intracerebral primary tumors.</AbstractText>A 21-year-old woman with an intrauterine pregnancy of...
2,330,566
The Interventricular Septum Is Biomechanically Distinct from the Ventricular Free Walls.
The interventricular septum contributes to the pumping function of both ventricles. However, unlike the ventricular wall, its mechanical behavior remains largely unknown. To fill the knowledge gap, this study aims to characterize the biaxial and transmural variation of the mechanical properties of the septum and compar...
2,330,567
Assessments of right ventricular strain using cardiac magnetic resonance imaging following kidney transplantation.
Although kidney transplantation (KT) has been shown to ameliorate adverse left ventricular (LV) remodelling associated with end stage kidney disease, its effects on the right ventricle have not been well studied. Recently, strain imaging has been shown to be a sensitive measure of early subclinical myocardial dysfuncti...
2,330,568
Primary cardiac <i>CIC</i>-rearranged undifferentiated sarcoma in an infant.
Cardiac neoplasms are particularly rare in children, and the majority of these tumors are benign. Approximately 10% of cardiac neoplasms are malignant, including soft tissue sarcomas and lymphomas. Cardiac tumors could also be metastases. Primitive EWSR1-</i>negative round or spindle cell undifferentiated sarcoma harbo...
2,330,569
The impact of methylphenidate treatment on the functional and structural properties of the left ventricle: A medium-term prospective study.
Although methylphenidate (MPH) used for treatment of attention deficit hyperactivity disorder (ADHD) are considered safe in healthy children and adolescents in the short and medium term, there is a widespread concern about long-term cardiovascular safety.</AbstractText>Interventional, prospective, longitudinal and comp...
2,330,570
Validation of Sonographic Fronto-Occipital Ratio Based on Anatomical Landmarks Compared to MR/CT-Derived Indexes in Children with Chiari II and Ventriculomegaly.
Ultrasound (US)-based indexes such as fronto-occipital ratio (FOR) can be used to obtain an acceptable estimation of ventricular volume. Patients with colpocephaly present a unique challenge due to the shape of their ventricles. In the present study, we aimed to evaluate the validity and reproducibility of the modified...
2,330,571
Left Ventricular Unloading During Extracorporeal Life Support: Current Practice.
Venoarterial extracorporeal life support (VA-ECLS) is a powerful tool that can provide complete cardiopulmonary support for patients with refractory cardiogenic shock. However, VA-ECLS increases left ventricular (LV) afterload, resulting in greater myocardial oxygen demand, which can impair myocardial recovery and wors...
2,330,572
The blood-CSF-brain route of neurological disease: The indirect pathway into the brain.
The brain is protected by the endothelial blood-brain barrier (BBB) that limits the access of micro-organisms, tumour cells, immune cells and autoantibodies to the parenchyma. However, the classic model of disease spread across a disrupted BBB does not explain the focal distribution of lesions seen in a variety of neur...
2,330,573
Decellularized Extracellular Matrix Powder Accelerates Metabolic Maturation at Early Stages of Cardiac Differentiation in Human Induced Pluripotent Stem Cell-Derived Cardiomyocytes.
During fetal development, cardiomyocytes switch from glycolysis to oxidative metabolism to sustain the energy requirements of functional cells. State-of-the-art cardiac differentiation protocols yield phenotypically immature cardiomyocytes, and common methods to improve metabolic maturation require multistep protocols ...
2,330,574
Normal Growth, Sexual Dimorphism, and Lateral Asymmetries at Fetal Brain MRI.
Background Tools in image reconstruction, motion correction, and segmentation have enabled the accurate volumetric characterization of fetal brain growth at MRI. Purpose To evaluate the volumetric growth of intracranial structures in healthy fetuses, accounting for gestational age (GA), sex, and laterality with use of ...
2,330,575
A three-dimensional atlas of child's cardiac anatomy and the unique morphological alterations associated with obesity.
Statistical shape models (SSMs) of cardiac anatomy provide a new approach for analysis of cardiac anatomy. In adults, specific cardiac morphologies associate with cardiovascular risk factors and early disease stages. However, the relationships between morphology and risk factors in children remain unknown. We propose a...
2,330,576
The pressure differential efflux technique - A novel approach for troubleshooting air-locked external ventricular drainage systems: A technical note and review of literature.
External ventricular drainage (EVD) is carried out in many neurosurgical conditions for the diversion of cerebrospinal fluid. These EVD systems can, however, malfunction with potentially lethal consequences. Air bubbles within the EVD can result in air locking of the system with subsequent blockage of drainage, with bl...
2,330,577
Endoscopic High Occipital Interhemispheric Transtentorial Approach for Lesions in the Anterosuperior Cerebellum, Upper Fourth Ventricle, and Upper Dorsal Brain Stem.
The occipital transtentorial route is considered the most suitable for surgical treatment of lesions arising from the anterosuperior cerebellum, upper fourth ventricle, and upper dorsal brain stem. Therefore, this study examined the feasibility and effectiveness of the endoscopic high occipital interhemispheric transte...
2,330,578
Morphology of septomarginal trabeculae in Hatay mountain gazelle (Gazella gazella).
This study was conducted to reveal the anatomical and histological features of left and right septomarginal trabeculae in the heart of the Hatay mountain gazelle. In the study, two female and two male adult Hatay mountain gazelle hearts were used. For this purpose, the materials detected in 10% formaldehyde solution we...
2,330,579
Reinvestigating Tumor-Ventricle Relationship of Craniopharyngiomas With Predominantly Ventricular Involvement: An Endoscopic Endonasal Series Based on Histopathological Assessment.
Craniopharyngiomas (CPs) predominantly involving the third ventricle were commonly termed "intraventricular" lesions. The aim of this study was to clarify the anatomical relationship between the tumor and the third ventricle by both surgical and histological investigation.</AbstractText>A retrospective review of primar...
2,330,580
The Antagonism of Corticotropin-Releasing Factor Receptor-1 in Brain Suppress Stress-Induced Propofol Self-Administration in Rats.
Propofol addiction has been detected in humans and rats, which may be facilitated by stress. Corticotropin-releasing factor acts through the corticotropin-releasing factor (CRF) receptor-1 (CRF1R) and CRF2 receptor-2 (CRF2R) and is a crucial candidate target for the interaction between stress and drug abuse, but its ro...
2,330,581
[Contrast-enhancement Effects of Dual-peak Contrast Medium Injection Method Using Bolus-tracking Technique in Coronary and Aorta CT Angiography].
We compared the contrast-enhancement effects of the coronary arterial phase and the aortic phase in coronary and aorta computed tomography angiography (CA-CTA) using the bolus-tracking technique-based single-peak contrast medium injection (BT-SPI) method and the bolus-tracking technique-based dual-peak contrast medium ...
2,330,582
Administration of miR-195 Inhibitor Enhances Memory Function Through Improving Synaptic Degradation and Mitochondrial Dysfunction of the Hippocampal Neurons in SAMP8 Mice.
Mitochondrial dysfunction is an early feature of Alzheimer's disease (AD) and miR-195 is involved in mitochondrial disorder through targeting MFN-2 protein in hippocampal neurons of AD.</AbstractText>To clarify if administration of miR-195 inhibitor could enhance the memory deficits through improving hippocampal neuron...
2,330,583
Developmental morphology of the turkey pineal gland in histological images and 3D models.
The histological structure of the avian pineal gland during embryonic life has so far only been studied in chickens. It is known that the pineal organs of hatched chickens and turkeys differ significantly from each other based on their morphology and physiology. The aim of the present study was to investigate the histo...
2,330,584
Utilizing phenotypic characteristics of metastatic brain tumors to improve the probability of detecting circulating tumor DNA from cerebrospinal fluid in non-small-cell lung cancer patients: development and validation of a prediction model in a prospective cohort study.
Circulating tumor DNA (ctDNA) in cerebrospinal fluid (CSF) has become a promising surrogate for genomic profiling of central nervous system tumors. However, suboptimal ctDNA detection rates from CSF limit its clinical utility. Thus precise screening of suitable patients is needed to maximize the clinical benefit.</Abst...
2,330,585
White matter hyperintensities relate to executive dysfunction, apathy, but not disinhibition in long-term adult survivors of pediatric cerebellar tumor.
White matter hyperintensities (WMHs) have been related to executive dysfunction, apathy and disinhibition in a wide range of neurological populations. However, this relationship has not been examined in survivors of pediatric brain tumor. The goal of this study was to investigate how executive dysfunction, apathy, and ...
2,330,586
Peripapillary retinal nerve fiber layer thinning in patients with progressive supranuclear palsy.
To investigate peripapillary retinal nerve fiber layer (pRNFL) changes in patients with progressive supranuclear palsy (PSP).</AbstractText>We included 21 PSP patients (36 eyes) who underwent peripapillary optical coherence tomography (OCT) scans at 2.5&#x2009;&#xb1;&#x2009;1.3&#xa0;years of disease, without ophthalmol...
2,330,587
Spastic paraplegia as the only manifestation in neuropsychiatric lupus: a case report.
Demyelination syndrome is one manifestation of neuropsychiatric lupus erythematosus (NPLE) and is rare in systemic lupus erythematosus (SLE). When SLE presents only neuropsychiatric symptoms without damage to other systems, its diagnosis becomes difficult. Herein, we report a 29-year-old male who suffered from lower li...
2,330,588
Unusual magnetic resonance imaging of the head in manganese and ephedrone intoxication - a case report.
Manganese intoxication leads to the accumulation of manganese in the brain, mostly in the globus pallidus, which clinically manifests as a L-DOPA - resistant parkinsonian syndrome with specific symptoms, such as spastic-hypokinetic dysarthria and postural instability. A new kind of manganese poisoning associated with d...
2,330,589
Lesion covariance networks reveal proposed origins and pathways of diffuse gliomas.
Diffuse gliomas have been hypothesized to originate from neural stem cells in the subventricular zone and develop along previously healthy brain networks. Here, we evaluated these hypotheses by mapping independent sources of glioma localization and determining their relationships with neurogenic niches, genetic markers...
2,330,590
Sensory Afferent Renal Nerve Activated G&#x3b1;i<sub>2</sub> Subunit Proteins Mediate the Natriuretic, Sympathoinhibitory and Normotensive Responses to Peripheral Sodium Challenges.
We have previously reported that brain G&#x3b1;i<sub>2</sub> subunit proteins are required to maintain sodium homeostasis and are endogenously upregulated in the hypothalamic paraventricular nucleus (PVN) in response to increased dietary salt intake to maintain a salt resistant phenotype in rats. However, the origin of...
2,330,591
Sodium selenate as a disease-modifying treatment for progressive supranuclear palsy: protocol for a phase 2, randomised, double-blind, placebo-controlled trial.
Progressive supranuclear palsy (PSP) is a neurodegenerative disorder for which there are currently no disease-modifying therapies. The neuropathology of PSP is associated with the accumulation of hyperphosphorylated tau in the brain. We have previously shown that protein phosphatase 2 activity in the brain is upregulat...
2,330,592
PRDM16 Is a Compact Myocardium-Enriched Transcription Factor Required to Maintain Compact Myocardial Cardiomyocyte Identity in Left Ventricle.
Left ventricular noncompaction cardiomyopathy (LVNC) was discovered half a century ago as a cardiomyopathy with excessive trabeculation and a thin ventricular wall. In the decades since, numerous studies have demonstrated that LVNC primarily has an effect on left ventricles (LVs) and is often associated with LV dilatio...
2,330,593
ATM modulates subventricular zone neural stem cell maintenance and senescence through Notch signaling pathway.
Ataxia telangiectasia mutated (ATM) plays an essential role in DNA damage response and the maintenance of genomic stability. However, the role of ATM in regulating the function of adult neural stem cells (NSCs) remains unclear. Here we report that ATM deficiency led to accumulated DNA damage and decreased DNA damage re...
2,330,594
CNS GNPDA2 Does Not Control Appetite, but Regulates Glucose Homeostasis.
<i>GNPDA2</i> has been associated with human obesity and type-2 diabetes by using a GWAS approach. GNPDA2 is an enzyme involved in the hexosamine biosynthesis pathway, which is known to be important for nutrient sensing in various organism. Its counter enzyme, GFAT, has previously been shown to be important to the deve...
2,330,595
Single-cell delineation of lineage and genetic identity in the mouse brain.
During neurogenesis, mitotic progenitor cells lining the ventricles of the embryonic mouse brain undergo their final rounds of cell division, giving rise to a wide spectrum of postmitotic neurons and glia<sup>1,2</sup>. The link between developmental lineage and cell-type diversity remains an open question. Here we use...
2,330,596
Metformin attenuates sepsis-induced neuronal injury and cognitive impairment.
Sepsis is considered to be a high-risk factor for cognitive impairment in the brain. The purpose of our study is to explore whether sepsis causes cognitive impairment and try to evaluate the underlying mechanisms and intervention measures.</AbstractText>Here, we used cecum ligation and puncture (CLP) to simulate sepsis...
2,330,597
Correction: Mouse Models of Intracerebral Hemorrhage in Ventricle, Cortex, and Hippocampus by Injections of Autologous Blood or Collagenase.
[This corrects the article DOI: 10.1371/journal.pone.0097423.].
2,330,598
Left Ventricular Noncompaction as a Rare Cause of Syncope.
Left ventricular noncompaction (LVNC) is a relatively rare myocardial disorder which is characterized by trabeculations and deep intertrabecular recesses within the left ventricle. LVNC is often asymptomatic but may present with heart failure, arrhythmias, or systemic thromboembolism. Uncommonly, patients with LVNC can...
2,330,599
Magnetic resonance imaging of cerebrospinal fluid outflow after low-rate lateral ventricle infusion in mice.
The anatomical routes for the clearance of cerebrospinal fluid (CSF) remain incompletely understood. However, recent evidence has given strong support for routes leading to lymphatic vessels. A current debate centers upon the routes through which CSF can access lymphatics, with evidence emerging for either direct route...