Unnamed: 0
int64
0
2.34M
titles
stringlengths
5
21.5M
abst
stringlengths
1
21.5M
2,327,600
Remote ischemic postconditioning attenuates damage in rats with chronic cerebral ischemia by upregulating the autophagolysosome pathway via the activation of TFEB.
The transcription factor EB (TFEB) is known for its role in lysosomal biogenesis, and it coordinates this process by driving autophagy and lysosomal gene expression during ischemia. In the present study, we aimed to explore the role of the TFEB-regulated autophagolysosome pathway (ALP) in rats with chronic cerebral isc...
2,327,601
Norepinephrine is a negative regulator of the adult periventricular neural stem cell niche.
The limited proliferative capacity of neuroprogenitor cells (NPCs) within the periventricular germinal niches (PGNs) located caudal of the subventricular zone (SVZ) of the lateral ventricles together with their high proliferation capacity after isolation strongly implicates cell-extrinsic humoral factors restricting NP...
2,327,602
Coexistence of Ectopic Posterior Pituitary and Sellar/Suprasellar Arachnoid Cyst: A Case Report.
The ectopic posterior pituitary (EPP) is a rare condition characterized by the ectopic location of the posterior pituitary lobe associated with varying degrees of stalk anomalies. The arachnoid cysts (AC) are benign lesions of the arachnoid, which account for 1% of all intracranial space-occupying lesions. Sellar/supra...
2,327,603
How repetitive traumatic injury alters long-term brain function.
How recurrent traumatic brain injury (rTBI) alters brain function years after insult is largely unknown. This study aims to characterize the mechanistic cause for long-term brain deterioration following rTBI using a rat model.</AbstractText>Eighteen Sprague-Dawley wild-type rats underwent bilateral rTBI using a direct ...
2,327,604
Palliative ventriculoperitoneal shunting in dogs with obstructive hydrocephalus caused by tumors affecting the third ventricle.
Hypertensive or obstructive hydrocephalus is a common complication in dogs with tumors affecting the third ventricle for which few therapeutic options are available.</AbstractText>To describe signalment, neurological status, and pre- and postsurgical findings, complications and survival time in 4 dogs with obstructive ...
2,327,605
[Genetic analysis of three fetusesaffected with cardiac rhabdomyomas].
To report on echocardiographic finding and genetic testing of three fetuses with cardiac rhabdomyoma.</AbstractText>Clinical data of the three fetuses was collected. High-throughput sequencing was carried out to analyze the whole exomes of the three fetuses. Suspected variants were confirmed by Sanger sequencing.</Abst...
2,327,606
Clinical impact of left ventricular paced conduction disturbance in cardiac resynchronization therapy.
Myocardial scarring is associated with nonresponse to cardiac resynchronization therapy (CRT) and conduction delay. Little is known about the significance and cause of left ventricular (LV) paced conduction disturbance (LPCD).</AbstractText>The purpose of this study was to investigate the clinical impact of paced inter...
2,327,607
Cellular Response of Ventricular-Subventricular Neural Progenitor/Stem Cells to Neonatal Hypoxic-Ischemic Brain Injury and Their Enhanced Neurogenesis.
To elucidate the brain's intrinsic response to injury, we tracked the response of neural stem/progenitor cells (NSPCs) located in ventricular-subventricular zone (V-SVZ) to hypoxic-ischemic brain injury (HI). We also evaluated whether transduction of V-SVZ NSPCs with neurogenic factor NeuroD1</i> could enhance their ne...
2,327,608
Loss of Cxcr5 alters neuroblast proliferation and migration in the aged brain.
Neurogenesis, the production of new neurons from neural stem cells, dramatically decreases during aging concomitantly with increased inflammation both systemically and in the brain. However, the precise role of inflammation and whether local or systemic factors drive the neurogenic decline during aging is poorly unders...
2,327,609
Human Pluripotent Stem Cells as In Vitro Models of Neurodegenerative Diseases.
My main research focused in the last years has been the reprogramming of differentiated cell types, such as human fibroblasts, into pluripotent stem cells called induced pluripotent stem cells (iPSCs) and the application of this technology to studies of the nervous system and the diseases that affect it. We have been w...
2,327,610
APPL2 Negatively Regulates Olfactory Functions by Switching Fate Commitments of Neural Stem Cells in Adult Olfactory Bulb via Interaction with Notch1 Signaling.
Adult olfactory neurogenesis plays critical roles in maintaining olfactory functions. Newly-generated neurons in the subventricular zone migrate to the olfactory bulb (OB) and determine olfactory discrimination, but the mechanisms underlying the regulation of olfactory neurogenesis remain unclear. Our previous study in...
2,327,611
Normative linear and volumetric biometric measurements of fetal brain development in magnetic resonance imaging.
To provide normative two-dimensional and three-dimensional measurements of brain development in normal fetuses during the second and third trimester by a new semi-automated method.</AbstractText>In this retrospective study, we included 98 normal fetuses at our institution between 21 and 38&#xa0;weeks of gestation. Two-...
2,327,612
Unilateral Hydrocephalus Due to Lateral Ventricle Colloid Cyst Treated by Neuroendoscopic Approach.
Colloid cysts (CCs) are rare brain tumors that cause nonspecific neurological signs associated with acute or chronic increased intracranial pressure. They are usually located in&#xa0;the third ventricle and rarely in the lateral ventricle. This is a report of an unusual case of CC located in the lateral ventricle. A 36...
2,327,613
A Rare Case Report of Encephalocele with Numerous Ependymal Components: A Potential Diagnostic Pitfall.
Different cellular constituents of the central nervous system occurring in encephaloceles or neuroglial heterotopias (NGHs) have been reported, but the ependymal morphology has rarely been described in the previous literature, let alone the related histological images. To determine the ependymal morphology in encephalo...
2,327,614
A Novel Hypomorphic CSF1R Gene Mutation in the Biallelic State Leading to Fatal Childhood Neurodegeneration.
We report the clinical and molecular characterization of a novel biallelic mutation in the <i>CSF1R</i> gene leading to an autosomal recessive form of childhood onset leukoencephalopathy in a consanguineous family. The female child experienced acute encephalopathy at the age of 2 years, followed by spasticity and loss ...
2,327,615
Lingzhi or Reishi Medicinal Mushroom, Ganoderma lucidum (Agaricomycetes) Ameliorates Spatial Learning and Memory Deficits in Rats with Hypercholesterolemia and Alzheimer's Disease.
Hypercholesterolemia has been implicated as one of the pathomechanistic factors of Alzheimer's disease (AD), the most common neurodegenerative disorder affecting memory and learning abilities. In the present study, ameliorative effect of hot water extract (HWE) of mushroom Ganoderma lucidum to the memory and learning r...
2,327,616
Navigating Challenging Left Ventricular Lead Placements for Cardiac Resynchronization Therapy.
Cardiac resynchronization therapy (CRT) is a mainstay in the management of heart failure patients with electrical dyssynchrony. Left ventricular (LV) lead positioning remains an important variable that predicts the response to CRT. Anatomical and technical challenges can hinder optimal LV lead placement using tradition...
2,327,617
The zebrafish as a novel model for the <i>in vivo</i> study of <i>Toxoplasma gondii</i> replication and interaction with macrophages.
<i>Toxoplasma gondii</i> is an obligate intracellular parasite capable of invading any nucleated cell. Three main clonal lineages (type I, II, III) exist and murine models have driven the understanding of general and strain-specific immune mechanisms underlying <i>Toxoplasma</i> infection. However, murine models are li...
2,327,618
Spontaneous Change in Density of Colloid Cyst: An Unusual Phenomenon.
Colloid cysts of the third ventricle are benign congenital lesions. They are at times totally asymptomatic or may be detected in the evaluation for headache, neurologic disturbances, or psychiatric disturbances. They may sometimes cause grave consequences such as coma or even sudden death. The radiologic appearance is ...
2,327,619
Intraventricular Hemorrhage and Posthemorrhagic Ventricular Dilation: Current Approaches to Improve Outcomes.
Intraventricular hemorrhage (IVH) and posthemorrhagic ventricular dilation (PHVD) are important complications of prematurity with short- and long-term implications for the patient and for nursing care. Several approaches have been shown to reduce the incidence of IVH and, more recently, mitigate the impact of IVH on lo...
2,327,620
AIDS-associated Talaromyces marneffei central nervous system infection in patients of southwestern China.
The clinical and laboratory characteristics of AIDS-associated Talaromyces marneffei infection, a rare but a fatal mycosis disease of the central nervous system, remain unclear.</AbstractText>Herein, we conducted a retrospective study of ten AIDS patients with cerebrospinal fluid culture-confirmed central nervous syste...
2,327,621
Troubleshooting an unusual complication following intrathecal chemotherapy delivered via Ommaya catheter: A case report.
The authors report the case of a 39-year-old woman with leukemic meningitis. A right frontal Ommaya reservoir was placed for intrathecal chemotherapy. During and immediately following the first injection of chemotherapy, the patient developed an episode of nausea, emesis, frontal headache and diarrhea. These same sympt...
2,327,622
Paternal Resistance Training Induced Modifications in the Left Ventricle Proteome Independent of Offspring Diet.
Ancestral obesogenic exposure is able to trigger harmful effects in the offspring left ventricle (LV) which could lead to cardiovascular diseases. However, the impact of the father's lifestyle on the offspring LV is largely unexplored. The aim of this study was to investigate the effects of 8 weeks of paternal resistan...
2,327,623
Predicting the Ideal Ventricular Freehand Pass Trajectory Using Osirix Software and the Role of Occipital Shape Variations.
Cannulation of lateral ventricles via a posterior approach is a common neurosurgical procedure. It is often believed that a single entry and fiducial point applies to all. No importance is given to skull shape variations, which can lead to wrong shunt positions and revisions.</AbstractText>A virtual-reality study was c...
2,327,624
Association of Sex with Serum Potassium, Sodium, and Calcium Disorders after Hypertensive Intracerebral Hemorrhage.
To determine the association of sex with serum potassium, sodium, and calcium disorders in patients with hypertensive intracerebral hemorrhage, and meanwhile investigate other risk factors.</AbstractText>A total of 516 patients with hypertensive intracerebral hemorrhage were retrospectively enrolled. The clinical chara...
2,327,625
D-Lys-3-GHRP-6 impairs memory consolidation and downregulates the hippocampal serotonin HT1A, HT7 receptors and glutamate GluA1 subunit of AMPA receptors.
Antagonism of the functional ghrelin receptors impairs memory formation, but the underlying mechanisms are not well-known. We aimed to evaluate the effect of intracerebral injection of a ghrelin receptor antagonist (D-Lys-3-GHRP-6) on memory consolidation in the inhibitory avoidance task and on the gene expression leve...
2,327,626
Fetal brain damage in congenital hydrocephalus.
Congenital hydrocephalus (HCP) is a developmental brain disorder characterized by the abnormal accumulation of cerebrospinal fluid within the ventricles. It is caused by genetic and acquired factors that start during early embryogenesis with disruption of the neurogerminal areas. As might be expected, early-onset hydro...
2,327,627
Impact of caudal hindbrain glycogen metabolism on A2 noradrenergic neuron AMPK activation and ventromedial hypothalamic nucleus norepinephrine activity and glucoregulatory neurotransmitter marker protein expression.
The brain glycogen reserve is a source of oxidizable substrate fuel. Lactoprivic-sensitive hindbrain A2 noradrenergic neurons provide crucial metabolic-sensory input to downstream hypothalamic glucose-regulatory structures. Current research examined whether hindbrain glycogen fuel supply impacts A2 energy stability and...
2,327,628
Pigmented Ependymoma of the Fourth Ventricle-A Curious Entity: Report of a Rare Case With Review of Literature.
A 16-year-old boy presented with a tumor located in fourth ventricle, which showed histological features of an ependymoma replete with perivascular pseudorosettes and true ependymal rosettes. Interestingly, many of the tumor cells exhibited abundant cytoplasm stuffed with a grayish brown pigment. Histochemical stains s...
2,327,629
Implication of the distinctive bipolar intracardiac electrograms for ventricular arrhythmias arising from different regions of ventricular outflow tract.<Pagination><StartPage>1367</StartPage><EndPage>1375</EndPage><MedlinePgn>1367-1375</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1093/europace/eu...
The isolation of ventricular cardiac myocytes from animal and human hearts is a fundamental method in cardiac research. Animal cardiomyocytes are commonly isolated by coronary perfusion with digestive enzymes. However, isolating human cardiomyocytes is challenging because human myocardial specimens usually do not allow...
2,327,630
Personalization of electro-mechanical models of the pressure-overloaded left ventricle: fitting of Windkessel-type afterload models.
Computer models of left ventricular (LV) electro-mechanics (EM) show promise as a tool for assessing the impact of increased afterload upon LV performance. However, the identification of unique afterload model parameters and the personalization of EM LV models remains challenging due to significant clinical input uncer...
2,327,631
Morphology and composition of the midgut bacterial community of Scaptocoris castanea Perty, 1830 (Hemiptera: Cydnidae).
The burrower bug Scaptocoris castanea is an important soybean and pasture pest in Brazil, with an underground habit feeding directly on the sap of the roots. Underground habit hinders control and knowledge of the biology and physiology of this pest. This study describes the anatomy, histology, ultrastructure and symbio...
2,327,632
Choroid plexus changes on magnetic resonance imaging in multiple sclerosis and neuromyelitis optica spectrum disorder.
To investigate alterations in the choroid plexus in multiple sclerosis (MS) and neuromyelitis optica spectrum disorder (NMOSD) using brain magnetic resonance imaging (MRI).</AbstractText>We prospectively recruited consecutive patients with MS or NMOSD from July 2018 to February 2019. The inclusion criterion was brain M...
2,327,633
Endoscopic management of an intrasellar arachnoid cyst through the tuber cinereum in an adult: a case report.
The transventricular endoscopic approach is an effective less invasive method for the management of symptomatic intrasellar arachnoid cysts in adults. The open area of the brain tissue defect in the infundibular recess caused by the upward compression of the cyst is a common target site for fenestration from the third ...
2,327,634
Association between supratentorial pediatric high-grade gliomas involved with the subventricular zone and decreased survival: a multi-institutional retrospective study.
The subventricular zone (SVZ), housed in the lateral walls of the lateral ventricles, is the largest neurogenic niche in the brain. In adults, high-grade gliomas in contact or involved with the SVZ are associated with decreased survival. Whether this association holds true in the pediatric population remains unexplored...
2,327,635
Galectin-3 diminishes Wnt signaling in the postnatal subventricular zone.
Postnatal subventricular zone (pSVZ) stem and progenitor cell proliferation is regulated by several developmental signaling pathways such as Wnt/&#x3b2;-catenin. However, the molecular regulation of Wnt function in the pSVZ is poorly understood. We previously showed that Wnt signaling is upregulated in an SVZ gliomagen...
2,327,636
Using the Lateral Pontine Safe Entry Zone for Resection of Deep-Seated Cavernous Malformations in the Lateral Pons: 2-Dimensional Operative Video.
The retrosigmoid approach is one of the main approaches used in the surgical management of pontine cavernous malformations. It definitely provides a lateral route to large central lesions but also makes possible resection of some ventral lesions as an alternative to the petrosal approaches. However, when these vascular...
2,327,637
Bisdemethoxycurcumin inhibits oxidative stress and antagonizes Alzheimer's disease by up-regulating SIRT1.
Alzheimer's disease (AD) is a progressive neurodegenerative disease. It can lead to progressive cognitive impairment, memory loss, and behavioral alterations. So far, the exact cellular and molecular mechanisms underlying this disorder remain unclear. And there are no effective treatments to prevent, halt, or reverse A...
2,327,638
Handedness related differences in the intracranial fluid spaces in healthy adults.
<b>Purpose:</b> Our study aimed to determine the possible differences in linear measurements and linear indices values of intracranial fluid spaces (IFS) between right- and left-handed adults.<b>Methods:</b> This work has been carried out on 148 subjects (72 men and 76 women). In the study, 88 right-handers and 60 left...
2,327,639
Reference Ranges for Left Ventricular Curvedness and Curvedness-Based Functional Indices Using Cardiovascular Magnetic Resonance in Healthy Asian Subjects.
Curvature-based three-dimensional cardiovascular magnetic resonance (CMR) allows regional function characterization without an external spatial frame of reference. However, introduction of this modality into clinical practice is hampered by lack of reference values. We aim to establish normal ranges for 3D left ventric...
2,327,640
Long-term alterations in brain and behavior after postnatal Zika virus infection in infant macaques.
Zika virus (ZIKV) infection has a profound impact&#xa0;on the fetal nervous system. The postnatal period is also a time of rapid brain growth, and it is important to understand the potential neurobehavioral consequences of ZIKV infection during infancy. Here we show that postnatal ZIKV infection in a rhesus macaque mod...
2,327,641
Induction of inducible nitric oxide synthase expression in activated microglia and astrocytes following pre- and postnatal immune challenge in an animal model of schizophrenia.
In the central nervous system, activated microglia and astrocytes produce proinflammatory mediators such as inducible nitric oxide (iNOS) and cytokines. Uncontrolled release of these mediators induced by immune challenge can lead to increased vulnerability to complex brain disorders such as schizophrenia. In this study...
2,327,642
The Role of TREK-1 and AQP5 in Gonadocorticoid-Related Voice Disorders.
TWIK-related potassium channel-1 (TREK-1) and Aquaporin 5 (AQP5) are involved in epithelial integrity and fluid transport, respectively. In this study, we aimed to compare physiological and gestational patterns of TREK-1 and AQP5 location and expression in rat larynx. Our secondary objective was to reveal the effect of...
2,327,643
<i>Candida</i> meningitis in neurosurgical patients: a single-institute study of nine cases over 7 years.
Candida meningitis in neurosurgical patients is relatively unusual but is associated with a high mortality rate. We present our experience with this infection and discuss the clinical characteristics, treatment options and outcomes. We retrospectively reviewed neurosurgical patients with multiple positive cerebrospinal...
2,327,644
Protein and mRNA Delivery Enabled by Cholesteryl-Based Biodegradable Lipidoid Nanoparticles.
Developing safe and efficient delivery systems for therapeutic biomacromolecules is a long-standing challenge. Herein, we report a newly developed combinatorial library of cholesteryl-based disulfide bond-containing biodegradable cationic lipidoid nanoparticles. We have identified a subset of this library which is effe...
2,327,645
Role of mGluR 1 in synaptic plasticity impairment induced by maltol aluminium in rats.
The main symptoms of Alzheimer's disease (AD) is the loss of learning and memory ability, of which biological basis is synaptic plasticity. Aluminium has been found to cause changes in synaptic plasticity, but its molecular mechanism was unclear. In this study, Sprague-Dawley rats were injected with aluminium maltol (A...
2,327,646
Calcifications of the Medial Choroid in the Velum Interpositum: An Unrecognized Site of Physiologic Calcifications Evident on Multidetector Computed Tomography.
In adult patients undergoing multidetector computed tomography (CT) of the brain, we observed linear calcification along the deep venous system on thin (&lt;3 mm) sagittal reconstructions. We found no reports of this finding in the velum interpositum (VI) in the imaging literature. We performed a focused examination of...
2,327,647
Isolated Bilateral Hypoglossal Palsy Complicating a Fourth Ventricle Ependymoma Surgery.
Isolated bilateral hypoglossal palsy is a rare condition that has never been described after surgery in the lower part of the fourth ventricle. In this article, we discuss various possible etiologies and relevant anatomy considerations of the rhomboid fossa.</AbstractText>We describe a case of bilateral hypoglossal pal...
2,327,648
Frame-Based Stereotactic Endoscopic Third Ventriculostomy-Toward Improved Precision and Minimizing Morbidities.
Endoscopic third ventriculostomy (ETV) is a widely accepted treatment for obstructive hydrocephalus. For most practitioners, this procedure will be performed without navigation guidance. Without such guidance, the complications associated with the procedure have ranged from 1% to 8%. We hypothesized that the discrepanc...
2,327,649
Allopregnanolone induces antidepressant-like effects through BDNF-TrkB signaling independent from AMPA receptor activation in a rat learned helplessness model of depression.
Allopregnanolone (ALLO, 3&#x3b1;5&#x3b1;-tetrahydroprogesterone) was found to be effective for depressed patients. Animal models of depression indicate that ALLO is associated with the pathophysiology of depression. Traditional antidepressant drugs produce antidepressant effects via the monoamine system, with consequen...
2,327,650
A novel diagnostic tool for the evaluation of hypothalamic-pituitary region and diagnosis of growth hormone deficiency: pons ratio.
Backgrounds Limitations in the evaluation of the pituitary size and changes according to pubertal status make its validity questionable. Recently, in a small-scale study, pons ratio (PR) has been suggested as a more sensitive tool for diagnosis and etiological evaluation of growth hormone deficiency (GHD). The aim of t...
2,327,651
Evaluation of relationships between results of electrocardiography and echocardiography in 341 chimpanzees (<i>Pan troglodytes</i>).<Pagination><StartPage>488</StartPage><EndPage>498</EndPage><MedlinePgn>488-498</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.2460/ajvr.81.6.488</ELocationID><Abstract...
To examine potential relationships between ECG characteristics and echocardiographic measures of cardiac structure in chimpanzees (Pan troglodytes</i>).</AbstractText>341 chimpanzees (175 males and 166 females) from 5 sanctuaries and 2 zoological collections.</AbstractText>Chimpanzees were anesthetized for routine heal...
2,327,652
Structural changes in the brain of patients with relapsing-remitting multiple sclerosis compared to controls: a MRI-based stereological study.
Multiple sclerosis (MS) is an inflammatory autoimmune disorder of the central nervous system characterized by demyelination, inflammation, gliosis, and axonal loss. Nowadays, increasing scientific reports have focused on neurodegenerative processes and structural changes of the disease underlying pathogenesis.</Abstrac...
2,327,653
[A case of hereditary diffuse leukoencephalopathy with spheroids and pigmented glia presenting with long-term mild psychiatric symptoms].
A 64-year-old woman visited our hospital with early-onset dementia and progressive gait disturbance. She had demonstrated a mild communication disorder at the age of ~40 years; however, her psychiatric symptoms at that time were mild and were not accompanied by social problems. At the age of 59, she presented with memo...
2,327,654
Familial Cerebral Cavernous Malformation Syndrome with Concomitant Fourth Ventricular Ependymoma: True Association or Mere Coincidence?
Familial cerebral cavernous malformation syndromes are most commonly caused by mutations in one of three genes. The overlap of these genetic malformations with other acquired neoplastic lesions and congenital malformations is still under investigation. To the best of our knowledge, the concurrent occurrence of familial...
2,327,655
Optimization of Intracranial Germinoma Treatment: Radiotherapy Alone with Reduced Volume and Dose.
We investigated optimal management for intracranial germinoma, including target volume and dose of radiation therapy (RT) and the combination of RT and chemotherapy (CTx).</AbstractText>We retrospectively evaluated 213 patients with intracranial germinoma treated between 1971 and 2017. Treatment policies changed as dia...
2,327,656
Communicating Syringomyelia.
Communicating syringomyelia can develop in association with hydrocephalus, with communication between syringomyelia and the fourth ventricle a representative neuroimaging finding.</AbstractText>A 51-year-old woman presented with slowly progressive bladder dysfunction and scoliosis. She had a nonfunctioning cerebrospina...
2,327,657
A Rare Case of Postinfectious Moyamoya Syndrome: Case Report and Review of the Literature.
Postinfectious Moyamoya syndrome (MMS) is a rare vasculopathy that can follow meningitis. Only 9 cases of MMS after meningitis have been reported in the literature. We present a unique case of MMS after meningitis caused by Aspergillus fumigatus and Escherichia coli and review all cases of MMS postmeningitis in the lit...
2,327,658
Squash cytology of a case of medulloblastoma with myogenic differentiation.
Medulloblastoma with myogenic differentiation is not a distinct entity but a pattern of differentiation seen in &lt;1% of medulloblastomas. Although squash cytology of medulloblastoma is well described, there are no reports available describing squash cytomorphology of this unusual variant of medulloblastoma. Intraoper...
2,327,659
Protective effect of hypoxia inducible factor-1&#x3b1; gene therapy using recombinant adenovirus in cerebral ischaemia-reperfusion injuries in rats.
<b>Context:</b> Hypoxia-inducible factor-1&#x3b1; (HIF-1&#x3b1;)-induced genes can improve blood circulation.<b>Objective:</b> To investigate brain protective effect of recombinant adenovirus-mediated HIF-1&#x3b1; (AdHIF-1&#x3b1;) expression and its mechanism.<b>Materials and methods:</b> Male SD rats were used to esta...
2,327,660
Functional modulation of sarcolemmal K<sub>ATP</sub> channels by atrial natriuretic peptide-elicited intracellular signaling in adult rabbit ventricular cardiomyocytes.
ATP-sensitive potassium (K<sub>ATP</sub>) channels couple cell metabolic status to membrane excitability and are crucial for stress adaptation and cytoprotection in the heart. Atrial natriuretic peptide (ANP), a cardiac peptide important for cardiovascular homeostasis, also exhibits cytoprotective features including pr...
2,327,661
Ommaya Reservoir Insertion: A Technical Note.
Ommaya reservoir insertion is an elective neurosurgical procedure to deliver repeated intraventricular therapy, but placement can be complicated by malposition of the catheter, clogging, infection or poor postoperative cosmesis. Here, we describe the technique used by the senior author for accurate placement including ...
2,327,662
Three-Dimensional Explant Platform for Studies on Choroid Plexus Epithelium.
The choroid plexus (CP) plays a major role in controlling the entry of substances and immune cells into the brain as it forms the blood-cerebrospinal fluid barrier (BCSFB) in the brain ventricles. Dysregulated immune cell trafficking through the epithelial cell (EC) layer of CP is central for the pathogenesis of infect...
2,327,663
Endoscopic needle biopsy of thalamic tumors: technical note.
Neuroendoscopic biopsy represents the procedure of choice for pure intraventricular lesions. Instead, in case of deep-seated paraventricular tumors, with intact ependyma, the advantage of neuroendoscopy over stereotactic biopsy is not so evident, because the lesion is not under direct vision; the tissue sample may be l...
2,327,664
Automated neurosurgical stereotactic planning for intraoperative use: a comprehensive review of the literature and perspectives.
The creation of intracranial stereotactic trajectories, from entry point to target point, is still mostly done manually by the neurosurgeon. The development of automated stereotactic planning tools has been described in the literature. This systematic review aims to assess the effectiveness of stereotactic planning pro...
2,327,665
Hemorrhagic colloid cyst of the third ventricle: A rare cause of colloid cyst growth and progressive hydrocephalus. Case report.
Acute spontaneous bleeding within a colloid cyst of the third ventricle is extremely rare. Accordingly, is difficult to establish reliable prognostic factors, risk factors for obstructive hydrocephalus remain poorly defined, and there are no standard management strategies.</AbstractText>19-Year-old man with a colloid c...
2,327,666
The protective role of Neuregulin1-ErbB4 signaling in a chronic social defeat stress model.
Major depressive disorder (MDD) is a highly prevalent debilitating psychiatric disease and a serious public health problem worldwide. Brain structural MRI and postmortem studies on patients with depression have revealed changes in the anatomy and functionality in various brain regions, including the amygdala, thalamus,...
2,327,667
Evidence of pulmonary arterial hypertension in two patients with common variable immunodeficiency.
Common variable immunodeficiency is a chronic illness plagued with recurrent infections and the potential to develop autoimmune disease. These patients may manifest a spectrum of complications ranging from hematologic malignancy to chronic parenchymal lung disease. Regular immunoglobulin replacement therapy improves im...
2,327,668
Targeted metabolomic analysis of serum phospholipid and acylcarnitine in the adult Fontan patient with a dominant left ventricle.
Patients with a Fontan circulation have altered cholesterol and lipoprotein values. We analysed small organic molecules in extended phopsholipid and acylcarnitine metabolic pathways ('metabolomes') in adult Fontan patients with a dominant left ventricle, seeking differences between profiles in baseline and Fontan circu...
2,327,669
CTRP15 derived from cardiac myocytes attenuates TGF&#x3b2;1-induced fibrotic response in cardiac fibroblasts.
Cardiac fibrosis is characterized by net accumulation of extracellular matrix (ECM) components in the&#xa0; myocardium and facilitates the development of heart failure. C1q/tumor necrosis factor-related protein 15 (CTRP15) is a novel member of the CTRP family, and its gene expression is detected in adult mouse hearts. ...
2,327,670
Brain aging in major depressive disorder: results from the ENIGMA major depressive disorder working group.
Major depressive disorder (MDD) is associated with an increased risk of brain atrophy, aging-related diseases, and mortality. We examined potential advanced brain aging in adult MDD patients, and whether this process is associated with clinical characteristics in a large multicenter international dataset. We performed ...
2,327,671
Time course of photo-induced Egr-1 expression in the hypothalamus of a seasonally breeding songbird.
Many seasonally-breeding species use daylength to time reproduction. Light-induced release of progonadal hormones involves a complex cascade of responses both inside and outside the brain. In this study, we used induction of early growth response 1 (Egr-1), the protein product of an immediate early gene, to evaluate th...
2,327,672
Oxidative stress parameters in patients with ascending aortic dilatation.
<AbstractText Label="BACKGROUND/AIM">This study aimed to determine plasma thiol, disulphide, and serum ischemia-modified albumin (IMA) levels and ferroxidase activity in patients with ascending aorta dilatation (AAD) in comparison to those without AAD and to evaluate the predictive value of these oxidative stress param...
2,327,673
Protective Effects of Quercetin on Anxiety-Like Symptoms and Neuroinflammation Induced by Lipopolysaccharide in Rats.
Recently, neuroinflammation is thought to be one of the important causes of many neuropsychiatric diseases. Quercetin (QUER) is a natural flavonoid, and it is well known that QUER has antioxidative, anti-inflammatory, and neuroprotective effects. In our study, lipopolysaccharide (LPS) was injected into the lateral vent...
2,327,674
Organ Culture and Grafting of Choroid Plexus into the Ventricular CSF of Normal and Hydrocephalic HTx Rats.
Choroid plexus (CP) may aid brain development and repair by secreting growth factors and neurotrophins for CSF streaming to ventricular and subventricular zones. Disrupted ventricular/subventricular zone progenitors and stem cells lead to CNS maldevelopment. Exploring models, we organ cultured the CP and transplanted f...
2,327,675
Fatal cardiac injury sustained from an air gun: Case report with review of the literature.
Traditionally promoted as "toy guns," air guns have long been used by children and lack many regulatory guidelines compared to conventional firearms. However these weapons possess serious lethal potential and have led to numerous injuries and deaths.</AbstractText>We describe a 21 year old man who sustained a penetrati...
2,327,676
Brain Herniation into the Subdural Space: Rare Iatrogenic Complication of Treatment of a Giant Calcified Subdural Hematoma.
Chronic subdural hematoma associated with dural calcifications in previously pediatric shunted patients is a rare condition. The inner dural membrane opening can lead to progressive brain herniation into the subdural space due to brain reexpansion.</AbstractText>A 15-year-old boy, previously shunted at birth for congen...
2,327,677
Intraventricular pseudolymphoma a case review.
Intracranial pseudolymphoma is a rare entity. We report the case of a 44&#xa0;year old female who presented with headaches and was noted to have a right lateral ventricular lesion on a background history of Burkitt's lymphoma. She underwent biopsy of said lesion and was found to have benign reactive lymphoid tissue. Th...
2,327,678
Neuroglial transmitophagy and Parkinson's disease.
Mitophagy is essential for the health of dopaminergic neurons because mitochondrial damage is a keystone of Parkinson's disease. The aim of the present work was to study the degradation of mitochondria in the degenerating dopaminergic synapse. Adult Sprague-Dawley rats and YFP-Mito-DAn mice with fluorescent mitochondri...
2,327,679
A study of the outward background current conductance g<sub>K1</sub>, the pacemaker current conductance g<sub>f</sub>, and the gap junction conductance g<sub>j</sub> as determinants of biological pacing in single cells and in a two-cell syncytium using the dynamic clamp.
We previously demonstrated that a two-cell syncytium, composed of a ventricular myocyte and an mHCN2 expressing cell, recapitulated most properties of in vivo biological pacing induced by mHCN2-transfected hMSCs in the canine ventricle. Here, we use the two-cell syncytium, employing dynamic clamp, to study the roles of...
2,327,680
Temporal crescent syndrome caused by a lateral ventricular glioependymal cyst: case report.
Temporal crescent syndrome is a monocular visual field defect involving the temporal crescent of one eye caused by a retrochiasmal lesion. The most anterior portion of the striate cortex is the only area where the retrochiasmal lesion produces a monocular visual field defect. The authors present the case of a 9-year-ol...
2,327,681
The Median Eminence, A New Oligodendrogenic Niche in the Adult Mouse Brain.
The subventricular zone (SVZ) of the lateral ventricles and the subgranular zone (SGZ) of the dentate gyrus in the hippocampus are known as neurogenic niches. We show that the median eminence (ME) of the hypothalamus comprises BrdU<sup>+</sup> newly proliferating cells co-expressing NG2 (oligodendrocyte progenitors) an...
2,327,682
Cardiovascular and pulmonary interactions: why Galen's misconceptions proved clinically useful for 1,300 years.
The new generations of physicians are, to a large extent, unaware of the complex philosophical and biological concepts that created the bases of modern medicine. Building on the Hellenistic tradition of the four humors and their qualities, Galen (AD 129 to c. 216) provided a persuasive scheme of the structure and funct...
2,327,683
Health-Related Quality of Life in Children With Earlier Surgical Repair for Right Ventricular Outflow Tract Anomalies and the Agreement Between Children and Their Parents.
<b>Background:</b> Children diagnosed with right ventricle outflow tract (RVOT) anomalies require surgical repair early in life, reoperations and lifelong follow-up. The aim is to comprehensively describe their health related quality of life (HRQoL) and to assess the agreement in this regard between children and parent...
2,327,684
The Impact of Sex on Left Ventricular Cardiac Adaptations to Endurance Training: a Systematic Review and Meta-analysis.
The left ventricle (LV) entrains major prognostic factors amenable to substantial modification with endurance training (ET). Whether LV adaptations to ET are sex-dependent remains uncertain. The aim of this study was to perform a systematic review and meta-analysis to determine the influence of sex on LV adaptations to...
2,327,685
Late recurrence of choroid plexus carcinoma.
Choroid plexus carcinomas (CPC) are rare malignant brain tumours arising from the choroid plexus epithelium. CPC are most common in the paediatric population, particularly those under 2&#xa0;years of age. Common presentations include headache, diplopia and signs of increased intracranial pressure such as nausea and vom...
2,327,686
The Transcription Factor EB Reduces the Intraneuronal Accumulation of the Beta-Secretase-Derived APP Fragment C99 in Cellular and Mouse Alzheimer&#x2019;s Disease Models.
<b>:</b> Brains that are affected by Alzheimer's disease (AD) are characterized by the overload of extracellular amyloid &#x3b2; (A&#x3b2;) peptides, but recent data from cellular and animal models propose that A&#x3b2; deposition is preceded by intraneuronal accumulation of the direct precursor of A&#x3b2;, C99. These...
2,327,687
Intracerebral Transplantation of BDNF-overexpressing Human Neural Stem Cells (HB1.F3.BDNF) Promotes Migration, Differentiation and Functional Recovery in a Rodent Model of Huntington's Disease.
Huntington's disease (HD) is a dominantly inherited neurodegenerative disorder caused by abnormally expanded CAG repeats in the <i>huntingtin</i> gene. The <i>huntingtin</i> gene mutation leads to the progressive degeneration of striatal GABAergic medium spiny neurons (MSN) and reduces the level of brain-derived neurot...
2,327,688
Vitamin D actions in neurons require the PI3K pathway for both enhancing insulin signaling and rapid depolarizing effects.
Despite correlations between low vitamin D levels and diabetes incidence/severity, supplementation with vitamin D has not been widely effective in improving glucose parameters. This may be due to a lack of knowledge regarding how low vitamin D levels physiologically affect glucose homeostasis. We have previously shown ...
2,327,689
"Left ventricular lipoma&#x2026;.. a rare case", case report.
A cardiac lipoma is a rare primary cardiac tumor. They are usually asymptomatic and carry a good prognosis. Cardiac Magnetic Resonance Imaging (CMR) is the confirmatory investigation of choice.</AbstractText>We present a case of left ventricular lipoma in an asymptomatic patient, which was successfully treated with sur...
2,327,690
Disease severity-related alterations of cardiac microRNAs in experimental pulmonary hypertension.
Right ventricular (RV) failure is the primary cause of death in pulmonary arterial hypertension (PAH). We hypothesized that heart-relevant microRNAs, that is myomiRs (miR-1, miR-133a, miR-208, miR-499) and miR-214, can have a role in the right ventricle in the development of PAH. To mimic PAH, male Wistar rats were inj...
2,327,691
Disappearance of a Distal Shunt Catheter: A Case Report of an Unusual Cause of Shunt Malfunction.
Shunt malfunction is a common complication in patients who undergo ventriculoperitoneal shunt (VPS) placement for the treatment of hydrocephalus. A plethora of reports regarding shunt malfunctions due to distal catheter migration have been demonstrated in the literature. However, to our knowledge, there have been no re...
2,327,692
Pneumocephalus and Chemical Meningitis after Inadvertent Dural Puncture during Lumbar Epidural Injection.
Inadvertent dural puncture (IDP) is one of the complications of lumbar epidural steroid injections (ESIs). We report a case in which pneumocephalus and chemical meningitis developed at the same time after an IDP during a lumbar interlaminar ESI. A 60-year-old woman presented to the emergency room with thunderclap heada...
2,327,693
[Surgical Treatment for Primary Pulmonary Artery Sarcoma;Report of a Case].
Primary pulmonary artery sarcoma is a very rare tumor. The prognosis of primary pulmonary artery sarcoma is extremely poor and it is reported as 1.5 months without treatment. Here we report our experience of surgical treatment of primary pulmonary artery sarcoma. A 66-year-old woman with a diagnosis of pulmonary sarcom...
2,327,694
Pulmonary complications associated with veno-arterial extra-corporeal membrane oxygenation: a comprehensive review.
Veno-arterial extracorporeal membrane oxygenation (VA-ECMO) is a life-saving technology that provides transient respiratory and circulatory support for patients with profound cardiogenic shock or refractory cardiac arrest. Among its potential complications, VA-ECMO may adversely affect lung function through various pat...
2,327,695
White Matter Governed Superior Frontal Sulcus Surgical Paradigm: A Radioanatomic Microsurgical Study-Part II.
Kocher's point (KP) and its variations have provided standard access to the frontal horn (FH) for over a century. Anatomic understanding of white matter tracts (WMTs) has evolved, now positioning us to better inform the optimal FH trajectory.</AbstractText>To (1) undertake a literature review analyzing entry points (EP...
2,327,696
Evaluation of the right heart using cardiovascular magnetic resonance imaging in patients with cardiac devices.
Patients with cardiac implantable electronic devices (CIED) necessitate comprehensive cardiovascular magnetic resonance (CMR) examinations. The aim of this study was to provide data on CMR image quality and feasibility of functional assessment of the right heart in patients with CIED depending on the device type and im...
2,327,697
Cleavage of cyclic AMP-responsive element-binding protein H aggravates myocardial hypoxia reperfusion injury in a hepatocyte-myocardial cell co-culture system.
This study aimed to determine whether proinflammatory cytokines have an effect on myocardial cells (MCs) and hepatocytes during myocardial ischemia to induce cyclic AMP-responsive element-binding protein H (CREBH) cleavage, activate the acute phase response in the liver, and cause a superimposed injury in MCs.</Abstrac...
2,327,698
Nutritionally induced tanycytic plasticity in the hypothalamus of adult ewes.
The blood-brain barrier regulates the transport of molecules that convey global energetic status to the feeding circuitry within the hypothalamus. Capillaries within the median eminence (ME) and tight junctions between tanycytes lining the third ventricle (3V) are critical components of this barrier. Herein, we tested ...
2,327,699
Minimally Invasive Parafascicular Surgical Approach for the Management of a Pediatric Third Ventricular Ependymoma: Case Report and Review of Literature.
Minimally invasive parafascicular surgery (MIPS) has evolved into a safe alternative to access deep-seated subcortical and intraventricular pathologies. We present a case of a port-mediated resection of a pediatric third ventricular tumor.</AbstractText>The patient is a 7-year-old boy who presented with worsening heada...