نتایج جستجو برای: sub ependymal giant cell astrocytoma

تعداد نتایج: 1925277  

Journal: :Neuro-oncology 2022

Abstract Tumor progression and therapeutic resistance in cancer have been strongly associated with stemness. Rather than focus on a discrete subpopulation for stemness tumor maintenance, we might explore as continuous variable through machine learning algorithms. We chose One Class Logistic Regression algorithm to define an epigenetic signature assess brain tumors using induced Neural Stem Cell...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2008
Volkan Coskun Hao Wu Bruno Blanchi Sean Tsao Kevin Kim Jing Zhao Juan Carlos Biancotti Leah Hutnick Richard C Krueger Guoping Fan Jean de Vellis Yi E Sun

The postnatal forebrain subventricular zone (SVZ) harbors stem cells that give rise to olfactory bulb interneurons throughout life. The identity of stem cells in the adult SVZ has been extensively debated. Although, ependymal cells were once suggested to have stem cell characteristics, subsequent studies have challenged the initial report and postulated that subependymal GFAP(+) cells were the ...

Journal: :Archives of disease in childhood. Fetal and neonatal edition 2001
B R Pal P R Preston M E Morgan D I Rushton G M Durbin

BACKGROUND Screening cranial ultrasound led to the discovery of isolated frontal horn cysts quite distinct from periventricular leucomalacia cysts. AIM To clarify their significance, incidence, characteristics, causal factors or aetiology, and effect on long term outcome. DESIGN A retrospective observational study of all first cranial ultrasound scans (total of 2914) performed during the pe...

Journal: :Infection and immunity 2004
Robert A Hirst Bashir J Mohammed Timothy J Mitchell Peter W Andrew Christopher O'Callaghan

Ciliated ependymal cells line the ventricular surfaces and aqueducts of the brain. In ex vivo experiments, pneumolysin caused rapid inhibition of the ependymal ciliary beat frequency and caused ependymal cell disruption. Wild-type pneumococci and pneumococci deficient in pneumolysin caused ciliary slowing, but penicillin lysis of wild-type, not pneumolysin-deficient, pneumococci increased the e...

2013
Mohie HARIDY Hiroki SAKAI El-Shayma EL-NAHASS Ahmed EL-MORSEY Shehata ANWAR Tokuma YANAI

A three-and-a-half year-old female Rahmani ewe was presented suffering from nervous symptoms. Grossly, a large cyst measuring 7 × 4 cm and weighing 145 g occupied the dilated left lateral ventricle. The overlying cerebral tissue was thin, atrophied and congested. It tore easily, and the cyst was evacuated spontaneously. Microscopically, liquefactive necrosis surrounded by aggregations of macrop...

Background Tuberous Sclerosis Complex (TSC), and Spinal Muscular Atrophy (SMA) are two inherited disorders while they are genetically independent. TSC is characterized by the formation of multiple hamartomas in nearly all organs. SMA is a destructive neurological disorder leading to progressive muscular weakness and atrophy. Case Presentation</e...

2014
Rui Lan Zhang Michael Chopp Cynthia Roberts Xianshuang Liu Min Wei Siamak P. Nejad-Davarani Xinli Wang Zheng Gang Zhang

The unique cellular and vascular architecture of the adult ventricular-subventricular zone (V/SVZ) neurogenic niche plays an important role in regulating neural stem cell function. However, the in vivo identification of neural stem cells and their relationship to blood vessels within this niche in response to stroke remain largely unknown. Using whole-mount preparation of the lateral ventricle ...

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