نتایج جستجو برای: ventricular zone
تعداد نتایج: 264210 فیلتر نتایج به سال:
The rostral migratory stream (RMS) is the main pathway by which newly born subventricular zone cells reach the olfactory bulb (OB) in rodents. However, the RMS in the adult human brain has been elusive. We demonstrate the presence of a human RMS, which is unexpectedly organized around a lateral ventricular extension reaching the OB, and illustrate the neuroblasts in it. The RMS ensheathing the ...
Radial glial proliferation is a critical step in the construction of cerebral cortex. In this issue of Neuron, Weissman and colleagues use time-lapse calcium imaging techniques to demonstrate that spontaneous calcium waves sweeping through cohorts of radial glia in the ventricular zone can modulate their proliferation during cerebral cortical development.
Background: Hypertension is considered as the silent killer of human because hypertensive patient may be not aware that he has hypertension and death can occur at any time without reason being known. We aim to study effect gray zone [SBP from 120-139] or [DBP 80-89] which was classified prehypertension under JNC-7 on structure, geometry, operation left ventricle using echocardiography
 Met...
A brief survey of cortical development is presented, focusing on neuronal migration and its alterations. Corticogenesis is achieved through ordered temporospatial steps, via the formation of transient structures, and successive waves of cell proliferation and migration (followed by cell differentiation and maturation), and apoptotic cell death. The appearance of the proliferative ventricular zo...
During development of the elegantly structured mammalian cerebral cortex, generation and subsequent migration of specialized neurons and glia within the brain follows a characteristic sequence. The earliest differentiated neurons emigrate from the telencephalic ventricular zone to form a superficial primordial layer called the preplate (Allendoerfer and Shatz, 1994). In mice, the marginal zone ...
We recorded 60 DC simultaneous electrograms from isolated porcine and canine hearts in the first minutes after coronary occlusion. Ventricular premature beats (VPB) originated from the normal side of the ischemic border, which was frequently separated from the central ischemic area showing delayed activity by a small zone of inexcitable tissue. We attempted in a computer model to generate VPB's...
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