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Studies were undertaken to determine whether neurons of the subplate layer represent a transient or stable population of cells in developing neocortex of rat. The first set of studies sought to determine the fraction of subplate neurons that is lost during early postnatal development. The optical dissector method was used to analyze fluorescently stained(More)
Migration of neurons and formation of laminae in the developing neocortex were studied by means of thymidine autoradiography. Timed pregnant rats received a single pulse injection of [3H]thymidine in the morning of embryonic day (E)13, 14, 15, 16, 17, 18 or 19. Pups were killed on postnatal day (P)0, 1, 2, 3, 4, 6, 10, 30, or 60 and brains were processed(More)
Experiments tested the hypothesis that acetylcholinesterase (AChE) activity, expressed transiently in developing thalamocortical projections, serves to limit the growth of basal forebrain cholinergic projections into thalamocortical recipient zones. Newborn rats were subjected to enucleation, a procedure that eliminates transient AChE activity in developing(More)
118 consecutive patients with TGA were examined for neurologic disorders (ND) and cerebral lesions (CL) between 1967--1979 of whom 43 are alive. 66 had simple TGA, 52 had VSD, PS and/or coarctation as additional lesion.--43 were corrected surgically of whom 32 are alive.--Neurologic examination was performed in all, EEG, CT, arteriography, scintigraphy and(More)
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