T Iu Kvitnitskaia-Ryzhova

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The radioimmunological analysis revealed an increase in the concentration of arginine vasopressin in the cerebrospinal fluid of rats during aging. This correlated with the results of karyometry of neurosecretory neurons of the supraoptic nucleus of the hypothalamus which showed an increase in the size of their nuclei. Under conditions of water deprivation(More)
Ultrastructure of neuronal and glial nuclei has been studied in various parts of the CNS, in parenchymatous cells of internal organs, in endotheliocytes and pericytes of their blood capillaries in intact rats--mature (6-8-month-old) and old (26-28-month-old), as well as at certain experimental influences. In all the cellular populations studied (most often(More)
The results of the light-, electron microscopic and cytophotometric investigation performed in the wall of the third cerebral ventricle are presented. It includes the ciliar, tanycytar ependyma and subependymal layer in male rats of three age groups (immature--1 month, mature--8-10 months and old--24-26 months of age). A certain decrease in the arrangement(More)
The latest current literature is reviewed on the dark cells of the brain and internal organs of animals and man. The following questions are considered: shrinked and picnomorphic neurons; dark neurons and glyocytes--structure and function; and perspectives of research into the problem of dark cells. A conclusion has been made that in most cases dark cells(More)
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