[Differentiation of endocrinocytes in the small-intestinal epithelium of albino rats in ontogenesis].
By means of the light microscopy method differentiation and dynamics on contents of endocrinocytes have been studied in epithelium of the initial part of the jejunum, of the caudal part of the ileum and of the middle part between them during pre- and postnatal periods of development. Formation of the endocrine apparatus of the mucous membrane epithelium in the small intestine takes place simultaneously with tissue differentiation of the epithelial layer. The population density of endotheliocytes of the mucous membrane is maximal in the initial part of the jejunum and decreases gradually in the caudal direction. By the 15th day of the postnatal development endocrinocytes in composition of the epithelium in the small intestine reach a high level of the specific differentiation and their amount increases by 1.3 times in comparison with that in newborn animals.
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Matveeva
D001078:APUD Cells / Q000166:cytology*; D000367:Age Factors; D000375:Aging; D000818:Animals; D000831:Animals, Newborn / Q000033:anatomy & histology*; D002452:Cell Count; D002454:Cell Differentiation / Q000502:physiology; D004622:Embryo, Mammalian / Q000166:cytology*; D004847:Epithelial Cells; D005333:Fetus / Q000166:cytology*; D007082:Ileum / Q000166:cytology*; D007583:Jejunum / Q000166:cytology*; D051381:Rats
Differentsirovka éndokrinotsitov v épitelii tonkoĭ kishki beloĭ krysy v ontogeneze.