[The mass transfer features differentiation in intestinal villi in morphogenetic process].
The aim of this study was to investigate mass transfer features differentiation in intestinal villi in process of morphogenesis. The trial was carried out on 28 newborn white rats (weight 40-60 g) and on 24 adult rats (weight 190-220 g). There was used the method of scanning electron microscopy. It has been shown, that after the first nursing the amount of lipids sharply rises in intestinal villi. From the 7th day of life, there was reliable apical- basic gradient of lipids content in interstitium of intestinal villi. Lipids are absorbed and deported by the base of villi, from where they are sucked gradually by the initial lymphatics. However, the results confront with comparative data of lipid mass discrete density in interstitial tissue has shown resembling indices on all length of villi. Consequently, the point is, that with the age the width of villi base is getting larger, where the large amount of lipids may be located.
Kiteishvili
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D000818:Animals; D000831:Animals, Newborn; D004068:Digestive System Physiological Phenomena; D005260:Female; D007413:Intestinal Mucosa / Q000166:cytology / Q000502:physiology*; D008297:Male; D051381:Rats