[The dynamics of parameters of interstitial space of small intestinal naps during absorbing process in rat].
There are several works about interstitial space of small intestinal naps in white rats; but there are not discussions about dynamics of parameters of interstitial space of small intestinal naps during absorbing process. The aim of our research was focused on this issue. The trial was carried out on 20 white rats of both sexes. Treisterial method was used for the study of the barrier functions. The macromolecular penetration was studied using reddish peroxidase. The obtained material was studied by electron microscopy. We were measuring the absolute size of nap stroma in series of half-thin slices for the estimation of the interstitial volume modification during absorption. On the electrograms we took in the account the part (the fraction) of the volume, which is composed of extracellular component of the connective tissue. The results of the stereological analyses have shown hat extension of nap stroma is due to the expansion of the interstitial space. That fraction, which falls to than shear of whole volume of the stroma, distinctly estimates the active absorption.
Kiteishvili
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D000818:Animals; D005260:Female; D007408:Intestinal Absorption; D007421:Intestine, Small / Q000502:physiology* / Q000648:ultrastructure*; D008297:Male; D008855:Microscopy, Electron, Scanning; D051381:Rats; D011919:Rats, Inbred Strains