[Labelled 35S-thiamine distribution and secretion in the digestive system of rats of different ages].
The labelled thiamin, administered intravenously, was accumulated mainly in liver tissue and small intestinal wall of 24 months old rats as compared with 3 months old rats. Secretion of metabolites of the labelled thiamin was distinctly decreased in the stomach of old animals. A decrease in secretion and reabsorption of metabolites of the administered thiamin in stomach might be a response to inhibition of the liver-intestinal circulation of thiamin as well as to its transport-metabolic turnover in tissues of the gastro-intestinal tract.
D000375:Aging; D000818:Animals; D004064:Digestive System / Q000378:metabolism*; D008297:Male; D051381:Rats; D012621:Seasons; D013462:Sulfur Radioisotopes; D013831:Thiamine / Q000378:metabolism*; D013997:Time Factors; D014018:Tissue Distribution
D013462:Sulfur Radioisotopes; D013831:Thiamine
Raspredelenie i sekretsiia mechennogo 35S-tiamina v pishchevaritel'noĭ sisteme krys raznogo vozrasta.