Summary
Surgical specimens of human gastrointestinal mucosa and muscle were incubated in vitro with thiaminethiazole-2-14C. Labelled thiamine uptake was uphill in mucosal tissues and downhill in muscle. Small intestinal mucosa accumulated labelled thiamine in a phosphorylated form, while gastric and colonic mucosa, as well as muscular layers of all gastrointestinal segments studied, did not.
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This work was supported in part by a grant from the Italian Research Council, Rome, Italy.
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Rindi, G., Ferrari, G. Thiamine transport by human intestine in vitro. Experientia 33, 211–213 (1977). https://doi.org/10.1007/BF02124072
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DOI: https://doi.org/10.1007/BF02124072