Victoria, C. R.Meneghelli, U. G.2014-05-272014-05-271990-10-01Arquivos de Gastroenterologia, v. 27, n. 4, p. 191-196, 1990.0004-2803http://hdl.handle.net/11449/64006The kinetic of jejunal glucose transport was studied using perfused rat jejunum in vivo. Ninety rats were fed a diet deficient in niacin and 90 a control diet. The jejunal loops of 7 groups of animal were infused each group with one of following solutions of glucose: 5, 10, 20, 40, 80, 160 and 300 mM/l. The Vmax and Km values were determined. The results showed that the vitamin-deficient rats absorbed less glucose independently of the amount infused and these animals had lower Vmax (133.7 microM/15 min/15 cm) and Km (192.1 mM/l) than control groups (294.1 microM/15 min/15 cm and 171.8 mM/l, respectively). In conclusion one can assume that niacin deficiency leads to a decreased glucose absorption in the jejunal loops, when tested as in our experimental model.191-196porglucosenicotinic acidanimalcase reportdrug effectintestine absorptionjejunummalemetabolismnutritional deficiencyperfusionratrat strainAnimalCase ReportEnglish AbstractGlucoseIntestinal AbsorptionJejunumMaleNiacinPerfusionRatsRats, Inbred StrainsArtigoAcesso restrito2-s2.0-17444436103