Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

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Tin-Aung, n.u.l.l. et al.

The effect of Escherichia coli heat-stable (STA) enterotoxin on in vitro uptake of amino acids by small intestine of sucking rats during fluid accumulation.

In vitro uptake of 14C-labelled amino acids by segments of small intestine was determined in sucking (2-4-d-old) Wistar rats. Intragastric injections of heat-stable (ST) toxin of enterotoxigenic Escherichia coli (ETEC) were given to produce fluid accumulation, defined as a gut weight: carcass weight value of > 0.085. Continued active uptake of the prototypic amino acids, leucine (by active transport system 1 for monoamino monocarboxylic (neutral) amino acids), lysine (by active transport system 2 for dibasic amino acids), and proline (by active transport system 3 for N-substituted amino acids), persisted during the active fluid accumulation response to ETEC ST toxin. The mean Kt and mean Vmax of the amino acid transport systems were similar in control (non-injected) and ST toxin-injected rats. The present study provides a scientific basis for the use of amino acids in oral rehydration solutions utilizing amino acid transport systems which are linked to absorption of Na (and water) so that reduction in diarrhoeal stools can be achieved, and emphasizes the importance of maintaining feeding during acute diarrhoea to prevent development of malnutrition.[1]

References

The effect of Escherichia coli heat-stable (STA) enterotoxin on in vitro uptake of amino acids by small intestine of sucking rats during fluid accumulation. Tin-Aung, n.u.l.l., Khin-Maung-U, n.u.l.l., Wai-Wai-Than, n.u.l.l., Thida-Aung, n.u.l.l. Br. J. Nutr. (1993) [Pubmed]

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