PMID- 8329351 OWN - NLM STAT- MEDLINE DCOM- 19930819 LR - 20190719 IS - 0007-1145 (Print) IS - 0007-1145 (Linking) VI - 69 IP - 3 DP - 1993 May TI - 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. PG - 757-66 AB - 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. FAU - Tin-Aung AU - Tin-Aung FAU - Khin-Maung-U AU - Khin-Maung-U FAU - Wai-Wai-Than AU - Wai-Wai-Than FAU - Thida-Aung AU - Thida-Aung LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Br J Nutr JT - The British journal of nutrition JID - 0372547 RN - 0 (Amino Acids) RN - 0 (Bacterial Toxins) RN - 0 (Enterotoxins) RN - 0 (Escherichia coli Proteins) RN - 0 (heat stable toxin (E coli)) SB - IM MH - Amino Acids/*metabolism MH - Animals MH - Animals, Suckling/*metabolism MH - Bacterial Toxins/*pharmacology MH - Culture Techniques MH - Diarrhea/*metabolism MH - Disease Models, Animal MH - Enterotoxins/*pharmacology MH - Escherichia coli Proteins MH - Intestinal Absorption/*drug effects MH - Intestine, Small/*metabolism MH - Rats MH - Rats, Wistar MH - Time Factors MH - Water-Electrolyte Balance/*drug effects EDAT- 1993/05/01 00:00 MHDA- 1993/05/01 00:01 CRDT- 1993/05/01 00:00 PHST- 1993/05/01 00:00 [pubmed] PHST- 1993/05/01 00:01 [medline] PHST- 1993/05/01 00:00 [entrez] AID - 10.1079/bjn19930076 [doi] PST - ppublish SO - Br J Nutr. 1993 May;69(3):757-66. doi: 10.1079/bjn19930076.