PMID- 6398008 OWN - NLM STAT- MEDLINE DCOM- 19850501 LR - 20211216 IS - 0300-5410 (Print) IS - 0300-5410 (Linking) VI - 135B IP - 3 DP - 1984 Nov-Dec TI - [Method for the detection and determination of heat-labile Escherichia coli enterotoxin by an immunoenzyme technic on a new polystyrene support adapted for a test kit]. PG - 297-310 AB - An ELISA method on microtitration plates to detect and assay Escherichia coli heat-labile enterotoxin (LT) is described. This technique is rapid and simple to perform in any laboratory. It allows detection of the presence of LT with the naked eye within 10 h in a 12-h E. coli culture supernatant. The reaction is based on immunological cross-reaction between LT and the Vibrio cholerae toxin (CT). In place of traditional microtitration plates coated with ganglioside Gm1, we propose a new polystyrene support coated with purified anti-CT antibodies. This coated support has been conditioned in a kit to be used in laboratories in bush dispensaries of endemic areas. It was tested with 40 enterotoxigenic (LT+) strains isolated from stools of diarrhoeal children and with 14 LT- strains. All supernatants LT+ and LT- were found positive and negative, respectively, with the ELISA method and with the new polystyrene support. Field tests (in Wallis, Futuna et Vanuatu) with the new kit and standard method were satisfactory. FAU - Germani, Y AU - Germani Y FAU - Begaud, E AU - Begaud E FAU - Dassy, B AU - Dassy B FAU - Legonidec, G AU - Legonidec G FAU - Guesdon, J L AU - Guesdon JL LA - fre PT - Journal Article TT - Methode de detection et de dosage de l'enterotoxine thermolabile de Escherichia coli par une technique immunoenzymatique sur un nouveau support de polystyrene adapte en trousse autonome. PL - France TA - Ann Microbiol (Paris) JT - Annales de microbiologie JID - 0354704 RN - 0 (Bacterial Toxins) RN - 0 (Enterotoxins) RN - 0 (Escherichia coli Proteins) RN - 0 (Reagent Kits, Diagnostic) RN - 9012-63-9 (Cholera Toxin) RN - D9K3SN2LNY (heat-labile enterotoxin, E coli) SB - IM MH - Bacterial Toxins/*analysis/biosynthesis/immunology MH - Cholera Toxin/immunology MH - Enterotoxins/*analysis/biosynthesis/immunology MH - Enzyme-Linked Immunosorbent Assay MH - *Escherichia coli/metabolism MH - *Escherichia coli Proteins MH - Reagent Kits, Diagnostic EDAT- 1984/11/01 00:00 MHDA- 1984/11/01 00:01 CRDT- 1984/11/01 00:00 PHST- 1984/11/01 00:00 [pubmed] PHST- 1984/11/01 00:01 [medline] PHST- 1984/11/01 00:00 [entrez] PST - ppublish SO - Ann Microbiol (Paris). 1984 Nov-Dec;135B(3):297-310.