title: Distribution of immunoreactive vasotocin and mesotocin in the chicken gastrointestinal tract.
abstract: Immunoreactive arginine vasotocin (AVT) and mesotocin (MT) were measured in heart, breast muscle, adrenals, testes, and different parts of the gastrointestinal tract in adult male chickens. Neither of the peptides were detected in liver, testis, heart and breast muscle. The amounts of AVT and MT in the adrenals were 167 +/- 25 and 669 +/- 198 pg/gland, respectively. Considerable amounts of immunoreactive peptides were found in the gastrointestinal tract with the highest concentration in the proventriculus (4.18 +/- 0.31 ng AVT and 16.58 +/- 0.86 ng MT per organ). Dose-response curves of duodenal and proventriculus extracts were parallel with synthetic AVT and MT standards.
authors.affiliation: Department of Physiology and Biophysics, University of Arkansas for Medical Science, Little Rock 72205.
authors.forename: B
authors.initials: B
authors.lastname: Robinzon
authors.forename: T I
authors.initials: TI
authors.lastname: Koike
authors.forename: H L
authors.initials: HL
authors.lastname: Neldon
authors.forename: S L
authors.initials: SL
authors.lastname: Kinzler
mesh_terms: D000818:Animals; D002645:Chickens / Q000276:immunology*; D004064:Digestive System / Q000032:analysis* / Q000276:immunology; D008297:Male; D010121:Oxytocin / Q000031:analogs & derivatives* / Q000032:analysis / Q000276:immunology; D011863:Radioimmunoassay; D014018:Tissue Distribution; D014668:Vasotocin / Q000032:analysis* / Q000276:immunology
chemical_list: C001713:mesotocin; D010121:Oxytocin; D014668:Vasotocin