title: The effect of temperature on immunoreactive glucagon plasma level in carp Cyprinus carpio.
abstract: Plasma immunoreactive glucagon levels (IRG), plasma glucose levels and brain and liver glycogen concentrations were analyzed in carp (adapted to 15 degrees C) subjected to short-term temperature changes (1.6 or 11 h, at 5 degrees C or 28 degrees C, respectively) and to long-term temperature changes (21 months at 28 degrees C). The high temperature (28 degrees C) produced significant increases in IRG in both short and long-term experiments. Brain glycogen also decreased in both experiments whereas liver glycogen only changed in the long-term experiment. Low temperatures did not provoke any changes either in IRG or in liver glycogen, whereas brain glycogen decreased in the 1 h exposure. In short, under these conditions in carp, IRG did not respond to low temperature but could play an important role in high temperature acclimation.
authors.affiliation: Departamento de Bioquímica y Fisiología, Facultad de Biología, Universidad de Barcelona, Spain.
authors.forename: J
authors.initials: J
authors.lastname: Blasco
authors.forename: J
authors.initials: J
authors.lastname: Gutiérrez
authors.forename: J
authors.initials: J
authors.lastname: Fernández
authors.forename: J
authors.initials: J
authors.lastname: Planas
mesh_terms: D000818:Animals; D001921:Brain / Q000378:metabolism; D002347:Carps / Q000097:blood*; D003530:Cyprinidae / Q000097:blood*; D005934:Glucagon / Q000097:blood*; D005947:Glucose / Q000378:metabolism; D006003:Glycogen / Q000378:metabolism; D008112:Liver Glycogen / Q000378:metabolism; D013696:Temperature
chemical_list: D008112:Liver Glycogen; D006003:Glycogen; D005934:Glucagon; D005947:Glucose