The effect of vasotocin on plasma glucose, free fatty acids and growth hormone in the frog, Rana catesbeiana.
Injections of arginine vasotocin into bullfrogs had no effect on plasma glucose after 30 min. but caused hyperplycemia after 120 min. Plasma levels of growth hormone were elevated earlier (30 min.) and returned to control levels after 120 min. Plasma free fatty acids were unaltered following vasotocin administration. It is suggested that the hyperglycemic effect of vasotocin may be mediated via growth hormone.
McKeown
B A
BA
Department of Biological Sciences, Simon Fraser University, Burnaby, BC, Canada.
John
T M
TM
George
J C
JC
D000818:Animals; D001786:Blood Glucose / Q000187:drug effects / Q000378:metabolism*; D005230:Fatty Acids, Nonesterified / Q000097:blood*; D013006:Growth Hormone / Q000097:blood*; D006400:Hematocrit; D006943:Hyperglycemia / Q000139:chemically induced; D011892:Rana catesbeiana; D014668:Vasotocin / Q000494:pharmacology*
D001786:Blood Glucose; D005230:Fatty Acids, Nonesterified; D013006:Growth Hormone; D014668:Vasotocin