FN Archimer Export Format PT C TI Quelques aspects de la regulation du systeme neuroendocrine produisant la CHH et de la relation entre le rythme circadien et la glycemie OT Some observations about the neuroendocrine system regulation producing CHH (Crustacean Hyperglycemic Hormone) and the relation between glycemia and circadian rhythm BT AF KALLEN, J AS 1:; FF 1:; UR https://archimer.ifremer.fr/doc/1987/acte-1383.pdf LA French DT Proceedings paper DE ;Orconectes limosus;Astacus leptodactylus;Malacostraca;Cytochemistry;Hormones;Neurotransmitters;Circadian rhythms;Glucose AB In crayfish, the hemolymph glucose level shows an endogenous circadian rhythmicity which is expressed by a nocturnal glucose rise. This study shows that injections of serotonin and dopamine result in hyperglycemia and that injections of met-enkephalin decrease hemolymph glucose level as well as the nocturnal circadian glucose peak. Using immunocytochemistry, these neurotransmitters have been located in the eyestalk and their relationship with the CHH cell system is described. PY 1987 PD JUL CT Actes de colloques. Ifremer. Brest [ACTES COLLOQ. IFREMER.]. 1988 ID 1383 ER EF