title: [Cytophotometric and electrophysiologic analysis of the role of the celiac plexus in maintaining temperature homeostasis in cold stress in rats].
abstract: The role of the celiac plexus in maintaining temperature homeostasis in rats during cold stress was studied histochemically, ultrastructurally, and electrophysiologically. Inhibition on efferent impulses in preganglionic (splanchnic) nerves and facilitation in postganglionic (superior mesenteric) nerves during a short-term cold exposure leading to slight hypothermia were found. In cold-exposed animals after the celiac plexus decentralization, the neurons showed an increase in the fluorescence intensity and activity of energy metabolism enzymes, hyperplasia of fine structures responsible for protein synthesis and energy supply of cells. It is suggested that during cold stress when efferent impulse flow in preganglionic nerves markedly decreases, the celiac plexus becomes a regulatory centre for autonomic functions involved in the maintenance of temperature homeostasis.
authors.forename: V I
authors.initials: VI
authors.lastname: Lapsha
authors.forename: T A
authors.initials: TA
authors.lastname: Petruchuk
mesh_terms: D000818:Animals; D001833:Body Temperature Regulation / Q000502:physiology*; D002395:Catecholamines / Q000378:metabolism; D002447:Celiac Plexus / Q000502:physiology*; D003080:Cold Temperature; D003592:Cytophotometry; D004525:Efferent Pathways / Q000502:physiology; D004734:Energy Metabolism / Q000502:physiology; D006651:Histocytochemistry; D006706:Homeostasis / Q000502:physiology; D007770:L-Lactate Dehydrogenase / Q000378:metabolism; D008297:Male; D009474:Neurons / Q000502:physiology / Q000648:ultrastructure; D051381:Rats; D017208:Rats, Wistar; D013312:Stress, Physiological / Q000503:physiopathology*; D013385:Succinate Dehydrogenase / Q000378:metabolism
chemical_list: D002395:Catecholamines; D007770:L-Lactate Dehydrogenase; D013385:Succinate Dehydrogenase
vernacular_title: Tsitofotometricheskiĭ i élektrofiziologicheskiĭ analiz roli chrevnogo spleteniia v podderzhanii temperaturnogo gomeostaza pri kholodovom stresse u krys.