title: Influence of electrical stimulation and deprivation on the electric organ discharge behaviour and metabolism of neuronal gangliosides of the tapirfish (Gnathonemus petersi, Mormyridae, Teleostei).
abstract: The influence of electrical stimulation ("attack"-frequency of 40 Hz, 2 V, 2 days) and of social and electrical deprivation on the metabolism of gangliosides of various brain structures and the electric organ of the weakly electric tapirfish (Gnathonemus petersi, Mormyridae) was investigated. After stimulation the daily average discharges of the electric organ increased from 9.4 to 11.1 Hz, whereas after deprivation they decreased to 7.9 Hz as compared with controls. There were significant and structure specific differences in some ganglioside-fractions (GM1, GD3, GD1a, GD1b and GP1) in concentration and in specific radioactive NeuAc-labelling between stimulated and deprived animals respectively, compared with controls.
mesh_terms: D000818:Animals; D001522:Behavior, Animal; D001921:Brain / Q000378:metabolism; D004557:Electric Organ / Q000502:physiology*; D004558:Electric Stimulation; D004594:Electrophysiology; D005399:Fishes / Q000502:physiology*; D005732:Gangliosides / Q000378:metabolism*; D006595:Hexosamines / Q000378:metabolism; D009474:Neurons / Q000378:metabolism; D012934:Social Isolation
chemical_list: D005732:Gangliosides; D006595:Hexosamines; C002022:N-acetylmannosamine