title: [Electrophysiological study of acamprosate effects on frontal cortical neurons in rats].
abstract: The effect of drug for alcoholism treatment acamprosate (campral) on spontaneous electrical activity of frontal cortical neurons was studied in rats. Acamprosate after acute intraperitoneal administration (600 mg/kg) and microiontophoretic application reduced the frequency of spike activity in about 30 % of cells studied. The agent didn't change the magnitude and form of action potentials. Microiontophoretically applied acamprosate reduced the excitatory responses to ethanol electroosmotically applied to neurons at "small doses" (ejected current < 50 nA) and increased the value of neuronal depression induced by ethanol at the "large doses" (ejected current 50 nA). Effects of acamprosate were dose independent. It is suggested that acamprosate has no interaction with specific postsynaptic receptors and its action is determined by presynaptic mechanisms.
authors.forename: S N
authors.initials: SN
authors.lastname: Kozhechkin
authors.forename: Iu S
authors.initials: IuS
authors.lastname: Mednikova
authors.forename: L G
authors.initials: LG
authors.lastname: Kolik
mesh_terms: D000077443:Acamprosate; D000200:Action Potentials; D000427:Alcohol Deterrents / Q000494:pharmacology*; D000818:Animals; D000431:Ethanol / Q000494:pharmacology; D005625:Frontal Lobe / Q000166:cytology / Q000187:drug effects* / Q000502:physiology; D007274:Injections, Intraperitoneal; D007276:Injections, Intraventricular; D007478:Iontophoresis; D008297:Male; D008839:Microelectrodes; D009474:Neurons / Q000166:cytology / Q000187:drug effects* / Q000502:physiology; D051381:Rats; D017208:Rats, Wistar; D013654:Taurine / Q000031:analogs & derivatives* / Q000494:pharmacology
chemical_list: D000427:Alcohol Deterrents; D013654:Taurine; D000431:Ethanol; D000077443:Acamprosate