title: [Role of Ca2+ in regulating the serotonin-dependent synapse between P and R-cells of leech segmented ganglion].
abstract: Changes in the membrane-associated Ca2+ concentration and viscosity of the plasmatic membrane of P- and R-cells segmented ganglia of medicinal leech upon a variation of extracellular serotonin concentration were investigated. It is shown that the transmission of rhythmic excitation from P- to R-cells is due to the formation of the serotonin-dependent synapse and affects the distribution of the membrane-associated Ca2+ and intracellular processes controlling the viscosity of the membrane.
authors.affiliation: Lomonosov Moscow State University, Russia.
authors.forename: G V
authors.initials: GV
authors.lastname: Maksimov
authors.forename: Sh
authors.initials: Sh
authors.lastname: Chatterdzhi
authors.forename: A L
authors.initials: AL
authors.lastname: Kleinhaus
authors.forename: A B
authors.initials: AB
authors.lastname: Rubin
mesh_terms: D000818:Animals; D002118:Calcium / Q000378:metabolism*; D002462:Cell Membrane / Q000378:metabolism; D005453:Fluorescence; D005724:Ganglia / Q000166:cytology / Q000378:metabolism*; D007865:Leeches; D008564:Membrane Potentials; D012701:Serotonin / Q000378:metabolism*
chemical_list: D012701:Serotonin; D002118:Calcium