Peptidergic inhibition of cholinergic transmission in bullfrog sympathetic ganglia.
نویسندگان
چکیده
منابع مشابه
Slow synaptic transmission in frog sympathetic ganglia.
Bullfrog ganglia contain two classes of neurone, B and C cells, which receive different inputs and exhibit different slow synaptic potentials. B cells, to which most effort has been directed, possess slow and late slow EPSPs. The sEPSP reflects a muscarinic action of acetylcholine released from boutons on B cells, whereas the late sEPSP is caused by a peptide (similar to teleost LHRH) released ...
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A mechanism of the long-term potentiation of transmitter release induced by adrenaline (ALTP) was studied by recording intracellularly the fast excitatory postsynaptic potentials (fast EPSPs). The ALTP was produced during the blockade of K+ channels at the presynaptic terminals by tetraethylammonium (TEA). The synaptic delay, possibly reflecting a relative change in the duration of an action po...
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Synaptic transmission has traditionally been studied at the level of the entire nerve terminal rather than at one of its constituent boutons. Autonomic ganglia provide preparations for recording from individual boutons, as well as for determining the calcium transients necessary for transmitter release at these boutons. The results suggest a new paradigm for synaptic transmission.
متن کاملContinuous repetitive stimuli are more effective than bursts for evoking LHRH release in bullfrog sympathetic ganglia.
Effects of different patterns of presynaptic stimulation upon release of leuteinizing hormone releasing hormone (LHRH) were studied by monitoring LHRH-induced slow currents from individual postsynaptic neurons in bullfrog sympathetic ganglia. LHRH-mediated synaptic currents in ganglionic B and C neurons were recorded by a single-electrode voltage-clamp technique. Using continuous stimulation, r...
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ژورنال
عنوان ژورنال: The Japanese Journal of Physiology
سال: 1988
ISSN: 1881-1396,0021-521X
DOI: 10.2170/jjphysiol.38.643