Abstract
Transmission in sympathetic ganglia is complex; in addition to the fast excitatory postsynaptic potential (f-epsp) which represents a primary synaptic pathway of the ganglia, there are several slow synaptic potentials, both excitatory and inhibitory that may serve to modulate the primary transmission; these include slow excitatory and late slow excitatory postsynaptic potentials (s-epsp and ls-epsp respectively) and slow inhibitory postsynaptic potential (s-ipsp) (3,14,18,19,23). Ganglionic transmission is also a multitransmitter phenomenon. There is now evidence that in addition to the classical transmitter, acetylcholine (ACh), a number of other substances may serve as transmitters or modulators in the ganglia. In recent years, immunohistofluorescent techniques have demonstrated the presence of various peptides, such as substance P or a related peptide, and enkephalins or enkephalin-like substances, in peripheral media (cf. 28). We present here some of our findings indicating that substance P and enkephalins may indeed participate in ganglionic transmission.
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© 1981 Plenum Press, New York
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Dun, N.J., Karczmar, A.G. (1981). Multiple Mechanisms in Ganglionic Transmission. In: Pepeu, G., Ladinsky, H. (eds) Cholinergic Mechanisms. Advances in Behavioral Biology, vol 25. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-8643-8_9
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DOI: https://doi.org/10.1007/978-1-4684-8643-8_9
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