Histochemical Demonstration of Catecholamines in the Toad Sympathetic Ganglia

Honma, Shinji

doi:10.2170/jjphysiol.20.186

Cited by 11 publications

(1 citation statement)

References 16 publications

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“…Cardiac ganglion cells innervating heart muscle release ACh (Loewi and Navratil, 19261, as is typical of parasympathetic cells. The lumbar sympathetic ganglion is composed of cells that release the catecholamine norepinephrine ( Azuma, Binia, and Visscher, 1965) onto blood vessels in the hindlimbs and glands in the skin (Honma, 1970). Although principal neurons in the cardiac ganglion and the lumbar ganglia are considered cholinergic and adrenergic, respectively, they both respond to ACh (Nishi.…”

Section: Introductionmentioning

confidence: 99%

Differential effects of denervation on acetylcholinesterase activity in parasympathetic and sympathetic ganglia of the frog, Rana pipiens

Streichert

Sargent

1990

J. Neurobiol.

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The transsynaptic regulation of acetylcholinesterase (AChE) was studied by recording the changes in enzymatic activity following denervation in two types of autonomic ganglia in the frog, Rana pipiens. Opposite effects on AChE were found in the parasympathetic cardiac ganglion and in the sympathetic lumbar ganglion; denervation produced a significant increase in AChE activity in cardiac ganglia but a significant decrease in lumbar ganglia. The relative effects of denervation on intracellular and total AChE were examined by selectively inhibiting extracellular AChE with echothiophate, a poorly lipid-soluble cholinesterase inhibitor. Denervation resulted in a significant increase in intracellular AChE in cholinergic cardiac ganglia but had no effect on intracellular AChE activity in adrenergic lumbar ganglia. Histochemical studies revealed little change in extracellular AChE staining upon denervation in the cardiac ganglion, whereas in the lumbar ganglia there was a loss of AChE-specific reaction product. These results raise the possibility that the transsynaptic control of AChE activity by innervation in the frog is influenced by the transmitter synthetic properties of the postsynaptic ganglion cells.

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Section: Introductionmentioning

confidence: 99%

Differential effects of denervation on acetylcholinesterase activity in parasympathetic and sympathetic ganglia of the frog, Rana pipiens

Streichert

Sargent

1990

J. Neurobiol.

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?SIF? cells in the sympathetic ganglia of the bullfrog, Rana catesbeiana: variety in population and innervation

Watanabe

Tonosaki

1986

Cell Tissue Res.

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Distribution and morphology of amphibian extra-adrenal chromaffin tissue

1975

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1. The distribution and morphology of chromaffin cells in the para-aortic region and in the ganglia of the paravertebral sympathetic chain was studied with fluorescence histochemistry and electron microscopy. 2. Four types of chromaffin cell were distinguished largely on the basis of their vesicular content: Type I cells contain large, electron-dense vesicles (600-7000 A) and are comparable to noradrenaline-containing cells in the adrenal gland, Type II cells contain large, vesicles (600-7000 A) that are filled with a less electron-dense material than that in Type I cells and are comparable to adrenaline-containing cells in the adrenal gland, Type III cells contain smaller vesicles (1000-3000 A) that are incompletely filled with an electron-dense material and may represent cells that have been depleted of their catecholamines by stimulation, Type IV cells are clearly different from the other three cell types with respect to the size and appearance of the vesicles (1000-1500 A), nuclei and rough endoplasmic reticulum and may represent immature sympathetic neurons. 3. Nerve profiles, identified as cholinergic, were found in close apposition with all four cell types. No examples of a close association between processes of chromaffin cells and sympathetic neurons were found.

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Histochemical Demonstration of Catecholamines in the Toad Sympathetic Ganglia

Cited by 11 publications

References 16 publications

Differential effects of denervation on acetylcholinesterase activity in parasympathetic and sympathetic ganglia of the frog, Rana pipiens

Differential effects of denervation on acetylcholinesterase activity in parasympathetic and sympathetic ganglia of the frog, Rana pipiens

?SIF? cells in the sympathetic ganglia of the bullfrog, Rana catesbeiana: variety in population and innervation

Distribution and morphology of amphibian extra-adrenal chromaffin tissue

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