Summary
Using histochemical methods for G-6-P-DH, NAD-HD, M-DH, S-DH, L-DH and G-DH the author has examined the participation and distribution of these enzymes in Pacinian Corpuscles of male cats. The reactions for G-6-P-DH, L-DH, M-DH and NAD-HD show similarity regarding the intensity and the character of intrareceptoral distribution. The nerve fibre and its ending show the highest activity. Three other zones might be differentiated round them. The first zone situated in close proximity to the axon coincides with the inner core of the Corpuscles and shows higher activity than the others (second and third zones). The activity of the latter ones diminishes towards the periphery of the receptor.
The reaction for S-DH is strongly expressed at the nerve fibre and its ending and weaker at the inner core of the Corpuscles.
The reaction for G-DH is moderately expressed in the inner core whereas the nerve fibre and the outer core show the feeble activity.
The author discusses the obtained results in relation to the necessity of energy and the ways it is obtained for the excitation of the axonal membrane.
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Chouchkov, H. Histochemical demonstration of some dehydrogenases and NAD-H diaphorase in cat Pacinian Corpuscles. Histochemie 17, 368–374 (1969). https://doi.org/10.1007/BF00305460
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DOI: https://doi.org/10.1007/BF00305460