Publication: Characteristics of distribution of peptide-containing
nerve fibres in the atrioventricular valves of the rat
Authors
Tsumori, T. ; Domoto, T. ; Yasui, Y.
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Publisher
Murcia : F. Hernández
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DOI
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info:eu-repo/semantics/article
Description
Abstract
The distribution of vasoactive intestinal
polypeptide-, neuropeptide Y-, and calcitonin generelated
peptide-irnrnunoreactive nerve fibres was
investigated in the atrioventricular valves of the rat.
These nerve fibres were visualized by imrnunostaining
of whole-mount preparations by the avidin-biotinperoxidase
cornplex method. Vasoactive intestinal
polypeptide-irnmunoreactive nerve fibres were observed
mainly in the anterior cusp of the mitral valve and, to a
lesser extent, in the media1 cusp of the tricuspid valve.
Numerous neuropeptide Y-immunoreactive nerve fibres
were found covering al1 of the cusps. Both types of
peptidergic nerve fibre formed dense networks that
consisted of interlacing and anastomosing nerve fibres.
Calcitonin gene-related peptide-imrnunoreactive nerve
fibres were seen in every cusp, but did not fom a fine
network. These results provide detailed anatomical
information for evaluation of the possible roles of each
type of peptide-containing nerve fibre in the function of
atrioventricular valves.
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