Segment-specific decrease of both catecholamine concentration and acetylcholinesterase activity are accompanied by nerve refinement in the rat cauda epididymis during sexual maturation.
@article{Silva2002SegmentspecificDO, title={Segment-specific decrease of both catecholamine concentration and acetylcholinesterase activity are accompanied by nerve refinement in the rat cauda epididymis during sexual maturation.}, author={Adilson M. Silva and Daniel B C Queir{\'o}z and Eduardo F Castro Neto and Maria da Graça Naffah-Mazzacoratti and Rosely Oliveira Godinho and Catarina Segreti Porto and Gabriel Guti{\'e}rrez-Ospina and Maria Christina W. Avellar}, journal={Journal of andrology}, year={2002}, volume={23 3}, pages={ 374-83 }, url={https://api.semanticscholar.org/CorpusID:7939851} }
Segment-specific variations in noradrenaline concentration and AChE activity during epididymal sexual maturation are documented and suggest that such variations result, at least in part, from the refinement of the autonomic innervation pattern with age.
8 Citations
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The organs studied were innervated unevenly and the highest density of the nerves was found in the areas of the tunica albuginea adjacent to the mesorchial border of the testis and their number gradually decreased towards the freeborder of the gonad.
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74 References
Noradrenergic and peptidergic innervation of the testis and epididymis in the male pig.
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Biology, Medicine
The present study has demonstrated for the first time the existence of CGRP, L-ENK and SOM in nerve fibres innervating the testis of a vertebrate species.
α1-Adrenoceptor Subtypes in Rat Epididymis and the Effects of Sexual Maturation1
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Biology, Medicine
Differences in pKi values in caput and cauda epididymis from immature and adult animals suggested that the relative amount of α1-adrenoceptors, at the protein level, is modulated by sexual maturation.
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Biology, Medicine
A marked reduction of noradrenergic and NPY-containing nerves was observed in the vas deferens and sexual accessory glands of rats, chemically sympathectomised by chronic injection of low doses of guanethidine.
Comparative distribution of neuropeptide tyrosine-,vasoactive intestinal polypeptide-, substance P-immunoreactive, acetylcholinesterase-positive and noradrenergic nerves in the reproductive tract of the female rat
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Biology
It is suggested that these nerves may influence hemodynamic events and non-vascular smooth muscle in such functions as transport of sperm and ova and parturition.
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Biology, Medicine
The distribution of cholinergic and adrenergic nerves in the epididymis was studied in the dog, cat, rat and rabbit using specific histochemical techniques for acetylcholinesterase and norepinephrine to find changes in innervation pattern that follow the distalward increase in thickness of the muscular wall of the ductus epidIDymidis.
Day- and night-time contents of monoamines and their metabolites in the medial preoptic area of the rat hypothalamus
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It is suggested that peptide-containing nerves appear in the genital system after birth and reach a full development before the completion of puberty.
Adrenergic innervation of the human testis, epididymis, ductus deferens and prostate: a fluorescence microscopic and fluorimetric study
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Medicine
The finding of fluorescent ganglion cells in the prostate indicated that part — if not all — of the male genital tract also in humans is innervated by way of so-called short adrenergic neurons, originating in peripherally located sympathetic ganglia.
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Biology, Medicine
The existence of an as yet unknown testicular catecholaminergic neuronlike cell type in the human testis is shown and the increase of both "intrinsic" (neuronal cells) and "extrinsics" (nerve fibers) neuronal elements in pathological testicular biopsies suggests that the two parts of the humantesticular nervous system may be involved in pathogenesis and/or maintenance of GA and SCO syndromes.