Urogenital paraneurons in several mammals.

Archives of Histology and Cytology
A Cecio, Alfredo Vittoria

Abstract

Amines and/or peptide-producing cells, deserving to be called paraneurons, were demonstrated in the urethro-prostatic complex of the man, rabbit, buffalo and sheep and in the uterine horns of the pig, horse and mouse, by means of histochemical, immunohistochemical, immunofluorescent and double labeling immunofluorescent techniques. In particular, the urethro-prostatic complex of the sheep contains cells producing serotonin, chromogranin A and somatostatin. Often the amine and the "marker"-protein were colocalized in the same cells. Chromogranin A- and somatostatin-containing cells were found in the uterine horns of the pig. Serotonin probably plays a role in the contraction/relaxation of the musculature of the male urogenital tract, thus regulating the urinary and spermatic flow. The function of somatostatin cells in the urogenital tract is unknown. The presence and direction of their cytoplasmic processes lead us to hypothesize a double endocrine/paracrine modality of action.

Citations

Mar 1, 1993·Cell and Tissue Research·M S DavidoffA F Holstein
Nov 17, 2009·Human Reproduction·Guoyun WangIan S Fraser
Jul 13, 2007·Micron : the International Research and Review Journal for Microscopy·P F F PinheiroF E Martinez
Oct 1, 1993·Bioscience Reports·A CecioA Vittoria

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