title: The paraganglia, a persisting endocrine system in man.
abstract: The paraganglia have been traced in surgical samples of para-aortic and pelvic retroperitoneal tissues using the formal-dehyde-induced fluorescence method for catecholamines. Clusters of catecholamine-storing cells were found in all (12) patients studied. Microspectrofluorometric recordings showed high amounts of catecholamine in the well-vascularized cell groups. A large proportion of the paraganglia, which are most prominent during the fetal period, also persist during postnatal life.
mesh_terms: D000328:Adult; D000368:Aged; D002395:Catecholamines / Q000378:metabolism; D002838:Chromaffin System / Q000166:cytology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010233:Paraganglia, Chromaffin / Q000166:cytology* / Q000378:metabolism
chemical_list: D002395:Catecholamines