title: Histochemical localization of monoamine oxidase types A and B in the adrenal gland.
abstract: The distribution of monoamine oxidase types A and B within the adrenal gland was studied in several mammals by histochemical methods. Controls showed that the methods were valid. The bovine adrenal medulla contained mostly the B type enzyme, distributed heterogeneously, with some A type associated with endothelium, nerves, and cells surrounding the nerves. The bovine adrenal cortex showed a marked zonation of the two types of monoamine oxidase. The zona glomerulosa contained the B type enzyme and the zona fasciculata and zona reticularis contained the type A enzyme. The adrenal medulla of the dog, cat, and rat demonstrated relatively little enzyme activity and it appeared to be both type A and B. The adrenal cortex of these animals appeared to contain mostly the B type enzyme, except the canine zona reticularis, which contained some A type monoamine oxidase as well.
mesh_terms: D000302:Adrenal Cortex / Q000201:enzymology; D000311:Adrenal Glands / Q000033:anatomy & histology / Q000201:enzymology*; D000313:Adrenal Medulla / Q000201:enzymology; D000818:Animals; D002415:Cats; D002417:Cattle; D003010:Clorgyline; D004285:Dogs; D006651:Histocytochemistry; D008995:Monoamine Oxidase / Q000032:analysis* / Q000145:classification; D010293:Pargyline; D010627:Phenethylamines; D051381:Rats; D012642:Selegiline; D012701:Serotonin; D013045:Species Specificity; D013379:Substrate Specificity
chemical_list: D010627:Phenethylamines; D012642:Selegiline; C029261:phenethylamine; D012701:Serotonin; D010293:Pargyline; D008995:Monoamine Oxidase; D003010:Clorgyline