Effects of lighting on epinephrine synthesis in the rat


Female rats were maintained in continuous light or darkness or in cyclic illumination (i. e., twelve hours of light per day) for four weeks. Their adrenal medullae and brains were then assayed for catecholamine content and for the activity of the epinephrine-forming enzyme phenylethanolamine-N-methyl-transferase (PNMT). Continuous exposure to either light… (More)
DOI: 10.1007/BF02323406

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