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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Hormone mediated changes in monoamine stores and regulation of enzymes of biosynthesis and metabolism in the rat adrenal gland. Influence of progesterone, estradiol, ACTH and testosterone administration.

The influence of daily injections, for 7 days, of 17-hydroxyprogesterone caproate (8 mg/100 g body weight pro die), of estradiol-17 beta 17-undecylate (1.2 mg/100 g body weight pro die) of testosterone enanthate (2 mg/100 g body weight pro die) and of ACTH (4 IU/100 g body weight pro die) to male Wistar rats, weighing 200 g, were investigated. Monamine storage and regulation of enzymes phenylethanolamine N-methyl transferase (PNMT), monoamine oxidase (MAO) and catechol-O-methyl transferase (COMT) were studied in the adrenal glands. Results from testosterone treated rats were especially significant : the hormone administration decreased the stores of dopamine and norepinephrine (epinephrine precursors), stimulated PNMT and decreased metabolism of epinephrine by MAO and COMT. However, the adrenal content of epinephrine remained in the normal range. These findings suggest that uptake of epinephrine is accelerated in peripheral tissues by testosterone.[1]

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