Journal
STEROIDS
Volume 68, Issue 6, Pages 543-550Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/S0039-128X(03)00084-9
Keywords
adipose tissue; lipolysis; LPL; progesterone; glucocorticoid; cortisol
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Steroid hormones seem to be important for adipose tissue metabolism and accumulation. As progesterone has been suggested to modulate the glucocorticoid effects, the interactions between glucocortioid and progesterone on adipose tissue metabolism were investigated. Forty-eight male Wistar rats were adrenectomized and divided into four groups; controls (treated with vehicle only), dexamethasone treated (10 mug per rat), progesterone treated (5 mg per rat) and the last group received both dexamethasone and progesterone. The dexamethasone-treated group had a significant loss of body weight and smaller intra-abdominal fat depots compared to the control group in addition, dexamethasone increased LPL-activity and increased catecholamine stimulated lipolysis. When progesterone was given concomitantly the dexamethasone effects on adipose tissue mass, LPL-activity and lipolysis were blocked. When given alone progesterone had no influence on body weight, amount of adipose tissue, lipolysis or LPL-activity. These data indicate that progesterone acts as an anti-glucocorticoid in adipose tissue in vivo, thus attenuating the glucocorticoid effect on adipose tissue metabolism. (C) 2003 Elsevier Inc. All rights reserved.
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