Dehydrogenase and oxoreductase activities of porcine placental 11β-hydroxysteroid dehydrogenase

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Dehydrogenase and oxoreductase activities of porcine placental 11beta-hydroxysteroid dehydrogenase.

Dehydrogenase (cortisol to cortisone) and oxoreductase (cortisone to cortisol) activities of porcine placental 11beta-hydroxysteroid dehydrogenase (11beta-HSD) were measured in tissue fragment cultures on day 75 of gestation. Dehydrogenase activity was over fivefold greater than oxoreductase activity (p < .001). There were positive linear associations (p < .01) between net dehydrogenase activit...

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11β-Hydroxysteroid Dehydrogenase-2 and Salt-Sensitive Hypertension.

1335 Glucocorticoid intracellular metabolism, catalyzed by the 2 isozymes of 11β-hydroxysteroid dehydrogenase (11βHSD), determines the corticosteroid action on target tissues. 11β-HSD1 functions as a reductase in most cells and catalyzes the regeneration of active glucocorticoids, thereby amplifying their action. This isozyme is widely expressed in liver, adipose tissue, muscle, pancreatic isle...

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11β-hydroxysteroid dehydrogenase type 1, brain atrophy and cognitive decline.

Excess cortisol levels are linked with brain atrophy and cognitive decline in older people. 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1) potently amplifies intracellular glucocorticoid action by converting inert cortisone to active cortisol, but any causal importance in brain aging is unexplored. We tested the hypotheses that higher systemic 11β-HSD1 activity predicts brain atrophy and co...

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11β-Hydroxysteroid Dehydrogenase Type 1 and the Metabolic Syndrome

In the past few years, efforts are being made to unravel the mechanisms endowed with the metabolic disturbances associated with obesity that predispose to the metabolic syndrome (MetSyn). The special pathogenic role of liver and visceral adipose tissue (VAT) functions has been particularly intriguing, and many hypotheses have been advanced to explain this association. Tissue-specific actions of...

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Zearalenone Inhibits Rat and Human 11β-Hydroxysteroid Dehydrogenase Type 2

Zearalenone is a mycotoxin produced by Fusarium spp. 11β-Hydroxysteroid dehydrogenases, isoforms 1 (HSD11B1) and 2 (HSD11B2), have been demonstrated to be the regulators of the local level of active glucocorticoid, which has a broad range of physiological actions. In the present study, the potency of zearalenone was tested for the inhibition of HSD11B1 and HSD11B2 in rat and human tissues. Zear...

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ژورنال

عنوان ژورنال: Life Sciences

سال: 2000

ISSN: 0024-3205

DOI: 10.1016/s0024-3205(99)00669-4