Endocrine Abstracts

Background/aim: Patients with germline mutations in the tumor suppressor PTEN frequently develop single or multiple lipomas. PTEN antagonizes the phosphatidylinositide3-kinase/AKT/mechanistic target of rapamycin (PI3K/AKT/mTOR) pathway, which promotes cell proliferation and is involved in adipocyte differentiation. The aim of this study was to investigate the mechanisms leading to aberrant adipose tissue growth using PTEN knock-down cell models....

11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1) is an NADPH-dependant oxo-reductase located in the sarcoplasmic reticulum (SR) lumen of skeletal muscle. It generates active glucocorticoids to regulate permissive and adaptive metabolism. Hexose-6-phosphate dehydrogenase (H6PD) interacts with 11β-HSD1 to generate an appropriate NADPH/NADP+ ratio to support activity. H6PD depletion impairs SR NADPH generation triggering 11β-HSD1 to assume glucocorticoid ina...

11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1) is an NADPH-dependant oxo-reductase located in the sarcoplasmic reticulum (SR) lumen of skeletal muscle. It generates active glucocorticoids to regulate permissive and adaptive metabolism. Hexose-6-phosphate dehydrogenase (H6PD) interacts with 11β-HSD1 to generate an appropriate NADPH/NADP+ ratio to support activity. H6PD depletion impairs SR NADPH generation triggering 11β-HSD1 to assume glucocorticoid ina...

Background and Aim: Supplementation with precursors of nicotinamide adenine dinucleotide (NAD), was shown to be beneficial in preventing metabolic dysfunction in mice, which is induced by feeding a high fat diet. We compared the effect of nicotinamide riboside (NR) supplementationon whole-body energy metabolism and mitochondrial function in two widely used diet-induced obesity mouse models.Methods: Mice were fed a high fat diet (HFD, 60% fat) or standard...