alexa 11beta-hydroxysteroid dehydrogenase type 1 mRNA is increased in both visceral and subcutaneous adipose tissue of obese patients.
Diabetes & Endocrinology

Diabetes & Endocrinology

Endocrinology & Metabolic Syndrome

Author(s): Desbriere R, Vuaroqueaux V, Achard V, BoulluCiocca S, Labuhn M,

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Abstract OBJECTIVE: Data from rodents provide evidence for a causal role of 11beta-hydroxysteroid dehydrogenase type 1 (11beta-HSD-1) in the development of obesity and its complications. In humans, 11beta-HSD-1 is increased in subcutaneous adipose tissue (SAT) of obese patients, and higher adipose 11beta-HSD-1 was associated with features of the metabolic syndrome. To date, there is no evidence for an increased expression of 11beta-HSD-1 in human visceral adipose tissue (VAT), although VAT is the major predictor for insulin resistance and the metabolic syndrome. RESEARCH METHODS AND PROCEDURES: 11beta-HSD-1 and hexose-6-phosphate dehydrogenase (the enzyme responsible for the synthesis of nicotinamide adenine dinucleotide phosphate, the cofactor required for 11beta-HSD-1 oxoreductase activity) mRNA levels were measured using real-time quantitative reverse transcriptase-polymerase chain reaction in abdominal SAT and VAT biopsies obtained from 10 normal-weight and 12 obese women. Adiponectin mRNA was used as an internal control. RESULTS: 11beta-HSD-1 mRNA concentrations were significantly increased in both SAT and VAT of obese patients (720\% and 450\% of controls, respectively; p < 0.05) and correlated with hexose-6-phosphate dehydrogenase mRNA levels. The level of VAT 11beta-HSD-1 mRNA correlated with anthropometric parameters: BMI (r = 0.41, p = 0.05), waist circumference (r = 0.44, p = 0.04), abdominal sagittal diameter (r = 0.51, p = 0.02), and percentage fat (r = 0.51, p = 0.02). DISCUSSION: Our results demonstrate for the first time that 11beta-HSD-1 mRNA expression is increased in VAT from obese patients. They strengthen the importance of 11beta-HSD-1 in human obesity and its associated complications and suggest the need of clinical studies with specific 11beta-HSD-1 inhibitors. This article was published in Obesity (Silver Spring) and referenced in Endocrinology & Metabolic Syndrome

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