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Σάββατο 16 Φεβρουαρίου 2019

Does increased 11 β HSD‐ 1 activity induce adverse metabolic phenotype only in lean ?

Abstract

We read with interest article by Crowley et al (1). The authors a found an apparent decrease in 11 β HSD‐ 1 expression in subcutaneous adipose tissue (SAT) of deteriorators as compared to improvers. They explained it as compensatory decrease of 11 β HSD‐ 1 activity as consequence of overall adverse metabolic phenotype. It remained speculative whether visceral adipose tissue (VAT) 11 β HSD1 was increased in deteriorators. While this is consistent with recently published study by us (2), in which we found liver/portal circulation 11 β HSD1 activity to be increased in diabetics as compared to controls. However increased 11 β HSD1 activity was not seen in those who had BMI >23 m/kg2 (2). In this regard it will be interesting to know what was 11 β HSD1 expression in subgroup of those with Body Mass Index (BMI) >23 m/kg2 or >25 m/kg2 or >30 m/kg2. It is possible the difference between improvers and deteriorators was lost at higher BMI when other causative factors for diabetes (e.g. insulin resistance) exert more influence.

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