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Circulating 11β‐Hydroxysteroid Dehydrogenase Type 1 mRNA and Cardiovascular Risk Factors
Author(s) -
Al Bakir Maise,
Butt Asif N.,
Swaminathan R.
Publication year - 2008
Publication title -
annals of the new york academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.712
H-Index - 248
eISSN - 1749-6632
pISSN - 0077-8923
DOI - 10.1196/annals.1448.007
Subject(s) - medicine , endocrinology , menopause , messenger rna , pathogenesis , 11β hydroxysteroid dehydrogenase type 1 , metabolic syndrome , obesity , gene expression , risk factor , biology , dehydrogenase , enzyme , gene , biochemistry
11β‐Hydroxysteroid dehydrogenase type 1 (11β‐HSD1) has been implicated in the pathogenesis of central obesity and metabolic syndrome. It has been shown that tissue‐specific mRNA is present in blood, raising the possibility that quantifiable levels of 11β‐HSD1 mRNA may also be present in circulation. The aim of this study was to determine whether a relationship exists between circulating 11β‐HSD1 mRNA levels and various cardiovascular risk factors. Whole blood was collected using PAXgene Blood RNA tubes from 73 subjects. Total RNA was extracted, reverse‐transcribed to cDNA, and 11β‐HSD1 mRNA was measured by quantitative real time PCR. The median BMI was 24 (range = 17–36) and the concentration of 11β‐HSD1 mRNA tended to decrease with increasing BMI ( r =−0.206; P = 0.08). Multiple linear regression analysis identified BMI as an independent predictor of mRNA levels (β=−0.412, P = 0.002). Other factors included in the analysis are age (β= 0.952, P < 0.001), smoking (β=−0.228, P = 0.027), alcohol intake (β= 0.479, P < 0.001), and duration of menopause (β=−1.602, P < 0.001). The results suggest a net decrease in systemic expression of 11β‐HSD1 with increased smoking, BMI, and duration of menopause. Increased systemic expression is seen with increasing age and alcohol intake.