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Correlative studies on the effects of obesity, diabetes and hypertension on gene expression in omental adipose tissue of obese women.
MedLine Citation:
PMID:  23154658     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: A major consequence of obesity is the enormous expansion of and enhanced inflammatory response seen in visceral adipose tissue. I hypothesized that the expression of inflammatory markers in visceral omental fat would correlate with the extent of visceral adiposity as measured by waist circumference or body mass index and that diabetes and hypertension, defined as subjects taking anti-hypertensive drugs, would be associated with changes in mRNA expression in visceral fat.
DESIGN AND METHODS: The expression of 106 mRNAs by RT-PCR was examined in observational studies using extracts of omental fat of obese women undergoing bariatric surgery as well as the circulating levels of some adipokines. We also compared the mRNA levels of 65 proteins in omental fat removed during gastric bypass surgery of women with and without hypertension and those with type 2 diabetes.
RESULTS: Out of 106 mRNAs the expression of 10 mRNAs in omental fat of women not taking anti-hypertensive drugs correlated with waist circumference while 7 different mRNAs had significant correlations with circulating glucose. The correlations of waist circumference with mRNA expression were abolished, except for interleukin (IL)-1 receptor antagonist (IL-1RA), in women taking anti-hypertensive drugs. The correlations of blood glucose with omental fat mRNA expression were abolished, except for that of Akt1 and Akt2, in women taking anti-hypertensive drugs. However, the expression of 4 different mRNAs in omental fat was affected by circulating glucose in subjects taking anti-hypertensive drugs. The circulating levels of IL-1 RA, but not fatty acid binding protein 4, adipsin and phospholipase A2, correlated with both waist circumference and mRNA expression in omental fat.
CONCLUSION: In female bariatric surgery patients, the mRNA expression of some proteins in omental fat was affected by the degree of obesity, whereas hypertension and diabetes affected a separate set of mRNAs.Nutrition and Diabetes (2011) 1, e17; doi:10.1038/nutd.2011.14; published online 26 September 2011.
Authors:
J N Fain
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Publication Detail:
Type:  Journal Article     Date:  2011-09-26
Journal Detail:
Title:  Nutrition & diabetes     Volume:  1     ISSN:  2044-4052     ISO Abbreviation:  Nutr Diabetes     Publication Date:  2011  
Date Detail:
Created Date:  2012-11-16     Completed Date:  2012-11-19     Revised Date:  2014-07-31    
Medline Journal Info:
Nlm Unique ID:  101566341     Medline TA:  Nutr Diabetes     Country:  England    
Other Details:
Languages:  eng     Pagination:  e17     Citation Subset:  -    
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