Effect of marked weight loss on adiponectin gene expression and plasma concentrations
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Effect of marked weight loss on adiponectin gene expression and plasma concentrations. / Coughlin, Carrie C; Finck, Brian N; Eagon, J Christopher; Halpin, Valerie J; Magkos, Faidon; Mohammed, B Selma; Klein, Samuel.
In: Obesity, Vol. 15, No. 3, 2007, p. 640-645.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Effect of marked weight loss on adiponectin gene expression and plasma concentrations
AU - Coughlin, Carrie C
AU - Finck, Brian N
AU - Eagon, J Christopher
AU - Halpin, Valerie J
AU - Magkos, Faidon
AU - Mohammed, B Selma
AU - Klein, Samuel
N1 - (Ekstern)
PY - 2007
Y1 - 2007
N2 - Objective: Adiponectin is the most abundant protein secreted by adipose tissue and is inversely associated with adiposity and insulin resistance. The aim of this study was to evaluate the hypothesis that marked weight loss, induced by gastric bypass surgery (GBS), would increase adiponectin gene expression in both upper and lower subcutaneous body fat and increase plasma adiponectin concentration.Research methods and procedures: Adiponectin subcutaneous abdominal and femoral adipose tissue gene expression, determined by using quantitative reverse transcriptase-polymerase chain reaction, and adiponectin plasma concentrations, determined by using enzyme-linked immunosorbent assay, were evaluated in six extremely obese women (BMI = 57.1 +/- 4.1 kg/m2) before and 1 year after GBS.Results: After GBS, subjects lost 36 +/- 5% of their initial body weight and showed increased insulin sensitivity, manifested by a marked decrease in homeostasis model assessment of insulin resistance from 10.7 +/- 4.1 to 1.4 +/- 0.3 (p < 0.05). Adiponectin gene expression increased 8- to 15-fold in subcutaneous abdominal and femoral adipose tissues (p < 0.05). Plasma adiponectin concentrations increased from 5.2 +/- 0.9 to 8.4 +/- 1.2 mug/mL (p < 0.05).Discussion: These data show that marked weight loss induced by GBS increases adiponectin gene expression in both upper- and lower-body subcutaneous fat. The increase in adipose tissue adiponectin production resulted in an increase in plasma adiponectin concentrations, which likely contributed to the decrease in insulin resistance observed after weight loss.
AB - Objective: Adiponectin is the most abundant protein secreted by adipose tissue and is inversely associated with adiposity and insulin resistance. The aim of this study was to evaluate the hypothesis that marked weight loss, induced by gastric bypass surgery (GBS), would increase adiponectin gene expression in both upper and lower subcutaneous body fat and increase plasma adiponectin concentration.Research methods and procedures: Adiponectin subcutaneous abdominal and femoral adipose tissue gene expression, determined by using quantitative reverse transcriptase-polymerase chain reaction, and adiponectin plasma concentrations, determined by using enzyme-linked immunosorbent assay, were evaluated in six extremely obese women (BMI = 57.1 +/- 4.1 kg/m2) before and 1 year after GBS.Results: After GBS, subjects lost 36 +/- 5% of their initial body weight and showed increased insulin sensitivity, manifested by a marked decrease in homeostasis model assessment of insulin resistance from 10.7 +/- 4.1 to 1.4 +/- 0.3 (p < 0.05). Adiponectin gene expression increased 8- to 15-fold in subcutaneous abdominal and femoral adipose tissues (p < 0.05). Plasma adiponectin concentrations increased from 5.2 +/- 0.9 to 8.4 +/- 1.2 mug/mL (p < 0.05).Discussion: These data show that marked weight loss induced by GBS increases adiponectin gene expression in both upper- and lower-body subcutaneous fat. The increase in adipose tissue adiponectin production resulted in an increase in plasma adiponectin concentrations, which likely contributed to the decrease in insulin resistance observed after weight loss.
KW - Adiponectin/blood
KW - Adult
KW - Body Weight
KW - Female
KW - Gastric Bypass
KW - Gene Expression
KW - Humans
KW - Insulin/blood
KW - Obesity, Morbid/surgery
KW - Weight Loss/physiology
U2 - 10.1038/oby.2007.556
DO - 10.1038/oby.2007.556
M3 - Journal article
C2 - 17372314
VL - 15
SP - 640
EP - 645
JO - Obesity
JF - Obesity
SN - 1930-7381
IS - 3
ER -
ID: 297143753