Contribution of adiponectin to the cardiometabolic risk of postmenopausal women with loss-of-function lipoprotein lipase gene mutations.
OBJECTIVE
Cardiovascular risk significantly increases after menopause. Lipoprotein lipase (LPL) is a key enzyme in the metabolism of triglyceride (TG)-rich lipoproteins, which contributes to cardiometabolic homeostasis. Adiponectin is an adipocytokine, which also influences the cardiometabolic status. The objective of this study was to evaluate the contribution of plasma adiponectin to the cardiometabolic status of women with loss-of-function LPL gene variants (LPLD).


METHODS
A total of 568 white women (127 women with partial LPL deficiency and 441 controls) were included. The association of plasma adiponectin with LPLD was assessed using multiple regression models. Cardiometabolic covariates included anthropometrics, lipids (TG, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, and apolipoprotein B), fasting glucose, and smoking status.


RESULTS
Plasma adiponectin concentration was significantly lower in women with LPLD (8.69 ± 5.13 vs 6.50 ± 4.66 μg/mL; P < 0.001). Women with LPLD also presented a significantly higher risk of coronary artery disease (P = 0.013). After menopause, adiponectin explained a significant (P < 0.01) proportion of the variance in cardiometabolic covariates in both groups. This effect was more pronounced in women with LPLD: 13% versus 8% for high-density lipoprotein cholesterol, 8% versus 4% for waist circumference, 9% versus 5% for fasting TG, and 6% versus 2% for fasting glucose. When controlling for cardiometabolic covariates, low adiponectin values independently contributed to the clinical expression of LPLD in postmenopausal women (odds ratio, 5.55; 95% CI, 0.04-0.81; P = 0.025).


CONCLUSIONS
In conclusion, these results suggest that a low plasma adiponectin level significantly contributes to the cardiometabolic risk profile of postmenopausal women with LPLD, independently of anthropometrics, lipids, and other covariates.
Department of Medicine, Université de Montréal, Montréal, ECOGENE-21 Clinical Research Center, Chicoutimi Hospital, Chicoutimi, Quebec, Canada.
Yacine
Y
Loucif
Julie
J
Méthot
Karine
K
Tremblay
Diane
D
Brisson
Daniel
D
Gaudet
D052242:Adiponectin / Q000097:blood*; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015331:Cohort Studies; D003327:Coronary Disease / Q000201:enzymology / Q000453:epidemiology* / Q000235:genetics; D005260:Female; D006801:Humans; D008055:Lipids / Q000097:blood / Q000235:genetics; D008071:Lipoprotein Lipase / Q000235:genetics*; D008875:Middle Aged; D009154:Mutation; D017698:Postmenopause; D012306:Risk; D055105:Waist Circumference / Q000235:genetics; D044465:White People / Q000235:genetics / Q000706:statistics & numerical data; D055815:Young Adult
D052242:Adiponectin; D008055:Lipids; D008071:Lipoprotein Lipase