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Correlation between interleukin-1 and the obesity of polycystic ovary syndrome

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Author:
No author available
Journal Title:
Chinese Journal of Obstetrics and Gynecology
Issue:
1
DOI:
10.3760/cma.j.issn.0529-567x.2012.01.004
Key Word:
多囊卵巢综合征;肥胖症;白细胞介素1β;受体,白细胞介素1;多态现象,遗传;Polycystic ovary syndrome;Obesity;Interleukin-1beta;Receptors,interleukin-1;Polymorphism,genetic

Abstract: Objective To investigate the correlation between interleukin-1β(IL-1β),interleukin-1 receptor antagonist(IL-1 ra)and the obesity of polycystic ovary syndrome(PCOS).Methods(1)From Oct.2006 to Jan.2007,118 PCOS patients were enrolled in this study in Peking University Third Hospital,which were divided into 56 patients in obese PCOS group and 62 patients in non-obese PCOS group according to the WHO International Obesity Task Force Asia-Pacific criteria[body mass index(BMI)25 kg/m2].The polymorphism of IL-1β gene promoter region,exon-5 and intron 2 of IL-1 ra gene were detected by PCR.(2)Twenty-nine obese PCOS patients and 31 non-obese PCOS patients were selected randomizedly serum levels of IL-1β,IL-1 ra were measured by ELISA,in the mean time,serum levels of fasting glucose,fasting insulin and the total white blood cell,hypersensitive C-reactive protein levels were measured.Results(1)Genetic test:the frequency of TT genotype and T allele of IL-1β promoter region(-511)in obese PCOS patients were significantly higher than those in non-obese patients(44.6% vs.11.3%,63.4% vs.39.5%,all P <0.05).The frequency of IL-1 ra Ⅰ / Ⅴ genotype and Ⅴ allele of IL-1 ra gene were 19.6% and 9.8% in obese PCOS patients,which were significantly higher than those in non-obese group(3.2% and 1.6%,P <0.05).(2)Serological test:serum level of IL-1β and IL-1ra of(149 ±36)and(284 ±97)ng/L in obese PCOS group which were significantly higher than those in non-obese PCOS group[(96 ± 42)and(208 ± 84)ng/L,P < 0.05].Fasting blood glucose,fasting insulin and hypersensitive C-reactive protein and white blood cell count were(5.1 ± 0.7)mmol/L,(17 ± 9)mU/L,(1.5 ± 0.6)mg/L and(7.0 ± 2.3)× 109/L in obese PCOS group,which were significantly higher than in non-obese PCOS group[(4.9 ±0.5)mmol/L,(11 ±8)mU/L,(0.9 ±0.4)mg/L and(5.9 ±1.3)× 109/L,P<0.05].(3)The correlation between interleukin and BMI: serum levels of IL-1β(r =0.673)and IL-1 ra(r =0.557)were positively correlated with BMI in PCOS patients(P < 0.05).Conclusions Inflammatory factors IL-1β and IL-1ra had correlation with obesity of PCOS patients,PCOS patients who carried T allele of IL-1β gene promoter region(-511)and Ⅴ allele of IL-1ra gene were high risk of obesity.

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