Saraç Fulden, Ozgen Ahmet Gökhan, Yilmaz Candeğer, Tüzün Mehmet
Department of Endocrinology and Metabolism, Faculty of Medicine, Ege University, Izmir, Turkey.
Anadolu Kardiyol Derg. 2007 Dec;7(4):371-7.
Evidence for a connection between obesity and cardiovascular disease is derived from epidemiological studies. The aim of this study was to evaluate the cardiovascular risk factors in obese women and their first-degree relatives.
Fifty-five obese women and their 154 first-degree relatives (daughter, son, sister, brother), 60 non-obese women and their 100 first-degree relatives were enrolled in this cross-sectional controlled study. Blood pressure, heart rate, body mass index (BMI), waist-to-hip ratio (WHpR), waist circumference (WC) and lipid levels were measured in all participants. Serum concentrations of insulin were measured by chemiluminescence method, plasma levels of high sensitive C-reactive protein (hs CRP) by immunoturbimetric assay and fibrinogen by coagulation method. Measurement of insulin resistance (IR) was calculated using homeostasis model assessment (HOMA). Statistical analysis was preformed using Chi-square, Student's t and Mann-Whitney U tests. The relationship between obesity indices and cardiovascular risk factors were studied using linear regression analysis.
Mean values of BMI in female and male relatives were found as 25.10+/-2.5 kg/m2 and 23.5+/-4.98 kg/m2, respectively. In relatives, the frequencies of obesity, overweight and normal weight were found to be 8.9%, 25.8% and 65.1%, respectively. Central obesity was found higher in males than in females in the first-degree relatives, using WC (28.5% vs. 14.3%, p=0.001) or WHpR (30.9% vs. 24.5%, p=0.002). Elevated blood pressure (>or=140/90 mmHg) was recorded in 23.6% of obese women and in 8.4% of their relatives. Mean HOMA-IR levels of obese women and their relatives were found as 3.26+/-0.7 and 2.07+/-1.1, respectively. Mean hs CRP levels of obese women and their relatives were 0.98+/-0.08 mg/dl and 0.23+/-0.03 mg/dl, respectively (p=0.002). Mean fibrinogen levels of obese women and their relatives were 443.21+/-45.9 mg/dl and 321.10+/-38.23 mg/dl, respectively.
In obese women and their relatives, body mass index and waist circumferences are related with blood pressure, total cholesterol, fibrinogen and insulin resistance. If there are obese women in family, first-degree relatives have 1.8 fold increased obesity frequency. Body mass index increases together with cardiovascular risk factors. In early term, prevention of obesity may decrease developing of cardiovascular risk.
肥胖与心血管疾病之间存在关联的证据来源于流行病学研究。本研究的目的是评估肥胖女性及其一级亲属的心血管危险因素。
本横断面对照研究纳入了55名肥胖女性及其154名一级亲属(女儿、儿子、姐妹、兄弟)、60名非肥胖女性及其100名一级亲属。测量了所有参与者的血压、心率、体重指数(BMI)、腰臀比(WHpR)、腰围(WC)和血脂水平。采用化学发光法测定血清胰岛素浓度,免疫比浊法测定血浆高敏C反应蛋白(hs CRP)水平,凝血法测定纤维蛋白原。使用稳态模型评估(HOMA)计算胰岛素抵抗(IR)。采用卡方检验、学生t检验和曼-惠特尼U检验进行统计分析。使用线性回归分析研究肥胖指数与心血管危险因素之间的关系。
女性和男性亲属的BMI平均值分别为25.10±2.5 kg/m²和23.5±4.98 kg/m²。在亲属中,肥胖、超重和正常体重的频率分别为8.9%、25.8%和65.1%。在一级亲属中,使用WC(28.5%对14.3%,p = 0.001)或WHpR(30.9%对24.5%,p = 0.002)时,男性中心性肥胖高于女性。23.6%的肥胖女性及其8.4%的亲属血压升高(≥140/90 mmHg)。肥胖女性及其亲属的平均HOMA-IR水平分别为3.26±0.7和2.07±1.1。肥胖女性及其亲属的平均hs CRP水平分别为0.98±0.08 mg/dl和0.23±0.03 mg/dl(p = 0.002)。肥胖女性及其亲属的平均纤维蛋白原水平分别为443.21±45.9 mg/dl和321.10±38.23 mg/dl。
在肥胖女性及其亲属中,体重指数和腰围与血压、总胆固醇、纤维蛋白原和胰岛素抵抗有关。如果家族中有肥胖女性,一级亲属的肥胖频率增加1.8倍。体重指数与心血管危险因素一同升高。早期预防肥胖可能会降低心血管危险因素的发生。