期刊
NUTRITION METABOLISM AND CARDIOVASCULAR DISEASES
卷 29, 期 11, 页码 1220-1229出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.numecd.2019.07.003
关键词
Obesity; Insulin resistance; Temporal relationship; Hypertension; Rural adults
资金
- National Natural Science Foundation of China [81773510]
- National Key R&D Program of China [2018YFC1311600]
Background and aims: Obesity and insulin levels can influence each other by metabolism. However, their temporal sequences and influence on hypertension are generally unknown, especially in Chinese adults. Recently, some scholars have proposed that triglycerides-glucose index (TyG) is an important indicator of insulin resistance. The study aims to describe the relationship between body mass index (BMI) and TyG index and its impact on hypertension. Methods and results: A total of 4081 adults (56.33% women) without antihypertensive, hypoglycemic or lipid-lowering medications were selected for the present study. Measurements of BMI and TyG index were obtained twice from 2012 to 2017. Cross-lagged panel analysis was used to describe the temporal sequences between BMI and TyG index, and the effect of their temporal relationship patterns on hypertension was explored through mediation analysis. After adjusting for confounding factors (age, sex, ethnicity et al.), the cross-lagged path coefficient from baseline BMI to follow-up TyG (rho(2) = 0.135, P < 0.001) was significantly greater than the path coefficient from baseline TyG to follow-up BMI (rho(1) = 0.043, P < 0.001), and P < 0.001 for the difference between rho(1) and rho(2). Furthermore, the sensitivity analyses between women and men revealed identical findings. In addition, TyG index mediation effect on BMI-hypertension was estimated to be 38.45% (P < 0.001) in total population, 25.24% in women and 57.35% in men. Conclusion: These results provided evidence that the temporal relationship between BMI and insulin resistance is reciprocal and a higher BMI precedes hyperinsulinemia in Chinese adults. This relationship plays an essential role in the development of hypertension, while there is a difference between women and men. (C) 2019 The Italian Society of Diabetology, the Italian Society for the Study of Atherosclerosis, the Italian Society of Human Nutrition, and the Department of Clinical Medicine and Surgery, Federico II University. Published by Elsevier B.V.
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