Nutrition, metabolism, and cardiovascular diseases : NMCD · 2024
Long-term burden and increasing trends of body mass index are linked with adult hypertension through triglyceride-glucose index: A 30-year prospective cohort study.
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Liao Yue-Yuan, Wang Dan, Chu Chao, Man Zi-Yue, Wang Yang, Ma Qiong, Chen Chen, Sun Yue, Mu Jian-Jun
Аннотация
BACKGROUND AND AIMS: Insulin resistance (IR) has previously been associated with hypertension, and obesity is a risk factor for IR and hypertension. There is likely an association between body mass index (BMI) and risk for hypertension through the triglyceride-glucose (TyG) index but this relationship remains uncharacterized.
METHODS AND RESULTS: This study is based on the Hanzhong Adolescent Hypertension Cohort, which is an ongoing prospective study established in 1987. The TyG index was calculated as ln [fasting triglyceride (mg/dl) × fasting plasma glucose (mg/dl)/2]. The total area under the curve (AUCt) and incremental AUC (AUCi) were calculated as the long-term burden and trend of BMI, respectively. We found that BMI AUCt and BMI AUCi were significantly associated with the risk of adult hypertension, both without (RR = 1.30/1.31 for BMI AUCt/AUCi) and with (RR = 1.25/1.26 for BMI AUCt/AUCi) the inclusion of the TyG index as a covariate. Importantly, mediation analysis revealed that the TyG index mediated the BMI AUCt-SBP association (19.3%), the BMI AUCt-DBP association (22.7%), the BMI AUCi-SBP association (18.5%) and the BMI AUCi-DBP association (21.3%). Furthermore, the TyG index had a significant mediating effect of 15.9% on the BMI AUCt-hypertension association and 14.9% on the BMI AUCi-hypertension association.
CONCLUSION: These findings suggest that the TyG index plays an important mediating role in the association between the cumulative burden and increasing trends of BMI originating in childhood and the risk of hypertension in midlife. We emphasize that early weight management has the potential to reduce the burden of hypertension caused by IR.
TRIAL REGISTRATION: The study was clinically registered at the ClinicalTrials.gov (NCT02734472) and approved by the Academic Committee of the First Affiliated Hospital of Xi'an Jiaotong University (XJTU1AF2015LSL-047).
METHODS AND RESULTS: This study is based on the Hanzhong Adolescent Hypertension Cohort, which is an ongoing prospective study established in 1987. The TyG index was calculated as ln [fasting triglyceride (mg/dl) × fasting plasma glucose (mg/dl)/2]. The total area under the curve (AUCt) and incremental AUC (AUCi) were calculated as the long-term burden and trend of BMI, respectively. We found that BMI AUCt and BMI AUCi were significantly associated with the risk of adult hypertension, both without (RR = 1.30/1.31 for BMI AUCt/AUCi) and with (RR = 1.25/1.26 for BMI AUCt/AUCi) the inclusion of the TyG index as a covariate. Importantly, mediation analysis revealed that the TyG index mediated the BMI AUCt-SBP association (19.3%), the BMI AUCt-DBP association (22.7%), the BMI AUCi-SBP association (18.5%) and the BMI AUCi-DBP association (21.3%). Furthermore, the TyG index had a significant mediating effect of 15.9% on the BMI AUCt-hypertension association and 14.9% on the BMI AUCi-hypertension association.
CONCLUSION: These findings suggest that the TyG index plays an important mediating role in the association between the cumulative burden and increasing trends of BMI originating in childhood and the risk of hypertension in midlife. We emphasize that early weight management has the potential to reduce the burden of hypertension caused by IR.
TRIAL REGISTRATION: The study was clinically registered at the ClinicalTrials.gov (NCT02734472) and approved by the Academic Committee of the First Affiliated Hospital of Xi'an Jiaotong University (XJTU1AF2015LSL-047).