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Longitudinal changes in left ventricular structure and function in patients with type 2 diabetes: Normal weight versus overweight/obesity.

ABSTRACT: OBJECTIVE:Although reported to be independent of obesity, the longitudinal changes of left ventricular structure and function have not been well characterized in normal-weight individuals with type 2 diabetes compared with overweight/obese individuals with type 2 diabetes. METHODS:A total of 558 participants in the Korean Genome and Epidemiology Study who underwent tissue Doppler echocardiography at baseline (cycle 4) and after 8?years (cycle 8) were classified into three groups based on body mass index and diabetes status: (1) normal-weight individuals without type 2 diabetes, (2) normal-weight individuals with type 2 diabetes and (3) overweight/obese individuals with type 2 diabetes. RESULTS:Only overweight/obese individuals with type 2 diabetes group had higher adjusted left ventricular mass index and lower tissue Doppler imaging early diastolic velocity and E/Em ratio compared with the normal-weight individuals without type 2 diabetes group at baseline and after 8?years. Participants in overweight/obese individuals with type 2 diabetes group also showed the higher prevalence and odds of left ventricular hypertrophy (16.0%; adjusted odds ratio: 2.24; 95% confidence interval: 1.22-5.06) and left ventricular diastolic dysfunction (49.1%; 3.45; 1.01-4.32). Among participants with normal left ventricular structure and function at baseline, only overweight/obese individuals with type 2 diabetes group was associated with greater incidence of left ventricular hypertrophy (relative risk: 2.28; 1.04-4.98) over 8?years but not diastolic dysfunction. CONCLUSION:Cross-sectional and longitudinal observations suggest that increasing body mass index category and its associated metabolic abnormalities at baseline are associated with an increased risk for left ventricular hypertrophy and greater impairment in left ventricular diastolic parameters.

SUBMITTER: Kim SH

PROVIDER: S-EPMC7133711 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature

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Longitudinal changes in left ventricular structure and function in patients with type 2 diabetes: Normal weight versus overweight/obesity.

Kim Seong Hwan SH Sung Ki-Chul KC Lee Seung Ku SK Park Juri J Kim Nan Hee NH Kim Sun H SH Shin Chol C

Diabetes & vascular disease research 20190513 5

<h4>Objective</h4>Although reported to be independent of obesity, the longitudinal changes of left ventricular structure and function have not been well characterized in normal-weight individuals with type 2 diabetes compared with overweight/obese individuals with type 2 diabetes.<h4>Methods</h4>A total of 558 participants in the Korean Genome and Epidemiology Study who underwent tissue Doppler echocardiography at baseline (cycle 4) and after 8 years (cycle 8) were classified into three groups b ...[more]

PMID: 31081361

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Project description:BackgroundMany adiposity traits have been related to health complications and premature death. These adiposity traits are intercorrelated but their underlying structure has not been extensively investigated. We report on the degree of commonality and specificity among multiple adiposity traits in normal-weight and moderately overweight adult males and females (mean body mass index (BMI)=22.9 kg m(-2), s.d.=2.4).MethodsA total of 75 healthy participants were assessed for a panel of adiposity traits including leg, arm, trunk, total fat masses and visceral adipose tissue (VAT) derived from dual energy X-ray absorptiometry (DXA), hepatic and muscle lipids from proton magnetic resonance spectroscopy, fat cell volume from an abdominal subcutaneous adipose tissue biopsy (n=36) and conventional anthropometry (BMI and waist girth). Spearman's correlations were calculated and were subjected to factor analysis.ResultsArm, leg, trunk and total fat masses correlated positively (r=0.78-0.95) with each other. VAT correlated weakly with fat mass indicators (r=0.24-0.31). Intrahepatic lipids (IHL) correlated weakly with all fat mass traits (r=0.09-0.34), whereas correlations between DXA depots and intramyocellular lipids (IMCL) were inconsequential. The four DXA fat mass measures, VAT, IHL and IMCL depots segregated as four independent factors that accounted for 96% of the overall adiposity variance. BMI and waist girth were moderately correlated with the arm, leg, trunk and total fat and weakly with VAT, IHL and IMCL.ConclusionAdiposity traits share a substantial degree of commonality, but there is considerable specificity across the adiposity variance space. For instance, VAT, IHL and IMCL are typically poorly correlated with each other and are poorly to weakly associated with the other adiposity traits. The same is true for BMI and waist girth, commonly used anthropometric indicators of adiposity. These results do not support the view that it will be possible to identify adequate anthropometric indicators of visceral, hepatic and muscle lipid content in normal-weight and moderately overweight individuals.

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Longitudinal changes in left ventricular structure and function in patients with type 2 diabetes: Normal weight versus overweight/obesity.

Publications

Longitudinal changes in left ventricular structure and function in patients with type 2 diabetes: Normal weight versus overweight/obesity.

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