Relationship between Leptin and Insulin Resistance among Community—Dwelling Middle-Aged and Elderly Populations in Taiwan

The relationship between leptin and insulin resistance among middle-aged and elderly populations in Asia is seldom reported. Our research included 398 middle-aged and elderly Taiwanese individuals. First, we divided participants into three groups according to the tertiles of the homeostasis model as...

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Main Authors: Yu-Lin Shih, Tzu-Cheng Huang, Chin-Chuan Shih, Jau-Yuan Chen
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Journal of Clinical Medicine
Subjects:
Online Access:https://www.mdpi.com/2077-0383/11/18/5357
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author Yu-Lin Shih
Tzu-Cheng Huang
Chin-Chuan Shih
Jau-Yuan Chen
author_facet Yu-Lin Shih
Tzu-Cheng Huang
Chin-Chuan Shih
Jau-Yuan Chen
author_sort Yu-Lin Shih
collection DOAJ
description The relationship between leptin and insulin resistance among middle-aged and elderly populations in Asia is seldom reported. Our research included 398 middle-aged and elderly Taiwanese individuals. First, we divided participants into three groups according to the tertiles of the homeostasis model assessment of insulin resistance (HOMA-IR) to analyze the parameters between each group. Pearson’s correlation was then applied to calculate the correlation between HOMA-IR and cardiometabolic risk factors after adjusting for age. A scatter plot indicated a relationship between serum leptin levels and the HOMA-IR index. Finally, the coefficients of the serum leptin level and HOMA-IR were assessed by multivariate linear regression. The participants in the high HOMA-IR index group were more likely to have higher serum leptin levels. Meanwhile, the HOMA-IR index was positively correlated with serum leptin levels, even after adjusting for age. Serum leptin levels were positively correlated with the HOMA-IR index (β = 0.226, <i>p</i> < 0.01) in the multivariate linear regression after adjusting for age, sex, smoking, drinking, BMI, triglycerides, systolic blood pressure, fasting plasma glucose, uric acid, ALT, and creatinine. Furthermore, the leptin–creatinine ratio also showed a significantly positive relationship with HOMA-IR in the same multivariate linear regression model. In conclusion, serum leptin levels showed a positive relationship with insulin resistance in middle-aged and elderly people in Taiwan. Furthermore, serum leptin levels may be an independent risk factor for insulin resistance according to our study.
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spelling doaj.art-0579d92bb6f54ac380c1f65df50789db2023-11-23T16:59:23ZengMDPI AGJournal of Clinical Medicine2077-03832022-09-011118535710.3390/jcm11185357Relationship between Leptin and Insulin Resistance among Community—Dwelling Middle-Aged and Elderly Populations in TaiwanYu-Lin Shih0Tzu-Cheng Huang1Chin-Chuan Shih2Jau-Yuan Chen3Department of Family Medicine, Chang-Gung Memorial Hospital, Linkou Branch, Taoyuan 333, TaiwanDepartment of Family Medicine, Chang-Gung Memorial Hospital, Linkou Branch, Taoyuan 333, TaiwanUnited Safety Medical Group, General Administrative Department, New Taipei City 242, TaiwanDepartment of Family Medicine, Chang-Gung Memorial Hospital, Linkou Branch, Taoyuan 333, TaiwanThe relationship between leptin and insulin resistance among middle-aged and elderly populations in Asia is seldom reported. Our research included 398 middle-aged and elderly Taiwanese individuals. First, we divided participants into three groups according to the tertiles of the homeostasis model assessment of insulin resistance (HOMA-IR) to analyze the parameters between each group. Pearson’s correlation was then applied to calculate the correlation between HOMA-IR and cardiometabolic risk factors after adjusting for age. A scatter plot indicated a relationship between serum leptin levels and the HOMA-IR index. Finally, the coefficients of the serum leptin level and HOMA-IR were assessed by multivariate linear regression. The participants in the high HOMA-IR index group were more likely to have higher serum leptin levels. Meanwhile, the HOMA-IR index was positively correlated with serum leptin levels, even after adjusting for age. Serum leptin levels were positively correlated with the HOMA-IR index (β = 0.226, <i>p</i> < 0.01) in the multivariate linear regression after adjusting for age, sex, smoking, drinking, BMI, triglycerides, systolic blood pressure, fasting plasma glucose, uric acid, ALT, and creatinine. Furthermore, the leptin–creatinine ratio also showed a significantly positive relationship with HOMA-IR in the same multivariate linear regression model. In conclusion, serum leptin levels showed a positive relationship with insulin resistance in middle-aged and elderly people in Taiwan. Furthermore, serum leptin levels may be an independent risk factor for insulin resistance according to our study.https://www.mdpi.com/2077-0383/11/18/5357HOMA-IR indexinsulin resistanceleptinmiddle-aged and elderlymetabolic syndromeobesity
spellingShingle Yu-Lin Shih
Tzu-Cheng Huang
Chin-Chuan Shih
Jau-Yuan Chen
Relationship between Leptin and Insulin Resistance among Community—Dwelling Middle-Aged and Elderly Populations in Taiwan
Journal of Clinical Medicine
HOMA-IR index
insulin resistance
leptin
middle-aged and elderly
metabolic syndrome
obesity
title Relationship between Leptin and Insulin Resistance among Community—Dwelling Middle-Aged and Elderly Populations in Taiwan
title_full Relationship between Leptin and Insulin Resistance among Community—Dwelling Middle-Aged and Elderly Populations in Taiwan
title_fullStr Relationship between Leptin and Insulin Resistance among Community—Dwelling Middle-Aged and Elderly Populations in Taiwan
title_full_unstemmed Relationship between Leptin and Insulin Resistance among Community—Dwelling Middle-Aged and Elderly Populations in Taiwan
title_short Relationship between Leptin and Insulin Resistance among Community—Dwelling Middle-Aged and Elderly Populations in Taiwan
title_sort relationship between leptin and insulin resistance among community dwelling middle aged and elderly populations in taiwan
topic HOMA-IR index
insulin resistance
leptin
middle-aged and elderly
metabolic syndrome
obesity
url https://www.mdpi.com/2077-0383/11/18/5357
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