Body Mass Index Changes in Relation to Male Reproductive Hormones: Longitudinal Results From a Community-Based Cohort Study

The objective of the current study was to explore the relationship between longitudinal change in body mass index (BMI) and reproductive hormones in middle-aged and elderly Chinese men. A cohort study was conducted in a rural area of China. Local male residents aged 40–80 years were recruited at bas...

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Autores principales:	Yun Ye, Qun-Feng Liang, Jian-Hui Li, Jun-Biao Zheng, Xiao-Hua Yu, Shu-Cheng Zhang, Wei-Jin Zhou, Hui-Juan Shi, Guo-Qing Liang, Qian-Xi Zhu
Formato:	article
Lenguaje:	EN
Publicado:	SAGE Publishing 2021
Materias:	Medicine R
Acceso en línea:	https://doaj.org/article/13e47efc158a4f10932b11cfcc894f5a
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spelling	oai:doaj.org-article:13e47efc158a4f10932b11cfcc894f5a2021-11-12T11:04:02ZBody Mass Index Changes in Relation to Male Reproductive Hormones: Longitudinal Results From a Community-Based Cohort Study1557-989110.1177/15579883211049044https://doaj.org/article/13e47efc158a4f10932b11cfcc894f5a2021-09-01T00:00:00Zhttps://doi.org/10.1177/15579883211049044https://doaj.org/toc/1557-9891The objective of the current study was to explore the relationship between longitudinal change in body mass index (BMI) and reproductive hormones in middle-aged and elderly Chinese men. A cohort study was conducted in a rural area of China. Local male residents aged 40–80 years were recruited at baseline in 2012 and were followed up in 2016. Information about weight, height, waist circumference, sex hormones, smoking status, and medical history were obtained. The change in BMI reported no significant relationship with the change in total testosterone (TT), calculated free testosterone (cFT), and bioavailable testosterone (BioT) in Pearson correlation analyses. When the change in BMI was divided into three groups—“great loss,” “normal fluctuation,” and “great gain”—TT, cFT and BioT had the highest increase (or the lowest decrease) in men with “normal fluctuation” in BMI compared with the other two groups. The advantage of maintaining a stable BMI was more evident for those who were overweight, non-smoking, and disease-free. There was a tendency of a continuous increase in cFT and BioT with BMI increase in smoking and diseased populations. Maintaining a stable BMI is associated with maintaining normal levels of reproductive hormones, especially in overweight, non-smoking, and healthy men aged over 40 years.Yun YeQun-Feng LiangJian-Hui LiJun-Biao ZhengXiao-Hua YuShu-Cheng ZhangWei-Jin ZhouHui-Juan ShiGuo-Qing LiangQian-Xi ZhuSAGE PublishingarticleMedicineRENAmerican Journal of Men's Health, Vol 15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R
spellingShingle	Medicine R Yun Ye Qun-Feng Liang Jian-Hui Li Jun-Biao Zheng Xiao-Hua Yu Shu-Cheng Zhang Wei-Jin Zhou Hui-Juan Shi Guo-Qing Liang Qian-Xi Zhu Body Mass Index Changes in Relation to Male Reproductive Hormones: Longitudinal Results From a Community-Based Cohort Study
description	The objective of the current study was to explore the relationship between longitudinal change in body mass index (BMI) and reproductive hormones in middle-aged and elderly Chinese men. A cohort study was conducted in a rural area of China. Local male residents aged 40–80 years were recruited at baseline in 2012 and were followed up in 2016. Information about weight, height, waist circumference, sex hormones, smoking status, and medical history were obtained. The change in BMI reported no significant relationship with the change in total testosterone (TT), calculated free testosterone (cFT), and bioavailable testosterone (BioT) in Pearson correlation analyses. When the change in BMI was divided into three groups—“great loss,” “normal fluctuation,” and “great gain”—TT, cFT and BioT had the highest increase (or the lowest decrease) in men with “normal fluctuation” in BMI compared with the other two groups. The advantage of maintaining a stable BMI was more evident for those who were overweight, non-smoking, and disease-free. There was a tendency of a continuous increase in cFT and BioT with BMI increase in smoking and diseased populations. Maintaining a stable BMI is associated with maintaining normal levels of reproductive hormones, especially in overweight, non-smoking, and healthy men aged over 40 years.
format	article
author	Yun Ye Qun-Feng Liang Jian-Hui Li Jun-Biao Zheng Xiao-Hua Yu Shu-Cheng Zhang Wei-Jin Zhou Hui-Juan Shi Guo-Qing Liang Qian-Xi Zhu
author_facet	Yun Ye Qun-Feng Liang Jian-Hui Li Jun-Biao Zheng Xiao-Hua Yu Shu-Cheng Zhang Wei-Jin Zhou Hui-Juan Shi Guo-Qing Liang Qian-Xi Zhu
author_sort	Yun Ye
title	Body Mass Index Changes in Relation to Male Reproductive Hormones: Longitudinal Results From a Community-Based Cohort Study
title_short	Body Mass Index Changes in Relation to Male Reproductive Hormones: Longitudinal Results From a Community-Based Cohort Study
title_full	Body Mass Index Changes in Relation to Male Reproductive Hormones: Longitudinal Results From a Community-Based Cohort Study
title_fullStr	Body Mass Index Changes in Relation to Male Reproductive Hormones: Longitudinal Results From a Community-Based Cohort Study
title_full_unstemmed	Body Mass Index Changes in Relation to Male Reproductive Hormones: Longitudinal Results From a Community-Based Cohort Study
title_sort	body mass index changes in relation to male reproductive hormones: longitudinal results from a community-based cohort study
publisher	SAGE Publishing
publishDate	2021
url	https://doaj.org/article/13e47efc158a4f10932b11cfcc894f5a
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Body Mass Index Changes in Relation to Male Reproductive Hormones: Longitudinal Results From a Community-Based Cohort Study

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