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Wang L, Liu X, Wei D, Kang N, Nie L, Liu P, Fan K, Zhang L, Hou J, Li X, Xu S, Jing T, Li W, Wang C, Mao Z, Huo W. The mediation role of SOCS3 methylation in the effect of serum testosterone on type 2 diabetes. J Diabetes 2021; 13:701-712. [PMID: 33576141 DOI: 10.1111/1753-0407.13167] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 01/21/2021] [Accepted: 02/03/2021] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Previous studies reported that testosterone and DNA methylation of suppressor of cytokine signaling-3 (SOCS3) were associated with type 2 diabetes (T2D). Testosterone affects SOCS3 gene expression. Therefore, we aimed to investigate how the SOCS3 methylation mediates the relationship between testosterone and T2D among Chinese rural adults. METHODS A case-control study comprised 365 T2D patients and 651 controls was conducted. Liquid chromatography-tandem mass spectrometry and MethylTarget were used to determine the levels of serum testosterone and DNA methylation of SOCS3 gene, respectively. The odds ratio (OR) of testosterone or SOCS3 methylation for T2D was calculated using logistic regression models, and β value of testosterone for SOCS3 methylation was evaluated by linear regression models. Furthermore, through mediation analysis the mediating effect of SOCS3 methylation on the association of testosterone with T2D was estimated. RESULTS After adjusting for multiple variables, the protective effect of testosterone on T2D was found in men (OR = 0.61, 95% confidence interval [CI]: 0.47-0.80), and the methylation of Chr17:76356190 or Chr17:76356199 was negatively related to T2D in both men and women. Moreover, testosterone was positively associated with Chr17:76356190 methylation in men and Chr17:76356199 methylation in women (both P < .05). The mediation analysis showed that the Chr17:76356190 methylation partly mediated effect of testosterone on T2D in men was approximately 8.2%. CONCLUSIONS High levels of serum testosterone in men and Chr17:76356190 and Chr17:76356199 (SOCS3) methylation were related to a lower prevalent T2D. In addition, Chr17:76356190 methylation partially mediated the effect of testosterone on T2D in Chinese rural men.
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Affiliation(s)
- Lulu Wang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Xiaotiao Liu
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Dandan Wei
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Ning Kang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Luting Nie
- Department of Occupational and Environmental Health Sciences, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Pengling Liu
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Keliang Fan
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Li Zhang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Jian Hou
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Xing Li
- Department of Nutrition and Food Hygiene, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Shunqing Xu
- School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tao Jing
- School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wenjie Li
- Department of Nutrition and Food Hygiene, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Chongjian Wang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Zhenxing Mao
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Wenqian Huo
- Department of Occupational and Environmental Health Sciences, College of Public Health, Zhengzhou University, Zhengzhou, China
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Zan G, Li L, Cheng H, Huang L, Huang S, Luo X, Xiao L, Liu C, Zhang H, Mo Z, Yang X. Mediated relationships between multiple metals exposure and fasting blood glucose by reproductive hormones in Chinese men. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 278:116791. [PMID: 33684679 DOI: 10.1016/j.envpol.2021.116791] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 02/16/2021] [Accepted: 02/17/2021] [Indexed: 06/12/2023]
Abstract
Previous studies have reported metals exposure contribute to the change of fasting blood glucose (FBG) level. However, the roles of reproductive hormones in their associations have not been fully elucidated. The aim of the study is to investigate the associations of multiple serum metals with reproductive hormones, and to further explore potential roles of reproductive hormones in relationships between metals exposure and FBG level. A total of 1911 Chinese Han men were analyzed by a cross-sectional study. We measured serum levels of 22 metals by inductively coupled plasma mass spectrometer (ICP-MS). FBG, total testosterone (TT), estradiol (E2), follicle stimulating hormone (FSH), and sex hormone-binding globulin (SHBG) levels were determined. Least absolute shrinkage and selection operator (LASSO) regression models were conducted to select important metals, and restricted cubic spline models were then used to estimate dose-response relationships between selected metals and reproductive hormones. We also conducted mediation analyses to evaluate whether reproductive hormones played mediating roles in the associations between metals and FBG. We found significant inverse dose-dependent trends of copper, tin and zinc with E2; zinc with SHBG; copper and nickel with TT, while significant positive dose-dependent trend of iron with E2, respectively. Moreover, approximately inverted U-shaped associations existed between lead and SHBG, iron and TT. In addition, E2, SHBG and TT were negatively associated with FBG level. In mediation analyses, the association of copper with FBG was mediated by E2 and TT, with a mediation ratio of 10.4% and 22.1%, respectively. Furthermore, E2 and SHBG mediated the relationship of zinc with FBG, with a mediation ratio of 7.8% and 14.5%, respectively. E2 mediated 11.5% of positive relationship between tin with FBG. Our study suggested that the associations of metals exposure with FBG may be mediated by reproductive hormones.
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Affiliation(s)
- Gaohui Zan
- Department of Occupational Health and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China; Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, China; Guangxi Key Laboratory for Genomic and Personalized Medicine, Nanning, Guangxi, China; Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Nanning, Guangxi, China
| | - Longman Li
- Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, China; Guangxi Key Laboratory for Genomic and Personalized Medicine, Nanning, Guangxi, China; Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Nanning, Guangxi, China
| | - Hong Cheng
- Department of Occupational Health and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China; Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, China; Guangxi Key Laboratory for Genomic and Personalized Medicine, Nanning, Guangxi, China; Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Nanning, Guangxi, China
| | - Lulu Huang
- Department of Occupational Health and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China; Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, China; Guangxi Key Laboratory for Genomic and Personalized Medicine, Nanning, Guangxi, China; Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Nanning, Guangxi, China
| | - Sifang Huang
- Department of Occupational Health and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China; Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, China; Guangxi Key Laboratory for Genomic and Personalized Medicine, Nanning, Guangxi, China; Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Nanning, Guangxi, China
| | - Xiaoyu Luo
- Department of Occupational Health and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China; Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, China; Guangxi Key Laboratory for Genomic and Personalized Medicine, Nanning, Guangxi, China; Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Nanning, Guangxi, China
| | - Lili Xiao
- Department of Occupational Health and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - Chaoqun Liu
- Department of Nutrition and Food Hygiene, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - Haiying Zhang
- Department of Occupational Health and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China; Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, China; Guangxi Key Laboratory for Genomic and Personalized Medicine, Nanning, Guangxi, China; Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Nanning, Guangxi, China
| | - Zengnan Mo
- Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, China; Guangxi Key Laboratory for Genomic and Personalized Medicine, Nanning, Guangxi, China; Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Nanning, Guangxi, China
| | - Xiaobo Yang
- Department of Occupational Health and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China; Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, China; Guangxi Key Laboratory for Genomic and Personalized Medicine, Nanning, Guangxi, China; Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Nanning, Guangxi, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, Guangxi, China; Department of Public Health, School of Medicine, Guangxi University of Science and Technology, Liuzhou, Guangxi, China.
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Liu X, Huo W, Zhang R, Wei D, Tu R, Luo Z, Wang Y, Dong X, Qiao D, Liu P, Zhang L, Fan K, Nie L, Liu X, Li L, Wang C, Mao Z. Androgen receptor DNA methylation is an independent determinant of glucose metabolic disorders in women; testosterone plays a moderating effect. J Diabetes 2021; 13:282-291. [PMID: 32979029 DOI: 10.1111/1753-0407.13117] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 09/12/2020] [Accepted: 09/22/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND We have previously shown that serum testosterone was associated with impaired fasting glucose (IFG) and type 2 diabetes (T2D). Testosterone can be acting through binding the androgen receptor (AR). Therefore, we aimed to explore the independent associations of AR DNA methylation (ARm) with IFG and T2D and the moderation effects of serum testosterone on the associations. METHODS A case-control study with 1065 participants including 461 men and 604 women was performed. ARm in peripheral blood sample and serum testosterone were measured using pyrosequeuncing and liquid chromatography-tandem mass, respectively. Multivariable logistic regression was performed to estimate the associations of ARm (including 2 cytosine-phosphoguanine [CpG] islands and average methylation levels) with different glucose status. Serum testosterone was used as a moderator to estimate the moderation effect. RESULTS After multivariate adjustment, CpG 1, 2 and CpG average methylation were all significantly associated with IFG (CpG 1: Odds ratio (OR) = 4.80, 95% confidence interval (CI): 2.24-10.27; CpG 2: OR = 4.35, 95% CI: 2.50-7.58; CpG average: OR = 11.73, 95% CI: 5.36-25.67) in women. In addition, testosterone played negative moderation effects in above associations. Moreover, no significant independent associations of methylation levels with T2D was observed both in men and women. CONCLUSION Our findings demonstrate that ARm was positively associated with IFG in women and the associations would be weakened by testosterone. The individuals experiencing low testosterone and ARm levels reported a lower state of IFG than those who experienced high levels of testosterone and ARm in women.
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Affiliation(s)
- Xue Liu
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Wenqian Huo
- Department of Occupational and Environmental Health Sciences, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Rui Zhang
- Zhengzhou Customs, Zhengzhou, PR China
| | - Dandan Wei
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Runqi Tu
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Zhicheng Luo
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Yan Wang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Xiaokang Dong
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Dou Qiao
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Pengling Liu
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Li Zhang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Keliang Fan
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Luting Nie
- Department of Occupational and Environmental Health Sciences, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Xiaotian Liu
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Linlin Li
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Chongjian Wang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Zhenxing Mao
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
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Zhang J, Li X, Cai Z, Li H, Yang B. Association between testosterone with type 2 diabetes in adult males, a meta-analysis and trial sequential analysis. Aging Male 2020; 23:607-618. [PMID: 30651030 DOI: 10.1080/13685538.2018.1557139] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVE We performed this meta-analysis to assess serum testosterone changes in adult males with Type 2 diabetes (T2DM). METHODS PubMed, Embase, Web of Science, and Cochrane Library were searched to identify qualified studies. Pooled weighted mean differences (WMDs) with 95% confidence intervals (CIs) were utilized to test the changes of total testosterone (TT), free testosterone (FT) and sex hormone-binding globulin (SHBG) in patients with T2DM. Besides, trial sequential analysis was used to verify the pooled results. RESULTS A total of 56 studies were enrolled in our meta-analysis. Meta-analyses of the cross-sectional studies showed that patients with T2DM has significant decreases in TT (WMD: -2.98, 95%CI: -3.48 to -2.47), FT (WMD: -32.82, 95%CI: -39.70 to -25.95) and SHBG (WMD: -2.47, 95%CI: -3.93 to -1.02). In terms of the prospective studies, our results showed decreases in TT (WMD: -2.35, 95%CI: -3.24 to -1.46), FT (WMD: -25.96, 95%CI: -83.98 to 32.05), and SHBG (WMD: -10.06, 95%CI: -13.29 to -6.84) in patients with T2DM. By trial sequential analyses, the findings in current meta-analysis were based on reliable evidence. CONCLUSION Our results indicate that patients with T2DM have lower serum TT, FT, and SHBG levels.
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Affiliation(s)
- Jianzhong Zhang
- Department of Urology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiao Li
- Department of Urology, The affiliated Cancer Hospital of Jiangsu Province of Nanjing Medical University, Nanjing, China
| | - Zhonglin Cai
- Department of Urology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Hongjun Li
- Department of Urology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Bin Yang
- Department of Urology, Affiliated Hospital of the Qingdao University, Qingdao, China
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Liu X, Jiang J, Liu X, Luo Z, Wang Y, Dong X, Wei D, Li R, Wang Y, Huo W, Yu S, Li L, Jin S, Wang C, Mao Z. Association of serum testosterone with different classes of glucose metabolism and the mediation effect of obesity: The Henan Rural Cohort Study. Diabetes Metab Res Rev 2019; 35:e3133. [PMID: 30715782 DOI: 10.1002/dmrr.3133] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 01/16/2019] [Accepted: 01/29/2019] [Indexed: 01/01/2023]
Abstract
AIMS We aimed to investigate the association of serum testosterone with impaired fasting glucose (IFG) and type 2 diabetes mellitus (T2DM) and calculate the proportion explained by obesity status on the relationship. MATERIALS AND METHODS A case-control study including 2775 participants was performed. Serum testosterone was quantified by liquid chromatography-tandem mass spectrometry. Conditional logistic regression and multivariable linear regression were performed to estimate the relationships between testosterone and different glucose status. Waist circumference (WC) was used as a mediator to estimate the mediation effect. RESULTS After adjusting for multiple variables, serum testosterone levels were negatively associated with T2DM in males (per 1 unit natural log-transformed, odd ratio (OR) = 0.73, 95% confidence interval (CI): 0.56, 0.96; Tertile 3 vs Tertile 1, OR = 0.46, 95% CI:0.29, 0.72) while were positively in females (per 1 unit natural log-transformed, OR = 1.56, 95% CI:1.32, 1.84; Tertile 3 vs Tertile 1, OR = 3.55, 95% CI: 2.22, 5.66). In males, a higher testosterone tended to be associated with a lower fasting plasma glucose level and a weaker HOMA2-IR but a stronger HOMA2-β. Opposite findings were observed in females. Furthermore, WC played a full and partial mediating role in the relationship between testosterone and IFG and T2DM both in males and females. CONCLUSION Serum testosterone levels had opposite effects on IFG and T2DM in males and females. With higher serum testosterone levels, the dysglycemia progression was decreased among males while increased among females. In addition, WC played a full and partial mediating role in the relationship between testosterone and IFG and T2DM.
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Affiliation(s)
- Xue Liu
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Jingjing Jiang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Xiaotian Liu
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Zhicheng Luo
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Yan Wang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Xiaokang Dong
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Dandan Wei
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Ruiying Li
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Yikang Wang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Wenqian Huo
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Songcheng Yu
- Department of Nutrition and Food Hygiene, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Linlin Li
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Shuna Jin
- Key Laboratory of Environment and Health, Ministry of Education and Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Chongjian Wang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Zhenxing Mao
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
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Wen Y, Liu G, Zhang Y, Li H. MicroRNA-205 is associated with diabetes mellitus-induced erectile dysfunction via down-regulating the androgen receptor. J Cell Mol Med 2019; 23:3257-3270. [PMID: 30729682 PMCID: PMC6484320 DOI: 10.1111/jcmm.14212] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 12/12/2018] [Accepted: 01/17/2019] [Indexed: 12/15/2022] Open
Abstract
As a major class of regulatory genes in majority metazoans, microRNAs (miRs) play an important role in various diseases including diabetes mellitus (DM). Lack of androgens has previously been associated with DM-induced erectile dysfunction (DMED). In addition, the biological functioning of androgen is mediated by androgen receptor (AR). Herein, we sought to investigate whether miRs participate in AR-associated DMED. Sprague-Dawlay rats were employed to establish DMED models. After modelling, levels of miR-205 and AR in their cavernous bodies were measured. The relationship between miR-205 and AR was verified using a dual-luciferase reporter gene assay. The underlying regulatory mechanisms of miR-205 were investigated in concert with the treatment of mimics or inhibitors of miR-205, or AR overexpression in the cavernous smooth muscle cells (CSMCs) isolated from rats with DMED. Meanwhile, the effects of miR-205 and AR on cell proliferation and apoptosis were evaluated using MTT assay and flow cytometry respectively. Rats with DMED presented with increased miR-205 and decreased AR levels in the cavernous bodies. AR was identified as a target gene of miR-205. Down-regulation of miR-205 or up-regulation of AR could increase proliferation and inhibits apoptosis of CSMCs in addition to improvements in the erectile functioning of rats with DMED. In summary, miR-205 may contribute to the pathogenesis of DMED via down-regulation of AR expressions.
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Affiliation(s)
- Yan Wen
- Department of EndocrinologyChina‐Japan Union Hospital of Jilin UniversityChangchunChina
| | - Guohui Liu
- Department of CardiologyChina‐Japan Union Hospital of Jilin UniversityChangchunChina
| | - Yun Zhang
- Department of UrologyChina‐Japan Union Hospital of Jilin UniversityChangchunChina
| | - Hai Li
- Department of UrologyChina‐Japan Union Hospital of Jilin UniversityChangchunChina
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7
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Lu Y, Li J, Cheng X, Li N, Miao X, Sun B, Yan S, Li C. Testosterone level in aging male with different glucose tolerance state and its association with osteocalcin. Aging Male 2019; 22:68-73. [PMID: 30039993 DOI: 10.1080/13685538.2018.1481940] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
OBJECTIVE To investigate the relationship of testosterone and different glucose tolerance state, and its association with osteocalcin. METHODS A cross-sectional study was conducted of 1176 males aged 60-97 years who were arranged for an annual regular checkup from March to May 2012 in Chinese PLA general hospital in Beijing. RESULTS Individuals categorized as having prediabetes or diabetes were more likely to have lower osteocalcin, testosterone, and SHBG levels compared to those with normal glucose tolerance (p < .05 in males). In aging males, after adjusting for age, the negative association between osteocalcin and BMI, waist circumference, FPG, 2hPBG, or TG were significant. And serum TT was negatively associated with BMI, waist circumference, FPG, 2hPBG, or TG independent of age, ALP, Ca, P, VitD, and PTH. CONCLUSIONS It showed that serum osteocalcin and TT were closely related with BMI, blood glucose, and TG, which supported the hypothesis that regulation of bone remodeling, energy metabolism, and reproduction are linked.
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Affiliation(s)
- Yanhui Lu
- a Department of Geriatric Endocrinology, Nanlou Division , Chinese PLA General Hospital, National Clinical Research Center for Geriatric Diseases , Beijing , China
| | - Jian Li
- a Department of Geriatric Endocrinology, Nanlou Division , Chinese PLA General Hospital, National Clinical Research Center for Geriatric Diseases , Beijing , China
| | - Xiaoling Cheng
- a Department of Geriatric Endocrinology, Nanlou Division , Chinese PLA General Hospital, National Clinical Research Center for Geriatric Diseases , Beijing , China
| | - Nan Li
- a Department of Geriatric Endocrinology, Nanlou Division , Chinese PLA General Hospital, National Clinical Research Center for Geriatric Diseases , Beijing , China
| | - Xinyu Miao
- a Department of Geriatric Endocrinology, Nanlou Division , Chinese PLA General Hospital, National Clinical Research Center for Geriatric Diseases , Beijing , China
| | - Banruo Sun
- a Department of Geriatric Endocrinology, Nanlou Division , Chinese PLA General Hospital, National Clinical Research Center for Geriatric Diseases , Beijing , China
| | - Shuangtong Yan
- a Department of Geriatric Endocrinology, Nanlou Division , Chinese PLA General Hospital, National Clinical Research Center for Geriatric Diseases , Beijing , China
| | - Chunlin Li
- a Department of Geriatric Endocrinology, Nanlou Division , Chinese PLA General Hospital, National Clinical Research Center for Geriatric Diseases , Beijing , China
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Groti K, Žuran I, Antonič B, Foršnarič L, Pfeifer M. The impact of testosterone replacement therapy on glycemic control, vascular function, and components of the metabolic syndrome in obese hypogonadal men with type 2 diabetes. Aging Male 2018; 21:158-169. [PMID: 29708829 DOI: 10.1080/13685538.2018.1468429] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
OBJECTIVE This study set out to assess effects of testosterone replacement therapy (TRT) on parameters of metabolic syndrome and vascular function in obese hypogonadal males with type 2 diabetes mellitus (DM2). STUDY DESIGN Fifty-five obese hypogonadal diabetic males on oral hypoglycemic treatment were enrolled into this one-year, double-blind, randomized, placebo-controlled clinical study. Group T (n = 28) was treated with testosterone undecanoate (1000 mg i.m. every 10 weeks) while group P (n = 27) received placebo. METHODS Anthropometrical and vascular measurements - flow-mediated dilatation (FMD) and intima media thickness (IMT) - biochemical and hormonal blood sample analyses were performed at the start of the study and after one year. Derived parameters (BMI, HOMA-IR, calculated free testosterone (cFT) and bioavailable testosterone (BT)) were calculated. RESULTS TRT resulted in reduction of HOMA-IR by 4.64 ± 4.25 (p < .001), HbA1c by 0.94 ± 0.88% points (p < .001), and an increase in FMD by 2.40 ± 4.16% points (p = .005). CONCLUSION TRT normalized serum testosterone levels, improved glycemic control and endothelial function while exerting no ill effects on the study population.
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Affiliation(s)
- Kristina Groti
- a Department of Endocrinology, Diabetes and Metabolic Diseases , University Medical Center , Ljubljana , Slovenia
| | - Ivan Žuran
- b Department of Angiology, Endocrinology and Rheumatology , General Hospital Celje , Celje , Slovenia
| | - Blaž Antonič
- c Blaž Antonič s.p., IT Equipment Development , Ljubljana , Slovenia
| | - Lidija Foršnarič
- b Department of Angiology, Endocrinology and Rheumatology , General Hospital Celje , Celje , Slovenia
| | - Marija Pfeifer
- d Medical Faculty , University of Ljubljana , Ljubljana , Slovenia
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Cheung KKT, Lau ESH, So WY, Ma RCW, Ozaki R, Kong APS, Chow FCC, Chan JCN, Luk AOY. Low testosterone and clinical outcomes in Chinese men with type 2 diabetes mellitus - Hong Kong Diabetes Registry. Diabetes Res Clin Pract 2017; 123:97-105. [PMID: 27997863 DOI: 10.1016/j.diabres.2016.11.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Revised: 11/13/2016] [Accepted: 11/16/2016] [Indexed: 01/23/2023]
Abstract
AIMS To assess the implications of low testosterone on cardiovascular risk factors, metabolic syndrome (MES) and clinical outcomes in Chinese men with Type 2 Diabetes (T2D). METHODS A prospective cohort study carried out in a university hospital involving a consecutive cohort of 1239 Chinese men with T2D and a median disease duration of 9years followed up for 4.8years. Clinical characteristics, frequency of MES, serum total testosterone and clinical events were analyzed. Multivariate logistic regression was performed to examine the independent association of low testosterone with MES after adjustment for confounding covariates. Cox proportional hazards regression analysis was used to derive hazard ratio for clinical outcomes. RESULTS More men with low testosterone had cardiovascular-renal disease and MES than those with normal testosterone. The adjusted odds ratio (OR) of low testosterone for MES was 2.63 (95% Confidence Interval [CI] 1.56-4.61). After a median follow-up of 4.8years, the hazard ratio (HR) of low testosterone was 2.22 (95% CI 1.23-4.01) for incident non-prostate cancer. In a multivariate Cox-regression model, the HRs were attenuated but remained significant with adjustment for MES and renal parameters. CONCLUSIONS Chinese men with low testosterone had high prevalence of cardiovascular disease and MES with high incidence non-prostate cancer.
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Affiliation(s)
- Kitty Kit-Ting Cheung
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong; Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong.
| | - Eric Siu-Him Lau
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong; Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong
| | - Wing-Yee So
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong; Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong
| | - Ronald Ching-Wan Ma
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong; Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong; Li Ka Shing Institute of Health Science, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong
| | - Risa Ozaki
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong; Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong
| | - Alice Pik-Shan Kong
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong; Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong; Li Ka Shing Institute of Health Science, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong
| | - Francis Chun-Chung Chow
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong; Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong
| | - Juliana Chung-Ngor Chan
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong; Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong; Li Ka Shing Institute of Health Science, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong
| | - Andrea On-Yan Luk
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong; Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong; Li Ka Shing Institute of Health Science, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong
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Angulo J, El Assar M, Rodríguez-Mañas L. Frailty and sarcopenia as the basis for the phenotypic manifestation of chronic diseases in older adults. Mol Aspects Med 2016; 50:1-32. [PMID: 27370407 DOI: 10.1016/j.mam.2016.06.001] [Citation(s) in RCA: 108] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 06/18/2016] [Indexed: 12/13/2022]
Abstract
Frailty is a functional status that precedes disability and is characterized by decreased functional reserve and increased vulnerability. In addition to disability, the frailty phenotype predicts falls, institutionalization, hospitalization and mortality. Frailty is the consequence of the interaction between the aging process and some chronic diseases and conditions that compromise functional systems and finally produce sarcopenia. Many of the clinical manifestations of frailty are explained by sarcopenia which is closely related to poor physical performance. Reduced regenerative capacity, malperfusion, oxidative stress, mitochondrial dysfunction and inflammation compose the sarcopenic skeletal muscle alterations associated to the frailty phenotype. Inflammation appears as a common determinant for chronic diseases, sarcopenia and frailty. The strategies to prevent the frailty phenotype include an adequate amount of physical activity and exercise as well as pharmacological interventions such as myostatin inhibitors and specific androgen receptor modulators. Cell response to stress pathways such as Nrf2, sirtuins and klotho could be considered as future therapeutic interventions for the management of frailty phenotype and aging-related chronic diseases.
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Affiliation(s)
- Javier Angulo
- Unidad de Investigación Cardiovascular (IRYCIS/UFV), Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Mariam El Assar
- Instituto de Investigación Sanitaria de Getafe, Getafe, Madrid, Spain
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Yuen JW, Ng CF, Chiu PKF, Teoh JYC, Yee CH. "Aging males" symptoms and general health of adult males: a cross-sectional study. Aging Male 2016; 19:71-8. [PMID: 27068128 DOI: 10.3109/13685538.2016.1148130] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
A cross-sectional study was conducted to explore the prevalence and severity of health-related complaints perceived by adult males of Hong Kong by using the Hong Kong Traditional Chinese versions of the Aging males' symptoms (AMS) scale and the 5-dimensional and 3-level European Quality of life (EQ-5D-3L) questionnaire. A total of 825 adult males aged 40 years or above were surveyed, and observed that 80% of the population was living with little-to-mild levels of aging symptoms with mean total scores ranged between 26.02 ± 7.91 and 32.99 ± 7.91 in different age groups. Such symptoms were correlated with age, especially for the somato-vegetative and sexual symptoms. The most severe AMS symptoms were observed in the oldest age group at 70 years or above, with 76%, 34% and 70% living with moderate-to-severe levels of somato-vegetative, psychological and sexual symptoms, respectively. The result was highly correlated with the EQ-5D-3L questionnaire. Secondly, the Hong Kong Aging males' symptoms (AMS) scale was shown to have good reliability with test-retest coefficient at 0.79 (ranged 0.66-0.87) and Cronbach's alpha coefficient at 0.88 (ranged 0.70-0.84). In summary, the population of Hong Kong male adults was commonly living with little-to-mild levels of aging symptoms, whereas their severity was correlated with age.
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Affiliation(s)
- John W Yuen
- a School of Nursing, The Hong Kong Polytechnic University , Hung Hom , Kowloon , Hong Kong , and
| | - Chi-Fai Ng
- b S. H. Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong , Shatin , Hong Kong
| | - Peter Ka Fung Chiu
- b S. H. Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong , Shatin , Hong Kong
| | - Jeremy Yuen Chun Teoh
- b S. H. Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong , Shatin , Hong Kong
| | - C H Yee
- b S. H. Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong , Shatin , Hong Kong
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Mather KJ, Kim C, Christophi CA, Aroda VR, Knowler WC, Edelstein SE, Florez JC, Labrie F, Kahn SE, Goldberg RB, Barrett-Connor E. Steroid Sex Hormones, Sex Hormone-Binding Globulin, and Diabetes Incidence in the Diabetes Prevention Program. J Clin Endocrinol Metab 2015; 100. [PMID: 26200237 PMCID: PMC4596040 DOI: 10.1210/jc.2015-2328] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT Steroid sex hormones and SHBG may modify metabolism and diabetes risk, with implications for sex-specific diabetes risk and effects of prevention interventions. OBJECTIVE This study aimed to evaluate the relationships of steroid sex hormones, SHBG and SHBG single-nucleotide polymorphisms (SNPs) with diabetes risk factors and with progression to diabetes in the Diabetes Prevention Program (DPP). DESIGN AND SETTING This was a secondary analysis of a multicenter randomized clinical trial involving 27 U.S. academic institutions. PARTICIPANTS The study included 2898 DPP participants: 969 men, 948 premenopausal women not taking exogenous sex hormones, 550 postmenopausal women not taking exogenous sex hormones, and 431 postmenopausal women taking exogenous sex hormones. INTERVENTIONS Participants were randomized to receive intensive lifestyle intervention, metformin, or placebo. MAIN OUTCOMES Associations of steroid sex hormones, SHBG, and SHBG SNPs with glycemia and diabetes risk factors, and with incident diabetes over median 3.0 years (maximum, 5.0 y). RESULTS T and DHT were inversely associated with fasting glucose in men, and estrone sulfate was directly associated with 2-hour post-challenge glucose in men and premenopausal women. SHBG was associated with fasting glucose in premenopausal women not taking exogenous sex hormones, and in postmenopausal women taking exogenous sex hormones, but not in the other groups. Diabetes incidence was directly associated with estrone and estradiol and inversely with T in men; the association with T was lost after adjustment for waist circumference. Sex steroids were not associated with diabetes outcomes in women. SHBG and SHBG SNPs did not predict incident diabetes in the DPP population. CONCLUSIONS Estrogens and T predicted diabetes risk in men but not in women. SHBG and its polymorphisms did not predict risk in men or women. Diabetes risk is more potently determined by obesity and glycemia than by sex hormones.
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Affiliation(s)
- K J Mather
- Department of Medicine (K.J.M.), Indiana University, Indianapolis, Indiana 46202; Departments of Medicine and Obstetrics & Gynecology (C.K.), University of Michigan, Ann Arbor, Michigan 48109; Biostatistics Center (C.A.C., S.E.E.), George Washington University, Rockville, Maryland 20850; Medstar Health Research Institute (V.R.A.), Hyattsville, Maryland 20782; National Institute of Diabetes and Digestive and Kidney Diseases (W.C.K.), Phoenix, Arizona 85014; Diabetes Research Center (Diabetes Unit) and Center for Human Genetics Research (J.C.F.), Massachusetts General Hospital, Boston, Massachusetts 02114; Program in Medical and Population Genetics (J.C.F.), Broad Institute, Cambridge, Massachusetts 02142; Department of Medicine (J.C.F.), Harvard Medical School, Boston, Massachusetts 02115; Endoceutics Inc. (F.L.), Québec City, G1W 2J5, Canada; VA Puget Sound Health Care System and University of Washington (S.E.K.), Seattle, Washington 98108; University of Miami (R.B.G.), Miami, Florida 33124; and University of California, San Diego (E.B.-C.), San Diego, California 92093
| | - C Kim
- Department of Medicine (K.J.M.), Indiana University, Indianapolis, Indiana 46202; Departments of Medicine and Obstetrics & Gynecology (C.K.), University of Michigan, Ann Arbor, Michigan 48109; Biostatistics Center (C.A.C., S.E.E.), George Washington University, Rockville, Maryland 20850; Medstar Health Research Institute (V.R.A.), Hyattsville, Maryland 20782; National Institute of Diabetes and Digestive and Kidney Diseases (W.C.K.), Phoenix, Arizona 85014; Diabetes Research Center (Diabetes Unit) and Center for Human Genetics Research (J.C.F.), Massachusetts General Hospital, Boston, Massachusetts 02114; Program in Medical and Population Genetics (J.C.F.), Broad Institute, Cambridge, Massachusetts 02142; Department of Medicine (J.C.F.), Harvard Medical School, Boston, Massachusetts 02115; Endoceutics Inc. (F.L.), Québec City, G1W 2J5, Canada; VA Puget Sound Health Care System and University of Washington (S.E.K.), Seattle, Washington 98108; University of Miami (R.B.G.), Miami, Florida 33124; and University of California, San Diego (E.B.-C.), San Diego, California 92093
| | - C A Christophi
- Department of Medicine (K.J.M.), Indiana University, Indianapolis, Indiana 46202; Departments of Medicine and Obstetrics & Gynecology (C.K.), University of Michigan, Ann Arbor, Michigan 48109; Biostatistics Center (C.A.C., S.E.E.), George Washington University, Rockville, Maryland 20850; Medstar Health Research Institute (V.R.A.), Hyattsville, Maryland 20782; National Institute of Diabetes and Digestive and Kidney Diseases (W.C.K.), Phoenix, Arizona 85014; Diabetes Research Center (Diabetes Unit) and Center for Human Genetics Research (J.C.F.), Massachusetts General Hospital, Boston, Massachusetts 02114; Program in Medical and Population Genetics (J.C.F.), Broad Institute, Cambridge, Massachusetts 02142; Department of Medicine (J.C.F.), Harvard Medical School, Boston, Massachusetts 02115; Endoceutics Inc. (F.L.), Québec City, G1W 2J5, Canada; VA Puget Sound Health Care System and University of Washington (S.E.K.), Seattle, Washington 98108; University of Miami (R.B.G.), Miami, Florida 33124; and University of California, San Diego (E.B.-C.), San Diego, California 92093
| | - V R Aroda
- Department of Medicine (K.J.M.), Indiana University, Indianapolis, Indiana 46202; Departments of Medicine and Obstetrics & Gynecology (C.K.), University of Michigan, Ann Arbor, Michigan 48109; Biostatistics Center (C.A.C., S.E.E.), George Washington University, Rockville, Maryland 20850; Medstar Health Research Institute (V.R.A.), Hyattsville, Maryland 20782; National Institute of Diabetes and Digestive and Kidney Diseases (W.C.K.), Phoenix, Arizona 85014; Diabetes Research Center (Diabetes Unit) and Center for Human Genetics Research (J.C.F.), Massachusetts General Hospital, Boston, Massachusetts 02114; Program in Medical and Population Genetics (J.C.F.), Broad Institute, Cambridge, Massachusetts 02142; Department of Medicine (J.C.F.), Harvard Medical School, Boston, Massachusetts 02115; Endoceutics Inc. (F.L.), Québec City, G1W 2J5, Canada; VA Puget Sound Health Care System and University of Washington (S.E.K.), Seattle, Washington 98108; University of Miami (R.B.G.), Miami, Florida 33124; and University of California, San Diego (E.B.-C.), San Diego, California 92093
| | - W C Knowler
- Department of Medicine (K.J.M.), Indiana University, Indianapolis, Indiana 46202; Departments of Medicine and Obstetrics & Gynecology (C.K.), University of Michigan, Ann Arbor, Michigan 48109; Biostatistics Center (C.A.C., S.E.E.), George Washington University, Rockville, Maryland 20850; Medstar Health Research Institute (V.R.A.), Hyattsville, Maryland 20782; National Institute of Diabetes and Digestive and Kidney Diseases (W.C.K.), Phoenix, Arizona 85014; Diabetes Research Center (Diabetes Unit) and Center for Human Genetics Research (J.C.F.), Massachusetts General Hospital, Boston, Massachusetts 02114; Program in Medical and Population Genetics (J.C.F.), Broad Institute, Cambridge, Massachusetts 02142; Department of Medicine (J.C.F.), Harvard Medical School, Boston, Massachusetts 02115; Endoceutics Inc. (F.L.), Québec City, G1W 2J5, Canada; VA Puget Sound Health Care System and University of Washington (S.E.K.), Seattle, Washington 98108; University of Miami (R.B.G.), Miami, Florida 33124; and University of California, San Diego (E.B.-C.), San Diego, California 92093
| | - S E Edelstein
- Department of Medicine (K.J.M.), Indiana University, Indianapolis, Indiana 46202; Departments of Medicine and Obstetrics & Gynecology (C.K.), University of Michigan, Ann Arbor, Michigan 48109; Biostatistics Center (C.A.C., S.E.E.), George Washington University, Rockville, Maryland 20850; Medstar Health Research Institute (V.R.A.), Hyattsville, Maryland 20782; National Institute of Diabetes and Digestive and Kidney Diseases (W.C.K.), Phoenix, Arizona 85014; Diabetes Research Center (Diabetes Unit) and Center for Human Genetics Research (J.C.F.), Massachusetts General Hospital, Boston, Massachusetts 02114; Program in Medical and Population Genetics (J.C.F.), Broad Institute, Cambridge, Massachusetts 02142; Department of Medicine (J.C.F.), Harvard Medical School, Boston, Massachusetts 02115; Endoceutics Inc. (F.L.), Québec City, G1W 2J5, Canada; VA Puget Sound Health Care System and University of Washington (S.E.K.), Seattle, Washington 98108; University of Miami (R.B.G.), Miami, Florida 33124; and University of California, San Diego (E.B.-C.), San Diego, California 92093
| | - J C Florez
- Department of Medicine (K.J.M.), Indiana University, Indianapolis, Indiana 46202; Departments of Medicine and Obstetrics & Gynecology (C.K.), University of Michigan, Ann Arbor, Michigan 48109; Biostatistics Center (C.A.C., S.E.E.), George Washington University, Rockville, Maryland 20850; Medstar Health Research Institute (V.R.A.), Hyattsville, Maryland 20782; National Institute of Diabetes and Digestive and Kidney Diseases (W.C.K.), Phoenix, Arizona 85014; Diabetes Research Center (Diabetes Unit) and Center for Human Genetics Research (J.C.F.), Massachusetts General Hospital, Boston, Massachusetts 02114; Program in Medical and Population Genetics (J.C.F.), Broad Institute, Cambridge, Massachusetts 02142; Department of Medicine (J.C.F.), Harvard Medical School, Boston, Massachusetts 02115; Endoceutics Inc. (F.L.), Québec City, G1W 2J5, Canada; VA Puget Sound Health Care System and University of Washington (S.E.K.), Seattle, Washington 98108; University of Miami (R.B.G.), Miami, Florida 33124; and University of California, San Diego (E.B.-C.), San Diego, California 92093
| | - F Labrie
- Department of Medicine (K.J.M.), Indiana University, Indianapolis, Indiana 46202; Departments of Medicine and Obstetrics & Gynecology (C.K.), University of Michigan, Ann Arbor, Michigan 48109; Biostatistics Center (C.A.C., S.E.E.), George Washington University, Rockville, Maryland 20850; Medstar Health Research Institute (V.R.A.), Hyattsville, Maryland 20782; National Institute of Diabetes and Digestive and Kidney Diseases (W.C.K.), Phoenix, Arizona 85014; Diabetes Research Center (Diabetes Unit) and Center for Human Genetics Research (J.C.F.), Massachusetts General Hospital, Boston, Massachusetts 02114; Program in Medical and Population Genetics (J.C.F.), Broad Institute, Cambridge, Massachusetts 02142; Department of Medicine (J.C.F.), Harvard Medical School, Boston, Massachusetts 02115; Endoceutics Inc. (F.L.), Québec City, G1W 2J5, Canada; VA Puget Sound Health Care System and University of Washington (S.E.K.), Seattle, Washington 98108; University of Miami (R.B.G.), Miami, Florida 33124; and University of California, San Diego (E.B.-C.), San Diego, California 92093
| | - S E Kahn
- Department of Medicine (K.J.M.), Indiana University, Indianapolis, Indiana 46202; Departments of Medicine and Obstetrics & Gynecology (C.K.), University of Michigan, Ann Arbor, Michigan 48109; Biostatistics Center (C.A.C., S.E.E.), George Washington University, Rockville, Maryland 20850; Medstar Health Research Institute (V.R.A.), Hyattsville, Maryland 20782; National Institute of Diabetes and Digestive and Kidney Diseases (W.C.K.), Phoenix, Arizona 85014; Diabetes Research Center (Diabetes Unit) and Center for Human Genetics Research (J.C.F.), Massachusetts General Hospital, Boston, Massachusetts 02114; Program in Medical and Population Genetics (J.C.F.), Broad Institute, Cambridge, Massachusetts 02142; Department of Medicine (J.C.F.), Harvard Medical School, Boston, Massachusetts 02115; Endoceutics Inc. (F.L.), Québec City, G1W 2J5, Canada; VA Puget Sound Health Care System and University of Washington (S.E.K.), Seattle, Washington 98108; University of Miami (R.B.G.), Miami, Florida 33124; and University of California, San Diego (E.B.-C.), San Diego, California 92093
| | - R B Goldberg
- Department of Medicine (K.J.M.), Indiana University, Indianapolis, Indiana 46202; Departments of Medicine and Obstetrics & Gynecology (C.K.), University of Michigan, Ann Arbor, Michigan 48109; Biostatistics Center (C.A.C., S.E.E.), George Washington University, Rockville, Maryland 20850; Medstar Health Research Institute (V.R.A.), Hyattsville, Maryland 20782; National Institute of Diabetes and Digestive and Kidney Diseases (W.C.K.), Phoenix, Arizona 85014; Diabetes Research Center (Diabetes Unit) and Center for Human Genetics Research (J.C.F.), Massachusetts General Hospital, Boston, Massachusetts 02114; Program in Medical and Population Genetics (J.C.F.), Broad Institute, Cambridge, Massachusetts 02142; Department of Medicine (J.C.F.), Harvard Medical School, Boston, Massachusetts 02115; Endoceutics Inc. (F.L.), Québec City, G1W 2J5, Canada; VA Puget Sound Health Care System and University of Washington (S.E.K.), Seattle, Washington 98108; University of Miami (R.B.G.), Miami, Florida 33124; and University of California, San Diego (E.B.-C.), San Diego, California 92093
| | - E Barrett-Connor
- Department of Medicine (K.J.M.), Indiana University, Indianapolis, Indiana 46202; Departments of Medicine and Obstetrics & Gynecology (C.K.), University of Michigan, Ann Arbor, Michigan 48109; Biostatistics Center (C.A.C., S.E.E.), George Washington University, Rockville, Maryland 20850; Medstar Health Research Institute (V.R.A.), Hyattsville, Maryland 20782; National Institute of Diabetes and Digestive and Kidney Diseases (W.C.K.), Phoenix, Arizona 85014; Diabetes Research Center (Diabetes Unit) and Center for Human Genetics Research (J.C.F.), Massachusetts General Hospital, Boston, Massachusetts 02114; Program in Medical and Population Genetics (J.C.F.), Broad Institute, Cambridge, Massachusetts 02142; Department of Medicine (J.C.F.), Harvard Medical School, Boston, Massachusetts 02115; Endoceutics Inc. (F.L.), Québec City, G1W 2J5, Canada; VA Puget Sound Health Care System and University of Washington (S.E.K.), Seattle, Washington 98108; University of Miami (R.B.G.), Miami, Florida 33124; and University of California, San Diego (E.B.-C.), San Diego, California 92093
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Rabijewski M, Papierska L, Piątkiewicz P. Late-onset hypogonadism among old and middle-aged males with prediabetes in Polish population. Aging Male 2015; 18:16-21. [PMID: 25657079 DOI: 10.3109/13685538.2015.1004048] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVES Around 40% of diabetic men have lowered testosterone and symptoms of hypogonadism but the prevalence of hypogonadism among prediabetic men is unknown. The aim of this study was to investigate the prevalence of late-onset hypogonadism (LOH) in population of Polish men with prediabetes. METHODS This study was performed in 196 prediabetic men and in 184 normoglycemic, control group. Prediabetes was defined as impaired fasting glucose, impaired glucose tolerance and/or HbA1c 5.7-6.4%. LOH was defined as low libido, diminished frequency of morning erections and erectile dysfunctions in men with total testosterone <12 nmol/l. RESULTS Total testosterone (TT) level in prediabetes group was 11.78 ± 1.76 and 16.37 ± 1.6 nmol/l in control group (p < 0.001). LOH was diagnosed in 30% prediabetic men and in 13.6% control men. There were negative relationships between calculated free testosterone (cFT) and HbA1c (r = -0.3856; p < 0.005). In prediabetic group, TT and cFT levels were lower in patients with impaired glucose tolerance than impaired fasting glucose (p < 0.05 and p < 0.02, respectively). We showed inverse relationships between IIEF-5 score and cFT (r = -0.414, p < 0.005) and between IIEF-5 and HbA1c (r = -0.395, p < 0.002). CONCLUSIONS In population of Polish men with prediabetes we observed high prevalence of LOH. Routine testosterone screening should be performed in all prediabetic men.
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Affiliation(s)
- Michał Rabijewski
- Department of Internal Diseases, Diabetology and Endocrinology, Medical University of Warsaw , Poland and
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The effect of diet-induced insulin resistance on DNA methylation of the androgen receptor promoter in the penile cavernosal smooth muscle of mice. Asian J Androl 2013; 15:487-91. [PMID: 23728591 DOI: 10.1038/aja.2013.26] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Revised: 01/31/2013] [Accepted: 03/10/2013] [Indexed: 01/26/2023] Open
Abstract
Population studies have suggested an association between diabetes and the symptoms of testosterone deficiency. Recently, the expression of the androgen receptor (AR) has been shown to be decreased in diabetic patients. Furthermore, diabetes has been shown to induce global methylation. In this study, we used an animal model to investigate whether diabetes results in increased methylation of the AR promoter and whether these changes are associated with the decreased expression of AR in penile cavernosal smooth muscle tissue. Twenty C57BL/6J mice were divided into two groups, receiving either high- (mature diabetic) or low- (mature control) caloric meals for 14 weeks. Another 10 mice were killed at 1 week (young control). Animals in the mature diabetic group showed decreased testosterone levels, although this was not statistically significant. In both control groups, no significant methylation was observed in the AR promoter region CpG island (-85 to +339). In the mature diabetic group, significant methylation was observed at +185 and +200 of the AR promoter. These changes were associated with increased homeostatic model assessment for insulin resistance (HOMA-IR) and decreased corpus cavernosal tissue mass and expression of AR mRNA and protein. We conclude that in these animals, insulin resistance increased the methylation of the GC-rich regions of the AR promoter, leading to decreased AR expression.
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Hassan A, Mohammad L, Nassar A, Abd-Elazeem M, Abaza M. Immunohistochemical study of estrogen and androgen receptors in skin tags. J Microsc Ultrastruct 2013. [DOI: 10.1016/j.jmau.2013.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Current world literature. Curr Opin Endocrinol Diabetes Obes 2012; 19:233-47. [PMID: 22531108 DOI: 10.1097/med.0b013e3283542fb3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Cao J, Chen TM, Hao WJ, Li J, Liu L, Zhu BP, Li XY. Correlation between sex hormone levels and obesity in the elderly male. Aging Male 2012; 15:85-9. [PMID: 22452321 DOI: 10.3109/13685538.2012.666585] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE To investigate the levels of sex hormones and androgen receptor (AR) in elderly male patients and to explore a possible correlation with obesity. METHODS The cross-sectional study included 314 Elderly males (age ≥ 65 year). Of these subjects, 104 were healthy (age range 65-92 year; mean 71.38 ± 5.154 year), 74 were obese (65-87 year; 71.32 ± 4.74 year), and 111 were overweight (65-85 year; 71.43 ± 5.03 year). The following parameters were measured: total testosterone (TT), free testosterone, dehydroepiandrosterone sulfate, sex hormone-binding globulin (SHBG), estradiol (E2), luteinizing hormone, follicle-stimulating hormone and AR. RESULTS (i) The levels of TT and SHBG in the obesity group were significantly lower than those in non-obese subjects. (ii) Body mass index (BMI) negatively correlated with TT and SHBG. (iii) Multiple regression analysis revealed that TT (β: -0.230; p = 0.045) and SHBG (β: -0.163; p = 0.02) were statistically correlated with BMI. CONCLUSION Testosterone levels in the obese population were significantly lower than in the non-obese population and there is a significant association between testosterone levels and the extent of obesity.
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Affiliation(s)
- Jian Cao
- First Geriatric Cardiology Division, Chinese PLA General Hospital, Beijing, PR China.
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