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Wang C, Zhang H, Wang F, Guo J, Yuan J, Hou G, Gao M, Li Z, Zhang Y. Efficacy and safety of PDE5 inhibitors in middle-aged and old patients with and without hypogonadism. Aging Male 2024; 27:2288347. [PMID: 38146937 DOI: 10.1080/13685538.2023.2288347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 11/19/2023] [Indexed: 12/27/2023] Open
Abstract
PURPOSE Although several reviews have evaluated the use of PDE5 inhibitors (PDE5i) for treating erectile dysfunction (ED), their specific use in middle-aged and old patients has not been fully evaluated. Given that elderly patients with ED often have a complex combination of systemic and sexual health risk factors, the safety and efficacy of PDE5i in such a context are hereby reviewed. MATERIALS AND METHODS A thorough examination of existing literature has been conducted on PubMed. RESULTS PDE5i has good safety and efficacy, but the situation is more complex for patients with hypogonadism than those with normal testosterone levels, with reduced responsiveness to PDE5i. In this case, combination therapy with testosterone is recommended, safe and effective. CONCLUSIONS Eliminating or reducing reversible risk factors and controlling or slowing the development of irreversible factors is an important foundation for using PDE5i to treat ED in all patients, especially middle-aged and elderly ones.
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Affiliation(s)
- Chunlin Wang
- Chair of Endocrinology and Medical Sexology (ENDOSEX), Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Hui Zhang
- Chair of Endocrinology and Medical Sexology (ENDOSEX), Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Fu Wang
- Department of Andrology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, China
| | - Jun Guo
- Department of Andrology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, China
| | - Jianlin Yuan
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Guangdong Hou
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Ming Gao
- Department of Andrology, Xi'an Daxing Hospital affiliated to Yan'an University, Xi'an, China
| | - Zheng Li
- Shanghai Key Laboratory of Reproductive Medicine, Department of Andrology, Center for Men's Health, Urologic Medical Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yan Zhang
- Department of Infertility and Sexual Medicine, 3rd Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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Wang J, Yang Y, Xu Y, Xu Z, Zhao X, Jia R, Dai Y. Long noncoding RNA XIST inhibition promotes Leydig cell apoptosis by acting as a competing endogenous RNA for microRNA-145a-5p that targets SIRT1 in late-onset hypogonadism. Cell Tissue Res 2024; 395:285-297. [PMID: 38353742 DOI: 10.1007/s00441-024-03860-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 01/04/2024] [Indexed: 03/01/2024]
Abstract
Leydig cell (LCs) apoptosis is responsible for decreased serum testosterone levels during late-onset hypogonadism (LOH). Our study was designed to illustrate the regulatory effect of lncRNA XIST on LCs and to clarify its molecular mechanism of action in LOH. The Leydig cells (TM3) was treated by 300 μM H2O2 for 8 h to establish Leydig cell oxidative stress model in vitro. The expression levels of lncRNA XIST in the testicular tissues of patients with LOH were measured using fluorescence in situ hybridization (FISH). The interaction between lncRNA XIST/SIRT1 and miR-145a-5p was assessed using starBase and dual-luciferase reporter gene assays. Apoptotic cells and Caspase3 activity were determined by flow cytometry (FCM) assay. Testosterone concentration was determined by ELISA. Moreover, histological assessment of testicles in mice was performed by using HE staining and the TUNEL assay was used to determine apoptosis. We found that the lncRNA XIST was downregulated in the testicular tissues of LOH patients and mice and in H2O2-induced TM3 cells. XIST siRNA significantly promoted apoptosis, enhanced Caspase3 activity and reduced testosterone levels in H2O2-stimulated TM3 cells. Further studies showed that the miR-145a-5p inhibitor reversed the effect of XIST-siRNA on H2O2-induced Leydig cell apoptosis. MiR-145a-5p negatively regulated SIRT1 expression, and SIRT1-siRNA reversed the effects of the miR-145a-5p inhibitor on H2O2 stimulated TM3 cells. The in vivo experiments indicated that silencing of the lncRNA XIST aggravated LOH symptoms in mice. Inhibition of lncRNA XIST induces Leydig cell apoptosis through the miR-145a-5p/SIRT1 axis in the progression of LOH.
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Affiliation(s)
- Jing Wang
- Department of Urology, Nanjing First Hospital, Nanjing Medical University, No. 68 Changle Road, Qinhuai District, Nanjing, 210006, China
- Department of Andrology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 321 Zhongshan Road, Gulou District, Nanjing, 210008, China
| | - Yiqiong Yang
- Department of Emergency, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Yang Xu
- Department of Andrology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 321 Zhongshan Road, Gulou District, Nanjing, 210008, China
| | - Zhipeng Xu
- Department of Andrology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 321 Zhongshan Road, Gulou District, Nanjing, 210008, China
| | - Xiaozhi Zhao
- Department of Andrology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 321 Zhongshan Road, Gulou District, Nanjing, 210008, China
| | - Ruipeng Jia
- Department of Urology, Nanjing First Hospital, Nanjing Medical University, No. 68 Changle Road, Qinhuai District, Nanjing, 210006, China.
| | - Yutian Dai
- Department of Andrology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 321 Zhongshan Road, Gulou District, Nanjing, 210008, China.
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3
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Viken AF, Siiak SP, Schlünssen V, Thorarinsdottir EH, Skulstad SM, Gyawali S, Bertelsen RJ, Real FG. Muscle Strength and Male Sexual Function. J Clin Med 2024; 13:426. [PMID: 38256560 PMCID: PMC10816204 DOI: 10.3390/jcm13020426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 01/03/2024] [Accepted: 01/08/2024] [Indexed: 01/24/2024] Open
Abstract
Sexual dysfunction, in particular erectile dysfunction, is a common complaint among aging men. Obesity, diabetes, hypertension, and smoking are shown to be independent risk factors for erectile dysfunction, while cardiorespiratory fitness is shown to be protective. Less is known about the role of muscle strength in male sexual function. Our objective was to study the association between male sexual function and typical cardiovascular risk factors, together with exercise and muscle strength. We included data from the fourth wave of the RHINE study. Data on anthropometrics, exercise habits, diseases, muscle strength, and sexual function were collected using questionnaires, including the Aging Males' Symptoms (AMS) scale. We used multivariable logistic regression analysis to measure the association between sexual function and body mass index (BMI), age, smoking, diabetes, hypertension, exercise and muscle strength status. We included 2116 men aged 48-75 from four Nordic-Baltic countries. BMI, age, smoking, diabetes, and hypertension were found to be associated with higher odds of reporting decreased sexual function, while reporting intact muscle strength was associated with lower odds. In a large Nordic-Baltic male study population, we show that known cardiovascular risk factors are associated with decreased sexual function, while reporting intact muscle strength is associated with lower odds of reporting decreased sexual function.
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Affiliation(s)
- Anders Flataker Viken
- Department of Clinical Science, University of Bergen, 5021 Bergen, Norway; (R.J.B.); (F.G.R.)
| | | | - Vivi Schlünssen
- Research Unit for Environment, Occupation and Health, Danish Ramazzini Centre, Aarhus University, 8000 Aarhus, Denmark;
- Department of Public Health, Aarhus University, 8000 Aarhus, Denmark
| | | | - Svein Magne Skulstad
- Department of Occupational Medicine, Haukeland University Hospital, 5021 Bergen, Norway (S.G.)
| | - Sanjay Gyawali
- Department of Occupational Medicine, Haukeland University Hospital, 5021 Bergen, Norway (S.G.)
| | | | - Francisco Gómez Real
- Department of Clinical Science, University of Bergen, 5021 Bergen, Norway; (R.J.B.); (F.G.R.)
- Department of Gynecology and Obstetrics, Haukeland University Hospital, 5021 Bergen, Norway
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Xia K, Yu J, Liu G, Chen H, Ge R, Deng C. Editorial: Aging and male hypogonadism. Front Endocrinol (Lausanne) 2023; 14:1207907. [PMID: 37274335 PMCID: PMC10236361 DOI: 10.3389/fendo.2023.1207907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 05/10/2023] [Indexed: 06/06/2023] Open
Affiliation(s)
- Kai Xia
- Center for Stem Cells and Regenerative Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Jiajie Yu
- Department of Urology and Andrology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Guihua Liu
- Reproductive Medicine Center, Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Haolin Chen
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
- Department of Anesthesiology, Perioperative Medicine, Zhejiang Province Key Lab of Anesthesiology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Renshan Ge
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Chunhua Deng
- Department of Urology and Andrology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Chen H, Chen K, Zhao F, Guo Y, Liang Y, Wang Z, Liu T, Chen S. Macroautophagy involved in testosterone synthesis in Leydig cells of male dairy goat (Capra hircus). Theriogenology 2021; 180:53-62. [PMID: 34952391 DOI: 10.1016/j.theriogenology.2021.12.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 11/23/2021] [Accepted: 12/16/2021] [Indexed: 10/19/2022]
Abstract
Testosterone is an important steroid hormone that is indispensable for male sexual development and the reproductive system. Leydig cells (LCs), where autophagy is extremely active, reside in the testicular interstitium and are the major sites of testosterone production. However, the ultrastructural characteristics and the functional role of autophagy in LCs of livestock remain unknown. In this study, the LCs of the dairy goats were investigated to identify the steroidogenic activity and autophagy levels at different ages of development by light microscopy, immunohistochemistry (IHC), immunofluorescence (IF), and transmission electron microscopy (TEM). Morphological results showed that the steroidogenic activity (3β-HSD staining) and ultrastructural characteristics of the LCs were changed with increasing age. TEM results demonstrated that the organelles involved in testosterone synthesis, e.g., smooth endoplasmic reticulum, mitochondria, and lipid droplets, were abundantly distributed within the cytoplasm of LCs in pubertal and adult testes. Moreover, autophagy activity was enhanced in the testes at pubertal and adult stages compared with that at the juvenile stage. Several different autophagic vacuoles, including pre-autophagosomes, autophagosomes, and autolysosomes, were observed within the cytoplasm of LCs from pubertal and adult testes. However, immunofluorescent staining and TEM results showed that no typical lipophagic or mitophagic vacuoles were observed in the cytoplasm of LCs. Furthermore, primary LCs from dairy goats were used to study the effect of autophagy on testosterone production. After treatment with 3-methyladenine (3-MA, an autophagy inhibitor), the primary LCs decreased testosterone production. In contrast, treatment with rapamycin (an autophagy activator), enhanced steroidogenesis in LCs. Collectively, these in vivo and in vitro results suggested that autophagy activity is related to steroidogenesis in LCs of dairy goats, which may ultimately influence the spermatogenesis and fertility of these animals.
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Affiliation(s)
- Hong Chen
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, China
| | - Kexing Chen
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, China
| | - Fange Zhao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, China
| | - Yihan Guo
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, China
| | - Yue Liang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, China
| | - Zhengrong Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, China
| | - Tengfei Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, China.
| | - Shulin Chen
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, China.
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6
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Qu M, Zhao Y, Qing X, Zhang X, Li H. Androgen-dependent miR-125a-5p targets LYPLA1 and regulates global protein palmitoylation level in late-onset hypogonadism males. J Cell Physiol 2021; 236:4738-4749. [PMID: 33284463 DOI: 10.1002/jcp.30195] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 11/18/2020] [Accepted: 11/23/2020] [Indexed: 12/23/2022]
Abstract
Late-onset hypogonadism (LOH) is defined as a clinical and biochemical syndrome with multiple symptoms caused by testosterone deficiency in aging males. An in-depth exploration of the molecular mechanism underlying LOH development is insufficient. We previously identified miR-125a-5p as a dysregulated microRNA in LOH patients and potential diagnostic biomarker for LOH. The present study demonstrated that plasma miR-125a-5p was upregulated after testosterone supplementation in both LOH patients and castrated mice, and positively associated with the testosterone concentrations, suggesting direct regulation of miR-125a-5p expression by testosterone. Androgen response element in the promoter of miR-125a-5p was subsequently identified. Target gene screening and confirmation verified that LYPLA1, encoding acyl-protein thioesterase 1 which catalyzed protein depalmitoylation process, was a target gene of miR-125a-5p. Furthermore, in cells cultured with testosterone deprivation and organs from castrated mice, testosterone deficiency led to decreased global protein palmitoylation level. In aging males, global protein palmitoylation in peripheral blood showed a notable decline in LOH patients contrast to the normal elderly males. And the palmitoylation level was positively correlative with serum testosterone concentrations. Our results suggested that testosterone could regulate global palmitoylation level through miR-125a-5p/LYPLA1 signaling pathway. Given that protein palmitoylation is pivotal for protein function and constitutes the pathogenesis of various diseases, testosterone/miR-125a-5p/LYPLA1 may contribute to the molecular mechanism underlying multiple symptoms caused by testosterone deficiency in LOH patients, and aberrant global palmitoylation could be a potential biomarker for LOH.
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Affiliation(s)
- Mengyuan Qu
- Institute of Reproductive Health/Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yunhan Zhao
- Institute of Reproductive Health/Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xingrong Qing
- Institute of Reproductive Health/Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xinzong Zhang
- NHC Key Laboratory of Male Reproduction and Genetics, Family Planning Research Institute of Guangdong Province, Guangzhou, China
| | - Honggang Li
- Institute of Reproductive Health/Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Wuhan Tongji Reproductive Medicine Hospital, Wuhan, China
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7
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Liu Q, Peng X, Gu Y, Shang X, Zhou Y, Zhang H, Zuo L, Mei G, Xiong C, Li H, Kong X. Associations between smoking, sex hormone levels and late-onset hypogonadism in men differ depending on age. Aging (Albany NY) 2021; 13:5226-5237. [PMID: 33535188 PMCID: PMC7950239 DOI: 10.18632/aging.202442] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 12/10/2020] [Indexed: 12/12/2022]
Abstract
Few studies have investigated whether associations between smoking, sex hormone levels, and symptoms of late-onset hypogonadism (LOH) in men are affected by age. This multi-center, cross-sectional study involving 6,296 men aged 40-79 years was conducted between June 1, 2013 and August 31, 2016 in 6 provinces of China. Total testosterone, free testosterone, and Aging Males’ Symptoms scale (AMS) scores were compared depending on smoking status and the number of cigarettes smoked. Total testosterone was higher in smokers than in non-smokers in all except the 70-79 year old subgroup. Free testosterone was higher in smokers than non-smokers for the 40-49 and 50-59 year old subgroups, but not the 60-69 and 70-79 year old subgroups. Total testosterone was positively associated with number of cigarettes consumed in smokers aged 40-49 and 50-59 years. Sexual and somatic AMS scores were higher in current and ex-smokers than in non-smokers in all age subgroups from 40 to 79 years and were negatively associated with cigarette consumption in smokers aged 40-49 years. These results indicate that, as men age, the positive association between smoking and testosterone weakens, while the positive association between smoking and LOH symptoms becomes stronger.
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Affiliation(s)
- Qian Liu
- Center for Reproductive Medicine, Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China.,Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xiangchi Peng
- Center for Reproductive Medicine, Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China
| | - Yiqun Gu
- National Health and Family Planning Key Laboratory of Male Reproductive Health, National Research Institute for Family Planning, Beijing 100000, China
| | - Xuejun Shang
- Department of Andrology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing 210093, China
| | - Yuanzhong Zhou
- School of Public Health, Zunyi Medical University, Zunyi 563000, Guizhou, China
| | - Huiping Zhang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.,Wuhan Tongji Reproductive Medicine Hospital, Wuhan 563000, China
| | - Liandong Zuo
- Guangzhou Women and Children's Medical Center, Guangzhou 510000, China
| | - Guangan Mei
- Technical Guidance Institute of Shanxi Province Family Planning Commission, Xi'an 710000, China
| | - Chengliang Xiong
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.,Wuhan Tongji Reproductive Medicine Hospital, Wuhan 563000, China
| | - Honggang Li
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.,Wuhan Tongji Reproductive Medicine Hospital, Wuhan 563000, China
| | - Xiangbin Kong
- Department of Reproductive Medicine, First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
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Chen Y, Wang J, Xu D, Xiang Z, Ding J, Yang X, Li D, Han X. m 6A mRNA methylation regulates testosterone synthesis through modulating autophagy in Leydig cells. Autophagy 2021; 17:457-475. [PMID: 31983283 PMCID: PMC8007139 DOI: 10.1080/15548627.2020.1720431] [Citation(s) in RCA: 87] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Revised: 01/18/2020] [Accepted: 01/20/2020] [Indexed: 12/21/2022] Open
Abstract
Macroautophagy/autophagy is indispensable for testosterone synthesis in Leydig cells (LCs), and here we report a negative association between m6A modification and autophagy in LCs during testosterone synthesis. A gradual decrease of METTL14 (methyltransferase like 14) and an increase of ALKBH5 (alkB homolog 5, RNA demethylase) were observed in LCs during their differentiation from stem LCs to adult LCs. These events led to reduced mRNA methylation levels of N6-methyladenosine (m6A) and enhanced autophagy in LCs. Similar regulation of METTL14, ALKBH5, and m6A was also observed in LCs upon treatment with human chorionic gonadotropin (HsCG). Mechanistically, m6A modification promoted translation of PPM1A (protein phosphatase 1A, magnesium dependent, alpha isoform), a negative AMP-activated protein kinase (AMPK) regulator, but decreased expression of CAMKK2 (calcium/calmodulin-dependent protein kinase kinase 2, beta), a positive AMPK regulator, by reducing its RNA stability. Thus, m6A modification resulted in reduced AMPK activity and subsequent autophagy inhibition. We further demonstrated that ALKBH5 upregulation by HsCG was dependent on enhanced binding of the transcriptional factor CEBPB (CCAAT/enhancer binding protein [C/EBP], beta) and the TFEB (transcription factor EB) to its gene promoter. Moreover, HsCG treatment decreased METTL14 by reducing its stability. Collectively, this study highlights a vital role of m6A RNA methylation in the modulation of testosterone synthesis in LCs, providing insight into novel therapeutic strategies by exploiting m6A RNA methylation as targets for treating azoospermatism and oligospermatism patients with reduction in serum testosterone.Abbreviations: 3-MA: 3-methyladenine; ACTB: Actin, beta; ALKBH5: alkB homolog 5, RNA demethylase; AMPK: AMP-activated protein kinase; BafA1: bafilomycin A1; CAMKK2: calcium/calmodulin-dependent protein kinase kinase 2, beta; CEBPB: CCAAT/enhancer-binding protein (C/EBP), beta; ChIP: chromatin immunoprecipitation; FTO: fat mass and obesity associated; HsCG: human chorionic gonadotropin; HSD3B: 3β-hydroxysteroid dehydrogenase; LCs: Leydig cells; m6A: N6-methyladenosine; METTL14: methyltransferase like 14; METTL3: methyltransferase like 3; MTOR: mechanistic target of rapamycin kinase; PPM1A: protein phosphatase 1A, magnesium dependent, alpha isoform; PRKAA: 5'-AMP-activated protein kinase catalytic subunit alpha; SQSTM1: sequestosome 1; STK11/LKB1: serine/threonine kinase 11; TFEB: transcription factor EB; ULK1: unc-51-like kinase 1; WTAP: Wilms tumor 1-associating protein; YTHDF: YTH N6-methyladenosine RNA binding protein.
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Affiliation(s)
- Yabing Chen
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, China
| | - Jing Wang
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, China
| | - Dihui Xu
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, China
| | - Zou Xiang
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, The Hong Kong Polytechnic University, Hong Kong, China
| | - Jie Ding
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, China
| | - Xiaoyu Yang
- State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, The First Hospital of Nanjing Medical University, Nanjing, China
| | - Dongmei Li
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, China
| | - Xiaodong Han
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, China
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9
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Płaczkowska S, Pawlik-Sobecka L, Kokot I, Piwowar A. The association between serum uric acid and features of metabolic disturbances in young adults. Arch Med Sci 2021; 17:1277-1285. [PMID: 34522256 PMCID: PMC8425241 DOI: 10.5114/aoms.2020.93653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 10/06/2018] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION The increase in the number of people affected by different metabolic disturbances, especially among young people, is alarming. It seems worthwhile to reappraise the usefulness of commonly used laboratory parameters potentially associated with metabolic and metabolically obese normal weight syndrome. Serum uric acid may be considered as an indicator and/or a predictor of metabolic disorders. We evaluated serum uric acid concentration in relation to metabolic syndrome, as well as metabolically obese normal weight features, and examined its usefulness in improving metabolic and metabolically obese normal weight syndrome diagnosis in young people. MATERIAL AND METHODS In 349 apparently healthy people, aged 18-31, features of metabolic and metabolically obese normal weight syndrome and serum uric acid concentration were examined under fasting conditions. RESULTS Prevalence of metabolic syndrome increased in uric acid quartiles, while the percentage of metabolically obese normal weight syndrome was at a similar level in all uric acid quartiles. A relationship between uric acid concentration and features of metabolic disorders in quartile and correlation analysis was revealed. Data mining techniques did not indicate the usefulness of uric acid for distinguishing people with metabolic syndrome from those with metabolically obese normal weight syndrome. CONCLUSIONS We confirmed that in young people an increase in uric acid levels is more closely related to metabolic syndrome features than insulin resistance. Serum uric acid concentration could not be recommended as an independent, strong marker of metabolic or metabolically obese normal weight syndrome occurrence in young people, but finding its elevated concentration should be an indicator for screening for other disturbances associated with metabolic syndrome.
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Affiliation(s)
- Sylwia Płaczkowska
- Diagnostics Laboratory for Teaching and Research, Faculty of Pharmacy with the Division of Laboratory Diagnostics, Wroclaw Medical University, Wroclaw, Poland
| | - Lilla Pawlik-Sobecka
- Department of Laboratory Diagnostics, Faculty of Pharmacy with the Division of Laboratory Diagnostics, Wroclaw Medical University, Wroclaw, Poland
| | - Izabela Kokot
- Department of Laboratory Diagnostics, Faculty of Pharmacy with the Division of Laboratory Diagnostics, Wroclaw Medical University, Wroclaw, Poland
| | - Agnieszka Piwowar
- Department of Toxicology, Faculty of Pharmacy with the Division of Laboratory Diagnostics, Wroclaw Medical University, Wroclaw, Poland
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Liu YJ, Shen XB, Yu N, Shang XJ, Gu YQ, Zuo LD, Xiong CL, Ye Z, Zhou YZ. Prevalence of late-onset hypogonadism among middle-aged and elderly males in China: results from a national survey. Asian J Androl 2021; 23:170-177. [PMID: 33154202 PMCID: PMC7991815 DOI: 10.4103/aja.aja_59_20] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
This study aimed to propose an operational definition of late-onset hypogonadism (LOH) that incorporates both clinical symptoms and serum testosterone measurements to evaluate the prevalence of LOH in aging males in China. A population-based sample of 6296 men aged 40 years-79 years old was enrolled from six representative provinces in China. Serum total testosterone (TT), sex hormone-binding globulin (SHBG), and luteinizing hormone (LH) were measured and free testosterone (cFT) was calculated. The Aging Males' Symptoms (AMS) scale was used to evaluate the LOH symptoms. Finally, 5078 men were included in this analysis. The TT levels did not decrease with age (P = 0.59), and had no relationship with AMS symptoms (P = 0.87 for AMS total score, P = 0.74 for ≥ 3 sexual symptoms). The cFT levels decreased significantly with age (P < 0.01) and showed a negative association with the presence of ≥ 3 sexual symptoms (P = 0.03). The overall estimated prevalence of LOH was 7.8% (395/5078) if a cFT level <210 pmol l-1 combined with the presence of ≥ 3 sexual symptoms was used as the criterion of LOH. Among them, 26.1% (103/395) and 73.9% (292/395) had primary and secondary hypogonadism, respectively. After adjustment for confounding factors, primary and secondary hypogonadism was positively related to age and comorbidities. Body mass index was an independent risk factor for secondary hypogonadism. The results suggest that the AMS total score is not an appropriate indicator for decreased testosterone, and that the cFT level is more reliable than TT for LOH diagnosis. Secondary hypogonadism is the most common form of LOH.
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Affiliation(s)
- Yi-Jun Liu
- School of Public Health, Zunyi Medical University, Zunyi 563000, China
| | - Xu-Bo Shen
- School of Public Health, Zunyi Medical University, Zunyi 563000, China
| | - Na Yu
- Scientific Research Center, The Third Affiliated Hospital of Guang Dong Medical University (Long Jiang Hospital of Shunde District Foshan City), Foshan 528318, China
| | - Xue-Jun Shang
- Department of Andrology, Eastern Theater General Hospital, Nanjing 210002, China
| | - Yi-Qun Gu
- Institute of Science and Technology, National Research Institute for Family Planning, Beijing 100081, China
| | - Lian-Dong Zuo
- Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510632, China
| | - Cheng-Liang Xiong
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zhen Ye
- Department of Urology and Andrology, Wuhan Tongji Reproductive Medicine Hospital, Wuhan 430013, China
| | - Yuan-Zhong Zhou
- School of Public Health, Zunyi Medical University, Zunyi 563000, China
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11
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Zhou SJ, Zhao MJ, Yang YH, Guan D, Li ZG, Ji YD, Zhang BL, Shang X, Xiong C, Gu YQ. The Epidemiological Characteristics of Late-Onset Hypogonadism in Chinese Middle-Aged and Elderly Men: Two Cross-Sectional Studies in the Same Community. Am J Mens Health 2020; 14:1557988320977991. [PMID: 33305661 PMCID: PMC7734522 DOI: 10.1177/1557988320977991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 11/07/2020] [Accepted: 11/11/2020] [Indexed: 11/17/2022] Open
Abstract
The purpose of this study was to investigate the prevalence and epidemiological characteristics of late-onset hypogonadism (LOH) in middle-aged and elderly Chinese men. Two cross-sectional studies were conducted at 5-year intervals in community-dwelling men living in the same area. A total of 1472 (Study 1, S1) and 944 (Study 2, S2) men aged 40-69 years old were recruited as subjects. Subjects were evaluated through combining serum reproductive hormone levels with the Androgen Deficiency in Aging Males (ADAM) questionnaire and the Aging Males' Symptoms (AMS) scale. A significant difference was found in mean testosterone deficiency (TD) prevalence between S1 and S2, using either serum total testosterone (TT; 14.02% vs. 6.36%) or serum calculated free testosterone (cFT; 43.69% vs. 16.53%) cutoff values. According to the S1 or S2 data, the mean prevalence of LOH was 37.85%/15.47% in the positive ADAM test and 15.42%/9.43% in the positive AMS test (p < .01). According to classifications of TD based on gonadal status, the prevalence of secondary TD (27.34%) was higher than the primary (16.36%) and compensated (15.42%) TD in S1 (p < .01). However, there were significant differences among the prevalence of primary (6.89%), secondary (9.64%), and compensated (27.65%) TD in S2 (p < .05). Different types of testosterone levels, TD cutoff values, and questionnaires influenced the prevalence of TD and LOH. The serum FT cutoff value was an optimal threshold for evaluating and diagnosing TD and LOH, whose prevalence increased gradually with male aging.
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Affiliation(s)
- Shan-Jie Zhou
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Peking University International Hospital, Beijing, China
| | - Ming-Jia Zhao
- Department of Reproduction and Genetics, Tangshan Maternity and Child Health Care Hospital, Tangshan, China
| | - Yi-Hong Yang
- Reproductive Medicine Centre, Department of Gynecology and Obstetrics, Key Laboratory of Birth Defects and Related Diseases of Women and Children Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Di Guan
- Department of Urology, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Zhi-Guang Li
- Department of Internal Medicine-Neurology, General Hospital of Jizhong Energy Xingtai Mining Group Co. Ltd., Xingtai, China
| | - Yu-Dang Ji
- Department of Andrology, Fucheng Technical Service Center of Family Planning, Hengshui, China
| | - Bao-Long Zhang
- Department of Andrology, Fucheng Technical Service Center of Family Planning, Hengshui, China
| | - Xue‑Jun Shang
- Department of Andrology, Nanjing General Hospital of Nanjing Command, PLA, Nanjing, China
| | - Cheng‑Liang Xiong
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yi-Qun Gu
- National Health and Family Planning Key Laboratory of Male Reproductive Health, Department of Male Clinical Research, National Research Institute for Family Planning, Beijing, China
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12
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Kharaba ZJ, Buabeid MA, Alfoteih YA. Effectiveness of testosterone therapy in hypogonadal patients and its controversial adverse impact on the cardiovascular system. Crit Rev Toxicol 2020; 50:491-512. [PMID: 32689855 DOI: 10.1080/10408444.2020.1789944] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Testosterone is the major male hormone produced by testicles which are directly associated with man's appearance and secondary sexual developments. Androgen deficiency starts when the male hormonal level falls from its normal range though, in youngsters, the deficiency occurs due to disruption of the normal functioning of pituitary, hypothalamus glands, and testes. Thus, testosterone replacement therapy was already known for the treatment of androgen deficiency with lesser risks of producing cardiovascular problems. Since from previous years, the treatment threshold in the form of testosterone replacement therapy has effectively increased to that extent that it was prescribed for those conditions which it was considered as inappropriate. However, there are some research studies and clinical trials available that proposed the higher risk of inducing cardiovascular disease with the use of testosterone replacement therapy. Thus under the light of these results, the FDA has published the report of the increased risk of cardiovascular disease with the increased use of testosterone replacement therapy. Nevertheless, there is not a single trial available or designed that could evaluate the risk of cardiovascular events with the use of testosterone replacement therapy. As a result, the use of testosterone still questioned the cardiovascular safety of this replacement therapy. Thus, this literature outlines the distribution pattern of disease by investigating the data and link between serum testosterone level and the cardiovascular disease, also the prescription data of testosterone replacement therapy patients and their tendency of inducing cardiovascular disease, meta-analysis and the trials regarding testosterone replacement therapy and its connection with the risks of causing cardiovascular disease and lastly, the possible effects of testosterone replacement therapy on the cardiovascular system. This study aims to evaluate the available evidence regarding the use of testosterone replacement therapy when choosing it as a treatment plan for their patients.
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Affiliation(s)
- Zelal Jaber Kharaba
- Department of Clinical Sciences, College of Pharmacy, Al-Ain University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Manal Ali Buabeid
- Department of Clinical Sciences, Ajman University, Ajman, United Arab Emirates
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Shukla A, Sharda B, Sharma S, Bhardwaj S, Kailash U, Kalani R, Satyanarayana L, Shrivastava A. Association Between Serum Testosterone and Serum PSA Among Men With and Without Partial Androgen Deficiency. Indian J Clin Biochem 2020; 35:127-131. [PMID: 32071506 DOI: 10.1007/s12291-018-0785-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 07/25/2018] [Indexed: 01/28/2023]
Abstract
Serum prostatic specific antigen (PSA) and serum testosterone levels share an undefined relationship with each other, with many conflicting studies showing both positive and negative correlation between them. Our aim was to assess association between serum PSA and serum testosterone in healthy men with normal testosterone levels and men with partial androgen deficiency (PADAM). A cross sectional study was conducted at a teaching hospital setting where serum testosterone and aging male symptom scale (AMS) scores along with PSA were studied in 255 men (> 50 years) with and without PADAM. Mean total testosterone and serum PSA was 9.35 ± 1.33 nmol/L, 1.96 ± 0.76 ng/mL in males with PADAM and 15.30 ± 1.95 nmol/L, 1.85 ± 0.73 ng/mL respectively in males without PADAM. No significant relationship was observed between serum PSA and serum testosterone levels among healthy males irrespective of PADAM in the study population. We suggest, there is no need to adjust PSA values for biopsy decisions according to testosterone levels.
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Affiliation(s)
- A Shukla
- Department of Biochemistry, Rajiv Gandhi Super Specialty Hospital, Dilshad Garden, New Delhi, 110093 India
| | - B Sharda
- 2Department of Urology, RG Stone Urology and Laparoscopy Hospital, F-12, East of Kailash, New Delhi, 110065 India
| | - S Sharma
- 3Department of Biochemistry, All India Institute of Medical Sciences, Jodhpur, Basni Industrial Area, Phase-2, Jodhpur, Rajasthan 342005 India
| | - S Bhardwaj
- Department of Biochemistry, Rajiv Gandhi Super Specialty Hospital, Dilshad Garden, New Delhi, 110093 India
| | - U Kailash
- 4ICMR-National Institute of Cancer Prevention and Research, Sector-39, Noida, Uttar Pradesh 201301 India
| | - R Kalani
- Department of Biochemistry, Rajiv Gandhi Super Specialty Hospital, Dilshad Garden, New Delhi, 110093 India
| | - L Satyanarayana
- 4ICMR-National Institute of Cancer Prevention and Research, Sector-39, Noida, Uttar Pradesh 201301 India
| | - A Shrivastava
- 4ICMR-National Institute of Cancer Prevention and Research, Sector-39, Noida, Uttar Pradesh 201301 India
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Abstract
This article contains a systematic review of the main developments that have occurred in the area of male hypogonadism between the publication of the Endocrine Society Guidelines of 2010 and 2018 and after 2018.
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Affiliation(s)
- Marco Marcelli
- Department of Medicine, Division of Endocrinology, Baylor College of Medicine, Houson, Texas, USA .,Section of Endocrinology, Michael E DeBakey VA Medical Center, Houston, Texas, USA
| | - Sanjay Navin Mediwala
- Department of Medicine, Division of Endocrinology, Baylor College of Medicine, Houson, Texas, USA.,Section of Endocrinology, Michael E DeBakey VA Medical Center, Houston, Texas, USA
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Zhou SJ, Zhao MJ, Yang YH, Guan D, Li ZG, Ji YD, Zhang BL, Shang XJ, Xiong CL, Gu YQ. Age-related changes in serum reproductive hormone levels and prevalence of androgen deficiency in Chinese community-dwelling middle-aged and aging men: Two cross-sectional studies in the same population. Medicine (Baltimore) 2020; 99:e18605. [PMID: 31895811 PMCID: PMC6946319 DOI: 10.1097/md.0000000000018605] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
To investigate the age-related nomograms and change trends of reproductive hormones, and prevalence of androgen deficiency (AD) in middle-aged and aging men from 2 studies.Two cross-sectional studies were conducted at 5-year intervals in Chinese community-dwelling men living in the same area. A total of 434 (Study 1, S1) and 944 (Study 2, S2) men aged 40 to 69 years were recruited as subjects and 59 (S1) and 98 (S2) men aged 20 to 39 years as controls to measure serum reproductive hormone levels.Serum total testosterone (TT) levels did not change significantly in S1, whereas TT levels increased in S2 with aging. Serum calculated free testosterone (cFT) levels gradually decreased with aging; however, only men aged 40 to 69 years showed this trend in S2. Serum luteinizing hormone (LH) and sex hormone binding globulin (SHBG) levels gradually increased, and serum testosterone secretion index (TSI) and free testosterone index (FTI) levels gradually decreased with male aging. The mean annual decrease values of serum cFT were 2.705 pmol/l in S1 and 1.060 pmol/l in S2. The cut-off values for AD in S1 and S2 were 9.13 nmol/l and 9.35 nmol/l for TT, and 169.00 pmol/l and 213.90 pmol/l for cFT. Using TT or cFT cut-off values, mean AD prevalence was 14.52% or 44.70% in S1, and 6.36% or 16.53% in S2. Based on cFT cut-off values, prevalence of AD increased gradually with male aging in a range of 25.30% to 61.63% in S1 and 1.20% to 23.03% in S2.The change patterns of serum LH, SHBG, TSI and FTI levels in middle-aged and aging males were consistent; however, there were differences in serum TT and cFT change patterns in S1 and S2 with male aging. cFT cut-off values were the optimal metric to evaluate AD, which can be present a ladder-like change in prevalence of different age groups.
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Affiliation(s)
- Shan-Jie Zhou
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Peking University International Hospital, Beijing
| | - Ming-Jia Zhao
- Department of Reproduction and Genetics, Maternity and Child Health Care Hospital of Tangshan, Tangshan
| | - Yi-Hong Yang
- Reproductive Medicine Centre, Department of Gynecology and Obstetrics, Key Laboratory of Ministry of Education on Birth Defects and Related Diseases of Women and Children, West China Second University Hospital, Sichuan University, Chengdu
| | - Di Guan
- Department of Urology, Beijing Tongren Hospital, Capital Medical University, Beijing
| | - Zhi-Guang Li
- Department of Internal Medicine-Neurology, General Hospital of Jizhong Energy Xingtai Mining Group Co. Ltd., Xingtai
| | - Yu-Dang Ji
- Department of Andrology, Fucheng Technical Service Center of Family Planning, Hengshui
| | - Bao-Long Zhang
- Department of Andrology, Fucheng Technical Service Center of Family Planning, Hengshui
| | - Xue-Jun Shang
- Department of Andrology, Nanjing General Hospital of Nanjing Military Command, PLA, Nanjing
| | - Cheng-Liang Xiong
- Reproductive Health Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan
| | - Yi-Qun Gu
- National Health and Family Planning Commission Key Laboratory of Male Reproductive Health, Department of Male Clinical Research, National Research Institute for Family Planning, Beijing, China
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Gao F, Chen J, Liu X, Wang X, Zhao H, Han D, Jing X, Liu Y, Cui Z, Li C, Ma J. Latent class analysis suggests four classes of persons with type 2 diabetes mellitus based on complications and comorbidities in Tianjin, China: a cross-sectional analysis. Endocr J 2017; 64:1007-1016. [PMID: 28781339 DOI: 10.1507/endocrj.ej17-0199] [Citation(s) in RCA: 8] [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: 11/23/2022] Open
Abstract
The aim of this study was to explore a new classification way in persons with type 2 diabetes mellitus based on complications and comorbidities using Latent Class Analysis, moreover, finding out the factors associated with different latent classes and making specific suggestions. In this study, 5,500 patients with type 2 diabetes mellitus from ten hospitals in Tianjin, China were selected, and the response rate was 96.2%. Latent Class Analysis was used to cluster patients. After compared the baseline characteristics, multinomial logistic regression was applied. Patients with type 2 diabetes mellitus were classified into four classes. In the univariate analysis, all variables were significant (p<0.05). According to multinomial logistic regression, we found longer duration of type 2 diabetes mellitus, family history of diabetes, older age, obesity and central obesity, female menopause, living in a suburb, having a higher 2hPG at diagnosis, smoking and drinking were associated with the prevalence of complications and comorbidities. In conclusion, LCA was shown to be an effective method for grouping patients with T2DM, which presented a nuanced approach to data reduction. Further research using LCA may be especially useful to investigate causal relationships between complications and the significant factors identified in our study.
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Affiliation(s)
- Fei Gao
- Department of Health Statistics, College of Public Health, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Jiageng Chen
- Department of Health Statistics, College of Public Health, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Xiaoqian Liu
- Department of Health Statistics, College of Public Health, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Xuying Wang
- Department of Health Statistics, College of Public Health, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Haozuo Zhao
- Department of Health Statistics, College of Public Health, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Duolan Han
- Department of Health Statistics, College of Public Health, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Xiyue Jing
- Department of Health Statistics, College of Public Health, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Yuanyuan Liu
- Department of Health Statistics, College of Public Health, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Zhuang Cui
- Department of Health Statistics, College of Public Health, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Changping Li
- Department of Health Statistics, College of Public Health, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Jun Ma
- Department of Health Statistics, College of Public Health, Tianjin Medical University, Tianjin 300070, P.R. China
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Liu Z, Liu J, Shi X, Wang L, Yang Y, Tao M, Fu Q. Comparing calculated free testosterone with total testosterone for screening and diagnosing late-onset hypogonadism in aged males: A cross-sectional study. J Clin Lab Anal 2016; 31. [PMID: 27714896 DOI: 10.1002/jcla.22073] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 09/06/2016] [Indexed: 11/11/2022] Open
Abstract
OBJECTIVE The aim of this study is to compare calculated free testosterone (cFT) and total testosterone (T) in predicting late-onset hypogonadism (LOH) in middle-aged and elderly males. METHODS We surveyed a random sample of 608 males between the ages of 45 and 87 years from Shanghai, China. The Aging Male Symptoms (AMS) questionnaire and the Androgen Deficiency in Aging Male (ADAM) questionnaire were completed by the subjects. Testosterone (T), sex hormone-binding globulin (SHBG), albumin, and other blood biochemical indexes were measured in 332 males. The corresponding cFT was obtained using the Vermeulen formula and the correlations between T and cFT were analyzed by SPSS statistical software. RESULTS Among the 332 males who underwent biochemical evaluation, 289 males (87.0%) was positively screened by the ADAM questionnaire and 232 males (69.9%) by the AMS questionnaire. As suggested by linear regression, cFT exhibited a negative correlation with age in both ADAM+ and AMS+ group, whereas T did not appear to have significant correlation with age. Besides, there were statistically significant differences in cFT (P<.001) in the AMS questionnaire. CONCLUSIONS Calculated free testosterone levels are more reliable than T levels for diagnosing LOH in middle-aged and elderly males.
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Affiliation(s)
- Zhangshun Liu
- Department of Reproductive Medicine Center, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Jie Liu
- Department of Reproductive Medicine Center, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Xiaohong Shi
- Department of Reproductive Medicine Center, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Lihong Wang
- Department of Reproductive Medicine Center, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yan Yang
- Department of Reproductive Medicine Center, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Minfang Tao
- Department of Reproductive Medicine Center, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Qiang Fu
- Department of Urology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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Reference Ranges and Association of Age and Lifestyle Characteristics with Testosterone, Sex Hormone Binding Globulin, and Luteinizing Hormone among 1166 Western Chinese Men. PLoS One 2016; 11:e0164116. [PMID: 27711240 PMCID: PMC5053410 DOI: 10.1371/journal.pone.0164116] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 09/20/2016] [Indexed: 11/24/2022] Open
Abstract
Decreased total testosterone (TT) is the recommended metric to identify age-related hypogonadism. However, average TT and the extent to which it varies by age, can vary substantially among different populations. Population-specific reference ranges are needed to understand normal versus abnormal TT levels. Therefore, the goal for this study was to describe androgen concentrations and their correlates among Western Chinese men. We completed a population-based, cross-sectional study including 227 young adults (YA) (20–39 years) and 939 older adults (OA) (40–89 years). We measured TT, sex-hormone binding globulin (SHBG), luteinizing hormone (LH), testosterone secreting index (TSI), and calculated free testosterone (cFT). Reference ranges for this population were determined using average YA concentrations. Multivariable regression models were used to predict hormone concentrations adjusting for age, waist-to-height ratio (WHR), marital status, education, occupation, smoking, alcohol, blood glucose, and blood pressure. Among OA, 3.8% had low TT, 15.2% had low cFT, 26.3% had low TSI, 21.6% had high SHBG, and 6.1% had high LH. Average cFT was significantly lower in OA (0.30 nmol/L; standard deviation (SD): 0.09) versus YA (0.37; SD: 0.11) but TT was not different in OA (16.82 nmol/L; SD: 4.80) versus YA (16.88; SD: 5.29). In adjusted models increasing age was significantly associated with increased SHBG or LH, and decreased cFT or TSI; however, TT was not significantly associated with age (β = 0.02 nmol/L; 95% confidence interval (CI): -0.01, 0.04). Higher WHR was associated with significantly decreased TT, SHBG, TSI, and LH. The only variable significantly related to cFT was age (β = -0.0033; 95% CI:-0.0037, -0.0028); suggesting that cFT measurements would not be confounded by other lifestyle factors. In conclusion, cFT, but not TT, varies with age in this population, suggesting cFT may be a better potential marker for age-related androgen deficiency than TT among Western Chinese men.
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Association of Alcohol Consumption with Markers of Prostate Health and Reproductive Hormone Profiles: A Multi-Center Study of 4,535 Men in China. PLoS One 2015; 10:e0142780. [PMID: 26559058 PMCID: PMC4641659 DOI: 10.1371/journal.pone.0142780] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 10/27/2015] [Indexed: 11/25/2022] Open
Abstract
Background The effect of alcohol consumption on prostate health and reproductive hormone profiles has long been investigated and currently, no consensus has been reached. Additionally, large studies focusing on this topic are relatively rare in China. Purpose To investigate the association of alcohol consumption with prostate measurements and reproductive hormone profiles in Chinese population; and to examine the relationship between hormone levels and prostate measurements. Methods This cross-sectional study included 4535 men from four representative provinces of China. Demographic details, family history of prostate disease, tobacco and alcohol consumption, as well as International Prostate Symptom Score (I-PSS) were collected through a questionnaire. Total prostate specific antingen (total PSA), free PSA, free PSA/total PSA ratio (f/tPSA), and reproductive hormones were measured in serum. Multi-variable regression models were used to test for association of alcohol consumption with markers of prostate health, used to test for association of alcohol consumption with reproductive hormones, and reproductive hormones with markers of prostate health. Results Alcohol consumption had no obvious impact on total PSA concentration and I-PSS. Current drinkers had lower level of free PSA (β = -0.11, p = 0.02) and f/tPSA (β = -0.03, p = 0.005), former drinkers also had lower level of free PSA (β = -0.19, p = 0.02) when compared with never drinkers. Lower Luteinizing hormone (LH) (β = -1.05, p = 0.01), sex hormone-binding globulin (SHBG) (β = -4.71, p = 0.01) and higher estradiol (β = 7.81, p = 0.01) was found in current drinkers than never drinkers, whereas higher LH (β = 1.04, p = 0.04) and free testosterone (FT) (β = 0.03, p = 0.02) was detected in former drinkers than never drinkers. Furthermore, LH was positively associated with f/tPSA (β = 0.002, p = 0.006), SHBG was also positively related with free PSA (β = 0.003, p = 0.003) and f/tPSA (β = 0.0004, p = 0.01). Both total testosterone (TT) and FT were inversely related with I-PSS (OR = 0.97, 95% CI, 0.95–0.98; OR = 0.23, 95% CI, 0.11–0.45, respectively). Conclusions Alcohol consumption could affect serum free PSA concentration and also f/tPSA ratio, and also acts as an endocrine disruptor on the male reproductive hormone profiles. LH and SHBG were positively related with fPSA and f/tPSA, and higher level of TT and FT may be helpful for improving participants' subjective symptoms.
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