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Li Y, Zheng Z, Luo D, Liu C, Yang S, Chen Y, Hu Q, Lu W, Wang Y, Mei S. Reproductive hormones, organophosphate esters and semen quality: Exploring associations and mediation effects among men from an infertility clinic. ENVIRONMENTAL RESEARCH 2024; 240:117458. [PMID: 37884071 DOI: 10.1016/j.envres.2023.117458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 10/09/2023] [Accepted: 10/19/2023] [Indexed: 10/28/2023]
Abstract
Accumulating evidence indicates that organophosphate esters (OPEs) exposure may affect semen quality. As a crucial factor in male reproduction, reproductive hormones might be linked organophosphate esters (OPEs) exposure and semen quality. This study aimed to explore the mediating role of reproductive hormones on the association between OPEs exposure and semen quality. Five serum reproductive hormones, semen quality, and 16 urinary OPE metabolites were measured among 491 reproductive-aged men from a reproductive center. The associations of urinary OPE metabolites with reproductive hormones and semen quality were assessed using multivariable linear regression models, and the mediating role of reproductive hormones was evaluated by mediation analyses. We found that follicle stimulating hormone (FSH) was positively associated with diphenyl phosphate (DPHP) that in turn was negatively associated with sperm total count. In addition, inverse associations were exhibited between serum FSH and sperm concentration, sperm total count, total motility, and progressive motility (all Ptrend <0.05). Mediation analysis further showed that FSH mediated 13.7% of the inverse association of DPHP and sperm total count. Although further investigations are required, our results suggest that FSH was an intermediate mechanism in the associations between OPEs exposure and impaired semen quality.
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Affiliation(s)
- Yaping Li
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China
| | - Zhiyi Zheng
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China
| | - Dan Luo
- Department of Preventive Medicine, School of Public Health, Guangzhou Medical University, Guangzhou, 511436, China
| | - Chong Liu
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China; Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Sijie Yang
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China
| | - Yingjun Chen
- Southern Medical University Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - Qian Hu
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China
| | - Wenqing Lu
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China; Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yixin Wang
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, 227 South Chongqing Rd, Shanghai 200025, China; Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, USA.
| | - Surong Mei
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China.
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Patnaik N, Mishra KG, Pradhan NR. Evaluation of Serum Testosterone Levels Following Three Months of SA3X (Spilanthes acmella) Supplementation. Cureus 2022; 14:e26236. [PMID: 35898380 PMCID: PMC9308386 DOI: 10.7759/cureus.26236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/23/2022] [Indexed: 11/30/2022] Open
Abstract
Introduction: Low testosterone is usually associated with erectile dysfunction (ED). SA3X (Spilanthes acmella) has proven to be effective in alleviating symptoms of ED, which could be due to an alteration in serum testosterone levels. This study was carried out to evaluate the change in testosterone levels in participants with ED supplemented with SA3X for three months. Materials and Methods: A group of 326 sexually active men aged 25-60 years was investigated from November 2021 to May 2022 in Hyderabad. The participants were subjected to supplementation with SA3X capsules for three months, and a follow-up was done at the end of six months with serum testosterone assessment in each visit. The change in testosterone level was assessed using a mixed model repeated measures analysis. Results: A significant increase was observed in the mean serum testosterone levels by the end of the second month (323.91 ± 13.76 ng/dL vs. 309.84 ± 14.11 ng/dL; p=0.03) and third month (332.27 ± 12.85 ng/dL vs. 309.84 ± 14.11 ng/dL; p<0.01) of SA3X therapy. The adjusted mean change in testosterone levels was found to be 22.43 ng/dL at the end of the three-month therapy. It was also observed that the change in testosterone levels was significantly lower in participants having diabetes mellitus, hypercholesterolemia, and a history of substance abuse. However, participants on phosphodiesterase-5 inhibitors had an increased change in testosterone levels. Conclusion: Supplementation with SA3X capsules for three months increases the serum testosterone levels. However, causality cannot be ascertained owing to the longitudinal nature of the study, and further controlled trials are required for the same.
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Ye Y, Liang QF, Li JH, Zheng JB, Yu XH, Zhang SC, Zhou WJ, Shi HJ, Liang GQ, Zhu QX. Body Mass Index Changes in Relation to Male Reproductive Hormones: Longitudinal Results From a Community-Based Cohort Study. Am J Mens Health 2021; 15:15579883211049044. [PMID: 34581214 PMCID: PMC8481735 DOI: 10.1177/15579883211049044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The objective of the current study was to explore the relationship between longitudinal change in body mass index (BMI) and reproductive hormones in middle-aged and elderly Chinese men. A cohort study was conducted in a rural area of China. Local male residents aged 40-80 years were recruited at baseline in 2012 and were followed up in 2016. Information about weight, height, waist circumference, sex hormones, smoking status, and medical history were obtained. The change in BMI reported no significant relationship with the change in total testosterone (TT), calculated free testosterone (cFT), and bioavailable testosterone (BioT) in Pearson correlation analyses. When the change in BMI was divided into three groups-"great loss," "normal fluctuation," and "great gain"-TT, cFT and BioT had the highest increase (or the lowest decrease) in men with "normal fluctuation" in BMI compared with the other two groups. The advantage of maintaining a stable BMI was more evident for those who were overweight, non-smoking, and disease-free. There was a tendency of a continuous increase in cFT and BioT with BMI increase in smoking and diseased populations. Maintaining a stable BMI is associated with maintaining normal levels of reproductive hormones, especially in overweight, non-smoking, and healthy men aged over 40 years.
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Affiliation(s)
- Yun Ye
- Department of Reproductive Epidemiology and Social Science, NHC Key Lab of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), Fudan University, Shanghai, China
| | - Qun-Feng Liang
- Department of Reproductive Epidemiology and Social Science, NHC Key Lab of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), Fudan University, Shanghai, China.,Risk Adapted Prevention (RAD) Group, Division of Preventive Oncology, National Center for Tumor Diseases (NCT), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Jian-Hui Li
- Department of Reproductive Epidemiology and Social Science, NHC Key Lab of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), Fudan University, Shanghai, China
| | - Jun-Biao Zheng
- Department of Urology, The First People's Hospital of Jiashan, Zhejiang, China
| | - Xiao-Hua Yu
- Department of Urology, The First People's Hospital of Jiashan, Zhejiang, China
| | - Shu-Cheng Zhang
- Department of Cell Biology, National Research Institute of Family Planning, Beijing, China
| | - Wei-Jin Zhou
- Department of Reproductive Epidemiology and Social Science, NHC Key Lab of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), Fudan University, Shanghai, China
| | - Hui-Juan Shi
- Department of Reproductive Epidemiology and Social Science, NHC Key Lab of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), Fudan University, Shanghai, China
| | - Guo-Qing Liang
- Department of Urology, Obstetrics and Gynecology hospital, Fudan University, Shanghai, China
| | - Qian-Xi Zhu
- Department of Reproductive Epidemiology and Social Science, NHC Key Lab of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), Fudan University, Shanghai, China
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Platz EA, Barber JR, Chadid S, Lu J, Dobs AS, Kanarek NF, Nelson WG, Bradwin G, McGlynn KA, Rohrmann S. Nationally Representative Estimates of Serum Testosterone Concentration in Never-Smoking, Lean Men Without Aging-Associated Comorbidities. J Endocr Soc 2019; 3:1759-1770. [PMID: 31528824 PMCID: PMC6735742 DOI: 10.1210/js.2019-00151] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Accepted: 06/26/2019] [Indexed: 12/27/2022] Open
Abstract
CONTEXT Testosterone deficiency prevalence increases with age, comorbidities, and obesity. OBJECTIVE To inform clinical guidelines for testosterone deficiency management and development of targets for nonpharmacologic intervention trials for these men, we determined serum testosterone in never-smoking, lean men without select comorbidities in nationally representative surveys. DESIGN SETTING PARTICIPANTS We used cross-sectional data for never-smoking, lean men ≥20 years without diabetes, myocardial infarction, congestive heart failure, stroke, or cancer, without use of hormone-influencing medications, and participated in morning sessions of National Health and Nutrition Examination Survey (NHANES) III (phase I 1988-1991) or continuous NHANES (1999-2004). By age, we determined median total testosterone (ng/mL) measured previously by a Food and Drug Administration-approved immunoassay and median estimated free testosterone concentration. RESULTS In NHANES III, in never-smoking, lean men without comorbidities, median (25th, 75th percentile) testosterone was 4% to 9% higher than all men-20 to 39 years: 6.24 (5.16, 7.51), 40 to 59: 5.37 (3.83, 6.49), and ≥60: 4.61 (4.01, 5.18). In continuous NHANES, in never-smoking, lean men without comorbidities, levels were 13% to 24% higher than all men-20 to 39 years: 6.26 (5.32, 7.27), 40 to 59: 5.86 (4.91, 6.55), and ≥60: 4.22 (3.74, 5.73). In never-smoking, lean men without comorbidities, median estimated free testosterone was similar to (NHANES III) or slightly higher than (continuous NHANES) in all men. CONCLUSIONS These nationally representative data document testosterone levels (immunoassay) in never-smoking, lean men without select comorbidities 30 and 15 to 20 years ago. This information can be incorporated into guidelines for testosterone deficiency management and used to develop targets for nonpharmacologic intervention trials for testosterone deficiency.
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Affiliation(s)
- Elizabeth A Platz
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
- Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, Maryland
- Department of Urology and the James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - John R Barber
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Susan Chadid
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Jiayun Lu
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Adrian S Dobs
- Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, Maryland
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Norma F Kanarek
- Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, Maryland
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - William G Nelson
- Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, Maryland
- Department of Urology and the James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Gary Bradwin
- Department of Laboratory Medicine, Harvard Medical School and Children's Hospital, Boston, Massachusetts
| | - Katherine A McGlynn
- Division of Cancer Epidemiology & Genetics, National Cancer Institute, Bethesda, Maryland
| | - Sabine Rohrmann
- Division of Chronic Disease Epidemiology; Epidemiology, Biostatistics and Prevention Institute (EBPI), University of Zurich, Zurich, Switzerland
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