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Zhang Z, Yan M, Li Y, Pan Y, Wang S, Xu M, Zhou H, Liu X. The indicative effects of apolipoproteins on organic erectile dysfunction: bridging Mendelian randomization and case-control study. Front Endocrinol (Lausanne) 2024; 15:1359015. [PMID: 38938512 PMCID: PMC11208309 DOI: 10.3389/fendo.2024.1359015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 04/24/2024] [Indexed: 06/29/2024] Open
Abstract
The existing research on the association between apolipoproteins (Apos) and erectile dysfunction (ED) primarily relies on observational studies and does not distinguish between organic and psychogenic causes when diagnosing ED. It is difficult to believe that Apos play a role in psychogenic ED. To address these issues, our study explored the causal relationship between lipoproteins and ED using Mendelian randomization (MR) analysis and differentiate between organic and psychogenic ED through the use of nocturnal penile tumescence and rigidity (NPTR) monitoring. Multivariate MR analysis revealed significant causal associations between high-density lipoprotein (HDL), Apo A1, and Apo B/A1 with ED (OR and 95% CI were 0.33 (0.14-0.78), 3.58 (1.52-8.43), and 0.30 (0.13-0.66)). we conducted statistical and analytical analyses on the data of 212 patients using multivariate analyses and receiver operating characteristic (ROC) curves. Patients with organic ED had significantly lower levels of HDL, Apo A1 and Apo A1/B, whereas patients with organic ED had considerably higher levels of Apo B and low-density lipoprotein (LDL). The diagnostic value of Apos in predicting the risk of organic ED was evaluated using ROC curves. The results indicated that Apo A1 and Apo A1/B demonstrated good predictive value. HDL, Apo A1, and Apo A1/B have been identified as risk factors for ED in our study. Furthermore, our research highlights the significance of Apo A1 and Apo A1/Apo B in the development of organic ED and suggests their potential use as indicators to assess the risks associated with organic ED.
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Affiliation(s)
- Zhexin Zhang
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Mo Yan
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Yuezheng Li
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Yang Pan
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Shangren Wang
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Mingming Xu
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Hang Zhou
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Xiaoqiang Liu
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
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Bao B, Guo J, Zhang L, Pan Z, Huang H, Qin Z, Chen L, Zhou X, Liu B. Effects of obesity-related anthropometric indices and body composition on erectile dysfunction mediated by coronary artery disease: A Mendelian randomization study. Andrology 2024; 12:75-86. [PMID: 37082877 DOI: 10.1111/andr.13443] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 03/10/2023] [Accepted: 04/11/2023] [Indexed: 04/22/2023]
Abstract
BACKGROUND The causal relationship between obesity-related anthropometric indicators/body composition and erectile dysfunction has not been established in previous observational studies. METHOD We screened single nucleotide polymorphisms significantly associated with exposure from genome-wide association studies as instrumental variables (p < 5.0 × 10-8 ). The summary statistics for erectile dysfunction were collected from a genome-wide association study with a sample size of 223,805. Exposure and outcome populations included are of European ancestry. We used univariate and multivariate Mendelian randomization (i) to investigate the causal relationship between genetically predicted obesity-related anthropometric indicators/body composition and erectile dysfunction and (ii) to examine the mediating role of coronary artery disease. Mendelian randomization analysis was conducted using an inverse variance weighted method. A series of sensitivity analyses validated the results of the Mendelian randomization analysis. Causal estimates are expressed as odds ratios with 95% confidence intervals. RESULTS Obesity-related anthropometric indicators/body composition were associated with an increased risk of erectile dysfunction in univariate Mendelian randomization analyses. For the 1-SD increase in body mass index, the odds ratio was 1.841 (95% confidence interval: 1.049-1.355, p = 0.006). For the 1-SD increase in waist circumference and hip circumference, the odds ratios were 1.275 (95% confidence interval: 1.101-1.478, p = 0.001) and 1.156 (95% confidence interval: 1.015-1.317, p = 0.009), respectively. The odds ratio for the 1-SD increase in whole body fat mass was 1.221 (95% confidence interval: 1.047-1.388, p = 0.002). For the 1-SD increase in leg fat percentage (left and right), the odds ratios were 1.256 (95% confidence interval: 1.006-1.567, p = 0.044) and 1.285 (95% confidence interval: 1.027-1.608, p = 0.028), respectively. For the 1-SD increase in leg fat mass (left and right), the odds ratios were 1.308 (95% confidence interval: 1.108-1.544, p = 0.001) and 1.290 (95% confidence interval: 1.091-1.524, p = 0.003), respectively. For the 1-SD increase in arm fat mass (left and right), the odds ratios were 1.269 (95% confidence interval: 1.113-1.447, p < 0.001) and 1.254, respectively. Multivariate Mendelian randomization analysis showed that after adjusting for coronary artery disease, some genetic predispositions to obesity-related anthropometric indicators and body composition were still associated with an increased risk of erectile dysfunction. Significant associations were found for waist circumference-erectile dysfunction (odds ratio: 1.218, 95% confidence interval: 1.036-1.432), leg fat percentage (left)-erectile dysfunction (odds ratio: 1.245, 95% confidence interval: 1.035-1.497), leg fat mass (left)-erectile dysfunction (odds ratio: 1.264, 95% confidence interval: 1.051-1.521), arm fat mass (right)-erectile dysfunction (odds ratio: 1.186, 95% confidence interval: 1.024-1.373), and arm fat mass (left)-erectile dysfunction (odds ratio: 1.17, 95% confidence interval: 1.018-1.360). Meanwhile, coronary artery disease mediated the effects of fat on erectile dysfunction, and the proportion of coronary artery disease-mediated cases ranged from 10% to 22%. CONCLUSION There is a potential causal relationship between obesity-related anthropometric indicators/body composition and erectile dysfunction. Higher waist circumference, leg fat percentage, and arm fat mass may increase the risk of erectile dysfunction, and coronary artery disease partly mediates this overall effect. Understanding the causal relationship between obesity and erectile dysfunction and the mediating role of coronary artery disease may provide more information for erectile dysfunction intervention and prevention strategies.
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Affiliation(s)
- Binghao Bao
- Beijing University of Chinese Medicine, China-Japan Friendship Clinical Medical College, Beijing, China
- Department of Andrology, China-Japan Friendship Hospital, Beijing, China
| | - Jianqiang Guo
- Beijing University of Chinese Medicine, China-Japan Friendship Clinical Medical College, Beijing, China
- Department of Andrology, China-Japan Friendship Hospital, Beijing, China
| | - Lei Zhang
- Beijing University of Chinese Medicine, China-Japan Friendship Clinical Medical College, Beijing, China
| | - Zhengkun Pan
- Department of Surgery, Yanqing Hospital of Beijing Chinese Medicine Hospital, Beijing, China
| | - Haonan Huang
- Beijing University of Chinese Medicine, China-Japan Friendship Clinical Medical College, Beijing, China
- Department of Andrology, China-Japan Friendship Hospital, Beijing, China
| | - Zhongjian Qin
- Beijing University of Chinese Medicine, China-Japan Friendship Clinical Medical College, Beijing, China
- Department of Andrology, China-Japan Friendship Hospital, Beijing, China
| | - Lu Chen
- Beijing University of Chinese Medicine, China-Japan Friendship Clinical Medical College, Beijing, China
- Department of Andrology, China-Japan Friendship Hospital, Beijing, China
| | - Xiaofeng Zhou
- Department of Andrology, China-Japan Friendship Hospital, Beijing, China
- Department of Urology, China-Japan Friendship Hospital, Beijing, China
| | - Baoxing Liu
- Beijing University of Chinese Medicine, China-Japan Friendship Clinical Medical College, Beijing, China
- Department of Andrology, China-Japan Friendship Hospital, Beijing, China
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Liang G, Song Y, Liu L, Zhou K, Tian J, Li J, Shi H, Zhu Q, Wang J, Zheng J, Yu X, Zhang S, Li Z, Liu X. Association of hypogonadism symptoms and serum hormones in aging males. Andrologia 2021; 53:e14013. [PMID: 33599350 DOI: 10.1111/and.14013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 01/19/2021] [Accepted: 01/31/2021] [Indexed: 12/14/2022] Open
Abstract
The association between hypogonadism symptoms and the levels of serum hormones are still in debate. To investigate the relationship between hypogonadism symptoms and serum hormones in middle-aged and elderly Chinese men, this community-based cross-sectional study was conducted based on a total of 965 ageing men. The ageing males' symptom (AMS) scale, International Index of Erectile Function-5 (IIEF-5), International Prostate Symptom Score (IPSS) questionnaires and related variables were assessed. Blood tests for total testosterone (TT), sex hormone-binding globulin (SHBG) and luteinising hormone (LH) were performed. Serum level of free testosterone (FT) and bioavailable testosterone (Bio-T) was calculated. The mean age was 56.34 ± 8.85 years. Total AMS score was significantly associated with all five serum hormones (LH: p < 0.001; SHBG: p < 0.001; TT: p =.043; FT: p = 0.007; Bio-T: p < 0.001). We identified sexual and somatic symptoms were obviously related to five serum hormones, while psychological symptoms seemed to have no association with serum hormones. After adjusting for age and BMI, multiple linear regression analysis indicated that LH had positive correlations with total AMS score, somatic and sexual symptom score (p < 0.05). In conclusion, LH and SHBG had the strongest correlation hypogonadism and might be used as early predictors for symptomatic hypogonadism in the near future.
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Affiliation(s)
- Guoqing Liang
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Yuxuan Song
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Li Liu
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Kechong Zhou
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Jia Tian
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Jianhui Li
- Department of Reproductive Epidemiology and Social Science, NHC Key Lab of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, China
| | - Huijuan Shi
- Department of Reproductive Epidemiology and Social Science, NHC Key Lab of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, China
| | - Qianxi Zhu
- Department of Reproductive Epidemiology and Social Science, NHC Key Lab of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, China
| | - Jun Wang
- Department of Urology, The First People's Hospital of Jiashan, Zhejiang, China
| | - Junbiao Zheng
- Department of Urology, The First People's Hospital of Jiashan, Zhejiang, China
| | - Xiaohua Yu
- Department of Urology, The First People's Hospital of Jiashan, Zhejiang, China
| | - Shucheng Zhang
- Department of Cell Biology, National Research Institute of Family Planning, Beijing, China
| | - Zheng Li
- Department of Andrology, Shanghai general Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Xiaoqiang Liu
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
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Kubo S, Yasui T, Matsuura Y, Tomotake M. Differences in male climacteric symptoms with aging among rotating night shift workers. Aging Male 2020; 23:995-1003. [PMID: 31397630 DOI: 10.1080/13685538.2019.1650264] [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] [Indexed: 10/26/2022] Open
Abstract
OBJECTIVE The aim of this study was to clarify the actual status of male climacteric symptoms in rotating night shift workers and how to cope with the symptoms. METHODS We planned a self-administered questionnaire survey in male rotating night shift workers. Male climacteric symptoms were evaluated by using the Aging Males' Symptoms (AMS) scale. RESULTS Of 1891 questionnaires that were sent, 1561 were collected. There were significant differences in total AMS scores among the age groups. In all age groups, there were high proportions of men with increased need for sleep and often feeling tired (64.9%) and decrease in muscular strength (60.7%). There were significant differences in AMS scores for somatic symptoms between men in their 20 s and those in their 40 s or 50 s and between men in their 30 s and those in their 50 s and in AMS scores for sexual symptoms between men in their 20 s and those in their 30 s, 40 s, 50 s or 60 s, between men in their 30 s and those in their 40 s, 50 s or 60 s and between men in their 40 s and those in their 50 s or 60 s. CONCLUSION Significant age-dependent differences are found in somatic symptoms and sexual symptoms in rotating night shift workers.
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Affiliation(s)
- Sachiko Kubo
- Graduate School of Health Sciences, Tokushima University, Tokushima, Japan
- Faculty of Nursing, Shikoku University, Tokushima, Japan
| | - Toshiyuki Yasui
- Department of Reproductive and Menopausal Medicine, Tokushima University Graduate School, Tokushima, Japan
| | - Yukie Matsuura
- Department of Reproductive and Menopausal Medicine, Tokushima University Graduate School, Tokushima, Japan
| | - Masahito Tomotake
- Department of Mental Health, Tokushima University Graduate School, Tokushima, Japan
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Mohammed MEA, Alshahrani S, Zaman G, Alelyani M, Hadadi I, Musa M. Lipid profile, random blood glucose and carotid arteries thickness in human male subjects with different ages and body mass indexes. Aging Male 2020; 23:1409-1415. [PMID: 32508180 DOI: 10.1080/13685538.2020.1773424] [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] [Indexed: 10/24/2022] Open
Abstract
OBJECTIVE This article investigated the effect of age and body mass index of male humans on the carotid arteries intima media thickness (IMT) and the blood concentration of glucose, triglycerides, total cholesterol and HDL cholesterol. METHODS Thirty seven normal male human subjects participated in this study. The participants were classified to three groups depending on their age; 20-29 (11), 30-39 (14) and 40-49 (12). Also, the study subjects were divided to three groups according to their body mass index; normal (13), overweight (13) and obese (11). The Anova test was used for the statistical analysis of the obtained results. RESULTS The body mass index significantly affected the blood glucose concentration while its effect on all the other parameters was insignificant. The age significantly affected all the studied parameters except the blood glucose, triglycerides and HDL cholesterol. The total cholesterol/HDL ratio was significantly affected by the age and insignificantly by the body mass index. CONCLUSIONS The age was more effective on the studied parameters than the body mass index. Worsening of the lipid profile was seen in the overweight participants rather than the obese ones.
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Affiliation(s)
| | - Safar Alshahrani
- Family & Community Department, College of Medicine, King Khalid University, Abha, Saudi Arabia
| | - Gaffar Zaman
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Magbool Alelyani
- Department of Radiological Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Ibrahim Hadadi
- Department of Radiological Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Mustafa Musa
- Department of Radiology, College of Applied Medical Sciences, Jeddah University, Jeddah, Saudi Arabia
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Culha MG, Canat L, Degirmentepe RB, Albayrak AT, Atalay HA, Merder E, Ariman A, Altunrende F. The correlation between atherogenic indexes and erectile dysfunction. Aging Male 2020; 23:1232-1236. [PMID: 32266853 DOI: 10.1080/13685538.2020.1749996] [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: 01/09/2023] Open
Abstract
Aside from the ordinary plasma lipid level measurements, the ratios based on individual plasma lipid levels such as atherogenic index of plasma (AIP), Castelli's risk index 1/2 (CRI-1/2), and atherogenic coefficient (AC) are the novel parameters to evaluate the patients with a high risk of CVD. In this study, we aim to evaluate the relationship between AIP, AC, and CRI-1/2 with increased risk of ED. Between April 2018 and February 2019, 253 patients, who were diagnosed as a vasculogenic ED in our clinic, were enrolled in the study. While the first group (n = 134) consisted of patients with moderate and mild ED (IIEF-EF: 17-30), the second group (n = 119) consisted of patients with severe ED. In addition to the mean values of lipid parameters; CRI-1 (total cholesterol/HDL), CRI-2 (LDL/HDL) AIP (log10(triglycerides/HDL), and AC (non-HDL/HDL) were calculated. The mean age was 44.02 ± 10.41 (24-70), and the mean BMI was 27.80 ± 4.12 (18.52 ± 41.97). However, CRI-1 and AIP values were found to be higher in the severe ED group compared to the mild ED group (CRI-1: 4.50 ± 1.47, 4.88 ± 1.30; p = .039; AIP: 0.489 ± 0.315, 0.617 ± 0.283; p = .007). Our results demonstrated that CR-1 and AIP have a positive correlation with the severity of ED. Moreover, we can suggest that patients with higher CR-1 and AIP values are likely to have more severe ED in the future.
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Affiliation(s)
- Mehmet Gokhan Culha
- Department of Urology, University of Health Sciences, Okmeydani Training and Research Hospital, Istanbul, Turkey
| | - Lutfi Canat
- Department of Urology, University of Health Sciences, Okmeydani Training and Research Hospital, Istanbul, Turkey
| | - Recep Burak Degirmentepe
- Department of Urology, University of Health Sciences, Okmeydani Training and Research Hospital, Istanbul, Turkey
| | - Ahmet Tevfik Albayrak
- Department of Urology, University of Health Sciences, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey
| | - Hasan Anil Atalay
- Department of Urology, University of Health Sciences, Okmeydani Training and Research Hospital, Istanbul, Turkey
| | - Erkan Merder
- Department of Urology, University of Health Sciences, Okmeydani Training and Research Hospital, Istanbul, Turkey
| | - Ahmet Ariman
- Department of Urology, University of Health Sciences, Okmeydani Training and Research Hospital, Istanbul, Turkey
| | - Fatih Altunrende
- Department of Urology, University of Health Sciences, Okmeydani Training and Research Hospital, Istanbul, Turkey
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Eryilmaz R, Kaplan Ş, Aslan R, Demir M, Taken K. Comparison of focused and unfocused ESWT in treatment of erectile dysfunction. Aging Male 2020; 23:206-209. [PMID: 31066334 DOI: 10.1080/13685538.2019.1610377] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Recently, extracorporeal shock wave therapy (ESWT) is more commonly used in noninvasive treatment of erectile dysfunction (ED). There is no definitive treatment protocol on the use of ESWT. In this study, we aimed to compare focused and unfocused ESWT in ED. We created two groups, each including 20 patients with similar demographics. Focused ESWT is performed in one group, while unfocused ESWT is performed for the other group. Patients are assessed with IIEF-5 and EHS. Mean score of IIEF-5 was increased by 6.3 ± 3.3 (p < .05) from 9.6 ± 2.9 to 15.0 ± 5.0 in 3-month follow-up in the unfocused group. In the focused group, IIEF-5 score increased by 5.34 in average from 10.01 ± 2.5 to 15.4 ± 3.1. In conclusion, IIEF-5 score was significantly higher in the unfocused ESWT group than the focused ESWT group.
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Affiliation(s)
- Recep Eryilmaz
- Department of Urology, School of Medicine, Yuzuncu Yil University, Van, Turkey
| | - Şeyhmus Kaplan
- Department of Sports Medicine, School of Medicine, Van Yuzuncu Yil University, Van, Turkey
| | - Rahmi Aslan
- Department of Urology, School of Medicine, Yuzuncu Yil University, Van, Turkey
| | - Murat Demir
- Department of Urology, Van Educational Research Hospital, Van, Turkey
| | - Kerem Taken
- Department of Urology, School of Medicine, Yuzuncu Yil University, Van, Turkey
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Association between Frailty and Erectile Dysfunction among Chinese Elderly Men. BIOMED RESEARCH INTERNATIONAL 2020; 2020:9247237. [PMID: 32724818 PMCID: PMC7366209 DOI: 10.1155/2020/9247237] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 06/30/2020] [Indexed: 12/29/2022]
Abstract
Objective This study is aimed at assessing association between frailty and erectile dysfunction among Chinese elderly men. Methods This community-based study was conducted with a sample of 341 Chinese elderly men (aged 60 to 83 years old) in Fuyang City (Anhui Province, China). Each of the participants completed a standard questionnaire, including demographics (age, height, weight, yearly income, educational status, comorbidity, lifestyle factors, etc.), medical and sexual history, and the Chinese version of Tilburg Frailty Indicator (TFI) and International Index of Erectile Function-5 (IIEF-5) for assessing frailty and erectile dysfunction (ED). Results The prevalence of ED and frailty in Chinese elderly men was 77.13% and 68.04%, respectively. Compared with the non-ED group, the ED group had increased age, spouse's age, BMI, prevalence of diabetes, and scores of TFI and lower yearly income, educational levels, and ratio of irregular intercourse (less than once per week) (all P < 0.05). Multivariate analysis indicated that age (OR: 0.860, 95% CI: 0.763-0.969), diabetes (OR: 0.330, 95% CI: 0.165-0.661), irregular intercourse (OR: 3.416, 95% CI: 1.874-6.229), and scores of TFI (OR: 0.906, 95% CI: 0.846-0.970) were regarded as independent risk factors for ED (all P < 0.05). And after adjusting for age, the TFI score had a negative significant association with the IIEF score (r = −0.134, P = 0.013). Conclusion This study confirmed the strong associations between ED and frailty among elderly men. Sexual health care for elderly men with ED should be assessed and taken addressed on the multidimensional assessments of frailty.
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Sessa F, Messina G, Russo R, Salerno M, Castruccio Castracani C, Distefano A, Li Volti G, Calogero AE, Cannarella R, Mongioi' LM, Condorelli RA, La Vignera S. Consequences on aging process and human wellness of generation of nitrogen and oxygen species during strenuous exercise. Aging Male 2020; 23:14-22. [PMID: 29950140 DOI: 10.1080/13685538.2018.1482866] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Impairment of antioxidant defense system and increase in metabolic rate and production of reactive oxygen species have been demonstrated in strenuous exercise. Both at rest and during contractile activity, skeletal muscle generates a very complex set of reactive nitrogen and oxygen species; the main generated are superoxide and nitric oxide. The nature of the contractile activity influences the pattern and the magnitude of this reactive oxygen and nitrogen species (ROS) generation. The intracellular pro-oxidant/antioxidant homeostasis undergoes alteration owing to strenuous exercise and the major identified sources of intracellular free radical generation during physical activity are the mitochondrial electron transport chain, polymorphoneutrophil, and xanthine oxidase. Reactive oxygen species increased tissue susceptibility to oxidative damage and pose a serious threat to the cellular antioxidant defense system. The possible dangerous consequences of the aging process and human wellness are emphasized in this review.
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Affiliation(s)
- Francesco Sessa
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Giovanni Messina
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Raffaele Russo
- Department of Orthopaedic and Traumatology, Pellegrini Hospital, Naples, Italy
| | - Monica Salerno
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | | | - Alfio Distefano
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Giovanni Li Volti
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Aldo E Calogero
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Rossella Cannarella
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Laura M Mongioi'
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Rosita A Condorelli
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Sandro La Vignera
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
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10
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Zirnask H, Pöllanen P, Suutre S, Kuuslahti M, Kotsar A, Pakarainen T, Kokk K. Expression of LHCG receptors in the human penis. Aging Male 2020; 23:8-13. [PMID: 30322327 DOI: 10.1080/13685538.2018.1514001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
The aim of this study is to investigate the expression of the luteinizing hormone/choriogonadotropin (LHCG) receptor in the human penis to see, if the luteinizing hormone (LH) effects are possible in the spongious and cavernous tissue of the penis. The number of men with erection disturbances increases significantly simultaneously with the elevated LH concentrations between 40 and 70 years. It is possible that the elevated LH concentrations may influence locally the erectile mechanisms. The precondition for this is the expression of LHCG receptors in the penis. Penile tissue was obtained from three patients undergoing total or partial penectomy due to a rectal cancer with secondary penile metastasis or squamous cell carcinoma of the penis. Immunohistochemistry was used for the detection of the LHCG receptor. Positive immunoreaction for LHCG receptors was discovered in the endothelial cells of cavernous spaces in the corpus cavernosum and corpus spongiosum penis, also in the endothelial cells of the capillary walls in all patients. Our results show that LHCG receptor is expressed in the spongious and cavernous tissue of the human penis. This finding suggests that LH can affect the spongious and cavernous tissue in human and play a significant role in the development of erectile dysfunction among the aging men.
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Affiliation(s)
- Helen Zirnask
- Department of Anatomy, Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, Estonia
- Department of Anatomy, Institute of Medicine, University of Tampere, Tampere, Finland
| | - Pasi Pöllanen
- Department of Anatomy, Institute of Medicine, University of Tampere, Tampere, Finland
- Department of Administration, CAREA, Kotka, Finland
- Institute of Biomedicine, University of Turku, Turku, Finland
- Department of Obstetrics and Gynecology, University of Helsinki, Helsinki, Finland
| | - Siim Suutre
- Department of Anatomy, Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, Estonia
| | - Marianne Kuuslahti
- Department of Anatomy, Institute of Medicine, University of Tampere, Tampere, Finland
| | - Andres Kotsar
- Department of Urology, Tampere University Hospital, Tampere, Finland
- Department of Urology, Tartu University Hospital, Tartu, Estonia
| | - Tomi Pakarainen
- Department of Urology, Tampere University Hospital, Tampere, Finland
| | - Kersti Kokk
- Department of Anatomy, Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, Estonia
- Department of Anatomy, Institute of Medicine, University of Tampere, Tampere, Finland
- Department of Anatomy, University of Helsinki, Helsinki, Finland
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11
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Gilani N, Haghshenas R, Esmaeili M. Application of multivariate longitudinal models in SIRT6, FBS, and BMI analysis of the elderly. Aging Male 2019; 22:260-265. [PMID: 29901417 DOI: 10.1080/13685538.2018.1477933] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Objective: SIRT6 is a main regulator of metabolism and lifespan and its importance has been implicated in the prevention against aging-related diseases. The objective of this study was to examine the application of multivariate longitudinal models in SIRT6, FBS, and BMI analysis in the elderly men after eight weeks concurrent training with supplementation of l-arginine (l-Arg). Methods: Thirty two elderly men with mean age of 63.09 ± 3.71 years were randomly divided into four equal-sized groups (each n = 8); Exercise + supplement (ES) group; exercise + placebo (EP) group; supplement (S) group and control (C) group. The ES and EP groups performed the eight weeks of concurrent training, three sessions per week. Group ES and group S consumed 1000 mg of l-Arg per day at 8:00 pm. Measurements of biochemical variables were done by ELISA Reader method. For analytical purposes, we used the paired sample t-test and multivariate longitudinal modeling with generalized estimating equation (GEE) methodology. All analyses have been implemented in R-3.4.1. p Values less than .05 were considered statistically significant. Results: With respect to significant association between sirt6, FBS, and BMI, this study showed that synergy effect of training and supplementation was greater than the sum of their individual effects on SIRT6 (β = 0.79, p < .001), FBS (β = -5.56, p = .022), and BMI (β = -3.89; p = .041). Also exercise alone had a significantly larger effect than supplementation alone on responses. Conclusions: It can be concluded that the joint usage of concurrent training and supplement of l-Arg for elderly men could improve the metabolism and body composition.
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Affiliation(s)
- Neda Gilani
- Department of Statistics and Epidemiology, Faculty of Health, Tabriz University of Medical Sciences , Tabriz , Iran
| | - Rouhollah Haghshenas
- Department of Sport Sciences, Faculty of Humanities, Semnan University , Semnan , Iran
| | - Mahmoud Esmaeili
- Department of Sport Sciences, Faculty of Humanities, Semnan University , Semnan , Iran
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12
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Molina-Vega M, Asenjo-Plaza M, García-Ruiz MC, Varea-Marineto E, Casal-Nievas N, Álvarez-Millán JJ, Cabezas-Sanchez P, Cardona-Díaz F, Queipo-Ortuño MI, Castellano-Castillo D, Tinahones FJ, Fernández-García JC. Cross-Sectional, Primary Care-Based Study of the Prevalence of Hypoandrogenemia in Nondiabetic Young Men with Obesity. Obesity (Silver Spring) 2019; 27:1584-1590. [PMID: 31411814 DOI: 10.1002/oby.22579] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Accepted: 06/11/2019] [Indexed: 01/18/2023]
Abstract
OBJECTIVE Obesity-associated hypoandrogenemia is increasing in parallel to the obesity epidemic. The prevalence of hypoandrogenemia in nondiabetic young men with obesity is not known. This study aimed to evaluate the prevalence of hypoandrogenemia and associated risk factors in this population. METHODS This cross-sectional study included 266 nondiabetic men < 50 years of age with obesity who were referred from primary care. Total testosterone (high-performance liquid chromatography mass spectrometry), sex hormone-binding globulin, free testosterone (FT), luteinizing hormone (LH), high-sensitivity C-reactive protein, and homeostatic model assessment of insulin resistance were determined. Body composition and erectile function were also assessed. Hypoandrogenemia was defined as FT level < 70 pg/mL. RESULTS Subnormal FT concentrations were found in 25.6% of participants. Hypoandrogenemia prevalence was different along the BMI continuum, being > 75% in individuals with BMI ≥ 50 kg/m2 . A multivariate regression analysis indicated that increasing BMI (P < 0.001), age (P = 0.049), and reduced LH levels (P = 0.003) were independent risk factors for hypoandrogenemia. CONCLUSIONS In a primary care-based cohort of nondiabetic young men with obesity, hypoandrogenemia was a very prevalent finding and was directly associated with adiposity. Obesity, age, and reduced LH levels were independent risk factors associated with hypoandrogenemia. Further prospective studies are needed to evaluate the long-term consequences of hypoandrogenemia in this population.
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Affiliation(s)
- María Molina-Vega
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Malaga, Spain
- Instituto de Investigación Biomédica de Málaga-IBIMA, Malaga, Spain
- Centro de Investigación Biomédica en Red de la Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
| | | | | | | | | | | | | | - Fernando Cardona-Díaz
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Malaga, Spain
- Instituto de Investigación Biomédica de Málaga-IBIMA, Malaga, Spain
- Centro de Investigación Biomédica en Red de la Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
| | - María Isabel Queipo-Ortuño
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Malaga, Spain
- Instituto de Investigación Biomédica de Málaga-IBIMA, Malaga, Spain
- Centro de Investigación Biomédica en Red de la Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
- Department of Medical Oncology, Virgen de la Victoria University Hospital, Malaga, Spain
| | - Daniel Castellano-Castillo
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Malaga, Spain
- Instituto de Investigación Biomédica de Málaga-IBIMA, Malaga, Spain
- Centro de Investigación Biomédica en Red de la Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
| | - Francisco J Tinahones
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Malaga, Spain
- Instituto de Investigación Biomédica de Málaga-IBIMA, Malaga, Spain
- Centro de Investigación Biomédica en Red de la Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
| | - José C Fernández-García
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Malaga, Spain
- Instituto de Investigación Biomédica de Málaga-IBIMA, Malaga, Spain
- Centro de Investigación Biomédica en Red de la Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
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13
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Taylor WSJ, Cobley J, Mahmalji W. Is aspiration and sclerotherapy treatment for hydroceles in the aging male an evidence-based treatment? Aging Male 2019; 22:163-168. [PMID: 29336195 DOI: 10.1080/13685538.2018.1425987] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Symptomatic hydroceles are commonly treated with surgical repair. They are associated with sexual dysfunction in the aging male. Patients who are not fit for surgery often undergo aspiration and sclerotherapy of the hydrocele. There is a range of sclerosing agents used in the literature. I performed a literature search to assess whether one sclerosant was better than the others. STDS is the sclerosing agent with the best cure rate after a single injection and low side effect rates. The cure rates of sodium tetradecyl sulphate (STDS) after a single aspiration and injection were 76%. After multiple treatments 94% achieved a cure. Patient satisfaction rates at mean 40 months were 95%. Complication rates were generally low and much lower than surgical repair. Aspiration and sclerotherapy have a role in treating symptomatic hydroceles. This literature review shows that this is over and above its current use in the UK, where it is used for patients unfit for general anaesthetic. If the patients are carefully selected for this procedure, they can have a good outcome and avoid the higher complication rate and longer recovery rates of surgical repair. Patients should be counselled about aspiration and sclerotherapy as part of the informed consent process.
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Affiliation(s)
- W St J Taylor
- a Urology Department , Hereford County Hospital , Hereford , UK
| | - J Cobley
- a Urology Department , Hereford County Hospital , Hereford , UK
| | - W Mahmalji
- a Urology Department , Hereford County Hospital , Hereford , UK
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14
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Zheng JB, Liang QF, Li JH, Zhang SC, Yu XH, Zhao J, Liang GQ, Shi HJ, Zhou WJ, Zhu QX. Longitudinal Trends of AMS and IIEF-5 Scores in Randomly-Selected Community Men 40 to 80 Years Old: Preliminary Results. J Sex Med 2019; 16:1567-1573. [PMID: 31447383 DOI: 10.1016/j.jsxm.2019.07.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 07/12/2019] [Accepted: 07/18/2019] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Most of conclusions on the relationship between age and reproductive health in aging men relied on cross-sectional data. AIM To better characterize the natural degradation trajectory of reproductive health of aging men based on longitudinal data. METHODS A community cohort study was performed in randomly selected men 40 to 80 years old, initiated in 2012 and followed up in 2014 and 2016. Participants were investigated by face-to-face structured interview, including demographic information and International Index of Erectile Function (IIEF-5) and Aging Males' Symptoms (AMS) scales. MAIN OUTCOME MEASURES The differences among the 3 assessments of IIEF-5 and AMS were analyzed, and progression trajectories were traced. RESULTS The high degree of variability on AMS and IIEF-5 was evident across individual subjects, as was the variability within individuals. The average IIEF-5 score of 248 subjects decreased from 16.9 to 14.1 during the 4 years, and the total AMS score increased from 22.6-27.0 (P < .001). Longitudinal data, both of individuals and of groups, showed the more rapid increase or decrease on AMS or IIEF-5 scores over 4 years in the 61-70 age group than in other age groups. CLINICAL IMPLICATION The evidence of the greatest changes on AMS and IIEF-5 scores in the 61-70 age group prompts the importance of early intervention to postpone the degradation of reproductive health. STRENGTH & LIMITATIONS Compared with cross-sectional data, longitudinal data can provide a more natural progression trajectory of reproductive health of aging male individuals. The low follow-up rate might affect the parameter estimation to some extent. CONCLUSION Cohort data over 4 years' follow-up showed more abrupt changes on AMS and IIEF-5 scores in the 61-70 age group than in other age groups. Zheng J-B, Liang Q-F, Li J-H, et al. Longitudinal Trends of AMS and IIEF-5 Scores in Randomly-Selected Community Men 40 to 80 Years Old: Preliminary Results. J Sex Med 2019;16:1567-1573.
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Affiliation(s)
- Jun-Biao Zheng
- Department of Urology, The First People's Hospital of Jiashan, Zhejiang, China
| | - Qun-Feng Liang
- Department of Reproductive Epidemiology and Social Science, NHC Key Lab of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, China
| | - Jian-Hui Li
- Department of Reproductive Epidemiology and Social Science, NHC Key Lab of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, China
| | - Shu-Cheng Zhang
- Department of Cell Biology, National Research Institute of Family Planning, Beijing, China
| | - Xiao-Hua Yu
- Department of Urology, The First People's Hospital of Jiashan, Zhejiang, China
| | - Jing Zhao
- Department of Cardiology, the key Laboratory of Cardiovascular Disease, The First Hospital of Lanzhou University, Lanzhou, China
| | - Guo-Qing Liang
- Department of Urology, Obstetrics & Gynecology Hospital of Fudan University, Shanghai, China
| | - Hui-Juan Shi
- Department of Reproductive Epidemiology and Social Science, NHC Key Lab of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, China
| | - Wei-Jin Zhou
- Department of Reproductive Epidemiology and Social Science, NHC Key Lab of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, China
| | - Qian-Xi Zhu
- Department of Reproductive Epidemiology and Social Science, NHC Key Lab of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, China.
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15
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Zhang J, Yang B, Cai Z, Li H, Han T, Wang Y. The Negative Impact of Higher Body Mass Index on Sperm Quality and Erectile Function: A Cross-Sectional Study Among Chinese Males of Infertile Couples. Am J Mens Health 2019; 13:1557988318822572. [PMID: 30602337 PMCID: PMC6440062 DOI: 10.1177/1557988318822572] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The objective of the current study was to explore the role of body mass index (BMI) in sperm quality and erectile function in Chinese males of infertile couples. A total of 28 fertility centers in different regions of China were enrolled. Patient data were collected from June 1, 2017, through October 31, 2017. Semen analyses and demographic data were collected and the five-item International Index of Erectile Function (IIEF-5) questionnaire was used to evaluate the erectile function in participants with different BMIs. In total, 3,174 Chinese men of infertile couples with an average age of 33.11 ± 6.08 years were enrolled. The occurrence of obesity, overweight, normal weight, and underweight were 5.4%, 36.6%, 56.8%, and 1.2%, respectively. In addition to hypertension and diabetes, primary infertility, a longer course of infertility, and chronic prostatitis were risk factors for obesity. Compared with men of normal weight, adjusted odds ratios (ORs) for men with obesity, overweight, and underweight for semen volume <2 ml were 2.53 (95% CI [1.61, 3.97]), 1.33 (95% CI [1.09, 1.62]), and 0.84 (95% CI [0.29, 2.43]); for sperm progressive motility (A + B) (%) <32, the ORs were 1.60 (95% CI [1.16, 2.22]), 1.30 (95% CI [1.12, 1.51]), and 1.03 (95% CI [0.54, 1.98]); and for IIEF-5 ≤ 21, the ORs were 1.52 (95% CI [1.10, 2.10]), 1.11 (95% CI [0.96, 1.30]), and 0.62 (95% CI [0.31, 1.26]), respectively. Obesity was associated with lower semen volume, lower sperm motility, and erectile dysfunction in Chinese males of infertile couples.
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Affiliation(s)
- Jianzhong Zhang
- 1 Department of Urology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Bin Yang
- 1 Department of Urology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.,2 Department of Urology, Affiliated Hospital of the Qingdao University, Qingdao, China
| | - Zhonglin Cai
- 1 Department of Urology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Hongjun Li
- 1 Department of Urology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Taoli Han
- 3 National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, China
| | - Ying Wang
- 3 National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, China
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16
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Park B, Lee YJ. Inverse association of testosterone and sex hormone binding globulin levels with leukocyte count in middle-aged and elderly men. Aging Male 2018; 21:176-181. [PMID: 29863448 DOI: 10.1080/13685538.2018.1477934] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
OBJECTIVE The inverse associations of testosterone and sex hormone-binding globulin (SHBG) levels with cardiometabolic diseases are well established and are increasingly viewed as inflammatory diseases. This study aimed to examine the associations of testosterone and SHBG levels with leukocyte count in 451 Korean men aged ≥50 years. METHODS Serum testosterone and SHBG levels were categorized into tertiles. High leukocyte count was defined as ≥7340 cells/μl, which corresponded to the 75th percentile of the current sample. The odds ratios (ORs) and 95% confidence intervals (95% CIs) for high leukocyte count were calculated across testosterone and SHBG tertiles using multiple logistic regression analysis. RESULTS The mean leukocyte counts significantly decreased with increasing testosterone and SHBG tertiles. The ORs (95% CIs) of high leukocyte count for the first tertile of testosterone and SHBG were 3.27 (1.34-7.95) and 2.38 (1.05-5.96), respectively, compared with the referent third tertile, after adjusting for age, smoking status, alcohol drinking, regular exercise, body mass index, blood pressure, fasting plasma glucose, triglyceride, and high-density lipoprotein (HDL) cholesterol level. CONCLUSION We found inversely graded associations of low testosterone and SHBG levels with leukocyte count. These findings suggest that low testosterone and SHBG levels may be interpreted as a state of low-grade inflammation.
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Affiliation(s)
- Byoungjin Park
- a Department of Family Medicine, Yonsei University College of Medicine , Seoul , Korea
- b Department of Medicine, Graduate School of Medicine , Yonsei University, Seoul , Korea
| | - Yong-Jae Lee
- a Department of Family Medicine, Yonsei University College of Medicine , Seoul , Korea
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17
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Angelova P, Kamenov Z, Tsakova A, El-Darawish Y, Okamura H. Interleukin-18 and testosterone levels in men with metabolic syndrome. Aging Male 2018; 21:130-137. [PMID: 29168426 DOI: 10.1080/13685538.2017.1401993] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVE Interleukin 18 (IL-18) is an adipokine associated with obesity. Data about the relationship of IL-18 to the metabolic syndrome (MS) are still scarce. Low testosterone (T) levels are common in men with MS, but we did not find data about the levels of IL-18 in men with low T. The aim of this study was to determine the levels of IL-18 in men with MS with or without low T. PATIENTS AND METHODS A total of 251 men were included in the study. Of them 218 had MS (IDF 2005) and they were divided according to their morning total testosterone (TT) level (cutoff 10.4 nmol/l) into two groups: MS-low T (N = 84) and MS-normal T (N = 134). The control group consisted of 33 men without MS and low T. IL-18 was determined in serum using enzyme-linked immunosorbent assay. A small group of eight men with MS and low T levels received testosterone therapy for three months and physical and laboratory parameters were monitored at the end of that period. RESULTS MS men were at mean age (±SD) = 53.77 ± 9.59 years; body mass index (BMI) = 34.0 ± 6.3 kg/m2; and TT = 12.59 ± 5.66 nmol/l. The control group was at age = 52.12 ± 5.2 years (NS); BMI = 25.6 ± 2.4 kg/m2 (p < .001); and TT = 17.8 ± 5.68 nmol/l (p < .001), respectively. The levels of IL-18 were higher in the MS group - 345 pg/ml compared to the control one - 264 pg/ml (p < .01). There was no significant difference between MS-low T (330.6 pg/ml) and MS-normal T (350.2 pg/ml) subgroups. The MS-normal T differed more significantly from the control group (p < .001). Significant correlation of testosterone with IL-18 levels was not found. IL-18 correlated with parameters of obesity, lipids, fasting blood sugar (p < .05) and the number of criteria for MS (p < .001). Three months on T treatment showed improvement in obesity parameters and only in one patient IL-18 had clear reduction while the rest showed no change. CONCLUSIONS In this study, higher IL-18 levels were found in the presence of MS compared to healthy men, but they did not differ between men having MS with or without LOH.
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Affiliation(s)
- Petya Angelova
- a Clinic of Endocrinology , Alexandrovska University Hospital, Medical University-Sofia , Sofia , Bulgaria
| | - Zdravko Kamenov
- a Clinic of Endocrinology , Alexandrovska University Hospital, Medical University-Sofia , Sofia , Bulgaria
| | - Adelina Tsakova
- b Central Clinical Laboratory , Alexandrovska University Hospital, Medical University-Sofia , Sofia , Bulgaria
| | - Yosif El-Darawish
- c Laboratory of Tumor Immunology and Immunotherapy , Hyogo College of Medicine , Hyogo , Japan
| | - Haruki Okamura
- d Laboratory of Host Defense , Hyogo College of Medicine , Hyogo , Japan
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