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Lopez DS, Taha S, Gutierrez S, Villasante-Tezanos A, Khalife WI, Alzweri L, Markides K, Baillargeon J, Tsilidis KK. Association of total and free testosterone with cardiovascular disease in a nationally representative sample of white, black, and Mexican American men. Int J Impot Res 2024; 36:385-393. [PMID: 36581758 PMCID: PMC10718403 DOI: 10.1038/s41443-022-00660-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 12/16/2022] [Accepted: 12/20/2022] [Indexed: 12/30/2022]
Abstract
Associations of total testosterone (T) and calculated free T with cardiovascular disease (CVD) remain poorly understood. Particularly how these associations vary according to race and ethnicity in a nationally representative sample of men. Data included 7058 men (≥20 years) from NHANES. CVD was defined as any reported diagnosis of heart failure (HF), coronary artery disease (CAD), myocardial infarction (MI), and stroke. Total T (ng/mL) was obtained among males who participated in the morning examination. Weighted multivariable-adjusted logistic regression models were conducted. We found associations of low T (OR = 1.57, 95% CI = 1.17-2.11), low calculated free T (OR = 1.53, 95% CI = 1.10-2.17), total T (Q1 vs Q5), and calculated free T (Q1 vs Q5) with CVD after adjusting for estradiol and SHBG. In disease specific analysis, low T increased prevalence of MI (OR = 1.72, 95% CI = 1.08-2.75) and HF (OR = 1.74, 95% CI = 1.08-2.82), but a continuous increment of total T reduced the prevalence of CAD. Similar inverse associations were identified among White and Mexican Americans, but not Blacks (OR = 0.93, 95% CI = 0.49-1.76). Low levels of T and calculated free T were associated with an increased prevalence of overall CVD and among White and Mexican Americans. Associations remained in the same direction with specific CVD outcomes in the overall population.
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Affiliation(s)
- David S Lopez
- School of Public and Population Health, University of Texas Medical Branch, Galveston, TX, USA.
| | - Shaden Taha
- School of Public and Population Health, University of Texas Medical Branch, Galveston, TX, USA
| | - Sirena Gutierrez
- School of Public and Population Health, University of Texas Medical Branch, Galveston, TX, USA
- Department of Epidemiology and Biostatistics, University of California, San Francisco, CA, USA
| | | | - Wissam I Khalife
- Division of Cardiology, Internal Medicine- University of Texas Medical Branch, Galveston, TX, USA
| | - Laith Alzweri
- Division of Urology, Department of Surgery, University of Texas Medical Branch, Galveston, TX, USA
| | - Kyriakos Markides
- School of Public and Population Health, University of Texas Medical Branch, Galveston, TX, USA
| | - Jacques Baillargeon
- School of Public and Population Health, University of Texas Medical Branch, Galveston, TX, USA
| | - Konstantinos K Tsilidis
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK
- Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina, Greece
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Gu X, Zhu F, Gao P, Shen Y, Lu L. Association between visceral adipose tissue and total testosterone among the United States male adults: a cross-sectional study. Int J Impot Res 2024:10.1038/s41443-024-00856-z. [PMID: 38653801 DOI: 10.1038/s41443-024-00856-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 02/11/2024] [Accepted: 02/14/2024] [Indexed: 04/25/2024]
Abstract
Visceral adipose tissue (VAT) is regarded as an important risk factor for obesity-related diseases. The results of the association between VAT and total testosterone (TT) are controversial and whether this association is nonlinear is still unknown. 3971 male participants who were aged 20-59 years from the National Health and Nutrition Examination Surveys 2011-2016 were included. VAT area was measured by dual-energy x-ray absorptiometry. TT in serum was assessed utilizing the isotope dilution liquid chromatography-tandem mass spectrometry technique. Linear regression models assessed the associations between VAT area and TT. A restricted cubic spline model was employed to investigate nonlinear relationships. A two-piecewise linear regression model was applied to determine the threshold effect. Subgroup analyses were conducted. The weighted methods were utilized in all analyses. VAT area was inversely associated with TT in the crude and adjusted models. In the fully adjusted model, VAT area was associated with TT (β = -0.59, 95% confidence interval [CI] = -0.74, -0.43) and compared to the first tertile of VAT area, the second and the third tertile had a lower TT level, the β and 95% CI = -65.49 (-83.72, -47.25) and -97.57 (-121.86, -73.27) respectively. We found these inverse associations were nonlinear. The cutoff point of the VAT area was 126 cm2. When the VAT area was <126 cm2, VAT area was significantly associated with a lower TT level (β = -1.55, 95% CI = -1.93 to -1.17, p < 0.0001). However, when the VAT area was ≥126 cm2, this association was less apparent (β = -0.26, 95% CI = -0.52 to 0.01, p = 0.06). No significant interactions among different ages (<50 or ≥50 years), marital, and physical activity status were found. These findings underscore the potential for VAT area as a modifiable indicator for improving testosterone deficiency.
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Affiliation(s)
- Xi Gu
- Department of Endocrinology, RuiJin Hospital Lu Wan Branch, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Fanfan Zhu
- Department of Endocrinology, RuiJin Hospital Lu Wan Branch, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Ping Gao
- Department of Endocrinology, RuiJin Hospital Lu Wan Branch, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Ying Shen
- Department of Endocrinology, RuiJin Hospital Lu Wan Branch, Shanghai Jiaotong University School of Medicine, Shanghai, China.
| | - Leiqun Lu
- Department of Endocrinology, RuiJin Hospital Lu Wan Branch, Shanghai Jiaotong University School of Medicine, Shanghai, China.
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David SV, Gibson D, Villasante-Tezanos A, Alzweri L, Hernández-Pérez JG, Torres-Sánchez LE, Baillargeon J, Lopez DS. Association of serum testosterone with chronic obstructive pulmonary disease (COPD) in a nationally representative sample of White, Black, and Hispanic men. Hormones (Athens) 2024; 23:153-162. [PMID: 38064143 PMCID: PMC10922908 DOI: 10.1007/s42000-023-00506-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 11/07/2023] [Indexed: 02/08/2024]
Abstract
BACKGROUND The association between total testosterone (T) and chronic obstructive pulmonary disease (COPD), remains poorly understood. We aim to investigate this association and how it varies by smoking status, body fatness, and race/ethnicity in a nationally representative sample of American men. METHODS Data included a full sample (NHANES 1988-1991, 1999-2004, 2011-2012) and subset sample (excluding 2011-2012, no estradiol and SHBG levels available) of 2748 and 906 men (≥20 years), respectively. COPD was measured by self-report or spirometry test. Total T (ng/mL) was measured among men who participated in a morning examination session. Weighted multivariable-adjusted logistic regression models were conducted. RESULTS Low T was positively associated with self-reported COPD in the full sample (OR = 2.10, 95% CI = 1.18-3.74, Ptrend = 0.010), and when stratified by current smokers and body fatness. When examined across race and ethnicity strata, this association persisted among White men (OR = 2.50, 95% CI = 1.30-4.79, Ptrend = 0.002) but not among Hispanic or Black men. In the subset sample, low T was positively associated with self-reported COPD (OR = 1.42, 95% CI, 0.57,3.55, Ptrend = 0.04), including among smokers and White men, but not body fatness. No significant associations were observed with COPD defined with spirometry plus self-report. CONCLUSION Low levels of T were associated with an increased prevalence of self-reported COPD in the full and subset samples. Similar associations were observed after stratifying by smoking status, body fatness, and race/ethnicity in the full sample and subset sample. Prospective studies are warranted to confirm these significant associations among understudied and underserved populations.
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Affiliation(s)
- Samuel V David
- School of Public and Population Health, University of Texas Medical Branch, 301 University Blvd, Galveston, TX, 77555-1153, USA.
| | - Derrick Gibson
- School of Public and Population Health, University of Texas Medical Branch, 301 University Blvd, Galveston, TX, 77555-1153, USA
| | - Alejandro Villasante-Tezanos
- School of Public and Population Health, University of Texas Medical Branch, 301 University Blvd, Galveston, TX, 77555-1153, USA
| | - Laith Alzweri
- Division of Urology, Department of Surgery, University of Texas Medical Branch, Galveston, TX, USA
| | | | | | - Jacques Baillargeon
- School of Public and Population Health, University of Texas Medical Branch, 301 University Blvd, Galveston, TX, 77555-1153, USA
| | - David S Lopez
- School of Public and Population Health, University of Texas Medical Branch, 301 University Blvd, Galveston, TX, 77555-1153, USA.
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Karasu YÖ, Orbak R, Kaşalı K, Berker E, Kantarci A. Association between androgenetic alopecia and periodontitis. J Periodontal Res 2023; 58:1105-1111. [PMID: 37571914 DOI: 10.1111/jre.13175] [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: 04/21/2023] [Revised: 08/01/2023] [Accepted: 08/03/2023] [Indexed: 08/13/2023]
Abstract
AIM Androgenic alopecia (AGA) is men's most common form of hair loss. It is affected by changes in the expression and activity of 5αR and the metabolism of testosterone and DHT. There is an association between AGA and systemic inflammatory diseases. We hypothesized that there is an association between AGA and periodontal disease, as inflamed gingiva and periodontal fibroblasts have been shown to express more 5αR. Thus, this study aimed to evaluate the relationship between periodontal disease and AGA and the potential effect of aging on this association. MATERIALS AND METHODS Out of a cohort of 1088 individuals, 385 white males aged 25-65 with similar socioeconomic levels and without systemic disease were included. Periodontitis was defined using NHANES data. AGA was evaluated using the Norwood-Hamilton scale. The relationship between AGA, periodontal disease severity, and age was assessed. RESULTS There was a correlation between age and baldness (r = .421, p < .001). There was a significant correlation between AGA and periodontal disease in younger patients aged 25-34 and 35-44. (p < .042 and p < .036, respectively). There was no significant correlation between AGA and periodontal disease in the 45-54 and 55-65 age groups (p > .05). CONCLUSION There may be a relationship between periodontal disease and AGA in the 25-44 age range, suggesting that this association starts at an early age in adulthood.
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Affiliation(s)
- Yerda Özkan Karasu
- The Forsyth Institute, Cambridge, Massachusetts, USA
- Department of Periodontology, Faculty of Dentistry, Ataturk University, Erzurum, Turkey
| | - Recep Orbak
- Department of Periodontology, Faculty of Dentistry, Ataturk University, Erzurum, Turkey
| | - Kamber Kaşalı
- Department of Biostatistics, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Ezel Berker
- Department of Periodontology, Faculty of Dentistry, Hacettepe University, Ankara, Turkey
| | - Alpdogan Kantarci
- The Forsyth Institute, Cambridge, Massachusetts, USA
- School of Dental Medicine, Harvard University, Boston, Massachusetts, USA
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Abasilim C, Persky V, Sargis RM, Argos M, Daviglus ML, Freels S, Tsintsifas K, Day T, Cai J, Isasi CR, Peters BA, Talavera GA, Thyagarajan B, Turyk ME. Association of Acculturation and Hispanic/Latino Background with Endogenous Sex and Thyroid-Related Hormones Among Middle-Aged and Older Hispanic/Latino Adults: the HCHS/SOL Study. J Racial Ethn Health Disparities 2023:10.1007/s40615-023-01762-8. [PMID: 37620727 DOI: 10.1007/s40615-023-01762-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 08/11/2023] [Accepted: 08/14/2023] [Indexed: 08/26/2023]
Abstract
BACKGROUND Hormones are linked to cardiometabolic diseases and may be impacted by acculturation though multiple mechanisms. We evaluated associations of Hispanic/Latino background and acculturation with levels of sex- and thyroid-related hormones and the potential mediating effect of adiposity, lifestyle factors, and sleep apnea syndrome on these associations. METHODS We studied 1789 adults, aged 45-74, from a sub-cohort of the Hispanic Community Health Survey/Study of Latinos. Peri/pre-menopausal women and individuals on medications related to hormones were excluded. Our study assessed eleven sex- and thyroid-related hormones, Hispanic/Latino background, and five acculturation measures. Associations were assessed using multivariable linear and logistic regression adjusted for survey design and confounding variables. We explored potential mediation using a path analysis. RESULTS In postmenopausal women, acculturation score-MESA was associated with decreased thyroid-stimulating hormone (β = - 0.13;95%CI = - 0.22, - 0.03) while age at immigration greater than the median (vs US-born) was associated with decreased (β = - 14.6; 95%CI = - 28.2, - 0.99) triiodothyronine (T3). In men, language acculturation and acculturation score-MESA were associated with increased estradiol and sex hormone-binding globulin (SHBG) while age at immigration greater and lesser than the median (vs US-born) was associated with decreased SHBG. Hispanic/Latino background (Mexicans as reference) were selectively associated with sex- and thyroid-related hormone levels in both sexes. Current smoking and sleep apnea syndrome partially mediated the association of Cuban and Puerto Rican heritage (vs Mexican) with T3 levels in men and postmenopausal women, respectively. CONCLUSION Selected acculturation measures were associated with thyroid-related hormones in postmenopausal women and sex-related hormones in men. Understanding the mechanisms involved in the relationship of acculturation and Hispanic/Latino background with hormones warrants additional investigation.
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Affiliation(s)
- Chibuzor Abasilim
- Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois Chicago, Chicago, IL, USA.
- Division of Environmental and Occupational Health Sciences, School of Public Health, University of Illinois Chicago, Chicago, IL, USA.
| | - Victoria Persky
- Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois Chicago, Chicago, IL, USA
| | - Robert M Sargis
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Illinois Chicago and Medical Service, Jesse Brown VA Medical Center, Chicago, IL, USA
| | - Maria Argos
- Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois Chicago, Chicago, IL, USA
| | - Martha L Daviglus
- Institute for Minority Health Research, University of Illinois Chicago, Chicago, IL, USA
| | - Sally Freels
- Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois Chicago, Chicago, IL, USA
| | - Konstantina Tsintsifas
- Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois Chicago, Chicago, IL, USA
| | - Tessa Day
- Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois Chicago, Chicago, IL, USA
| | - Jianwen Cai
- Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Carmen R Isasi
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Brandilyn A Peters
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Gregory A Talavera
- Department of Psychology, San Diego State University, San Diego, CA, USA
| | - Bharat Thyagarajan
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, USA
| | - Mary E Turyk
- Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois Chicago, Chicago, IL, USA
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6
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Abstract
Objective: The literature on testosterone (T) in men reports diverse correlates of T, some with minimal empirical support and most with little indication of how they change with advancing age. We test eight putative correlations across age.Method: Correlations were tested on a large sample of British men.Results: Seven of eight correlations replicated. Most change across men's life courses. The diurnal cycle of T is considerably weaker among older than younger men. Single men have higher T than married men of the same age; however, this difference lessens as men get older. Elevated T among smokers is less pronounced as men age. The inverse relationship between obesity and T is sustained across the adult age range. The lessening of T with age is well established, however there is disagreement about the course of decline. We find T having a steep decline around age 30, with possibly a rebound around age 50, after which levels remain roughly constant. Correlations involving health become stronger among older men. After age 30 or 40, the inverse relationships between T and HbA1c, diabetes, and metabolic syndrome all become increasingly significant, though not necessarily strong in magnitude.Conclusion: Most putative correlates of T are replicated. There is a basis here for the generalization that among older men, those healthy have higher T than those who are not, but not a lot higher.
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Affiliation(s)
- Ricky Kanabar
- Department of Social and Policy Sciences, University of Bath, Bath, UK
| | - Allan Mazur
- Maxwell School, Syracuse University, Syracuse, NY, USA
| | - Alexander Plum
- NZWRI, Auckland University of Technology, Auckland, New Zealand
| | - Julian Schmied
- Max Planck Institute for Demographic Research, Rostock, Germany
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7
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Rajandram R, Koong JK, Quek KF, Lee EG, Razack AHA, Kuppusamy S. Ethnic differences in serum testosterone concentration among Malay, Chinese and Indian men: A cross-sectional study. Clin Endocrinol (Oxf) 2022; 97:303-309. [PMID: 35107834 DOI: 10.1111/cen.14682] [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: 05/23/2021] [Revised: 01/21/2022] [Accepted: 01/25/2022] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To investigate non-urological patients with multiple comorbidities for factors contributing towards differences in testosterone concentration in multiethnic Malaysian men. DESIGN An observational study. PATIENTS Sexually active men, ≥40 years, with no known urological problems, were recruited at the phlebotomy clinic at our centre. MEASUREMENTS A brief history along with latest fasting lipid profile and plasma glucose levels were obtained. An Aging Male Symptoms questionnaire was administered; waist circumference (WC) and serum testosterone concentration were measured. STATSTICAL ANALYSIS Analysis of testosterone concentration between Malay, Indian and Chinese men was performed. Statistical tests such as analysis of variance, χ2 test, univariate and multivariable regression were performed. Any p < .05 was noted as statistically significant. RESULTS Among the 604 participants analysed, mean testosterone concentration was significantly lower in Malays (15.1 ± 5.9 nmol/L) compared to the Chinese (17.0 ± 5.9 nmol/L) and Indian (16.1 ± 6.5 nmol/L) participants. The mean WC was also found to be higher among the Malays (96.1 ± 10.9 cm) compared to Chinese (92.6 ± 9.6 cm) and Indians (95.6 ± 9.9 cm). Testosterone concentration tended to be lower with higher age, but this was not statistically significant (p > .05). In the multivariable analysis only Malay ethnicity, WC ≥ 90 cm and low high-density lipoprotein (HDL) were associated with lower testosterone concentration. CONCLUSION In this study, Malaysian men of Malay origin had lower testosterone concentration compared with Indian and Chinese men. WC and low HDL were also associated with lower testosterone concentrations.
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Affiliation(s)
- Retnagowri Rajandram
- Department of Surgery, Faculty of Medicine, University of Malaya, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Jun K Koong
- Department of Surgery, Faculty of Medicine, University of Malaya, Universiti Malaya, Kuala Lumpur, Malaysia
- Division of Urology, Universiti Malaya Medical Centre, Kuala Lumpur, Malaysia
| | - Kia F Quek
- Jeffrey Cheah School of Medicine & Health Sciences, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia
| | - Eng G Lee
- Jeffrey Cheah School of Medicine & Health Sciences, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia
| | - Azad H A Razack
- Department of Surgery, Faculty of Medicine, University of Malaya, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Shanggar Kuppusamy
- Department of Surgery, Faculty of Medicine, University of Malaya, Universiti Malaya, Kuala Lumpur, Malaysia
- Division of Urology, Universiti Malaya Medical Centre, Kuala Lumpur, Malaysia
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8
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Hu X, Li X, Deng P, Zhang Y, Liu R, Cai D, Xu Q, Jiang X, Sun J, Bai W. The consequence and mechanism of dietary flavonoids on androgen profiles and disorders amelioration. Crit Rev Food Sci Nutr 2022; 63:11327-11350. [PMID: 35796699 DOI: 10.1080/10408398.2022.2090893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Androgen is a kind of steroid hormone that plays a vital role in reproductive system and homeostasis of the body. Disrupted androgen balance serves as the causal contributor to a series of physiological disorders and even diseases. Flavonoids, as an extremely frequent family of natural polyphenols, exist widely in plants and foods and have received great attention when considering their inevitable consumption and estrogen-like effects. Mounting evidence illustrates that flavonoids have a propensity to interfere with androgen synthesis and metabolism, and also have a designated improvement effect on androgen disorders. Therefore, flavonoids were divided into six subclasses based on the structural feature in this paper, and the literature about their effects on androgens published in the past ten years was summarized. It could be concluded that flavonoids have the potential to regulate androgen levels and biological effects, mainly by interfering with the hypothalamic-pituitary-gonadal axis, androgen synthesis and metabolism, androgen binding with its receptors and membrane receptors, and antioxidant effects. The faced challenges about androgen regulation by flavonoids masterly include target mechanism exploration, individual heterogeneity, food matrixes interaction, and lack of clinical study. This review also provides a scientific basis for nutritional intervention using flavonoids to improve androgen disorder symptoms.
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Affiliation(s)
- Xiang Hu
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Jinan University, Guangzhou, PR China
| | - Xusheng Li
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Jinan University, Guangzhou, PR China
| | - Pan Deng
- College of Pharmaceutical Sciences, Soochow University, Suzhou, PR China
| | - Yulin Zhang
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Jinan University, Guangzhou, PR China
| | - Ruijing Liu
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Jinan University, Guangzhou, PR China
- Key Laboratory for Bio-Based Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou, PR China
| | - Dongbao Cai
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Jinan University, Guangzhou, PR China
| | - Qingjie Xu
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Jinan University, Guangzhou, PR China
| | - Xinwei Jiang
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Jinan University, Guangzhou, PR China
| | - Jianxia Sun
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, PR China
| | - Weibin Bai
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Jinan University, Guangzhou, PR China
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Nepomuceno MV, Stenstrom E. Consumption on steroids: The effect of testosterone on preferences for conspicuous consumption and the moderating role of intrasexual competition. JOURNAL OF BEHAVIORAL DECISION MAKING 2021. [DOI: 10.1002/bdm.2222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Eric Stenstrom
- Marketing Department, Farmer School of Business Miami University Oxford OH USA
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Abstract
Several correlations have been reported between men's testosterone (T) and other characteristics. Stalwart findings are a decline in T during the day, decline with obesity, and decline with advancing age. Here seven previously reported correlations are tested among older American men in the National Social Life, Health and Aging Project (NSHAP), their salivary T measured by enzyme immunoassays (EIA). Few significant correlations are found, with most tests producing weak or null results. These findings, overall, suggest that T does not "work" much among older men. However, a threat to this conclusion is raised by Welker et al. namely that EIA of salivary T may contain large errors, invalidating the tests. To check this possibility, these correlations from the literature were tested among older British men whose salivary T was measured by liquid chromatography-tandem mass spectroscopy (LC-MS/MS), a technique noted for its specificity. Not all could be tested, but the relationships of T with age, obesity, and health are significant among British men, indicating that T remains active in older men, and throwing doubt on the adequacy of EIA for measuring salivary T.
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Affiliation(s)
- Allan Mazur
- Maxwell School, Syracuse University, Syracuse, NY, USA
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11
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Kramer BL. The molecularization of race in testosterone research. BIOSOCIETIES 2020. [DOI: 10.1057/s41292-020-00200-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Hughes A, Kumari M. Testosterone, risk, and socioeconomic position in British men: Exploring causal directionality. Soc Sci Med 2019; 220:129-140. [DOI: 10.1016/j.socscimed.2018.11.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 10/31/2018] [Accepted: 11/02/2018] [Indexed: 12/16/2022]
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13
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Childhood ecology influences salivary testosterone, pubertal age and stature of Bangladeshi UK migrant men. Nat Ecol Evol 2018; 2:1146-1154. [DOI: 10.1038/s41559-018-0567-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 05/01/2018] [Indexed: 02/07/2023]
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14
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Sung J, Song YM. Genetic effects on serum testosterone and sex hormone-binding globulin in men: a Korean twin and family study. Asian J Androl 2016; 18:786-90. [PMID: 26486061 PMCID: PMC5000805 DOI: 10.4103/1008-682x.164923] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 04/07/2015] [Accepted: 07/22/2015] [Indexed: 11/22/2022] Open
Abstract
We conducted a community-based cross-sectional study to evaluate the role of genetics in determining the individual difference in total testosterone and sex hormone-binding globulin levels. Study participants comprised 730 Korean men consisting of 142 pairs of monozygotic twins, 191 pairs of siblings, and 259 father-offspring pairs from 270 families who participated in the Healthy Twin study. Serum concentration of total testosterone and sex hormone-binding globulin were measured by chemiluminescence immunoassay, and free testosterone and bioavailable testosterone were calculated using Vermeulen's method. Quantitative genetic analysis based on a variance decomposition model showed that the heritability of total testosterone, free testosterone, bioavailable testosterone, and sex hormone-binding globulin were 0.56, 0.45, 0.44, and 0.69, respectively after accounting for age and body mass index. Proportions of variance explained by age and body mass index varied across different traits, from 8% for total testosterone to 31% for sex hormone-binding globulin. Bivariate analysis showed a high degree of additive genetic correlation (ρG = 0.67) and a moderate degree of individual-specific environmental correlation (ρE = 0.42) between total testosterone and sex hormone-binding globulin. The findings confirmed the important role of genetics in determining the individually different levels of testosterone and sex hormone-binding globulin during adulthood in Korean men as found in non-Asian populations, which may suggest that common biologic control for determining testosterone level directly or indirectly through binding protein are largely shared among different populations.
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Affiliation(s)
- Joohon Sung
- Department of Epidemiology, School of Public Health, Seoul National University, Seoul 151-742, South Korea
- Institute of Health Environment, Seoul National University, Seoul 151-742, South Korea
| | - Yun-Mi Song
- Department of Family Medicine, Samsung Medical Center and Center for Clinical Research, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Seoul 135-710, South Korea
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Fabbri E, An Y, Gonzalez-Freire M, Zoli M, Maggio M, Studenski SA, Egan JM, Chia CW, Ferrucci L. Bioavailable Testosterone Linearly Declines Over A Wide Age Spectrum in Men and Women From The Baltimore Longitudinal Study of Aging. J Gerontol A Biol Sci Med Sci 2016; 71:1202-9. [PMID: 26921861 DOI: 10.1093/gerona/glw021] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 01/29/2016] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Age-related changes in testosterone levels in older persons and especially in women have not been fully explored. The objective of this study was to describe age-related trajectories of total testosterone (TT), ammonium sulfate precipitation-measured bioavailable testosterone (mBT), and sex hormone-binding glycoprotein (SHBG) in men and women from the Baltimore Longitudinal Study of Aging, with special focus on the oldest adults. METHODS Participants included 788 White men and women aged 30-96 years with excellent representation of old and oldest old, who reported not taking medications known to interfere with testosterone. Longitudinal data were included when available. TT, mBT, and SHBG were assayed. Age-related trajectories of mBT were compared with those obtained using calculated bioavailable testosterone (cBT). Generalized least square models were performed to describe age-related trajectories of TT, mBT, and SHBG in men and women. RESULTS mBT linearly declines over the life span and even at older ages in both sexes. In men, TT remains quite stable until the age of 70 years and then declines at older ages, whereas in women TT progressively declines in premenopausal years and slightly increases at older ages. Differences in age-related trajectories between total and bioavailable testosterone are only partially explained by age changes in SHBG, whose levels increases at accelerated rates in old persons. Noteworthy, although mBT and cBT highly correlated with one another, mBT is a much stronger correlate of chronological age than cBT. CONCLUSION In both men and women, mBT linearly declines over the life span and even at old ages. Its relationship with age-related phenotypes should be further investigated.
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Affiliation(s)
- Elisa Fabbri
- Translational Gerontology Branch, Longitudinal Study Section, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, Maryland. Department of Medical and Surgical Sciences, University of Bologna, Italy.
| | - Yang An
- Laboratory of Behavioral Neuroscience, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, Maryland
| | - Marta Gonzalez-Freire
- Translational Gerontology Branch, Longitudinal Study Section, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, Maryland
| | - Marco Zoli
- Department of Medical and Surgical Sciences, University of Bologna, Italy
| | - Marcello Maggio
- Department of Clinical and Experimental Medicine, University of Parma, Italy
| | - Stephanie A Studenski
- Translational Gerontology Branch, Longitudinal Study Section, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, Maryland
| | - Josephine M Egan
- Laboratory of Clinical Investigation, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, Maryland
| | - Chee W Chia
- Laboratory of Clinical Investigation, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, Maryland
| | - Luigi Ferrucci
- Translational Gerontology Branch, Longitudinal Study Section, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, Maryland
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Steffens JP, Wang X, Starr JR, Spolidorio LC, Van Dyke TE, Kantarci A. Associations Between Sex Hormone Levels and Periodontitis in Men: Results From NHANES III. J Periodontol 2015; 86:1116-25. [DOI: 10.1902/jop.2015.140530] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Stone NN, Miner M, Poage WL, Patel A, Crawford ED. Male Androgen Deficiency Syndrome Screening Questionnaire: A Simplified Instrument to Identify Testosterone-Deficient Men. JOURNAL OF MENS HEALTH 2014. [DOI: 10.1089/jomh.2013.0027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Steffens JP, Herrera BS, Coimbra LS, Stephens DN, Rossa C, Spolidorio LC, Kantarci A, Van Dyke TE. Testosterone regulates bone response to inflammation. Horm Metab Res 2014; 46:193-200. [PMID: 24526374 PMCID: PMC4522923 DOI: 10.1055/s-0034-1367031] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
This study evaluated the alveolar bone response to testosterone and the impact of Resolvin D2 (RvD2) on testosterone-induced osteoblast function. For the in vivo characterization, 60 male adult rats were used. Treatments established sub-physiologic (L), normal (N), or supra-physiologic (H) concentrations of testosterone. Forty rats were subjected to orchiectomy; 20 rats received periodical testosterone injections while 20 rats received testicular sham-operation. Four weeks after the surgeries, 10 rats in each group received a subgingival ligature around the lower first molars to induce experimental periodontal inflammation and bone loss. In parallel, osteoblasts were differentiated from neonatal mice calvariae and treated with various doses of testosterone for 48 h. Cell lysates and conditioned media were used for the determination of alkaline phosphatase, osteocalcin, RANKL, and osteoprotegerin. Micro-computed tomography linear analysis demonstrated that bone loss was significantly increased for both L and H groups compared to animals with normal levels of testosterone. Gingival IL-1β expression was increased in the L group (p<0.05). Ten nM testosterone significantly decreased osteocalcin, RANKL, and OPG levels in osteoblasts; 100 nM significantly increased the RANKL:OPG ratio. RvD2 partially reversed the impact of 10 nM testosterone on osteocalcin, RANKL, and OPG. These findings suggest that both L and H testosterone levels increase inflammatory bone loss in male rats. While low testosterone predominantly increases the inflammatory response, high testosterone promotes a higher osteoblast-derived RANKL:OPG ratio. The proresolving mediator RvD2 ameliorates testosterone-derived downregulation of osteocalcin, RANKL, and OPG in primary murine osteoblasts suggesting a direct role of inflammation in osteoblast function.
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Affiliation(s)
- J. P. Steffens
- Department of Physiology and Pathology, School of Dentistry at Araraquara – UNESP, São Paulo State University, Araraquara, SP, Brazil
- Department of Applied Oral Sciences, Center for Periodontology, The Forsyth Institute, Cambridge, MA, USA
| | - B. S. Herrera
- Department of Applied Oral Sciences, Center for Periodontology, The Forsyth Institute, Cambridge, MA, USA
| | - L. S. Coimbra
- Department of Physiology and Pathology, School of Dentistry at Araraquara – UNESP, São Paulo State University, Araraquara, SP, Brazil
| | - D. N. Stephens
- Department of Applied Oral Sciences, Center for Periodontology, The Forsyth Institute, Cambridge, MA, USA
| | - C. Rossa
- Department of Physiology and Pathology, School of Dentistry at Araraquara – UNESP, São Paulo State University, Araraquara, SP, Brazil
| | - L. C. Spolidorio
- Department of Physiology and Pathology, School of Dentistry at Araraquara – UNESP, São Paulo State University, Araraquara, SP, Brazil
| | - A. Kantarci
- Department of Applied Oral Sciences, Center for Periodontology, The Forsyth Institute, Cambridge, MA, USA
| | - T. E. Van Dyke
- Department of Applied Oral Sciences, Center for Periodontology, The Forsyth Institute, Cambridge, MA, USA
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Gettler LT, McDade TW, Feranil AB, Agustin SS, Kuzawa CW. Salivary estradiol and testosterone in Filipino men: Diurnal patterns and relationships with adiposity. Am J Hum Biol 2014; 26:376-83. [PMID: 24573919 DOI: 10.1002/ajhb.22528] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Revised: 01/25/2014] [Accepted: 02/01/2014] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVES We used detailed saliva sampling procedures to test for diurnal changes in men's salivary estradiol (E2) and testosterone (T) and assessed whether greater adiposity predicted higher E2 and T. METHODS We drew on a subsample of young adults enrolled in a long-running birth cohort study in Metro Cebu, Philippines. Subjects provided saliva samples at four time points during the day (waking, waking +40 min, early evening, and bedtime), which were assayed for E2 and T. Using these detailed hormonal data, we calculated E2 (n = 29) and T (n = 44) area-under-the-curve values, which provide insights on hormonal production over the study period. RESULTS While T declined immediately after waking and reached a nadir in the early evening, E2 did not show significant diurnal change (P ≥ 0.1) but was positively correlated to T at multiple time points (P ≤ 0.05). Subjects with higher adiposity (BMI, waist circumference, skinfolds) had elevated E2 secretion throughout the day (P ≤ 0.01), but adiposity was not related to salivary T. CONCLUSIONS Consistent with past research, our results indicate that adipose tissue is a significant site of E2 production in males but differ from a limited number of prior studies of young men in that we did not find lower T with increasing adiposity. Given E2's role in male hypothalamic-pituitary-gonadal function and complex interfaces with the immune system, these results have important implications for models of male life history as rates of overweight and obesity rise in populations around the world.
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Affiliation(s)
- Lee T Gettler
- Department of Anthropology, University of Notre Dame, Indiana
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Mazur A. Testosterone of young husbands rises with children in the home. Andrology 2013; 2:125-9. [PMID: 24265257 DOI: 10.1111/j.2047-2927.2013.00164.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Revised: 10/13/2013] [Accepted: 10/21/2013] [Indexed: 01/28/2023]
Abstract
Evolutionary theory suggests that a man's testosterone (T) decreases after his fathering of children, when his priority shifts from mating to cooperative parenting (Fatherhood: Evolution and Human Parental Behavior, 2010). A variation in this theory has T decreasing for highly educated fathers but increasing for less educated fathers (Evol Hum Behav, 33, 2012, 665). The Vietnam Experience Study of 4462 male army veterans is here used to explore related hypotheses: (i) that T decreases with the presence (or increasing number) of children in the man's home and (ii) that the T rises or falls depending on father's education. These related hypotheses are not supported. To the contrary, among young fathers, ages 30-35 years, T is higher with the presence and number of children in the home, independent of education.
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Affiliation(s)
- A Mazur
- Maxwell School, Syracuse University, Syracuse, NY, USA
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Mazur A, Westerman R, Mueller U. Is rising obesity causing a secular (age-independent) decline in testosterone among American men? PLoS One 2013; 8:e76178. [PMID: 24146834 PMCID: PMC3797769 DOI: 10.1371/journal.pone.0076178] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Accepted: 08/22/2013] [Indexed: 11/18/2022] Open
Abstract
The testosterone of men in industrial societies peaks in their twenties and tends to decline with increasing age. Apart from this individual-level decline, there have been reports of a secular (age-independent population-level) decline in testosterone among American and Scandinavian men during the past few decades, possibly an indication of declining male reproductive health. It has been suggested that both declines in testosterone (individual-level and population-level) are due to increasing male obesity because men in industrial society tend to add body fat as they age, and overall rates of obesity are increasing. Using an unusually large and lengthy longitudinal dataset (991 US Air Force veterans examined in six cycles over 20 years), we investigate the relationship of obesity to individual and population-level declines in testosterone. Over twenty years of study, longitudinal decline in mean testosterone was at least twice what would be expected from cross-sectional estimates of the aging decline. Men who put on weight intensified their testosterone decline, some greatly so, but even among those who held their weight constant or lost weight during the study, mean testosterone declined 117 ng/dl (19%) over 20 years. We have not identified the reason for secular decline in testosterone, but we exclude increasing obesity as a sufficient or primary explanation, and we deny the supposition that men who avoid excessive weight will maintain their youthful levels of testosterone.
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Affiliation(s)
- Allan Mazur
- Maxwell School, Syracuse University, Syracuse, New York, United States of America
- * E-mail:
| | - Ronny Westerman
- Institute for Medical Sociology and Social Medicine, Phillips University Marburg, Marburg, Germany
| | - Ulrich Mueller
- Institute for Medical Sociology and Social Medicine, Phillips University Marburg, Marburg, Germany
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Lopez DS, Peskoe SB, Joshu CE, Dobs A, Feinleib M, Kanarek N, Nelson WG, Selvin E, Rohrmann S, Platz EA. Racial/ethnic differences in serum sex steroid hormone concentrations in US adolescent males. Cancer Causes Control 2013; 24:817-26. [PMID: 23354421 DOI: 10.1007/s10552-013-0154-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Accepted: 01/15/2013] [Indexed: 11/24/2022]
Abstract
OBJECTIVE Contrary to the hypothesis that the racial/ethnic disparity in prostate cancer has a hormonal basis, we did not observe a difference in serum testosterone concentration between non-Hispanic black and white men in the Third National Health and Nutrition Examination Survey (NHANES III), although non-Hispanic black men had a higher estradiol level. Unexpectedly, Mexican-American men had the highest testosterone level. Next, we evaluated whether the same patterns are observed during adolescence, the time of prostate maturation. METHODS We measured serum testosterone, estradiol, and sex hormone-binding globulin (SHBG) by immunoassay in 134 males aged 12-19 in NHANES III. Mean concentrations were compared by race/ethnicity adjusting for age, Tanner stage, percent body fat, waist, physical activity, tobacco smoke, and the other hormones. RESULTS After multivariable adjustment, in the 12-15-year-old males, testosterone concentration was lower in non-Hispanic blacks than whites (p = 0.043), SHBG concentration did not significantly differ between the two groups. Mexican-Americans had the highest testosterone (versus non-Hispanic black: p = 0.002) and lowest SHBG (versus non-Hispanic white: p = 0.010; versus non-Hispanic black: p = 0.047) concentrations. Estradiol concentration was lower in non-Hispanic blacks (p = 0.11) and Mexican-Americans (p = 0.033) compared with non-Hispanic whites. After multivariable adjustment, in the 16-19-year-old males, testosterone, estradiol, and SHBG concentrations did not differ between non-Hispanic blacks and whites. Mexican-Americans had the highest testosterone concentration (versus non-Hispanic white: p = 0.08), but did not differ from the other groups on estradiol and SHBG concentrations. In both age groups, these patterns were generally present, but less pronounced after adjusting for age and Tanner stage only. CONCLUSION In adolescent males, non-Hispanic blacks did not have a higher testosterone concentration than non-Hispanic whites, and Mexican-Americans had the highest testosterone concentration, patterns similar to adult males.
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Affiliation(s)
- David S Lopez
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
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Hattangadi JA, Chen MH, D'Amico AV. Early detection of high-grade prostate cancer using digital rectal examination (DRE) in men with a prostate-specific antigen level of <2.5 ng/mL and the risk of death. BJU Int 2012; 110:1636-41. [PMID: 22757982 DOI: 10.1111/j.1464-410x.2012.11354.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
UNLABELLED Study Type--Prognosis (inception cohort) Level of Evidence 2a. What's known on the subject? and What does the study add? There is little data on the utility of digital rectal examination (DRE) as a diagnostic tool in the era of prostate-specific antigen (PSA) testing. Using a population-based database, we found that detection of prostate cancer while still localized among men with high-grade PSA-occult disease may result in survival benefit. OBJECTIVE • To determine whether detection of high-grade prostate cancer while still clinically localised on digital rectal examination (DRE) can improve survival in men with a normal prostate-specific antigen (PSA) level. PATIENTS AND METHODS • From the Surveillance, Epidemiology and End Results database, 166,104 men with prostate cancer diagnosed between 2004 and 2007 were identified. • Logistic regression was used to identify factors associated with the occurrence of palpable, PSA-occult (PSA level of <2.5 ng/mL), Gleason score 8-10 prostate cancer. • Fine and Gray's and Cox multivariable regressions were used to analyse whether demographic, treatment, and clinicopathological factors were associated with the risk of prostate cancer-specific mortality (PCSM) and all-cause mortality (ACM), respectively. RESULTS • Both increasing age (adjusted odds ratio [aOR] 1.02, 95% confidence interval (CI) 1.01-1.03; P < 0.001) and White race (aOR 1.26, 95% CI 1.03-1.54; P = 0.027) were associated with palpable, Gleason 8-10 prostate cancer. Of 166,104 men, 685 (0.4%) had this subset of prostate cancer. • Significant factors associated with risk of PCSM included PSA level (adjusted hazard ratio [aHR] 0.71, 95% CI 0.51-0.99; P = 0.04), higher Gleason score (aHR 2.20, 95% CI 1.25-3.87; P = 0.006), and T3-T4 vs T2 disease (aHR 3.11, 95% CI 1.79-5.41; P < 0.001). • Significant factors associated with risk of ACM included age (aHR 1.03, 95% CI 1.01-1.06; P = 0.006), higher Gleason score (aHR 2.05, 95% CI 1.36-3.09; P < 0.001), and T3-T4 vs T2 disease (aHR 2.11, 95% CI 1.38-3.25, P < 0.001) CONCLUSIONS • Clinically localised disease on DRE among men with PSA-occult high-grade prostate cancer was associated with improved PCSM and ACM, suggesting that DRE in this cohort (older age and White race) may have the potential to improve survival.
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Ritchey J, Karmaus W, Sabo-Attwood T, Steck SE, Zhang H. A cross-sectional study of the association of age, race and ethnicity, and body mass index with sex steroid hormone marker profiles among men in the National Health and Nutrition Examination Survey (NHANES III). BMJ Open 2012; 2:bmjopen-2012-001315. [PMID: 23043125 PMCID: PMC3488758 DOI: 10.1136/bmjopen-2012-001315] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVES Since sex hormone markers are metabolically linked, examining sex steroid hormones singly may account for inconsistent findings by age, race/ethnicity and body mass index (BMI) across studies. First, these markers were statistically combined into profiles to account for the metabolic relationship between markers. Then, the relationships between sex steroid hormone profiles and age, race/ethnicity and BMI were explored in multinomial logistic regression models. DESIGN Cross-sectional survey. SETTING The US Third National Health and Nutrition Examination Survey (NHANES III). PARTICIPANTS 1538 Men, >17 years. PRIMARY OUTCOME MEASURE Sex hormone profiles. RESULTS Cluster analysis was used to identify four statistically determined profiles with Blom-transformed T, E, sex hormone binding globulin (SHBG), and 3-α diol G. We used these four profiles with multinomial logistic regression models to examine differences by race/ethnicity, age and BMI. Mexican American men >50 years were associated with the profile that had lowest T, E and 3-α diol G levels compared to other profiles (p<0.05). Non-Hispanic Black, overweight (25-29.9 kg/m(2)) and obese (>30 kg/m(2)) men were most likely to be associated with the cluster with the lowest SHBG (p<0.05). CONCLUSION The associations of sex steroid hormone profiles by race/ethnicity are novel, while the findings by age and BMI groups are largely consistent with observations from single hormone studies. Future studies should validate these hormone profile groups and investigate these profiles in relation to chronic diseases and certain cancers.
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Affiliation(s)
- Jamie Ritchey
- Epidemiology and Biostatistics, University of South Carolina, Columbia, South Carolina, USA
| | - Wilfried Karmaus
- Epidemiology and Biostatistics, University of South Carolina, Columbia, South Carolina, USA
| | - Tara Sabo-Attwood
- Epidemiology and Biostatistics, University of South Carolina, Columbia, South Carolina, USA
| | - Susan E Steck
- Epidemiology and Biostatistics, University of South Carolina, Columbia, South Carolina, USA
- Cancer Prevention and Control Program, University of South Carolina, Columbia, South Carolina, USA
| | - Hongmei Zhang
- Epidemiology and Biostatistics, University of South Carolina, Columbia, South Carolina, USA
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Longitudinal evidence that fatherhood decreases testosterone in human males. Proc Natl Acad Sci U S A 2011; 108:16194-9. [PMID: 21911391 DOI: 10.1073/pnas.1105403108] [Citation(s) in RCA: 314] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
In species in which males care for young, testosterone (T) is often high during mating periods but then declines to allow for caregiving of resulting offspring. This model may apply to human males, but past human studies of T and fatherhood have been cross-sectional, making it unclear whether fatherhood suppresses T or if men with lower T are more likely to become fathers. Here, we use a large representative study in the Philippines (n = 624) to show that among single nonfathers at baseline (2005) (21.5 ± 0.3 y), men with high waking T were more likely to become partnered fathers by the time of follow-up 4.5 y later (P < 0.05). Men who became partnered fathers then experienced large declines in waking (median: -26%) and evening (median: -34%) T, which were significantly greater than declines in single nonfathers (P < 0.001). Consistent with the hypothesis that child interaction suppresses T, fathers reporting 3 h or more of daily childcare had lower T at follow-up compared with fathers not involved in care (P < 0.05). Using longitudinal data, these findings show that T and reproductive strategy have bidirectional relationships in human males, with high T predicting subsequent mating success but then declining rapidly after men become fathers. Our findings suggest that T mediates tradeoffs between mating and parenting in humans, as seen in other species in which fathers care for young. They also highlight one likely explanation for previously observed health disparities between partnered fathers and single men.
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Rohrmann S, Platz EA, Selvin E, Shiels MS, Joshu CE, Menke A, Feinleib M, Basaria S, Rifai N, Dobs AS, Kanarek N, Nelson WG. The prevalence of low sex steroid hormone concentrations in men in the Third National Health and Nutrition Examination Survey (NHANES III). Clin Endocrinol (Oxf) 2011; 75:232-9. [PMID: 21521312 PMCID: PMC3130833 DOI: 10.1111/j.1365-2265.2011.04043.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Physiologic processes during ageing leading to multi-morbidity and diseases that increase risk of premature death may be influenced by ageing-associated changes in endogenous hormone production. OBJECTIVE To evaluate the decline in sex steroid hormone levels across age and estimate the number of US men 40+ years old who may have low hormone levels. DESIGN We measured serum testosterone, oestradiol and sex hormone binding globulin by immunoassay in 1351 men 20+ years old in Third National Health and Nutrition Examination Survey. We estimated free hormones by mass action. RESULTS Free testosterone declined most rapidly with age (a 2% decline in geometric mean concentration occurred after ageing 1·3 years), followed by total testosterone (2·4 years), free oestradiol (4·1 years) and total oestradiol (8·1 years). These hormone changes with age translated into 25·0% and 30·2% of men 70+ years old having low total (which we defined as <10·4 nm) and free (<0·17 nm) testosterone, respectively, and 8·3% and 23·9% having low total (<73·4 pm) and free (<2·2 pm) oestradiol. Using population size projections between the 2000 and 2010 Censuses, we estimated that 8·4 (95% CI 4·7-12·2), 6·2 (3·1-9·2) and 6·0 (3·1-9·0) million men 40+ years old may have low total testosterone, free testosterone and free oestradiol, respectively. The prevalences were only modestly lower in men without prevalent chronic diseases. CONCLUSION Although no consensus exists for defining low hormone levels in ageing men, a substantial number of US men may have low sex steroid hormone levels, possibly putting them at risk for adverse health consequences and premature death.
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Affiliation(s)
- Sabine Rohrmann
- Department of Cancer Epidemiology and Prevention, Institute of Social and Preventive Medicine, University of Zurich, Zurich, Switzerland.
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Fleishman SB, Khan H, Homel P, Suhail MF, Strebel-Amrhein R, Mohammad F, Mahajan D, Rosenwald V, Guarino MJ, Mirzoyev T, Wozniak TF, Suppiah K. Testosterone Levels and Quality of Life in Diverse Male Patients With Cancers Unrelated to Androgens. J Clin Oncol 2010; 28:5054-60. [DOI: 10.1200/jco.2010.30.3818] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Purpose Symptoms secondary to hormonal changes significantly impact quality of life (QoL) in patients with cancer. This cross-sectional study examines prevalence of hypogonadism and its correlation with QoL and sexual dysfunction. Patients and Methods We collected blood and medical histories from 428 male patients with non–testosterone-related cancer at three cancer centers. Serum was analyzed for total testosterone (TT), free testosterone (FT), bioavailable testosterone (BAT), and sex hormone binding globulin (SHBG). The Functional Assessment of Cancer Therapy-Prostate (FACT-P) QoL questionnaire measured physical, social, emotional, and functional domains as well as sexual function. Exclusion criteria were prostate, testicular, or male breast cancer; known hypogonadism; and HIV. Results Mean and median TTs were 337.46 and 310 ng/dL, respectively. The mean age of patients was 62.05 years. The crude prevalence of hypogonadism (ie, TT < 300 ng/dL) was 48%, and mean TT in hypogonadal patients was 176 ng/dL. The prevalences that were based on FT (ie, hypogonadal < 52 pg/dL) and BAT (ie, hypogonadal < 95 ng/dL) were 78% and 66%, respectively. The mean FT and BAT values in hypogonadal patients were 25 pg/dL and 45 ng/dL, respectively. Hypogonadal patients had decreased total QoL scores on FACT-P (P = .01) and decreased three-item sexual function subset (P = .003). Conclusion The prevalence of hypogonadism was unexpectedly high. Measurement of FT or BAT detected a higher prevalence than TT alone, which confirmed previous studies. Correlation of T with FACT-P showed significant reduction of both overall QoL and sexual function for hypogonadal men. BAT and FT levels showed a stronger correlation than TT with overall FACT-P and subscales. The prevalence of symptomatic hypogonadism in male patients with cancer exceeds that found in comparable studies in noncancer populations.
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Affiliation(s)
- Stewart B. Fleishman
- From the Continuum Cancer Centers of New York, Beth Israel Medical Center and St Luke's-Roosevelt Hospital, New York, NY; and the Helen F. Graham Cancer Center, Newark, DE
| | - Hina Khan
- From the Continuum Cancer Centers of New York, Beth Israel Medical Center and St Luke's-Roosevelt Hospital, New York, NY; and the Helen F. Graham Cancer Center, Newark, DE
| | - Peter Homel
- From the Continuum Cancer Centers of New York, Beth Israel Medical Center and St Luke's-Roosevelt Hospital, New York, NY; and the Helen F. Graham Cancer Center, Newark, DE
| | - Mohammad F. Suhail
- From the Continuum Cancer Centers of New York, Beth Israel Medical Center and St Luke's-Roosevelt Hospital, New York, NY; and the Helen F. Graham Cancer Center, Newark, DE
| | - Rotraud Strebel-Amrhein
- From the Continuum Cancer Centers of New York, Beth Israel Medical Center and St Luke's-Roosevelt Hospital, New York, NY; and the Helen F. Graham Cancer Center, Newark, DE
| | - Farhan Mohammad
- From the Continuum Cancer Centers of New York, Beth Israel Medical Center and St Luke's-Roosevelt Hospital, New York, NY; and the Helen F. Graham Cancer Center, Newark, DE
| | - Divya Mahajan
- From the Continuum Cancer Centers of New York, Beth Israel Medical Center and St Luke's-Roosevelt Hospital, New York, NY; and the Helen F. Graham Cancer Center, Newark, DE
| | - Victoria Rosenwald
- From the Continuum Cancer Centers of New York, Beth Israel Medical Center and St Luke's-Roosevelt Hospital, New York, NY; and the Helen F. Graham Cancer Center, Newark, DE
| | - Michael J. Guarino
- From the Continuum Cancer Centers of New York, Beth Israel Medical Center and St Luke's-Roosevelt Hospital, New York, NY; and the Helen F. Graham Cancer Center, Newark, DE
| | - Tahir Mirzoyev
- From the Continuum Cancer Centers of New York, Beth Israel Medical Center and St Luke's-Roosevelt Hospital, New York, NY; and the Helen F. Graham Cancer Center, Newark, DE
| | - Timothy F. Wozniak
- From the Continuum Cancer Centers of New York, Beth Israel Medical Center and St Luke's-Roosevelt Hospital, New York, NY; and the Helen F. Graham Cancer Center, Newark, DE
| | - Kathiresan Suppiah
- From the Continuum Cancer Centers of New York, Beth Israel Medical Center and St Luke's-Roosevelt Hospital, New York, NY; and the Helen F. Graham Cancer Center, Newark, DE
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