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Vishnevsky G, Sinnreich R, Nassar H, Merom D, Ish-Shalom M, Kark JD, Levine H. Different Factors Are Associated With Sex Hormones and Leydig Cell Function in Israelis and Palestinians in Jerusalem. Am J Mens Health 2022; 16:15579883221106060. [PMID: 35815720 PMCID: PMC9277445 DOI: 10.1177/15579883221106060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Total testosterone (TT) is known to influence health and virility in men. Among
men from United States and Europe, numerous sociodemographic and lifestyle
factors were reported to be associated with TT. However, associations with TT
and Leydig cell function in the Middle East are poorly described. A
cross-sectional, population-based sample had a structured interview, physical
examinations, and blood tests in two hospitals in Jerusalem, Israel. A subsample
(25- to 44-year-old men, n = 286: 124 Israelis, 162
Palestinians) had sex hormone measurements. The primary outcomes were TT and
free testosterone/luteinizing hormone (FT/LH) ratio, representing Leydig cell
function. Associations with sociodemographic and lifestyle factors, body mass
index (BMI), and physical activity (PA) were evaluated using multivariable
linear regression. Compared with Palestinians, Israelis had similar TT (4.81 vs.
5.09 ng/mL, p = .405) and higher FT/LH (31.2 vs. 25.8 ng/IU,
p = .002). In ln-transformed values, marital status had a
stronger association in Palestinians (P for interaction = 0.03). Age, BMI, and
PA had a stronger association with TT in Israelis with significant interactions
with ethnicity. BMI <25 and a higher PA quartile were associated with a
higher TT (p < .001). Among Israelis, age
(p = .007), married marital status (p =
.007), and BMI <25 were significantly associated with FT/LH. No associations
of any factors were identified among Palestinians. Associations with several
modifiable factors identified in Western samples were replicated in Israelis and
to a lesser degree in Palestinians. Different relationships of several factors
with TT and FT/LH could result from ethnically diverse genetic,
sociodemographic, and behavioral characteristics that warrant further
research.
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Affiliation(s)
- Guy Vishnevsky
- Braun School of Public Health and Community Medicine, Hadassah University Medical Center, The Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Ronit Sinnreich
- Braun School of Public Health and Community Medicine, Hadassah University Medical Center, The Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Hisham Nassar
- Department of Cardiology, Hadassah University Medical Center, Jerusalem, Israel
| | - Dafna Merom
- School of Health Sciences, Western Sydney University, Penrith, NSW, Australia
| | - Maya Ish-Shalom
- The Institute of Endocrinology, Metabolism and Hypertension, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Jeremy D Kark
- Braun School of Public Health and Community Medicine, Hadassah University Medical Center, The Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Hagai Levine
- Braun School of Public Health and Community Medicine, Hadassah University Medical Center, The Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
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2
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Evidence for an adolescent sensitive period to family experiences influencing adult male testosterone production. Proc Natl Acad Sci U S A 2022; 119:e2202874119. [PMID: 35639692 DOI: 10.1073/pnas.2202874119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
SignificanceTestosterone influences how animals devote energy and time toward reproduction, including opposing demands of mating and competition versus parenting. Reflecting this, testosterone often declines in new fathers and lower testosterone is linked to greater caregiving. Given these roles, there is strong interest in factors that affect testosterone, including early-life experiences. In this multidecade study, Filipino sons whose fathers were present and involved with raising them when they were adolescents had lower testosterone when they later became fathers, compared to sons whose fathers were present but uninvolved or were not coresident. Sons' own parenting behaviors did not explain these patterns. These results connect key social experiences during adolescence to adult testosterone, and point to possible intergenerational effects of parenting style.
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3
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Lidborg LH, Cross CP, Boothroyd LG. A meta-analysis of the association between male dimorphism and fitness outcomes in humans. eLife 2022; 11:e65031. [PMID: 35179485 PMCID: PMC9106334 DOI: 10.7554/elife.65031] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 02/17/2022] [Indexed: 11/13/2022] Open
Abstract
Humans are sexually dimorphic: men and women differ in body build and composition, craniofacial structure, and voice pitch, likely mediated in part by developmental testosterone. Sexual selection hypotheses posit that, ancestrally, more 'masculine' men may have acquired more mates and/or sired more viable offspring. Thus far, however, evidence for either association is unclear. Here, we meta-analyze the relationships between six masculine traits and mating/reproductive outcomes (96 studies, 474 effects, N = 177,044). Voice pitch, height, and testosterone all predicted mating; however, strength/muscularity was the strongest and only consistent predictor of both mating and reproduction. Facial masculinity and digit ratios did not significantly predict either. There was no clear evidence for any effects of masculinity on offspring viability. Our findings support arguments that strength/muscularity may be sexually selected in humans, but cast doubt regarding selection for other forms of masculinity and highlight the need to increase tests of evolutionary hypotheses outside of industrialized populations.
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Affiliation(s)
- Linda H Lidborg
- Department of Psychology, Durham UniversityDurhamUnited Kingdom
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4
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Macdowall WG, Clifton S, Palmer MJ, Tanton C, Copas AJ, Lee DM, Mitchell KR, Mercer CH, Sonnenberg P, Johnson AM, Wellings K. Salivary Testosterone and Sexual Function and Behavior in Men and Women: Findings from the Third British National Survey of Sexual Attitudes and Lifestyles (Natsal-3). JOURNAL OF SEX RESEARCH 2022; 59:135-149. [PMID: 34634954 PMCID: PMC7613951 DOI: 10.1080/00224499.2021.1968327] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Using data from the third British National Survey of Sexual Attitudes and Lifestyles (Natsal-3) we examined associations between salivary testosterone (Sal-T) and sexual function and behavior. Single morning saliva samples were self-collected from a subsample of participants aged 18-74 years and analyzed using mass spectrometry. 1,599 men and 2,123 women were included in the analysis (40.6% of those invited to provide a sample). We adjusted for confounders in a stepwise manner: in model 1 we adjusted for age only; model 2 for age, season and relationship status, and model 3 we added BMI and self-reported health. In the fully adjusted models, among men, Sal-T was positively associated with both partnered sex (vaginal sex and concurrent partners) and masturbation. Among women, Sal-T was positively associated with masturbation, the only association with partnered sex was with ever experience of same-sex sex. We found no clear association between Sal-T and sexual function. Our study contributes toward addressing the sparsity of data outside the laboratory on the differences between men and women in the relationship between T and sexual function and behavior. To our knowledge, this is the first population study, among men and women, using a mass spectrometry Sal-T assay to do so.
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Affiliation(s)
- W G Macdowall
- Department of Public Health, Environments and Society, Faculty of Public Health and Policy, London School of Hygiene & Tropical Medicine
| | - S Clifton
- Institute for Global Health, University College London, Mortimer Market Centre
- NatCen Social Research
| | - M J Palmer
- Department of Public Health, Environments and Society, Faculty of Public Health and Policy, London School of Hygiene & Tropical Medicine
| | - C Tanton
- Department of Global Health and Development, Faculty of Public Health and Policy, London School of Hygiene & Tropical Medicine
| | - A J Copas
- Institute for Global Health, University College London, Mortimer Market Centre
| | - D M Lee
- Faculty of Health, Psychology and Social Care, Manchester Metropolitan University
| | - K R Mitchell
- MRC/CSO Social and Public Health Sciences Unit, University of Glasgow
| | - C H Mercer
- Institute for Global Health, University College London, Mortimer Market Centre
| | - P Sonnenberg
- Institute for Global Health, University College London, Mortimer Market Centre
| | - A M Johnson
- Institute for Global Health, University College London, Mortimer Market Centre
| | - K Wellings
- Department of Public Health, Environments and Society, Faculty of Public Health and Policy, London School of Hygiene & Tropical Medicine
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5
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Chen Z, Qiu S, Zhang C, Zhan Y, Liu L, Bao Y, Chen B, Bai Y, Zheng X, Huang Y, Jin K, Han P, Wei Q. Association of urinary organophosphate esters level with sex steroid hormones levels in adult males: A nationwide study, NHANES 2013-2014. Andrology 2021; 10:567-575. [PMID: 34964561 DOI: 10.1111/andr.13149] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/09/2021] [Accepted: 12/20/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND Exposure to environmental pollution via different mechanisms is associated with multiple endocrine dysfunctions. Organophosphate esters (OPEs) are endocrine-disrupting chemicals that affect sex steroid hormones. PURPOSE We aimed to study the effect of OPEs and their metabolites, such as dibutyl phosphate [DPHP], bis(1,3-dichloro-2-propyl) phosphate [BDCPP], bis(2-chloroethyl) phosphate [BCEP], and dibutyl phosphate [DBUP], on sex steroid hormones in males. DESIGN, SETTING, PARTICIPANTS, AND INTERVENTION This cross-sectional analytical study analyzed data from the 2013-2014 National Health and Nutrition Examination Survey among 763 male participants aged ≥20 years. MAIN OUTCOME MEASURES The relationships between the metabolites of OPEs and total testosterone, estradiol, sex hormone-binding globulin, and the ratio of total testosterone to estradiol (a parameter derived from total testosterone and estradiol) were evaluated using multivariate linear regression models that were adjusted for potential confounders. RESULTS A total of 763 participants, with a mean age of 44.59 (±15.59) years, were enrolled. Of these, 65.7% participants had non-Hispanic white ancestry, 9.83% had non-Hispanic black ancestry, and 15.97% had Hispanic ancestry. Participants with higher urinary level of DPHP had a lower level of total testosterone and estradiol. Moreover, higher urinary levels of BDCPP were associated with higher estradiol. CONCLUSION According to our study, which is based on a representative population of US adults, exposure to OPEs was significantly associated with altered sex hormone levels (total testosterone and estradiol). Further studies focused on the underlying mechanisms regarding the association between each metabolite and sex steroid hormones are required. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Zeyu Chen
- Department of Urology and Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China.,West China School of Clinical Medicine, Sichuan University, Chengdu, China
| | - Shi Qiu
- Department of Urology and Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China.,Center of Biomedical big data, West China Hospital, Sichuan University, Chengdu, China
| | - Chichen Zhang
- Department of Urology and Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China.,West China School of Clinical Medicine, Sichuan University, Chengdu, China
| | - Yu Zhan
- Department of Environmental Science and Engineering, Sichuan University, Chengdu, China
| | - Liangren Liu
- Department of Urology and Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Yige Bao
- Department of Urology and Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Bo Chen
- Department of Urology and Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China.,Department of Environmental Science and Engineering, Sichuan University, Chengdu, China
| | - Yunjin Bai
- Department of Urology and Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaonan Zheng
- Department of Urology and Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Yin Huang
- Department of Urology and Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China.,West China School of Clinical Medicine, Sichuan University, Chengdu, China
| | - Kun Jin
- Department of Urology and Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China.,West China School of Clinical Medicine, Sichuan University, Chengdu, China
| | - Ping Han
- Department of Urology and Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Qiang Wei
- Department of Urology and Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
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6
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Maternal Cortisol and Paternal Testosterone Correlated with Infant Growth via Mini Puberty. ADAPTIVE HUMAN BEHAVIOR AND PHYSIOLOGY 2021. [DOI: 10.1007/s40750-021-00175-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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7
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Horrell ND, Acosta MC, Saltzman W. Plasticity of the paternal brain: Effects of fatherhood on neural structure and function. Dev Psychobiol 2021; 63:1499-1520. [PMID: 33480062 PMCID: PMC8295408 DOI: 10.1002/dev.22097] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 12/14/2020] [Accepted: 12/23/2020] [Indexed: 12/12/2022]
Abstract
Care of infants is a hallmark of mammals. Whereas parental care by mothers is obligatory for offspring survival in virtually all mammals, fathers provide care for their offspring in only an estimated 5%-10% of genera. In these species, the transition into fatherhood is often accompanied by pronounced changes in males' behavioral responses to young, including a reduction in aggression toward infants and an increase in nurturant behavior. The onset of fatherhood can also be associated with sensory, affective, and cognitive changes. The neuroplasticity that mediates these changes is not well understood; however, fatherhood can alter the production and survival of new neurons; function and structure of existing neurons; morphology of brain structures; and neuroendocrine signaling systems. Although these changes are thought to promote infant care by fathers, very little evidence exists to support this hypothesis; in most cases, neither the mechanisms underlying neuroplasticity in fathers nor its functional significance is known. In this paper, we review the available data on the neuroplasticity that occurs during the transition into fatherhood. We highlight gaps in our knowledge and future directions that will provide key insights into how and why fatherhood alters the structure and functioning of the male brain.
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Affiliation(s)
| | - Melina C. Acosta
- Graduate Program in Neuroscience and Department of Evolution, Ecology, and Organismal Biology, University of California, Riverside, CA USA
| | - Wendy Saltzman
- Graduate Program in Neuroscience and Department of Evolution, Ecology, and Organismal Biology, University of California, Riverside, CA USA
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8
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Filser A, Barclay K, Beckley A, Uggla C, Schnettler S. Are skewed sex ratios associated with violent crime? A longitudinal analysis using Swedish register data. EVOL HUM BEHAV 2021. [DOI: 10.1016/j.evolhumbehav.2020.10.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Cheng Z, Zhang Z, Lin H, Meng Q, Xin L, Wang T, Wang W, Wang L. Focus on patients with early esophageal cancer-a prognostic nomogram. Transl Cancer Res 2020; 9:7469-7478. [PMID: 35117347 PMCID: PMC8797496 DOI: 10.21037/tcr-19-1645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Accepted: 03/03/2020] [Indexed: 11/21/2022]
Abstract
Background Esophageal cancer is a common cancer of the digestive system, with high morbidity and poor prognosis. However, while the prognosis of early esophageal cancer is relatively good, there is no effective model to accurately predict the prognosis of early esophageal cancer. The Aims of this study are to explore risk factors for the prognosis of early esophageal cancer and to establish a prediction nomogram for patients. Methods Surveillance, Epidemiology and End Results (SEER) Stat 8.3.5 was used to collect 2,351 cases of early esophageal cancer from 2004 to 2015 in the SEER database. Early esophageal cancer is defined as a lesion that is confined to the lamina propria and the muscularis mucosa. Prognostic factors were analyzed with the log-rank method and a Cox proportional hazard model by SPSS (v25.0). Independent prognostic factors were used to construct a nomogram with a Cox proportional hazard model. The C-index was used to evaluate the prediction effect of the nomogram. The internal validity of the nomogram was tested by discrimination and calibration using a bootstrap method with 1,000 resamplings. Results The median survival time was 30 months, and the 1-, 3-, and 5-year survival rates were 65.2%, 46.8%, and 41.6%, respectively. The male to female ratio was 3:1, and 85.33% of all patients were white. Univariate analysis showed that risk factors affecting patient prognosis included age (χ2=430.631, P<0.001), sex (χ2=48.1, P<0.001), marital status (χ2=107.597, P<0.001), race (χ2=58.928, P<0.001), primary site (χ2=98.675, P<0.001), tumor grade (χ2=116.421, P<0.001), surgery (χ2=1,259.33, P<0.001) and histologic type (χ2=231.062, P<0.001). Using multivariate analysis, we found that age (HR=1.787, 95% CI: 1.58–2.03), marital status (HR=0.774, 95% CI: 0.69–0.87), tumor grade (HR=1.241, 95% CI: 1.14–135), and surgery (HR=0.356, 95% CI: 0.33–0.39) were independent prognostic factors for patients with early esophageal cancer. We constructed the nomogram with the above independent factors, and the C-index value was 0.788. Conclusions This study obtained the latest epidemiological information on early esophageal cancer and determined that age, marital status, tumor grade and surgery were independent prognostic factors for early esophageal cancer. The nomogram developed with these factors could provide good prognosis prediction.
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Affiliation(s)
- Zhiyuan Cheng
- College of Basic Medical Sciences, Naval Medical University, Shanghai, China
| | - Zifan Zhang
- College of Basic Medical Sciences, Naval Medical University, Shanghai, China
| | - Han Lin
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Qianqian Meng
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Lei Xin
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Tianjiao Wang
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Wei Wang
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Luowei Wang
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai, China
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10
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In Experimental Dilated Cardiomyopathy Heart Failure and Survival Are Adversely Affected by a Lack of Sexual Interactions. Int J Mol Sci 2020; 21:ijms21155450. [PMID: 32751757 PMCID: PMC7432836 DOI: 10.3390/ijms21155450] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 07/28/2020] [Accepted: 07/28/2020] [Indexed: 02/07/2023] Open
Abstract
Nearly one in three people in the U.S. will develop heart failure (HF), characterized by fluid retention (edema) in the lungs and elsewhere. This leads to difficult breathing, deterioration of physical capacity, restriction of normal activities and death. There is little data about the safety and effects of sexual interactions in patients with HF. We tested whether a lack of sexual interactions affected pathophysiological outcomes in a pre-clinical mouse model of dilated cardiomyopathy that recapitulates the progressive stages of human HF. Male mice were randomly given access to, or deprived from, sexual interactions with female mice, which were confirmed by videography and generation of offspring. Cohousing with access to sexual interactions markedly prolonged survival, while cohousing without access to sexual activity did not. Sexual interactions improved systolic function, reduced HF-associated edema, altered transcription of heart contractile protein genes and decreased plasma testosterone levels. To determine whether testosterone levels contributed to survival, testosterone levels were experimentally reduced. Reduction of testosterone levels significantly prolonged survival. Taken together, in mice with dilated cardiomyopathy, sexual activity altered cardiac contractile gene transcription, improved systolic function, reduced edema and prolonged survival which may be in part due to lower testosterone levels.
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11
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Gray PB, Straftis AA, Bird BM, McHale TS, Zilioli S. Human reproductive behavior, life history, and the Challenge Hypothesis: A 30-year review, retrospective and future directions. Horm Behav 2020; 123:104530. [PMID: 31085183 DOI: 10.1016/j.yhbeh.2019.04.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 04/29/2019] [Accepted: 04/30/2019] [Indexed: 12/22/2022]
Abstract
The Challenge Hypothesis (Wingfield et al., 1990) originally focused on adult male avian testosterone elevated in response to same-sex competition in reproductive contexts. The purpose of the present paper is to demonstrate how the Challenge Hypothesis has shaped ideas about human life histories. We conduct a citation analysis, drawing upon 400 Google Scholar citations in the human literature to identify patterns in this body of scholarship. We cover key factors, such as context and personality traits, that help explain variable testosterone responses such as winning/losing to adult competitive behavior. Findings from studies on courtship and sexual behavior indicate some variation in testosterone responses depending on factors such as motivation. A large body of research indicates that male testosterone levels are often lower in contexts of long-term committed partnerships and nurturant fathering and aligned with variation in male mating and parenting effort. As the Challenge Hypothesis is extended across the life course, DHEA and androstenedione (rather than testosterone) appear more responsive to juvenile male competitive behavior, and during reproductive senescence, baseline male testosterone levels decrease just as male life history allocations show decreased mating effort. We discuss how research on testosterone administration, particularly in older men, provides causal insight into effects of testosterone in humans, and how this "natural experiment" can be viewed in light of the Challenge Hypothesis. We synthesize central concepts and findings, such as an expanded array of costs of testosterone that inform life history tradeoffs between maintenance and reproductive effort, and we conclude with directions for future research.
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Affiliation(s)
- Peter B Gray
- Department of Anthropology, University of Nevada, Las Vegas, 4505 S. Maryland Parkway, Box 455003, Las Vegas, NV 89154-5003, United States of America.
| | - Alex A Straftis
- Department of Anthropology, University of Nevada, Las Vegas, 4505 S. Maryland Parkway, Box 455003, Las Vegas, NV 89154-5003, United States of America
| | - Brian M Bird
- Department of Psychology, Simon Fraser University, Canada
| | - Timothy S McHale
- Department of Anthropology, Central Washington University, United States of America
| | - Samuele Zilioli
- Department of Psychology, Wayne State University, United States of America; Department of Family Medicine and Public Health Sciences, Wayne State University, United States of America.
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12
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Corpuz R, Bugental D. Life history and individual differences in male testosterone: Mixed evidence for early environmental calibration of testosterone response to first-time fatherhood. Horm Behav 2020; 120:104684. [PMID: 31945323 DOI: 10.1016/j.yhbeh.2020.104684] [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] [Received: 08/01/2019] [Revised: 11/06/2019] [Accepted: 01/03/2020] [Indexed: 11/19/2022]
Abstract
Male testosterone (T) decreases in response to childbirth. Longitudinal support for this has come from samples across cultures. In this study, we look at individual differences in this phenomenon. Utilizing a sample of U.S. fathers, we employ life history theory to investigate the influence of a father's early experience on his neuroendocrine response to fatherhood. We conducted three home visits (n = 226 fathers) from the third trimester of pregnancy to when infants were 10 months old. In this sample, T declined from the third trimester of (a partner's) pregnancy to the early months of the postnatal period. T recovered to pre-birth levels by the time infants reached 10 months old. We did not find any evidence that one's subjective experience of their early environment could account for any meaningful variability in T calibration. Objective, "event" measures of early harshness (i.e., death of a sibling/friend) and unpredictability (i.e., parent upheaval) each uniquely predicted a younger age of sexual debut. Neither harshness nor unpredictability had any (direct or indirect) effects on T calibration. Age of sexual debut did predict the rate of T recovery from 3 to 10 months postnatal. The younger one's sexual debut, the more accelerated their T ascent during this period. We discuss the potential reasons for, and implications of our mixed results.
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Affiliation(s)
- Randy Corpuz
- Department of Psychology, University of Massachusetts Boston, United States of America.
| | - Daphne Bugental
- Department of Psychological and Brain Sciences, University of California, Santa Barbara, United States of America
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13
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Gettler LT, Sarma MS, Gengo RG, Oka RC, McKenna JJ. Testosterone moderates the effects of social support on cardiovascular disease risk factors among older US men. Am J Hum Biol 2019; 31:e23248. [PMID: 31045310 DOI: 10.1002/ajhb.23248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 02/05/2019] [Accepted: 04/09/2019] [Indexed: 11/08/2022] Open
Abstract
OBJECTIVES Social support positively affects health through pathways such as shaping intrapersonal emotional and psychological well-being. Lower testosterone often interrelates with psychological and behavioral orientations that are beneficial to participation in emotionally supportive relationships. Yet, little research has considered the ways in which testosterone may contribute to health outcomes related to emotional support. METHODS We draw on testosterone, social support data, and cardiovascular disease (CVD)-relevant indicators (inflammatory markers; blood pressure [BP]) from older men (n = 366) enrolled in the National Health and Nutrition Examination Survey, a US nationally representative study. We test whether men's testosterone moderates associations between emotional social support and markers related to CVD risk. RESULTS For men with relatively lower testosterone, higher levels of social support predicted lower white blood cell (WBC) counts, consistent with reduced inflammation. In contrast, men with higher testosterone exhibited elevated WBC counts with greater support. In a diverging pattern, men with lower testosterone had higher systolic and diastolic BP with higher support, whereas the slopes for systolic and diastolic BP, respectively, were comparatively flatter for men with higher levels of testosterone. CONCLUSIONS We suggest that our findings are theoretically consistent with the idea that testosterone helps shape intrapersonal and interpersonal experiences and perceptions of men's emotional support networks, thereby affecting the health implications of that support. The somewhat divergent results for WBC count vs BP highlight the need for inclusion of other neuroendocrine markers alongside testosterone as well as refined measures of perceived and received support.
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Affiliation(s)
- Lee T Gettler
- Department of Anthropology, University of Notre Dame, Notre Dame, Indiana.,Eck Institute for Global Health, University of Notre Dame, Notre Dame, Indiana.,William J. Shaw Center for Children and Families, University of Notre Dame, South Bend, Indiana
| | - Mallika S Sarma
- Department of Anthropology, University of Notre Dame, Notre Dame, Indiana
| | - Rieti G Gengo
- Department of Anthropology, University of Notre Dame, Notre Dame, Indiana.,Helen B. Kellogg Institute for International Studies, University of Notre Dame, Notre Dame, Indiana
| | - Rahul C Oka
- Department of Anthropology, University of Notre Dame, Notre Dame, Indiana.,Helen B. Kellogg Institute for International Studies, University of Notre Dame, Notre Dame, Indiana
| | - James J McKenna
- Department of Anthropology, University of Notre Dame, Notre Dame, Indiana
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14
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Gettler LT, Kuo PX, Rosenbaum S, Avila JL, McDade TW, Kuzawa CW. Sociosexuality, testosterone, and life history status: prospective associations and longitudinal changes among men in Cebu, Philippines. EVOL HUM BEHAV 2019. [DOI: 10.1016/j.evolhumbehav.2018.11.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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The Influence of Endogenous Opioids on the Relationship between Testosterone and Romantic Bonding. HUMAN NATURE-AN INTERDISCIPLINARY BIOSOCIAL PERSPECTIVE 2018; 30:98-116. [PMID: 30519832 DOI: 10.1007/s12110-018-9332-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The endogenous opioid system has received attention and extensive research for its effects on reward, pleasure, and pain. However, relative to other neurochemicals, such as oxytocin, vasopressin and dopamine, the function of opioids in regulating human attachment, sociosexuality, and other aspects of human sociality has not received much consideration. For example, nonapeptides (oxytocin and vasopressin) have been extensively studied in animals and humans for their possible roles in mother-offspring attachment, romantic attachment, fatherhood, and social cognition. Likewise, others have proposed models wherein oxytocin and vasopressin are moderators of the relationship between steroid hormones and human social behaviors. Recently, opioids have generated renewed interest in relation to social pain, and importantly, the brain opioid hypothesis of social attachment (BOTSA), which suggests that endogenous opioids are a key implementer in primate and human bonding, has received some support. Here we focus on romantic bonds by proposing that endogenous opioids are an important mechanism mediating reproductive trade-offs through their inhibitory effects on testosterone production.
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Rosenbaum S, Gettler LT, McDade TW, Bechayda SS, Kuzawa CW. Does a man's testosterone “rebound” as dependent children grow up, or when pairbonds end? A test in Cebu, Philippines. Am J Hum Biol 2018; 30:e23180. [DOI: 10.1002/ajhb.23180] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 06/25/2018] [Accepted: 08/07/2018] [Indexed: 12/18/2022] Open
Affiliation(s)
- Stacy Rosenbaum
- Department of Anthropology Northwestern University Evanston Illinois
| | - Lee T. Gettler
- Department of Anthropology University of Notre Dame Notre Dame Indiana
- Eck Institute for Global Health University of Notre Dame Notre Dame Indiana
| | - Thomas W. McDade
- Department of Anthropology Northwestern University Evanston Illinois
- Institute for Policy Research, Northwestern University Evanston Illinois
| | - Sonny S. Bechayda
- Office of Population Studies University of San Carlos Cebu Philippines
- Department of Anthropology, Sociology, and History University of San Carlos Cebu Philippines
| | - Christopher W. Kuzawa
- Department of Anthropology Northwestern University Evanston Illinois
- Institute for Policy Research, Northwestern University Evanston Illinois
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Gettler LT, Kuo PX, Bechayda SA. Fatherhood and psychobiology in the Philippines: Perspectives on joint profiles and longitudinal changes of fathers' estradiol and testosterone. Am J Hum Biol 2018; 30:e23150. [PMID: 30251281 DOI: 10.1002/ajhb.23150] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 04/19/2018] [Accepted: 05/29/2018] [Indexed: 02/03/2023] Open
Abstract
OBJECTIVES Research on the psychobiology of partnering and fathering has focused on testosterone (T), oxytocin, and prolactin (PRL) as mechanisms that potentially mediate life history trade-offs related to those roles. Less is known about other hormones that might be responsive to life history transitions and implicated in fathering, such as estradiol (E2). We examined how E2 changed during the transition to marriage and fatherhood, its correlation with fathers' caregiving, and its joint within-individual production with other hormones (T, PRL). METHODS Data were collected from a total of 913 Filipino men (aged 25.9 years ± 0.3 SD at follow-up) enrolled in a longitudinal cohort study. Morning saliva samples collected at baseline (2005) and follow-up (2009) were assayed for T and E2 (n = 329), dried blood spots from baseline were assayed for PRL. Fathers reported on caregiving in 2009. RESULTS When compared with men who remained single non-fathers over the study period, men who became married residential fathers experienced larger declines in E2. This effect was non-significant when we controlled for longitudinal changes in T. E2 was not significantly related to fathers' caregiving, controlling for T. In cross-sectional analyses for PRL, T, and E2, married residential fathers exhibited within-individual profiles of reduced T and elevated PRL, whereas single non-fathers exhibited the opposite profile of elevated T and reduced PRL. CONCLUSIONS Our findings point to the need for future research to consider the mutually regulatory dynamics and/or combinatorial implications of multiple physiological axes acting within individuals to underpin life history trade-offs and behavioral strategies.
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Affiliation(s)
- Lee T Gettler
- Department of Anthropology, University of Notre Dame, Notre Dame, Indiana.,The Eck Institute of Global Health, University of Notre Dame, Notre Dame, Indiana.,William J. Shaw Center for Children and Families, University of Notre Dame, South Bend, Indiana.,The Eck Institute of Global Health, University of Notre Dame, Notre Dame, Indiana
| | - Patty X Kuo
- Department of Anthropology, University of Notre Dame, Notre Dame, Indiana.,William J. Shaw Center for Children and Families, University of Notre Dame, South Bend, Indiana
| | - Sonny Agustin Bechayda
- USC Office of Population Studies Foundation, and Department of Anthropology, Sociology, and History, University of San Carlos, Cebu City, Philippines
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Holmboe SA, Skakkebæk NE, Juul A, Scheike T, Jensen TK, Linneberg A, Thuesen BH, Andersson AM. Individual testosterone decline and future mortality risk in men. Eur J Endocrinol 2018; 178:123-130. [PMID: 29066571 DOI: 10.1530/eje-17-0280] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Revised: 10/16/2017] [Accepted: 10/23/2017] [Indexed: 01/20/2023]
Abstract
OBJECTIVE Male aging is characterized by a decline in testosterone (TS) levels with a substantial variability between subjects. However, it is unclear whether differences in age-related changes in TS are associated with general health. We investigated associations between mortality and intra-individual changes in serum levels of total TS, SHBG, free TS and LH during a ten-year period with up to 18 years of registry follow-up. DESIGN 1167 men aged 30-60 years participating in the Danish Monitoring Trends and Determinants of Cardiovascular Disease (MONICA1) study and who had a follow-up examination ten years later (MONICA10) were included. From MONICA10, the men were followed up to 18 years (mean: 15.2 years) based on the information from national mortality registries via their unique personal ID numbers. METHODS Cox proportional hazard models were used to investigate the association between intra-individual hormone changes and all-cause, CVD and cancer mortalities. RESULTS A total of 421 men (36.1%) died during the follow-up period. Men with most pronounced decline in total TS (<10th percentile) had a higher all-cause mortality risk compared to men within the 10th to 90th percentile (hazard ratio (HR): 1.60; 95% confidence interval (CI): 1.08-2.36). No consistent associations were seen in cause-specific mortality analyses. CONCLUSION Our study showed that higher mortality rates were seen among the men who had the most pronounced age-related decline in TS, independent of their baseline TS levels.
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Affiliation(s)
- Stine A Holmboe
- Department of Growth and Reproduction
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC)Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Niels E Skakkebæk
- Department of Growth and Reproduction
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC)Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Anders Juul
- Department of Growth and Reproduction
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC)Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- Departments of Clinical MedicineFaculty of Health and Medical Sciences
| | - Thomas Scheike
- Departments of BiostatisticsUniversity of Copenhagen, Copenhagen, Denmark
| | - Tina K Jensen
- Department of Growth and Reproduction
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC)Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Allan Linneberg
- Departments of Clinical MedicineFaculty of Health and Medical Sciences
- Research Centre for Prevention and HealthThe Capital Region, Denmark
- Department of Clinical Experimental ResearchRigshospitalet, Copenhagen, Denmark
| | - Betina H Thuesen
- Research Centre for Prevention and HealthThe Capital Region, Denmark
| | - Anna-Maria Andersson
- Department of Growth and Reproduction
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC)Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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Lawson DW, Nuñez-de la Mora A, Cooper GD, Prentice AM, Moore SE, Sear R. Marital Status and Sleeping Arrangements Predict Salivary Testosterone Levels in Rural Gambian Men. ADAPTIVE HUMAN BEHAVIOR AND PHYSIOLOGY 2017. [DOI: 10.1007/s40750-017-0066-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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