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1

Newman, Matthew L., Jennifer Guinn Sellers, and Robert A. Josephs. "Testosterone, cognition, and social status." Hormones and Behavior 47, no. 2 (2005): 205–11. http://dx.doi.org/10.1016/j.yhbeh.2004.09.008.

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2

McIntyre, Matthew H., Amy Y. Li, Judith Flynn Chapman, Susan F. Lipson, and Peter T. Ellison. "Social status, masculinity, and testosterone in young men." Personality and Individual Differences 51, no. 4 (2011): 392–96. http://dx.doi.org/10.1016/j.paid.2010.03.015.

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3

Kirby, Roger. "Testosterone and the struggle for higher social status." Trends in Urology & Men's Health 5, no. 1 (2014): 11–14. http://dx.doi.org/10.1002/tre.372.

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4

Dreher, Jean-Claude, Simon Dunne, Agnieszka Pazderska, Thomas Frodl, John J. Nolan, and John P. O’Doherty. "Testosterone causes both prosocial and antisocial status-enhancing behaviors in human males." Proceedings of the National Academy of Sciences 113, no. 41 (2016): 11633–38. http://dx.doi.org/10.1073/pnas.1608085113.

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Although popular discussion of testosterone’s influence on males often centers on aggression and antisocial behavior, contemporary theorists have proposed that it instead enhances behaviors involved in obtaining and maintaining a high social status. Two central distinguishing but untested predictions of this theory are that testosterone selectively increases status-relevant aggressive behaviors, such as responses to provocation, but that it also promotes nonaggressive behaviors, such as generosity toward others, when they are appropriate for increasing status. Here, we tested these hypotheses
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5

Wu, Yin, Yinhua Zhang, Jianxin Ou, Yang Hu, and Samuele Zilioli. "Exogenous testosterone increases the audience effect in healthy males: evidence for the social status hypothesis." Proceedings of the Royal Society B: Biological Sciences 287, no. 1931 (2020): 20200976. http://dx.doi.org/10.1098/rspb.2020.0976.

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Several studies have implicated testosterone in the modulation of altruistic behaviours instrumental to advancing social status. Independent studies have also shown that people tend to behave more altruistically when being watched (i.e. audience effect). To date, little is known about whether testosterone could modulate the audience effect. In the current study, we tested the effect of testosterone on altruistic behaviour using a donation task, wherein participants were asked to either accept or reject a monetary transfer to a charity organization accompanying a personal cost either in the pr
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6

Losecaat Vermeer, A. B., I. Krol, C. Gausterer, B. Wagner, C. Eisenegger, and C. Lamm. "Exogenous testosterone increases status-seeking motivation in men with unstable low social status." Psychoneuroendocrinology 113 (March 2020): 104552. http://dx.doi.org/10.1016/j.psyneuen.2019.104552.

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7

Ravi, Meghna, Ellie Shuo Jin, Slaton Freeman, Leslie Karen Rice, and Robert Alan Josephs. "Subjective social economic status moderates stress-buffering effects of testosterone." Psychoneuroendocrinology 71 (September 2016): 53. http://dx.doi.org/10.1016/j.psyneuen.2016.07.139.

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8

TRUDEAU, V. L., and L. M. SANFORD. "INFLUENCE OF SEASON AND SOCIAL ENVIRONMENT ON THE REPRODUCTIVE-ENDOCRINE STATUS OF THE ADULT LANDRACE BOAR." Canadian Journal of Animal Science 70, no. 1 (1990): 121–28. http://dx.doi.org/10.4141/cjas90-013.

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Seasonal variations in LH, FSH, and testosterone secretion were investigated for adult Landrace boars housed in different social environments for 1 yr. Socially nonrestricted boars (n = 4) were penned adjacent to ovariectomized gilts that were hormonally brought into estrus every 2 wk, while socially restricted boars (n = 4) were kept in pens with solid walls. Mean hormone concentrations were determined from the assay of single AM and PM blood samples collected from the jugular vein by venipuncture once a month. In November, February, May and August, blood samples were collected serially over
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9

Pikus, Alyxandra E., Sarah Guindre-Parker, and Dustin R. Rubenstein. "Testosterone, social status and parental care in a cooperatively breeding bird." Hormones and Behavior 97 (January 2018): 85–93. http://dx.doi.org/10.1016/j.yhbeh.2017.10.008.

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10

Ryder, T. Brandt, Roslyn Dakin, Ben J. Vernasco, Brian S. Evans, Brent M. Horton, and Ignacio T. Moore. "Testosterone Modulates Status-Specific Patterns of Cooperation in a Social Network." American Naturalist 195, no. 1 (2020): 82–94. http://dx.doi.org/10.1086/706236.

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11

Knight, Erik L., and Pranjal H. Mehta. "Hierarchy stability moderates the effect of status on stress and performance in humans." Proceedings of the National Academy of Sciences 114, no. 1 (2016): 78–83. http://dx.doi.org/10.1073/pnas.1609811114.

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High social status reduces stress responses in numerous species, but the stress-buffering effect of status may dissipate or even reverse during times of hierarchical instability. In an experimental test of this hypothesis, 118 participants (57.3% female) were randomly assigned to a high- or low-status position in a stable or unstable hierarchy and were then exposed to a social-evaluative stressor (a mock job interview). High status in a stable hierarchy buffered stress responses and improved interview performance, but high status in an unstable hierarchy boosted stress responses and did not le
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12

Oliveira, Rui F. "Of fish and men: A comparative approach to androgens and social dominance." Behavioral and Brain Sciences 21, no. 3 (1998): 383–84. http://dx.doi.org/10.1017/s0140525x9847122x.

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Four aspects of Mazur & Booth's target article are discussed from a comparative perspective using teleost fish as a reference: (a) the relationship between aggression, dominance, and androgens; (b) the interpretation of the data in light of the challenge hypothesis; (c) the potential role of testosterone as a physiological mediator between social status and the expression of male characters; and (d) the fact that metabolic conversions of testosterone may be important in its effect on aggression/ dominance.
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13

Parikh, Victoria N., Tricia Clement, and Russell D. Fernald. "Physiological consequences of social descent: studies in Astatotilapia burtoni." Journal of Endocrinology 190, no. 1 (2006): 183–90. http://dx.doi.org/10.1677/joe.1.06755.

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In many species, social interactions regulate reproductive capacity, although the exact mechanisms of such regulation are unclear. Since social stress is often related to reproductive regulation, we measured the physiological signatures of change in reproductive state as they relate to short-term stress and the stress hormone cortisol. We used an African cichlid fish, Astatotilapia burtoni, with two distinct, reversible male phenotypes: dominant (territorial, T) males that are larger, more brightly colored, more aggressive, and reproductively competent and non-dominant males (non-territorial,
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14

Chichinadze, K., and N. Chichinadze. "Stress-induced increase of testosterone: Contributions of social status and sympathetic reactivity." Physiology & Behavior 94, no. 4 (2008): 595–603. http://dx.doi.org/10.1016/j.physbeh.2008.03.020.

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15

Foss, Jeffrey. "Testosterone and the second sex." Behavioral and Brain Sciences 21, no. 3 (1998): 374–75. http://dx.doi.org/10.1017/s0140525x98371228.

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Because the reciprocal theory of Mazur & Booth dominates the static basal model, given the evidence they present, it is worth considering the implications for women's equality, supposing it true. Testosterone might well give males a competitive edge, and hence higher status, creating an inequality that mere social legislation would be ill-suited to address. Further research on the role of testosterone is needed.
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16

Jaeggi, Adrian V., Benjamin C. Trumble, Hillard S. Kaplan, and Michael Gurven. "Salivary oxytocin increases concurrently with testosterone and time away from home among returning Tsimane’ hunters." Biology Letters 11, no. 3 (2015): 20150058. http://dx.doi.org/10.1098/rsbl.2015.0058.

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Oxytocin, testosterone and cortisol can have opposing effects on social behaviour, yet few studies have examined their interactions. We measured changes in salivary oxytocin, testosterone and cortisol among Tsimane’ men returning home after hunting, an ancient context of male status competition, parental investment and cooperation. Contra normal diurnal rhythm, oxytocin increased relative to baseline and this increase was positively associated with duration of the hunt and change in testosterone, but not cortisol, social context, hunting outcome or physical activity. The concurrent increase in
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17

Cardoos, Stephanie L., Ahna Ballonoff Suleiman, Megan Johnson, Wouter van den Bos, Stephen P. Hinshaw, and Ronald E. Dahl. "Social status strategy in early adolescent girls: Testosterone and value-based decision making." Psychoneuroendocrinology 81 (July 2017): 14–21. http://dx.doi.org/10.1016/j.psyneuen.2017.03.013.

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18

Poisbleau, Maud, Herve Fritz, Matthieu Guillemain, and Andre Lacroix. "Testosterone and Linear Social Dominance Status in Captive Male Dabbling Ducks in Winter." Ethology 111, no. 5 (2005): 493–509. http://dx.doi.org/10.1111/j.1439-0310.2005.01092.x.

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19

Ryder, Thomas B., Brent M. Horton, and Ignacio T. Moore. "Understanding testosterone variation in a tropical lek-breeding bird." Biology Letters 7, no. 4 (2011): 506–9. http://dx.doi.org/10.1098/rsbl.2010.1219.

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Male reproductive coalitions, in which males cooperate to attract females, are a rare strategy among vertebrates. While some studies have investigated ultimate aspects of these relationships, little is known about the mechanistic role that hormones play in modulating cooperative behaviours. Here, we examined male testosterone variation in a tropical lekking bird, the wire-tailed manakin ( Pipra filicauda ), which exhibits cooperative male–male display coalitions. We found that testosterone levels in territorial males were comparable to those of temperate breeding birds, a surprising result giv
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20

Sachser, Norbert, and Ekkehard Pröve. "Social Status and Plasma-Testosterone-Titers in Male Guinea Pigs (Cavia aperes f. porcellus)." Ethology 71, no. 2 (2010): 103–14. http://dx.doi.org/10.1111/j.1439-0310.1986.tb00576.x.

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21

Negro, Sandra S., Abigail K. Caudron, Michel Dubois, Philippe Delahaut, and Neil J. Gemmell. "Correlation between Male Social Status, Testosterone Levels, and Parasitism in a Dimorphic Polygynous Mammal." PLoS ONE 5, no. 9 (2010): e12507. http://dx.doi.org/10.1371/journal.pone.0012507.

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22

EDWARDS, D., K. WETZEL, and D. WYNER. "Intercollegiate soccer: Saliva cortisol and testosterone are elevated during competition, and testosterone is related to status and social connectedness with teammates." Physiology & Behavior 87, no. 1 (2006): 135–43. http://dx.doi.org/10.1016/j.physbeh.2005.09.007.

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23

Smyth, Kendra N., Nicholas M. Caruso, Charli S. Davies, Tim H. Clutton-Brock, and Christine M. Drea. "Social and endocrine correlates of immune function in meerkats: implications for the immunocompetence handicap hypothesis." Royal Society Open Science 5, no. 8 (2018): 180435. http://dx.doi.org/10.1098/rsos.180435.

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Social status can mediate effects on the immune system, with profound consequences for individual health; nevertheless, most investigators of status-related disparities in free-ranging animals have used faecal parasite burdens to proxy immune function in the males of male-dominant species. We instead use direct measures of innate immune function (complement and natural antibodies) to examine status-related immunocompetence in both sexes of a female-dominant species. The meerkat is a unique model for such a study because it is a cooperatively breeding species in which status-related differences
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24

Karataeva, O. V., E. I. Panova, N. V. Zhdankina, and E. P. Morozova. "Quality of life in young men with abdominal obesity depending on androgen deficiency." Perm Medical Journal 35, no. 6 (2018): 49–52. http://dx.doi.org/10.17816/pmj35649-52.

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Aim. To reveal the changes in the quality of life among young men with visceral obesity depending on androgen deficiency manifestation.
 Materials and methods. Examination of 80 men with the mean age of 45.5 ± 7.7 years with abdominal type of obesity was carried out. The total blood serum testosterone level was determined in all patients and their life quality was assessed using SF-36 health survey.
 Results. In the examined group, 72.3 % of patients had statistically significant (p = 0.03) testosterone deficiency, and their life quality indices were characterized by lower scores of
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25

Losecaat Vermeer, A. B., I. Krol, C. Gausterer, B. Wagner, C. Eisenegger, and C. Lamm. "Corrigendum to “Exogenous testosterone increases status-seeking motivation in men with unstable low social status” “[Psychoneuroendocrinology 113 (2020) 104552]”." Psychoneuroendocrinology 113 (March 2020): 104586. http://dx.doi.org/10.1016/j.psyneuen.2020.104586.

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26

Liley, N. R., and F. J. Kroon. "Male dominance, plasma hormone concentrations, and availability of milt in male rainbow trout (Oncorhynchus mykiss)." Canadian Journal of Zoology 73, no. 5 (1995): 826–36. http://dx.doi.org/10.1139/z95-097.

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The relationships among social status, endocrine profile, and amounts of milt available by stripping were examined in pairs of male rainbow trout (Oncorhynchus mykiss) competing for access to sexually active females in laboratory spawning channels. Gonadotropic hormone (GtH II), the gonadal steroids 11-ketotestosterone, testosterone, and 17α,20β-dihydroxy-4-pregnen-3-one, and milt volumes increased in dominant males in response to stimuli provided by a nesting female. Subordinate males in the same location did not show endocrine or milt responses. Following the removal of the dominant male of
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27

Wu, Yin. "Exogenous testosterone increases the audience effect in healthy males: Evidence for the social status hypothesis." Psychoneuroendocrinology 119 (September 2020): 105029. http://dx.doi.org/10.1016/j.psyneuen.2020.105029.

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28

Terburg, David, and Jack van Honk. "Approach–Avoidance versus Dominance–Submissiveness: A Multilevel Neural Framework on How Testosterone Promotes Social Status." Emotion Review 5, no. 3 (2013): 296–302. http://dx.doi.org/10.1177/1754073913477510.

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29

Fisk, Susan Rebecca, Brennan J. Miller, and Jon Overton. "Why social status matters for understanding the interrelationships between testosterone, economic risk-taking, and gender." Sociology Compass 11, no. 3 (2017): e12452. http://dx.doi.org/10.1111/soc4.12452.

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30

Martin, J. S., N. Staes, A. Weiss, J. M. G. Stevens, and A. V. Jaeggi. "Facial width-to-height ratio is associated with agonistic and affiliative dominance in bonobos ( Pan paniscus )." Biology Letters 15, no. 8 (2019): 20190232. http://dx.doi.org/10.1098/rsbl.2019.0232.

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Facial width-to-height ratio (fWHR) is associated with social dominance in human and non-human primates, which may reflect the effects of testosterone on facial morphology and behaviour. Given that testosterone facilitates status-seeking motivation, the association between fWHR and behaviour should be contingent on the relative costs and benefits of particular dominance strategies across species and socioecological contexts. We tested this hypothesis in bonobos ( Pan paniscus ), who exhibit female dominance and rely on both affiliation and aggression to achieve status. We measured fWHR from fa
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31

Maestripieri, Dario, Amanda Klimczuk, Daniel Traficonte, and M. Claire Wilson. "Ethnicity-related variation in sexual promiscuity, relationship status, and testosterone levels in men." Evolutionary Behavioral Sciences 8, no. 2 (2014): 96–108. http://dx.doi.org/10.1037/h0099130.

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32

Mendoza, Guillermo, Manuel Jiménez, Jerónimo García-Romero, et al. "Challenging the Top Player: A Preliminary Study on Testosterone Response to An Official Chess Tournament." International Journal of Environmental Research and Public Health 17, no. 4 (2020): 1204. http://dx.doi.org/10.3390/ijerph17041204.

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According to the Challenge Hypothesis, high levels of testosterone (T) are associated with status-seeking behaviors, especially in competitive situations. However, there have not been many studies about rivals’ social status and pre-competition neuroendocrine responses. The aim of this study was to analyze whether the participants in a chess tournament showed different pre-match testosterone and cortisol levels depending on differences in ELO (i.e., the International Chess Federation rating to rank the competitive potential and social status between players). The sample was six male participan
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33

Alward, Beau A., Vibhav A. Laud, Christopher J. Skalnik, Ryan A. York, Scott A. Juntti, and Russell D. Fernald. "Modular genetic control of social status in a cichlid fish." Proceedings of the National Academy of Sciences 117, no. 45 (2020): 28167–74. http://dx.doi.org/10.1073/pnas.2008925117.

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Social hierarchies are ubiquitous in social species and profoundly influence physiology and behavior. Androgens like testosterone have been strongly linked to social status, yet the molecular mechanisms regulating social status are not known. The African cichlid fishAstatotilapia burtoniis a powerful model species for elucidating the role of androgens in social status given their rich social hierarchy and genetic tractability. DominantA. burtonimales possess large testes and bright coloration and perform aggressive and reproductive behaviors while nondominant males do not. Social status inA. b
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34

van Kesteren, Freya, Claudio Sillero-Zubiri, Robert Millar, Kifle Argaw, David W. Macdonald, and Monique Paris. "Sex, stress and social status: Patterns in fecal testosterone and glucocorticoid metabolites in male Ethiopian wolves." General and Comparative Endocrinology 179, no. 1 (2012): 30–37. http://dx.doi.org/10.1016/j.ygcen.2012.07.016.

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35

Casto, Kathleen V., David K. Hamilton, and David A. Edwards. "Testosterone and Cortisol Interact to Predict Within-Team Social Status Hierarchy among Olympic-Level Women Athletes." Adaptive Human Behavior and Physiology 5, no. 3 (2019): 237–50. http://dx.doi.org/10.1007/s40750-019-00115-2.

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36

Mueller, Ulrich. "Aggressiveness and dominance." Behavioral and Brain Sciences 21, no. 3 (1998): 381–82. http://dx.doi.org/10.1017/s0140525x98451227.

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Aggressiveness is a vital component of dominating behavior. We must distinguish adaptive from nonadaptive aggression and must control for skills, intelligence, appropriate context variables, and – most important – whether the aggression displayed was actually suitable for improving a subject's social status. If we do, we may find a consistent positive correlation between adaptive aggressiveness and testosterone.
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37

Sherman, Gary D., Jennifer S. Lerner, Robert A. Josephs, Jonathan Renshon, and James J. Gross. "The interaction of testosterone and cortisol is associated with attained status in male executives." Journal of Personality and Social Psychology 110, no. 6 (2016): 921–29. http://dx.doi.org/10.1037/pspp0000063.

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38

Akinola, Modupe, Elizabeth Page-Gould, Pranjal H. Mehta, and Jackson G. Lu. "Collective hormonal profiles predict group performance." Proceedings of the National Academy of Sciences 113, no. 35 (2016): 9774–79. http://dx.doi.org/10.1073/pnas.1603443113.

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Prior research has shown that an individual’s hormonal profile can influence the individual’s social standing within a group. We introduce a different construct—a collective hormonal profile—which describes a group’s hormonal make-up. We test whether a group’s collective hormonal profile is related to its performance. Analysis of 370 individuals randomly assigned to work in 74 groups of three to six individuals revealed that group-level concentrations of testosterone and cortisol interact to predict a group’s standing across groups. Groups with a collective hormonal profile characterized by hi
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39

Assari, Shervin, Shanika Boyce, Mohsen Bazargan, and Cleopatra H. Caldwell. "Race, Socioeconomic Status, and Sex Hormones among Male and Female American Adolescents." Reproductive Medicine 1, no. 2 (2020): 108–21. http://dx.doi.org/10.3390/reprodmed1020008.

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Although early sexual initiation and childbearing are major barriers against the upward social mobility of American adolescents, particularly those who belong to a low socioeconomic status (SES) and racial minorities such as Blacks, less is known on how SES and race correlate with adolescents’ sex hormones. An understanding of the associations between race and SES with adolescents’ sex hormones may help better understand why racial, and SES gaps exist in sexual risk behaviors and teen pregnancies. To extend the existing knowledge on social patterning of adolescents’ sex hormones, in the curren
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40

Burgess, Elizabeth A., Janet M. Lanyon, and Tamara Keeley. "Testosterone and tusks: maturation and seasonal reproductive patterns of live, free-ranging male dugongs (Dugong dugon) in a subtropical population." REPRODUCTION 143, no. 5 (2012): 683–97. http://dx.doi.org/10.1530/rep-11-0434.

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Knowledge of male reproductive status and activity in free-ranging animals is vital to understanding reproductive patterns and population dynamics. Until now, almost all information regarding reproductive behavior of the dugong, a cryptic marine mammal, has relied on post-mortem examination. We examined the relationships between body length, tusk eruption (secondary sexual characteristic), seasonality, and group association on fecal testosterone metabolite concentrations in 322 free-ranging dugongs (159 males, 163 females) in subtropical Moreton Bay, Australia. Fecal testosterone concentration
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41

SACHSER, N. "Short-term responses of plasma norepinephrine, epinephrine, glucocorticoid and testosterone titers to social and non-social stressors in male guinea pigs of different social status." Physiology & Behavior 39, no. 1 (1987): 11–20. http://dx.doi.org/10.1016/0031-9384(87)90338-6.

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42

Chao, Jian-Kang, Mi-Chia Ma, Yen-Chin Lin, Han-Sun Chiang, and Thomas I.-Sheng Hwang. "Study on Alcohol Dependence and Factors Related to Erectile Dysfunction Among Aborigines in Taiwan." American Journal of Men's Health 9, no. 3 (2014): 247–56. http://dx.doi.org/10.1177/1557988314543657.

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Relatively few studies have addressed the risk factors of erectile dysfunction (ED) in Taiwanese— most have described ED and medical problems in the general population. In this study, the cardiovascular risk factors of ED among aborigines in Taiwan were investigated. However, alcohol dependence (AD) was prevalent in Taiwan’s aborigine population. So this study also focused on the relationship among AD, the cardiovascular risk factors and ED. A cross-sectional study was conducted, and data was obtained from a baseline survey of 192 aboriginal adults (35-75 years of age). The participants’ demog
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43

Taniguchi, Hisanori, and Tadashi Matsuda. "Multi-Institutional Survey of Medical Treatment for Late-Onset Hypogonadism in Japan." American Journal of Men's Health 11, no. 2 (2016): 376–79. http://dx.doi.org/10.1177/1557988316681668.

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The adequate criteria for late-onset hypogonadism (LOH) diagnosis, including serum testosterone levels, type (total or free testosterone) and duration of androgen replacement therapy, and evaluations of treatment effectiveness remain controversial. To evaluate the current status of medical treatment for LOH in Japan, the first nationwide survey were performed. A total of 35 questionnaires answered by urologists in high-volume facilities were analyzed. The median numbers of patients with hypogonadism-related symptoms per month were 10. Aging Male Symptom Score, International Index of Erectile F
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44

Philpott, Delbert E., W. Sapp, C. Williams, T. Fast, J. Stevenson, and S. Black. "Reduction of spermatogonia and testosterone in rat testes flown on space lab-3." Proceedings, annual meeting, Electron Microscopy Society of America 44 (August 1986): 248–49. http://dx.doi.org/10.1017/s0424820100142864.

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Space Lab 3 (SL-3) was flown on Shuttle Challenger providing an opportunity to measure the effect of spaceflight on rat testes. Cannon developed the idea that organisms react to unfavorable conditions with highly integrated metabolic activities. Selye summarized the manifestations of physiological response to nonspecific stress and he pointed out that atrophy of the gonads always occurred. Many papers have been published showing the effects of social interaction, crowding, peck order and confinement. Flickinger showed delayed testicular development in subordinate roosters influenced by group n
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45

Martin, Luci A., and Mariam Ter-Petrosyan. "Positive Affect Moderates the Relationship Between Salivary Testosterone and a Health Behavior Composite in University Females." International Journal of Behavioral Medicine 27, no. 3 (2019): 305–15. http://dx.doi.org/10.1007/s12529-019-09824-0.

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Abstract Background Testosterone is released in both men and women and plays an important role in social functioning and motivation. Greater testosterone in women has been associated with negative physical health outcomes, while lower testosterone has been associated with psychological disorders. The following cross-sectional study examined the contribution of salivary testosterone, positive and negative affect, and demographic variables in predicting a composite health behavior score (cigarette use, hours of sleep, fruit/vegetable intake, following an exercise routine). Method The sample (mea
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Annah, Itma, and Harlyanti Muthma’innah Mashar. "STATUS PERNIKAHAN DAN DUKUNGAN SOSIAL SUAMI TERHADAP KUALITAS HIDUP WANITA MENOPAUSE DI KOTA PALANGKA RAYA." Jurnal Surya Muda 2, no. 1 (2020): 9–17. http://dx.doi.org/10.38102/jsm.v2i1.56.

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 Menopause is a period of permanent cessation of the menstrual cycle, causing decreased production of the hormones estrogen, progesterone and testosterone. Some of the symptoms of menopause are hot flashes, night sweats, and vaginal atrophy resulting in vaginal dryness associated with changes in sex hormone levels resulting in decreased quality of life for menopausal women. The purpose of this study is to look at the relationship between marital status and husband's social support to the quality of life of menopausal women in Palangka Raya City. The instrument used to assess the quality
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Greiner, Sabine, Martin Dehnhard, and Christian C. Voigt. "Differences in plasma testosterone levels related to social status are more pronounced during mating than nonmating season in the tropical bat Saccopteryx bilineata (greater sac-winged bat)." Canadian Journal of Zoology 89, no. 12 (2011): 1157–63. http://dx.doi.org/10.1139/z11-092.

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Testosterone (T) concentrations often covary strongly with mating activities in temperate-zone vertebrates. Recent studies suggest that males of tropical species experience lower and year-round constant T levels. Here we studied plasma T concentrations in a tropical mammal with a seasonally invariant social system, the greater sac-winged bat ( Saccopteryx bilineata (Temminck, 1838)). Colony composition remains almost stable throughout the year, although mating is restricted to only a few weeks each year. Males follow one of two mating strategies: they either defend a territory with a female gr
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48

Kordsmeyer, Tobias L., Daniel Freund, Mark van Vugt, and Lars Penke. "Honest Signals of Status: Facial and Bodily Dominance Are Related to Success in Physical but Not Nonphysical Competition." Evolutionary Psychology 17, no. 3 (2019): 147470491986316. http://dx.doi.org/10.1177/1474704919863164.

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Recent studies suggest that both facial and bodily dominance promote high status positions and predict status-seeking behaviors such as aggression and social dominance. An evolutionarily relevant context in which associations between these dominance signals and status outcomes may be prevalent are face-to-face status contests. The present study examined whether facial and bodily dominance predicted success in dyadic competitions (one physical discipline, arm wrestling, and three nonphysical disciplines) in men ( N = 125) in a controlled laboratory setting. Men’s bodies and faces were independe
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Jiménez, Manuel, José Ramón Alvero-Cruz, Juan Solla, et al. "Competition Seriousness and Competition Level Modulate Testosterone and Cortisol Responses in Soccer Players." International Journal of Environmental Research and Public Health 17, no. 1 (2020): 350. http://dx.doi.org/10.3390/ijerph17010350.

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This study aimed to analyze the modulating effect of competition seriousness and competition level in the testosterone and cortisol responses in professional soccer player. Ninety five (95) soccer players were included in this study (professional, n = 39; semiprofessional, n = 27; amateur, n = 29) before and after training, friendly game and official games. Repeated measures ANOVA showed higher testosterone levels (F(1,89) = 134, p < 0.0001, η2p = 0.75) in professional soccer players, when compared with semiprofessional (p < 0.0001) or amateur athletes (p < 0.0001). After winning a co
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Turan, Bulent, Jennifer L. Tackett, Maria T. Lechtreck, and Wesley R. Browning. "Coordination of the cortisol and testosterone responses: A dual axis approach to understanding the response to social status threats." Psychoneuroendocrinology 62 (December 2015): 59–68. http://dx.doi.org/10.1016/j.psyneuen.2015.07.166.

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