Social support and oxytocin interact to suppress cortisol and subjective responses to psychosocial stress (original) (raw)
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Relations between plasma oxytocin and cortisol: The stress buffering role of social support
Neurobiology of Stress, 2016
Stress responses in humans can be attenuated by exogenous oxytocin administration, and these stressbuffering properties may be moderated by social factors. Yet, the influence of acute stressors on circulating endogenous oxytocin levels have been inconsistent, and limited information is available concerning the influence of social support in moderating this relationship. In the current investigation, undergraduate women (N ΒΌ 67) were assessed in the Trier Social Stress Test (TSST) with either social support available from a close female friend or no social support being available. An additional set of women served as controls. The TSST elicited marked elevations of state anxiety and negative emotions, which were largely attenuated among women who received social support. Furthermore, baseline oxytocin levels were inversely related to women's general feelings of distrust, as well as basal plasma cortisol levels. Despite these associations, oxytocin levels were unaffected by the TSST, and this was the case irrespective of oral contraceptive use or estrogen levels. In contrast, plasma cortisol elevations were elicited by the psychosocial stressor, but only in women using oral contraceptives, an effect that was prevented when social support was available. Taken together, these data provisionally suggest that changes in plasma oxytocin might not accompany the stress attenuating effects of social support on cortisol levels. Moreover, as plasma oxytocin might not reliably reflect brain oxytocin levels, the linkage between oxytocin and prosocial behaviors remains tenuous.
Salubrious effects of oxytocin on social stress-induced deficits
Hormones and Behavior, 2012
Social relationships are a fundamental aspect of life, affecting social, psychological, physiological, and behavioral functions. While social interactions can attenuate stress and promote health, disruption, confrontations, isolation, or neglect in the social environment can each be major stressors. Social stress can impair the basal function and stress-induced activation of the hypothalamic-pituitary-adrenal (HPA) axis, impairing function of multiple biological systems and posing a risk to mental and physical health. In contrast, social support can ameliorate stressinduced physiological and immunological deficits, reducing the risk of subsequent psychological distress and improving an individual's overall well-being. For better clinical treatment of these physiological and mental pathologies, it is necessary to understand the regulatory mechanisms of stress-induced pathologies as well as determine the underlying biological mechanisms that regulate social buffering of the stress system. A number of ethologically relevant animal models of social stress and species that form strong adult social bonds have been utilized to study the etiology, treatment, and prevention of stress-related disorders. While undoubtedly a number of biological pathways contribute to the social buffering of the stress response, the convergence of evidence denotes the regulatory effects of oxytocin in facilitating social bond-promoting behaviors and their effect on the stress response. Thus, oxytocin may be perceived as a common regulatory element of the social environment, stress response, and stress-induced risks on mental and physical health.
A heartfelt response: Oxytocin and social stress.
Background: Animal research indicates that oxytocin is involved in social behavior, stress regulation, and positive physiologic adaptation. This study examines whether oxytocin enhances adaptive responses to social stress and compares effects between men and women.
A heartfelt response: Oxytocin effects on response to social stress in men and women
Biological psychology, 2012
BACKGROUND: Animal research indicates that oxytocin is involved in social behavior, stress regulation, and positive physiologic adaptation. This study examines whether oxytocin enhances adaptive responses to social stress and compares effects between men and women. METHODS: Hypotheses were tested with a placebo-controlled, double-blind experiment. Social stress was induced. Changes in cardiovascular reactivity, affect, and behavior were assessed. RESULTS: Participants given oxytocin, relative to placebo, ...
Proceedings of the National Academy of Sciences, 2011
The neuropeptide oxytocin has played an essential role in the regulation of social behavior and attachment throughout mammalian evolution. Because recent studies in humans have shown that oxytocin administration reduces stress responses and increases prosocial behavior, we investigated whether a common single nucleotide polymorphism (rs53576) in the oxytocin receptor gene (OXTR) might interact with stress-protective effects of social support. Salivary cortisol samples and subjective stress ratings were obtained from 194 healthy male participants before, during, and after a standardized psychosocial laboratory stress procedure. Participants were randomly assigned either to prepare alone or to receive social support from their female partner or close female friend while preparing for the stressful task. Differential stress responses between the genotype groups were observed depending on the presence or absence of social support. Only individuals with one or two copies of the G allele of rs53576 showed lower cortisol responses to stress after social support, compared with individuals with the same genotype receiving no social support. These results indicate that genetic variation of the oxytocin system modulates the effectiveness of positive social interaction as a protective buffer against a stressful experience.
Anxiety, Stress, & Coping, 2017
Background: Social support can serve as a protective factor against the negative impacts of stressors and may thereby promote well-being. As well, exogenous administration of oxytocin has been tied to diminished stress responses and might also enhance the effects of social support. Methods/Results: In the current study, conducted among female undergraduate students (N = 67), higher depressive symptoms were related to lower endorsements of problem-focused coping in response to a psychosocial stressor comprising the Trier Social Stress test (TSST). However, the relation between depressive symptoms and problemfocused coping was absent among participants who had a close female friend present serving as social support prior to the stressor experience. Additionally, endogenous plasma oxytocin levels were related to certain coping strategies being favored (e.g., problem-solving, humor, cognitive distraction, self-blame and support seeking) in response to the psychosocial stressor. However, the strength of these relations varied as a function of whether individuals had social support present or not. Conclusion: These findings confirm the positive impact of social support in attenuating the relation between depressive symptoms and specific coping methods. The results of this study are consistent with view that oxytocin levels are accompanied by particular stress responses, possibly through the promotion of coping methods endorsed.
Psychoneuroendocrinology, 2019
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