Relationships between perceived stress, coping behavior and cortisol secretion in women with high and low levels of internalized racism

AIM: It is hypothesized that a chronic defeat response to social or environmental stressors increases the likelihood of dysfunction of the hypothalamic-pituitary-adrenal (HPA) axis with dysregulation of cortisol, accumulation of abdominal fat and development of glucose intolerance. Recent studies show that African-Caribbean women who have a high level of internalized racism (INR) are at increased risk for abdominal obesity and glucose intolerance. The aim of the current study was to determine if African-Caribbean women with high and low INR differ in their levels of perceived stress and defeat coping style, and in the relationship of these factors to cortisol secretion. METHODS: On the island of Dominica, information on perceived stress and coping style was collected from age- and body mass index-matched samples of nondiabetic women aged 25-60 with high (n = 27) and low (n = 26) INR. Cortisol levels for each participant were determined from saliva specimens collected at 8:30 am and 10:30 pm. RESULTS: A higher mean perceived stress score (PSS) and greater tendency to use "restraint," "denial" and "behavioral disengagement" (defeated) coping (BDC) styles were found among women with high INR compared to those with low INR. In the combined sample, PSS and BDC were significantly correlated with an indicator of dysregulation of cortisol. However, in group-specific analyses, adjusting for age and education, these correlations remained significant only among women with high INR. CONCLUSION: These findings support the view that high perceived stress and defeated coping style may be factors that link high INR to dysregulation of cortisol and, perhaps, also to greater risk of metabolic abnormalities.     

Association between perceived social support and Th1 dominance

Social support is supposed to have a positive health effect via alteration of immunity. In this study, associations between perceived social support and immune systems were examined. Immunological assessments, e.g. T cell count, Natural Killer cell count, Interferon-gamma, Interleukin-4, and psychological assessments, e.g. Generic Job Stress Questionnaire were conducted on male employees. Two-way (social support x job stressor) analyses of covariance controlling for age, smoking, alcohol consumption, and exercise revealed that there were main effects of perceived social support on NK cell counts, IL-4, and Th1/Th2 balance. On the other hand, interaction effects were observed on T cell counts and INF-gamma production in vitro. Social support affects immune function in a way that is consistent with both the direct and buffering hypotheses depending on the sources of support and the immune parameter.     

Association between chocolate consumption frequency and heart rate variability indices

BackgroundPrevious studies have shown favorable effects of chocolate products on the cardiovascular system and reported an inverse relationship between chocolate consumption and adverse cardiac events; however, relationships between chocolate eating habits and heart rate variability have not yet been studied. The purpose of the present research was to determine the relationship, if any, between chocolate consumption frequency and heart rate variability.MethodsA cross-sectional study was carried out in a group of 98 young females (19–21 years old). The study included the evaluation of chocolate eating habits by a questionnaire and heart rate variability parameters by Finometer and Powerlab as primary outcomes along with measuring anthropometry, blood pressure and fasting blood sugar levels as predictors to account for potential confounding.ResultsThree chocolate eating patterns were distinguished: “No regular chocolate consumption (n:42), 2–4 servings/week (n:20), 5 or more servings/week (n:36)”. An ANOVA test revealed insignificant differences (p > 0.05) in heart rate variability parameters (time domain: Heart rate, RRms, SDNN, RMSSD; frequency domain: LF, HF, LF/HF) and pressures (systolic, diastolic, pulse, mean arterial) among three groups of individuals having different chocolate eating habits. Relative frequency of chocolate intake did not correlate with any of the cardiovascular, time-domain or frequency-domain parameters of heart rate variability in study participants.ConclusionBased on our results, we conclude that relative frequency of chocolate eating may not affect autonomic regulation of the heart in young females. Also, it may have no correlation with any of the cardiovascular, time-domain or frequency-domain parameters of heart rate variability.     

Shifting mediates gendered racial microaggressions and perceived racism among Asian American women

Introduction

Microaggressive attacks on Asian American women increased during the COVID-19 pandemic. The present study tested whether Asian American women's shifting, a coping strategy employed by some women of color to alter their self-presentation in response to perceived racism, mediated the association between gendered racial microaggressions and self-perceived subtle and blatant racism.

Methods

A convenience sample of 253 Asian American adult women completed the gendered racial microaggressions scale for Asian American women (GRMSAAW), the Asian American women's shifting scale (AsAWSS), and the subtle and blatant racism scale for Asian American college students (SABR-A²).

Results

Results from a structural equation model indicated a partial mediation effect; experiences with increased gendered racial microaggressions were associated with greater levels of shifting, which in turn, were associated with greater perceived subtle and blatant racism.

Discussion

These data extend our understanding of the shifting coping mechanism used by some Asian American women. Implications for clinical practice and future research are also discussed.     

Effects of perceived racism, cultural mistrust and trust in providers on satisfaction with care

Discriminatory treatment of African Americans in healthcare is well recognized, yet the literature is unclear on the specific role that perceived racism and mistrust play in the patient-provider relationship. The purpose of this study was to test a mid-range theoretical model entitled Perceptions of Racism and Mistrust in Health Care (PRMHC). This model hypothesized that perceived racism influences cultural mistrust, which affects trust in providers--and these combined psychosocial aspects of healthcare affect satisfaction with the care received. One-hundred-forty-five African-American subjects participated in structured interviews to collect demographic and psychosocial data. Provider data was obtained through chart audits. In a group of low-income African Americans in two primary care clinics, perceptions of racism and mistrust of whites had a significant negative effect on trust and satisfaction. Perceived racism had both a significant, inverse direct effect on satisfaction as well as a significant indirect effect on satisfaction mediated by cultural mistrust and trust in provider. Structural equation modeling analysis supported the hypothesized theoretical relationships and explained 27% of the variance in satisfaction with care. The findings add to the existing literature by enhancing our understanding of the complex perspectives on trust and overall satisfaction with care among African-American patients. Results suggest that improving health outcomes for African Americans requires a broader understanding of cultural competence, one that addresses societal racism and its impact on provider-patient relationships.     

Association between sleep bruxism and stress sensitivity in an experimental psychological stress task

The objective of this study was to examine the association between sleep bruxism and psychological stress. The subjects consisted of 76 volunteers, who were divided into those with and without bruxism according to the diagnostic criteria for sleep bruxism outlined by the American Academy of Sleep Medicine (AASM). Stress sensitivity was evaluated before and after an experimental stress task, which involved simple mathematical calculations. It was assessed objectively by measuring the subjects' salivary chromogranin A (CgA) levels and subjectively using a ten-division visual analog scale (VAS). Compared with those observed before the stress task, the mean salivary CgA levels of the non-bruxism group (n = 54) were not significantly increased after the stress task. Conversely, the mean salivary CgA levels of the bruxism group (n = 22) were significantly increased after the stress task (P < 0.01). The mean VAS scores of the groups without (n = 54) and with (n = 22) bruxism were significantly (P < 0.01) increased after the stress task compared with those observed before the stress task, but no differences were detected between the two groups in the stress task. These findings suggest that there is an association between sleep bruxism and psychological stress sensitivity.     

Associations of perceived prenatal stress and adverse pregnancy outcomes with perceived stress years after delivery

Archives of Women's Mental Health - Maternal stress is a risk factor for adverse pregnancy outcomes (APOs). This study evaluates the associations of prenatal stress and APOs with maternal...     

Association between patient race/ethnicity and perceived interpersonal aspects of care in the emergency department

OBJECTIVES: To determine if perceptions of interpersonal aspects of care in the emergency department (ED) vary by patient race/ethnicity. METHODS: Patients in a tertiary care academic ED responded to a 22-question survey focusing on interpersonal care aspects: affiliation, satisfaction, trust and participation. Scores for each of the four generated scales were compared in terms of race, ethnicity and other basic demographics. RESULTS: African-American patients demonstrated significantly lower mean scores for trust of healthcare providers than Caucasians and significantly lower levels of participation. African-American race/ethnicity continued to be a significant predictor of lower levels of trust (but not participation) after accounting for age, gender, education, household income, health insurance, healthcare received in last six months and route of referral to the ED. CONCLUSION: Preliminary evidence suggests that African Americans may feel less trust toward their ED providers. Understanding this phenomenon and teaching providers how to reduce distrust may translate into better patient compliance/outcomes and reduce healthcare disparities.     

A comparison of physiological responses and rating of perceived exertion between high-impact and low-impact aerobic dance sessions

The aim of this study was to compare the exercise intensity and rating of perceived exertion (RPE) of a high-impact (HIP) and a low-impact (LIP) university aerobic dance session. Ten women [mean (SD) age 22.9 (2.6) years] took part in the study. An incremental treadmill test was performed by each subject to determine maximum oxygen consumption (V˙O_{2 max} ) and maximum heart rate (HR _max ). The measured V˙O_{2 max} [mean (SD)] was 49.0 (7.5)?ml?·?kg^?1?·?min^?1. The subjects were randomly assigned to LIP and HIP sessions (i.e. five of the subjects participated in the HIP session first, and the other five participated in the LIP session first). In a laboratory, heart rate, oxygen uptake and RPE were measured throughout each session for each subject. Expired air was collected continuously throughout the sessions using Douglas bags (ten bags over a 30-min period). The sessions consisted of 20?min of aerobic exercise (bags 1–7) followed by 5?min of local muscular endurance exercise (bags 8 and 9) and 5?min of flexibility exercises (bag 10). The mean intensity of the aerobic section of the LIP and HIP sessions was 51.6% and 64.7% V˙O_{2 max} , respectively. Ninety-five percent confidence intervals for the average difference between the HIP and LIP sessions demonstrate that the %V˙O_{2 max} was between 12% and 14% higher for the HIP session. The mean %HR _max for the LIP and HIP sessions was 71.4% and 76.7%, respectively, with the %HR _max in the HIP session being between 5.4% and 7.2% higher on average than that of the LIP session. On average, the RPE for the aerobic section of the HIP session (12.1) was consistently higher than that of the LIP session (11.1). HIP activity has the potential to maintain/improve the aerobic fitness of its participants. According to the literature, the exercise intensity elicited by LIP activity may have a limited training effect for the population utilised in this study, and for some individuals may result in detraining. Conversely, LIP activities may be an appropriate mode of exercise for overweight and unfit individuals.     

Psychological and behavioral pathways between perceived stress and weight change in a behavioral weight loss intervention

Journal of Behavioral Medicine - Black women have a higher prevalence of obesity and tend to have suboptimal outcomes in behavioral weight loss programs for reasons that are not fully understood....     

Humoral indices of stress in rats

Rats, bearing chronic venous cannulas, were subjected to 30 sec of constant current grid shock at 1 of 6 intensities (0, 0.25, 0.5, 1, 2, 4 mA), after being allowed to acclimate to the test chamber overnight. Blood, sampled before and after shock, was assayed for epinephrine, norepinephrine and corticosterone. Peak levels of both catecholamines increased in a stepwise fashion (i.e., monotonically) with increasing magnitude of stress, as reflected by current intensity of foot shock. Plasma corticosterone did not increase monotonically but instead showed similar increases in the 5 groups of rats that actually received shock. These data support earlier work which indicate that plasma corticosterone is not a sensitive index of stress; this is probably the case because of the relatively narrow range of responsiveness of the adrenal cortex to ACTH. In contrast, both plasma catecholamines appear to satisfy some of the requisites for a sensitive visceral index of stress.     

Predictors of Native American children's perceived status of health and physical shape

To increase our understanding of predictors of healthy behavior patterns in Native American children. Children from the Southwest (N  = 145) United States were administered a questionnaire with predictors of healthy living behaviors (i.e., perceived health status and perceived physical shape [fitness]). Using structural equation modeling, significant path estimates were present for self‐efficacy in predicting beliefs, for (removing) barriers, and for adult/peer support. Further, belief, barriers, and peer social support significantly predicted goals/intentions to be physically active. For children's perceived physical shape (fitness), similar results were found except with no significant relationship between self‐efficacy and (removing) barriers. Efforts focusing on increasing support systems and improving experiences (leading to positive efficacy/beliefs) can lead to significantly greater goals/intentions and perhaps the adoption of healthy behavior patterns by children.     

Changes in the perceived pleasantness of fluids before and after fluid loss through exercise: a demonstration of the association between perceived pleasantness and physiological usefulness in everyday life

It has previously been suggested that the perceived pleasantness of a food item in any situation may be directly related to the physiological usefulness of that item to the consumer in that situation. This study investigated changes in the perceived pleasantness of fluids before and after fluid loss through exercise-an everyday situation in which physiological need can alter. Total of 40 exercisers achieving high fluid loss (Group H) and 41 exercisers achieving low fluid loss (Group L) rated seven fluids of varying osmolality, electrolyte content, and energy content on measures of pleasantness, before and after exercise. After fluid loss compared to before fluid loss, perceived pleasantness of all fluids increased (F(1,79)=14.58, p<0.01), and effects were greater in Group H compared to Group L (F(1,79)=8.29, p<0.01). Perceived pleasantness was also significantly higher for fluids of lowest osmolality (F(6,474)=2.14, p<0.05), and effects were again greater in Group H compared to Group L (F(6,474)=2.10, p<0.05). Both findings suggest that perceived pleasantness is related to physiological usefulness, and can be demonstrated in everyday situations.     

Attributional style and perceived stress in endogenous and reactive depression

The depressive Attributional Style Questionnaire (Peterson et al., 1982) and the Hassles and Uplifts Questionnaire (Kanner et al., 1981) were administered to melancholic and non-melancholic depressed patients (matched for severity according to a doctors/nurses rating scale), and to non-depressed volunteers. Compared to the other two groups, melancholic patients had higher internality and stability scores for negative attributions, and reported a greater intensity of 'hassles' and a lower frequency of 'uplifts'. The intensity of 'uplifts' was reduced in both depressed groups. On all other cognitive measures, the reactive patients were indistinguishable from non-depressed volunteers. The results suggest that the 'depressive attributional style' may be specific to melancholic patients, and underline the importance of studying well-defined diagnostic subgroups.