Fatigue and Depressive Mood in Chronic Low Back Pain.

PURPOSE: Fatigue is prevalent, problematic, and co-occurs in chronic low back pain. When left untreated, fatigue can increase depressive mood, and intensify pain burden and disability in patients with chronic low back pain. The purpose of this study was to examine the relationship of fatigue to depressive mood, pain severity, and pain interference in patients with chronic low back pain. DESIGN AND METHODS: A cross-sectional design was used to enroll and evaluate adults (n = 67) with chronic low back pain (>6 months) during their visit to an outpatient pain clinic. Participants completed psychometric instruments for fatigue, depressive mood, pain severity, and pain interference. RESULTS: Participants were primarily women (73%), White (59%), with a median age of 59 years (range 22-70 years). Multiple regression models showed significant positive associations between fatigue and depressive mood (SD: 0.025 p = 0.017) with a coefficient of 0.069; fatigue and pain interference (SD: 0.123 p = 0.010) with a coefficient of 0.652; fatigue and pain severity (SD: 0.125 p-value <0.05) with a coefficient of 0.359. After adjusting for demographic factors (age, sex, and race/ethnicity) the associations remained significant. CONCLUSIONS: The findings suggest that fatigue is associated with greater depressive mood, pain severity, and pain interference in adults with chronic low back pain. CLINICAL IMPLICATIONS: Assessing the extent of fatigue and depressive mood as part of pain management may benefit patients with chronic low back, thereby reducing symptom burden.

Analyzing Apparent Causes of 30-Day Readmissions to Acute Care From Skilled Nursing Facilities.

This quality improvement project implemented a bidirectional apparent cause analysis of patients readmitted to 1 hospital from 8 skilled nursing facilities (SNFs). The purpose of the project was to receive input from both hospital and SNF nursing staff to critically examine the apparent causes of SNF readmissions from both settings and identify opportunities for improvement. Nurse-led measures to prevent readmissions can be found in 5 domains: improved collaboration, communication, coordination, clarification, and cause analysis.

Association of external interruptions with increased medication administration duration and self-interruptions: A direct observational study: Empirical research quantitative.

AIMS: To examine task duration and frequency of self-interruptions among study participants during externally interrupted compared with externally uninterrupted simulated medication administration. BACKGROUND: Interruptions are prevalent during nursing medication administration and can lead to inefficient, delayed, omitted and unsafe patient care. Interrupted nursing tasks are shown to take longer to complete compared to uninterrupted tasks; however, studies seldom indicate if the time spent in the interruption was included or excluded in the reported task duration. It is unknown if the time spent in the interruption leads to longer task completion times or if other factors, such as the time needed to re-engage in the primary task and/or self-interruptions, are involved. Little is known about associations between external interruptions and self-interruptions during nursing tasks. Self-interruptions are caused by an individual's own decision to stop an activity to attend to something else. DESIGN: Cross-sectional within-subjects design. METHODS: This two-site study investigated task duration and frequencies of self-interruptions during externally interrupted and externally uninterrupted simulated medication administration. Data on medication administration duration, external interruption duration and self-interruptions were collected via direct observation from November 2019-February 2020. The time spent in the external interruption was deducted from the medication administration duration. RESULTS: Thirty-five participants were included in the study. The externally interrupted task had a significantly longer duration and significantly more frequent self-interruptions within-subjects compared to the externally uninterrupted task. Self-interruptions were most often due to forgotten supplies. CONCLUSIONS: The findings suggest that the time needed to re-engage with an externally interrupted task and/or self-interruptions may lead to longer task completion times. IMPACT: Researchers are encouraged to investigate mediators of interruptions that lead to longer task completion times and errors. Findings can be used to develop and implement interruption management strategies that aim to improve the safety and quality of patient care. REPORTING METHOD: Equator guidelines were followed using the STROBE reporting method. PATIENT/PUBLIC CONTRIBUTION: No patient or public involvement in this study. IMPLICATIONS FOR THE PROFESSION AND/OR PATIENT CARE: Educators and researchers can use the study findings to guide teaching methods and direct future studies. By gaining a better understanding of the mediators of interruptions that create longer task completion times and increase the risk for errors, tailored interruption management strategies that aim to improve the safety and quality of healthcare can be developed and implemented.

Reducing Disparities in Postpartum Care Utilization: Development of a Clinical Risk Assessment Tool.

INTRODUCTION: Patients receiving care at Federally Qualified Health Centers (FQHCs) have low postpartum care attendance. Perinatal morbidity and mortality disproportionately affect patients with low-income and are potentially preventable. The purpose of this study was to develop a clinical decision support tool to identify FQHC patients less likely to return for postpartum care. To accomplish this purpose, we evaluated established predictors and novel risk factors in our patient population. METHODS: This is a retrospective, secondary data analysis of 50,022 patients who received prenatal care past 24 weeks' gestation in FQHCs between 2012 and 2017. The postpartum visit was defined using Healthcare Effectiveness Data and Information Set measures as early care (birth to 21 days) and later care (21-84 days). Anderson's Behavioral Model for Access to Healthcare guided inclusion of potentially predictive factors. We stratified data by postpartum care attendance, and a final predictive model was selected by model fit statistics and clinical relevance. RESULTS: In our sample, 64% of birthing persons attended postpartum care at FQHCs. Of those who returned for care, 38% returned within 21 days postbirth and 62% returned between 21 and 84 days, with 28% returning for both early and later care. Predictors for postpartum care attendance included maternal age, parity, gestational age at first visit, and number of prenatal care visits. A clinical decision support tool for identifying patients less likely to return for care was created. DISCUSSION: An easy to implement clinical decision support tool can help identify FQHC patients at risk for postpartum nonattendance. Future interventions to improve adequacy of prenatal care can encourage early entry into prenatal care and sufficient prenatal visits. These efforts may improve postpartum care attendance and maternal health.

Impact of a Mindfulness-Based Stress Reduction Program on Psychological Well-Being, Cortisol, and Inflammation in Women Veterans.

BACKGROUND: Women veterans experience higher levels of stress-related symptoms than their civilian counterparts. Psychological stress is associated with greater inflammation and may increase risk for cardiovascular disease (CVD). Mindfulness-based stress reduction (MBSR) has been found to improve psychological well-being in other populations but no randomized controlled trials (RCT) have been conducted examining the impact of MBSR on well-being and inflammation in women veterans at risk for CVD. OBJECTIVE: Determine the effectiveness of MBSR in improving psychological well-being, cortisol, and inflammation associated with CVD in women veterans. DESIGN: The design is a RCT comparing MBSR to an active control condition (ACC) consisting of a health education program. PARTICIPANTS: Women veterans (N=164) with risk factors for CVD from the Chicagoland area participated in the study. INTERVENTION: An 8-week MBSR program with weekly 2.5-h classes was compared to an ACC consisting of an 8-week health promotion education program with weekly 2.5-h classes. MAIN MEASURES: The outcomes were psychological well-being [perceived stress, depressive symptoms, loneliness, and post-traumatic stress disorder (PTSD)] symptoms and stress-related markers, including diurnal salivary cortisol and cytokines interleukin-6 (IL-6) and interferon gamma (IFN-γ). Data were collected at baseline, 4 weeks (mid-point of intervention), 8 weeks (completion of intervention), and 6 months after completion of MBSR or ACC. KEY RESULTS: Compared to the ACC, women who participated in MBSR reported less perceived stress, loneliness, and symptoms of PTSD. Although there were no significant differences between groups or changes over time in IL-6 or IFN-γ, participants in the MBSR program demonstrated a more rapid decline in diurnal salivary cortisol as compared to those in the ACC. CONCLUSIONS: MBSR was found to improve psychological well-being and decrease diurnal salivary cortisol in women veterans at risk for CVD. Health care providers may consider MBSR for women veterans as a means by which to improve their psychological well-being.

Nursing Implications of Mindfulness-Informed Interventions for Stroke Survivors and Their Families.

The consequences of stroke can be devastating and include psychological distress, such as anxiety and depression, functional deficits, pain, and cognitive impairment. Symptoms are complex and impact not only the stroke survivor but may also be challenging for family caregivers. Studies have consistently demonstrated that mindfulness-informed interventions (MBI), such as mindfulness-based stress reduction and acceptance and self-compassion therapies, improve symptoms in a wide variety of clinical populations. However, research examining MBIs within the stroke population is in its infancy. Nurses, who have traditionally focused on holistic care delivery are in a unique position to incorporate MBIs throughout the stroke care continuum. In this topical review, we examine the literature related to the use of MBIs in stroke survivors and their family caregivers. We include a critical appraisal of existing literature, discuss nursing implications, and make recommendations for future research. Mindfulness-informed interventions are feasible and acceptable within the stroke population and may be an important complementary treatment to help stroke survivors and their families manage the consequences of stroke. We recommend further research to tailor MBI programs to the unique needs of stroke survivors and their family caregivers. In addition, nurses should consider opportunities to be trained in MBIs and incorporate these programs into their practice and research.

Heart Rate Variability and Inflammatory Stress Response in Young African American Men: Implications for Cardiovascular Risk.

Background: African American men have a disproportionately higher incidence of and suffer greater severity and earlier death from cardiovascular disease (CVD). A common feature of many diseases, which disproportionately afflict disadvantaged African Americans, is inflammation. In particular, inflammation plays a decisive role in the pathogenesis of CVD in that persistent inflammation contributes to plaque evolution and destabilization. Adverse childhood experiences increase the risk for adult inflammatory based disease, particularly cardiovascular disease. This inflammatory burden becomes evident during stressful events and may be related to alterations in autonomic nervous system (ANS) activity. We previously reported that African American men who experienced childhood adversity exhibited a greater inflammatory (IL-6) response to acute stress challenge (Trier Social Stress Test - TSST). The purpose of this study was to determine whether altered ANS activity, as measured by heart rate variability (HRV), contributes to a greater proinflammatory response to stress in those exposed to childhood adversity. Methods: Thirty-four African American adult males underwent the TSST while instrumented with Holter monitors to record continuous heart rate for HRV determination. HRV was calculated as the low frequency (LF) to high frequency (HF) heart rate ratio (LF/HF), with higher LF/HF ratios corresponding to higher sympathetic vs. parasympathetic activity. Salivary samples were collected pre- and post-TSST to measure the proinflammatory cytokine IL-6. Childhood adversity was assessed by the Childhood Trauma Questionnaire. Results: Hierarchical linear modeling demonstrated that higher levels of physical abuse were related to a steeper rise in LF/HF ratio during the TSST. Further, a higher LF/HF ratio, in combination with greater exposure to emotional and physical abuse was associated with a greater IL-6 response to the TSST. Conclusions: These findings suggest that adverse childhood experiences associate with an adult phenotype characterized by an altered ANS response to stress as well as a greater proinflammatory (IL-6) response to an acute stressor. Elevations in salivary inflammatory markers have been associated with increased CVD risk. In conclusion, these findings suggest a role for the ANS in the underlying neuro-biological processes whereby childhood adversity predisposes to a more intense inflammatory response to stressful challenge during adulthood.

Social Support Is Inversely Associated With Sleep Disturbance, Inflammation, and Pain Severity in Chronic Low Back Pain.

BACKGROUND: Chronic low back pain (CLBP) is a significant cause of disability, lost wages, and healthcare costs. Inflammatory mediators, such as interleukin-6 (IL-6), have been associated with LBP severity. Patients with CLBP commonly experience sleep disturbance, and poor sleep has been shown to increase pain severity and inflammation. In contrast, social support may benefit patients with CLBP by reducing pain intensity and inflammation. OBJECTIVES: The purpose of this study was to examine the influence of social support on the relationships among sleep disturbance, inflammation, and pain severity in patients with CLBP. METHODS: In a cross-sectional study, men and women with CLBP were enrolled from an outpatient pain clinic. Participants completed psychometric instruments for social support, sleep quality, and pain severity. Blood samples were obtained for measurement of the pro-inflammatory cytokine IL-6 by enzyme-linked immunoassay. RESULTS: Linear regression revealed greater sleep disturbance predicted greater pain severity. In contrast, participants who reported higher social support had lower sleep disturbance and lower pain severity. Mediation analysis revealed sleep disturbance to mediate the relationship between social support and pain, such that sleep disturbance reduced the benefit of social support on pain severity. Furthermore, greater sleep disturbance and lower social support predicted increased IL-6. However, IL-6 did not mediate the relationship between social support and pain. DISCUSSION: The findings suggest that increased social support is associated with lower sleep disturbance, lower inflammation, and lower pain severity in patients with CLBP. Assessing the extent of social support and fostering social support as part of a comprehensive pain management program may benefit patients with CLBP. Interventions to strengthen social support systems and cultivate support from family and/or informal social networks may reduce symptom burden and improve quality of life.

Preliminary evidence for a race-based stress reduction intervention for Black women at risk for cardiovascular disease.

OBJECTIVE: Despite evidence that chronic stress, racism, and discrimination impact the well-being and the risk for cardiovascular disease (CVD) in Black women, there are few evidence-based interventions that improve well-being and reduce the risk for CVD in women of minority groups. The purpose of this pilot study was to evaluate the psychobehavioral and anti-inflammatory benefit of a race-based stress reduction program "Resilience, Stress, and Ethnicity (RiSE) for Black women at risk for CVD. METHODS: Black women were recruited from the Chicagoland community and randomized to either the 8-week RiSE intervention (n = 40) or control group (n = 34). Participants were assessed for coping strategies, psychological distress, and blood levels of TNF-alpha and high sensitivity C-reactive protein (hsCRP) at baseline and at 4 and 8 weeks after baseline. RESULTS: Participation in RiSE was associated with a more rapid decline in the use of avoidance coping (b = -0.3585, SE = 0.1705, p < .01). Reductions over time in TNF-alpha (b = -0.0163, SE = .0087, p = .08) and hsCRP (b= -0.4064, SE = 0.2270, p = .08) approached statistical significance. CONCLUSIONS: Findings provide preliminary evidence in Black women at risk for CVD that RiSE contributes to decreases in avoidance coping. Although preliminary, these results suggest RiSE to be an effective intervention to promote improved coping associated with racism and discrimination in minorities.

Behavioral Symptom Clusters, Inflammation, and Quality of Life in Chronic Low Back Pain.

BACKGROUND: Chronic low back pain is a prevalent condition, often involving an inflammatory process. Behavioral symptoms, including depressed mood, fatigue, and sleep disturbance, intensifies pain and reduces quality of life. AIMS: The objectives of this pilot study were to identify behavioral symptom clusters (depressive mood, fatigue, poor sleep) in individuals with chronic low back pain, and to determine whether there are differences in pain, quality of life and inflammation (plasma IL-6) based on cluster membership. DESIGN AND SETTINGS: A cross-sectional study was conducted in a pain clinic. PARTICIPANTS/ SUBJECTS: Participants between ages 21 to 70 years (N=69) were enrolled if they had chronic low back pain for at least six months. METHODS: Participants completed instruments measuring, pain, depressive mood, fatigue, sleep, and demographic form. Blood (10ml) was obtained. Latent class analysis was used to identify clusters. RESULTS AND CONCLUSIONS: Findings revealed a two-class model, with Class 1 characterized by more depressive mood, fatigue, and sleep disturbance compared to Class 2. Class 1 participants reported worse quality of life than those in Class 2. Pain severity and pain interference were not significantly different between the classes. Levels of IL-6 were significantly greater in Class 1 participants compared to Class 2 with higher levels of IL-6 correlating with greater pain severity and sleep disturbances. Logistic regression revealed higher levels of IL-6 predicted Class 1 membership. Behavioral symptoms cluster exist in chronic low back pain patients and impact quality of life. Inflammation may contribute to relationship between behavioral symptoms and pain severity.

Mindfulness Predicts Psycho-behavioral Improvement after Breast Cancer Diagnosis: Influence of Childhood Adversity.

Mindfulness-based interventions provide psychological benefit after breast cancer diagnosis. The aims of this study were to determine whether within-person change in facets of mindfulness predict psycho-behavioral improvements in women with breast cancer, and to assess the influence of childhood adversity on those improvements. Women randomized to the mindfulness arm of a larger trial were evaluated. Psychometric instruments and the Five Facets of Mindfulness Questionnaire were completed pre-, mid-, at completion, one, and six months post program. A subsample completed the Childhood Trauma Questionnaire. Hierarchical linear modeling revealed that significant change in nonjudgment and nonreactivity to inner experience were associated with more rapid decrease in stress, depressive symptoms, fatigue, sleep disturbance, and more rapid increase in quality of life. For women with greater exposure to childhood adversity, a greater increase in nonreactivity to inner experience significantly associated with greater improvements in stress, depressive symptoms, and quality of life.

Yoga for Women With Urgency Urinary Incontinence: A Pilot Study.

OBJECTIVES: The objective of this study was to evaluate the feasibility of a gentle yoga program for women with urgency urinary incontinence (UUI). Also, these preliminary data can evaluate if yoga improves symptom burden, quality of life, and inflammatory biomarkers for women with UUI. METHODS: This prospective nonrandomized single-arm pilot study evaluated the effectiveness of a twice-weekly, 8-week gentle yoga intervention to reduce UUI symptom burden. Changes in symptom burden were measured using the Pelvic Floor Distress Inventory 20. Secondary measures included quality of life, depressive symptoms, sleep, stress, anxiety, and inflammatory biomarkers. Outcomes were evaluated with paired t testing. RESULTS: Twelve women completed the yoga intervention with no adverse outcomes noted. Urgency symptom burden was significantly improved after the intervention (P = 0.01), and women reported an increase in quality of life (P = 0.04) after the yoga intervention. Following the yoga intervention, the majority of women reported symptoms as "much better" (n = 4 [33%]) and "a little better" (n = 5 [42%]), with 3 women (25%) reporting "no change." Women also reported significant reduction in depressive symptoms (P = 0.03) and better quality of sleep (P = 0.03). No significant changes were found in anxiety or stress perception. Plasma levels of the inflammatory biomarker tumor necrosis factor α were reduced after yoga intervention (P = 0.009); however, no significant postyoga changes were found for interleukin 6 or C-reactive protein. CONCLUSIONS: This study provides preliminary evidence that yoga is a feasible complementary therapy that reduces incontinence symptom burden, along with improving quality of life, depressive symptoms, and sleep quality. Additionally, yoga may lower inflammatory biomarkers associated with incontinence.

Mindfulness based stress reduction provides psychological benefit and restores immune function of women newly diagnosed with breast cancer: A randomized trial with active control.

BACKGROUND: Women newly diagnosed with breast cancer experience psychological distress, accompanied by reduced Natural Killer Cell Activity (NKCA) and altered levels of cytokines, which may compromise cancer control. Few studies have evaluated psycho-immune outcomes of mindfulness-based stress reduction (MBSR) for women newly diagnosed with breast cancer in comparison to an active control condition. OBJECTIVE: The purpose of this study was to determine whether MBSR benefits psychological, behavioral, and immunological function in women recently diagnosed with breast cancer. DESIGN: After confirmation of breast cancer staging, women diagnosed with early-stage breast cancer (n = 192) were randomized to an 8-week MBSR program or an 8-week active control condition (ACC). The ACC consisted of a series of cancer recovery and health education classes. Both MBSR and the ACC were administered in group format. METHODS: Women completed psychometric instruments and provided blood for NKCA and cytokine levels at pre-, mid-, and completion of program, as well as at 1- and 6-months post-program. One hundred and twenty four women completed all five-assessments (MBSR, n = 63; ACC, n = 61). Hierarchical linear modeling was used to analyze trajectories of outcomes over time and between groups. RESULTS: Compared to the ACC group, women randomized to MBSR exhibited decreasing trajectories of perceived stress, fatigue, sleep disturbance, and depressive symptoms. Further, compared to women randomized to ACC, MBSR women exhibited trajectories demonstrating significantly more rapid restoration of NKCA, accompanied by lower circulating TNF-alpha levels, lower IL-6 production, and greater IFN-gamma production. CONCLUSIONS: These results demonstrate early provision of MBSR for women newly diagnosed with breast cancer provides not only psychological benefit, but also optimizes immune function supportive of cancer control.

Resilience in African American Women at Risk for Cardiovascular Disease: an Exploratory Study.

African Americans (AAs) have a higher risk for cardiovascular disease (CVD) which is not fully explained by traditional CVD risk factors such as smoking, obesity, hypertension, and diabetes. Evidence demonstrates that chronic stress, low subjective status, and lack of social support play important roles in increasing the risk for CVD, particularly in minority women. Increasing evidence demonstrates that resilience may ameliorate the effect of social stressors on the development of CVD. However, little is known about the social context that may influence resilience in AA women. Therefore, the purpose of this exploratory study was to examine the predictors of resilience in AA women at risk for CVD. A cross-sectional sample of AA women (N = 104) participated in the study. Participants completed measures of resilience, subjective social status, social support, and general stress. Findings revealed that participants had low levels of resilience as measured by the Connor-Davidson Resilience Scale (mean = 50.3 ± 11.4) compared to norms. Results of the multiple linear regression analysis demonstrated that both subjective social status in relation to others in the USA (p = 0.021) and perceived social support (p < 0.001) predicted greater level of resilience. The model, controlling for age, marital status, income, level of education, and general stress, accounted for a significant proportion of variance (F[8,75] = 6.6, p < .001), explaining 41.7% of the variation in resilience. Results suggest that subjective social status and social support contribute to perceived resilience in AA women. Additional research is needed to assess the association of subjective social status and social support in longitudinal studies.

Musculoskeletal Pelvic Pain and Sexual Function in the First Year After Childbirth.

OBJECTIVE: To characterize sexual function in women with and without musculoskeletal pelvic pain during the first year after childbirth. DESIGN: Cross-sectional descriptive study. SETTING: Outpatient women's health clinic in a Midwestern U.S. academic medical center. PARTICIPANTS: Women who gave birth to singleton infants within the past year. METHODS: Women were recruited from various outpatient settings. We obtained baseline demographic variables and used selected components from the Wilson and Cleary Health-Related Quality of Life model. Participants completed questionnaires related to sexual health, pain symptoms, and general quality of life. They were asked to indicate their pain on a pain diagram and to quantify it with the use of a numeric rating scale (NRS). Examiners used validated examination techniques to assess pelvic floor muscle tenderness, strength, and pelvic girdle pain. Participants who reported pelvic pain and had at least one positive physical examination finding were classified in the pain group. RESULTS: Forty-five participants completed the study, and 20 participants were in the pain group. Most participants with pain had pelvic girdle pain (n = 15) and pelvic floor myofascial pain (n = 20). Participants with pain reported less sexual satisfaction (t[43] = 2.84, p = .007) and reduced quality of life (t[36] = 5.25, p < .001) compared with participants without pain. CONCLUSION: Participants who experienced musculoskeletal pelvic pain in the first year after childbirth were significantly more likely to report problems with sexual function compared with their counterparts without pain.

Perceived discrimination is associated with the inflammatory response to acute laboratory stress in women at risk for cardiovascular disease.

Cardiovascular disease (CVD) is the leading cause of death in the United States and exacts a disproportionate toll on minorities. Growing evidence demonstrates that perceived discrimination is a significant contributing factor to psychological distress, chronic low-grade inflammation, and cardiovascular health. However, little is known regarding the extent to which perceived discrimination contributes to the inflammatory response to acute stress. Therefore, the purpose of this study was to examine the influence of perceived discrimination on the inflammatory response to a laboratory acute stress paradigm in women at risk for CVD. A cross-sectional sample of 99 postmenopausal women (50 African American and 49 non-Hispanic White) (mean age 60.2 years) with at least two risk factors for CVD underwent the Trier Social Stress Test (TSST). Subjects completed the Detroit Area Study Discrimination Scale (DAS-DS) Everyday Discrimination subscale and provided blood and saliva samples prior to the TSST and every 15 min up to 90 min post-TSST to measure a pro-inflammatory cytokine, interleukin-6 (IL-6). Perceived discrimination was significantly associated with the salivary IL-6 response to the TSST (b = 0.49, SE = 0.13, p = <0.001) controlling for age, race, marital status, household income, BMI, statin use, childhood maltreatment, depressive symptoms, and subjective social status. Women who reported higher levels of perceived discrimination had higher levels of salivary IL-6 at baseline and following the TSST as compared to women who reported lower levels of perceived discrimination. Results suggest that higher levels of perceived discrimination, regardless of race and socioeconomic status, may heighten levels of inflammation, prior to and following an acute stress exposure. The circulating Il-6 response was associated with BMI only and did not correlate with salivary IL-6. These data suggest that perceived discrimination may contribute to the salivary-IL-6 acute stress response. However, more research is needed to help clarify the complex relationships among stress and salivary proinflammatory cytokines.

During stress, heart rate variability moderates the impact of childhood adversity in women with breast cancer.

Childhood adversity has long-lasting neuro-biological effects that can manifest as exaggerated stress responsivity to environmental challenge. These manifestations include a dysregulated hypothalamic-pituitary-adrenocortical (HPA) axis as well as increased levels of inflammatory mediators in response to stress. In this investigation, vagal parasympathetic activity was assessed for its capacity to moderate the relationship between childhood adversity and stress responsivity (cortisol and inflammation) during an acute laboratory challenge (Trier Social Stress Test-TSST). Thirty women recently diagnosed with breast cancer underwent the TSST during which their heart rate was recorded and saliva samples collected for measurement of cortisol and the proinflammatory cytokine, IL-6. Vagal activity during the TSST was calculated as the high-frequency (HF) component of heart rate variability (HRV). Vagal activity during the TSST moderated the effect of childhood adversity on both the cortisol and the IL-6 response. Women who had lower vagal stress-reactivity during the TSST and reported greater childhood adversity showed a larger rise in cortisol and IL-6 when compared to women with lower childhood adversity. The findings demonstrate that women with exposure to childhood adversity and low vagal stress-reactivity (reduced parasympathetic activity) exhibit an elevated stress response characterized by greater cortisol and proinflammatory cytokine release. Inflammatory burden and HPA dysregulation subsequent to stress may impair cancer control.

Chromatin organization as an indicator of glucocorticoid induced natural killer cell dysfunction.

It is well-established that psychological distress reduces natural killer cell immune function and that this reduction can be due to the stress-induced release of glucocorticoids. Glucocorticoids are known to alter epigenetic marks associated with immune effector loci, and are also known to influence chromatin organization. The purpose of this investigation was to assess the effect of glucocorticoids on natural killer cell chromatin organization and to determine the relationship of chromatin organization to natural killer cell effector function, e.g. interferon gamma production. Interferon gamma production is the prototypic cytokine produced by natural killer cells and is known to modulate both innate and adaptive immunity. Glucocorticoid treatment of human peripheral blood mononuclear cells resulted in a significant reduction in interferon gamma production. Glucocorticoid treatment also resulted in a demonstrable natural killer cell nuclear phenotype. This phenotype was localization of the histone, post-translational epigenetic mark, H3K27me3, to the nuclear periphery. Peripheral nuclear localization of H3K27me3 was directly related to cellular levels of interferon gamma. This nuclear phenotype was determined by direct visual inspection and by use of an automated, high through-put technology, the Amnis ImageStream. This technology combines the per-cell information content provided by standard microscopy with the statistical significance afforded by large sample sizes common to standard flow cytometry. Most importantly, this technology provides for a direct assessment of the localization of signal intensity within individual cells. The results demonstrate glucocorticoids to dysregulate natural killer cell function at least in part through altered H3K27me3 nuclear organization and demonstrate H3K27me3 chromatin organization to be a predictive indicator of glucocorticoid induced immune dysregulation of natural killer cells.

Relationship of childhood adversity and neighborhood violence to a proinflammatory phenotype in emerging adult African American men: An epigenetic link.

African American men (AAM) who are exposed to trauma and adversity during their early life are at greater risk for poor health over their lifespan. Exposure to adversity during critical developmental windows may embed an epigenetic signature that alters expression of genes that regulate stress response systems, including those genes that regulate the inflammatory response to stress. Such an epigenetic signature may increase risk for diseases exacerbated by inflammation, and may contribute to health disparity. The purpose of this study was to evaluate the extent to which exposure to early life adversity influences the psychological, cortisol, and proinflammatory response to acute stress (Trier Social Stress Test - TSST) in emerging adult AAM, ages 18-25years (N=34). Hierarchical linear modeling was used to examine the cortisol and IL-6 pattern of response to the TSST with respect to childhood adversity factors and DNA methylation of the IL-6 promoter. Findings revealed that in response to the TSST, greater levels of childhood trauma and indirect exposure to neighborhood violence were associated with a greater TSST-induced IL-6 response, and a blunted cortisol response. Reduced methylation of the IL6 promoter was related to increased exposure to childhood trauma and greater TSST-induced IL-6 levels. These results support the concept that exposure to childhood adversity amplifies the adult proinflammatory response to stress, which is related to epigenetic signature.

Unique Educational Needs of Emergency Nurse Practitioners.

The purpose of this study is to identify the unique educational needs of emergency nurse practitioners (ENPs). A survey from 167 nurse practitioners (NPs) practicing in the emergency department (ED) settings was analyzed. A variety of certified NPs practice in EDs: family NPs (30%), adult NPs (18%), acute care NPs (40%), and some with 2 or more certifications (12%). NPs come with a variety of basic educational preparations. The top educational needs specific to ENP preparation identified were managing critically ill patients, pharmacology, interpretation of laboratory tests, electrocardiograms, radiographs, and computed tomographic scans, suturing superficial lacerations, and mentoring by MDs and NPs. The unique and complex ED environment requires that NPs practicing in the ED receive a unique set of standardized education and skills to meet the demands of current practice. A standardized educational curriculum that includes the findings from this and other studies, along with additional clinical and a national certification examination, is discussed.