Rectoceles: Is There a Correlation Between Presence of Vaginal Prolapse and Radiographic Findings in Symptomatic Women?

BACKGROUND: Constipation is highly prevalent. Women with constipation are evaluated for the presence of vaginal prolapse that may contribute to obstructed defecation syndrome. Defecography can identify anatomic causes of obstructed defecation syndrome (rectocele, intussusception, and enterocele). OBJECTIVE: This study aimed to assess the characteristics of women with obstructed defecation syndrome and radiographic rectoceles with and without posterior vaginal wall prolapse and to characterize the relationship between anatomical abnormalities and dysfunction. DESIGN: This is a retrospective case-control study of women with obstructed defecation syndrome who had radiographic rectoceles on defecography. SETTINGS: Women who presented to a Pelvic Floor Disorders Center were included. PATIENTS: Cases were defined as constipated women with radiographic rectoceles and at least stage II posterior vaginal wall prolapse on examination. Controls were patients with radiographic rectoceles but without posterior vaginal wall prolapse on examination. MAIN OUTCOME MEASURES: Patient characteristics, anorectal testing results, and validated questionnaires were compared between groups. RESULTS: A total of 106 women met inclusion criteria. Women with posterior vaginal wall prolapse (48 (45.3%)) had larger rectoceles on defecography than women without it on examination (3.4 cm vs 3.0 cm, p < 0.01). Women with posterior vaginal wall prolapse on examination were more likely to splint during defecation than women without vaginal wall prolapse (63.8% vs 27.3%, p < 0.01). All other defecatory symptoms, anorectal manometry parameters, and questionnaire responses were similar between groups. LIMITATIONS: This study was limited by its retrospective study design. Our data were taken from a single institution within a center specializing in the treatment of pelvic floor disorders, potentially limiting generalizability. CONCLUSIONS: Patients with constipation, radiographic rectoceles, and vaginal prolapse may differ from those without evidence of prolapse. Patients with vaginal prolapse were more likely to splint to aide evacuation and demonstrated larger rectoceles on defecography. Further studies are needed to determine whether constipation causes progression along this continuum or whether progression of prolapse is a cause of worsening defecatory dysfunction. See Video Abstract at http://links.lww.com/DCR/B626. RECTOCELES EXISTE UNA CORRELACIN ENTRE LA PRESENCIA DE PROLAPSO VAGINAL Y LOS HALLAZGOS RADIOLGICOS EN MUJERES SINTOMTICAS: ANTECEDENTES:El estreñimiento es una enfermedad muy prevalente. Las mujeres con estreñimiento se evalúan para detectar la presencia de prolapso vaginal que pueda contribuir al síndrome de defecación obstructiva. La defecografía puede identificar las causas anatómicas del síndrome de defecación obstructiva (rectocele, invaginación intestinal (intususcepción) y enterocele).OBJETIVO:Este estudio tiene como objetivo evaluar las características de las mujeres con síndrome de defecación obstructiva y la presencia de rectocele como hallazgo radiológico, con y sin prolapso de la pared vaginal posterior, y caracterizar la relación entre las anomalías anatómicas y la presencia de disfunción.DISEÑO:Este es un estudio retrospectivo de casos y controles, de mujeres con síndrome de defecación obstructiva, que tenían rectocele como hallazgo radiológico en una defecografía.MARCO:Mujeres que acudieron a un Centro de Trastornos del Piso Pélvico.PACIENTES:Los casos fueron definidos como mujeres con estreñimiento con hallazgos radiológicos de rectocele, con al menos un prolapso estadio II de la pared vaginal posterio, en el examen físico. Los controles fueron pacientes con solo rectocele por hallazgos radiológicos, sin prolapso de la pared vaginal posterior en el examen físico.PRINCIPALES MEDIDAS DE RESULTADO:Se compararon entre los grupos: las características de las pacientes, los resultados de las pruebas diagnósticas anorrectales y los cuestionarios validados.RESULTADOS:Un total de 106 mujeres cumplieron los criterios de inclusión. Las mujeres con prolapso de la pared vaginal posterior 48 (45,3%) tenían rectoceles de mayor tamaño en la defecografía en comparación con las mujeres sin rectocele en el examen físico (3,4 cm versus 3,0 cm, p <0,01). Las mujeres con prolapso de la pared vaginal posterior en el examen, tenían una mayor probabilidad de que les fuera necesario ejercer una maniobra de presión manual o digital del periné durante la defecación, comparado con las mujeres sin rectocele clínico (63,8% versus 27,3%, p <0,01). Todos los demás síntomas defecatorios, los parámetros de la manometría anorrectal, y las respuestas al cuestionario fueron similares entre los grupos.LIMITACIONES:Estudio retrospectivo. Los datos fueron obtenidos de la base de datos de un centro especializado en el tratamiento de los trastornos del piso pélvico lo que potencialmente limita generalizar.CONCLUSIONES:Las pacientes con estreñimiento, rectocele como hallazgo radiológico, y prolapso vaginal pueden ser diferentes de aquellas sin evidencia de prolapso. Las pacientes con prolapso vaginal, tenían una mayor probabilidad de que les fuera necesario ejercer maniobras manuales o digitales de presión a nivel del periné para ayudar a la evacuación, y tenían rectoceles de mayor tamaño en la defecografía. Se necesitan más estudios para determinar si el estreñimiento causa que el rectocele aumente progresivamente de tamaño, empeorando la disfunción defecatoria. Consulte Video Resumen en http://links.lww.com/DCR/B626.

Domiciliary Cough Monitoring for the Prediction of COPD Exacerbations.

INTRODUCTION: Acute exacerbations of COPD (AE-COPD) are a leading cause of health service utilisation and are associated with morbidity and mortality. Identifying the prodrome of AE-COPD by monitoring symptoms and physiological parameters (telemonitoring) has proven disappointing and false alerts limit clinical utility. We report objective monitoring of cough counts around AE-COPD and the performance of a novel alert system identifying meaningful change in cough frequency. METHODS: This prospective longitudinal study of cough monitoring included chronic obstructive pulmonary disease (COPD) patients experienced in telemonitoring that had two or more AE-COPD in the past year. Participants underwent cough monitoring and completed a daily questionnaire for 90 days. The automated system identified deteriorating trends in cough and this was compared with alerts generated by an established telemonitoring questionnaire. RESULTS: 28 patients [median age 66 (range 46-86), mean FEV-1% predicted 36% (SD 18%)] completed the study and had a total of 58 exacerbations (43 moderate and 15 severe). Alerts based on cough monitoring were generated mean 3.4 days before 45% of AE-COPD with one false alert every 100 days. In contrast, questionnaire-based alerts occurred in the prodrome of 88% of AE-COPD with one false alert every 10 days. CONCLUSION: An alert system based on cough frequency alone predicted 45% AE-COPD; the low false alert rate with cough monitoring suggests it is a practical and clinically relevant tool. In contrast, the utility of questionnaire-based symptom monitoring is limited by frequent false alerts.

Factors influencing variation in participation in the National Diabetes Audit and the impact on the Quality and Outcomes Framework indicators of diabetes care management.

OBJECTIVE: Participation in the National Diabetes Audit (NDA) has become a contractual requirement for all general practices in England and is used as part of the assessment framework for sustainability and transformation partnership (STP) footprints. The study aimed to investigate general practice-related factors which may influence participation in the NDA, and the impact that participation in the NDA may have on diabetes management and patient care. RESEARCH DESIGN: A cross-sectional analysis of routine primary care data from 45 725 646 patients aged 17+ years registered across 7779 general practices in England was performed using logistic regression. The main outcome measures included general practice voluntary participation in the NDA, general practice-related factors (practice size, deprivation, diabetes prevalence, geographic area, practice population age) and diabetes management outcomes (cholesterol, blood pressure, hemoglobin A1c (HbA1c)). RESULTS: Participation in the NDA differed significantly according to practice size (t(7653)=-9.93, p=0.001), level of deprivation (χ2(9)=36.17, p<0.0001), diabetes prevalence (p<0.0001), practice population age (p<0.0001), and geographic area (χ2(26)=676.9, p<0.0001). In addition, the Quality and Outcomes Framework diabetes indicator HbA1c (OR 1.01, CI 1.0 to 1.01, p=0.0001) but not cholesterol (p=0.055) or blood pressure (p=0.76) was independently associated with NDA participation when controlling for practice-related factors. CONCLUSION: Variation in NDA participation exists. It is suggested that some practices may need additional support when submitting data to the NDA and that NDA participation may have an impact on diabetes outcomes. However, the use of NDA outcomes as a measure of progress with diabetes care by STPs is still unclear and further investigation is needed.

Phenotyping patients with chronic cough: Evaluating the ability to predict the response to anti-inflammatory therapy.

BACKGROUND: Whether the fraction of exhaled nitric oxide (FeNO) measurement can predict the response to anti-inflammatory treatment in chronic cough is unknown. OBJECTIVE: To explore whether the effectiveness of treatment with 10 mg of montelukast or 20 mg of prednisolone in patients with chronic cough is predicted by FeNO level. METHODS: In this randomized, open-label, controlled pilot study conducted in the Clinical Trial Unit in Castle Hospital in the United Kingdom, 50 nonsmoking patients with a cough that lasted more than 8 weeks were sequentially enrolled in the study. Thirty patients with high FeNO levels (≥30 ppb) were randomized in a 1:1 ratio to receive 10 mg of montelukast or 20 mg of prednisolone for 2 weeks followed by 10 mg of montelukast for 2 weeks. Twenty patients with a low FeNO level (≤20 ppb) received 10 mg of montelukast. The primary objective was to determine the effectiveness of treatment on 24-hour cough counts. RESULTS: The 24-hour cough counts decreased in both groups by approximately 50% (P < .005), indicating that FeNO did not predict treatment response. However, it was a good marker for eosinophilic inflammation with a high degree of correlation with blood and sputum eosinophilia (P < .001). CONCLUSION: These results suggest that prior investigation may not predict response to anti-inflammatory treatment, which may be consequent on localized leukotriene-mediated inflammation. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT02479074.

Does FeNO Predict Clinical Characteristics in Chronic Cough?

PURPOSE: To evaluate whether exhaled nitric oxide measurement can facilitate in the assessment of chronic cough patients based on their airway inflammatory phenotype. METHODS: We have studied consecutive patients attending a specialist cough clinic. 30 patients with high FeNO (> 30 ppb) and 20 patients with low FeNO (< 20 ppb) were recruited. RESULTS: There was a significant correlation between FeNO, B-Eos and sputum eosinophil count (p < 0.001). The number of recorded coughs in 24 h and HARQ scores were significantly (p < 0.05) higher in patients with a low FeNO. In contrast to the high FeNO group (48%), the greater proportion of these patients were women (90%). LCQ scores were worse in the low FeNO group but it was not significant. CONCLUSION: A strong relationship between FeNO, blood eosinophils and sputum eosinophils confirming phenotypic identity was observed. Whether the observed gender disparity accounts for the different cough frequency characteristics is unknown.

Inhaled beclomethasone/formoterol in idiopathic pulmonary fibrosis: a randomised controlled exploratory study.

IPF biomarker improved by ICS/LABA http://ow.ly/CHub30gzHry.

Continuous Cough Monitoring Using Ambient Sound Recording During Convalescence from a COPD Exacerbation.

PURPOSE: Cough is common in chronic obstructive pulmonary disease (COPD) and is associated with frequent exacerbations and increased mortality. Cough increases during acute exacerbations (AE-COPD), representing a possible metric of clinical deterioration. Conventional cough monitors accurately report cough counts over short time periods. We describe a novel monitoring system which we used to record cough continuously for up to 45 days during AE-COPD convalescence. METHODS: This is a longitudinal, observational study of cough monitoring in AE-COPD patients discharged from a single teaching hospital. Ambient sound was recorded from two sites in the domestic environment and analysed using novel cough classifier software. For comparison, the validated hybrid HACC/LCM cough monitoring system was used on days 1, 5, 20 and 45. Patients were asked to record symptoms daily using diaries. RESULTS: Cough monitoring data were available for 16 subjects with a total of 568 monitored days. Daily cough count fell significantly from mean ± SEM 272.7 ± 54.5 on day 1 to 110.9 ± 26.3 on day 9 (p < 0.01) before plateauing. The absolute cough count detected by the continuous monitoring system was significantly lower than detected by the hybrid HACC/LCM system but normalised counts strongly correlated (r = 0.88, p < 0.01) demonstrating an ability to detect trends. Objective cough count and subjective cough scores modestly correlated (r = 0.46). CONCLUSIONS: Cough frequency declines significantly following AE-COPD and the reducing trend can be detected using continuous ambient sound recording and novel cough classifier software. Objective measurement of cough frequency has the potential to enhance our ability to monitor the clinical state in patients with COPD.

Hormone Modulation of Toll-Like Receptor 5 in Cultured Human Bladder Epithelial Cells.

AIM: The effect of hormone levels on the stimulation of Toll-like receptor 5 (TLR5) in the bladder is unknown. We aimed to study the effect of estradiol and progesterone on TLR5 expression and function in human bladder epithelial cells. METHODS: After growing to near confluence, T24 human urinary bladder (HUB) cells were incubated in hormone-free (HF) media for 72 hours. Human urinary bladder cells were then incubated in (1) HF media, (2) estradiol media, (3) progesterone media, or (4) media containing estradiol and progesterone at physiologic concentrations. Following flagellin exposure, cells and media were collected. Toll-like receptor 5 expression and stimulated cytokine release were analyzed using enzyme-linked immunosorbent assays. Results were normalized with cellular protein assays. A TLR5 antagonist was used to confirm that stimulation from flagellin was mediated by TLR5 signaling. RESULTS: Cultured HUB cells express TLR5 protein. Estradiol and progesterone environments suppress TLR5 expression compared to HF environment. The function of TLR5 was measured by interleukin 6 (IL-6) and monocyte chemoattractant protein 1 production after flagellin exposure. Interleukin 6 production was 75% higher in the estradiol than progesterone environment. The progesterone environment produced IL-6 levels twice that observed in HF and combined estrogen-progesterone environments. Interestingly, higher TLR5 expression was associated with lower IL-6 production. CONCLUSION: Our study demonstrated that TLR5 expression and functional activity as measured by IL-6 are modulated by hormones. The increase in TLR5-associated IL-6 may play a role in increasing the rate of symptomatic urinary tract infection. Likewise, low TLR5 functional activity may dampen the response of the innate immune system, thereby lessening the likelihood of a symptomatic bladder infection.

Objective Measurement of Cough Frequency During COPD Exacerbation Convalescence.

Chronic obstructive pulmonary disease (COPD) is a major cause of morbidity and mortality worldwide. Cough and sputum production are associated with adverse outcomes in COPD and are common during COPD exacerbation (AE-COPD). This study of objective cough monitoring using the Hull Automated Cough Counter and Leicester Cough Monitor software confirms that this system has the ability to detect a significant decrease in cough frequency during AE-COPD convalescence. The ability to detect clinically meaningful change indicates a potential role in home monitoring of COPD patients.

Is opiate action in cough due to sedation?

OBJECTIVES: Opiates have been used for cough suppression for centuries. It is unclear whether this antitussive action is due to their known sedative effects. We aimed to assess correlation between cough suppression and opiate usage. METHODS: We performed a post hoc analysis of two published trials with three opioids. In study one, patients with chronic cough were treated with 4 weeks of modified release morphine sulphate (5 mg twice daily) or placebo in a double-blinded placebo-controlled fashion. Cough suppression was assessed subjectively by the Leicester Cough Questionnaire and objectively by citric acid aerosol (CAA) induced cough challenge. In study 2, normal volunteers were given single doses of placebo, codeine 30 mg or dextromethorphan 50 mg and cough suppression assessed using the CAA-induced cough challenge. Sedation was contemporaneously assessed by direct questioning. RESULTS: There were 14 episodes of patient-reported sedation; 2 with modified release morphine sulphate, 9 with codeine and 3 with dextromethorphan. There was no correlation between change in the Leicester Cough Questionnaire or the CAA-induced cough challenge and reported sedation. CONCLUSION: This observational study suggests that sedation is unlikely to underlie the antitussive properties of these opioids. Eliciting the mechanism of these medications in cough may be a target for future tailored drug development.

Medical student knowledge of global health problems: obstetric fistulas in developing countries.

OBJECTIVE: To evaluate medical students in the United States at several medical schools regarding their knowledge of the global health burden of obstetric fistulas. STUDY DESIGN: A cross-sectional survey was conducted in 8 schools across the United States over a period of 6 months. The survey was composed of 18 questions on epidemiology, pathology, and treatment of fistulas. It was a web-based module accessed through an emailed link. It was sent to 5,103 medical students' email addresses at the 8 institutions once a week for 4 weeks. SPSS paired student t tests was used for statistical analysis. RESULTS: Of the 1,089 students from 8 medical schools that initially began the survey, 965 completed this voluntary and anonymous survey, with a 21% response rate and 19% completion rate. Overall the students averaged 11/18 (60.7%) correct on this survey. The knowledge of obstetric fistula improved, but not significantly, with increasing level of medical school education, with first-year medical students achieving 10/18 (55%) correct and senior medical students achieving 12/18 (67%) correct (p = 0.1). CONCLUSION: U.S. medical students' knowledge of obstetric fistulas in developing countries does not increase significantly over 4 years of medical school education. While this condition presents largely in the developing world, given rapid globalization as well as increased international health experiences for U.S.-trained health professionals,further effort should be placed in improving medical student knowledge of this devastating condition.

Comparison of the effect of high-dose inhaled budesonide and fluticasone on adrenal function in patients with severe chronic obstructive pulmonary disease.

INTRODUCTION: Chronic obstructive pulmonary disease (COPD) is a leading cause of respiratory-related morbidity and mortality. Inhaled steroids are frequently used in patients with moderate to severe disease and may lead to adrenal suppression. OBJECTIVES: The aim of this study was to compare the effect of inhaled budesonide/formoterol with inhaled fluticasone/salmeterol in severe COPD. METHODS: It was a prospective open-label crossover study of 22 patients. Adrenal suppression was measured by overnight urinary cortisol/creatinine ratio. The measurements were taken while patients were on either combination for at least 4 weeks. RESULTS: A total of 12 patients completed the study. The mean age was 64 years (8 males, 4 females). The mean FEV1 was 1 L (range, 0.5-1.8). There was no significant difference in adrenal suppression measured by overnight urinary cortisol/creatinine ratio (budesonide 5.2 ± 4.3, fluticasone 4.7 ± 3.1; 95% CI -2.2 to 1.2; P = 0.52) and urinary cortisol concentration (budesonide 51 ± 53, fluticasone 43 ± 31 [nmol/l]; 95% CI -35 to 20; P = 0.56). CONCLUSION: Inhaled budesonide and fluticasone have no significantly different effect on adrenal function in moderate to severe COPD. The adverse event profile of high-dose inhaled steroids should not influence the choice of medication.

Psychological factors associated with poor sleep prior to breast surgery: an exploratory study.

This study explored the relationship between psychological factors (including intrusive thoughts, anxiety, well-being, depressed mood) and poor sleep the night before surgery. Patients (N = 39) scheduled for breast surgery (mean age = 47 years) wore an actiwatch at home the night before surgery to provide an objective indication of sleep duration and sleep efficiency. Participants also completed 3 measures of their psychological experience during the week prior to surgery. In separate regression analyses, intrusive thoughts, anxiety, and emotional well-being were each related to sleep duration the night before surgery, when controlling for age, body mass index, ethnicity, and marital status. No relationships were found between depressed mood, physical or social well-being, and sleep duration. In a multiple regression model that included all significant variables, intrusive thoughts were most strongly associated with sleep duration. Intrusive thoughts were also significantly related to sleep efficiency. Results suggest that patients' intrusions about impending surgery are associated with lower sleep duration and sleep efficiency the night before surgery. Additional research is warranted to explore the implications of these associations for patients, as well as possible interventions to improve sleep in this clinical setting.

Validation of the ERS standard citric acid cough challenge in healthy adult volunteers.

UNLABELLED: Protocols measuring cough sensitivity can vary in terms of nebuliser, tussive agent, single and dose response. A definitive method for measuring cough sensitivity needs to be established.The ERS guidelines recommend the KoKo DigiDoser (KD) delivery system. Study aim, was to compare the reproducibility of this citric acid (CA) cough challenge and previously established Mefar dosimeter (MD) protocol.39 (female 26) volunteers mean age (40.4 yrs) were randomised to either KD or MD. Intra-day and inter-day reproducibility was compared.We calculated the concentration of citric acid evoking 2 coughs (C2).The geometric mean C2 (95%CI) was similar for both KD and MD, of 263 (200,339) mM and 209 (151,288) mM respectively.The mean KD C2 was not significantly different. (F = 0.807, p = 0.93) from baseline over 1, 2, and 4 hrs however, the MD demonstrated significant variability (F = 7.85, P < 0.001)Measuring mean log C2 at baseline and at 2 weeks, the KD demonstrated a stronger intraclass correlation of log C2 at baseline with 2 week log C2, ICC = 0.70 than was shown with the Mefar, ICC = 0.41Administering CA from KD offers a reproducible cough challenge in healthy volunteers. The results correlate well with the MD challenge but offer greater intra-day and inter-day reproducibility. TRIAL REGISTRATION: Current controlled trials ISRCTN98385033.

Disrupted sleep the night before breast surgery is associated with increased postoperative pain.

Despite the best available clinical care, pain after surgery is a virtually universal patient experience that can have pervasive negative consequences. Given the large variability among patients in postoperative pain levels, research on novel modifiable risk factors is needed. One such factor suggested by recent experimental studies indicates that disruption of even a single night's sleep can increase subsequent pain in healthy volunteers. In this preliminary clinical study, we tested the hypothesis that poor sleep the night before surgery would predict heightened postoperative pain. Patients (n=24) scheduled for routine breast-conserving surgical procedures for the diagnosis or treatment of cancer were recruited and wore an actigraphy device providing objective, validated measures of sleep duration and disruption (low sleep efficiency). Pain severity and interference with daily activities for the week after surgery was assessed with the Brief Pain Inventory. As hypothesized, multiple regression analyses revealed that lower sleep efficiency was a significant predictor of greater pain severity and interference, controlling for age, race, and perioperative analgesics as appropriate. Sleep efficiency was not significantly related to measures of depressed mood, emotional upset, or relaxation assessed on the morning of surgery. Patients with sleep efficiency in the lowest tertile had clinically higher levels of pain (>2 points) compared with patients in the highest sleep efficiency tertile. Sleep duration had no significant effects. This preliminary clinical study supports the possibility that sleep disruption on the night before surgery may increase patients' experience of pain after surgery. Research to investigate the mechanisms underlying these effects and to explore the possible clinical benefits of interventions to improve patients' sleep before surgery is now warranted.

Circulating leptin and stress-induced cardiovascular activity in humans.

Obesity is associated with an elevated risk of hypertension and cardiovascular disease. The adipocyte hormone leptin, which stimulates energy expenditure in animals by activating the sympathetic nervous system (SNS), is believed to play a role in this association. However, evidence in humans remains sparse. We investigated the relationship between circulating leptin and cardiovascular and inflammatory responses to acute psychological stress in humans. Participants were 32 men and 62 women aged 18-25 years. Cardiovascular activity was assessed using impedance cardiography at baseline, during acute laboratory stress, and during a 45-min recovery period. Plasma cytokines were measured in blood drawn at baseline and 45-min poststress. In women only, baseline plasma leptin was significantly associated with stress-induced changes in heart rate (beta = 0.53, P = 0.006), heart rate variability (HRV) (beta = -0.44, P = 0.015), and cardiac preejection period (PEP) (beta = -0.51, P = 0.004), independent of age, adiposity, and smoking. Women's plasma leptin levels also correlated with stress-induced elevations in the proinflammatory cytokine interleukin-6 (IL-6) (beta = 0.35, P = 0.042). Circulating leptin is an independent predictor of sympathetic cardiovascular activity, parasympathetic withdrawal, and inflammatory responses to stress in women. Because cardiovascular and inflammatory stress responses are predictive of future cardiovascular disease, leptin may be a mechanism mediating the adverse effects of stress and obesity on women's cardiovascular health.

Self-esteem levels and cardiovascular and inflammatory responses to acute stress.

Acute mental stress tests have helped to clarify the pathways through which psychosocial factors are linked to disease risk. This methodology is now being used to investigate potentially protective psychosocial factors. We investigated whether global self-esteem might buffer cardiovascular and inflammatory responses to acute stress. One hundred and one students completed the Rosenberg Self-Esteem Scale. Heart rate and heart rate variability (HRV) were recorded for 5 min periods at baseline, during two mental stress tasks, (a speech and a color-word task) and 10, 25 and 40 min into a recovery period. Plasma levels of tumor-necrosis factor-alpha (TNF-alpha), interleukin-6 (IL-6) and interleukin-1 receptor antagonist (IL-1Ra) were assessed at baseline, immediately post-stress and after 45 min recovery. Repeated measures analysis of variance demonstrated that heart rate levels were lower across all time points in those with high self-esteem, although heart rate reactivity to stress was not related to self-esteem. There were no differences in baseline HRV, TNF-alpha, IL-6 or IL-1Ra. Multiple linear regressions revealed that greater self-esteem was associated with a smaller reduction in heart rate variability during the speech task, but not the color-word task. Greater self-esteem was associated with smaller TNF-alpha and IL-1Ra responses immediately following acute stress and smaller IL-1Ra responses at 45 min post-stress. In conclusion, global self-esteem is associated with lower heart rate and attenuated HRV and inflammatory responses to acute stress. These responses could be processes through which self-esteem protects against the development of disease.

Family history of cardiovascular disease is associated with cardiovascular responses to stress in healthy young men and women.

Heightened cardiovascular stress responsivity is associated with cardiovascular disease, but the origins of heightened responsivity are unclear. The present study investigated whether disturbances in cardiovascular responsivity were evident in individuals with a family history of cardiovascular disease risk. Data were collected from 60 women and 31 men with an average age of 21.4 years. Family history of cardiovascular disease risk was defined by the presence of coronary heart disease, hypertension, diabetes or high cholesterol in participants' parents and grandparents; 75 participants had positive, and 16 had negative family histories. Systolic and diastolic blood pressure (BP), heart rate and heart rate variability were measured continuously for 5 min periods at baseline, during two mental stress tasks (Stroop and speech task) and at 10-15 min, 25-30 min and 40-45 min post-stress. Individuals with a positive family history exhibited significantly greater diastolic BP reactivity and poorer systolic and diastolic BP recovery from the stressors in comparison with family history negative individuals. In addition, female participants with a positive family history had heightened heart rate and heart rate variability reactivity to stressors. These effects were independent of baseline cardiovascular activity, body mass index, waist to hip ratio and smoking status. Family history of hypertension alone was not associated with stress responsivity. The findings indicate that a family history of cardiovascular disease risk influences stress responsivity which may in turn contribute to risk of future cardiovascular disorders.

Poor sleep the night before an experimental stress task is associated with reduced cortisol reactivity in healthy women.

Sleep disruption is a growing problem that may have serious health effects. As stress-induced increases in cortisol are thought to be a key adaptive process it is important to examine how this response is affected by sleep. The current study investigated the association of four sleep parameters (objective/subjectively measured sleep quality and quantity) and subsequent salivary cortisol reactivity (maximal change from baseline) to an experimental stressor in 53 healthy women. Objective actigraphy monitoring and self-report diaries were used to assess sleep. Results revealed that individuals with lower objective sleep quality (wake percentage during sleep) had a blunted response to the experimental stressor. No associations were found between cortisol reactivity and actigraphy-derived sleep quantity, or either of the self-reported sleep variables. Results are discussed with regard to the possible adverse health effects that may result from poor sleep quality and a blunted cortisol response to stress.