1,162 research outputs found

    Issues in Exploring Variation in Childhood Socioeconomic Gradients By Age: A Response to Case, Paxson, and Vogl.

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    Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/116220/1/ssm07.pd

    Postmenopausal Women With Greater Paracardial Fat Have More Coronary Artery Calcification Than Premenopausal Women: The Study of Women's Health Across the Nation (SWAN) Cardiovascular Fat Ancillary Study.

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    BackgroundVolumes of paracardial adipose tissue (PAT) and epicardial adipose tissue (EAT) are greater after menopause. Interestingly, PAT but not EAT is associated with estradiol decline, suggesting a potential role of menopause in PAT accumulation. We assessed whether volumes of heart fat depot (EAT and PAT) were associated with coronary artery calcification (CAC) in women at midlife and whether these associations were modified by menopausal status and estradiol levels.Methods and resultsEAT and PAT volumes and CAC were measured using electron beam computed tomography scans. CAC was evaluated as (1) the presence of CAC (CAC Agatston score ≥10) and (2) the extent of any CAC (log CAC Agatston score >0). The study included 478 women aged 50.9 years (58% pre- or early perimenopausal, 10% late perimenopausal, and 32% postmenopausal). EAT was significantly associated with CAC measures, and these associations were not modified by menopausal status or estradiol. In contrast, associations between PAT and CAC measures were modified by menopausal status (interaction-P≤0.01). Independent of study covariates including other adiposity measures, each 1-SD unit increase in log PAT was associated with 102% higher risk of CAC presence (P=0.04) and an 80% increase in CAC extent (P=0.008) in postmenopausal women compared with pre- or early perimenopausal women. Additional adjustment for estradiol and hormone therapy attenuated these differences. Moreover, the association between PAT and CAC extent was stronger in women with lower estradiol levels (interaction P=0.004).ConclusionsThe findings suggest that PAT is a potential menopause-specific coronary artery disease risk marker, supporting the need to monitor and target this fat depot for intervention in women at midlife

    Epigenetics and Social Context: Implications for Disparity in Cardiovascular Disease

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    BACKGROUND: Although it is well established that African Americans (AA) experience greater social stressors than non-Hispanic Whites (NHW), the extent to which early life adversity and cumulative social stressors such as perceived discrimination, neighborhood violence, subjective social status, and socioeconomic status contribute to disparity in coronary heart disease (CHD) and stroke between AA and NHW are not well understood. PURPOSE: The purpose of this paper is to propose a conceptual model based upon McEwen’s Allostatic Load Model suggesting how the relationships among social context, early life adversity, psychological stress, inflammation, adaptation, and epigenetic signature may contribute to the development of CHD and ischemic stroke. We hypothesize that social context and prior life adversity are associated with genome-wide as well as gene-specific epigenetic modifications that confer a proinflammatory epigenetic signature that mediates an enhanced proinflammatory state. Exposure to early life adversity, coupled with an increased allostatic load places individuals at greater risk for inflammatory based diseases, such as CHD and ischemic stroke. RESULTS: Based on a review of the literature, we propose a novel model in which social context and psychological stress, particularly during early life, engenders a proinflammatory epigenetic signature, which drives a heightened inflammatory state that increases risk for CHD and stroke. In the proposed model, a proinflammatory epigenetic signature and adaptation serve as mediator variables. CONCLUSIONS: Understanding the extent to which epigenetic signature bridges the psycho-social environment with inflammation and risk for CHD may yield novel biomarkers that can be used to assess risk, development, and progression of CHD/stroke. Epigenetic biomarkers may be used to inform preventive and treatment strategies that can be targeted to those most vulnerable, or to those with early signs of CHD, such as endothelial dysfunction. Furthermore, epigenetic approaches, including lifestyle modification and stress reduction programs, such as mindfulness-based stress reduction, offer promise to reduce health inequity linked to social disadvantage, as emerging evidence demonstrates that adverse epigenetic marks can be reversed

    Pseudotumor cerebri syndrome in childhood : incidence, clinical profile and risk factors in a national prospective population-based cohort study

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    Aim To investigate the epidemiology, clinical profile and risk factors of pseudotumor cerebri syndrome (PTCS) in children aged 1-16 years. Methods A national prospective population-based cohort study over 25 months. Newly diagnosed PTCS cases notified via British Paediatric Surveillance Unit (BPSU) were ascertained using classical diagnostic criteria and categorised according to 2013 revised diagnostic criteria. We derived national age, sex and weight-specific annual incidence rates and assessed effects of sex and weight category. Results We identified 185 PTCS cases of which 166 also fulfilled revised diagnostic criteria. The national annual incidence (95% CI) of childhood PTCS aged 1-16 years was 0.71 (0.57- 0.87) per 100,000 population increasing with age and weight to 4.18 and 10.7 per 100,000 in obese 12-15 year old boys and girls respectively. Incidence rates under 7 years were similar in both sexes. From 7 years onwards, the incidence in girls was double that in boys, but only in overweight (including obese) children. In 12-15 year old children, an estimated 82% of the incidence of PTCS was attributable to obesity. Two subgroups of PTCS were apparent: 168 (91%) cases aged from 7 years frequently presented on medication and with headache, and were predominantly female and obese. The remaining 17 (9%) cases under 7 years often lacked these risk factors and commonly presented with new onset squint. Conclusions This uniquely largest population-based study of childhood PTCS will inform the design of future intervention studies. It suggests that weight reduction is central to the prevention of PTCS

    The Relationship Between Cumulative Unfair Treatment and Intima Media Thickness and Adventitial Diameter: The Moderating Role of Race in The Study of Women’s Health Across the Nation

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    Objective: Unfair treatment may have a detrimental effect on cardiovascular health. However, little research on chronic health outcomes employs cumulative measures of unfair treatment. We tested whether cumulative unfair treatment was associated with greater subclinical cardiovascular disease in a diverse sample of African American, Caucasian, Chinese, and Hispanic women. We also examined whether this relationship varied by race. Method: The Study of Women’s Health Across the Nation is a longitudinal study of midlife women. Cumulative unfair treatment was calculated as the average of unfair treatment assessed over 10 years at 6 time points. Subclinical cardiovascular disease, specifically carotid intima media thickness and adventitial diameter, was assessed via carotid ultrasound conducted at study year 12 in 1056 women. We tested whether cumulative unfair treatment was related to subclinical cardiovascular disease via linear regression, controlling for demographic factors including socioeconomic status and cardiovascular risk factors. Results: The relation between unfair treatment and subclinical cardiovascular disease significantly varied by race (ps \u3c .05), with unfair treatment related to higher intima media thickness (B = .03, SE = .01, p = .009) and adventitial diameter (B = .02, SE = .009, p = .013) among Caucasian women only. No significant relations between unfair treatment and subclinical cardiovascular disease outcomes were observed for African American, Hispanic, and Chinese women. Conclusions: Our findings indicate that cumulative unfair treatment is related to worse subclinical cardiovascular disease among Caucasian women. These findings add to the growing literature showing that Caucasian women’s experience of unfair treatment may have detrimental health implications

    Association of sexual harassment and sexual assault with midlife women’s mental and physical health

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    Importance: Sexual harassment and sexual assault are prevalent experiences among women. However, their association with health indices is less well understood. Objective: To investigate the association of history of sexual harassment and sexual assault with blood pressure, mood, anxiety, and sleep among midlife women. Design, setting, and participants: Nonsmoking women without cardiovascular disease were recruited from the community to undergo physical measurements (blood pressure, height, weight), medical history, and questionnaire psychosocial assessments (workplace sexual harassment, sexual assault, depression, anxiety, sleep). Exposures: Sexual harassment and sexual assault. Main outcomes and measures: Blood pressure, depressive symptoms, anxiety, and sleep characteristics. Results: Among the 304 nonsmoking women aged 40 to 60 years who participated in the study, all were free of clinical cardiovascular disease, and the mean (SD) age was 54.05 (3.99) years. A total of 19% reported a history of workplace sexual harassment (n = 58), and 22% reported a history of sexual assault (n = 67). Sexual harassment was related to significantly greater odds of stage 1 or 2 hypertension among women not taking antihypertensives (odds ratio [OR], 2.36; 95% CI, 1.10-5.06; P = .03) as well as clinically poor sleep (OR, 1.89; 95% CI, 1.05-3.42; P = .03), after adjusting for covariates. Sexual assault was associated with significantly greater odds of clinically elevated depressive symptoms (OR, 2.86; 95% CI, 1.42-5.77; multivariable P = .003), clinically relevant anxiety (OR, 2.26; 95% CI, 1.26-4.06; P = .006), and clinically poor sleep (OR, 2.15; 95% CI, 1.23-3.77; multivariable P = .007), after adjusting for covariates. Conclusions and relevance: Sexual harassment and sexual assault are prevalent experiences among midlife women. Sexual harassment was associated with higher blood pressure and poorer sleep. Sexual assault was associated with poorer mental health and sleep. Efforts to improve women's health should target sexual harassment and assault prevention

    The Relationship Between Cumulative Unfair Treatment and Intima Media Thickness and Adventitial Diameter: The Moderating Role of Race in The Study of Women’s Health Across the Nation

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    Objective: Unfair treatment may have a detrimental effect on cardiovascular health. However, little research on chronic health outcomes employs cumulative measures of unfair treatment. We tested whether cumulative unfair treatment was associated with greater subclinical cardiovascular disease in a diverse sample of African American, Caucasian, Chinese, and Hispanic women. We also examined whether this relationship varied by race. Method: The Study of Women’s Health Across the Nation is a longitudinal study of midlife women. Cumulative unfair treatment was calculated as the average of unfair treatment assessed over 10 years at 6 time points. Subclinical cardiovascular disease, specifically carotid intima media thickness and adventitial diameter, was assessed via carotid ultrasound conducted at study year 12 in 1056 women. We tested whether cumulative unfair treatment was related to subclinical cardiovascular disease via linear regression, controlling for demographic factors including socioeconomic status and cardiovascular risk factors. Results: The relation between unfair treatment and subclinical cardiovascular disease significantly varied by race (ps \u3c .05), with unfair treatment related to higher intima media thickness (B = .03, SE = .01, p = .009) and adventitial diameter (B = .02, SE = .009, p = .013) among Caucasian women only. No significant relations between unfair treatment and subclinical cardiovascular disease outcomes were observed for African American, Hispanic, and Chinese women. Conclusions: Our findings indicate that cumulative unfair treatment is related to worse subclinical cardiovascular disease among Caucasian women. These findings add to the growing literature showing that Caucasian women’s experience of unfair treatment may have detrimental health implications

    Effect of Local Norms on Racial and Ethnic Representation in Gifted Education

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    Educators have sought to understand and address the disproportional representation of students from certain student subgroups in gifted education. Most gifted identification decisions are made with national comparisons where students must score above a certain percentage of test takers. However, this approach is not always consistent with the overall goal of gifted education. Scholars have long argued for the use of local normative criteria to increase the diversity of students identified for gifted services, and although some districts across the country have applied such recommendations, little research has been carried out. In this study, we use a large data set to assess the extent to which identifying gifted students with either school-level norms or a combination of national and school-level norms would improve gifted education representation rates for students who are from African American and Latinx families. A preprint of this registered report and this project’s preregistration documentation are available at https://osf.io/z2egy/

    Influence of hormone therapy on the cardiovascular responses to stress of postmenopausal women

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    Abstract Epidemiological and psychophysiological data suggest that groups that differ in reproductive hormones and stress responses also differ in risk for cardiovascular disease. To evaluate the effects of hormone therapy on women's cardiovascular responses to laboratory stressors, 89 healthy postmenopausal women were tested twice, before and after exposure for about 8 weeks to one of the five conditions: placebo, Estratab (primarily estrone), Estratab plus Prometrium (micronized progesterone), Estratab plus Provera (synthetic progestin), and Estratest (same estrogen as in Estratab plus methyltestosterone). Results showed that women assigned to Estratab plus Prometrium and Estratest had diminished systolic blood pressure responses to stress upon retesting, whereas the other groups did not change in the level of their responses. Women assigned to Estratab plus Prometrium had diminished diastolic blood pressure responses during a speech stressor upon retesting, whereas women assigned to Estratab plus Provera increased. Our findings show that hormone therapy does affect women's stress responses, but they do not provide a simple explanation as to why groups at high and low risk for cardiovascular disease differ in reproductive hormones and stress responses.

    Relation of cardiovascular risk factors in women approaching menopause to menstrual cycle characteristics and reproductive hormones in the follicular and luteal phases

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    CONTEXT: Menstrual cycle characteristics may be associated with cardiovascular disease (CVD) risk. OBJECTIVE: The objective of this study was to describe the relationships between menstrual cycle characteristics and daily reproductive hormone measures with CVD risk factors in middle-aged women. DESIGN AND SETTING: Cross-sectional associations were examined between CVD risk factors and urinary LH, FSH, estrone conjugates, and pregnanediol glucuronide (Pdg) measured across one menstrual cycle or 50 d. PARTICIPANTS: Menstruating women (n = 500) who were free from diabetes or past stroke or heart attack enrolled in the Daily Hormone Study-Study of Women\u27s Health across the Nation were studied. MAIN OUTCOME MEASURES: Body mass index (BMI), blood pressure, hemostatic, and metabolic factors were measured. RESULTS: Few differences existed in risk factors between women with evidence of luteal activity and those with no evidence of luteal activity. Associations between elevated CVD risk factors and long cycle length were reduced substantially by age and BMI adjustments. Those with lower estrone conjugate and PdG averaged across the follicular phase had higher waist circumference, triglycerides, insulin, plasminogen activator inhibitor type-1, tissue type plasminogen activator-antigen, and factor VIIc levels in age- and BMI-adjusted analyses (P \u3c 0.05). CONCLUSIONS: In midlife menstruating women, a longer cycle length was related to CVD risk factors, in large part through their common association with BMI. More favorable levels of metabolic and hemostatic factors were associated with higher levels of follicular-phase estrogen, a pattern consistent with a more competent ovary, and higher levels of follicular-phase PdG, perhaps of adrenal origin. Metabolic and hemostatic factors may be sensitive to hormonal variation during the early perimenopausal transition
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