Faculty Bibliography

Personality disorder and personality pathology encompass a dimension of psychological dysfunction known to severely impact multiple domains of functioning. However, there is a notable dearth of research regarding both the pervasiveness and correlates of personality pathology among young sexual minority males who themselves experience heightened mental health burdens. Using the self-report version of the Standardized Assessment of Personality-Abbreviated Scale we tested associations between distinct personality characteristics with sociodemographic and psychosocial factors as well as mental health states in a sample of 528 young (aged 21-25 years) sexual minority men. In multivariate analysis, personality traits varied significantly by race/ethnicity. Personality traits were also positively associated with psychosocial states, specifically, internalized anti-homosexual bias, level of connection with the gay community, and male body dissatisfaction, as well as mental health in the form of recent depressive and anxious symptomatology. These findings support the complex synergy which exists between personality characteristics, psychosocial conditions, and mental health burdens present among sexual minority men and support the need for an all-encompassing approach to both the study and care of this population that addresses the influences of both internal and external factors on well-being.

Recent studies have examined sleep health among men who have sex with men (MSM), but no studies have examined associations of neighborhood characteristics and sleep health among this population. The purpose of this study was to examine associations between perceived neighborhood safety and sleep health among a sample of MSM in Paris, France. We placed broadcast advertisements on a popular smartphone application for MSM in October 2016 to recruit users in the Paris (France) metropolitan area (n = 580). Users were directed to complete a web-based survey, including previously used items measuring perceptions of neighborhood safety, validated measures of sleep health, and socio-demographics. Modified Poisson models were used to estimate risk ratios (RRs) and 95% confidence intervals (CI) for the associations between perceived neighborhood safety and the following outcomes: (1) poor sleep quality, (2) short sleep duration, and (3) self-reported sleep problems. Poor sleep health was common in our sample; e.g., 30.1% reported poor sleep quality and 44.7% reported problems falling asleep. In multivariate regression models, perceived neighborhood safety was associated with poor sleep quality, short sleep duration, and having sleep problems. For example, reporting living in a neighborhood perceived as unsafe during the daytime (vs. safe) was associated with poor sleep quality (aRR, 1.60; 95% CI, 1.01, 2.52), short sleep duration (aRR, 1.92; 95% CI, 1.26, 2.94), problems falling asleep (aRR, 1.57; 95% CI, 1.17, 2.11), and problems staying awake in the daytime (aRR, 2.16; 95% CI, 1.05, 4.43). Interventions to increase neighborhood safety may improve sleep health among MSM.

AIMS/HYPOTHESIS:Insulin resistance is frequently associated with hypertension and type 2 diabetes. The cytochrome P450 (CYP) arachidonic acid epoxygenases (CYP2C, CYP2J) and their epoxyeicosatrienoic acid (EET) products lower blood pressure and may also improve glucose homeostasis. However, the direct contribution of endogenous EET production on insulin sensitivity has not been previously investigated. In this study, we tested the hypothesis that endogenous CYP2C-derived EETs alter insulin sensitivity by analysing mice lacking CYP2C44, a major EET producing enzyme, and by testing the association of plasma EETs with insulin sensitivity in humans. METHODS:mice using hyperinsulinaemic-euglycaemic clamps and isolated skeletal muscle. Insulin secretory function was assessed using hyperglycaemic clamps and isolated islets. Vascular function was tested in isolated perfused mesenteric vessels. Insulin sensitivity and secretion were assessed in humans using frequently sampled intravenous glucose tolerance tests and plasma EETs were measured by mass spectrometry. RESULTS:vessels (maximal response 39.3 ± 6.5% of control, p < 0.001), suggesting that impaired vascular reactivity produces impaired insulin sensitivity in vivo. Similarly, plasma EETs positively correlated with insulin sensitivity in human participants. CONCLUSIONS/INTERPRETATION:CYP2C-derived EETs contribute to insulin sensitivity in mice and in humans. Interventions to increase circulating EETs in humans could provide a novel approach to improve insulin sensitivity and treat hypertension.

This study compared knowledge and compliance with traffic signs among young commercial motorcyclists in rural and urban communities in Oyo state, Nigeria. Information on knowledge and compliance with 10 common traffic signs was obtained from 149 rural and 113 urban commercial motorcyclists aged 18-35 years. Aggregate knowledge scores were computed and categorized as good (≥5) and poor (<5) knowledge. Overall, 98.7% rural versus 61.1% urban motorcyclists had poor knowledge of traffic signs (p < 0.05). After controlling for age, level of education and years of commercial riding, motorcyclists in the rural areas were more likely to have poor knowledge of the traffic signs (OR = 58.15; 95% CI = 11.96-282.79). A higher proportion of rural than urban motorcyclists never obeyed any of the traffic signs. Young rural commercial motorcyclists' knowledge and compliance with the road signs was poorer than their urban counterparts. Interventions to improve the rural motorcyclists' knowledge and ultimately compliance with road signs are urgently required.

Objective: With the growing use of robotic surgery, there is an increased occurrence of port-site hernias requiring operative intervention. Currently there is limited literature, and prior studies have failed to find surgical or patient-related risk factors. We sought to identify patient and surgical risk factors, evaluate clinical presentation, and report management of this postoperative complication at a high-volume multispecialty robotic surgical center. Method: All robotic surgeries performed at a single institution from September 1, 2010, to September 1, 2015, were included. Univariate analysis was used to compare patient demographics and medical conditions for those who did and did not develop port-site hernias. Results: A total of 4,858 robotic surgeries were completed during the study period. A total of 37 (0.7%) port-site hernias requiring operative intervention were identified following urologic (23/1,888, 1.2%), gynecologic (13/2,661, 0.5%), and general surgery (1/309, 0.3%) procedures. Hernias occurred at the umbilical (n = 23) and 8-mm lateral port sites (n = 14). Only umbilical ports were closed under direct visualization. Median time from surgery to hernia diagnosis was 201 days (range 2-975). Presentation included bulge symptoms (n = 29) and nausea/vomiting (n = 6). The herniated contents included bowel/omentum (n =19), fat (n =14), or empty sac (n = 4). All cases were managed surgically, 21 with laparoscopy and 16 with laparotomy, with presentation within 30 days necessitating urgent surgery (n = 6). A total of 7/37 patients had complications from reoperation (bowel resection, n = 3; abscess formation, n=2; blood transfusion, n = 1). There was no difference between patients who did and did not develop a port-site hernia with regards to age, gender, BMI, smoking status, hypertension, diabetes, rheumatologic disease, HIV, prior hernia, or cancer diagnosis. (See Table 1.) Conclusion: Port-site hernias necessitating operative intervention following robotic surgery are rare, occurring in 0.7% of patients in our cohort. We found no patient or surgical variable to be predictive of this complication. Hernias occurred at both the umbilical and lateral ports. Despite needing a second surgery, all patients recovered and did not suffer significant long-term morbidity

This study examined mother- and teacher-rated internalizing behaviors (i.e., anxiety, depression, and somatization symptoms) among young children using longitudinal data from a community sample of 661 Mexican and Dominican families and tested a conceptual model in which parenting (mother's socialization messages and parenting practices) predicted child internalizing problems 12 months later. Children evidenced elevated levels of mother-rated anxiety at both time points. Findings also supported the validity of the proposed parenting model for both Mexican and Dominican families. Although there were different pathways to child anxiety, depression, and somatization among Mexican and Dominican children, socialization messages and authoritarian parenting were positively associated with internalizing symptoms for both groups.

BACKGROUND:Cardiovascular disease (CVD) is the leading cause of mortality worldwide, with >80% of CVD deaths occurring in low and middle income countries (LMICs). Diabetes mellitus and pre-diabetes are risk factors for CVD, and CVD is the major cause of morbidity and mortality among individuals with DM. There is a critical period now during which reducing CVD risk among individuals with diabetes and pre-diabetes may have a major impact. Cost-effective, culturally appropriate, and context-specific approaches are required. Two promising strategies to improve health outcomes are group medical visits and microfinance. METHODS/DESIGN/METHODS:This study tests whether group medical visits integrated into microfinance groups are effective and cost-effective in reducing CVD risk among individuals with diabetes or at increased risk for diabetes in western Kenya. An initial phase of qualitative inquiry will assess contextual factors, facilitators, and barriers that may impact integration of group medical visits and microfinance for CVD risk reduction. Subsequently, we will conduct a four-arm cluster randomized trial comparing: (1) usual clinical care, (2) usual clinical care plus microfinance groups only, (3) group medical visits only, and (4) group medical visits integrated into microfinance groups. The primary outcome measure will be 1-year change in systolic blood pressure, and a key secondary outcome measure is 1-year change in overall CVD risk as measured by the QRISK2 score. We will conduct mediation analysis to evaluate the influence of changes in social network characteristics on intervention outcomes, as well as moderation analysis to evaluate the influence of baseline social network characteristics on effectiveness of the interventions. Cost-effectiveness analysis will be conducted in terms of cost per unit change in systolic blood pressure, percent change in CVD risk score, and per disability-adjusted life year saved. DISCUSSION/CONCLUSIONS:This study will provide evidence regarding effectiveness and cost-effectiveness of interventions to reduce CVD risk. We aim to produce generalizable methods and results that can provide a model for adoption in low-resource settings worldwide.