Faculty Bibliography

Women with a history of sexual violence may face obstacles to obtaining preventive health services. Group education models have been used in other settings to improve knowledge and uptake of care. Focus groups were conducted to solicit the concerns and input of the subject population. Interdisciplinary group education sessions (GESs) were designed specifically to address concerns voiced in focus groups. GESs were conducted, addressing mammograms, pelvic examinations, and menopause, and emphasized preventive health education, as well as shared decision-making. GESs were audio recorded and qualitative feedback was collected immediately after each GES. Surveys were administered before and after each GES to evaluate attitude and knowledge change. A total of 18 women attended the focus groups, and 27 women attended at least one GES, with 12 women attending both. GESs were well received, and participants cited the education, group support, and healing dynamic as benefits of participation. Content knowledge improved after all three GESs. Attitude change showed a trend toward improvement, but the sample size was not large enough to detect statistical significance. Group education is an acceptable and feasible model among survivors of sexual violence. GESs improved knowledge among this small group of participants. GESs could be made available in a wide range of topics, as requested by our participants. Larger studies are warranted to examine long-term knowledge and attitude change after GESs.

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.

Substantial evidence has established that individual differences in executive function (EF) in early childhood are uniquely predictive of children's academic readiness at school entry. The current study tested whether growth trajectories of EF across the early childhood period could be used to identify a subset of children who were at pronounced risk for academic impairment in kindergarten. Using data that were collected at the age 3, 4, and 5 home assessments in the Family Life Project (N = 1,120), growth mixture models were used to identify 9% of children who exhibited impaired EF performance (i.e., persistently low levels of EF that did not show expected improvements across time). Compared to children who exhibited typical trajectories of EF, the delayed group exhibited substantial impairments in multiple indicators of academic readiness in kindergarten (Cohen's ds = 0.9-2.7; odds ratios = 9.8-23.8). Although reduced in magnitude following control for a range of socioeconomic and cognitive (general intelligence screener, receptive vocabulary) covariates, moderate-sized group differences remained (Cohen's ds = 0.2-2.4; odds ratios = 3.9-5.4). Results are discussed with respect to the use of repeated measures of EF as a method of early identification, as well as the resulting translational implications of doing so.

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 corrects the article DOI: 10.1038/srep45040.

SNARE proteins are the core of the cell's fusion machinery and mediate virtually all known intracellular membrane fusion reactions on which exocytosis and trafficking depend. Fusion is catalyzed when vesicle-associated v-SNAREs form trans-SNARE complexes ("SNAREpins") with target membrane-associated t-SNAREs, a zippering-like process releasing ∼65 kT per SNAREpin. Fusion requires several SNAREpins, but how they cooperate is unknown and reports of the number required vary widely. To capture the collective behavior on the long timescales of fusion, we developed a highly coarse-grained model that retains key biophysical SNARE properties such as the zippering energy landscape and the surface charge distribution. In simulations the ∼65-kT zippering energy was almost entirely dissipated, with fully assembled SNARE motifs but uncomplexed linker domains. The SNAREpins self-organized into a circular cluster at the fusion site, driven by entropic forces that originate in steric-electrostatic interactions among SNAREpins and membranes. Cooperative entropic forces expanded the cluster and pulled the membranes together at the center point with high force. We find that there is no critical number of SNAREs required for fusion, but instead the fusion rate increases rapidly with the number of SNAREpins due to increasing entropic forces. We hypothesize that this principle finds physiological use to boost fusion rates to meet the demanding timescales of neurotransmission, exploiting the large number of v-SNAREs available in synaptic vesicles. Once in an unfettered cluster, we estimate ≥15 SNAREpins are required for fusion within the ∼1-ms timescale of neurotransmitter release.

BACKGROUND:Diffusion tensor imaging measures of white matter (WM) microstructural integrity appear to provide earlier indication of WM injury than WM hyperintensities; however, risk factors for poor WM microstructural integrity have not been established. Our study quantifies the association between vascular risk factors in midlife and late life with measures of late-life WM microstructural integrity. METHODS AND RESULTS/RESULTS:We used data from 1851 participants in ARIC (Atherosclerosis Risk in Communities Study) who completed 3-T magnetic resonance imaging, including diffusion tensor imaging, as part of the ARIC Neurocognitive Study (ARIC-NCS). We quantified the association among lipids, glucose, and blood pressure from the baseline ARIC visit (1987-1989, ages 44-65, midlife) and visit 5 of ARIC (2011-2013, ages 67-90, late life, concurrent with ARIC-NCS) with regional and overall WM mean diffusivity and fractional anisotropy obtained at ARIC visit 5 for ARIC participants. We also considered whether these associations were independent of or modified by WM hyperintensity volumes. We found that elevated blood pressure in midlife and late life and elevated glucose in midlife, but not late life, were associated with worse late-life WM microstructural integrity. These associations were independent of the degree of WM hyperintensity, and the association between glucose and WM microstructural integrity appeared stronger for those with the least WM hyperintensity. There was little support for an adverse association between lipids and WM microstructural integrity. CONCLUSIONS:Hypertension in both midlife and late life and elevated glucose in midlife are related to worse WM microstructural integrity in late life.

BACKGROUND AND OBJECTIVES/OBJECTIVE:CKD is an important risk factor for cardiovascular disease (CVD) and death. We investigated whether select urine kidney injury biomarkers were associated with higher risk of heart failure (HF), CVD, and death in persons with CKD enrolled in the Chronic Renal Insufficiency Cohort (CRIC) Study. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS/METHODS:) all-cause death. RESULTS:d-glucosaminidase/Cr was associated with HF in continuous analyses (aHR per log SD higher 1.18 [95% confidence interval, 1.01 to 1.38]). Only KIM-1/Cr was independently associated with atherosclerotic CVD events (aHR per log SD higher 1.21 [95% confidence interval, 1.02 to 1.41]), whereas both KIM-1/Cr (quintile 5 versus quintile 1 aHR of 1.56 [95% confidence interval, 1.06 to 2.31]) and neutrophil gelatinase-associated lipocalin/Cr (quintile 5 versus quintile 1 aHR of 1.82 [95% confidence interval, 1.19 to 2.8]) were associated with all-cause death. CONCLUSIONS:Selected urine kidney injury biomarkers were independently associated with higher risk of HF, CVD events, and death in CRIC. Among the biomarkers examined, only KIM-1/Cr was associated with each outcome. Further work is needed to determine the utility of these biomarkers to improve risk prediction for these adverse outcomes.

: Research suggests that language predicts executive function (EF) in the preschool period; however, the relation between language and EF in the transition to formal schooling has not been previously examined. Given that language and EF are both important for school readiness, it is valuable to examine the ways in which they may be interrelated during the start of formal schooling. Research and theory suggest that expressive language in particular may be bidirectionally related to EF. To test this hypothesis, we analysed data from five- and six-year-old children (N = 347) who completed measures of expressive vocabulary and EF in the fall and spring of kindergarten and the fall of first grade. Path analysis revealed significant cross-lagged paths between EF and expressive vocabulary in kindergarten and from kindergarten into first grade, above and beyond stability in these constructs. The findings are discussed in relation to the current understanding of the relation between language and EF and the best ways in which to support and promote school readiness and early school achievement.

Purpose of Review Advances in medical therapy have resulted in a growing population of older adults with advanced heart failure. Frailty is a clinical syndrome that increases in prevalence with age and is highly prevalent in patients with heart failure. This paper reviews the complex relationship between frailty and advanced systolic heart failure in older adults, including the potential for reversal of frailty following advanced cardiac interventions. Recent Findings Frailty is predictive of adverse outcomes, including rehospitalization and mortality, in heart failure patients. Several small studies have shown that mechanical circulatory support can modify, and possibly reverse, functional impairments and the pathophysiologic changes associated with heart failure-related frailty. Summary Frailty is highly prevalent in patients with advanced heart failure and is a powerful prognostic marker. Routine frailty assessment could allow clinicians to define optimal patient-centered care strategies for older adult patients with advanced heart failure.