Faculty Bibliography

Introduction/UNASSIGNED:Our team conducted a cluster randomized controlled trial (DUET) that compared the effectiveness of three theory-driven, implementation strategies on dental provider adherence to tobacco dependence treatment guidelines (TDT). In this paper we describe the process of adapting the implementation strategies to the local context of participating dental public health clinics in New York City. Methods/UNASSIGNED:Eighteen dental clinics were randomized to one of three study arms testing several implementation strategies: Current Best Practices (CBP) (i.e. staff training, clinical reminder system and Quitline referral system); CBP + Performance Feedback (PF) (i.e. feedback reports on provider delivery of TDT); and CBP + PF + Pay-for-Performance (i.e. financial incentives for provision of TDT). Through an iterative process, we used Stirman's modification framework to classify, code and analyze modifications made to the implementation strategies. Results/UNASSIGNED:We identified examples of six of Stirman's twelve content modification categories and two of the four context modification categories. Content modifications were classified as: tailoring, tweaking or refining (49.8%), adding elements (14.1%), departing from the intervention (9.3%), loosening structure (4.4%), lengthening and extending (4.4%) and substituting elements (4.4%). Context modifications were classified as those related to personnel (7.9%) and to the format/channel (8.8%) of the intervention delivery. Common factors associated with adaptations that arose during the intervention included staff changes, time constraints, changes in leadership preferences and functional limitations of to the Electronic Dental Record. Conclusions/UNASSIGNED:This study offers guidance on how to capture intervention adaptation in the context of a multi-level intervention aimed at implementing sustainable changes to optimize TDT in varying public health dental settings.

In this article, we discuss a case in which a 16-year-old birth-assigned male came out to her parents as transgender. She is referred to the gender management program at a large pediatric academic center to discuss hormone therapy. She was initially evaluated by a psychiatrist, diagnosed with gender dysphoria and anxiety, and treated with medication and psychotherapy. When her anxiety was well controlled and she met eligibility and readiness criteria, she was referred to 1 of 2 pediatric endocrinologists in the gender management program to discuss hormone therapy. As part of the discussion about the risks/benefits of estrogen therapy, the pediatric endocrinologist discussed options for fertility preservation (FP) before potentially gonadotoxic therapy. The patient stated that she was not interested in FP. Her mother requested procedures to preserve the possibility that the daughter could have biological children someday. We asked experts in the care of transgender youth to discuss ways in which the doctor could respond to this disagreement between parents and a teenager about FP.

DPP (dipeptidyl peptidase)-4 inhibitors are antidiabetic drugs that may increase heart failure in high-risk patients. NPY (neuropeptide Y) is coreleased with norepinephrine, causes vasoconstriction via the Y1 receptor, and is degraded by DPP4 to NPY (3-36) in vitro. NPY (3-36) decreases release of norepinephrine via the Y2 receptor. We tested the hypothesis that DPP4 inhibition would potentiate the vasoconstrictor effect of NPY. Eighteen nonsmokers (12 healthy controls and 6 with type 2 diabetes mellitus) participated in 1 of 2 randomized, double-blind, placebo-controlled crossover studies. First, subjects were randomized to order of treatment with sitagliptin 100 mg/d versus placebo for 7 days separated by 4-week washout. On the last day of treatment, NPY was infused by brachial artery and forearm blood flow was measured using plethysmography. Blood samples were collected after each dose. NPY infusions were repeated after 90-minute washout and intra-arterial enalaprilat. Second, 5 healthy subjects were randomized to crossover treatment with sitagliptin 100 mg/d plus valsartan 160 mg/d versus placebo plus valsartan. NPY infusions were performed on the seventh day of treatment. NPY caused dose-dependent vasoconstriction. During enalaprilat, sitagliptin significantly potentiated NPY-induced vasoconstriction in controls and diabetics ( P≤0.02 for forearm blood flow in either group). Baseline norepinephrine release was increased during sitagliptin and enalaprilat, but not further by NPY. Sitagliptin increased the ratio of NPY to NPY (3-36). During valsartan, sitagliptin also significantly potentiated NPY-induced vasoconstriction ( P=0.009 for forearm blood flow). Potentiation of endogenous NPY could contribute to cardiovascular effects of DPP4 inhibitors in patients taking an angiotensin-converting enzyme inhibitor or angiotensin receptor blocker.

Considering the vast ongoing challenge of preventing obesity, the time has come to reconceptualize and change the way we study the development of obesity in childhood. The developmental cascade model, which refers to the cumulative consequences and spreading downstream effects of risk and protective factors, offers a longitudinal framework for understanding obesity. This perspective elucidates the way an accumulation of risk factors, across and within biopsychosocial spheres and phases of development, can propel individuals toward obesity. In this article, we use a theory-driven model-building approach and a review of published literature to propose a developmental cascade model of pediatric obesity focused on proximal biopsychosocial influences (e.g., genetic, intrapersonal, familial). A two-stage scoping review conducted in January 2015 and May 2016 identified 1315 unique studies; 310 were included in the final review. The proposed developmental cascade model provides a basis for testing hypothesized cascades with multiple intervening variables and complex longitudinal processes. Moreover, the model informs future research by resolving seemingly contradictory findings on pathways to obesity previously thought to be distinct (low self-esteem, consuming sugary foods, and poor sleep cause obesity) that are actually processes working together over time (low self-esteem causes consumption of sugary foods which disrupts sleep quality and contributes to obesity). The resultant empirical findings of such inquiries are highly informative for identifying the timing and specific targets of preventive interventions across and within developmental phases. The implications of such a cascade model of pediatric obesity for health psychology and developmental and prevention sciences are discussed.

African Americans carrying two apolipoprotein L1 gene (APOL1) renal risk variants have a high risk for nephropathy. However, only a minority develops end-stage renal disease (ESRD). Hence, modifying factors likely contribute to initiation of kidney disease such as endogenous (HIV infection) or exogenous (interferon treatment) environmental modifiers. In this report, genome-wide association studies and a meta-analysis were performed to identify novel loci for nondiabetic ESRD in African Americans and to detect genetic modifiers in APOL1-associated nephropathy. Two African American cohorts were analyzed, 1749 nondiabetic ESRD cases and 1136 controls from Wake Forest and 901 lupus nephritis (LN)-ESRD cases and 520 controls with systemic lupus erythematosus but lacking nephropathy from the LN-ESRD Consortium. Association analyses adjusting for APOL1 G1/G2 renal-risk variants were completed and stratified by APOL1 risk genotype status. Individual genome-wide association studies and meta-analysis results of all 2650 ESRD cases and 1656 controls did not detect significant genome-wide associations with ESRD beyond APOL1. Similarly, no single nucleotide polymorphism showed significant genome-wide evidence of an interaction with APOL1 risk variants. Thus, although variants with small individual effects cannot be ruled out and are likely to exist, our results suggest that APOL1-environment interactions may be of greater clinical importance in triggering nephropathy in African Americans than APOL1 interactions with other single nucleotide polymorphisms.

INTRODUCTION/BACKGROUND:We sought to characterize the effects of PSA registry errors on clinical research by comparing cohorts based on cancer registry PSA values with those based directly on results in the electronic health record. METHODS:We defined example cohorts of men with prostate cancer using data from the Veterans Health Administration: those with a PSA values less than 4.0 ng/mL, 4.0 to 10.0 ng/mL, 10.0 to 20.0 ng/mL, and 20.0 to 98.0 ng/mL. We compared the composition of each cohort and overall patient survival when using PSA values from either the VA Central Cancer Registry versus the gold standard electronic health record laboratory file results. RESULTS:There was limited agreement between cohorts defined using either the cancer registry PSA values versus the laboratory file of the electronic health record. The least agreement was seen in patients with PSA values < 4.0 ng/mL (58%) and greatest among patients with PSA values between 4.0 and 10.0 ng/mL (89%). In each cohort, patients assigned to a cohort based only on the cancer registry PSA value had significantly different overall survival when compared with patients assigned based on both the registry and laboratory file PSA values. CONCLUSIONS:Cohorts based exclusively on cancer registry PSA values may have high rates of misclassification that can introduce concerning differences in key characteristics and result in measurable differences in clinical outcomes.

Socioeconomic status (SES) is a fundamental cause of ill health, but an understudied determinant of health for gay, bisexual, and other men who have sex with men (MSM). Surprisingly, few studies have examined the relations between poverty and depression among young MSM. The aims of this study were to determine the reliability and validity of an 18-item Family Resource Scale (FRS) as a measure of SES among YMSM and examine the relations between SES and depression, while taking into account factors associated with resilience or risk for poor mental health. Reliability of the SES scale was determined with Cronbach's alpha. Validity was assessed with factor analysis and bivariable comparisons with other SES measures. Multiple logistic regression was used to determine the relations between depressive symptomology (via the Beck Depression Inventory-II), SES, and gay-related psychosocial variables. In this racially/ethnically diverse sample (mean age = 21.8 years, 37.3% Hispanic/Latino, 30.5% White, 14.9% Black, and 17.0% other race/ethnicity), 70.8% reported incomes