Publications by authors named "Frederick T"

Introduction: Decisions to disclose HIV serostatus may be complicated by internalised HIV stigma. We evaluated the association of internalised HIV stigma in biological mothers living with HIV with disclosure of their serostatus to their children perinatally HIV-exposed but uninfected (CHEU).

Methods: Mothers and their CHEU were enrolled in the United States (U.

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Understanding factors associated with internalized HIV-related stigma among mothers living with HIV may improve health outcomes. We examined factors (age, race/ethnicity, education, income, employment, marital status, health limitations, and years since HIV diagnosis) associated with internalized HIV-related stigma among biological mothers of children enrolled in the Surveillance Monitoring for ART Toxicities study of the US-based Pediatric HIV/AIDS Cohort Study. Stigma was measured with the Internalized HIV Stigma Scale (IHSS), completed biennially at their child's 11-17-year visits.

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Studies have observed neurodevelopmental (ND) challenges among young children perinatally HIV-exposed yet uninfected (CHEU) with in utero antiretroviral (ARV) exposure, without clear linkage to specific ARVs. Atazanavir (ATV) boosted with ritonavir has been a preferred protease inhibitor recommended for pregnant women, yet associations of ATV with ND problems in CHEU have been reported. Studies among early school-age children are lacking.

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Background: To collect and compare selected hearing measures in a pilot study of young adults with perinatally acquired HIV (YAPHIV) and those with perinatal HIV exposure who are uninfected young adults with PHEU (YAPHEU).

Setting: Cross-sectional hearing measures in YAPHIV and YAPHEU enrolled in the Pediatric HIV/AIDS Cohort Study Adolescent Master Protocol (AMP) for Participants 18 Years of Age and Older (AMP Up).

Methods: Pure-tone air conduction audiometry and distortion product otoacoustic emission (DPOAE) data were collected in 1 visit.

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The present study investigated the impact of differentiation of self as an emotion regulation strategy on work and family conflict, ministerial job satisfaction, and burnout for pastors. Specifically, does differentiation of self provide a psychological resource for pastors coping with the experience of burnout as emotional exhaustion, given the unique social context of the pastor's family and the role emotional labor has in causing burnout in social service professions? A unique aspect of the pastorate is the pastor's family's social context of living with the congregation. Due to this unique social context, work and family conflict were investigated as predictors of pastoral burnout.

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Generalist health interventions that aim to reduce chronic health disparities between Indigenous and non-Indigenous populations can be culturally adapted to better meet the needs of Indigenous people in Canada; however, little is known regarding best practices in implementing these adaptations. The present study first provides a review of the research process used to adapt a previous evidence-based housing initiative for Indigenous youth in Northwestern Ontario. Second, it includes an overview of the adaptations that were made and the associated rationale for such adaptations.

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Fragment-based drug discovery (FBDD) and validation of small molecule binders using NMR spectroscopy is an established and widely used method in the early stages of drug discovery. Starting from a library of small compounds, ligand- or protein-observed NMR methods are employed to detect binders, typically weak, that become the starting points for structure-activity relationships (SAR) by NMR. Unlike the more frequently used ligand-observed 1D NMR techniques, protein-observed 2D H-N or H-C heteronuclear correlation (HSQC or HMQC) methods offer insights that include the mechanism of ligand engagement on the target and direct binding affinity measurements in addition to routine screening.

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The current study examined the role of internalized HIV-related stigma in antiretroviral therapy adherence, viral load, and retention in care among women of color living with HIV in Los Angeles County, California. African American and Hispanic/Latino women 18 years of age and older completed a one-time brief survey between September 2017 and February 2018. Descriptive statistics, and univariable and multivariable logistic regressions were used to analyze the data.

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Background: There is a common belief that seniority and gender are associated with clinicians' perceptions of the value of electronic health record (EHR) technology and the propensity for burnout. Insufficient evidence exists on the relationship between these variables.

Objective: The aim of this study was to investigate how seniority/years of practice, gender, and screened burnout status are associated with opinions of EHR use on quality, cost, and efficiency of care.

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Since the emergency approval of several therapeutic coronavirus disease 2019 (COVID-19) vaccines in the United States, >500 million doses have been administered. However, there have been disparities in vaccine acceptability and uptake. We examined demographic, human immunodeficiency virus (HIV) disease, and psychosocial factors associated with COVID-19 vaccine acceptability in older adults (≥50 years) living with HIV in the Coachella Valley, California.

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Protein-protein and protein-nucleic acid interactions are often considered difficult drug targets because the surfaces involved lack obvious druggable pockets. Cryptic pockets could present opportunities for targeting these interactions, but identifying and exploiting these pockets remains challenging. Here, we apply a general pipeline for identifying cryptic pockets to the interferon inhibitory domain (IID) of Ebola virus viral protein 35 (VP35).

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One challenging aspect of working in early childhood education settings is engagement in emotional labor. Research suggests that emotional labor is associated with emotional exhaustion and burnout in early childhood teachers, but there is limited research available on this issue. Research focusing on early childhood contexts in the United States is especially limited.

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We report a machine learning approach to accurately correlate the impedance variations in zinc oxide/multi walled carbon nanotube nanocomposite (F-MWCNT/ZnO-NFs) to NH ions concentrations. Impedance response of F-MWCNT/ZnO-NFs nanocomposites with varying ZnO:MWCNT compositions were evaluated for its sensitivity and selectivity to NH ions in the presence of structurally similar analytes. A decision-making model was built, trained and tested using important features of the impedance response of F-MWCNT/ZnO-NF to varying NH concentrations.

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Understanding the functional role of protein-excited states has important implications in protein design and drug discovery. However, because these states are difficult to find and study, it is still unclear if excited states simply result from thermal fluctuations and generally detract from function or if these states can actually enhance protein function. To investigate this question, we consider excited states in β-lactamases and particularly a subset of states containing a cryptic pocket which forms under the Ω-loop.

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Housing stability is a complex concept to measure. One set of factors under consideration are those based on a personal or subjective sense of stability. We explore the variables associated with subjective stability and explore how subjective stability relates to housing stability across time.

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Background: All healthcare institutions prioritize falls as a major safety issue. Falls are of particular concern on inpatient oncology units where patients are substantially at risk for injury related to falls.

Objectives: This article describes a multifaceted fall-prevention initiative that can be implemented on oncology units using evidence-based interventions in the key areas of communication, toileting, and hourly rounding.

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There is a high prevalence of Indigenous youth experiencing either precarious housing or homelessness in northwestern Ontario. Given that Indigenous pathways to homelessness can differ from non-Indigenous youth, interventions that address homelessness must also adapt to meet diverse needs. The Housing Outreach Program Collaborative (HOP-C) is a tertiary prevention intervention designed to provide congruent housing and peer and mental health supports for youth experiencing homelessness in Toronto, Ontario.

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The functional mechanisms of multidomain proteins often exploit interdomain interactions, or "cross-talk." An example is human Pin1, an essential mitotic regulator consisting of a Trp-Trp (WW) domain flexibly tethered to a peptidyl-prolyl isomerase (PPIase) domain, resulting in interdomain interactions important for Pin1 function. Substrate binding to the WW domain alters its transient contacts with the PPIase domain via means that are only partially understood.

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Little is known regarding the specific types of service models and collaborations that are necessary to support diverse populations of youth in transition out of homelessness. Transitional supports addressing the complex needs of this population are needed to stabilize the array of housing arrangements that youth access. This study was a pilot randomized controlled trial of one such critical time intervention, called the Housing Outreach Program-Collaboration (HOP-C).

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Background: CMV infection of the fetus or neonate can lead to devastating disease, and there are no effective prevention strategies to date. Vitamin D is a potent immunomodulator, supports antiviral immune responses, and plays an important role in placental immunity.

Methods: Retrospective cohort study to evaluate the impact of low maternal vitamin D on congenital and early postnatal transmission of CMV among HIV-infected, non-breastfeeding women and their HIV exposed but negative infants from an urban HIV clinic.

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The automated low-flow ascites pump (alfapump) is an implantable device that drains ascites directly into the urinary bladder. We studied its safety (absence of serious complications) and efficacy (decreased large-volume paracentesis [LVP] requirement and improved quality of life [QoL]) in the management of ascites in a cohort of North American patients with cirrhosis and recurrent ascites ineligible for transjugular intrahepatic portosystemic shunt (TIPS). QoL was measured by the Chronic Liver Disease Questionnaire (CLDQ) and Ascites Questionnaire (Ascites Q).

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Severe fever with thrombocytopenia syndrome virus (SFTSV) is a tick-borne virus with 12%-30% case mortality rates and is related to the Heartland virus (HRTV) identified in the United States. Together, SFTSV and HRTV are emerging segmented, negative-sense RNA viral (sNSV) pathogens with potential global health impact. Here, we characterize the amino-terminal cap-snatching endonuclease domain of SFTSV polymerase (L) and solve a 2.

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Background: Global immune activation and HLA alleles are each associated with the pathogenesis of human immunodeficiency virus (HIV) and hepatitis C virus .

Methods: We evaluated the relationship between 44 HLA class I and 28 class II alleles and percentages of activated CD8 (CD8+CD38+DR+) and CD4 (CD4+CD38+DR+) T cells in 586 women who were naive to highly active antiretroviral therapy. We used linear generalized estimating equation regression models, adjusting for race/ethnicity, age, HIV load, and hepatitis C virus infection and controlling for multiplicity using a false discovery rate threshold of 0.

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Objectives: To estimate birth prevalence of congenital cytomegalovirus (cCMV) in HIV-exposed uninfected children born in the current era of combination antiretroviral therapy and describe cCMV-related neurodevelopmental and hearing outcomes.

Study Design: The Surveillance Monitoring for ART Toxicities cohort study follows HIV-exposed uninfected children at 22 sites in the US and Puerto Rico. Birth cCMV prevalence was estimated in a subset of participants who had blood pellets collected within three weeks of birth and underwent ≥1 of 6 assessments evaluating cognitive and language development including an audiologic examination between 1 and 5 years of age.

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Objective: To examine the association of vitamin D insufficiency and risk of pregnancy-induced hypertension (PIH) among human immunodeficiency virus (HIV)-infected pregnant women.

Study Design: This is a retrospective cohort study evaluating the impact of low maternal vitamin D levels on PIH and perinatal outcomes among HIV-infected pregnant women receiving care at an urban HIV center from 1991 to 2014.

Results: A total of 366 pregnant women were included, of which 11% developed PIH.

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