Publications by authors named "LC Johnson"

Qualitative research methods are central to understanding many public health problems. However, capacity building for qualitative research is globally skewed toward high-income countries, with a significant skills deficit in low- and middle-income countries (LMICs). To address this imbalance and provide a model program, we developed the Qualitative Research Leaders (QRL) program, a pipeline program to increase qualitative research capacity in LMIC institutions and foster leadership in qualitative research.

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Background: Depressive symptoms frequently co-occur with diabetes and, when unaddressed, can function to worsen diabetes control and increase the risk of diabetes-related morbidity. Integrated care (IC) approaches aim to improve outcomes among people with diabetes and depression, but there are no current meta-analyses examining their effects.

Purpose: In our study we summarize the effects of IC approaches to address depression and diabetes and examine moderating effects of IC approaches (e.

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Grasslands converted to agricultural land use can be reestablished by sowing seeds of native species and temporal dynamics of diversity under altered climate can inform community assembly in the context of global change. We quantified three aspects of diversity (species richness, phylogenetic diversity, and functional diversity) in restored prairie plots sown with different ecotypes of two dominant grass species and manipulated rainfall to understand the relative importance of abiotic filtering and population source of dominant species on community assembly. We also evaluated the contributions of intra- and interspecific variations in functional traits across plots sown with different ecotypes of dominant species.

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Article Synopsis
  • * Over a 20-year period, around 40% of initially normotensive patients eventually developed high blood pressure, indicating a troubling trend.
  • * The study highlights an urgent need for better healthcare integration to manage both HIV and high blood pressure, pointing to inadequate current systems and the necessity for further research and funding.
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Background: Atrial fibrillation is associated with an increased risk of cardiovascular hospitalization (CVH), which may be triggered by changes in daily burden. Machine learning of dynamic trends in atrial fibrillation burden, as measured by insertable cardiac monitors (ICMs), may be useful in predicting near-term CVH.

Methods: Using Optum's deidentified Clinformatics Data Mart Database (2007-2019), linked with the Medtronic CareLink ICM database, we identified patients with >1 days of ICM-detected atrial fibrillation.

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Background: HIV clinical guidelines recommend hypertension detection and management to lower cardiovascular disease risk, but these have not been effectively implemented for people living with HIV (PWH). Addressing this implementation gap requires community-engaged implementation studies focused on addressing implementation barriers specific to the HIV care context.

Methods: This protocol describes a type 2 effectiveness-implementation hybrid study conducted in nine primary care clinics in Johannesburg.

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  • The study analyzed changes in body mass index (BMI) and overweight prevalence from 2003-2019 in 10 African countries among people living with HIV (PLWH) and those without (PLWoH).
  • It found that while mean BMI increased over time for both groups, women LWH experienced a greater increase compared to women LWoH, whereas men LWoH saw a more significant rise than men LWH.
  • Although ART (antiretroviral therapy) coverage didn't show a strong link to BMI changes, the overall trends highlighted the need for BMI monitoring programs in PLWH due to rising BMI levels.
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Self-stigma-the internalization of negative community attitudes and beliefs about a disease or condition-represents an important barrier to improving patient care outcomes for people living with common mental disorders and diabetes. Integrated behavioral healthcare interventions are recognized as evidence-based approaches to improve access to behavioral healthcare and for improving patient outcomes, including for those with comorbid diabetes, yet their impact on addressing self-stigma remains unclear. Using secondary data from the Integrating Depression and Diabetes Treatment (INDEPENDENT) study-a trial that aimed to improve diabetes outcomes for people with undertreated and comorbid depression in four urban Indian cities via the Collaborative Care Model-we longitudinally analyzed self-stigma scores and evaluated whether change in total self-stigma scores on diabetes outcomes is mediated by depressive symptom severity.

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Background: Co-occurring physical and mental health conditions are common, but effective and sustainable interventions are needed for primary care settings.

Purpose: Our paper analyzes the effectiveness of a Solution-Focused Brief Therapy (SFBT) intervention for treating depression and co-occurring health conditions in primary care. We hypothesized that individuals receiving the SFBT intervention would have statistically significant reductions in depressive and anxiety symptoms, systolic blood pressure (SBP), hemoglobin A1C (HbA1c), and body mass index (BMI) when compared to those in the control group.

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Background: The burden of hypertension among people with HIV is high, particularly in low-and middle-income countries, yet gaps in hypertension screening and care in these settings persist. This study aimed to identify facilitators of and barriers to hypertension screening, treatment, and management among people with HIV in primary care clinics in Johannesburg, South Africa. Additionally, different stakeholder groups were included to identify discordant perceptions.

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Aim: Relationship-based interventions for neonatal intensive care unit families have potential to improve parent and infant outcomes; yet, their implementation has been modest within systems of care for high-risk newborns. The purpose of this paper is to describe a relationship-building intervention, the newborn behavioural observation system, summarise the evidence supporting its use, and address its clinical application for high-risk parent-infant dyads in the neonatal intensive care unit.

Methods: We summarise the extant literature describing the use of the newborn behavioural observation system in high-risk populations.

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Background: Heart failure and diabetes are comorbidities that disproportionately contribute to high morbidity and mortality among Blacks. Further compounding the racial and ethnic disparities in COVID-19 health outcomes, Blacks with cardiometabolic diseases are at high risk of experiencing serious complications or mortality from COVID-19. This study aimed to assess how Blacks with heart failure and diabetes navigated chronic care management during the COVID-19 pandemic.

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Objective: To describe and compare the recruitment methods employed in a randomized controlled trial targeting long-term care workers, and resulting participant baseline characteristics.

Design: We used a multifaceted recruitment process to enroll long-term care workers in our 3-arm randomized controlled trial comparing 2 interventions to enhanced usual practice, for improving COVID-19 vaccine confidence and other outcomes.

Setting And Participants: Adult long-term care workers living in the United States employed within the last 2 years were invited to join the study.

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Aims: The INtegrating DEPrEssioN and Diabetes treatmENT (INDEPENDENT) trial tested a collaborative care model including electronic clinical decision support (CDS) for treating diabetes and depression in India. We aimed to assess which features of this clinically and cost-effective intervention were associated with improvements in diabetes and depression measures.

Methods: Post-hoc analysis of the INDEPENDENT trial data (189 intervention participants) was conducted to determine each intervention feature's effect: 1.

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Background The burden of hypertension among people with HIV is high, particularly in low-and middle-income countries, yet gaps in hypertension screening and care in these settings persist. The objective of this study was to identify facilitators of and barriers to hypertension screening, treatment, and management among people with HIV seeking treatment in primary care clinics in Johannesburg, South Africa. Methods Using a cross-sectional study design, data were collected via interviews (n = 53) with people with HIV and hypertension and clinic managers and focus group discussions (n = 9) with clinic staff.

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Article Synopsis
  • * Deleting certain HDACs in embryonic stem cells (ESCs) unexpectedly reduces the expression of key pluripotency-related transcription factors despite HDACs being generally viewed as repressors.
  • * Inhibiting HDACs and the transcriptional activator BRD4 results in decreased expression of pluripotency genes, indicating that HDACs help maintain pluripotency by regulating enhancer activity and ensuring RNA polymerase II recruitment.
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Background: Vaccination serves as an efficient primary means of control for infectious diseases. However, in the case of the COVID-19 pandemic, pregnant women within the United States had the lowest rates of COVID-19 vaccination and reported the lowest intent to vaccinate.

Objectives: To explore the decision-making process for COVID-19 vaccination for people pregnant during the pandemic.

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Background: Health care organizations considering adopting a conversation aid (CA), a type of patient decision aid innovation, need information about the costs of implementation.

Objectives: The aims of this study were to: (1) calculate the costs of introducing a CA in a study of supported implementation in 5 gynecologic settings that manage individuals diagnosed with uterine fibroids and (2) estimate the potential costs of future clinical implementation efforts in hypothetical settings.

Research Design: We used time-driven activity-based costing to estimate the costs of CA implementation at multiple steps: integration with an electronic health record, preimplementation, implementation, and sustainability.

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NHR-85 is a poorly characterized nuclear hormone receptor transcription factor with an emerging role in regulating microRNA expression to control developmental timing. We generated the first NHR-85 translational fusion by knocking a cassette into the endogenous locus to tag all known isoforms. animals have wild-type broodsizes and NHR-85 ::GFP peaks in expression at the start of the L4 stage in epithelial cells.

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Background: Myocardial perfusion imaging is commonly performed using SPECT, where both general-purpose and dedicated scanners are available. A limitation with general-purpose systems has been the inability to image dynamically since different projections are obtained far apart in time due to scanner rotation. Dedicated systems can have this capability since they acquire completely sampled projections (i.

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Objectives: To identify and compare how sleep-related attitudes and beliefs vary among racially and ethnically diverse adults with risk factors for cardio-metabolic disease.

Methods: This exploratory qualitative study used online focus group discussions (N = 4 groups among 17 individuals) to collect information about sleep attitudes, beliefs, and practices following participation in the Mindfulness Intervention to Improve Sleep and Reduce Diabetes Risk Among a Diverse Sample in Atlanta (MINDS) study. A rapid analyses approach was used to identify shared themes related to attitudes and beliefs about sleep health and sleep practices across participants.

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  • This study develops a coarse-grained modeling approach for polymer melts by combining iterative Boltzmann inversion and a Langevin thermostat to accurately simulate dynamics across different timescales.
  • The research investigates two materials: squalane, which shows consistent friction and viscosity trends with temperature, and polystyrene oligomers, revealing varied friction behaviors based on chain length and measurement methods.
  • Findings indicate that time-dependent friction is necessary for a complete representation of atomistic dynamics during transitions between different diffusion regimes, particularly for longer polymer chains.
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