Publications by authors named "Robert Carroll"

Summary: With the rapid growth of genetic data linked to electronic health record (EHR) data in huge cohorts, large-scale phenome-wide association study (PheWAS) have become powerful discovery tools in biomedical research. PheWAS is an analysis method to study phenotype associations utilizing longitudinal EHR data. Previous PheWAS packages were developed mostly with smaller datasets and with earlier PheWAS approaches.

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  • A case study of a 101-year-old man highlighted an unusual macular hole (MH) linked to choroidal cavitation in a nonmyopic eye, alongside secondary choroidal neovascularization (CNV).
  • The patient showed a yellow-orange lesion with a white center and some hemorrhage, identified through fundus examination and optical coherence tomography.
  • Treatment with an intravitreal injection of antivascular endothelial growth factor led to a positive outcome, suggesting that choroidal cavitary conditions can occur outside typical profiles and may be visually significant.
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Study Objectives: To evaluate efficacy of vibrotactile positional therapy (PT) compared to standard CPAP therapy in mild-to-moderate positional obstructive sleep apnea (pOSA).

Methods: Prospective crossover randomized controlled trial of adult patients with treatment-naïve, symptomatic, mild-to-moderate pOSA - defined as ≥5 total apnea-hypopnea index (AHI) <30 with supine-to-non-supine (s:ns)AHI ratio ≥2. Participants were randomized to in-laboratory treatment initiation polysomnography with either PT or CPAP on sequential nights before an eight-week trial of each therapy.

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Aims: There are limited data to support direct oral anticoagulant (DOAC) use in patients with hypertrophic cardiomyopathy (HCM) and non-valvular atrial fibrillation (NVAF). The current study investigated the safety and effectiveness of DOACs versus warfarin in patients in Japan.

Methods: This retrospective observational study assessed a Japanese cohort of patients diagnosed with HCM and NVAF between July 2011 and June 2021 using a Japanese claims database.

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Background: Malignant pleural mesothelioma (MPM) is a rare thoracic malignancy with poor prognosis and limited treatment options. Immunotherapy shows potential for improved outcomes; however, real-world evidence on its use will take time to accumulate. This study examined patient characteristics, treatment patterns, overall survival (OS), and predictors of mortality among patients diagnosed with MPM in Denmark prior to the introduction of newer treatments.

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Microvascular inflammation (MVI) is a key diagnostic feature of antibody-mediated rejection (AMR); however, recipients without donor-specific antibodies (DSA) defy etiologic classification using C4d staining of peritubular capillaries (C4d) and conventional DSA assignment. We evaluated MVI ≥ 2 (Banff g + ptc ≥ 2) using Banff 2019 AMR (independent of MVI ≥ 2 but including C4d) with unconventional endothelial C4d staining of glomerular capillaries (C4d) and - arterial endothelium and/or intima (C4d) using tissue immunoperoxidase, shared-eplet and subthreshold DSA (median fluorescence intensity, [MFI] 100-499), and capillary ultrastructure from 3398 kidney transplant samples for evidence of AMR. MVI ≥ 2 (n = 202 biopsies) from 149 kidneys (12.

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  • Human genetic studies often lack diversity, which limits understanding of disease causes and health disparities.
  • The Department of Veterans Affairs Million Veteran Program analyzed data from a diverse group of 635,969 veterans, revealing 13,672 genomic risk loci, with significant findings particularly from non-European populations.
  • The research identified causal variants across 613 traits, showing that genetic similarities exist across populations and emphasizing the importance of including underrepresented groups in genetic research.
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Investigation of the analyte soaking conditions on the crystalline sponge {[(ZnI)(tpt)·x(solvent)]} method using a statistical design of experiments model has provided fundamental insights into the influence of experimental variables. This approach focuses on a single analyte tested via 60 experiments (20 unique conditions) to identify the main effects for success and overall guest structure quality. This is employed as a basis for the development of a novel molecular structure grading system that enables the quantification of guest exchange quality.

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Introduction: Electronic Health Records (EHR) are a useful data source for research, but their usability is hindered by measurement errors. This study investigated an automatic error detection algorithm for adult height and weight measurements in EHR for the All of Us Research Program (All of Us).

Methods: We developed reference charts for adult heights and weights that were stratified on participant sex.

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  • This study analyzed changes in treatment patterns for Japanese patients with resectable gastric cancer from 2008 to 2022, focusing on adjuvant and recurrent therapy.
  • In the adjuvant cohort, the use of S-1 decreased as new regimens were adopted, with S-1 making up 65% of treatments by 2019-2022, compared to 95.7% earlier.
  • The recurrent cohort showed common first-line treatments like paclitaxel plus ramucirumab and S-1 combinations, aligning with Japanese Gastric Cancer Association guidelines.
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Complex subjects such as physiology can be challenging for students to learn. These challenges are not uncommon in implementing the learning process in physiology and affect learning outcomes. Dramatization is an interactive and effective method to improve learning outcomes.

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Background And Objective: Considering the rapidly evolving treatment landscape of renal cell carcinoma (RCC), recent descriptions of the RCC population in the UK are lacking, as are real-world data on treatment and patient outcomes. To analyse the demographic and clinical characteristics, treatment patterns, and overall survival of patients with RCC using national data sets in England.

Patients And Methods: This was a retrospective cohort study of patients diagnosed with RCC (all stages) between 2014-2018 using demographic, clinical, cancer registration, and treatment data.

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Kidney transplant recipients are at increased risk of malignancy as a result of immunosuppression and are increasingly exposed to checkpoint inhibitors (CPIs). However, CPI therapy can precipitate allograft rejection. This review aims to summarize the current literature describing the epidemiology, immunological mechanisms, diagnosis, and treatment of CPI-associated allograft rejection.

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Summary: With the rapid growth of genetic data linked to electronic health record data in huge cohorts, large-scale phenome-wide association study (PheWAS), have become powerful discovery tools in biomedical research. PheWAS is an analysis method to study phenotype associations utilizing longitudinal electronic health record (EHR) data. Previous PheWAS packages were developed mostly in the days of smaller biobanks and with earlier PheWAS approaches.

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Purpose: The aim of this study was to describe a case of bullous variant of central serous chorioretinopathy (CSR) in Goodpasture disease (GD) compared with an identical twin without GD and summarize the literature on ocular manifestations of GD.

Methods: This was an interventional/observational case report and literature review.

Results: A 46-year-old White woman with a history of GD presented with decreased vision.

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Objective: Pediatric patients have different diseases and outcomes than adults; however, existing phecodes do not capture the distinctive pediatric spectrum of disease. We aim to develop specialized pediatric phecodes (Peds-Phecodes) to enable efficient, large-scale phenotypic analyses of pediatric patients.

Materials And Methods: We adopted a hybrid data- and knowledge-driven approach leveraging electronic health records (EHRs) and genetic data from Vanderbilt University Medical Center to modify the most recent version of phecodes to better capture pediatric phenotypes.

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Background: The burden of non-small cell lung cancer (NSCLC) remains high in Spain, with lung cancer accounting for 20% of cancer-related deaths annually. Programs such as the Spanish Thoracic Tumour Registry (TTR) and the global I-O Optimise initiative have been developed to observe patients in clinical practice with the aim of improving outcomes. This analysis examined treatment patterns and survival in patients with stage III NSCLC from the TTR.

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Motivation: Phecodes are widely used and easily adapted phenotypes based on International Classification of Diseases codes. The current version of phecodes (v1.2) was designed primarily to study common/complex diseases diagnosed in adults; however, there are numerous limitations in the codes and their structure.

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Objective: Pediatric patients have different diseases and outcomes than adults; however, existing phecodes do not capture the distinctive pediatric spectrum of disease. We aim to develop specialized pediatric phecodes (Peds-Phecodes) to enable efficient, large-scale phenotypic analyses of pediatric patients.

Materials And Methods: We adopted a hybrid data- and knowledge-driven approach leveraging electronic health records (EHRs) and genetic data from Vanderbilt University Medical Center to modify the most recent version of phecodes to better capture pediatric phenotypes.

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Population-scale biobanks linked to electronic health record data provide vast opportunities to extend our knowledge of human genetics and discover new phenotype-genotype associations. Given their dense phenotype data, biobanks can also facilitate replication studies on a phenome-wide scale. Here, we introduce the phenotype-genotype reference map (PGRM), a set of 5,879 genetic associations from 523 GWAS publications that can be used for high-throughput replication experiments.

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The Research Program's Data and Research Center (DRC) was established to help acquire, curate, and provide access to one of the world's largest and most diverse datasets for precision medicine research. Already, over 500,000 participants are enrolled in , 80% of whom are underrepresented in biomedical research, and data are being analyzed by a community of over 2,300 researchers. The DRC created this thriving data ecosystem by collaborating with engaged participants, innovative program partners, and empowered researchers.

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Genome-wide association studies (GWAS) have underrepresented individuals from non-European populations, impeding progress in characterizing the genetic architecture and consequences of health and disease traits. To address this, we present a population-stratified phenome-wide GWAS followed by a multi-population meta-analysis for 2,068 traits derived from electronic health records of 635,969 participants in the Million Veteran Program (MVP), a longitudinal cohort study of diverse U.S.

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Utilization of the crystalline sponge {[(ZnI)(tpt)·x(solvent)]} method has enabled characterization of a novel family of synthetic organic oils. The systematic structural differences and diversity of functional groups offered by 13 related molecular adsorbates provide a detailed quantitative understanding of the relationship between the guest structure, its conformation, and the type of intermolecular interactions adopted with neighbouring guests and the host framework. This analysis is extended to assess the connection of these factors to the resulting quality indicators for a particular molecular structure elucidation.

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