Publications by authors named "S-S Choi"

Atrial fibrillation (AF) is a prevalent and morbid abnormality of the heart rhythm with a strong genetic component. Here, we meta-analyzed genome and exome sequencing data from 36 studies that included 52,416 AF cases and 277,762 controls. In burden tests of rare coding variation, we identified novel associations between AF and the genes MYBPC3, LMNA, PKP2, FAM189A2 and KDM5B.

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Atrial fibrillation (AF) is the most common heart rhythm abnormality and is a leading cause of heart failure and stroke. This large-scale meta-analysis of genome-wide association studies increased the power to detect single-nucleotide variant associations and found more than 350 AF-associated genetic loci. We identified candidate genes related to muscle contractility, cardiac muscle development and cell-cell communication at 139 loci.

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Surfaces contaminated with pathogens pose a significant risk of disease transmission and infection. Alcohol-based disinfectants are widely utilized to decontaminate high-touch areas across various settings. However, their limited antimicrobial activity and the emergence of alcohol-tolerant strains necessitate the development of highly efficient disinfectant formulations.

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  • The study compared the bioavailability of the anti-interleukin-5 antibody depemokimab when delivered using a safety syringe device (SSD) versus an autoinjector (AI) in healthy adults.
  • Both methods showed similar plasma concentration profiles and pharmacokinetic parameters, confirming that they are bioequivalent.
  • Adverse events were minor and comparable between the two delivery methods, with headaches being the most common side effect, indicating both devices are safe for administering depemokimab.
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Direct ink writing is a 3D printing method that is compatible with a wide range of structural, elastomeric, electronic, and living materials, and it continues to expand its uses into physics, engineering, and biology laboratories. However, the large footprint, closed hardware and software ecosystems, and expense of commercial systems often hamper widespread adoption. This work introduces a compact, low-cost, multimaterial, and high-throughput direct ink writing 3D printer platform with detailed assembly files and instructions provided freely online.

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Xerosis, characterized by dry, rough skin, causes discomfort and aesthetic concerns, necessitating effective treatment. Traditional treatments often show limited efficacy, prompting the need for innovative therapies. This study highlights the efficacy of microbiome therapeutic LP51, derived from a healthy vaginal microbiome, in improving xerosis.

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Background Application of multimodal large language models (LLMs) with both textual and visual capabilities has been steadily increasing, but their ability to interpret radiologic images is still doubted. Purpose To evaluate the accuracy of LLMs and compare it with that of human readers with varying levels of experience and to assess the factors affecting LLM accuracy in answering Image Challenge cases. Materials and Methods Radiologic images of cases from October 13, 2005, to April 18, 2024, were retrospectively reviewed.

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Immunohistochemistry (IHC) is the common companion diagnostics in targeted therapies. However, quantifying protein expressions in IHC images present a significant challenge, due to variability in manual scoring and inherent subjective interpretation. Deep learning (DL) offers a promising approach to address these issues, though current models require extensive training for each cancer and IHC type, limiting the practical application.

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Objectives: Concern about contrast-induced acute kidney injury (CI-AKI) may delay the timely administration of contrast media for computed tomography (CT). The precise causative effect of iodinated contrast media on CI-AKI and its relevant risk factors remains an area of ongoing investigation. Therefore, this study aimed to determine the risk of CI-AKI following contrast-enhanced CT and its predisposing risk factors.

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Background: cardiomyopathy is a distinct subset of arrhythmogenic cardiomyopathy, reported primarily in adults, that has predominantly left ventricular involvement and features of myocarditis. Clinical characteristics, risk stratification, and management of pediatric patients with variants are not well known. We sought to identify phenotypic features and prognosis of pediatric patients with pathogenic or likely pathogenic variants.

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In the extreme ultraviolet lithography (EUVL) process, extreme ultraviolet (EUV) pellicles serve as thin, transparent membranes that shield the photomask (reticle) from particle contamination, thereby preserving photomask pattern integrity, reducing chip failure risks, and enhancing production yields. The production of EUV pellicles is highly challenging due to their mechanical fragility at nanometer-scale thicknesses and the need to endure the rigorous conditions of the EUVL environment, which include high temperatures and hydrogen radicals. Consequently, extensive research has been conducted on a variety of materials, such as carbon-based and silicon-based substances, for the development of EUV pellicles.

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  • * The newly developed PAMless Cas enzyme, SpRY, allows for higher efficiency and specificity in correcting X-CGD mutations, particularly through the use of the adenine base editor ABE8e-SpRY, which achieved up to 70% mutation correction in hematopoietic stem and progenitor cells (HSPCs).
  • * Investigations into potential off-target effects showed minimal unintended edits, and the success of these techniques in mouse models supports the initiation of first-in-human
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  • Immune checkpoint therapy (ICT) has changed the treatment landscape for malignant pleural mesothelioma (MPM), but nearly half of patients do not see benefits, emphasizing the need for predictive biomarkers.
  • This study evaluated the prognostic value of serum soluble mesothelin-related peptide (SMRP) and PD-L1 levels in 125 MPM patients undergoing ICT, using statistical analyses to determine their impact on overall survival (OS).
  • Results showed that higher pre-ICT SMRP levels are linked to poorer prognosis, with low levels indicating better survival outcomes, suggesting that SMRP could serve as a valuable biomarker for future MPM treatment studies.
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  • Cervical artery dissection (CeAD) is a leading cause of ischemic strokes in young adults, and this study explored the effects of intravenous thrombolysis (IVT) on patients with CeAD and stroke symptoms.
  • Analyzed data from the STOP-CAD study, it found that IVT significantly improved functional independence after 90 days in patients without increasing the risk of symptomatic intracranial hemorrhage.
  • The results suggest that IVT is a beneficial treatment for eligible patients with CeAD, aligning with current medical guidelines on its use.
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  • Precise implantation depth is crucial for the success of transcatheter aortic valve replacement (TAVR), but the effects of incorrect depths on the ACURATE NEO2 prosthesis hadn't been previously studied.
  • A study of 1,839 patients evaluated outcomes based on three implantation depth categories: high (<3 mm), optimal (3-7 mm), and low (>7 mm), finding no significant differences in technical success or paravalvular regurgitation rates.
  • While higher implantation showed better hemodynamics, it also had a higher risk of embolization; low implantation led to more pacemaker needs, suggesting it's better to avoid high placements to minimize risks.
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In this study, a catalyst composite of Co-Cu was prepared from chloride-containing precursor of Co(II) and Cu(II) metals using the milky latex of the plant following green principles of synthesis. The catalyst composite was characterized using XRD, EDAX, SEM, HR-TEM, FTIR, XPS and TOF-MS. The crystallinity of the mixed-oxide composite with a distorted octahedral nature was confirmed from analysis.

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Purpose To determine whether the unsupervised domain adaptation (UDA) method with generated images improves the performance of a supervised learning (SL) model for prostate cancer (PCa) detection using multisite biparametric (bp) MRI datasets. Materials and Methods This retrospective study included data from 5150 patients (14 191 samples) collected across nine different imaging centers. A novel UDA method using a unified generative model was developed for PCa detection using multisite bpMRI datasets.

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Background: The field of long COVID research is rapidly evolving, however, tools to assess and monitor symptoms and recovery of the disease are limited. The objective of the present study was to develop a new patient-reported outcomes instrument, the Symptoms Evolution of Long COVID‑19 (SE-LC19), and establish its content validity.

Methods: The 40-item SE-LC19 instrument was developed based on patient-relevant empirical evidence from scientific literature and clinical guidelines that reported symptoms specific to long COVID.

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  • - The study evaluated how various cardiometabolic risk factors, such as metabolic syndrome and individual factors like high fasting glucose and low HDL cholesterol, impact the progression of coronary plaque and the likelihood of major cardiovascular events in patients with stable coronary artery disease.
  • - In a cohort of 1,200 patients followed over several years, 28% experienced rapid coronary plaque progression, identified primarily through increased atheroma volume, which indicates worsening arterial health.
  • - The findings suggest that a combination of risk factors, particularly high blood sugar and blood pressure, significantly forecast both plaque progression and serious cardiovascular incidents, highlighting the importance of monitoring these factors in at-risk patients.
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Background The diagnostic abilities of multimodal large language models (LLMs) using direct image inputs and the impact of the temperature parameter of LLMs remain unexplored. Purpose To investigate the ability of GPT-4V and Gemini Pro Vision in generating differential diagnoses at different temperatures compared with radiologists using Diagnosis Please cases. Materials and Methods This retrospective study included Diagnosis Please cases published from January 2008 to October 2023.

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Zastaprazan (JP-1366), a novel potassium-competitive acid blocker, is a new drug for the treatment of erosive esophagitis. JP-1366 is highly metabolized in human, mouse, and dog hepatocytes but moderately metabolized in rat and monkey hepatocytes when estimated from the metabolic stability of this compound in hepatocyte suspension and when 18 phase I metabolites and 5 phase II metabolites [i.e.

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Background: Loss of muscle strength and endurance with aging or in various conditions negatively affects quality of life. Resistance exercise training (RET) is the most powerful means to improve muscle mass and strength, but it does not generally lead to improvements in endurance capacity. Free essential amino acids (EAAs) act as precursors and stimuli for synthesis of both mitochondrial and myofibrillar proteins that could potentially confer endurance and strength gains.

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Background: The biological mechanisms linking environmental exposures with cardiovascular disease pathobiology are incompletely understood. We sought to identify circulating proteomic signatures of environmental exposures and examine their associations with cardiometabolic and respiratory disease in observational cohort studies.

Methods: We tested the relations of >6500 circulating proteins with 29 environmental exposures across the built environment, green space, air pollution, temperature, and social vulnerability indicators in ≈3000 participants of the CARDIA study (Coronary Artery Risk Development in Young Adults) across 4 centers using penalized and ordinary linear regression.

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  • * A study tested five spike variants with different stability levels in mice, finding that a highly stable variant (S-closed-2) induced the highest neutralizing antibody response, outperforming less stable proteins by up to 16 times.
  • * However, the most stable variant (S-locked), which prevented the spike from interacting flexibly, produced lower antibody levels against diverse strains, suggesting that further research is needed on spike protein designs to improve vaccine effectiveness.
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