Publications by authors named "S-C Hong"

Background & Aims: Steatotic liver disease (SLD) is prevalent among patients with chronic hepatitis B (CHB). However, the effects of metabolic dysfunction-associated SLD (MASLD) on the long-term survival of such patients remain unknown. Accordingly, this study investigated the mortality risks in patients with CHB and concurrent SLD.

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  • The study aimed to evaluate the prognostic and survival value of major pathologic response (MPR) in patients with esophageal squamous cell carcinoma (ESCC) who received neoadjuvant chemotherapy or chemoimmunotherapy followed by surgery.
  • A retrospective analysis of 305 patients revealed that those who achieved MPR experienced significantly better recurrence-free survival (RFS), locoregional recurrence-free survival (L-RFS), and distant metastasis-free survival (D-MFS).
  • The findings suggest that MPR is not only an independent prognostic factor but also a reliable surrogate for survival outcomes in ESCC patients, with no additional survival benefits found from adjuvant therapy post-surgery.
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The shuttling of lithium polysulfides (LiPSs), sluggish reaction kinetics, and uncontrolled lithium deposition/stripping remain the main challenges in lithium-sulfur batteries (LSBs), which are aggravated under practical working conditions, i.e., high sulfur loading and lean electrolyte in large-capacity pouch cells.

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  • The study addresses the challenge of selectively breaking S-C bonds in disulfides, as these are typically more stable than the S-S bonds that hold them together.
  • A new process is introduced that uses chloride to induce a radical cation reaction, converting symmetrical disulfides into unsymmetrical β-fluorodisulfides through selective cleavage.
  • Mechanistic analysis suggests that the reaction involves a chlorinated disulfide radical that reacts with alkenes, showcasing broad functional group tolerance and yielding various products efficiently.
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CRISPR-free, protein-only cytosine base editors (CBEs) or adenine base editors, composed of DNA-binding proteins such as zinc finger proteins or transcription activator-like effectors (TALEs) and nucleobase cytosine or adenine deaminases, respectively, enable organellar DNA editing in cultured cells, animals and plants. TALE-linked double-stranded DNA deaminase toxin A (DddA)-derived CBEs (DdCBEs) and TALE-linked adenine deaminases (TALEDs) install C-to-T and A-to-G single-nucleotide conversions, respectively, in mitochondria and chloroplasts. Interestingly, whereas TALEDs exclusively induce A-to-G conversions without C-to-T conversions in mammalian mitochondrial DNA, they often install unwanted C-to-T edits in addition to intended A-to-G edits in plastid DNA.

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Background And Objectives: Despite the mechanistic potential of sodium-glucose cotransporter 2 inhibitor (SGLT2i) to improve neurologic outcomes, the efficacy of SGLT2i in neurodegenerative disorders among patients with type 2 diabetes is not well established. This population-based cohort study aimed to investigate the association of SGLT2i use with risks of incident dementia and Parkinson disease (PD) in patients with type 2 diabetes.

Methods: This was a retrospective examination of data from a cohort of 1,348,362 participants with type 2 diabetes (≥40 years), who started antidiabetic drugs from 2014 to 2019, evaluated using the Korean National Health Insurance Service Database.

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Background: This study evaluates the clinical trends and impact of hepatitis C virus-positive (HCV+) donors on waitlist and posttransplant outcomes after heart transplantation.

Methods: The United Network for Organ Sharing registry was queried to identify adult waitlisted and transplanted patients from January 1, 2015, to December 31, 2022. In the waitlist analysis, the candidates were stratified into 2 cohorts based on whether they were willing to accept HCV+ donor offers.

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This study elucidates the mechanisms and principles governing chemoselectivity in synthesizing two distinct N-heterocycles, benzimidazole thiazine and benzothiazole imidazole, through BF•OEt-catalyzed cyclization reactions of propargyl alcohols with benzimidazole thiols. Employing density functional theory calculations, we highlight the crucial role of fluorine source in influencing chemoselectivity. In DCM, BF, as the catalytic center, coordinates with propargyl alcohol's hydroxyl group to form a precursor.

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  • COVID-19 and influenza are respiratory illnesses caused by different viruses but share some symptoms and clinical risk factors, yet their genetic connections remain poorly understood.
  • A study involving over 18,000 influenza cases and nearly 276,000 control subjects found no common genetic risk factors between COVID-19 and influenza, revealing specific gene variants linked only to influenza.
  • The research highlights the potential for targeting cell surface receptors involved in viral entry, showing that manipulating specific genes could lead to treatments that prevent both COVID-19 and influenza infections.
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  • The study synthesized and characterized three different 1:1 cocrystal forms of etoricoxib, a pain-relief medication, with different benzoic acids: etoricoxib-benzoic acid, etoricoxib-4-fluorobenzoic acid, and etoricoxib-4-nitrobenzoic acid.
  • Techniques like single-crystal X-ray diffraction, powder X-ray diffraction, and thermal differential scanning calorimetry-thermogravimetry were employed to analyze these cocrystals and their unique properties.
  • The research revealed that the presence of the acid partners significantly affects the conformations of etoricoxib and that the stability of the cocrystals is linked
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T cell receptor (TCR) T cell therapies target tumor antigens in a human leukocyte antigen (HLA)-restricted manner. Biomarker-defined therapies require validation of assays suitable for determination of patient eligibility. For clinical trials evaluating TCR T cell therapies targeting melanoma-associated antigen A4 (MAGE-A4), screening in studies NCT02636855 and NCT04044768 assesses patient eligibility based on: (1) high-resolution HLA typing and (2) tumor MAGE-A4 testing via an immunohistochemical assay in HLA-eligible patients.

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  • The study evaluates different prognostic scoring systems to predict survival in patients participating in early phase clinical trials for advanced cancer at Liverpool Hospital between 2013 and 2023.
  • Data from 218 patients revealed an overall median survival of 9.8 months, with a notable 22% experiencing death within 90 days, while 17-34% were classified as high-risk.
  • Among the five scoring systems tested, the MD Anderson Cancer Center score showed the best predictive ability, but all systems were similarly effective, suggesting that these scores could enhance patient selection in clinical trials.
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  • There has been an increase in the number of hematopoietic cell transplants (HCT) and improvement in overall survival after these procedures for blood disorders, but the impact on racial/ethnic minorities is unclear.
  • A study examined transplant rates and survival trends among non-Hispanic Whites, non-Hispanic African Americans, and Hispanics from 2009 to 2018, revealing that Hispanics and non-Hispanic African Americans experienced higher rates of transplant than non-Hispanic Whites.
  • Despite overall improvements in survival rates across groups, non-Hispanic African Americans faced greater mortality risks after allogeneic transplants, indicating ongoing disparities that need to be addressed.
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Transdermal delivery of peptide drugs is almost impossible with conventional penetration enhancers because of epidermal barrier function. Microneedle (MN) patches can bypass the epidermal barrier and have been developed for trans- and intradermal delivery of peptide drugs and vaccines. However, dissolving MN patches are limited by low drug loading capacities due to their small size and admixture of drug and water-soluble excipients.

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  • - The study develops a new culture system that mimics the heart's natural environment to improve the creation of human cardiac tissues for biomedical use.
  • - This system combines a microfluidic chip with a three-dimensional heart matrix, leading to more mature and functional cardiac tissues made from human stem cells.
  • - Resulting tissues show better performance in drug testing, disease modeling, and regenerative therapies, making this culture system an effective tool for various medical applications.
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Introduction: To assess the rate of change in soluble fms-like tyrosine kinase-1/placental growth factor (sFlt-1/PlGF) ratio and PlGF levels per week compared to a single sFlt-1/PlGF ratio or PlGF level to predict preterm birth for pregnancies complicated by fetal growth restriction.

Material And Methods: A prospective cohort study of pregnancies complicated by isolated fetal growth restriction. Maternal serum PlGF levels and the sFlt-1/PlGF ratio were measured at 4-weekly intervals from recruitment to delivery.

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The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron strain has evolved into highly divergent variants with several sub-lineages. These newly emerging variants threaten the efficacy of available COVID-19 vaccines. To mitigate the occurrence of breakthrough infections and re-infections, and more importantly, to reduce the disease burden, it is essential to develop a strategy for producing updated multivalent vaccines that can provide broad neutralization against both currently circulating and emerging variants.

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  • A study was conducted to create and validate a CT-based radiomics model (R-score) to predict the outcomes for patients with grade 1-2 pancreatic neuroendocrine tumors (PanNETs) after surgery, acknowledging the varied clinical outcomes of these tumors.
  • The research involved a multicenter analysis where patients' data were used to develop and compare a radiomics model (R-score), a clinical model (C-model), and an integrated model (CR-model) using advanced statistical methods.
  • Results showed that the CR-model, which combines the R-score and clinical factors, performed better in predicting recurrence-free survival and overall survival compared to the C-model alone, indicating its potential as a reliable prognostic tool.
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Proper placental development in early pregnancy ensures a positive outcome later on. The developmental relationship between the placenta and embryonic organs, such as the heart, is crucial for a normal pregnancy. However, the mechanism through which the placenta influences the development of embryonic organs remains unclear.

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The cross-shelf distributions of total mercury (THg), methylmercury (MeHg) and organic and inorganic matter, as well as the presence of the hgcA gene were investigated on the East Siberian Shelf (ESS) to understand the processes underlying the speciation of sedimentary Hg. Samples were collected from 12 stations grouped into four zones based on water depth: inner shelf (5 stations), mid-shelf (3 stations), outer shelf (2 stations), and slope (2 stations). The THg concentration in the surface sediment increased from the inner shelf (0.

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Repeated exposure to pathogens leads to evolutionary selection of adaptive traits. Many species transfer immunological memory to their offspring to counteract future immune challenges. Transfer factors such as those found in the colostrum are among the many mechanisms where transfer of immunologic memory from one generation to the next can be achieved for an enhanced immune response.

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  • Mutation-targeted therapy for cystic fibrosis (CF) is not suitable for all patients, particularly those with rare CFTR gene variants like W57G/A234D.
  • Researchers analyzed how these variants affect CFTR protein stability using colonoids and nasal epithelial cells, utilizing methods like western blotting and Ussing chamber analysis.
  • Treatment with CFTR modulators (VX661, VX445, VX770) showed improved CFTR function, reduced sweat chloride levels, and an increase in lung function (FEV1%) after 27 weeks, highlighting the importance of personalized treatment approaches for CF.
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Objective: To assess the association between placental biomarkers (placental growth factor (PlGF) and soluble fms-like tyrosine kinase-1 (sFlt-1)/PlGF ratio) and fetoplacental Doppler indices (umbilical artery (UA) pulsatility index (PI) and uterine artery (UtA) PI) in various combinations for predicting preterm birth (PTB) in pregnancies complicated by fetal growth restriction (FGR).

Methods: This was a prospective observational cohort study, performed at Mater Mother's Hospital in Brisbane, Queensland, Australia, from May 2022 to June 2023, of pregnancies complicated by FGR and appropriate-for-gestational-age (AGA) pregnancies. Maternal serum PlGF levels, sFlt-1/PlGF ratio, UA-PI and UtA-PI were measured at 2-4-weekly intervals from recruitment until delivery.

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Aims: Menopause is a natural process in women that can lead to post-menopausal syndrome with symptoms such as hot flushes, weight gain, anxiety, cognitive decline, and depression. Hormonal replacement therapy is commonly prescribed. However, it has serious adverse effects.

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