530 results match your criteria: "Seoul National University College of Medicine and Hospital.[Affiliation]"

Recent advances in molecular science have significantly enlightened our mechanistic understanding of spinocerebellar ataxia type 7. To further close remaining gaps, we performed a multi-omics analysis using SCA7 mice. Entire brain tissue samples were collected from 12-week-old mice, and RNA sequencing, methylation analysis, and proteomic analysis were performed.

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Comparative pharmacokinetics study of two tablet formulations of delpazolid, a novel oxazolidinone class antibiotic.

Transl Clin Pharmacol

December 2024

Department of Clinical Pharmacology and Therapeutics, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam 13620, Korea.

Unlabelled: Delpazolid is an oxazolidinone-class antibiotic under development for treating diseases caused by antimicrobial-resistant gram-positive bacteria. This study compared the pharmacokinetics (PK) and safety of two formulations of delpazolid 400 mg with distinct excipient compositions: Batch No. 3183817R (test drug) and Batch No.

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Analyzing collaborations in clinical trials in Korea using association rule mining.

Transl Clin Pharmacol

December 2024

Department of Pharmaceutical Science and Technology, Kyungsung University, Busan 48434, Korea.

Identifying how trial sites collaborate is essential for multicenter trials. The ways in which collaboration among trial sites is established can vary according to study phase and clinical trial domains. In this study, we employed association rule mining to reveal trial collaboration.

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Background: We investigated whether combining T2-weighted magnetic resonance imaging (MRI) findings and clinical risk categories improves upon established prognostic indicators of oncological outcomes in prostate cancer.

Methods: Patients who underwent radical prostatectomy, but not preoperative hormone therapy, radiotherapy, or chemotherapy, for localized prostate cancer at Seoul National University Bundang Hospital from October 2007 to April 2016 were included. MRIs were classified according to the Prostate Imaging-Reporting and Data System (PI-RADS).

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Background: HY209 is a synthesized sodium taurodeoxycholate (TDCA) that is expected to serve as a novel treatment for sepsis by inhibiting the inflammasomal activation that suppresses the production of pro-inflammatory cytokines. This study aimed to assess the safety, tolerability and pharmacokinetics (PKs) of HY209 after intravenous administration in healthy subjects.

Methods: A dose-block randomized, double-blind, placebo-controlled, single ascending dose study was conducted.

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Article Synopsis
  • Proguanil is metabolized into its active form, cycloguanil, through the OCT1 transporter and CYP2C19 enzyme, with genetic variations affecting this process.
  • The study investigated the impact of specific genetic differences (SLC22A1 polymorphisms) on how the drug is processed in the body, focusing on a Korean population.
  • The results indicate that individuals with the CT genotype of the SLC22A1 polymorphism experience higher levels of proguanil but lower levels of cycloguanil, due to reduced hepatic uptake of proguanil.
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  • The study investigates how cholestyramine, a bile acid sequestrant, influences the effectiveness of metformin in lowering blood glucose levels by altering intestinal bile acid composition.
  • It involved healthy male adults in a two-period crossover design, where participants received metformin alone in the first period and with cholestyramine in the second, measuring various glucose response parameters.
  • Results showed that cholestyramine further decreased the glucose-lowering effects of metformin and improved the associated side effect of diarrhea in some participants.
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Individuals diagnosed with advanced cancer often experience stress and depression, factors linked to worse survival. Curability belief-defined as the hope and expectation of cure through treatment, based on affective forecasting-may differ from the patient's actual life expectancy (i.e.

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  • Uremia affects drug metabolism, particularly impacting evogliptin, a DPP-4 inhibitor metabolized by CYP3A4, in patients with different levels of kidney disease.
  • A study involving 46 subjects identified the pharmacokinetics (PK) of evogliptin using a two-compartment model, highlighting factors like blood amylase and triglyceride levels.
  • The developed pharmacodynamic (PD) model showed evogliptin's significant DPP-4 inhibition and its high potency, suggesting that renal impairment alters the drug's bioavailability.
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Article Synopsis
  • - The study developed reinforcement learning models to determine the best on-scene resuscitation times for adult patients experiencing out-of-hospital cardiac arrest (OHCA) using data from Korea (totaling 73,905 cases).
  • - The models focused on maximizing patient survival by employing techniques like conservative Q-learning and Random Survival Forest to improve predicted outcomes.
  • - Results showed that optimal resuscitation times increased survival rates to hospital discharge from 9.6% to 12.5% and good neurological recovery from 5.4% to 7.5%, with recommendations tailored to various patient and emergency service characteristics.
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ABL001/CTX-009 is a bispecific antibody targeting delta-like ligand-4 and vascular endothelial growth factor A. In this study, we developed a population pharmacokinetic (PK) model of ABL001/CTX-009 in patients with solid tumors. A total of 712 plasma concentrations from 30 patients with relapsed or refractory solid tumors were collected from a phase 1 study (NCT03292783).

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Purpose: A fixed-dose combination (FDC) of proton pump inhibitors (PPIs) and antacid salts enables rapid acid suppression through the neutralizing effect of the antacid salt and the rapid absorption of PPIs. This study aimed to compare the pharmacokinetics (PKs) and pharmacodynamics (PDs) of a recently formulated FDC of esomeprazole and magnesium hydroxide to the enteric-coated esomeprazole in healthy subjects.

Methods: A randomized, open-label, multiple-dose, two-treatment, two-way crossover design was conducted in healthy subjects.

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Article Synopsis
  • * A population pharmacokinetic (PK) model was developed using data from 160 individuals (92 with erosive GERD and 68 healthy volunteers) to analyze the drug's absorption and elimination.
  • * The findings revealed that while GERD affects the drug's clearance, the overall impact on drug exposure is not clinically significant; CYP2C19 genetic variations did not influence the drug's pharmacokinetics.
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The optimal prehospital blood pressure in patients following traumatic brain injury (TBI) remains controversial. We aimed to assess the association between the systolic blood pressure (SBP) at emergency department triage and patient outcomes following isolated moderate-to-severe TBI. We conducted a cross-national multicenter retrospective cohort study using the Pan-Asia Trauma Outcomes Study database from January 1, 2016, to November 30, 2018.

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Recurrence-Independent Progressive Inner-Retinal Thinning After Optic Neuritis: A Longitudinal Study.

J Neuroophthalmol

September 2024

Department of Ophthalmology (YM), Asan Medical Center and University of Ulsan College of Medicine, Seoul, Korea; Department of Ophthalmology (YG), Ewha Womans University Seoul Hospital, Seoul, Korea; Department of Ophthalmology (K-AP), Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Department of Ophthalmology (HKY), Seoul National University College of Medicine and Bundang Hospital, Seongnam, Korea; Department of Ophthalmology (S-JK, JHJ), Seoul National University College of Medicine and Hospital, Seoul, Korea; and Department of Neurology (S-MK), Seoul National University College of Medicine and Hospital, Seoul, Korea.

Background: Longitudinal changes in the inner retina in patients with optic neuritis (ON) may be helpful in monitoring patients and determining maintenance treatment. The aim of this study was to investigate longitudinal changes in the inner retina after subsiding of acute demyelinating ON and to identify the factors associated with such changes.

Methods: In this multicenter retrospective observational study, we reviewed the medical records of 77 patients with ON, including 23 with neuromyelitis optica spectrum disorder with aquaporin 4 (AQP4)-immunoglobulin G (IgG) (AQP4 group), 23 with myelin oligodendrocyte glycoprotein (MOG)-antibody-associated disease (MOG group), 18 with multiple sclerosis (MS group), and 13 with idiopathic ON (iON group).

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Studies on the immune-regulatory roles played by the commensal microbes residing in the nasal mucosa consider the contribution of antiviral immune responses. Here, we sought to identify the nasal microbiome, Staphylococcus epidermidis-regulated antiviral immune responses and the alteration of polyamine metabolites in nasal epithelium. We found that polyamines were required for the life cycle of influenza A virus (IAV) and depletion of polyamines disturbed IAV replication in normal human nasal epithelial (NHNE) cells.

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Psoriasis is a chronic inflammatory skin disorder with various subtypes, including psoriasis vulgaris (PV) and palmoplantar pustulosis (PPP). Metabolomics studies have provided insights into psoriasis pathogenesis. However, research on metabolomic alterations in PV and PPP patients is limited.

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Introduction: GB-5001 is an intramuscular (IM) formulation of donepezil under development for the treatment of Alzheimer's disease. The objective of this study was to develop a population pharmacokinetic (PK) model for donepezil in both IM and oral formulations, and to optimize the IM dosage of GB-5001 using bioequivalence (BE) simulation.

Methods: A population PK model of donepezil was developed using NONMEM.

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A randomized, active-controlled, double-blind, first-in-human, phase 1 study was conducted in healthy Korean adults to evaluate the safety, tolerability, and immunogenicity of EuNmCV-5, a new pentavalent meningococcal vaccine targeting serogroups A, C, W, X, and Y. Sixty participants randomly received a single dose of either EuNmCV-5 or MenACWY-CRM, a quadrivalent vaccine containing serogroups A, C, W, and Y. Safety was assessed through monitoring anaphylactic reactions, adverse events for 28 days, and serious adverse events over 180 days.

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The epidemiology and outcomes of severe road traffic injury by road user type in Korea: A nationwide retrospective observational study.

Injury

October 2024

Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute, Seoul, South Korea; Department of Emergency Medicine, Seoul National University College of Medicine and Hospital, Seoul, South Korea; Disaster Medicine Research Center, Seoul National University Medical Research Center, Seoul, South Korea.

Article Synopsis
  • Road traffic injuries (RTIs) are a major public health issue in Korea, heavily affecting vulnerable road users (VRUs) and this study focuses on evaluating the severe RTI cases from 2016 to 2020 using a nationwide trauma registry.
  • Out of 143,021 severe trauma cases analyzed, 24,464 were RTIs, with pedestrians being the most affected group, and a significant proportion of patients (51.6%) experienced in-hospital mortality, including a notable rate of out-of-hospital cardiac arrests (OHCA).
  • The study found a stable overall number of severe RTIs but identified trends such as declining pedestrian cases and increasing motorcyclist cases, poor safety device usage rates, and highlighted that
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