378,674 results match your criteria: "South Korea; Convergence Research Advanced Centre for Olfaction[Affiliation]"

Continued Treatment with Nintedanib in Patients with Progressive Pulmonary Fibrosis: Data from INBUILD-ON.

Lung

January 2025

National Reference Center for Rare Pulmonary Diseases, Louis Pradel Hospital, Hospices Civils de Lyon, Claude Bernard University Lyon 1, UMR 754, ERN-LUNG, Lyon, France.

Purpose: In the INBUILD trial in patients with progressive pulmonary fibrosis (PPF), nintedanib slowed the decline in forced vital capacity (FVC) versus placebo, with a safety profile characterised mainly by gastrointestinal events. INBUILD-ON, the open-label extension of INBUILD, assessed the safety of nintedanib during longer-term treatment. Data on FVC were collected.

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Using administrative claims and electronic health records for observational studies is common but challenging due to data limitations. Researchers rely on phenotype algorithms, requiring labor-intensive chart reviews for validation. This study investigates whether case adjudication using the previously introduced Knowledge-Enhanced Electronic Profile Review (KEEPER) system with large language models (LLMs) is feasible and could serve as a viable alternative to manual chart review.

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Lactic acid bacteria (LAB), traditionally consumed as fermented foods, are now being applied to the medical field beyond health-functional food as probiotics. Therefore, it is necessary to continuously discover and evaluate new strains with suitable probiotic characteristics, mainly focusing on safety. In this study, we isolated eight new strains from postmenopausal vaginal fluid using culturomics approaches, an emerging area of interest.

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Ambient noise cross-correlation has been widely used to observe post-earthquake temporal velocity variations. Comparative studies are essential for assessing seismic hazards and clarifying the relationship between velocity variation and magnitude. However, very few comparative studies by earthquake magnitude have been conducted, particularly for magnitudes smaller than 6.

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The most prevalent form of malignant tumors that originate in the brain are known as gliomas. In order to diagnose, treat, and identify risk factors, it is crucial to have precise and resilient segmentation of the tumors, along with an estimation of the patients' overall survival rate. Therefore, we have introduced a deep learning approach that employs a combination of MRI scans to accurately segment brain tumors and predict survival in patients with gliomas.

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Background: High-dose-rate (HDR) brachytherapy using Iridium-192 as a radiation source is widely employed in cancer treatment to deliver concentrated radiation doses while minimizing normal tissue exposure. In this treatment, the precision with which the sealed radioisotope source is delivered significantly impacts clinical outcomes.

Purpose: This study aims to evaluate the feasibility of a new four-dimensional (4D) in vivo source tracking and treatment verification system for HDR brachytherapy using a patient-specific approach.

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Review of advances in glycan analysis on exosomes, cancer cells, and circulating cancer-derived glycoproteins with an emphasis on electrochemistry.

Anal Chim Acta

January 2025

Department of Biomedical Engineering, Korea University, Seoul, 02841, South Korea; Interdisciplinary Program in Precision Public Health, Korea University, Seoul, 02841, South Korea. Electronic address:

Glycosylation, the intricate process of adding carbohydrate motifs to proteins, lipids, and exosomes on the cell surface, is crucial for both physiological and pathological mechanisms. Alterations in glycans significantly affect cancer cell metastasis by mediating cell-cell and cell-matrix interactions. The subtle changes in glycosylation during malignant transformations highlight the importance of analyzing cell and exosome surface glycosylation for prognostic and early treatment strategies in cancer.

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Development of HRP-assisted rGO-FET biosensors for high-precision measurement of serological steroid hormones.

Anal Chim Acta

January 2025

Department of Medical Biotechnology, College of Life Science and Biotechnology, Dongguk University, Seoul, 04620, Republic of Korea. Electronic address:

Background: Sarcopenia, which is associated with many pathways and molecular mechanisms, not only deteriorates the quality of life in old age but is also linked to various diseases. The ratio between cortisol and dehydroepiandrosterone sulfate (DHEAS) was utilized as a candidate method to diagnose sarcopenia. The hormones can fluctuate in concentration throughout the day, so monitoring the ratio between the two hormones is necessary.

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Serially coupled columns enhance rapid separation and predictive interaction understanding of 93 fentanyl analogs.

Anal Chim Acta

January 2025

College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea. Electronic address:

Background: The simplicity of synthesis methods has facilitated the illegal manufacture of various fentanyl analogs, leading to numerous fatal overdoses worldwide, particularly in North America. Fentanyl analogs with similar structures are difficult to distinguish due to their fragmentation patterns, making separation using chromatography essential. Additionally, because fentanyl analogs are lethal even in trace amounts, they are easily smuggled, and commonly used fentanyl test strips often fail to detect them due to their low sensitivity.

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Inhibition of AXL ameliorates pulmonary fibrosis attenuation of M2 macrophage polarization.

Eur Respir J

January 2025

Department of Biochemistry and Molecular Biology, Brain Korea 21 Project, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.

Rationale: Although a relationship between the Gas6/AXL pathway and pulmonary fibrosis (PF) has been suggested, the precise mechanisms and clinical implications of the AXL pathway in idiopathic pulmonary fibrosis (IPF) are still unclear.

Methods: Constitutive and conditional AXL-knockout mice were generated and injected with bleomycin (BLM) to induce pulmonary fibrosis. The expression of AXL and macrophage subtypes in BLM-injected mice and patients with IPF was analysed using flow cytometry.

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Epitalon-activated telomerase enhance bovine oocyte maturation rate and post-thawed embryo development.

Life Sci

January 2025

Division of Applied Life Science (BK21 Four), Gyeongsang National University, Jinju 52828, Gyeongnam Province, Republic of Korea; Institute of Agriculture and Life Science, Gyeongsang National University, Gyeongnam Province, Republic of Korea; Division of Animal Science, Gyeongsang National University, Jinju 52828, Republic of Korea; The King Kong Corp. Ltd., Gyeongsang National University, Jinju 52828, Gyeongnam Province, Republic of Korea. Electronic address:

Telomerase is highly expressed in oocyte cumulus cells and plays a significant role in follicular development and oocyte maturation. In this study, we hypothesized that in vitro culture conditions may affect telomerase activity during in vitro embryo production (IVP) and that its activation may improve embryo quality. We first examined telomerase protein levels and localization in bovine cumulus-oocyte complexes via immunofluorescence assays.

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Endovascular treatment of femoropopliteal artery (FPA) disease with Drug-coated balloons (DCBs) may face complications such as arterial recoil, dissection, and residual stenosis. Angiography has limited accuracy for evaluating blood flow through revascularized target lesions. Thus, there is a need for post-procedure hemodynamic assessment in treated limbs.

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Bioadhesives and bioactive hydrogels for wound management.

J Control Release

January 2025

Department of Bioengineering and Nano-Bioengineering, College of Life Sciences and Bioengineering, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea; Research Center for Bio Materials & Process Development, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea. Electronic address:

Delayed wound healing remains a major challenge in biomedical research, often leading to complications such as scarring, acute trauma, and chronic diseases. Effective wound management is crucial for enhancing treatment outcomes, preventing complications, and promoting tissue regeneration. In response to this need, a variety of polymeric biomaterials have been developed.

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Triple-action cancer therapy using laser-activated NO-releasing metallomicellar nanophotosensitizer for pyroptosis-driven immune reprogramming.

J Control Release

January 2025

Department of Biomedical Sciences and BioMedical Sciences Graduate Program (BMSGP), Chonnam National University Medical School, Gwangju 61469, Republic of Korea; DR Cure Inc., Hwasun 58128, Republic of Korea. Electronic address:

Cancer photoimmunotherapy represents an intelligent and highly efficient therapeutic approach that harnesses the photothermal effect to precisely target and ablate tumor tissues, while simultaneously modulating the immune system to achieve tumor elimination. The integration of multifunctional therapeutic modalities for combined photoimmunotherapy requires advanced drug delivery systems. However, the design of a single nanoagent capable of serving as a multifunctional nanophotosensitizer remains a significant challenge.

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Reproductive toxicity of perfluorobutane sulfonate in zebrafish (Danio rerio): Impacts on oxidative stress, hormone disruption and HPGL axis dysregulation.

Comp Biochem Physiol C Toxicol Pharmacol

January 2025

Department of Cariology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India. Electronic address:

Per and polyfluoroalkyl substances (PFAS) are anthropogenic chemicals extensively used in consumer products. Perfluorobutane sulfonate (PFBS), a short-chain PFAS, has been introduced as an alternative to long-chain PFAS, but limited studies have investigated its reproductive toxicity in fish. In this study, adult zebrafish were exposed to PFBS at concentrations of 0.

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New users of sodium-glucose cotransporter 2 inhibitors are at low risk of incident pancreatic cancer: a nationwide population-based cohort study.

Diabetes Metab

January 2025

Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea; Asan Diabetes Center, Asan Medical Center, Seoul, Republic of Korea. Electronic address:

Aim: We aimed to investigate whether sodium-glucose cotransporter-2 inhibitors (SGLT2is) are associated with a decreased risk of gastrointestinal (GI) cancers in patients with type 2 diabetes (T2D) compared to other glucose lowering medications (oGLMs).

Methods: This active-comparator, new-user cohort study used the nationwide National Health Insurance Service database of the Republic of Korea from September 2014 to June 2020. From 79,423 new users of SGLT2is and 294,707 new users of oGLMs, we used a propensity score to match 59,954 from each of these two treatment groups.

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Essential resources and best practices for laboratory mouse research.

Mol Cells

January 2025

Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea, 34141. Electronic address:

The laboratory mouse (Mus musculus) is the most widely used mammalian model organism in biomedical and life science research. This concise guide aims to provide essential information to assist researchers new to working with mice, covering topics such as mouse husbandry, maintenance, and available resources for obtaining mouse strains and associated data. Additionally, we discuss ethical considerations, emphasizing the 3Rs (replacement, reduction, and refinement) to ensure responsible and humane research practices.

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Association of lung function with visceral adiposity and skeletal muscle mass considering myosteatosis.

Chest

January 2025

Subdivision of Endocrinology and Metabolism, Health Screening and Promotion Center, Asan Medical Center, Seoul, Republic of Korea. Electronic address:

Background: Changes in body composition, including loss of muscle mass and obesity, adversely affect lung function.

Research Question: What is the relationship between lung function, visceral adiposity, and skeletal muscle mass, considering myosteatosis measured using computed tomography (CT) scans in middle-aged Korean adults?

Study Design And Methods: We reviewed 15,827 participants (9237 men and 6590 women), with a mean age of 52.5 ± 8.

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Silver nitroprusside complex nanoparticles (AgN NPs) have garnered significant attention for their antimicrobial properties. However, challenges such as toxicity and limited biocompatibility often hinder their practical applications. Therefore, this study introduces a combined approach to fabricating AgN NPs with chitosan (CS), resulting in CS-AgN nanocomposites (CS-AgN NCs) with cytocompatibility.

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Comparative toxicity study of hyaluronic acid fillers crosslinked with 1,4-butanediol diglycidyl ether or poly (ethylene glycol) diglycidyl ether.

Int J Biol Macromol

January 2025

Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul 05029, Republic of Korea. Electronic address:

Dermal fillers comprising injectable hyaluronic acid (HA) are widely used for soft tissue augmentation, often using crosslinking agents such as 1,4-butanediol diglycidyl ether (BDDE) or poly (ethylene glycol) diglycidyl ether (PEGDE). Here, we assessed the physical properties, toxicity, and inflammatory reactions of HA fillers crosslinked with either BDDE (HA-BDDE filler) or PEGDE (HA-PEGDE filler) in in vitro and in vivo investigations. The HA-PEGDE filler exhibited higher G', tan δ, G*, and complex viscosity values compared to the HA-BDDE filler, while maintaining similar cohesivity.

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Conventional food packaging is creating a significant cause of environmental hazards, posing challenges in disposal and recycling. Lignocellulose fibers possess remarkable biodegradable properties and can be modified or blended with other polymers. Thus, using lignocellulose biocomposite films derived from barley, a renewable source can mitigate and potentially transform into sustainable, innovative packaging material in the food sectors.

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This study explored the vasodilatory mechanisms of the sodium-glucose cotransporter-2 inhibitor remogliflozin using femoral arteries of rabbits. Remogliflozin dilated femoral arterial rings pre-contracted with phenylephrine in a concentration-dependent manner. Pretreatment with the Ca-sensitive K channel inhibitor (paxilline), the ATP-sensitive K channel inhibitor (glibenclamide), or the inwardly rectifying K channel inhibitor (Ba) did not alter the vasodilatory effect.

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