949 results match your criteria: "Korea National Institute of Health.[Affiliation]"

Gasoline exhaust particles induce MMP1 expression via Nox4-derived ROS-ATF3-linked pathway in human umbilical vein endothelial cells.

Toxicology

January 2025

Division of Cardiovascular Disease Research, Department of Chronic Disease Convergence Research, Korea National Institute of Health, Cheongju, Republic of Korea.

Gasoline exhaust particles (GEP) are risk factors for cardiovascular disease. Activating transcription factor 3 (ATF3) is a transcription factor known to form a heterodimer with AP-1 transcription factors for its target gene expression. However, the involvement of ATF3 in GEP-induced gene expression in human umbilical vein endothelial cells (HUVECs) has not been investigated.

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Seasonal Dynamics of Ticks and Tick-Borne Pathogens in Republic of Korea.

Pathogens

December 2024

Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University, Wonju 26493, Republic of Korea.

Tick-borne diseases are a public health problem and a significant burden on the livestock industry. The seasonal abundance of ticks and tick-borne pathogens strongly correlates with the prevalence of these diseases. To investigate the seasonal variation in ticks and tick-borne pathogens, ticks were collected from Gangwon State, Korea, and the tick-borne pathogens , , , and were examined.

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Exposure to tamoxifen can exert effects on the human liver, and esterases process prodrugs such as antibiotics and convert them to less toxic metabolites. In this study, the porcine liver esterase (PLE)-inhibitory activity of tamoxifen has been investigated. PLE showed inhibition of a PLE isoenzyme (PLE5).

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Uncovering potential causal genes for undiagnosed congenital anomalies using an in-house pipeline for trio-based whole-genome sequencing.

Hum Genomics

January 2025

Division of Genome Science, Department of Precision Medicine, Korea National Institute of Health, Korea Disease Control and Prevention Agency, Cheongju, Chungbuk, 28159, Republic of Korea.

Background: Congenital anomalies (CAs) encompass a wide spectrum of structural and functional abnormalities during fetal development, commonly presenting at birth. Identifying the cause of CA is essential for accurate diagnosis and treatment. Using a target-gene approach, genetic variants could be found in certain CA patients.

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Unraveling metabolic signatures in SARS-CoV-2 variant infections using multiomics analysis.

Front Immunol

January 2025

Integrated Metabolomics Research Group, Metropolitan Seoul Center, Korea Basic Science Institute, Seoul, Republic of Korea.

Introduction: The emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants, notably delta and omicron, has significantly accelerated the global pandemic, worsening conditions worldwide. However, there is a lack of research concerning the molecular mechanisms related to immune responses and metabolism induced by these variants.

Methods: Here, metabolomics combined with transcriptomics was performed to elucidate the immunometabolic changes in the lung of hamsters infected with delta and omicron variants.

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Pentraxin 3 deficiency ameliorates streptozotocin-induced pancreatic toxicity via regulating ER stress and β-cell apoptosis.

Mol Cells

December 2024

Department of Pharmacology, Yeungnam University College of Medicine, 170 Hyeonchung-ro, Nam-gu, Daegu 42415, Republic of Korea; Senotherapy-based Metabolic Disease Control Research Center, Yeungnam University College of Medicine, 170 Hyeonchung-ro, Nam-gu, Daegu 42415, Republic of Korea. Electronic address:

The long pentraxin 3 (PTX3), a marker of inflammation, has been associated with cardiovascular disease, obesity, and metabolic syndrome. Recently, elevated serum PTX3 levels have been linked to type 2 diabetes in obese patients with nonalcoholic fatty liver disease. Diabetes mellitus is a metabolic syndrome characterized by hyperglycemia resulting from insufficient insulin secretion or action.

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Association of sarcopenia, ambient air pollution and cognitive function in a community-dwelling middle-aged and elderly Korean population: a community-based cohort study.

BMJ Open

December 2024

Division of Population Health Research, Department of Precision Medicine, Korea National Institute of Health, Korea Disease Control and Prevention Agency, Cheongju, The Republic of Korea

Objectives: To investigate the association of sarcopenia, exposure to medium-term to long-term ambient particulate matter 2.5 µm and 10 µm (PM and PM) pollution and cognitive function in a community-dwelling cohort of middle-aged and older adults in South Korea.

Design: A community-based prospective cohort study.

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analysis for the development of multi-epitope vaccines against .

Front Immunol

December 2024

Korea National Institute of Health, Korea Disease Control and Prevention Agency, CheongJu, Republic of Korea.

As Bacille Calmette-Guérin (BCG) vaccine's effectiveness is limited to only children, the development of new tuberculosis (TB) vaccines is being studied using several platforms, and a novel TB vaccine that overcomes this limitation is required. In this study, we designed an effective multi-epitope vaccine against using immunoinformatic analysis. First, we selected 11 highly antigenic proteins based on previous research: Ag85A, Ag85B, Ag85C, ESAT-6, MPT64, Rv2660c, TB10.

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Article Synopsis
  • The study examines how immunity to COVID-19 has evolved from the pandemic to endemic phases, focusing on the updated XBB.1.5 monovalent vaccine (MonoV).
  • Researchers tracked 327 healthcare workers over three years, assessing various immunity responses through blood samples collected at different times.
  • Findings reveal that while antibody levels declined initially, they were maintained and even enhanced in the endemic phase, with the MonoV showing significantly improved neutralization against new virus strains compared to previous vaccines.
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Effects of TMEM232 Variant on Infant Atopic Dermatitis According to Maternal Factors.

Genes (Basel)

November 2024

Division of Allergy and Respiratory Disease Research, Department of Chronic Disease Convergence Research, Korea National Institute of Health, Korea Disease Control and Prevention Agency, Cheongju 28159, Republic of Korea.

Atopic dermatitis (AD) is caused by interactions between genetic susceptibility and environmental factors. Transmembrane protein 232 () is one of the genes strongly implicated in AD. In the present study, we aimed to investigate the association between AD with variants within based on maternal factors, including a history of allergic diseases, and sensitization to Der f.

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Association between elevated glycosylated hemoglobin and cognitive impairment in older Korean adults: 2009-2010 Ansan cohort of the Korean genome and epidemiology study.

Front Public Health

November 2024

Division of Population Health Research, Department of Precision Medicine, Korea National Institute of Health, Cheongju-si, Chungcheongbuk-do, Republic of Korea.

Objective: Cohort studies on the risk of cognitive impairment in the older population of S. Korea based on glycosylated hemoglobin (HbA1c) levels are exceedingly rare. This study aimed to analyze the association between HbA1c levels and cognitive impairment in older Korean adults without dementia.

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Article Synopsis
  • Japanese encephalitis (JE) vaccination has been effective, but the emergence of a new genotype V (GV) of the virus in China and rising cases in South Korea are concerning challenges.
  • Analysis of serum samples from vaccinated individuals revealed that while they had strong neutralizing responses against the original genotype III (GIII) virus, their response against the new GV variants was significantly lower.
  • The findings indicate that existing GIII-based vaccines may not offer adequate protection against GV JEV, posing risks for populations in endemic areas and travelers.
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Palmitoyl-L-carnitine induces tau phosphorylation and mitochondrial dysfunction in neuronal cells.

PLoS One

November 2024

Division of Brain Disease Research, Department for Chronic Disease Convergence Research, Korea National Institute of Health, Cheongju-si, Chungcheongbuk-do, Republic of Korea.

Alzheimer's disease (AD) is characterized by cognitive decline and memory loss, involving mechanisms such as tau hyperphosphorylation and mitochondrial dysfunction. Increasing evidence suggests that age-related alterations in metabolite levels are crucial for the pathogenesis of AD. Here, we analyzed serum metabolites from mice of various ages (2, 4, 14, and 21 months old) using mass spectrometry.

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Lactate utilization in Lace1 knockout mice promotes browning of inguinal white adipose tissue.

Exp Mol Med

November 2024

Laboratory of Developmental Biology and Genomics, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea.

Recent studies have focused on identifying novel genes involved in the browning process of inguinal white adipose tissue (iWAT). In this context, we propose that the mitochondrial ATPase gene lactation elevated 1 (Lace1) utilizes lactate to regulate the browning capacity of iWAT, specifically in response to challenge with CL-316,243 (CL), a beta3-adrenergic receptor (β3-AR) agonist. The mice were injected with CL over a span of 3 days and exposed to cold temperatures (4-6 °C) for 1 week.

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Immunopathological markers and cell types linked to COVID-19 symptom manifestation.

BMC Infect Dis

November 2024

Division of Biomedical Convergence, College of Biomedical Science, Institute of Bioscience & Biotechnology, Kangwon National University, Chuncheon, 24341, Korea.

Background: Numerous studies have investigated the molecular properties that contribute to the symptoms of COVID-19, such as the virus's genetic makeup, its replication mechanisms, and how it interacts with host cells. However, identifying the immunopathological properties, such as the immune system's response, cytokine levels, and the presence of specific biomarkers, that are associated with the severity of the infection remains crucial for developing effective treatments and preventions.

Methods: We analyzed blood protein factor profiles from 420 individuals to identify features differentiating between test-negative healthy, asymptomatic, and symptomatic individuals using statistical comparison and the least absolute shrinkage and selection operator (i.

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Frailty transition and burden on mortality risk in middle-aged and older population: a prospective cohort study.

Sci Rep

November 2024

Division of Population Health Research, Department of Precision Medicine, Korea National Institute of Health, 200 Osongsaengmyeong2-ro, Osong-eup, Cheongju, Chungcheongbuk-do, Republic of Korea.

The effect of frailty transition and burden on the risk of all-cause mortality in South Korea remains unclear. This study aimed to investigate the risk of all-cause mortality using the most recent frailty index (FI), changes in FI, and frailty burden. We analyzed data from the Korean Genome and Epidemiology Study (2013-2020).

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Mechanistic insight into airborne particulate matter PM10 as an environmental hazard for hemorrhagic stroke: Evidence from in vitro and in vivo studies.

J Hazard Mater

December 2024

Department of Food and Biotechnology, Korea University, Sejong, Republic of Korea; BK21 FOUR Research Group for Omics-based Bio-health in Food Industry, Korea University, Sejong, Republic of Korea; Biological Clock-based Anti-aging Convergence RLRC, Korea University, Sejong, Republic of Korea; Institutes of Natural Sciences, Korea University, Sejong, Republic of Korea. Electronic address:

Airborne particulate matter less than 10 µm in diameter (PM10) is recognized as a significant environmental risk factor for hemorrhagic stroke (HS), as evidenced by epidemiological studies that link PM10 with the heightened cerebrovascular mortality related to HS. Nonetheless, the molecular mechanisms underlying this association remain unknown. Cerebral aneurysm (CA), an etiological factor of HS, is characterized by a bulge resulting from the abnormal loss of the muscular layer of a cerebral artery, comprising brain vascular endothelial cell (BVEC) and vascular smooth muscle cell (VSMC).

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Human embryonic stem cells (hESCs) are naturally equipped to maintain genome integrity to minimize genetic mutations during early embryo development. However, genetic aberration risks and subsequent cellular changes in hESCs during in vitro culture pose a significant threat to stem cell therapy. While a few studies have reported specific somatic mutations and copy number variations (CNVs), the molecular mechanisms underlying the acquisition of 'culture-adapted phenotypes' by hESCs are largely unknown.

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Immunogenicity Analysis of Chikungunya Virus DNA Vaccine Based on Mutated Putative N-Linked Glycosylation Sites of the Envelope Protein.

Vaccines (Basel)

September 2024

Division of Vaccine Development Coordination, Center for Vaccine Research National Institute of Infectious Diseases, Korea National Institute of Health, Korea Disease Control and Prevention Agency, Cheongju-si 28159, Chungcheongbuk-do, Republic of Korea.

Chikungunya fever is a mosquito-borne infectious disease caused by the chikungunya virus (CHIKV). Recently, CHIKV has spread rapidly worldwide, raising global concerns. However, there is only one approved vaccine is available to prevent CHIKV infection; therefore, different platform vaccines development is a public health priority.

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Gut Microbiota and New Microbiome-Targeted Drugs for Infections.

Antibiotics (Basel)

October 2024

Division of Antimicrobial Resistance Research, Korea National Institute of Health, Korea Disease Control and Prevention Agency, Cheongju-si 28159, Republic of Korea.

is a major causative pathogen for antibiotic-associated diarrhea and infections (CDIs) may lead to life-threatening diseases in clinical settings. Most of the risk factors for the incidence of CDIs, i.e.

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: This study was conducted to develop information and communication technology (ICT)-based oral functional rehabilitation exercise (OFRE) program content to effectively improve the oral function of the elderly people. : After selecting evidence-based effective OFRE items through systematic review, the final items were constructed through the validity evaluation of detailed items through an expert Delphi survey. The items were composed in a simple content form that can be performed directly and applied to ICT-based mobile applications.

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Article Synopsis
  • Microbes play a vital role in biotechnology, necessitating the preservation and management of diverse microbial resources through culture collections.
  • These collections serve as repositories for various microorganisms, ensuring they are maintained and distributed for research, education, and industrial applications.
  • Collaborative networks, such as the World Federation for Culture Collections and regional groups, are essential for supporting the long-term viability of these resources, especially as microbiome research continues to grow and presents new challenges in sample management.
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Understanding the immune response to COVID-19 is challenging due to its high variability among individuals. To identify differentially expressed cytokines between the deteriorating and recovering phases, we analyzed the Electronic Health Records (EHR) and cytokine profile data in a COVID-19 cohort of 444 infected patients and 145 non-infected healthy individuals. We categorized each patient's progression into Deterioration Phase (DP) and Recovery Phase (RP) using longitudinal neutrophil, lymphocyte and lactate dehydrogenase levels.

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Klebsiella pneumoniae, a human-dog shuttle organism for the genes of CTX-M ESBL.

Sci Rep

October 2024

Department of Laboratory Medicine, Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, 06273, South Korea.

Antimicrobials reserved for human medicines are permitted for companion animals and it is important to understand multidrug-resistant pathogens recovered from companion animals in terms of epidemiological correlation with human pathogens and possibility of transmission to human-beings. Seventeen of each CTX-M-type extended-spectrum beta-lactamase-producing Escherichia coli (ESBL-EC) and Klebsiella pneumoniae (ESBL-KP) canine isolates were assessed. Entire genomes of the 34 isolates were sequenced.

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Protein source associated with risk of metabolic syndrome in adults with low and adequate protein intake: A prospective cohort study of middle-aged and older adults.

J Nutr Health Aging

December 2024

Department of Nutritional Science and Food Management, Ewha Womans University, Seoul 03760, Republic of Korea; Graduate Program in System Health Science & Engineering, Ewha Womans University, Seoul 03760, Republic of Korea. Electronic address:

Objectives: Metabolic syndrome is associated with an increased risk of diabetes, cardiovascular disease, and all-cause mortality. Some evidence suggests that the cardiometabolic health benefits of protein intake may vary by the source (animal or plant); however, the evidence is inconsistent. This study aimed to assess the risk of developing metabolic syndrome according to the protein source.

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