2,412 results match your criteria: "College of Natural Science[Affiliation]"
Genes (Basel)
August 2024
Department of Bio & Environmental Technology, College of Natural Science, Seoul Women's University, Seoul 01797, Republic of Korea.
The rhizosphere of plants contains a wide range of microorganisms that can be cultivated and used for the benefit of agricultural practices. From garden soil near the rhizosphere region, Strain ES10-3-2-2 was isolated, and the cells were Gram-negative, aerobic, non-spore-forming rods that were 0.3-0.
View Article and Find Full Text PDFBiol Psychiatry Glob Open Sci
September 2024
Department of Physiology and Neuroscience, Dental Research Institute, Seoul National University School of Dentistry, Seoul, Republic of Korea.
Background: Affective recognition and sensory processing are impaired in people with autism. However, no mouse model of autism comanifesting these symptoms is available, thereby limiting the exploration of the relationship between affective recognition and sensory processing in autism and the molecular mechanisms involved.
Methods: With mice, we conducted the affective state discrimination test and an odor habituation/dishabituation test.
Adv Mater
October 2024
Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Nam-Gu, Pohang, 37673, Republic of Korea.
Plasmonic nanoparticles can be assembled into a superlattice, to form optical metamaterials, particularly targeting precise control of optical properties such as refractive index (RI). The superlattices exhibit enhanced near-field, given the sufficiently narrow gap between nanoparticles supporting multiple plasmonic resonance modes only realized in proximal environments. Herein, the planar superlattice of plasmonic Au nanohexagons (AuNHs) with precisely controlled geometries such as size, shape, and edge-gaps is reported.
View Article and Find Full Text PDFImmunol Rev
January 2025
Department of Biological Sciences, College of Natural Science, Seoul National University, Seoul, South Korea.
DNA sensors generally initiate innate immune responses through the production of type I interferons. While extensively studied for host defense against invading pathogens, emerging evidence highlights the involvement of DNA sensors in metabolic and cardiovascular diseases. Elevated levels of modified, damaged, or ectopically localized self-DNA and non-self-DNA have been observed in patients and animal models with obesity, diabetes, fatty liver disease, and cardiovascular disease.
View Article and Find Full Text PDFMacromol Rapid Commun
November 2024
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai, 201620, P. R. China.
Nanomedicines loaded in macrophages (MAs) can actively target tumors without dominantly relying on the enhanced permeability and retention (EPR) effect, making them effective for treating EPR-deficient malignancies. Herein, copper-crosslinked carbon dot clusters (CDCs) are synthesized with both photodynamic and chemodynamic functions to manipulate MAs, aiming to direct the MA-mediated tumor targeting. First, green fluorescent CDs (g-CDs) are prepared by a one-step hydrothermal method.
View Article and Find Full Text PDFFood Sci Biotechnol
July 2024
Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841 Republic of Korea.
Unlabelled: This study investigated levels of eight polycyclic aromatic hydrocarbons (PAH8) compounds in both raw and processed marine products in South Korea. Katsuobushi exhibited the highest concentration of benzo[a]pyrene, at 14.22 µg/kg, exceeding the European Commission's regulation level of 5.
View Article and Find Full Text PDFFood Sci Biotechnol
August 2024
Division of Human Ecology, College of Natural Science, Korea National Open University, Seoul, 03078 Republic of Korea.
Unlabelled: This study aimed to optimize the accelerated solvent extraction (ASE) condition of zeaxanthin from orange paprika using a response surface methodology (RSM) or an artificial neural network (ANN) with a genetic algorithm (GA). Input variables were ethanol concentration, extraction time, and extraction temperature, while output variable was zeaxanthin. The mean squared error and regression correlation coefficient of the developed ANN model were 0.
View Article and Find Full Text PDFPurpose: It has been reported that exhaustive exercise (EE) causes myocyte injury, and eventually damages the function of the myocardia. Albiflorin (AF) has anti-inflammatory, antioxidant, and anti-apoptosis effects. In this study, we determined whether AF could mitigate the EE-induced myocardial injury and research the potential mechanisms.
View Article and Find Full Text PDFACS Omega
August 2024
Government College University Faisalabad, Department of Chemistry, P.O. Box: 38000, Faisalabad 38040, Pakistan.
Chiral allenes and styrenes are essential components in fields like medicinal chemistry, materials science, and organic synthesis. They serve a crucial role as chiral ligands and catalysts in asymmetric synthesis. Over the past decade, there has been a significant advancement in the development of practical methods utilizing organocatalytic strategies for the synthesis of chiral allenes and styrenes.
View Article and Find Full Text PDFPolymers (Basel)
July 2024
Department of Environmental Energy Engineering, College of Creative Engineering, Kyonggi University, Suwon 16227, Republic of Korea.
Plastics have accumulated in open environments, such as oceans, rivers, and land, for centuries, but their effect has been of concern for only decades. Plastic pollution is a global challenge at the forefront of public awareness worldwide due to its negative effects on ecological systems, animals, human health, and national economies. Therefore, interest has increased regarding specific circular economies for the development of plastic production and the investigation of green technologies for plastic degradation after use on an appropriate timescale.
View Article and Find Full Text PDFBMC Public Health
August 2024
Crisis, Disaster and Risk Management, College of Natural Science, Sungkyunkwan University, Seoul, South Korea.
Background: The profound impact of coronavirus disease (COVID-19) has led to an increased demand for sustainable pandemic governance practices. This study explored emerging hybrid governance practices that provide robust evidence on how to address the complex challenges of pandemics effectively. South Korea, which was severely affected by COVID-19, has implemented a novel governance approach using a whole-of-nation (WoN) model.
View Article and Find Full Text PDFHIV Med
November 2024
U.S. Centers for Disease Control and Prevention (CDC), Hanoi, Vietnam.
Background: The introduction of universal test and treat (UTT) strategy has demonstrated a reduction in attrition in some low-resource settings. UTT was introduced in Ethiopia in 2016. However, there is a paucity of information regarding the magnitude and predictors of attrition from HIV treatment in Ethiopia.
View Article and Find Full Text PDFSci Rep
August 2024
School of Medicine, Konkuk University, Chungju, 27478, Korea.
Atopic dermatitis (AD) presents significant therapeutic challenges due to its poorly understood etiology. Eosinophilia, a hallmark of allergic inflammation, is implicated in AD pathogenesis. Interleukin-10 (IL-10)-producing regulatory B (Breg) cells exhibit potent anti-inflammatory effects.
View Article and Find Full Text PDFJ Clin Endocrinol Metab
August 2024
Department of Family Medicine, Asan Medical Center, University of Ulsan College of Medicine, Korea.
Context: The number of young Koreans using antidepressants and antianxiety medications is increasing.
Objective: Studies evaluating the association between these medications and weight gain are limited. We investigated this association among Korean young adults.
Medicine (Baltimore)
August 2024
Department of Pharmacy, College of Pharmacy, Chosun University, Gwangju, Republic of Korea.
This study aimed to investigate the association between high-sensitivity C-reactive protein (hs-CRP) levels, as a surrogate marker of systemic inflammation, and renal function among Korean adults grouped by age, sex, and body mass index. This study analyzed data obtained from the Korea National Health and Nutrition Examination Survey 2015 to 2018, a cross-sectional and nationally representative survey conducted by the Korean Centers for Disease Control and Prevention. Of the 22,451 subjects included in this study, 19,607 (87.
View Article and Find Full Text PDFJ Am Chem Soc
August 2024
Department of Chemistry, College of Natural Science, Seoul National University, Seoul 08826, Republic of Korea.
A novel reactivity toward C-F bond functionalization has been developed, which could be designated as fluorine atom transfer (FAT). A photoexcited state of an -heterocyclic carbene-ligated boryl radical exhibits a transcendent reactivity, capable of activating chemically inert carbon-fluorine bonds through homolysis. Combined experimental and computational studies suggest that the ligated boryl radical species directly abstracts a fluorine atom from the organofluoride substrates to provide valuable carbon-centered radicals.
View Article and Find Full Text PDFCell Rep
August 2024
Louma G. Laboratory of Epigenetic Research, Faculty of Medicine, University of Iceland, Reykjavik, Iceland; McKusick-Nathans Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Pediatrics, Johns Hopkins University, Baltimore, MD, USA; Department of Genetics and Molecular Medicine, Landspitali University Hospital, Reykjavik, Iceland. Electronic address:
The mild hypothermia response (MHR) maintains organismal homeostasis during cold exposure and is thought to be critical for the neuroprotection documented with therapeutic hypothermia. To date, little is known about the transcriptional regulation of the MHR. We utilize a forward CRISPR-Cas9 mutagenesis screen to identify the histone lysine methyltransferase SMYD5 as a regulator of the MHR.
View Article and Find Full Text PDFChem Commun (Camb)
August 2024
Advanced Batteries Laboratory, Department of Chemistry, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea.
Nanosize-controlled antimony oxides (SbO) that can effectively scavenge fluoride species in a cell are incorporated into a PI separator to regulate its porous structure. The incorporation of the SbO layer onto the PI separator surface prevents the internal short circuit and efficiently removes fluoride species chemical scavenging reactions, thereby resulting in stable cycling behaviors upon cycling.
View Article and Find Full Text PDFAm J Cancer Res
June 2024
Department of Obstetrics and Gynecology, Yonsei University College of Medicine Seoul 03722, Republic of Korea.
This study developed a molecular classification model for cervical cancer using machine learning, integrating prognosis related biomarkers with clinical features. Analyzing 281 specimens, 27 biomarkers were identified, associated with recurrence and treatment response. The model identified four molecular subgroups: group 1 (OALO) with Overexpression of ATP5H and LOw risk; group 2 (LASIM) with low expression of ATP5H and SCP, indicating InterMediate risk; group 3 (LASNIM) characterized by Low expression of ATP5H, SCP, and NANOG, also at InterMediate risk; and group 4 (LASONH), with Low expression of ATP5H, and SCP, Over expression of NANOG, indicating High risk, and potentially aggressive disease.
View Article and Find Full Text PDFMalar J
July 2024
Program in Public Health, University of California at Irvine, Irvine, CA, 92697, USA.
Background: To interrupt residual malaria transmission and achieve successful elimination of Plasmodium falciparum in low-transmission settings, the World Health Organization (WHO) recommends the administration of a single dose of 0.25Â mg/kg (or 15Â mg/kg for adults) primaquine (PQ) combined with artemisinin-based combination therapy (ACT), without glucose-6-phosphate dehydrogenase (G6PD) testing. However, due to the risk of haemolysis in patients with G6PD deficiency (G6PDd), PQ use is uncommon.
View Article and Find Full Text PDFLung
August 2024
Division of Allergy and Clinical Immunology, Department of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43 gil, Songpa-gu, Seoul, 05505, Korea.
Background: Gene expression can provide distinct information compared to clinical biomarkers in the context of longitudinal clinical outcomes in asthma patients.
Objective: This study examined the association between the gene expression levels of upstream (IL-25, IL-33, and TSLP) and downstream cytokines (IL-5, IL-4, and IL-13) in the T2 inflammatory pathway with a 12-month follow-up of exacerbation, lung function, and steroid use.
Methods: Transcriptomic sequencing analysis was performed on peripheral blood mononuclear cells from 279 adult asthmatics.
Chem Commun (Camb)
July 2024
Department of Chemistry, College of Natural Science, Kyonggi University, 154-42, Gwanggyosan-ro, Yeongtong-gu, Suwon, 16227, Republic of Korea.
A highly efficient asymmetric [3+2] and [4+2]-annulation of cyclic -sulfonyl ketimines with γ- or δ-hydroxy-α,β-unsaturated ketones has been developed. This innovative reaction employs an organocatalytic approach, utilizing a hydrogen-bonding bifunctional squaramide-based catalyst. The process enables precise synthesis of chiral polyheterotricyclic oxazolidines and 1,3-oxazinane derivatives, revealing intricate structures with incorporated chiral quaternary centers.
View Article and Find Full Text PDFArch Pharm Res
July 2024
College of Pharmacy and Research Institute of Pharmaceutical Sciences, Woosuk University, Wanju, 55338, Republic of Korea.
Regulated cell death (RCD) pathways, such as pyroptosis, apoptosis, and necroptosis, are essential for maintaining the body's balance, defending against pathogens, and eliminating abnormal cells that could lead to diseases like cancer. Although these pathways operate through distinct mechanisms, recent genetic and pharmacological studies have shown that they can interact and influence each other. The concept of "PANoptosis" has emerged, highlighting the interplay between pyroptosis, apoptosis, and necroptosis, especially during cellular responses to infections.
View Article and Find Full Text PDFSmall
October 2024
Department of Chemistry, College of Natural Science, Seoul National University (SNU), Seoul, 08826, Republic of Korea.
Demands for green ammonia production increase due to its application as a proton carrier, and recent achievements in electrochemical Li-mediated nitrogen reduction reactions (Li-NRRs) show promising reliability. Here, it is demonstrated that F-containing additives in the electrolyte improve ammonia production by modulating the solid electrolyte interphase (SEI). It is suggested that the anionic additives with low lowest unoccupied molecular orbital levels enhance efficiency by contributing to the formation of a conductive SEI incorporated with LiF.
View Article and Find Full Text PDFBMC Med Inform Decis Mak
July 2024
National Evidence-based Healthcare Collaborating Agency (NECA), 3-5F 400, Neungdong-ro, Gwangin-gu, Seoul, 04933, Republic of Korea.
Background: Linkage errors that occur according to linkage levels can adversely affect the accuracy and reliability of analysis results. This study aimed to identify the differences in results according to personally identifiable information linkage level, sample size, and analysis methods through empirical analysis.
Methods: The difference between the results of linkage in directly identifiable information (DII) and indirectly identifiable information (III) linkage levels was set as III linkage based on name, date of birth, and sex and DII linkage based on resident registration number.