Publications by authors named "Wooje Lee"

The purpose of this study is to develop and validate a simple unsafe behavior checklist to assess the extent of unsafe behavior among workers in an industrial setting. The checklist was developed using Focus Group Interview (FGI) and Analytical Hierarchy Process (AHP) analysis methodology. Preliminary testing was conducted with an unspecified sample and the correlation between unsafe behavior and accident experience was validated.

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Background: Job stress was found to directly increase the likelihood of accidents and indirectly increase the likelihood of accidents by lowering the safety atmosphere. Job stress has a significant impact on the safety environment, and job satisfaction is effective in reducing accident rates. Accordingly, we sought to investigate the correlation between safety level, job stress, and job satisfaction in small businesses with a high risk of industrial accidents.

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Article Synopsis
  • * As of August 18, 2022, new laws under Article 128-2 of the Occupational Safety and Health Act require employers to install rest facilities that meet specific standards across all industries.
  • * A study evaluated the implementation of these facilities, revealing younger workers' dissatisfaction, managers' greater awareness of regulations, and larger gaps in rest facility availability among smaller businesses in the service industry.
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Previous studies have investigated the health hazards caused by exposure to the noise of heavy equipment used at construction sites. Korea's Ministry of Land, Infrastructure, and Transport operates a registration system for construction machinery, and regular safety inspections are mandatory. Although workers inspecting construction machinery vehicles are exposed to unwanted noise, no noise exposure assessment has been made regarding these workers in Korea.

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Purpose: Dyslipidemia is a major health issue worldwide. There is growing interest in understanding the potential role of kimchi consumption on serum lipid profiles. However, there are limited epidemiological studies available on this topic.

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Feed has a great influence on the composition of swine manure, which is the principal cause of odor. Therefore, the purpose of this study is to simply change the shape of pig feed and control calories to find a suitable feed form for reducing the smell of swine manure. The experiment was conducted on 15 pigs from July to August 2021, and a total of three measurements were done.

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Article Synopsis
  • Kimchi is made through a process called fermentation, where special bacteria help transform the ingredients without needing to sterilize them first.
  • Scientists studied a specific type of kimchi that has been fermented for a long time and found that a dominant bacteria called Pediococcus inopinatus is mostly responsible for its unique flavor and characteristics.
  • This special bacteria has a strong defense system called CRISPR that helps it survive and thrive, allowing it to be the leading bacteria in kimchi during the final stages of fermentation.
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In a widespread social turmoil such as the Pandemic, job groups with high turnover rates and high job stress, such as the construction industry, will have a greater adverse impact than the general job group. This is to be used as basic data in preparing management plans by identifying the factors that hinder job stress and job satisfaction of construction workers. In this study, during the Pandemic period (1 September 2021 to 31 December 2021), a survey was conducted on job stress and job satisfaction among safety and health managers working at construction sites.

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Aim: To investigate the effectiveness and safety of teneligliptin over placebo in patients with type 2 diabetes (T2D) inadequately controlled by triple therapy.

Materials And Methods: This trial was a prospective, multicentre, randomized, double-blind, placebo-controlled study. The 12-week double-blind period was followed by a 12-week, open-label clinical trial.

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Diabetes mellitus is characterized by hyperglycemia. Low-grade bacterial infection with hyperglycemia in patients with diabetes is associated with atherosclerosis development. Therefore, this study hypothesized that macrophages lead to more severe diabetic complications under combined conditions of high glucose and lipopolysaccharide (LPS)-induced inflammation than under normoglycemic conditions.

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Cell-matrix interactions govern cell behavior and tissue function by facilitating transduction of biomechanical cues. Engineered tissues often incorporate these interactions by employing cell-adhesive materials. However, using constitutively active cell-adhesive materials impedes control over cell fate and elicits inflammatory responses upon implantation.

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Methyl-CpG-binding protein (MeCP2) is highly expressed in neurons. It plays an important role in the development of synapses and the formation of circuits in the central nervous system (CNS). Mutations in cause neurodevelopmental disorders and mental retardation in humans.

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MeCP2 plays a multifaceted role in gene expression regulation and chromatin organization. Interaction between MeCP2 and methylated DNA in the regulation of gene expression is well established. However, the widespread distribution of MeCP2 suggests it has additional interactions with chromatin.

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Article Synopsis
  • The study investigates how genetic variants in a specific gene region contribute to ethnic differences in the risk of Alzheimer's disease (AD) associated with the ε4 allele among various populations, including East Asians, Europeans, and African Americans.
  • Analysis of 19,398 East Asian individuals and 15,836 individuals of European ancestry revealed that certain SNPs, particularly rs405509, significantly impact AD risk, particularly among ε4 homozygotes, with risk increasing in a dose-dependent manner.
  • Results suggest that higher expression linked to specific genotypes might reduce AD risk, highlighting the importance of genetic variation in understanding ethnic disparities in AD association with the ε4 allele.
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Mammalian cells release extracellular vesicles (EVs) into their microenvironment that travel the entire body along the stream of bodily fluids. EVs contain a wide range of biomolecules. The transported cargo varies depending on the EV origin.

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Background/objective: Chronic hyperglycemia induces oxidative stress via accumulation of reactive oxygen species (ROS) and contributes to diabetic complications. Hyperglycemia induces mitochondrial superoxide anion production through the increased activity of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase. This study aimed to determine whether fisetin and luteolin treatments suppress the oxidative stress by modulating the expression of sirtuins (SIRTs) and forkhead box O3a (FOXO3a) under hyperglycemic conditions in human monocytes.

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Delphinidin possesses strong anti-oxidant, anti-inflammatory, and anti-cancer properties. Suppression of the Wnt/β-catenin signaling pathway is a potential strategy for chemoprevention and therapy. As aberrant activation of the β-catenin signaling pathway contributes to prostate cancer progression, we evaluated the effect of delphinidin on this pathway in human PC3 prostate cancer cells.

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Methyl-CpG binding protein 2 (MeCP2) is critical for proper brain development and expressed at near-histone levels in neurons, but the mechanism of its genomic localization remains poorly understood. Using high-resolution MeCP2-binding data, we show that DNA sequence features alone can predict binding with 88% accuracy. Integrating MeCP2 binding and DNA methylation in a probabilistic graphical model, we demonstrate that previously reported genome-wide association with methylation is in part due to MeCP2's affinity to GC-rich chromatin, a result replicated using published data.

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Gene silencing via RNA interference inadvertently represses hundreds of off-target transcripts. Because small interfering RNAs (siRNAs) can function as microRNAs, avoiding miRNA-like off-target repression is a major challenge. Functional miRNA-target interactions are known to pre-require transitional nucleation, base pairs from position 2 to the pivot (position 6).

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Hyperglycemia contributes to diabetes and several diabetes-related complications. Gallic acid is a polyhydroxy phenolic compound found in various natural products. In this study, we investigated the effects and mechanism of gallic acid on proinflammatory cytokine secretion in high glucose-induced human monocytes (THP-1 cells).

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During postnatal development, neuronal activity controls the remodeling of initially imprecise neuronal connections through the regulation of gene expression. MeCP2 binds to methylated DNA and modulates gene expression during neuronal development and MECP2 mutation causes the autistic disorder Rett syndrome. To investigate a role for MeCP2 in neuronal circuit refinement and to identify activity-dependent MeCP2 transcription regulations, we leveraged the precise organization and accessibility of olfactory sensory axons to manipulation of neuronal activity through odorant exposure in vivo.

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Hyperglycemia is a key feature in diabetes. Hyperglycemia has been implicated as a major contributor to several complications of diabetes. High glucose levels induce the release of proinflammatory cytokines.

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Increasing evidence supports an association between Alzheimer's disease (AD) and diabetes. Rosiglitazone, a peroxisome proliferator-activated receptor-γ (PPARγ) agonist, which is an anti-diabetic agent against type 2 diabetes, is currently in Phase III clinical trials in AD patients because rosiglitazone reduces β-amyloid (Aβ) pathology and inflammation. However, few studies have investigated whether rosiglitazone affects tau phosphorylation, another critical pathological feature of AD.

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Background: Kidney function is critical in homocysteine clearance, and plasma homocysteine level is frequently increased in patients with renal failure. On the other hand, recent studies in animals have shown that hyperhomocysteinemia induces renal injury. In this study, we determined whether hyperhomocysteinemia can be a risk factor for the development of microalbuminuria in patients with type 2 diabetes.

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Olfactory sensory axons navigate from the nasal cavity to the olfactory bulb and sort from among 1,000 different odorant receptor-expressing types to converge upon the same two or three glomeruli. To achieve this task during development, it is likely that multiple classes of regulatory molecules, including cell adhesion molecules, are involved. Cell adhesion molecules have been shown to be important in controlling axon guidance, fasciculation, and synapse formation.

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