Publications by authors named "Dong-Wook Lee"

Tick-borne encephalitis virus (TBEV) causes neurological disease in humans, with varied clinical severity influenced by the viral subtype. TBEV is endemic to Mongolia, where both Siberian and Far-Eastern subtypes are present. is considered the main vector of TBEV in Mongolia; although, the virus has also been detected in species.

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Chloroplasts, distinctive subcellular organelles found exclusively in plant species, contain three membranes: the outer, inner, and thylakoid membranes. They also have three soluble compartments: the intermembrane space, stroma, and thylakoid lumen. Accordingly, delicate sorting mechanisms are required to ensure proper protein targeting to these sub-chloroplast compartments.

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Recent studies have indicated potential health risks associated with microplastics (MPs) exposure, including alterations in blood coagulation homeostasis. This cross-sectional study aimed to quantitatively examine MPs in human blood and assess their association with coagulation markers. We recruited 36 healthy adults, collected whole blood samples, and analyzed MPs using Fourier-transform infrared (µ-FTIR) spectroscopy.

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  • - Recent advancements in nanophotonics have led to new methods of light-matter interactions at the nanoscale, vital for applications like optical encryption and color displays, but face challenges in energy-efficient tuning and light interaction strength.
  • - The introduction of electrochromic nanopixels made with hybrid nanowires and polyaniline (PANI) allows for dual optical capabilities, enabling a color change from red to green and blue while operating at low voltage levels suitable for existing technology.
  • - By optimizing light-matter interaction through PANI's transition properties and scaling up production to larger wafers, these devices can encrypt multiple bits of data—up to 10 bits per unit cell—demonstrating significant potential for advanced optical data storage and
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  • Salinity negatively impacts plant growth and crucial processes like photosynthesis, making it difficult to enhance crop tolerance to abiotic stress due to a trade-off where resistance often reduces growth.
  • The study discovered the plastocyanin gene (PaPC) from the Antarctic moss Polytrichastrum alpinum, which boosted photosynthesis and salt tolerance in Arabidopsis thaliana without harming growth.
  • PaPC showed superior effects in enhancing yield potential and photosynthetic efficiency in both Arabidopsis and rice under stress, demonstrating its value as a genetic resource for developing resilient crops.
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The light irradiation to the plant chloroplasts drives NADPH and ATP synthesis in the stroma via the electron transport chains within the thylakoid membranes. Conventional methods for assessing photosynthetic light reactions are often invasive or require specific conditions. While detection markers do not significantly affect plant growth itself, developing a method for the real-time and non-invasive detection of NADPH is a highly impactful and important research area in plant physiology and biochemistry.

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Objectives: The global prevalence of non-alcoholic fatty liver disease (NAFLD) in adolescents has increased. In addition to childhood obesity, environmental risk factors, such as heavy metals that are known to be involved in hepatotoxicity, play role in NAFLD occurrence. However, their association with NAFLD remains unclear.

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  • A study examined how early life exposure to fine particulate matter (PM) and nitrogen dioxide (NO) affects thyroid function in children, focusing on their levels of thyrotropin, triiodothyronine, and free thyroxine.
  • Results indicated that increases in PM exposure during the first trimester were linked to lower thyrotropin levels in children at ages 4 and 6.
  • Conversely, childhood PM exposure was positively associated with higher thyrotropin levels at ages 4 and 6 and negatively related to free thyroxine levels at age 8, suggesting the importance of timing in understanding these effects.
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  • ERCP is a complex medical procedure that improves access but can lead to serious complications, emphasizing the need for quality management to ensure safety.
  • The Korean Society of Pancreatobiliary Endoscopy created a set of quality indicators specifically for ERCP in Korea, based on observations from foreign standards and expert reviews.
  • This tailored approach aims to enhance the overall quality and safety of ERCP procedures in the country, addressing local medical environments and needs.
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As COVID-19 has become endemic, SARS-CoV-2 variants are becoming increasingly diverse, underscoring the escalating importance of global genomic surveillance. This study analyzed 86,762 COVID-19 samples identified in the Republic of Korea from September 2022 to November 2023. The results revealed a consistent increase in the prevalence of the XBB variants following the dominance of BN.

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Objectives: This study explored the association of emotional labor and workplace violence with health-related productivity loss (HRPL).

Methods: We used the initial dataset from a survey known as the Korean Work, Sleep, and Health Study, an ongoing nationwide panel study initiated in 2022. To assess emotional labor, the study included 2386 workers who worked in customer service.

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Background: Evidence linking environmental toxicants to sleep quality is growing; however, these associations during pregnancy remain unclear. We examined the associations of repeated measures of urinary phthalates in early and late pregnancy with multiple markers of sleep quality among pregnant women.

Methods: The study population included 2324 pregnant women from the Korean Children's Environmental Health Study.

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  • Iridium is a crucial but expensive anode catalyst in proton exchange membrane water electrolysis (PEMWE), leading to challenges when trying to reduce its usage due to increased anode polarization.
  • A new anode catalyst layer made from one-dimensional iridium nanofiber allows high-performance operation (3 A cm at 1.86 V) with very low iridium loading (0.07 mg cm) and maintains effectiveness even without a platinum-coated transport layer.
  • The success of this nanofiber catalyst is attributed to its favorable electronic properties that eliminate issues related to electron transport at the interface, demonstrating the potential for optimizing materials in low-iridium PEMWE applications.
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Background: Previous reports showed that age and socioeconomic factors mediated health-related unemployment. However, those studies had limitations controlling for confounding factors. This study examines age and socioeconomic factors contributing to health-related unemployment using propensity score matching (PSM) to control for various confounding variables.

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This study aimed to determine the effects of indoor environment (IE) and outdoor air pollutants (OAPs) in residential areas on acute exacerbation (AE) in patients with severe asthma. A total of 115 participants were recruited. To characterize IE, we used structured questionnaires and estimated OAP concentrations using a land-use regression model.

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Background: This study investigated the association of prenatal and early childhood exposure to air pollution with epigenetic age acceleration (EAA) at six years of age using the Environment and Development of Children Cohort (EDC Cohort) MATERIALS & METHODS: Air pollution, including particulate matter [< 2.5 µm (PM) and < 10 µm (PM) in an aerodynamic diameter], nitrogen dioxide (NO), ozone (O), carbon monoxide (CO), and sulfur dioxide (SO) were estimated based on the residential address for two periods: 1) during the whole pregnancy, and 2) for one year before the follow-up in children at six years of age. The methylation levels in whole blood at six years of age were measured, and the methylation clocks, including Horvath's clock, Horvath's skin and blood clock, PedBE, and Wu's clock, were estimated.

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  • Endoscopic ultrasound (EUS) interventions have advanced significantly, primarily due to the development of metal stents, especially biflanged short metal-covered stents like lumen-apposing metal stents (LAMS).
  • LAMS are frequently utilized for EUS-guided drainage in conditions like pancreatic fluid collections and are also applied in gallbladder drainage and gastroenterostomy procedures.
  • The review examines recent innovations in self-expandable metal stents (SEMS) for EUS-guided interventions and highlights related research findings.
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Background: After the coronavirus disease 2019 pandemic, the widespread adoption of working from home, or teleworking, has prompted extensive research regarding its effects on work productivity and the physical and mental health of employees. In this context, our study aimed to investigate the association between working from home and health-related productivity loss (HRPL).

Methods: An online survey was conducted with a sample of 1,078 workers.

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  • Lumen-apposing metal stents (LAMSs) were studied against plastic stents for treating infected walled-off necrosis (WON), focusing on their safety and efficacy.
  • The study included 46 patients, finding no significant difference in the total number of endoscopic necrosectomy procedures required between the two groups, but LAMS showed a higher clinical success rate at 8 weeks.
  • LAMS treatment led to no adverse events, while one patient with a plastic stent experienced significant bleeding.
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Advancements in the treatment and management of patients with cancer have extended their survival period. To honor such patients' desire to live in their own homes, home-based supportive care programs have become an important medical practice. This study aims to investigate the effects of a multidimensional and integrated home-based supportive care program on patients with advanced cancer.

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  • Recent studies link endocrine-disrupting chemicals (EDCs) to issues with placental growth and function, which could cause complications in fetal development, particularly asymmetric growth restriction.
  • This study focused on pregnant women at a hospital in Seoul and analyzed urine and blood samples to measure exposure to specific EDCs, particularly bisphenol-A (BPA), monoethyl phthalates, and perfluorooctanoic acid.
  • Results revealed that higher levels of BPA in both mothers and fetuses correlated with abnormal growth patterns in fetuses, suggesting that BPA exposure could contribute to asymmetric fetal growth restriction.
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Objectives: Excess mortality associated with long-term exposure to fine particulate matter (PM2.5) has been documented. However, research on the disease burden following short-term exposure is scarce.

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Background: Perforation is one of the most serious complications of endoscopic retrograde cholangiopancreatography (ERCP). Conventional nonsurgical endoscopic treatments including intravenous antibiotic administration and plastic endoscopic biliary drainage are generally approved for the treatment of ERCP-related Stapfer type II perforation (perivaterian type). Biliary covered metal stent placement has recently been reported to have favorable outcomes in ERCP-related Stapfer type II perforations.

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Endoscopic retrograde cholangiopancreatography (ERCP) is a procedure that requires significant experiences and skills and has various procedure-related complications, some of which can be severe and even result in the death of patients. Expanding ERCP availability has the advantage of increasing accessibility for patients. However, ERCP poses a substantial risk if performed without proper quality management.

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