Publications by authors named "Young-ju Lee"

The utilization of nonlinear differential equations has resulted in remarkable progress across various scientific domains, including physics, biology, ecology, and quantum mechanics. Nonetheless, obtaining multiple solutions for nonlinear differential equations can pose considerable challenges, particularly when it is difficult to find suitable initial guesses. To address this issue, we propose a pioneering approach known as the Companion-Based Multilevel Finite Element Method (CBMFEM).

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  • The article in question has been corrected to address errors found in the original publication.
  • The DOI for the corrected article is 10.1371/journal.pone.0303758, which is a unique identifier for academic papers.
  • It emphasizes the importance of maintaining the integrity and accuracy of published research by ensuring corrections are made when necessary.
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Postoperative ileus (POI) is a delay in gastrointestinal transit following surgery that leads to various complications. There is limited understanding of its effective treatment options. CKD-495 and eupacidin are natural products licensed for treating mucosal lesions in acute and chronic gastritis; however, little is known about their effects on intestinal permeability.

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Unlabelled: Methicillin-resistant (MRSA) is a drug-resistant pathogen causing subclinical and clinical bovine mastitis. This study examined the molecular properties, biofilm formation, virulence genes, and antimicrobial susceptibility of MRSA isolates from mastitis-infected dairy cow milk in South Korea. Whole-genome sequencing of an ST22-SCC IV MRSA strain positive for Panton-Valentine leukocidin (PVL) and toxic shock syndrome toxin-1 (TSST-1) was also performed.

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Staphylococcus spp. are one of the most predominant isolates in milk samples of dairy cows with mastitis worldwide. The aims of this study were to investigate the prevalence of bacterial pathogens in bovine mastitis milk samples in South Korea and the antimicrobial resistance profiles of staphylococcal isolates.

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  • The study investigated how probiotics can help improve postoperative ileus (POI) by examining factors like intestinal permeability, inflammation, and tight junction protein expression in guinea pigs.
  • Guinea pigs undergoing surgery were divided into three groups: control, POI, and probiotic, with the probiotic group receiving treatment before surgery; results showed probiotics helped reduce inflammation and restore essential proteins in the intestines.
  • Ultimately, the findings suggest that probiotics could be a beneficial treatment option for managing POI by enhancing gut health and reducing inflammatory responses.
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Thermo-responsive hydrogels (thermogels), known for their sol-gel transition capabilities, have garnered significant interest for biomedical applications over recent decades. However, conventional thermogels are hindered by intrinsic physicochemical and functional limitations that impede their broader utility. This study introduces methacryl glycol chitosan (MGC) as a novel thermogel, offering enhanced functionality and addressing these limitations.

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We developed a new concentration kit, called the ParaEgg (PE), for easy detection trematode eggs from fecal samples in endemic areas of clonorchiasis and metagonimiasis in Korea. To create a standard of detection efficiency, 120 fecal samples were examined using the water-ether concentration method (WECM). The PE kit and Mini ParaSep (PS) kit were used to compare the detection sensitivity of 100 egg-positive and 20 egg-negative samples in WECM.

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  • A study investigated the prevalence and characteristics of Salmonella enterica Infantis (S. Infantis) carrying the pESI-like plasmid from eggs, finding it present in 78.3% of isolates analyzed.
  • Isolates with the pESI-like plasmid displayed significantly higher antibiotic resistance to various classes compared to those without it, and were all identified as extended-spectrum β-lactamase (ESBL) producers.
  • Genetic analyses revealed that pESI-positive strains carried additional resistance genes and integral genes not found in pESI-negative strains, highlighting their distinct genetic and resistance profiles.
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  • Nitric oxide (NO) plays a role in promoting blood vessel formation (angiogenesis), and this study investigates how NO-releasing nanofibers affect this process in a mouse model of hindlimb ischemia.
  • Mice treated with NO-releasing nanofibers showed improved blood flow, increased capillary density, and enhanced angiogenesis compared to those treated with non-NO-releasing control fibers.
  • The results suggest that these NO-releasing nanofibers activate a specific protein (PKG) that helps facilitate healing and blood vessel growth in ischemic conditions.
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The emergence of coronavirus disease (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) led to a pandemic, prompting rapid vaccine development. Although vaccines are effective, the occurrence of rare adverse events following vaccination highlights the necessity of determining whether the benefits outweigh the risks posed by the infection itself. The recombinant Vesicular Stomatitis Virus (rVSV) platform is a promising vector for vaccines against emerging viruses.

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Study Design: Retrospective study.

Purpose: This study aimed to evaluate how osteoporosis affected the clinical and radiological outcomes of patients who underwent anterior cervical discectomy and fusion (ACDF) with plating.

Overview Of Literature: The incidence of complications associated with implants is high when ACDF is performed in patients with poor bone quality.

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  • Egg washing in Korea has mandatory guidelines since 2020, requiring farms with over 10,000 laying hens to wash their eggs through grading and packing plants to ensure safety.
  • A study analyzed 16,800 eggs from 60 GP plants, finding that 11 plants had Salmonella on the eggshells and 12 in the egg contents, especially in eggs from hens older than 80 weeks.
  • The Salmonella serovar S. Infantis was the most common, showing multidrug resistance, leading to calls for better surveillance and management to reduce egg contamination risks.
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  • The study investigates how Salmonella, particularly the S. Infantis strain, spreads in integrated broiler farms in Korea by comparing its presence in the environment and among dead chickens over a period.
  • It found that the prevalence of Salmonella in dust and feces increased significantly from before placement to the time of depletion, with considerable rates of infection in dead chickens at different ages.
  • Notably, the research revealed that S. Infantis carrying the pESI plasmid had much higher rates of multidrug resistance and more virulence factors compared to those without the plasmid, highlighting the need for effective control measures in poultry operations.
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A simple and effective pepsin detection assay is reported based on a pepsin-susceptible peptide (PSP) reporter degradation strategy. PSP, which can be specifically cleaved by pepsin, was modified with fluorescein isothiocyanate (FITC) and biotin at the N- and C-terminals to be used as a reporter for colorimetric detection of dipsticks. A universal lateral flow dipstick consisting of a streptavidin test line for biotin binding and a sample pad immobilized with a gold-labeled polyclonal (rabbit) anti-FITC antibody was used to verify PSP-based pepsin detection.

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The initial microbial contamination of carcasses during slaughtering adversely affects spoilage and shelf life and is of global concern for food safety and meat quality. This study evaluated the hygiene and quality using the prevalence of foodborne pathogens and the level of indicator bacteria on 200 carcasses, collecting 10 from each of 20 cattle slaughterhouses in Korea. The distribution of aerobic bacterial count in carcasses was significantly highest at 2.

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Renal cell carcinoma (RCC) is the most common type of kidney cancer and includes more than 10 subtypes. Compared to the intensively investigated clear cell RCC (ccRCC), the underlying mechanisms and treatment options of other subtypes, including papillary RCC (pRCC) and chromogenic RCC (chRCC), are limited. In this study, we analyzed the public databases for ccRCC, pRCC, and chRCC and found that BIRC5 was commonly overexpressed in a large cohort of pRCC and chRCC patients as well as ccRCC and was closely related to the progression of RCCs.

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The aim of this study is to prepare redox-sensitive nanophotosensitizers for the targeted delivery of chlorin e6 (Ce6) against cervical cancer. For this purpose, Ce6 was conjugated with β-cyclodextrin (bCD) via a disulfide bond, creating nanophotosensitizers that were fabricated for the redox-sensitive delivery of Ce6 against cancer cells. bCD was treated with succinic anhydride to synthesize succinylated bCD (bCDsu).

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  • β-Lactam antibiotics are crucial for treating bacterial infections in humans and animals, and a study found they are commonly prescribed in broiler farms, especially for younger birds.
  • The study revealed high resistance among E. coli isolates to β-lactams, particularly in fecal samples, and a large percentage of these resistant strains were also multidrug-resistant.
  • Notably, a majority of the resistant isolates carried β-lactamase genes, emphasizing the importance of farm management practices to curb antibiotic use and control resistant bacteria spread.
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is a foodborne pathogen that has variable subtypes associated with human listeriosis and occurs in food and processing environments. This study was conducted to provide the genetic and phenotypic characterization of in pig carcasses and environments of slaughterhouses in Korea. A total of 22 were isolated from eight of 26 pig slaughterhouses between 2020 and 2022, and the most common serotype was 1/2c (40.

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Integrated broiler operations that allow producers to combine various biosecurity and sanitation practices account for approximately 97.6% of chicken meat production in Korea, but it is not well known about the biosecurity level or compliance with regulations for each operation. Therefore, the objective this study was to analyze the current adoption of biosecurity practices and trends in antimicrobial use in 74 farms from 5 major integrated broiler chicken operations (A-E).

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Objectives: Pig-farming systems consist of integrated or conventional farms, and many antimicrobials are used to treat bacterial infections. The objective of this study was to compare characteristics of third-generation cephalosporin resistance and extended-spectrum β-lactamase (ESBL)/pAmpC β-lactamase-producing Escherichia coli between integrated and conventional farms.

Methods: Third-generation cephalosporin-resistant E.

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Background: Side effects occurring after COVID-19 vaccination can include vertigo and dizziness. Despite its high incidence, few studies to date have assessed dizziness/vertigo after vaccination. The present study investigated the incidence of dizziness/vertigo after COVID-19 vaccination in South Korea.

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This study aimed to evaluate the positive rates for Enterobius vermicularis eggs among preschool children in Yeosu-si, Jeollanam-do, the Republic of Korea (Korea) over a period of 5 years (2017-2021). Perianal swab samples, obtained using cellotape, from 10,392 preschool children in 26 districts were examined microscopically for E. vermicularis eggs.

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  • * A study analyzed gene expression of Toll-like receptors (TLRs) and related cytokine production in DH82 canine macrophages infected with B. canis, revealing significant increases in TLRs (especially TLR 7) and specific cytokines post-infection.
  • * Findings indicate that TLRs 3, 7, and 8 play critical roles in the immune response to B. canis infection, suggesting a complex immune interaction involving various cytokines and signaling factors.
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