Publications by authors named "Do Yeong Kim"

Syphilis, caused by Treponema pallidum, can mimic infections like chickenpox and mpox, especially in patients with HIV, making diagnosis challenging. This case involved a 30-year-old HIV-positive man who presented with fever, sore throat, and widespread rash. He was initially suspected to have a viral illness and was therefore treated with acyclovir.

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  • The study aimed to create multilayer oil-in-water nanoemulsions using a layer-by-layer technique to improve the stability and antioxidant effects of β-carotene.
  • β-carotene was encapsulated in primary and secondary nanoemulsions, with various coatings leading to particle sizes of 92 to 110 nm and high entrapment efficiency (92-99%).
  • The multilayer emulsions showed improved bioaccessibility and antioxidant activity, significantly enhancing their effectiveness compared to the primary nanoemulsion.
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  • - This study analyzed the levels of harmful heavy metals (Pb, Cd, Hg, Me-Hg, and arsenic) in 1,186 samples of various Korean fishery products to understand their potential health risks.
  • - The quantification of these metals was achieved using advanced techniques like ICP-MS and DMA, showing reliable results that comply with recommended guidelines.
  • - Overall, the heavy metal concentrations found were lower than established safety standards, and the health risk evaluations indicated minimal risk for consumers in Korea, providing valuable data for food safety assessments.
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This study aims to develop a freshness indicator for fish products that changes color to indicate ammonia among volatile base compounds (TVB-N) generated during storage. Through an optimization experiment, we observed the indicator's color change relative to the ammonia concentration standard, finally selecting cresol red and bromocresol purple for the indicator mixture. In addition, eco-DEHCH and Breathron film were applied to the freshness indicator, considering environmental and economic values.

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The present study examined the effect of mucilage extracted from L. leaves on the emulsifying stability of bovine serum albumin (BSA)-stabilized oil-in-water (O/W) emulsions during the storage for seven days. O/W emulsions were prepared with a 90% aqueous phase containing mucilage (0-1.

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Background and Objectives: The relation of dietary n-6 fatty acid to metabolic syndrome has not been examined and clearly defined. To improve health in the general population, this study was to investigate the role of n-3 and n-6 fatty acids in the reduction in metabolic syndrome and to observe changes in the effects of these fatty acids depending on the level of insulin resistance. Materials and Methods: This cross-sectional study utilized national health and nutrition survey data from 2014 to 2016.

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  • This study focused on extracting mucilage from L. to explore its chemical makeup and functional properties, proposing potential uses across various industries.
  • The extraction method used was hot water, and analyses determined that the mucilage mainly consists of uronic acid, with notable solubility and water-holding capacities.
  • The research concluded that L. mucilage has promising applications as a hydrocolloid in food, cosmetic, and pharmaceutical industries due to its enhanced antioxidant activities and emulsion properties.
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This study analyzed four polycyclic aromatic hydrocarbons (PAHs) from frequently consumed home meal replacement (HMR) products in Korea and evaluated their chemical analysis methods. The PAHs investigated were benzo[a]anthracene, chrysene, benzo[b]fluoranthene and benzo[a]pyrene. Chrysene-d12 and benzo[a]pyrene-d12 served as internal standards.

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  • * High-performance liquid chromatography was used to measure the levels of PAHs, showing a significant decrease, especially with the highly carcinogenic benzo[]pyrene, which was not detected after treatment.
  • * The treatment did not adversely affect the quality of the sesame oil, indicating that cellulosic aerogel is an effective and eco-friendly option for reducing toxic contaminants in food products.
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  • A validated method using high-performance liquid chromatography-fluorescence detection was developed to identify polycyclic aromatic hydrocarbons (PAHs) in e-liquids, e-gases, and smokeless cigarettes.
  • The method analyzed specific PAHs in 16 commercially available smoking cessation products, finding low PAH levels in most samples, but non-ignitable cigarettes had higher concentrations.
  • The results highlight the need for further analysis of potential hazardous substances in smoking cessation aids to ensure public health safety and inform regulatory practices.
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This study focuses on the development of a nanosupport based on halloysite nanotubes (HNTs), FeO nanoparticles (NPs), and thiolated chitosan (CTs) for laccase immobilization. First, HNTs were modified with FeO NPs (HNTs-FeO) by the coprecipitation method. Then, the HNTs-FeO surface was tuned with the CTs (HNTs-FeO-CTs) by a simple refluxing method.

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The evaluation and confirmation of healing properties of several plant species of genus based on their traditional uses and the clinical claims are of utmost importance. Genus has received more attention to assess and validate the therapeutic potential and clinical approval due to its immense folk medicinal and traditional applications. Various species of genus are used in the form of herbal medicine and formulations, in treatment of diseases, including headache, fever, pneumonia, flu, geriatric, cancer, to improve memory, abdominal and back pain, cough and cold, conjunctivitis, diarrhea, heart disorder, leprosy, sexually transmitted diseases, and urinary tract disorders.

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This study was performed to investigate the effects of taste-related compounds and antioxidatve profiles of retorted samgyetang made from fresh and dried () mushrooms. A total of 48 carcasses were prepared from commercial broilers (CB; Ross, 4 weeks old) and randomly distributed into eight different treatments. Each treatment group consisted of 6 chicken carcasses made with the addition of broth in different condition and concentration of mushrooms.

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Objective: This study was conducted to investigate the effects of supplementation with rumen-protected γ-aminobutyric acid (GABA) on carcass characteristics and meat quality of Hanwoo steers.

Methods: Eighteen Hanwoo steers with an average initial weight of 644.83±12.

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Grape pomace, a most abundant and renewable wine industry waste product was utilized as a suitable reducing, capping, and stabilizing biomolecules for green synthesis of silver nanoparticles (AgNPs). The physicochemical properties of biosynthesized grape pomace extract (GPE)-AgNPs were duly appraised via UV-Visible spectroscopy, X-ray diffractometer (XRD), Fourier-transform infrared spectroscopy (FTIR), and transmission electron microscopy. The analytical studies revealed that the GPE-AgNPs were well formed and stable in nature.

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  • * Chitosan was produced through deacetylation of the isolated chitin, with high yields from both beetle species, ranging from 75.00% to 83.37%.
  • * Structural analysis showed the chitosan matched commercial standards, and it exhibited antimicrobial activity, particularly against various bacteria with inhibition zones up to 2 mm.
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β-lactoglobulin (β-lg) was covalently bonded with fucoidan through Maillard reaction at 60 °C for 96 h under 79% RH condition. The molecular characters of the conjugate were investigated using fourier transform infrared spectroscopy (FT-IR), atomic force microscopy (AFM), and circular dichroism (CD) spectroscopy. And, its thermal properties, surface activity, and zeta-potential were compared with intact β-lg, β-lg-fucoidan mixture, and fucoidan under different pH conditions.

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The solubility, thermal stability, surface activity and emulsifying properties of native bovine serum albumin (BSA), heat-treated BSA, a BSA-fucoidan mixture, and a BSA-fucoidan conjugate were assessed. Covalent linkage of BSA with fucoidan resulted in significantly (p < 0.05) high solubility after heating at 90 °C for 15 min, particularly at pH 5.

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Bovine serum albumin (BSA)-fucoidan conjugates were prepared by the Maillard reaction (60 °C and 79% relative humidity for 96 h), and were then identified by sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) and size-exclusion chromatography (SEC). Molecular characteristics of the BSA-fucoidan conjugates were investigated, using atomic force microscopy (AFM), dynamic light scattering (DLS), fluorescence spectroscopy, and circular dichroism spectroscopy. SDS-PAGE patterns provided evidence for the covalent bonding between BSA and fucoidan.

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Turnip yellow mosaic virus (TYMV) is a spherical plant virus that has a single 6.3 kb positive strand RNA as a genome. In this study, RNA1 sequence of Flock house virus (FHV) was inserted into the TYMV genome to test whether TYMV can accommodate and express another viral entity.

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Introduction: Left ventricular hypertrophy (LVH) predisposes patients to arrhythmias, but the mechanism of these arrhythmias is unclear. Here we show that hearts from spontaneously hypertensive rats (SHR) have a lower threshold for induction mechanically induced arrhythmias compared to age matched Wistar-Kyoto (WKY).

Methods: Recordings were made from isolated hearts from nine month old SHR (n = 18) and WKY (n = 17) rats.

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The present study (a) examined the question of whether gender differences in hypothetical risk decisions might be socially facilitated by the presence of gender-homogenous groups and (b) investigated the conscious and non-conscious motivators of risk-taking through the application of both explicit and implicit measures of risk attitude. Using hypothetical choice dilemma items, no gender difference was found at an individual level; however, when placed in-groups, males expressed a stronger pro-risk position than females. While males self-reported a stronger pro-risk position than did females on two explicit measures of risk-attitude, no gender differences were found on two parallel implicit measures.

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This study examined reciprocal-influence models of the association between relational self-views and peer stress during early adolescence. The first model posited that adolescents with negative self-views disengage from peers, creating stress in their relationships. The second model posited that exposure to peer stress fosters social disengagement, which elicits negative self-views.

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