Publications by authors named "Min Seok Ham"
What type of face mask should we choose in coronavirus disease 2019 pandemic considering photoprotective effectiveness?
Photodermatol Photoimmunol Photomed
November 2022
Article Synopsis
- - The study highlights the effectiveness of face masks in reducing the spread of COVID-19 and examines their ability to provide photoprotection against harmful light rays, particularly when worn for long periods.
- - Researchers tested 12 popular types of face masks, measuring how much ultraviolet A (UVA), visible light (VL), and infrared A (IR-A) could penetrate them, with black KF94 and surgical masks showing near-total blockage of light.
- - Findings suggest that color and type significantly affect the photoprotective properties of masks, recommending the use of black, multi-layered respirators for better protection, especially for individuals with skin conditions sensitive to sunlight.
Background: Several experimental methods for evaluating dermal structures exist; however, most of these are not used in dermatology clinics because of cost and functional limitations.
Objective: To propose a simple, non-invasive method for dermal structure evaluation using a green light-emitting diode (LED) with cross-polarized light (CPL) imaging and compare the quality of the images taken using either green or white LED.
Materials And Methods: Skin specimens were taken from fifteen cadavers.
Article Synopsis
- Decellularization offers ECM scaffolds for tissue regeneration but often weakens the structure, limiting its use in soft organs.
- The CASPER technique enhances decellularization by using hydrogels to protect ECM integrity, preserving its complex structures and functions.
- CASPERized tissues can be recellularized and successfully implanted without causing inflammation, making them suitable for studying cell-ECM interactions and potential organ transplantation.
In this study, the stimulatory effects of different lactic acid bacteria strains, and their subcellular fractions, on the THP-1 cell line were evaluated. Lactobacillus plantarum was found in particular to induce high levels of IL-23p19 mRNA, but it moderately induced TNF-alpha production. IL-10 production was not entirely affected by L.
View Article and Find Full Text PDFThe new integration vector for Lactobacillus, pJC4, was developed using the extracellular endoglucanase A gene (celA) of Clostridium thermocellum as a screening marker. pJC4 was transformed into four Lactobacillus species, Lb. johnsonii, Lb.
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