Publications by authors named "Jae-Youl Cho"

Sensitive skin (SS) is associated with discomfort, including burning, stinging, and itching. These symptoms are often exacerbated by environmental factors and personal care products. In this genome-wide association study (GWAS), we aimed to identify the genetic variants associated with SS in 1690 Korean female participants; 389 and 1301 participants exhibited sensitive and non-sensitive skin, respectively.

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Ethnopharmacological Relevance: Traditional herbal medicine books "Shin Rhong Bon Cho Kyung" and "Hyang Yak Jip Sung Bang" mentioned that Bletilla striata (Thunb.) Rchb.f.

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Inflammation is a vital immune defense mechanism regulated by Toll-like receptors (TLRs) and the nuclear factor-kappa B (NF-B) pathway. TANK-binding kinase 1 (TBK1) is central to immunity and inflammation and influences antiviral responses and cellular processes. However, the precise role of TBK1 in modulating the NF-B pathway through interactions with other proteins, such as spleen tyrosine kinase (Syk), remains poorly understood.

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Fibroblast growth factor (FGF) is involved in the progression of glioma, a most common type of brain tumor, and breast tumors. In this study, we aim to evaluate the effects of the inhibitor PP2 on cell proliferation and migration in glioma and breast tumor cells, and to characterize the molecular mechanisms involved in these processes. The inhibitory effect of PP2 on the tumorigenic potential of C6 glioma and MDA-MB-231 cells was examined by proliferation, migration, and invasion assays, and apoptotic analysis.

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Methyltransferase-like (METTL)18 has histidine methyltransferase activity on the RPL3 protein and is involved in ribosome biosynthesis and translation elongations. Several studies have reported that actin polymerization serves as a Src regulator, and HSP90 is involved in forming polymerized actin bundles. To understand the role of METTL18 in breast cancer and to demonstrate the importance of METTL18 in HER-2 negative breast cancer metastasis, we used biochemical, molecular biological, and immunological approaches (breast tumor cell lines), (tumor xenograft model), and in samples of human breast tumors.

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Background: Korean red ginseng extract (KRGE) (Family: Araliaceae) is one of the most widely used traditional herbs in Asia. Multiple studies have shown that KRGE has anti-inflammation, anti-fatigue, anti-obesity, anti-oxidant, and anti-cancer effects.

Methods: Sprague-Dawley rats were divided into five groups for PTU-induced hypothyroidism and six groups for LT4-induced hyperthyroidism.

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Blue light, a high-energy radiation in the visible light spectrum, was recently reported to induce skin pigmentation. In this study, we investigated the involvement of TRPV1-mediated signaling along with OPN3 in blue light-induced melanogenesis as well as its signaling pathway. Operating downstream target of OPN3 in blue light-induced melanogenesis, blue light activated TRPV1 and upregulated its expression, resulting in calcium influx.

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Article Synopsis
  • - Aortic dissection (AD) is a serious cardiovascular condition that requires immediate treatment, and researchers are exploring the use of nucleic acid drugs for gene-targeting capabilities to help combat it.
  • - This study highlights the effectiveness of an antagomir targeting a specific piRNA (HAAPIR) in reducing vascular remodeling associated with AD, demonstrating improvement in survival rates in mice through key biological pathways (Mef2D and MMP9).
  • - Green tea-derived nanovesicles are used to deliver the antagomir orally, enhancing stability and transport to targeted sites in the aorta, making HAAPIR a promising candidate for AD prevention and treatment, which may open new avenues for cardiovascular therapies.
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There is increasing interest in hair loss treatment because a growing number of people affected. Lecomte is known for its anticancer effects, but its potential for preventing hair loss has not been researched. Therefore, this study focused on the hair loss prevention effects of Lecomte ethanol extract (Nk-EE).

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Ethnopharmacological Relevance: Picrasma quassioides (D. Don) Benn is a vascular plant belonging to the genus Picrasma of Simaroubaceae family and grows in Korea, China, India, Taiwan, and Japan. Picrasma quassioides extract has been reported to have anti-inflammatory, anti-bacterial, and anti-cancer properties.

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Ethnopharmacological Relevance: Millingtonia hortensis L.f., commonly known as tree jasmine or Indian cork tree, is native to South Asia and Southeast Asia.

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Constitutive explorations indicate a correlation between circular RNAs (circRNAs) and cardiovascular diseases. However, the involvement of circRNAs in endothelial recuperation and in-stent restenosis (ISR) remains underexplored. CircTMEM165 has first been reported to be highly expressed in hypoxic human umbilical vein endothelial cells (HUVECs).

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The gut microbiota and barrier function play important roles in bone health. We previously demonstrated that chronic glucocorticoid (GC)-induced bone loss in mice is associated with significant shifts in gut microbiota composition and impaired gut barrier function. Korean Red Ginseng (KRG, Meyer, Araliaceae) extract has been shown to prevent glucocorticoid-induced osteoporosis (GIO) in a subcutaneous pellet model in mice, but its effect on gut microbiota and barrier function in this context is not known.

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Background: Recently, plant-derived exosome-like nanoparticles (PDENs) have been isolated, and active research was focusing on understanding their properties and functions. In this study, the characteristics and molecular properties of ginseng root-derived exosome-like nanoparticles (GrDENs) were examined in terms of skin protection.

Methods: HPLC-MS protocols were used to analyze the ginsenoside contents in GrDENs.

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Article Synopsis
  • Urban Particulate Matter (UPM) contributes to skin aging and inflammation by activating specific skin cell receptors, particularly the TRPV1 channel.
  • Oleic acid, a type of unsaturated fatty acid, demonstrates protective effects against UPM-induced skin damage by inhibiting key signaling pathways like AhR and TRPV1.
  • The study suggests that oleic acid helps reduce inflammation and promotes cell growth in skin cells exposed to UPM by lowering the activity of harmful molecules and proteins linked to damage and aging.
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Skin is the largest and outermost organ in the human body; it serves as a vital defense mechanism against various external threats. Therefore, it is crucial to maintain its health through protection against harmful substances and adequate moisture levels. This study investigates the anti-inflammatory, antioxidant, and moisturizing properties of Oxyceros horridus Lour.

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The immune system protects our body from bacteria, viruses, and toxins and removes malignant cells. Activation of immune cells requires the onset of a network of important signaling proteins. Methylation of these proteins affects their structure and biological function.

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Ethnopharmacological Relevance: Connarus semidecandrus Jack (Family: connaraceae) is a medicinal plant known for its wide distribution throughout Southeast Asia. Renowned for its diverse therapeutic properties, it has been traditionally used for treating fever, skin irritation, and colic.

Aim Of The Study: Numerous individuals suffer from skin issues, including wrinkles, hyperpigmentation, and inflammation, due to environmental factors.

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Protein lysine methyltransferases (PKMTs) play crucial roles in histone and nonhistone modifications, and their dysregulation has been linked to the development and progression of cancer. While the majority of studies have focused on the oncogenic functions of PKMTs, extensive evidence has indicated that these enzymes also play roles in tumor suppression by regulating the stability of p53 and β-catenin, promoting α-tubulin-mediated genomic stability, and regulating the transcription of oncogenes and tumor suppressors. Despite their contradictory roles in tumorigenesis, many PKMTs have been identified as potential therapeutic targets for cancer treatment.

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Background: Protopanaxatriol (PPT) is an important ginsenoside produced by ginseng, a tonic plant used in many areas. PPT has beneficial effects against many disease states including inflammation, diabetes, and cancer. However, PPT's protective effects on skin integrity have been rarely studied.

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A versatile hydrogel was developed for enhancing bioactive wound healing by introducing the amphiphilic GHK peptide (GHK-C16) into a photo-crosslinkable tyramine-modified hyaluronic acid (HA-Ty). GHK-C16 self-assembled into GHK nanofibers (GHK NF) in HA-Ty solution, which underwent in situ gelation after the wound area was filled with precursor solution. Blue light irradiation (460-490 nm), with riboflavin phosphate as a photoinitiator, was used to trigger crosslinking, which enhanced the stability of the highly degradable hyaluronic acid and enabled sustained release of the nanostructured GHK derivatives.

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Article Synopsis
  • A new eco-friendly method using solid-state vibration ball milling is introduced for making metal nanoparticles (MNPs) with dextran (Dx) as a reducing and stabilizing agent.
  • This synthesis allows for size-controlled nanoparticles with consistent quality while avoiding solvents and harsh chemicals, conducted at normal temperatures.
  • The resulting dextran-based MNPs show promising catalytic activity and biocompatibility, suggesting potential uses in industrial and biomedical fields, including cancer treatment.
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Inflammation is a protective mechanism against harmful stimuli. There are two types of inflammation, acute and chronic, and severe diseases such as cardiovascular disease and cancer can be caused by chronic inflammation. Therefore, this research was conducted to discover new anti-inflammatory drugs.

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