476 results match your criteria: "Dongshin University.[Affiliation]"

Molecular regulatory effect of the ergot alkaloid methylergometrine on the α3β4 nicotinic acetylcholine receptor.

Biochem Biophys Res Commun

December 2024

Department of Biotechnology and Department of Integrative Food, Bioscience and Biotechnology (BK21 FOUR), Chonnam National University, Gwangju, 61186, South Korea. Electronic address:

Methylergometrine has widely been used pharmacologically to treat conditions such as pain, addiction, vasoconstriction, migraines, and Parkinson's disease. Despite its side effects, it is used as a therapeutic agent and research material for various diseases based on its natural potential; however, the regulatory effect of its interaction with the nicotinic acetylcholine receptor (nAChR) has not yet been investigated. The α3β4 nAChR is an ion channel essential for neurotransmission within the sympathetic, parasympathetic, and autonomic nervous systems.

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The effect of platelet-derived growth factor-aa (PDGFA) conjugated with low-molecular-weight protamine (LMWP) on hair loss improvement effect.

Biochem Biophys Res Commun

January 2025

Department of Pharmaceutical & Cosmetics, Dongshin University, 185, gunjae-ro, Naju, Jeonnam, 58245, Republic of Korea. Electronic address:

Platelet-derived growth factor-AA (PDGFA) is known to play an important role in hair loss and hair growth by involving in the anagen phase of the hair follicle growth cycle. In this study, we synthesized skin-permeable recombinant low-molecular-weight protamine (LMWP)-conjugated PDGFA (LMWP-PDGFA) by linking LMWP to the N terminus of PDGFA. We evaluated the hair loss improvement effect, wound healing efficacy, and skin permeability of LMWP-PDGFA.

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Article Synopsis
  • Breast cancer survivors often struggle with low sleep quality, decreased quality of life, and fatigue during long-term treatment; yoga has been suggested as a potential remedy but the ideal amount is unclear.
  • A systematic review of 32 studies with over 2400 participants showed that yoga significantly improves fatigue, sleep quality, and quality of life, highlighting a U-shaped relationship for fatigue and quality of life.
  • The findings indicate that an optimal yoga dose for reducing fatigue and enhancing quality of life is about 510 METs-min/week, while sleep quality improves notably at doses over 160 METs-min/week.*
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  • - The study investigates the effects of microneedle patches attached to specific acupuncture points on improving Parkinson’s disease (PD) symptoms and restoring immune function, as immune dysfunction is a major contributor to neuroinflammation in PD.
  • - In a PD mouse model, microneedle patches showed significant improvement in motor skills, reduced neuronal death, and lowered neuroinflammation compared to sham patches over a 14-day period.
  • - The research indicates that the microneedle patches help restore the disrupted immune response by correcting the CD4+/CD8+ ratio and reducing harmful cytokine levels in the brain and blood, providing a potential new treatment approach for PD.
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Introduction: Precise identification of acupuncture points (acupoints) is essential for effective treatment, but manual location by untrained individuals can often lack accuracy and consistency. This study proposes two approaches that use artificial intelligence (AI) specifically computer vision to automatically and accurately identify acupoints on the face and hand in real-time, enhancing both precision and accessibility in acupuncture practices.

Methods: The first approach applies a real-time landmark detection system to locate 38 specific acupoints on the face and hand by translating anatomical landmarks from image data into acupoint coordinates.

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Exploring the Characteristics of Gut Microbiota Associated with Depression via the Depression Assessment Scales.

J Microbiol Biotechnol

November 2024

Department of Bio and Fermentation Convergence Technology, College of Science and Technology, Kookmin University, Seoul 02707, Republic of Korea.

Depression is a prevalent mental disorder with an increasing economic burden, and its pathogenesis remains poorly understood. Given the emerging evidence linking gut microbiota to mental health, a better understanding of microbial profiles associated with depression is necessary. Here, we explore the association between gut microbiota and depression by utilizing 16S rRNA amplicon sequencing and depression assessment scales, including the Hamilton Depression Rating Scale (HDRS) and the Beck Depression Inventory (BDI).

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Gremlin-2 is a novel tumor suppressor that negatively regulates ID1 in breast cancer.

Breast Cancer Res

November 2024

Department of Medical Sciences, Graduate School, Soonchunhyang University, Asan-si, 31538, Republic of Korea.

Background: Breast cancer is one of the most common cancers in women and is closely associated with obesity. Gremlin-2 (GREM2), an antagonist for bone morphogenetic proteins (BMPs), has been considered an inhibitor of adipogenic differentiation in adipose-derived stromal/stem cells. However, the role of GREM2 in breast cancer cells remains largely unknown, and its signaling mechanism has yet to be clarified.

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The Nuclear factor erythroid 2-related factor (Nrf2)/ Heme oxygenase-1 (HO-1) pathway, known for its significant role in regulating innate antioxidant defense mechanisms, is increasingly being recognized for its potential in neuroprotection studies. Derived from bee venom, melittin's neuroprotective effects have raised interest. This study confirmed that melittin specificity upregulated the weakened Nrf2/HO-1 signaling in mice brain.

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Exploring NNMT: from metabolic pathways to therapeutic targets.

Arch Pharm Res

December 2024

Department of Biomedical Science, College of Natural Science, Chosun University, Gwangju, 61452, Republic of Korea.

Cellular metabolism-related epigenetic modulation plays a pivotal role in the maintenance of cellular homeostasis. Nicotinamide N-methyltransferase (NNMT) serves as a crucial link between cellular metabolism and epigenetics by catalyzing nicotinamide methylation using the universal methyl donor S-adenosyl-L-methionine. This direct connection bridges the methylation-mediated one-carbon metabolism with nicotinamide adenine dinucleotide levels.

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Objective: This study aimed to investigate the potential associations between physical activity, sedentary behavior, and the basal metabolic rate (BMR) with post-traumatic stress disorder (PTSD), major depressive disorder (MDD), and emotional instability (EI) using bidirectional Mendelian randomization (MR). Additionally, it sought to identify key molecular mechanisms underlying emotional instability through a comprehensive bioinformatic analysis.

Methods: MR analyses utilizing genome-wide association study (GWAS) data were conducted to estimate the effects of physical activity, sedentary behavior, and the BMR on PTSD, MDD, and EI.

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Accurate Acupoint Localization in 2D Hand Images: Evaluating HRNet and ResNet Architectures for Enhanced Detection Performance.

Curr Med Imaging

November 2024

Digital of Healthcare Research Center, Institute of Information Technology and Convergence, Pukyong National University, Busan, 48513, Republic of Korea.

Introduction: This research assesses HRNet and ResNet architectures for their precision in localizing hand acupoints on 2D images, which is integral to automated acupuncture therapy.

Objectives: The primary objective was to advance the accuracy of acupoint detection in traditional Korean medicine through the application of these advanced deep-learning models, aiming to improve treatment efficacy.

Background: Acupoint localization in traditional Korean medicine is crucial for effective treatment, and the study aims to enhance this process using advanced deep-learning models.

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Managing shoulder pain typically involves the use of acetaminophen or oral nonsteroidal anti-inflammatory drugs, but prolonged use of these medications can lead to dependence and various side effects. To overcome the dose dependency and side effects of these conventional drugs, animal venoms have begun to be utilized. Among them, bee venom stands out for its powerful anti-inflammatory properties, which help relieve pain and treat chronic inflammatory conditions.

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Article Synopsis
  • Hyperuricemia, an imbalance of uric acid, leads to diseases like gout, which can be treated with drugs, although they may have side effects.
  • The study utilized both test tubes and animal models to investigate the effects of Korean red ginseng water extract (KRGWE) on hyperuricemia in mice, comparing it to traditional treatment with allopurinol.
  • KRGWE showed a dose-dependent ability to reduce serum uric acid levels by enhancing uric acid excretion genes and inhibiting reabsorption genes, also contributing to improved liver and kidney function.
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This study investigated the effects of acupuncture and warm acupuncture on the expression and mechanism of the AMP-activated protein kinase () signalling pathway associated with lipid accumulation in the liver tissue of rats with metabolic dysfunction-associated fatty liver disease (MAFLD) induced by a high-fat diet. Sprague-Dawley rats were categorised into four groups: control (CON), untreated MAFLD (MAFLD), and two MAFLD groups treated with acupuncture (ACU) and warm acupuncture (WA). The treatment groups underwent 16 application sessions over 8 weeks at the SP9 and BL18 acupoints.

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WHO reported that asthma was responsible for 455,000 deaths in 2019 and asthma patients was evaluated 262 million in May 2023. The incidence is expected to increase as the average life expectancy increases, highlighting asthma as a significant health challenge in an aging society. The etiology of asthma is linked to an imbalance of Th1 and Th2 cells, respiratory inflammation, and pulmonary cell proliferation.

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CCCP induces hepatic stellate cell activation and liver fibrogenesis via mitochondrial and lysosomal dysfunction.

Free Radic Biol Med

November 2024

MRC-OSTRC, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Chosun University, Gwangju, 61452, South Korea. Electronic address:

Article Synopsis
  • Hepatic stellate cells (HSCs) are key players in liver fibrosis, and the study investigates how CCCP, a mitochondrial uncoupler, affects mitophagy in these cells.
  • CCCP treatment leads to mitochondrial dysfunction in HSCs, evidenced by decreased mitochondrial function and increased reactive oxygen species (ROS), while also triggering mitophagy but disrupting its later stages due to lysosomal impairment.
  • The study found that CCCP elevates the fibrogenic marker plasminogen activator inhibitor-1 (PAI-1) in HSCs, which is linked to lysosomal dysfunction rather than changes in gene expression, suggesting that targeting CCCP-related pathways could be a potential strategy for treating liver fibrosis.
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Background: We aimed to ascertain the current state of and needs for virtual reality (VR)-based simulation training in the care of adult respiratory patients. Learning to care for patients with infectious respiratory disease is crucial in nurses' practical education. Thus, studies on the state of VR-based simulation-training are required.

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Background: High-intensity interval training (HIIT) can significantly improve health indicators such as cardiopulmonary function, metabolic efficiency, and muscle strength in a short period. However, due to significant physiological and metabolic differences between males and females, the effects of HIIT vary between genders. Therefore, exploring the specific impacts of HIIT on women's health is crucial.

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Therapeutic effect and molecular mechanism of the ultra-low molecule compound K on multiple myeloma.

Biomed Pharmacother

November 2024

Department of Laboratory Medicine, Chonnam National University Medical School and Chonnam National University Hwasun Hospital, Hwasun, Republic of Korea; BioMedical Sciences Graduate Program (BMSGP), Chonnam National University, Hwasun, Republic of Korea; KBlueBio, Inc., Hwasun, Republic of Korea. Electronic address:

Multiple myeloma (MM) is an incurable hematologic cancer that originates from plasma cells and occurs primarily in patients over 60. The prognosis of MM has improved after the introduction of new treatments, such as thalidomide, bortezomib, and lenalidomide. However, in recurrent and refractory MM patients, factors such as age and drug toxicity are important when choosing treatment options.

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Background: Anorexia nervosa (AN) is a significant psychological disorder influenced by environmental and genetic elements. Emerging research highlights the pivotal role of the gut microbiome in the development of diverse mental health conditions. This study aims to explore the causal effects and interactions of the gut microbiome, metabolites, immune cells, lipids, and inflammatory proteins on the risk of anorexia nervosa through mediation and multi-omics Mendelian Randomization (MR) analysis.

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An inducible sphingosine kinase 1 in hepatic stellate cells potentiates liver fibrosis.

Biochem Pharmacol

November 2024

Department of Biomedical Science, College of Natural Science, Chosun University, Gwangju 61452, Republic of Korea; Department of Integrative Biological Sciences & BK21 FOUR Educational Research Group for Age-associated Disorder Control Technology, Chosun University, Gwangju 61452, Republic of Korea; Institute of Well-Aging Medicare & Chosun University G-LAMP Project Group, Chosun University, Gwangju 61452, Republic of Korea. Electronic address:

Hepatic stellate cells (HSCs) play a role in hepatic fibrosis and sphingosine kinase (SphK) is involved in biological processes. As studies on the regulatory mechanisms and functions of SphK in HSCs during liver fibrosis are currently limited, this study aimed to elucidate the regulatory mechanism and connected pathways of SphK upon HSC activation. The expression of SphK1 was higher in HSCs than in hepatocytes, and upregulated in activated primary HSCs.

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The purpose of this study was to investigate the protective effects of 7S,15R-dihydroxy-16S,17S-epoxy-docosapentaenoic acid (diHEP-DPA) in retinal pigment epithelial (RPE) cell damage. ARPE-19 cells, a human RPE cell line, were cultured with diHEP-DPA and Bis-retinoid N-retinyl-N-retinylidene ethanolamine (A2E), followed by exposure to BL. Cell viability and cell death rates were determined.

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