1,098 results match your criteria: "Biology Research Institute[Affiliation]"

Background: Liver diseases remain the most important medical and biological problem. Works devoted to the study of the vitamin A role have shown conflicting results of its effect on the fibrosis development. We tested the hypothesis that an increase of the copper content in the liver, an example of which is Wilson's disease, shifts the balance in the redox system towards pro-oxidants, which leads to the antioxidant systems inhibition, including a decrease in the vitamin A content; this affects the levels of liver function regulation and the development of fibrosis.

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Pellino-1 promotes intrinsic activation of skin-resident IL-17A-producing T cells in psoriasis.

J Allergy Clin Immunol

May 2023

Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea; Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, Korea. Electronic address:

Background: Psoriasis is a chronically relapsing inflammatory skin disease primarily perpetuated by skin-resident IL-17-producing T (T17) cells. Pellino-1 (Peli1) belongs to a member of E3 ubiquitin ligase mediating immune receptor signaling cascades, including nuclear factor kappa-light-chain enhancer of activated B cells (NF-κB) pathway.

Objective: We explored the potential role of Peli1 in psoriatic inflammation in the context of skin-resident T17 cells.

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The involvement of gremlin-1 in external stress-induced melanogenesis.

J Dermatol Sci

January 2023

Department of Dermatology and Cutaneous Biology Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea. Electronic address:

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Article Synopsis
  • Minimally invasive nail unit melanoma (NUM) can be treated with functional surgery (FS) rather than amputation, which benefits patients by sparing limbs.
  • A study of 140 NUM cases revealed that factors like male sex, greater Breslow thickness (BT), and tumor characteristics (such as amelanotic color) were linked to a higher risk of recurrence and distant disease.
  • The research suggested a BT cut-off of 0.8 mm for determining recurrence risk, indicating that FS is a viable option for patients with BT below this threshold, while those with higher risks need careful monitoring and discussion with their healthcare provider.
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Effect of Baicalin on Wound Healing in a Mouse Model of Pressure Ulcers.

Int J Mol Sci

December 2022

Department of Dermatology & Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.

One of the most frequent comorbidities that develop in chronically ill or immobilized patients is pressure ulcers, also known as bed sores. Despite ischemia-reperfusion (I/R)-induced skin lesion having been identified as a primary cause of pressure ulcers, wound management efforts have so far failed to significantly improve outcomes. Baicalin, or 5,6,7-trihydroxyflavone, is a type of flavonoid which has been shown to possess a variety of biological characteristics, including antioxidative and anti-inflammatory effects and protection of I/R injury.

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7-desacetoxy-6,7-dehydrogedunin discovered by high-throughput screening system suppresses melanogenesis through ATP-P2X7 signaling inhibition.

J Dermatol Sci

December 2022

Department of Dermatology and Cutaneous Biology Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea. Electronic address:

Background: Hyperpigmented skin disorders such as melasma and lentigo are common photoaging diseases that cause cosmetic problems. The pigmentation is usually exacerbated by ultraviolet (UV) radiation, and various factors and pathways are involved in UV-mediated melanogenesis. Adenosine 5'-triphosphate (ATP), a well-known molecular unit of intracellular energy, is also regarded as a mediator of UV-mediated melanogenesis via the P2X7 purinergic receptor.

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Methicillin-resistant (MRSA) is a successful pathogen that has achieved global dissemination, with high prevalence rates in Southeast Asia. A huge diversity of clones has been reported in this region, with MRSA ST239 being the most successful lineage. Nonetheless, description of MRSA genotypes circulating in the Southeast Asia region has, until now, remained poorly compiled.

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An Exploratory In Vivo Study on the Effect of Annurca Apple Extract on Hair Growth in Mice.

Curr Issues Mol Biol

December 2022

Department of Dermatology & Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.

Article Synopsis
  • * A study conducted on C57BL/6 mice showed that daily oral administration of AAE for 21 days led to improved hair characteristics, such as length, thickness, weight, and density.
  • * The treatment increased gene expression of two important hair growth factors while suppressing 5α-reductase, suggesting that AAE may serve as a natural therapy for hair loss by enhancing the factors associated with hair growth.
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Behçet's disease (BD) is a systemic inflammatory disorder characterized by vasculitis affecting blood vessels of any caliber or type. It can present with a wide spectrum of vasculitic lesions, including erythema nodosum-like lesions and retinal vasculitis, and may also lead to larger vessel diseases, such as aortic aneurysm and deep vein thrombosis. The full etiology of BD remains unclear, but it is considered a polygenetic disease with multiple genetic risk factors that promote immune dysregulation and thrombophilia.

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Allium mongolicum Regel is a wild and sandy vegetable with unique flavours. In this study, a complete chloroplast (cp) genome of A. mongolicum was obtained (Genbank accession number: OM630416), and contained 153,609 base pairs with the GC ratio as 36.

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Orally administered collagen peptides could contribute to antiaging by replacing the degraded extracellular matrix proteins caused by photoaging. This study aimed to evaluate the efficacy and safety of low-molecular-weight collagen peptides for treating photoaged and dry skin. In this randomized, placebo-controlled, parallel-group, double-blinded trial, we randomly assigned study participants ( = 100) to either the test product group or placebo group at a 1:1 ratio for 12 weeks.

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Patients with refractory bullous pemphigoid (BP) achieve remission after rituximab treatment but require high-dose systemic corticosteroids until the remission. The aim of this retrospective study was to examine the clinical efficacy of omalizumab as an adjuvant treatment to rituximab in patients with refractory BP. Patients with BP receiving treatment with either rituximab monotherapy or rituximab plus omalizumab were considered for the study.

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Background: Data illustrating the impact of atopic dermatitis (AD) on lives of adults with AD in South Korea are limited.

Objective: To assess the AD disease severity and its impact on quality of life (QoL) in patients with AD from South Korea.

Methods: Patients with AD utilizing the specialist dermatology services of major hospitals in South Korea were assessed for disease severity using Eczema Area and Severity Index (EASI) score, for QoL using Dermatology Life Quality Index (DLQI) (for QoL), and for comorbidities and treatment experience via retrospective review of 12-month medical records.

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Potential Roles of Selectins in Periodontal Diseases and Associated Systemic Diseases: Could They Be Targets for Immunotherapy?

Int J Mol Sci

November 2022

Novel Bacteria and Drug Discovery Research Group (NBDD), Microbiome and Bioresource Research Strength (MBRS), Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Selangor Darul Ehsan, Malaysia.

Periodontal diseases are predisposing factors to the development of many systemic disorders, which is often initiated via leukocyte infiltration and vascular inflammation. These diseases could significantly affect human health and quality of life. Hence, it is vital to explore effective therapies to prevent disease progression.

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Patients with chronic itch describe their pruritus in a wide variety of ways. However, these subjective descriptions are often not taken into consideration by physicians. This study aimed to validate patients' descriptions of pruritus, and to investigate the relationship between various descriptions of pruritus and the patient burden of chronic pruritus by examining the mediating effects of sleep disturbance and sexual dysfunction on patient's quality of life, as predicted by various descriptions of pruritus.

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Background: Keratohyalin granules (KHGs) supply the critical epidermal protein constituents such as filaggrin for maintaining skin barrier function during epidermal differentiation; however, their regulating mechanism remains largely unelucidated.

Methods: To investigate the role of Ras-related protein Rab-25 (RAB25) expression in skin disease, we utilized skin specimens of patients with moderate-to-severe atopic dermatitis (AD) and healthy controls. To investigate the susceptibility of Rab25 knockout mice to AD, we established an oxazolone-induced AD model.

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A nomogram combining clinical factors and biomarkers for predicting the recurrence of high-risk cutaneous squamous cell carcinoma.

BMC Cancer

November 2022

Department of Dermatology, Gangnam Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, 63 Gil 20 Eonju-Ro, Gangnam-Gu, Seoul, 06229, Korea.

Background: Although determining the recurrence of cutaneous squamous cell carcinoma (cSCC) is important, currently suggested systems and single biomarkers have limited power for predicting recurrence.

Objective: In this study, combinations of clinical factors and biomarkers were adapted into a nomogram to construct a powerful risk prediction model.

Methods: The study included 145 cSCC patients treated with Mohs micrographic surgery.

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SAP deficiency aggravates periodontitis possibly via C5a-C5aR signaling-mediated defective macrophage phagocytosis of Porphyromonas gingivalis.

J Adv Res

August 2023

Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, Guangdong 510182, China. Electronic address:

Introduction: Serum amyloid P component (SAP) regulates the innate immune system and microbial diseases. Periodontitis is an inflammatory oral disease developed by the host immune system's interaction with the dysbiotic oral microbiome, thereby SAP could play a role in periodontitis pathogenicity.

Objectives: To investigate the role of SAP in oral microbiome modulation and peridontitis pathogenicity.

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Background: Keloid scarring is a fibroproliferative disease caused by aberrant genetic activation with an unclear underlying mechanism. Genetic predisposition, aberrant cellular responses to environmental factors, increased inflammatory cytokines and epithelial-mesenchymal transition (EMT) phenomena are known as major contributors. In this study, we aimed to identify the molecular drivers that initiate keloid pathogenesis.

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Background: Silymarin is the active component of milk thistle, which has antioxidant properties by scavenging free radicals and potential comedolytic properties.

Aims: This study aimed to assess the efficacy and safety of 0.5% silymarin-loaded antioxidant serum (SAS) used to treat mild-to-moderate acne.

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Wearable Surface-Lighting Micro-Light-Emitting Diode Patch for Melanogenesis Inhibition.

Adv Healthc Mater

January 2023

Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.

Wearable light-emitting diode (LED)-based phototherapeutic devices have recently attracted attention as skin care tools for wrinkles, acne, and hyperpigmentation. However, the therapeutic effectiveness and safety of LED stimulators are still controversial due to their inefficient light transfer, high heat generation, and non-uniform spot irradiation. Here, a wearable surface-lighting micro-LED (SµLED) photostimulator is reported for skin care and cosmetic applications.

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Objectives: To compare the effectiveness of long-pulsed alexandrite laser (LPAL) with that of pulsed-dye laser (PDL) for rosacea.

Methods: This was a single-blind randomized controlled trial on 27 patients who were clinically diagnosed with rosacea. Randomly assigned split face in each patient received four times monthly treatment of LPAL plus low-fluence Nd:YAG with the contralateral side serving as the control treated with PDL.

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