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Casticin reduces rosacea-related inflammation by inhibiting mast cell activation via Mas-related G protein-coupled receptor X2.
Inflammopharmacology
January 2025
Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xiwu Road 157, Xi'an, Shaanxi, China.
Background: Rosacea is a chronic inflammatory disease characterized by persistent erythema, papules, and pustules, mainly on the skin of the face. Rosacea is difficult to treat; therefore, identifying new treatments is crucial. Mas-related G protein-coupled receptor X2 (MRGPRX2)-mediated mast cell (MC) activation is essential in the pathogenesis of rosacea.
View Article and Find Full Text PDFOral vancomycin induced flushing syndrome in a multiple myeloma patient: A case report and review of the literature.
Medicine (Baltimore)
November 2024
Department of Clinical Pharmacy, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
Background: Patients with hematological malignancies are at high-risk of Clostridium difficile infection (CDI). Oral vancomycin is a first-line treatment for CDI. Vancomycin has been widely reported to induce flushing syndrome (also known as Red man syndrome), a well-known hypersensitivity reaction mostly occurs after intravenous administration.
View Article and Find Full Text PDFAllergic Reactivity and Memory Occur Independently of Sequential Switching Through IgG1.
Allergy
January 2025
Schroeder Allergy and Immunology Research Institute, Department of Medicine, Faculty of Health Sciences, McMaster University, Hamilton, Canada.
Allergic reactions to foods are primarily driven by allergen-binding immunoglobulin (Ig)E antibodies. IgE-expressing cells can be generated through direct switching from IgM to IgE or a sequential class switching pathway where activated B cells first switch to an intermediary isotype, most frequently IgG1, and then to IgE. It has been proposed that sequential class switch recombination is involved in augmenting the severity of allergic reactions, generating high affinity IgE, differentiation of IgE plasma cells, and in holding the memory of IgE responses.
View Article and Find Full Text PDFRetinoic Acid Regulates Allergic Inflammation via Limiting Mast Cell Activation.
Food Sci Nutr
January 2025
Department of Nutrition and Food Hygiene, School of Public Health Jilin University Changchun China.
BackgroundAllergic diseases have become one of the major public health problems to be addressed in the world today. As a tissue resident cell, mast cells are crucial in the pathogenesis of allergic diseases. Vitamin A is an important fat-soluble vitamin with immunomodulatory functions.
View Article and Find Full Text PDFThe Role of Neutrophils in Allergic Disease.
Clin Exp Immunol
December 2024
Discipline of Paediatrics, School of Medicine, Trinity College Dublin, Ireland.
Neutrophils are short-lived cells of the innate immune system and represent 50-70% of the circulating leucocytes. Their primary role is antimicrobial defence which they accomplish through rapid migration to sites of inflammation followed by phagocytosis, degranulation and the release of neutrophil extracellular traps (NETosis). While previously considered terminally-differentiated cells, they have been shown to have great adaptability and to play a role in conditions ranging from cancer to autoimmunity.
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