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The Role of Exosomes in Medical Dermatology: Literature Review and Update.
J Cosmet Dermatol
January 2025
Clinical Research Center of the Carolinas, Charleston, South Carolina, USA.
Background: Exosomes are extracellular vesicles, composed of a phospholipid bilayer, that are primarily derived from stem cells. The contents of exosomes can be incorporated into the tissue in which they are introduced, which presents a unique therapeutic option.
Aims: Exosomes have been investigated as a treatment for a number of medical ailments, but the literature supporting these indications is inconclusive.
Transcriptomic profiling of chronic hand eczema skin reveals shared immune pathways and molecular drivers across subtypes.
J Allergy Clin Immunol
January 2025
The National Allergy Research Centre, Department of Dermatology and Allergy, Copenhagen University Hospital, Herlev-Gentofte, Hellerup, Denmark.
Background: Chronic hand eczema (CHE) is a common skin disease with different subtypes, but knowledge of the molecular patterns associated with each subtype is limited.
Objective: To characterize the CHE transcriptome across subtypes.
Methods: Using RNA-sequencing, we studied the transcriptome of 220 full-thickness skin biopsies collected from palms, dorsa, and arms from 96 patients with CHE and/or atopic dermatitis (AD) and 32 healthy controls.
A Novel Technique for the Topical Application of Botulinum Neurotoxin A to the Nasal Mucosa in Reducing Rhinitis Symptoms.
Cureus
December 2024
Anatomy, Yonsei University, Seoul, KOR.
Introduction: To date, no investigations have been published regarding the concentration, dose, and technique for a mucosal spray application of botulinum toxin A (BTA) to alleviate hypersecretory symptoms of rhinitis in humans. It is a promising option for reducing common symptoms of seasonal allergic rhinitis (AR) and idiopathic non-AR. It is safer and less painful than intranasal injections, with high reported satisfaction in reducing clinical symptoms.
View Article and Find Full Text PDFA Case of Allergic Contact Dermatitis Due to Chrysanthemum After Guselkumab Therapy for Palmoplantar Pustulosis.
Cureus
December 2024
Department of Dermatology, Asahikawa Medical University, Asahikawa, JPN.
Eczematous paradoxical reactions are commonly associated with anti-interleukin-17A (anti-IL-17A) antibodies. However, IL-23 p19 inhibitors can also cause similar cutaneous manifestations. We present a case of a 77-year-old Japanese woman with palmoplantar pustulosis (PPP), who developed eczematous lesions on her face, neck, and dorsum of the hands 10 weeks after initiating guselkumab treatment.
View Article and Find Full Text PDFSulfites: The 2024 American Contact Dermatitis Society Allergen of the Year.
Cutis
November 2024
Solbie Choi is from the Albert Einstein College of Medicine, Bronx, New York. Sarak K. Zemlok is from the University of Connecticut School of Medicine, Farmington. Dr. Yu is from the Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Boston. Dr. Adler is from the Department of Dermatology, Keck School of Medicine, University of Southern California, Los Angeles.
The American Contact Dermatitis Society (ACDS) selected sulfites as the 2024 Allergen of the Year. These common and potentially allergenic ingredients are used as preservatives and antioxidants in a variety of foods, beverages, medications, and personal care products. In this article, we review common sources of sulfite exposure, clinical manifestations of allergic contact dermatitis (ACD) to sulfites, and patch testing considerations for this emerging allergen.
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