Sweating aggravates itch in atopic dermatitis, but the mechanism is unclear. In this study, we examined the involvement of type I hypersensitivity in the aggravation of atopic dermatitis by sweating. Skin tests with autologous sweat were positive in 56 of 66 patients (84.4%) with atopic dermatitis, but only in 3 of 27 healthy volunteers (11.1%). Sweat samples from both patients and healthy volunteers induced varying degrees of histamine release from basophils of patients with atopic dermatitis. However, the histamine release was impaired by removal of IgE on the basophils. Incubation of basophils with myeloma IgE before sensitization with serum of patients blocked the ability to release histamine-induced sweat. IgE antibody against antigen(s) in sweat may be present in serum of patients with atopic dermatitis. Key words:
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http://dx.doi.org/10.1080/000155502320624050 | DOI Listing |
Vet Clin North Am Small Anim Pract
December 2024
Gulf Coast Veterinary Specialists, 8042 Katy Freeway, Houston, TX 77024, USA. Electronic address:
Background: Lebrikizumab demonstrated statistically significant improvements in patients with moderate-to-severe atopic dermatitis at week 16 with a durable response up to week 52.
Objective: To investigate the efficacy of lebrikizumab-treated patients at 52 weeks who did not achieve the ADvocate1 and ADvocate2 protocol-defined response criteria (≥75% improvement in the Eczema Area and Severity Index [EASI 75] or Investigator Global Assessment [IGA] 0/1 with ≥2-point improvement without rescue medication) after 16 weeks.
Methods: This analysis includes observed data for patients who received lebrikizumab every 2 weeks during the induction period, did not achieve the protocol-defined response, and subsequently received open-label lebrikizumab treatment.
J Invest Dermatol
December 2024
Department of Dermatology and Allergy, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany. Electronic address:
Atopic dermatitis (AD) is characterized by a complex epidermal barrier deficiency and exaggerated immune responses dominated by type-2-mechanisms with variable contributions of additional immune axes. Interleukin (IL)-13 is overexpressed in AD skin and a key driver of both barrier dysfunction and inflammation. We here prospectively studied the effects of IL-13 inhibition with tralokinumab on cutaneous transcriptome profiles using RNA sequencing of biopsies from 16 moderate-to-severe AD patients obtained at baseline, week 2 and week 16.
View Article and Find Full Text PDFClin Med (Lond)
December 2024
St John's Institute of Dermatology, Guy's and St Thomas' NHS Foundation Trust.
Atopic eczema (eczema; also known as atopic dermatitis) is a chronic inflammatory skin condition. The burden of eczema can be very substantial with significant itch, skin pain, secondary infection, sleep disturbance and psychological distress. Eczema is common in pregnancy.
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