Apple cider vinegar soaks do not alter the skin bacterial microbiome in atopic dermatitis.

Introduction: Atopic dermatitis is a common skin disease characterized by altered cutaneous immunity in which patients often exhibit lower skin microbiota diversity compared to healthy skin and are prone to colonization by Staphylococcus aureus. Apple cider vinegar has been shown to have antibacterial effects; however, its effects on the skin microbiome have not previously been well-described.

Objectives: We aimed to examine the effects of topical dilute apple cider vinegar soaks on Staphylococcus aureus abundance, skin bacterial microbiome composition, and skin bacterial microbiome diversity in atopic dermatitis participants compared to healthy skin.

Apple cider vinegar soaks [0.5%] as a treatment for atopic dermatitis do not improve skin barrier integrity.

Background/objectives: Atopic dermatitis (AD) is a common chronic inflammatory skin condition associated with high transepidermal water loss, high skin pH, and Staphylococcus aureus skin colonization. The treatment of AD with bath additives remains highly debated. Recent evidence suggests that dilute apple cider vinegar (ACV) may improve skin barrier integrity in AD, but its safety and efficacy are not well studied.

Nasal IgE production in allergic rhinitis: Impact of rhinovirus infection.

Background: Rhinovirus (RV) infections exacerbate asthma in part by enhancing an allergic state, and these exacerbations can be mitigated via administration of anti-IgE.

Objective: We investigated the presence of local IgE production in the nose of allergic and non-allergic subjects and assessed whether this was enhanced by RV.

Methods: Local production of specific IgE was determined by comparing ratios of specific to total IgE concentrations between nasal and serum samples.