dermatology

On TikTok, the vast majority (86.8 %) of videos about sunscreen promote its use, according to a content analysis of 971 of the most-viewed videos on this topic on the platform. However, the minority (6 per cent) of videos that criticise these products generate more engagement (likes, comments and shares) on TikTok, the authors warn. This misinformation stems from “small but highly influential numbers of content producers, whose shock-provoking and “sticky” content can generate considerably and disproportionately greater attention or interaction among some viewers”, they write in PLoS Digital Health.

A CNIC research team has identified a population of skin neutrophils that reinforce the physical protection of the tissue against infection. These immune cells are known for their microbicidal role, and the study published in Nature reveals that they also produce an extracellular matrix that reinforces the physical barrier of the skin.

A higher intake of salt - as measured by the concentration of sodium in urine - is associated with an increased likelihood of atopic dermatitis, says a study published in JAMA Dermatology. The researchers used data on the amount of sodium in urine samples from more than 215,000 people in the UK, collected in a previous study. The authors suggest that restricting salt intake "may be a cost-effective and low-risk intervention" for this skin disease. 

A study to be published in the journal Actas Dermo-Sifiliográficas analyses an outbreak of ringworm that has affected hundreds of Spanish adolescents in the last two years.

A double clinical trial has analyzed the efficacy of ruxolitinib cream in treating depigmentation associated with vitiligo. The results are published in the New England Journal of Medicine.