MAL-PDT is effective in the treatment of moderate to severe inflammatory facial acne. Further studies are warranted to optimize this promising procedure.

Mismatches between skin pigmentation and modern lifestyle continue to challenge our naked skin. One of our responses to these challenges is the development and use of sunscreens. The management of sunscreens has to balance their protective effect against erythema, photocarcinogenesis and photoageing owing to the potential toxicity of the ultraviolet (UV) filters for humans and the environment. The protection against UV radiation offered by sunscreens was recently standardized in the European Union (EU) based on international harmonization of measurement techniques. Four different categories of sun protection have been implemented along with recommendations on how to use sunscreen products in order to obtain the labelled protection. The UV filters in sunscreens have long been authorized for use by the EU authority on the basis of data from studies on acute toxicity, subchronic and chronic toxicity, reproductive toxicity, genotoxicity, photogenotoxicity, carcinogenicity, irritation, sensitization, phototoxicity and photosensitization as well as on environmental aspects. New challenges with respect to the safety of UV filters have arisen from the banning of animal experiments for the development of cosmetics. Future debates on sunscreens are likely to focus on nanoparticles and environmental issues, along with motivation campaigns to persuade consumers to protect their skin. However, more efficient sunscreen use will also continue to raise questions on the benefit in preventing vitamin D synthesis in the skin induced by sunlight.

No abstract

Lack of nurse‒physician collaboration in wound care may result in prolonged healing times for patients. In order to facilitate future professional collaboration, undergraduate learning activities in interprofessional education (IPE) have been proposed. The aim of this study was to investigate nursing and medical students' attitudes and perceptions towards each other's future professions and interprofessional collaboration in wound care. Nursing and medical students took part in an interprofessional learning activity about wound care. Data were collected using the Jefferson Scale of Attitudes towards Physician‒Nurse Collaboration questionnaire to student groups before and after an IPE activity (pooled n = 221). Focus groups were conducted to deepen the knowledge about students' attitudes and perceptions. The results showed high scores on the attitude scale (mean 53.2, possible maximum = 60) both before and after IPE, indicating positive attitudes towards nurse‒physician collaboration. Nursing students scored higher than medical students both pre-IPE (p < 0.001) and post-IPE (p = 0.006). However, no difference on scale scores could be identified between pre- and post-IPE. The following themes emerged in the analysis of focus group discussions: "Approaching patient care from different perspectives," "Need for collaboration and clear professional roles in practice," "Structures hindering future collaboration," and "IPE as a tool for professional practice and roles." The shared learning activity provided insights into the other profession's competence. This kind of learning activity may increase future interprofessional collaboration, and thus, improve wound care.