Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer).
Alopecia areata is an autoimmune disorder characterized by transient hair loss. Severity can range from distinct patches to total hair loss. In this Primer, the authors describe the underlying pathophysiology of this complex polygenic disease, as well as the epidemiology, diagnosis and management.
Patients with diabetes often have delayed wound healing, associated with excessive inflammation. Here the authors report that REG3A inhibits TLR3-driven inflammation in skin wounds, and show that REG3A is reduced in models of diabetes, which exacerbates inflammation in diabetic wounds.
Psoriasis can have a profound impact on patients' emotional and social lives. Christopher Griffiths, a dermatologist at the University of Manchester in the United Kingdom, discusses the disease's psychological fallout and its links with stress.