For individuals who develop an unexpected psychosis, there is something to be said for testing them for autoimmune antibodies. And something against. At the 36th Congress of the European College of Neuropsychopharmacology (ECNP) this week, the topic was worth a controversy session, where speakers presented the pros and cons of the approach. Currently used tests have a specificity of 99%. But as Ester Coutinho, consultant neurologist at the University of Coimbra, pointed out, the validity of diagnostic tests depends on the prevalence of the disorder one is looking for as well. Coutinho estimated that autoimmune psychoses account for 1% of psychoses overall.

While glucocorticoids are used as first-line therapy for Duchenne muscular dystrophy (DMD), these agents are associated with several adverse events, including accelerated bone loss and muscle atrophy. As a result, prolonged glucocorticoid treatment is one of the primary contributors to the high fracture rate in patients with DMD.

For most psychiatric illnesses, the precipitating event is mysterious. Many conditions are thought to result from a mix of genetic risk and environmental factors, but the specific trigger remains unknown. In post-traumatic stress disorder (PTSD), the environmental trigger is usually clear. In many cases, it is all the affected individuals can think about. “Intrusive reliving” of the triggering situation is one of the core features of PTSD.