by Lori Solomon Janus tyrosine kinase (JAK) signaling may be involved in the pathogenesis of polymyalgia rheumatica (PMR), and tofacitinib may be an effective treatment, according to a pilot study published online June 29 in PLOS Medicine. Xinlei Ma, from Zhejiang University in Hangzhou, China, and colleagues examined pathogenetic features of PMR and assessed the efficacy...
