HNRNPA2B1 and eosinophilia-myalgia syndrome: Furthermore, HNRNPA2B1 and HNRNPC, two members of the hnRNPs family that play roles in various RNA-related processes, such as pre-mRNA splicing [33], were also found to be correlated with the severity of EU samples, regardless of different ages, races, and menstrual cycle stages in patients with EMs.