MIR31HG and rheumatoid arthritis: Recently, more evidence has also shown that MIR31HG also participates in other diseases in addition to cancer, such as psoriasis, IgA nephropathy (IgAN), hirschsprung’s disease, rheumatoid arthritis (RA), and osteonecrosis of the femoral head (ONFH) (Cai et al., 2018; Gao et al., 2018; Yuan et al., 2020; Cao et al., 2021; Liu et al., 2022a).