This result was consistent with our study, which demonstrated that GSK3B had considerably enhanced expression in RIF. Besides, SNRPD1, one of the key genes encoding core spliceosome constituents, and its elevated protein expression in somatic cells was associated with kidney injury and pulmonary hypertension in systemic lupus erythematosus (SLE) patients (Hu et al., 2017). The gene discussed is SNRPD1; the disease is pulmonary hypertension.