APOL1 and systemic lupus erythematosus: Identified factors may include viral infections (e.g., cytomegalovirus, Epstein-Barr virus, hepatitis C virus, herpes simplex virus), autoimmune disorders (e.g., systemic lupus erythematosus (lupus), Goodpasture syndrome, polyarteritis), certain drugs (e.g., antibiotics, diuretics, chemotherapeutics) [21, 34–36], genetic mutations (e.g., (Apolipoprotein L1 (APOLI)), and unknown factors associated with idiopathic disease (e.g., minimal change disease (MCD)).