MYH9 and focal segmental glomerulosclerosis: Polymorphisms in myosin heavy chain 9 (MYH9) gene on chromosome 22 have been shown to be associated with a risk for focal segmental glomerulosclerosis (FSGS), HIV-associated nephropathy CKD with admixed nondiabetic kidney disease, hypertension-associated ESRD, and nondiabetic etiologies of ESRD [17–20].