APOL1 and focal segmental glomerulosclerosis: In the assessment of the prognosis of de novo post-kidney transplant collapsing focal segmental glomerulosclerosis (cFSGS), Santoriello et al. demonstrated that recipients of kidneys from donors with APOL1 high-risk genotypes independently predicted poorer graft outcomes relative to grafts harboring APOL1 low-risk genotypes [21].