MC1R and focal segmental glomerulosclerosis: Shown in Figure 5, glomerular expression of MC1R is comparable and not statistically different between healthy living donors and renal patients with MN, FSGS or MCD, based on post hoc analysis of gene expression microarray data derived from the Nephroseq Ju CKD Glom dataset (Ju et al., 2013), suggesting that glomerular expression of MC1R, if any, is not augmented upon glomerular injury.