PTPRO and focal segmental glomerulosclerosis: Fig 4B shows % podocyte depletion in relation to the FSGS score. Again no abnormality is observed below 30% podocyte depletion. FSGS is present at >50% podocyte depletion. Fig 4C and 4D show similar data using Glepp1 area as the measure of podocyte depletion.