the rbpr was also normal in all 3 groups , but the rbpr of the rp patients and their unaffected family members were significantly higher than the normal respectively ( p less than 0.001 ) , suggesting that the pigment epithelium or rod photoreceptor of the former groups were deficient in va , whether from disturbed utilization or abnormalities in their retinol-binding protein , that abnormally high feedback stimuli were sent out calling for a va supply to the target site with less retention in the liver .
C0042842
deficient
C0042839
a va