Since FABP5 has been identified as a key indicator for systemic arteriosclerosis, HT and other metabolic syndromes [40] and since ioFABP5 has been identified as a critical marker for systemic arteriosclerosis and the HT-induced retinal complication RVD [41], we speculated that the FABP5-related effect on BAB function in HNPCE cell line may also be related to systemic arteriosclerosis and HT. The gene discussed is FABP5; the disease is hematocrit.