Urine collections were obtained for measurement of urinary albumin excretion (UAE) at week 4 in S1P3+/+ (wild type, WT) and S1P3–/– mice after streptozotocin (STZ)-induced diabetes. Open bars, control group; black bars, vehicle-treated diabetes group; and gray bar, diabetes group treated with FTY720 (0.3 mg/kg, oral gavage). Data are means ± s.e.m. *P < 0.05 compared with control; +P < 0.05 compared with vehicle-treated diabetes group. Blood glucose (BG) values are shown below the bars for each group.