BMP4 and hyperuricemia: Meanwhile, BMP-4 levels were slight higher in those with both Mets and hyperuricemia when compared to those without the corresponding complications (773.39 ± 325.79 pg/ml vs. 767.36 ± 347.20 pg/ml; 831.26 ± 340.72 pg/ml vs. 712.23 ± 309.99 pg/ml, all P > 0.05) as shown in Figs. 2 and 3.