Fig. 2.

Quantification of endogenous miRNA recovery in four biofluids. A) Relative detection levels of endogenous human miRNAs miR-122, miR-222 and miR-21 in serum, B) miR-30a and miR-92e in urine, C) miR-122 and miR-222 in perfusate, and D) miR-122 and miR-222 in bile. The mean of the levels with the RN isolation method per individual miRNA per liquid were set at 100%. Bars represent the mean ± SEM of the six individual samples. RN; Qiagen miRNeasy kit, QP; Qiazol in combination with the dr. GenTLE precipitation carrier, NG; NORGEN Total RNA isolation kit, and CU; miRCURY RNA isolation kit - biofluids