What is the best housekeeping gene in qRT-PCR to compare the expression level of microRNAs in blood samples?

Hi, I am looking for a housekeeping gene to use as a stable endogenous control in qRT-PCR. I found has-miR-1228, RNU44, RNU48, U75 and many more. Is there any difference between them? Thanks

11 September 2014 2,510 13 View