Variation in levels of platelet miRNAs. Levels of individual human platelet miRNAs are shown, arbitrarily ordered from lowest to highest expression (unpublished data). As examples, the expression levels of miRNA-150, miRNA-155, miRNA-126, and miRNA-146a are highlighted in green. A total of 750 human miRNAs were profiled from leukocyte-depleted platelet RNAs from 19 human volunteers using the miRCURY LNA Array, Version 11.0 (Exiqon). Expression levels ranged over 4 orders on magnitude. The horizontal dashed line indicates background level.