Figure 4. MicroRNAs remain understudied.
(a) The number of articles (as of April 2017) for each miRNA from miR-1 to miR-100. Many miRNAs have very few related published papers. (b) Published articles about miRNAs highlighted in this review, in the context of inflammation (black bar), the nervous system (light grey), and total papers (dark grey). Many of the top immunomodulatory miRNAs are under-studied, highlighting that the miRNA-neuroinflammation field is in its infancy.