Here is a fascinating article suggesting that post-traumatic stress disorder is associated with varying levels of certain microRNAs, which can affect gene expression. Abstract:
Posttraumatic stress disorder (PTSD) affects many returning combat veterans, but underlying biological mechanisms remain unclear. In order to compare circulating micro RNA (miRNA) of combat veterans with and without PTSD, peripheral blood from 24 subjects was collected following deployment, and isolated miRNA was sequenced. PTSD was associated with 8 differentially expressed miRNA. Pathway analysis shows that PTSD is related to the axon guidance and Wnt signaling pathways, which work together to support neuronal development through regulation of growth cones. PTSD is associated with miRNAs that regulate biological functions including neuronal activities, suggesting that they play a role in PTSD symptomatology.
This altered gene expression may be linked to the mechanism of the disorder, both underscoring the seriousness of it and possibly pointing in the direction of therapy. This article was from several years ago; we will be looking for any updates.
