Loss of function and overexpression studies were performed via transfection with miR-146a mimic/inhibitor in cultured BV-2 cell lines and intrahippocampal injection of miR-146a agomir/antagomir before surgery/anesthesia to identify the role of miR-146a in neuroinflammation and cognitive impairment.
An enriched environment prevents diabetes-induced cognitive impairment in rats by enhancing exosomal miR-146a secretion from endogenous bone marrow-derived mesenchymal stem cells.
A functional polymorphism in the promoter region of microRNA-146a is associated with the risk of Alzheimer disease and the rate of cognitive decline in patients.