Dissecting the role of miR-21 in different types of stroke.

Stroke is an important neurological disease in which blood flow to the brain is interrupted and it is becoming an increasing non-communicable disease in developing countries. Current treatment options for stroke is modifying lifestyle practice, diabetes treatment, drugs, and other factors management, but yet no cure is available in sight for the disease, despite it requires new insight into the molecular and therapeutic targets. In general, MicroRNAs (miRNAs) are small noncoding RNAs considered as of greater biological importance and controls molecular signaling pathways in diabetic pathogenesis. Among the reported MiRNAs, MIR-21 is considered to be an important MiRNA, which is frequently elevated in many types of types of strokes, suggesting that it plays an important role in cell proliferation, and apoptosis. Until now, there is no research paper that signifying the role of miR-21 in all types of strokes and the number of studies on the different category of strokes is limited, so in this paper, we are highlighting the recent investigations related to the significance of miR-21 in different types of strokes based on the up-to-date reports. It was found that MiR-21 was found to be normally up and down regulated in all types of strokes, however; we summarize the important research findings related to the role of miR-21 in different types of strokes.