IL6 and stroke disorder: Within 24 h of symptom onset, the expression of miRNA‐9, ‐124 and ‐134 was positively correlated to poor prognosis of stroke patients assessed through the National Institutes of Health Stroke Scale (NIHSS), infarct volume and serum levels of interleukin‐6 (IL‐6) (Ji et al., 2016; Zhou et al., 2018).