A study in mice demonstrated that the miR-665 is significantly upregulated in the traumatized cortex following controlled cortical impact-induced traumatic brain injury, being listed among the 50 most up-regulated miRNAs [Meissner et al. DOI:10.1089/neu.2015.4077]. In rhesus macaques subjected to whole thorax irradiation, the miR-665 was identified as a key feature in a predictive model for the future development of pleural effusion, achieving 100% accuracy in forecasting this complication at Day 21 post-exposure [May et al. DOI:10.1038/s41598-022-16316-x]. In a separate study in rats, the miR-665 was downregulated in plantaris muscle tissue in response to hindlimb unloading [Song et al. DOI:10.1097/BCR.0000000000000444].