Total RNAs including small RNAs were isolated from MCF-7 treated with BHMC using miRNeasy kit (Qiagen, Hilden, Germany) according to manufacturer’s instructions. The quality of extracted RNA was assessed by the NanoDrop-1000 Spectrophotometer (NanoDrop Technologies Inc., Wilmington, DE, USA) and Agilent 2100 Bioanalyzer, and samples with A260/A280 ratio between 1.8 to 2.1 and an RIN value of 8 and above was used for further analysis.
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