Table 3.

Summary of DE miRNAs detected by microarray analysis and selected for qRT-PCR validation.

miRNA	Expression in OOA samples compared to YN
	Microarray analysis	qPCR analysis
let 7b-5p	↓	↓
let 7f-1-3p	↑	↑
21-5p	↓	↓
126-3p	↓	↓
146-5p	↓	↓
150-5p	↓	↓
181-5p	↓	↓
200c-3p	↓	↓
424-3p	↓	↓
483-5p	↓	↓

OOA: old osteoarthritic; YN: young normal.