Table 2. Differentially expressed miRNAs in NP tissues from IDD and controls.

miRNAs	Training set		Validation set
	Fold change	P	Fold change	P
Hsa-miR-587	12.6	0.007**	11.8	0.005**
Hsa-miR-29-3p	14.8	0.002**	10.6	0.31
Hsa-miR-425-5p	6.3	0.18	-	-
Hsa-miR-802	8.6	0.25	-	-
Hsa-miR-151-3p	9.2	0.38	-	-
Hsa-miR-1193	5.8	0.15	-	-
Hsa-miR-760	7.5	0.41	-	-

NP, nucleus pulposus; IDD, intervertebral disc degeneration; Hsa: human; ** P < 0.01.