Expression of ANGPTL4 in Nucleus Pulposus Tissues Is Associated with Intervertebral Disc Degeneration

Table 2

The mRNA expression of ANGPTL4 in NP tissues of different IVDD grades.

Pfirrmann grades	II	III	IV	V
	4	44	65	8
ANGPTL4 mRNA expression ()					0.287

: sample size; : correlation coefficient; SD: standard deviation. .