Fig. 8From: Correlation between the fatty infiltration of paraspinal muscles and disc degeneration and the underlying mechanismProtein expression of TNF in the lumbar disc and multifidus between mild- and severe-degeneration groups. Expression of TNF of the lumbar disc in severe-degeneration group was significantly higher than that in mild-degeneration group. Expression of TNF of the multifidus in severe-degeneration group was significantly higher than that in mild-degeneration group. *P < 0.05Back to article page