Fig. 4From: Correlation between the HIF-1α/Notch signaling pathway and Modic changes in nucleus pulposus cells isolated from patients with low back painRepresentative protein expression of HIF-1α and Notch receptors/target genes in nucleus pulposus cells under hypoxic conditions (1% O2). GAPDH was used as the loading control. Values are expressed as the mean ± SEM of three individual experiments. *p < 0.05, **p < 0.01; (n = 3)Back to article page