Figure 5From: Expression of silent mating type information regulator 2 homolog 1 and its role in human intervertebral disc cell homeostasis Effect of SIRT1 on the number of nucleus pulposus cells. The number of human nucleus pulposus cells following treatment with recombinant human silent mating type information regulator 2 homolog 1 (rhSIRT1). (a) Total samples (n = 11). (b) Lumbar spinal stenosis and lumbar disc herniation (n = 6). (c) Idiopathic scoliosis (n = 5).Back to article page