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Table 1 Human nucleus pulposus tissue sampling

From: Recombinant human SIRT1 protects against nutrient deprivation-induced mitochondrial apoptosis through autophagy induction in human intervertebral disc nucleus pulposus cells

 

Pfirrmann grade II

Pfirrmann grade IV

P value

(n = 9)

(n = 23)

Mean age (yr)

13.6 ± 1.5

39.8 ± 11.5

<0.01

Sex (male:female)

2:7

16:7

<0.01

Diseases

Idiopathic scoliosis: 9

Lumbar disc herniation: 13

 

Lumbar spinal stenosis: 10