PMID: 30236204Sep 22, 2018Paper

Caspase-9 (-Ex5+32 G/A) gene polymorphism is associated with caspase-9 expression in degenerative nucleus pulposus of lumbar intervertebral disc

Xi bao yu fen zi mian yi xue za zhi = Chinese journal of cellular and molecular immunology
Zhankui JinZhengming Sun

Abstract

Objective To investigate the relationship between caspase-9 (-Ex5+32 G/A) gene polymorphisms, Schneiderman score of magnetic resonance imaging (MRI) in lumbar disc degeneration and the expression of caspase-9 in degenerative nucleus pulposus. Methods The peripheral venous blood and prominent nucleus pulposus were obtained from 105 patients with lumbar disc herniation. Genomic DNA was extracted and analyzed by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS). The caspase-9(-Ex5+32 G/A) gene polymorphisms were analyzed in all DNA samples. The expression of caspase-9 in the tissues was detected by immunohistochemical SP staining. The t test was used to analyze the difference between the genotypes and the expression of caspase-9 in intervertebral disc nucleus. Pearson correlation analysis was performed to assess the association between caspase-9 expression in nucleus pulposus and the MRI score of lumbar disc. Results MRI analysis showed that the patients with AA genotype had the highest MRI scores, but there were no significant differences in MRI scores among patients with AA, GA, and GG genotypes. Compared with GG genotype carriers, AA genotype carriers had a statistically significant dif...Continue Reading

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