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  • Title: [Expression of calmodulin in the articular process of vertebrae of adolescent idiopathic scoliosis patients].
    Author: Qiu GX, Li J, Liu Y, Wu ZH, Zhao ZG.
    Journal: Zhonghua Yi Xue Za Zhi; 2006 Aug 08; 86(29):2017-20. PubMed ID: 17064542.
    Abstract:
    OBJECTIVE: To investigate the expression of calmodulin in the articular process of vertebrae of adolescent idiopathic scoliosis (AIS) patients and congenital scoliosis (CS) patients and its possible effects on the pathogenesis of AIS. METHODS: Nine AIS patients aged 13 - 17, and 10 patients of CS, aged 11 - 18, underwent orthopedic surgery. Specimens of the inferior articular process from the apical vertebrae and upper end vertebrae discarded during operation were collected from the AIS patients and specimens of the. Inferior articular process from the upper end vertebrae wee collected from the CS patients. Immunohistochemistry was used to detect the protein expression of calmodulin, and in situ hybridization was adopted to examine the mRNA expression of calmodulin. RESULTS: Calmodulin were expressed in the bone cells. There was no difference between the expression of calmodulin at the concave side and convex side, or between the apical vertebrae and end vertebrae. The expression of calmodulin of the AIS group was significant lower than that of the CS group (P < 0.05). The result of immunohistochemistry and that of in situ hybridization corresponded with each other. CONCLUSION: The expression of calmodulin in the articular process of vertebrae of AIS patients is low, suggesting that it plays a role in the development and progression of AIS.
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