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Title: Effect of ANXA2 gene single nucleotide polymorphism (SNP) on the development of osteonecrosis in Indian sickle cell patient: A PCR-RFLP approach
Authors: Pandey, Sanjay
Ranjan, Ravi
Pandey, Sweta
Mishra, Rahasya Mani
Seth, Tulika
Saxena, Renu
Keywords: ANXA2
PCR-RFLP Restriction digestion
Issue Date: Jul-2012
Publisher: NISCAIR-CSIR, India
Abstract: Osteonecrosis is a serious complication in sickle cell patients. The common sites of the necrosis are femoral head, head of the humerus and acetabulam. Annexin A2 (ANXA2) protein mainly functions in bone formation and bone resorption. Alteration of ANXA2 gene may affect the manifestations of osteonecrosis in the patients. PCR-RFLP is a common applicable technique for the detection of known mutation/polymorphisms. Here we are presenting application of the PCR-RFLP technique for determination of the ANXA2 gene single nucleotide polymorphism frequency and their clinical association among Indian sickle cell patients. Five known SNPs of ANXA2 gene (rs7170178, rs73435133, rs73418020, rs72746635 and rs73418025) were determined using the HpyCH4V, DdeI, HpyCH4III and Sau 961 restriction enzyme respectively. Restriction enzyme DdeI was common for rs73435133 and rs72746635 SNP. Only the rs7170178 SNP was detected among patient and control and the other four SNPs were absent in the studied groups. The frequency of ANXA2 gene rs7170178 SNP (A/G, G/G) was comparatively higher in sickle cell patients than controls and it was clinically associated with sickle cell osteonecrosis. The P value of heterozygotes (A/G) and homozygotes (G/G) genotypes were <0.001 and 0.001 respectively, which were highly significant. This study established the application of PCR-RFLP in detection of ANXA2 SNPs in sickle cell patients.
Description: 455-458
ISSN: 0975-1009 (Online); 0019-5189 (Print)
Appears in Collections:IJEB Vol.50(07) [July 2012]

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