Foot and ankle surgery : official journal of the European Society of Foot and Ankle Surgeons · 2017
Relationship of vitamin D receptor gene polymorphisms with susceptibility, surgical outcome and prognosis of hallux valgus in a Chinese Han population.
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Tao Tianqi, Jiang Yiqiu, Li Wang, Li Yang, Du Jing, Gui Jianchao
Аннотация
BACKGROUND: This study aimed to identify the relationship between the vitamin D receptor (VDR) BsmI gene polymorphism and risk factors, surgical outcome and prognosis of hallux valgus (HV).
METHODS: A case-control study was performed on a cohort of 236 HV patients and 236 controls in a Chinese Han population. Detection of the VDR BsmI/G2A polymorphism was performed using restriction fragment length polymorphism-polymerase chain reaction.
RESULTS: We detected a statistically significant difference in the allele distribution of the BsmI polymorphism between cases and controls (p<0.01). Significant loss of hallux valgus angle (HVA) and intermetatarsal angle (IMA) correction was only noted in patients with the bb genotype during the 2-year follow-up period (p<0.01). The average American Orthopaedic Foot and Ankle Society (AOFAS) scores at the 2-year follow-up were decreased in both groups when compared with those at the 6 month follow-up, and 1.45 points more decrease in patients with the bb genotype was observed as compared to those with the BB and Bb genotypes (p<0.0001). The average visual analogue scales (VAS) also had the tendency with more pains in the bb genotype group (p<0.0001). Furthermore, larger numbers of transfer metatarsalgia were found in patients with the bb genotype upon 2-year follow-up (p=0.049).
CONCLUSIONS: We report the first candidate gene polymorphism associated with susceptibility, surgical outcome and prognosis of HV in a Chinese Han population. Moreover, development of genetically-based method to predict the surgical outcome accurately and individualized therapy for HV are warranted.
METHODS: A case-control study was performed on a cohort of 236 HV patients and 236 controls in a Chinese Han population. Detection of the VDR BsmI/G2A polymorphism was performed using restriction fragment length polymorphism-polymerase chain reaction.
RESULTS: We detected a statistically significant difference in the allele distribution of the BsmI polymorphism between cases and controls (p<0.01). Significant loss of hallux valgus angle (HVA) and intermetatarsal angle (IMA) correction was only noted in patients with the bb genotype during the 2-year follow-up period (p<0.01). The average American Orthopaedic Foot and Ankle Society (AOFAS) scores at the 2-year follow-up were decreased in both groups when compared with those at the 6 month follow-up, and 1.45 points more decrease in patients with the bb genotype was observed as compared to those with the BB and Bb genotypes (p<0.0001). The average visual analogue scales (VAS) also had the tendency with more pains in the bb genotype group (p<0.0001). Furthermore, larger numbers of transfer metatarsalgia were found in patients with the bb genotype upon 2-year follow-up (p=0.049).
CONCLUSIONS: We report the first candidate gene polymorphism associated with susceptibility, surgical outcome and prognosis of HV in a Chinese Han population. Moreover, development of genetically-based method to predict the surgical outcome accurately and individualized therapy for HV are warranted.