Role of Bone Morphogenetic Protein 2 Polymorphisms in Bone Mineral Density after the Start of Treatment with Atorvastatin

Association between Bone Morphogenetic Protein 2 Gene Polymorphisms and Skeletal Fluorosis of The Brick-tea Type Fluorosis in Tibetans and Kazakhs, China

To investigate the potential association between BMP2 single nucleotide polymorphisms (SNPs) and brick-tea-type skeletal fluorosis risk in cross-sectional case-control study conducted in Sinkiang and Qinghai, China, a total of 598 individuals, including 308 Tibetans and 290 Kazakhs, were enrolled. Using the standard WS/192-2008 (China), 221 skeletal fluorosis cases were diagnosed, including 123 Tibetans and 98 Kazakhs. Logistic regressions 2 analysis did not find the association between SNPs (Rs235764, Rs235739 and Rs996544) and skeletal fluorosis. Genetic models, linkage disequilibrium (LD) and haplotype analysis were not found to be associated with risk of skeletal fluorosis after adjustment by age and sex (P>0.05).Our data suggested that Rs 235764, Rs 235739 and Rs 996544 were not linked susceptibility for skeletal fluorosis in our cross-sectional case-control study.

The Association Between BMP-2, UQCC1 and CX3CR1 Polymorphisms and the Risk of Developmental Dysplasia of the Hip

OBJECTIVE

Developmental dysplasia of the hip (DDH) is a complicated skeletal disease ranging from subluxation to complete dislocation of the hip as a result of insufficient development of the acetabulum and femur. To date, numerous genes such as C-X3-C motif chemokine receptor 1 (CX3CR1), ubiquinol-cytochrome c reductase complex assembly factor 1 (UQCC1) and growth/differentiation factor 5 (GDF5), have been investigated to elucidate the underlying genetic etiology. Turkish population is one of the communities where DDH patients frequently observed, but almost no study has been conducted to elucidate the genetic etiology. In our study, we aimed to investigate the polymorphism of CX3CR1 rs3732378 and UQCC1 rs6060373, which have been shown to be associated with DDH in different populations. In addition, we aimed to investigate the BMP-2 rs235768 polymorphism which has not been investigated in the etiology of DDH.

METHODS

Overall, 168 subjects (68 participants in the patient group, 100 participants in the control group) were investigated. The participants with following evidence and symptoms were excluded from the two groups: any systemic syndrome, another congenital anomaly, hereditary diseases, breech presentation, history of oligohydramnios, swaddling and high birth weight (> 4000 g). 3 single-nucleotide polymorphisms (SNP) were examined by qRT-PCR method.

RESULTS

For CX3CR1 rs3732378 polymorphism, significant differences were observed in genotypes and allele frequencies (p < 0.0001). This condition was associated with a 12-fold increased risk in recessive modeling and 75-fold increased risk in dominant modeling. There was no significant relationship between DDH and the other two polymorphisms.

CONCLUSIONS

Our work is the first study to investigate DDH and genetic polymorphisms in Turkish population where DDH is observed quite frequently. It is also the first study to investigate the relationship between BMP-2 rs235768 polymorphism and DDH. Our study revealed a clear relationship between CX3CR1 rs3732378 polymorphism and DDH in Turkish population.