scholarly journals Association of Gremlin-2 gene polymorphisms with osteoporosis risk in Chinese postmenopausal women

2020 ◽  
Vol 40 (4) ◽  
Author(s):  
Yu Feng ◽  
Lei Zhu ◽  
Yong Gu ◽  
Ling-Jun Wang ◽  
Bing-Jie Niu ◽  
...  
Keyword(s):  
Postmenopausal Women ◽  
Gene Polymorphisms ◽  
Bone Morphogenetic Protein 2 ◽  
Genotype Distribution ◽  
Bone Homeostasis ◽  
Mineral Density ◽  
Morphogenetic Protein ◽  
Increased Risk ◽  
Chinese Postmenopausal Women ◽  
Polymerase Chain

Abstract The Gremlin-2 (GREM2) plays crucial roles in modulating bone homeostasis through the bone morphogenetic protein-2 pathway. However, GREM2 gene variants in osteoporosis were less frequent in a Chinese population. Therefore, the present study recruited 310 patients with osteoporosis and 339 healthy postmenopausal women to assess the correlation of GREM2 gene polymorphisms with the risk of osteoporosis. Polymerase chain reaction (PCR) and Sanger sequencing were utilized to genotype samples. The results showed that GREM2 gene rs4454537, not rs11588607, polymorphism was significantly associated with an increased risk of osteoporosis in postmenopausal women. Moreover, stratified analyses indicated a significant association between rs4454537 polymorphisms and body mass index of <25 kg/m2. Additionally, the association between GREM2 rs4454537 polymorphism and clinical characteristics was assessed, which showed that this locus decreased the bone mineral density (BMD) in postmenopausal osteoporotic individuals. Furthermore, individuals with CC genotype appeared to have a higher GREM2 expression compared with those bearing the TT genotype of rs4454537 polymorphism. However, the genotype distribution of rs4454537 polymorphism showed no statistical difference between osteoporotic patients as a function of fracture status. In summary, GREM2 rs4454537 polymorphism decreases BMD and increases osteoporotic risk in postmenopausal women.

scholarly journals Common variants in MAEA gene contributed the susceptibility to osteoporosis in Han Chinese postmenopausal women

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Xuan Cai ◽  
Jun Dong ◽  
Teng Lu ◽  
Liqiang Zhi ◽  
Xijing He
Keyword(s):  
Postmenopausal Women ◽  
Chinese Women ◽  
Han Chinese ◽  
Blood Levels ◽  
Nucleotide Polymorphisms ◽  
Mineral Density ◽  
Association Analyses ◽  
Metabolism Disorder ◽  
Increased Risk ◽  
Chinese Postmenopausal Women

Abstract Background Osteoporosis (OP) is a complex bone metabolism disorder characterized by the loss of bone minerals and an increased risk of bone fracture. A recent study reported the relationship of the macrophage erythroblast attacher gene (MAEA) with low bone mineral density in postmenopausal Japanese women. Our study aimed to investigate the association of MAEA with postmenopausal osteoporosis (PMOP) in Han Chinese individuals. Methods A total of 968 unrelated postmenopausal Chinese women comprising 484 patients with PMOP and 484 controls were recruited. Four tag single nucleotide polymorphisms (SNPs) that covered the gene region of MAEA were chosen for genotyping. Single SNP and haplotypic association analyses were performed, and analysis of variance was conducted to test the correlation between blood MAEA protein level and genotypes of associated SNPs. Results SNP rs6815464 was significantly associated with the risk of PMOP. The C allele of rs6815464 was strongly correlated with the decreased risk of PMOP in our study subjects (OR[95% CI]=0.75[0.63-0.89], P=0.0015). Significant differences in MAEA protein blood levels among genotypes of SNP rs6815464 were identified in both the PMOP (F=6.82, P=0.0012) and control groups (F=11.5, P=0.00001). The C allele was positively associated with decreased MAEA protein levels in blood. Conclusion This case-control study on Chinese postmenopausal women suggested an association between SNP rs6815464 of MAEA and PMOP. Further analyses showed that genotypes of SNP rs6815464 were also associated with the blood level of MAEA protein.

scholarly journals Association Analysis between g.18873C>T and g.27522G>A Genetic Polymorphisms ofOPGand Bone Mineral Density in Chinese Postmenopausal Women

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Fei Wang ◽  
Yi Cao ◽  
Fang Li ◽  
Jianlin Shan ◽  
Tianlin Wen
Keyword(s):  
Postmenopausal Women ◽  
Genetic Polymorphisms ◽  
Restriction Site ◽  
Mineral Density ◽  
X Ray ◽  
Potential Association ◽  
Pcr Rflp ◽  
Chinese Postmenopausal Women ◽  
Polymerase Chain ◽  
Created Restriction Site

Several studies report that theOPGis an important candidate gene in the pathogenesis of osteoporosis. This study aimed to detect the potential association ofOPGgene polymorphisms with osteoporosis in postmenopausal women. We recruited 928 subjects containing 463 with primary postmenopausal osteoporosis and 465 healthy volunteers as controls. The BMD of neck hip, lumbar spine (L2–4), and total hip were assessed by dual-energy X-ray absorptiometry (DEXA). Through the created restriction site-polymerase chain reaction (CRS-PCR), PCR-restriction fragment length polymorphism (PCR-RFLP), and DNA sequencing methods, the g.18873C>T and g.27522G>A have been investigated. As for g.18873C>T, our data indicated that subjects with CC genotype have significantly higher BMD value than those of CT and TT genotypes (allPvalues < 0.05). As for g.27522G>A, the BMD values of subjects with GG genotype were significantly higher than those of GA and AA genotypes (allPvalues < 0.05). Our findings suggest that theOPGg.18873C>T and g.27522G>A genetic polymorphisms are associated with the decreased risk for osteoporosis in Chinese postmenopausal women.

Association between dietary phytoestrogen intake and bone mineral density varied with estrogen receptor alpha gene polymorphisms in southern Chinese postmenopausal women

2015 ◽  
Vol 6 (6) ◽  
pp. 1977-1983 ◽  
Author(s):  
Dan Luo ◽  
Yongfei Liu ◽  
Yin Zhou ◽  
Zongwei Chen ◽  
Ling Yang ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Estrogen Receptor ◽  
Postmenopausal Women ◽  
Gene Polymorphisms ◽  
Estrogen Receptor Alpha ◽  
Mineral Density ◽  
Southern Chinese ◽  
Estrogen Receptor Alpha Gene ◽  
Chinese Postmenopausal Women ◽  
Alpha Gene

The association of dietary phytoestrogen and BMD varied with ERα gene polymorphisms.

scholarly journals Retraction Note: Associations between VDR Gene Polymorphisms and Osteoporosis Risk and Bone Mineral Density in Postmenopausal Women: A systematic review and Meta-Analysis

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Liang Zhang ◽  
Xin Yin ◽  
Jingcheng Wang ◽  
Daolinag Xu ◽  
Yongxiang Wang ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Systematic Review ◽  
Postmenopausal Women ◽  
Bone Mineral ◽  
Gene Polymorphisms ◽  
Meta Analysis ◽  
Mineral Density ◽  
Vdr Gene ◽  
Vdr Gene Polymorphisms ◽  
Osteoporosis Risk

Editor's Note: this Article has been retracted; the Retraction Note is available at https://doi.org/10.1038/s41598-021-88654-1.

Tooth Eruption into the Newly Generated Bone Induced by Recombinant Human Bone Morphogenetic Protein-2

2002 ◽  
Vol 39 (4) ◽  
pp. 449-456 ◽  
Author(s):  
Atsushi Kitamura ◽  
Nobuyoshi Motohashi ◽  
Tatsuo Kawamoto ◽  
Yoshiyuki Baba ◽  
Shoichi Suzuki ◽  
...  
Keyword(s):  
Bone Morphogenetic Protein ◽  
Alveolar Bone ◽  
Treated Group ◽  
Tooth Eruption ◽  
Human Bone ◽  
Bone Morphogenetic Protein 2 ◽  
Mineral Density ◽  
Morphogenetic Protein ◽  
Human Bone Morphogenetic Protein ◽  
Recombinant Human Bone

Objective The purpose of this study was to observe tooth eruption pattern into the newly generated bone induced by recombinant human bone morphogenetic protein-2 (rhBMP-2). Method Three 12-week-old beagle dogs were used. Following wound healing of the extracted maxillary third deciduous incisor at the age of 13 weeks, a resection of maxillary alveolar bone (8 mm by 8 mm by 8 mm) was carried out, accompanied by extraction of the maxillary second incisor tooth germ. The rhBMP-2 (5 μg/100 μL or 10 μg/100 μL) was implanted in the resected area. A group that was not implanted after resection and a nonresected group were used as controls. Serial changes of the eruption pattern of the maxillary third incisor in the implanted area were observed radiographically. Oxytetracycline and calcein were employed as bone markers. Nine weeks after the implantation, the animals were sacrificed. The samples were observed histologically and analyzed using peripheral quantitative computerized tomography to acquire the bone mineral density (BMD). Results In the rhBMP-2 (5 μg/100 μL)-treated group, histological findings and the BMD of the newly generated bone were almost same as in the non-resected group. The maxillary third incisor erupted through the implanted area. However, in the rhBMP-2 (10 μg/100 μL)-treated group, more osteoinductive activity and significantly higher BMD were observed in the newly generated bone. The maxillary third incisor erupted mesially so as to avoid this implanted area. Conclusion Results showed that bone remodeling and tooth eruption through the newly generated bone appear to be dose dependent. Accordingly, proper dosage of rhBMP-2 should be determined for successful clinical application.

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