摘要
目的研究中国健康绝经后妇女的雌激素受体estrogenreceptorER基因多态性与骨密度bonemineraldensityBMD、骨代谢的关系。方法选取246名中国健康绝经后妇女,年龄44～78岁,平均61岁。运用双能X线骨吸收法分别对其腰椎L1～4和股骨股骨颈N、Ward区W、大转子T的BMD进行测量,并用生物化学的方法测其血清中钙Ca、磷P、碱性磷酸酶ALP、甲状旁腺激素PTH和降钙素CT的含量,用分子生物学的方法分析内切酶PvuⅡ、XbaⅠ限制性片段长度多态性restrictionfragmentlengthpolymorphism,RFLP,观查ER基因多态性与BMD及骨代谢的关系。RFLP用PpPvuⅡ和Xx(XbaⅠ)来表示。结果PPxx基因型BMD明显低于其它基因型。结论ER基因RFLP与绝经后妇女BMD有关,此即为中国妇女绝经后骨质疏松症发病的原因。
Objective To investigate the relationship between polymorphism of the estrogen receptor(ER) gene and bone mineral density(BMD), and bone metabolism in Chinese postmenopausal healthy women. Methods In 246 postmenopausal healthy women, aged 44-78 years (average 61 years), BMD of lumbar spine and femoral neck, Ward and trochanteric areas were measured by dual energy X ray absorptiometry. Biochemical indexes(serum Ca, P, ALP, PTH, CT)were measured and PvuⅡ and XbaⅠ restriction fragment length polymorphism(RFLP) of ER were analysed by polymerase chain reaction restriction fragment length polymorphism(PCR RFLP). The relationship between polymorphism of the ER gene and BMD, and bone metabolism were evaluated. The RFLP was represented as Pp(PvuⅡ) and Xx(XbaI). Results In the PPxx genotype, Z score values of BMD were significantly lower than those in other genotypes. Conclusion RFLP of ER gene associated with BMD in postmenopausal healthy women and this might explain the cause of postmenopausal osteoporosis in Chinese women.
出处
《中华骨科杂志》
CAS
CSCD
北大核心
2001年第9期522-525,共4页
Chinese Journal of Orthopaedics
关键词
骨质疏松
绝经后
雌激素受体
限制性片段长度多态性
骨密度
Osteoporosis, postmenopausal
Receptors, estrogen
Polymorphism, restriction fragment length
Bone density
