Journal of Capital Medical University ›› 2022, Vol. 43 ›› Issue (2): 269-274.doi: 10.3969/j.issn.1006-7795.2022.02.018

• Basic Research • Previous Articles     Next Articles

Relationship between polymorphism and mutation of LRP5 and SOST gene with bone metabolism in postmenopausal type 2 diabetic mellitus women in Shihezi,Xinjiang

Song Limin1, Li Siyuan2, Li Jun1*, Zhao Huirong1, Li Jiajia3, Wang Shuang4   

  1. 1. Department of Endocrinology and Metabolism,the First Affiliated Hospital of College of Medicine,Shihezi University,Shihezi 832000,Xinjiang Autonomous Region, China;
    2. Department of Histology and Embryology, College of Medicine,Shihezi University,Shihezi 832000,Xinjiang Autonomous Region, China;
    3. Department of Endocrinology and Metabolism,the Second People's Hospital of Nanyang, Nanyang 473012,Henan Province, China;
    4. Department of Endocrinology and Metabolism,Shanghai Yangpu Central Hospital,Shanghai 200090, China
  • Received:2021-09-28 Online:2022-04-21 Published:2022-04-14
  • Contact: *E-mail:xjlijun@163.com
  • Supported by:
    Regional Innovation Guidance Plan of Xinjiang Bingtuan (2018BB040), Achievements Transformation and Technology Extension Project of Shihezi University (CGZH201911), Bingtuan Science and Technology Breakthrough Plan Project in the Field of Social Development (2021AB031).

Abstract: Objective To explore the relationship between SOST gene and low density lipoprotein 5 (LRP5) gene polymorphisms and mutations and bone metabolism in postmenopausal T2DM women in Shihezi area, and to provide reference for the occurrence of postmenopausal T2DM with osteoporosis (OP). Methods The subjects were divided into two groups: normal bone mass group and abnormal bone mass group. Then based on whether they were with type 2 diabetes mellitus(T2DM),the patients were divided into four sub groups:normal glucose with bone mass group,normal glucose with abnormal bone mass group,T2DM group with normal bone mass group,and T2DM with abnormal bone mass group. Calcium (Ca), fasting plasma glucose (FPG), triacylglycerol(TG), alkaline phosphatase(ALP) etc. clinical biochemical data were determined by Automatic biochemical analyzer; dual-energy X-ray absorptiometry (DXA) method to detect bone mineral density (BMD); and the polymorphisms of the LRP5 and SOST gene were detected by time-of-flight mass spectrometry (TOF-MS). Results (1)The rs901825 polymorphism of the LRP5 genotype distribution was statistically significant (P<0.05) in group D compared with group A. The rs7125942 polymorphism of the LRP5 genotype distribution was statistically significant (P<0.05) in group B compared with group A. (2)In group D, at the SOST rs10534024 site, BMD of TCC.DEL/TCC.TCC genotype (mutant) was lower than that of DEL.DEL genotype (wild-type)(0.69±0.13 vs 0.76±0.10,P<0.05); LRP5 gene rs7125942 locus, on TG, CC genotype (wild type) and CG genotype (mutant type) were 4.12±0.79 and 3.22±1.04, respectively, the former was significantly higher (P<0.01); In group B, at the SOST rs851054 site, TG of GG genotype (wild-type) was higher than that of AG/AA genotype (Mutant) (2.11±1.19 vs 1.30±0.80,P<0.05). (3)Interaction analysis showed that the interaction between rs851054 of SOST gene and rs7125942 of LRP5 gene affected BMD(femoral neck) (P<0.05). The interaction between SOST gene and LRP5 gene has an effect on BMD (femoral neck) (P<0.01). Multiple linear regression analysis found rs10534024 of SOST gene, TG and body mass index were positively correlated with BMD(L1-4). Rs7125942 of LRP5 gene and menopause duration were negatively correlated with BMD (femoral neck). Conclusion The polymorphism and frequency distribution of LRP5 gene rs901825 and rs7125942 in postmenopausal women in Shihezi may be related to bone metabolism; The genetic mutation of rs7125942 locus of LRP5 gene may be related to lipid metabolism of postmenopausal women. The mutation of rs10534024 of SOST gene may be related to BMD in postmenopausal women in Shihezi. The interaction between SOST gene and LRP5 gene is a risk factor for BMD (femoral neck) reduction.

Key words: LRP5 gene polymorphism, SOST gene polymorphism, type 2 diabetes mellitus, osteoporosis, bone mineral density, postmenopausal women

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