原发性干燥综合征患者的骨代谢变化及影响因素

doi:10.3969/j.issn.1671-7171.2020.04.005

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Abstract 【Objective】 To investigate the bone status, influencing factors associated with bone mass, and bone metabolism markers during bone mass changes in patients with primary Sjogren syndrome (pSS). 【Methods】 A total of 55 patients with pSS were selected as the observation group and 50 healthy volunteers were recruited as the control group. The bone mineral density (BMD) of lumbar vertebrae and femoral neck and the bone metabolic markers such as type Ⅰ collagen C-terminal peptide cross-linking (CTX),type Ⅰ procollagen N-terminal propeptide (PINP) and osteocalcin (OC) of the two groups were compared. The correlations of bone metabolic markers with age, duration of disease, body mass index, erythrocyte sedimentation rate(ESR), C-reactive protein(CRP), complement (C3,C4 and C1q) and hormone usage were analyzed. The relationship between BMD and bone metabolism markers in patients with pSS was evaluated as well. 【Results】 The levels of BMD, PINP and OC of lumbar vertebrae and femoral neck in pSS group were lower than those in the control group, while the level of CTX in pSS group was higher than that in control group (P<0.05). The BMD of lumbar vertebrae and femoral neck in pSS group were negatively correlated with age and C1q; and the BMD of lumbar vertebrae was also negatively correlated with hormone usage (P<0.05).The level of CTX in pSS group was negatively correlated with C4 ( P<0.05) and positively correlated with hormone usage (P<0.05).The levels of PINP and OC in patients with pSS were negatively correlated with the levels of CRP and hormone usage, while the level of OC was positively correlated with C4 level (P<0.05). The level of CTX in pSS patients with osteopenia group and osteoporosis subgroup was higher than that in pSS subgroup with normal bone mass; and the levels of PINP and OC in osteoporosis subgroup were lower than those in normal bone mass subgroup. Compared to the control group, the levels of PINP and OC in normal bone mass subgroup of pSS were lower; and the difference was statistically significant (P<0.05).【Conclusion】 Patients with pSS have abnormal BMD and bone metabolism which are correlated with disease activity and hormone usage. The bone metabolic markers can evaluate the status of bone mass in pSS patients.

Key words： Sjogren's Syndrome Bone Density

Received: 05 November 2019

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R777.2

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http://journal07.magtech.org.cn/yxlcyj/EN/10.3969/j.issn.1671-7171.2020.04.005 OR http://journal07.magtech.org.cn/yxlcyj/EN/Y2020/V37/I4/495

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