[Expression of 25-hydroxyvitamin D in serum of patients with periodontitis and rheumatoid arthritis and its correlation with these diseases].

抄録

To detect and analyze the expression level of serum 25-hydroxyvitamin D [25(OH)D], periodontal clinical indicators and immunological indicators of rheumatism in patients with periodontitis and rheumatoid arthritis (RA), and to explore the correlation between 25(OH)D and the two diseases. This study was a case-control study. According to the inclusion criteria, patients from the Department of Stomatology and the Department of Rheumatology and Immunology and healthy volunteers from the Physical Examination Center were selected from November 2018 to May 2019 in Shengjing Hospital, China Medical University respectively. The patients were divided into 4 groups: 26 patients with simple periodontitis were included in the periodontitis group; 23 patients with RA were included in the RA group; 22 patients with RA and periodontitis simultaneously were included in the RA with periodontitis group; 22 healthy volunteers were included in the healthy control group, adding up to a total of 93 cases. The general information and periodontal clinical indexes of subjects in these 4 groups were recorded. Median elbow venous blood samples were collected from fasting subjects in each group, and 25(OH)D and immunoglobulin (Ig) were measured. The disease activity scores of RA patients were recorded and the rheumatic immune indexes were determinated. Pearson correlation analysis was performed between 25 (OH) D level and periodontal indexes in subjects of 4 groups. The expression levels of rheumatoid factor [106.5(47.1, 283.8) kU/L] and C-reactive protein [20.5(13.1, 32.3) mg/L] in RA with periodontitis group were significantly higher than those in RA group [60.1(19.0, 110.0) kU/L, 14.7(3.0, 18.0) mg/L] (=-2.29, =0.022; =-2.25, =0.024). The levels of IgG and IgA in RA with periodontitis group [IgG and IgA: (16.0±4.3), (3.2± 1.3) g/L] as well as RA group [IgG and IgA: (16.3±5.5), (3.7±1.8) g/L] were significantly higher than those in healthy control group [IgG and IgA: (12.0±1.8), (2.3±0.6) g/L] and periodontitis group [IgG and IgA: (12.5±2.2), (2.0±0.7) g/L](<0.05). The level of 25(OH)D in RA with periodontitis group [(26.0±9.8) nmol/L] was significantly lower than that in periodontitis group [(35.6±8.4) nmol/L] and RA group [(32.7±8.6) nmol/L] (<0.05). The level of 25(OH)D was negatively correlated with sulcus bleeding index (=-0.43, =0.032) and clinical attachment loss (=-0.41, =0.043). Expression level of 25(OH)D was significantly decreased in patients with periodontitis and RA. There was a certain correlation between 25(OH)D and periodontitis and RA.

检测并分析牙周炎和类风湿关节炎（rheumatoid arthritis，RA）患者血清中25-羟维生素D［25-hydroxyvitamin D，25（OH）D］水平、牙周临床指标及风湿免疫指标，探讨25（OH）D与两种疾病的相关性。 本研究为病例对照研究，按纳入标准选取2018年11月至2019年5月就诊于中国医科大学附属盛京医院口腔科、风湿免疫科的患者及体检中心的健康志愿者，将患者分为4组：26例单纯牙周炎患者纳入牙周炎组；23例单纯RA患者纳入RA组；22例伴RA牙周炎患者纳入伴RA牙周炎组；22名健康志愿者纳入健康对照组。共纳入93例受试者。记录4组受试者一般信息及牙周临床指标。收集各组受试者空腹肘正中静脉血样本，对4组受试者25（OH）D及免疫球蛋白进行测定；记录RA患者疾病活动性评分，并进行风湿免疫指标测定。对4组受试者25（OH）D水平与牙周指标进行Pearson相关性分析。 伴RA牙周炎组类风湿因子［106.5（47.1，283.8）kU/L］及C反应蛋白［20.5（13.1，32.3）mg/L］的表达水平均显著高于RA组［分别为60.1（19.0，110.0）kU/L、14.7（3.0，18.0）mg/L］（=-2.29，=0.022；=-2.25，=0.024）；伴RA牙周炎组［IgG、IgA分别为：（16.0±4.3）、（3.2±1.3）g/L］及RA组IgG、IgA水平［分别为（16.3±5.5）、（3.7±1.8）g/L］均显著高于健康对照组［IgG、IgA分别为（12.0±1.8）、（2.3±0.6）g/L］和牙周炎组［IgG、IgA分别为（12.5±2.2）、（2.0±0.7）g/L］（均<0.05）；伴RA牙周炎组25（OH）D水平［（26.0±9.8）nmol/L］显著低于牙周炎组［（35.6±8.4）nmol/L］及RA组［（32.7±8.6）nmol/L］（均<0.05）；25（OH）D水平与龈沟出血指数（=-0.43，=0.032）和临床附着丧失（=-0.41，=0.043）呈显著负相关。 25（OH）D在牙周炎和RA患者中均显著降低，其与牙周炎和RA存在相关性。.