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DCR3基因在特发性肺间质纤维化中的表达

发布时间:2018-04-15 05:00

  本文选题:IPF + RA-ILD ; 参考:《吉林大学》2013年硕士论文


【摘要】:研究目的: 本文通过应用酶联免疫吸附剂测定(enzyme linked immunosorbentassay,ELISA)检测血清中的DcR3基因在IPF患者、类风湿肺(RA-ILD)患者及健康体检患者血清中的表达水平,进一步证实DcR3参与肺间质纤维化形成。 研究方法: 1、实验分组(共3组): 试验组A:特发性肺纤维化(IPF)患者20例,年龄为53-74岁,平均年龄为62岁。 试验组B:类风湿肺(RA-ILD)患者20例,年龄为38-59岁,平均年龄为44岁。 对照组C:健康体检患者20例,年龄为22-47岁,平均年龄为37岁。 2、入组标准: (1)A组:特发性肺间质纤维化(IPF)患者20例,标本来源于静脉血。标本均选自2011年10月——2012年6月期间在吉林大学第二医院呼吸内科治疗的患者。IPF入组标准:1、符合2011年3月,美国胸科学会(ATS),欧洲呼吸学会(ERS)和拉丁美洲胸科学会在AMJ Respir critcare Med杂志联合发表特发性肺间质纤维化诊治循证指南的诊断标准;2、患者除外恶性肿瘤疾病;3、患者除外其他疫系统性疾病,如系统系红斑狼疮、风湿性关节炎、硬皮病等。 (2)B组:类风湿性关节炎合并肺间质损伤(RA-ILD)患者20例:标本来源于静脉血。标本均选自2011年10月——2012年6月期间在吉林大学第二医院呼吸内科治疗的患者,RA-ILD入组标准:1、符合2010年4期出版的《中国类风湿关节炎诊治指南》中风湿性关节炎的诊断标准,且伴有间质性肺损伤的患者;2、患者除外恶性肿瘤疾病。 (3)C组:健康体检患者20例,标本来源于静脉血。标本均选自2011年10月——2012年6月期间在吉林大学第二医院呼吸内科门诊体检的健康患者,,设为阴性对照组。 3、收集标本: 取入组患者的外周血3ml,离心10分钟(3000转/分)后,取血清200ul备用,将其保存于-20℃或-70℃冰柜中,使用时应注意避免反复冻融。 4、血清中DcR3蛋白检测: 酶联免疫吸附剂测定(ELISA) 5、统计方法: 所有实验所得数据均应用SPSS19.0统计软件处理,计数资料比较用χ2检验,以P<0.05为差异有统计学意义。结果用均值±标准差(x±s)表示。 结果: 1、IPF组(A组)中DcR3表达水平明显高于健康体检组(C组),两组之间存在显著差异(P0.05),有统计学意义。 2、RA-ILD组(B组)中DcR3表达水平明显高于健康体检组(C组),两组表达率之间存在显著差异(#P0.05),有统计学意义。 3、IPF组(A组)与RA-ILD组(B组),两组表达率之间不存在差异(△P>0.05),无统计学意义。 结论: 特发性肺间质纤维化患者(A组)和类风湿肺患者(B组)血清中DcR3基因表达水平,均高于健康体检患者(C组),故进一步确定DcR3基因与IPF及RA-ILD的相关性,明确DcR3基因参与肺间质纤维化的发生发展过程。但DcR3在其IPF及RA-ILD中的作用机理有待于进一步探索及研究。且实验中采用OD结果进行统计分析比阳性百分率统计分析更敏感。
[Abstract]:Objectives of the study:The expression of DcR3 gene in serum of IPF patients, rheumatoid lung disease RA-ILD patients and healthy controls was detected by enzyme linked immunosorbent Elisa. It is further proved that DcR3 is involved in the formation of pulmonary interstitial fibrosis.Research methods:1. Experimental groups (3 groups):Group A: 20 patients with idiopathic pulmonary fibrosis (IPF), aged from 53 to 74 years, with an average age of 62 years.Group B: 20 patients with rheumatoid lung disease, aged 38 to 59 years, with an average age of 44 years.Control group C: 20 healthy physical examination patients, age 22-47 years old, the average age is 37 years old.2. Entry criteria:Group A: 20 patients with idiopathic pulmonary interstitial fibrosis (IPF).The specimens were collected from patients treated in Department of Respiratory Medicine, Jilin University second Hospital from October 2011 to June 2012.AMJ Respir critcare Med published the diagnostic criteria for the diagnosis and treatment of idiopathic pulmonary interstitial fibrosis with the exception of patients with malignant neoplasmsOther systemic diseases,Such as systemic lupus erythematosus, rheumatoid arthritis, scleroderma and so on.Group B: 20 patients with rheumatoid arthritis complicated with pulmonary interstitial injury (RA-ILD).The specimens were collected from patients who were treated in Department of Respiratory Medicine, Jilin University second Hospital from October 2011 to June 2012, according to the criteria for the diagnosis and treatment of rheumatoid arthritis published in 4 issues of 2010 in the Chinese guidelines for the diagnosis and treatment of Rheumatoid Arthritis.Patients with interstitial lung injury were excluded from malignant neoplasms.Group C: 20 healthy persons with venous blood.The specimens were collected from healthy patients who were examined in Department of Respiratory Medicine, Jilin University second Hospital from October 2011 to June 2012, and were set as negative control group.3. Collection of specimens:The peripheral blood of the patients was taken from 3 ml and centrifuged for 10 minutes. After centrifugation, serum 200ul was collected and stored in the freezer at -20 鈩

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