血清基質(zhì)金屬蛋白酶9在慢性阻塞性肺疾病吸煙患者高分辨CT不同表型中的表達(dá)及相關(guān)研究
[Abstract]:AIM: To analyze the changes of serum matrix metalloproteinase-9 (MMPs-9) levels in different phenotypes of high-resolution computed tomographic-phy (HRCT) in smokers with chronic obstructive pulmonary disease (COPD). From January to January 2017, 94 patients with COPD admitted to the Department of Respiratory Medicine, Central Hospital of China National Petroleum and Natural Gas Group were selected as the observation group, including 56 males and 38 females. The age distribution was 48-87 years with an average age of (71.19 (+ 0.894) years. Guidelines for the Diagnosis and Treatment of Chronic Obstructive Pulmonary Disease (Revised Edition 2013): FEV1/FVC 0.7 after inhalation of bronchodilator, considered as persistent airflow limitation, can be diagnosed as COPD; (2) Age (> 40 years old); and (3) Informed consent and informed consent of patients and their families. The criteria for inclusion in the control group were: (1) age (> 40 years); (2) no history of smoking; (3) healthy persons with normal lung function and normal physical function; (4) informed consent and informed consent were signed by the subjects. (1) those who did not meet the inclusion criteria; (2) those who did not wish to participate in the study. The data were collected as follows: sex, age, past history, smoking status. Routine examination in observation group: blood routine, ESR, PCT, CRP, lung function, chest HRCT, etc. Group B and non-smoking group.MMP-9 kit provided by Beijing Dongge Biotechnology Co.Ltd was used to determine the serum MMP-9 in strict accordance with the specifications of all subjects.Data were analyzed by SPSS 19.0 software.The data were tested for normality and homogeneity of variance before analysis.The measurement data which accorded with normal distribution were expressed by x+s,but not by SPSS 19.0 software. Normal distribution data were logarithmically transformed. Variance analysis was used to compare the measurement data of normal distribution among groups, LSD test was used for multiple comparisons, Kruskal-Wallis H test was used for non-normal distribution among groups. Spearman correlation analysis was used for single factor correlation analysis and scatter plots were drawn one by one. _2 test, multivariate stepwise linear regression analysis was used for multivariate correlation analysis. The expression of MMP-9 was 128.11 (+ 10.23 ng / ml) in 56 patients with type a, 132.06 (+ 6.78 ng / ml) in 10 patients with type e, and 128.56 (+ 9.07 ng / ml) in 28 patients with type M. There was no significant difference between the three groups. Comparison 3.1 MMP-9 expression level in smoking group and non-smoking group was (130.49 [9.01 ng / ml], and that in non-smoking group was (123.23 [6.96 ng / ml], and there was significant difference between the two groups. 133.69 [10.17ng / ml], (135.62 [9.94ng / ml], the difference was statistically significant (t = 2.05, 2.65, p0.05). There was no significant difference between the MMP-9 phenotypes in smoking patients (p0.05). 4 Correlation analysis of CT typing between smoking and non-smoking patients The difference was statistically significant (t = 2.86, p0.01). 4.2 The LAA scores of smoking group and non-smoking group a, e, m were significantly different from those of smoking group and non-smoking group (p0.01), but there was no significant difference in the LAA scores of M and e between smoking group and non-smoking group (p0.05). There was no significant difference in t / PA between smoking group and non-smoking group (t = 1.51, p0.05), but there was significant difference in t / PA between smoking group and non-smoking group (t = 2.42, t = 2.82, p0.05). The percentage of peripheral blood neutrophils (76.78+10.80%) and the percentage of lymphocytes (15.73+9.18%) in the smoking group were significantly higher than those in the non-smoking group (67.41+12.65%) and the percentage of lymphocytes (22.51+12.08%) (t = 3.55, t = 2.90, P 0.01). Compared with non-smoking group, FEV1% was better than smoking group, the difference was statistically significant (t = 2.11, P 0.05). 6. The number of complications in smoking and COPD patients affected the number of MMP-9. The number of complications in more than three patients, smoking group and non-smoking group MMP-9 was significantly different (2 = 12.08, P 0.01). 6.2 complications and MMP-9 smoking type Conclusion: The expression level of MMP-9 in serum of COPD patients in observation group was significantly higher than that in control group, indicating that MMP-9 participated in the pathogenesis of COPD. MMP-9 is not the only metalloproteinase involved in airway wall thickening and emphysema. Smoking patients have higher levels of MMP-9 expression, suggesting that smoking is the most important factor causing airway inflammation, airway structural damage and airway remodeling. The percentage of granulocytes is higher than that of non-smokers, suggesting that smoking causes more pronounced inflammation. 4 Smoking causes a variety of complications in patients with COPD, especially cardiovascular disease.
【學(xué)位授予單位】:河北醫(yī)科大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類(lèi)號(hào)】:R563.9
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