辛伐他汀对慢性阻塞性肺疾病患者全身性炎症反应的影响

目的 探讨辛伐他汀对慢性阻塞性肺疾病(COPD)患者鼻灌洗液、痰液和血清中炎症细胞和(或)炎症递质与临床指标的影响.方法 选择COPD缓解期患者37例,给予常规治疗20例,辛伐他汀40mg/d治疗17例,比较治疗前和治疗4周患者鼻灌洗液和痰中细胞数、中性粒细胞百分比(N%)和IL-8、IL-6浓度,检测血清CRP、IL-8、IL-6及TC和LDL-C浓度,并观察肺功能、生活质量评分(SNOT-20)、呼吸问卷(SGRQ)评分的变化.结果 4周后辛伐他汀组鼻灌洗液和痰中细胞总数、N%、IL-8、IL-6[鼻灌洗液:(0.7±0.3)×107/L,(41.1±10.9)%,(105.8±74.5)ng/L,(3.8±1.6)ng/L;痰:(0.8±0.3)×109/L,(56.6±9.6)%,(2565.5±831.9)ng/L,(109.8±42.3)ng/L]较治疗前[鼻灌洗液:(0.8±0.3)×107/L、(43.2±10.8)%、(107.6±86.3)ng/L、(4.1±1.9)ng/L;痰:(0.8±0.3)×109/L、(58.1±9.3)%、(2659.4±885.2)ng/L、(111.8±46.6)ng/L]轻度降低,但差异无统计学意义(P均>0.05);血清CRP、IL-6和TC、LDL-C水平显著减低[治疗前分别为(4.3±3.7)mg/L、(4.8±2.0)ng/L、(4.2±1.0)mmol/L、(2.4±0.5)mmoL/L;治疗后分别为(2.6±1.8)mg/L、(4.7±1.9)ng/L、(3.7±0.8)mmol/L、(2.2±0.5)mmol/L,P均<0.05],IL-8浓度轻度降低[(6.2±1.8)ng/L与(6.4±1.9)ng/L],但差异无统计学意义(P>0.05);SGRQ各项分值中症状评分明显减低[(39.6±10.8)分与(32.3±11.6)分,P<0.05],其他观察项目(SNOT-20量表评分、肺功能)改善不明显(P均>0.05).常规治疗组所有炎症指标及生活质量评分、肺功能均无显著改善(P均>0.05).结论 辛伐他汀可减轻COPD患者全身性炎症反应并缓解症状.

Effects of simvastatin on inflammation in patients with chronic obstructive pulmonary diseases

Objective To investigate the influence of simvastatin on inflammatory indices in nasal lavage,sputum and blood and clinical index in patients with chronic obstructive pulmonary diseases (COPD). Methods Thirty-seven stable COPD patients were randomly divided into simvastatin-treatment group (n=17),orally given simvastatin tablets for 4 weeks in addition to basic therapy,40 mg,qd) and control group (n=20),given usual med-ication). Total cell counts,percentage of leukocytes (N%) and levels of interleukin IL-8,IL-6 in nasal lavage and sputum at pre-post-treatment were compared;Serum C-reactive protein (CRP),total cholesterol (TC),low-density lipoprotein-cholesterol (LDL-C) as well as IL-8,IL-6 concentrations were measured,the variation of lung function,Sino-Nasal Outcome Test 20(SNOT-20) and St George's Respiratory Questionnaire(SGRQ) score were analyzed. Results After the treatment,the nasal lavage and sputum total cell counts,N%,IL-8 and IL-6 levels[nasal lavage: (0.7±0.3)×107/L,(41.1±10.9)%,(105.8±74.5) ng/L,(3.8±1.6) ng/L;sputum: (0.8±0.3)×109/L,(56.6±9.6) %,(2565.5±831.9) ng/L,(109.8±42.3) ng/L] dropped slightly in the simvastatin group com-pared with that at pretreatment [nasal lavage: (0.8±0.3)×107/L,(43.2±10.8) %,(107.6±86.3) ng/L,(4.1±1.9)ng/L;sputum: (0.8±0.3)×109/L,(58.1±9.3)% ,(2659.4±885.2) ng/L,(111.8±46.6) ng/L] (P>0.05) ;There were significant decreases in serum CRP [(4.3±3.7) mg/L vs (2.6±1.8) mg/L],IL-6 [(4.8±2.0)ng/L vs(4.7±1.9)ng/L] ,TC[(4.2±1.0) mmol/L vs(3.7±0.8)mmol/L] ,LDL-C[(2.4±0.5) mmol/L vs (2.2±0.5)mmol/L] (P>0.05) ;IL-8 concentrations in serum were lower gently[(6.2±1.8) ng/L vs (6.4±1.9) ng/L] (P>0.05). Significant change of simvastatin treatment on SGRQ was only reflected in the symp-tom score [pre-post-treatment:39.6±10. 8 vs 32.3±11.6,P<0.05,respectively],while other observation items (SNOT-20,FEV1%,FEV1/FVC) changed not notably (P>0.05). No marked changes in inflammatory markers and quality of life scores,lung function were observed in control group (P>0.05). Conclusion Simvastatin may be as-sociated with the potential to alleviate systemic inflammation and relieve symptoms in COPD patients.