Influence on levels of melatonin and oxidative stress in critically ill patients with AECOPD treated by different ways of light
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摘要:
目的 探讨不同光照方式对重症慢性阻塞性肺疾病急性加重期(AECOPD)患者血清褪黑素(Mel)及氧化应激水平的影响。 方法 选取浙江省人民医院ICU 2019年7月—2020年12月收治的100例AECOPD患者为研究对象,按照随机数字表法分为对照组(48例)和观察组(52例)。对照组给予24 h不间断光照,观察组采用间断光照方式。检测2组血清Mel、尿6-磺酸基褪黑素(6-SMT)、肺泡灌洗液(BALF)中丙二醛(MDA)及超氧化物歧化酶(SOD)水平并进行统计学分析。 结果 观察组和对照组血清Mel(早上7点及晚上10点)在入院后第5天分别为(29.6±5.8)pg/mL、(26.7±6.4)pg/mL和(50.8±8.5)pg/mL、(46.7±9.1)pg/mL,入院后第10天分别为(35.3±8.2)pg/mL、(24.5±5.7)pg/mL和(55.6±6.6)pg/mL、(44.5±7.5)pg/mL。与对照组相比,观察组血清Mel(早上7点及晚上10点)水平均呈现出逐渐升高趋势(均P<0.05)。2组尿6-SMT(早上7点及晚上10点)水平也呈现出相似趋势。观察组BALF中MDA水平逐渐下降而SOD水平逐渐升高(均P<0.05)。与对照组相比观察组撤机成功率明显升高,而ICU停留时间、MODS发生率和28天病死率均明显降低(均P<0.05)。 结论 对重症AECOPD患者实施间断光照能够明显提高患者体内褪黑素及其代谢产物水平,提高抗氧化应激能力,改善预后。 -
关键词:
- 慢性阻塞性肺疾病急性加重期 /
- 光照方式 /
- 褪黑素 /
- 氧化应激
Abstract:Objective To discuss the influence on levels of melatonin (Mel) and oxidative stress in critically ill patients with acute exacerbation of chronic obstructive pulmonary disease (AECOPD) treated by different ways of light. Methods One hundred patients with AECOPD admitted to the Intensive Care Unit (ICU) of Zhejiang Province People ' s Hospital from July 2019 to December 2020 were selected as study subjects and divided into the control group (n=48) and observation group (n=52) according to random number table. The patients of control group were given 24-hour illumination, while the patients of observation group were given intermittent light way. The levels of serum Mel and urine 6-sulfonic melatonin (6-SMT), malondialdehyde (MDA) and superoxide dismutase (SOD) in bronchoalveolar lavage fluid (BALF) were measured, and statistical analysis were carried out. Results The levels of serum Mel (7 a.m. and 10 p.m.) were (29.6±5.8) pg/mL, (26.7±6.4) pg/mL and (50.8±8.5) pg/mL, (46.7±9.1) pg/mL respectively at 5 days after admission. The levels of serum Mel (7 a.m. and 10 p.m.) were (35.3±8.2) pg/mL, (24.5±5.7) pg/mL and (55.6±6.6) pg/mL, (44.5±7.5) pg/mL respectively at 10 days after admission. Compared with the control group, the levels of serum Mel (7 a.m. and 10 p.m.) in the observation group showed a gradually increasing trend (all P < 0.05). The levels of urine 6-SMT (7 a.m. and 10 p.m.) in the two groups showed a similar trend. In the observation group, the level of MDA in BALF gradually decreased while the level of SOD gradually increased (all P < 0.05). The success rate of removing ventilator of the observation group was obviously higher than that of the control group, while ICU stay time, the incidence of MODS and 28-day mortality were lower than those of the control group (all P < 0.05). Conclusion For critically ill patients with AECOPD, intermittent illumination can obviously increase the level of melatonin and its metabolites in the body, improve the ability of resistance to oxidative stress and improve prognosis. -
表 1 2组AECOPD患者一般临床资料比较
Table 1. Comparison of general clinical data between two groups of patients with AECOPD
项目 对照组(n=48) 观察组(n=52) 统计量 P值 年龄(x±s,岁) 59.2±7.4 59.5±6.2 0.220a 0.826 性别[例(%)] 0.019b 0.899 男性 43(89.6) 48(92.3) 女性 5(10.4) 4(7.7) 病程(x±s, d) 12.2±3.5 12.4±2.8 1.987a 0.766 BMI(x±s) 22.6±2.4 22.4±1.8 0.317a 0.752 吸烟史[例(%)] 44(91.7) 48(92.3) 0.011b 0.906 饮酒史[例(%)] 12(25.0) 14(26.9) 0.051b 0.826 合并症[例(%)] 高血压 34(70.8) 38(73.1) 0.060b 0.803 糖尿病 13(27.1) 15(28.8) 0.040b 0.845 高血脂 16(33.3) 17(32.7) <0.001b 0.947 APACHE Ⅱ评分(x±s,分) 15.6±2.5 15.2±2.1 0.869a 0.387 PaO2(x±s, mm Hg) 53.5±8.5 52.9±9.1 0.340a 0.735 PaCO2(x±s,mm Hg) 74.2±11.5 74.6±10.8 0.179a 0.858 通气方式[例(%)] 0.110b 0.738 无创通气 8(16.7) 10(19.2) 有创通气 40(83.3) 42(80.8) 注:a为t值,b为χ2值。1 mm Hg=0.133 kPa。 表 2 2组AECOPD患者早上7点血清Mel水平比较(x±s, pg/mL)
Table 2. Comparison of serum Mel levels between two groups of patients with AECOPD at 7 a.m(x±s, pg/mL)
组别 例数 入院时 入院第5天 入院第10天 F值 P值 对照组 48 25.4±6.2 26.7±6.4 24.5±5.7 0.756 0.472 观察组 52 25.2±6.6 29.6±5.8a 35.3±8.2ab 3.365 0.021 t值 0.156 -2.377 -7.695 P值 0.876 0.019 <0.001 注:与入院时比较,aP<0.05;与入院第5天比较,bP<0.05;2组组间主效应、时间主效应、组间×时间主效应的F值分别为12.536、0.342和4.623,P值分别为<0.001、0.642和<0.001。 表 3 2组AECOPD患者晚上10点血清Mel水平比较(x±s, pg/mL)
Table 3. Comparison of serum Mel levels between two groups of patients with AECOPD at 10 a.m(x±s, pg/mL)
组别 例数 入院时 入院第5天 入院第10天 F值 P值 对照组 48 45.8±9.3 46.7±9.1 44.5±7.5 0.684 0.654 观察组 52 46.1±8.5 50.8±8.5a 55.6±6.6ab 3.253 0.035 t值 -0.169 -2.591 -7.781 P值 0.867 0.016 <0.001 注:与入院时比较,aP<0.05;与入院第5天比较,bP<0.05;2组组间主效应、时间主效应、组间×时间主效应的F值分别为11.635、0.354和4.536,P值分别为<0.001、0.563和<0.001。 表 4 2组AECOPD患者早上7点尿6-SMT水平比较(x±s, pg/mL)
Table 4. Comparison of urinary 6-SMT levels between two groups of patients with AECOPD at 7 a.m(x±s, pg/mL)
组别 例数 入院时 入院第5天 入院第10天 F值 P值 对照组 48 30.5±4.6 31.4±6.3 32.2±5.5 0.693 0.598 观察组 52 29.8±6.2 34.6±5.8a 39.3±7.4ab 3.872 0.018 t值 0.644 -2.645 -5.472 P值 0.521 0.010 <0.001 注:与入院时比较,aP<0.05;与入院第5天比较,bP<0.05;2组组间主效应、时间主效应、组间×时间主效应的F值分别为8.634、0.253和3.728,P值分别为<0.001、0.784和<0.001。 表 5 2组AECOPD患者晚上10点尿6-SMT水平比较(x±s, pg/mL)
Table 5. Comparison of urinary 6-SMT levels between two groups of patients with AECOPD at 10 a.m(x±s, pg/mL)
组别 例数 入院时 入院第5天 入院第10天 F值 P值 对照组 48 35.7±4.7 34.4±5.2 33.6±5.2 0.563 0.737 观察组 52 36.2±6.0 38.6±5.3 42.5±7.2ab 3.268 0.041 t值 -0.461 -3.995 -7.125 P值 0.646 <0.001 <0.001 注:与入院时比较,aP<0.05;与入院第5天比较,bP<0.05;2组组间主效应、时间主效应、组间×时间主效应的F值分别为10.732、0.321和4.213,P值分别为<0.001、0.625和<0.001。 表 6 2组AECOPD患者BALF中MDA水平比较(x±s, μmol/L)
Table 6. Comparison of MDA levels in BALF between two groups of patients with AECOPD(x±s, ?mol/L)
组别 例数 入院时 入院第5天 入院第10天 F值 P值 对照组 48 6.6±1.5 6.4±1.2 6.2±1.4 0.453 0.793 观察组 52 6.4±1.2 4.8±1.6a 3.2±1.2ab 3.165 0.046 t值 0.739 5.684 11.531 P值 0.462 <0.001 <0.001 注:与入院时比较,aP<0.05;与入院第5天比较,bP<0.05;2组组间主效应、时间主效应、组间×时间主效应的F值分别为12.634、0.212和4.762,P值分别为<0.001、0.837和<0.001。 表 7 2组AECOPD患者BALF中SOD水平变化比较(x±s, mU/L)
Table 7. Comparison of SOD levels in BALF between two groups of patients with AECOPD(x±s, mU/L)
组别 例数 入院时 入院第5天 入院第10天 F值 P值 对照组 48 42.5±4.2 43.5±5.2 43.6±5.3 0.572 0.718 观察组 52 42.6±3.6 49.4±6.4a 58.3±5.0ab 4.251 0.003 t值 -0.128 -5.034 -14.271 P值 0.898 <0.001 <0.001 注:与入院时比较,aP<0.05;与入院第5天比较,bP<0.05;2组组间主效应、时间主效应、组间×时间主效应的F值分别为14.262、0.353和5.736,P值分别为<0.001、0.613和<0.001。 表 8 2组AECOPD患者临床相关指标比较
Table 8. Comparison of clinical indicators of between two groups of patients with AECOPD
组别 例数 撤机成功率(%) ICU停留时间(x±s,d) MODS发生率(%) 28天病死率(%) 对照组 48 75.0(36/48) 14.5±3.4 37.5(18/48) 29.2(14/48) 观察组 52 94.2(49/52) 11.8±2.6 19.2(10/52) 11.5(6/52) 统计量 7.241a 4.481b 4.131a 4.852a P值 0.007 <0.001 0.042 0.027 注:a为χ2值,b为t值 -
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