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被动吸烟患者细胞色素P450酶2E1的表达与七氟烷MACBAR的相关性研究

2018-06-13徐永生鲁金钢夏尊萍

中国医药导报 2018年10期

徐永生 鲁金钢 夏尊萍

[摘要] 目的 检测被动吸烟患者CYP2E1的含量变化,分析其与七氟烷最低肺泡气浓度(MACBAR)值的相关性。 方法 选择2017年5月~2017年10月哈尔滨市第五医院因股骨头坏死拟全麻下行人工关节置换患者90例,通过询问患者本人烟草接触情况,并结合其血清可替宁含量,分为被动吸烟(A)组(49例)、非吸烟(B)组(41例)。采用单次刺激法测定患者七氟烷MACBAR,记录麻醉诱导前、切皮前3 min及1 min、切皮后1 min及3 min的心率(HR)、平均动脉压(MAP)。术前1 d抽取患者晨起静脉血5 mL,离心并收集所有患者血清,检测可替宁和CYP2E1含量。 结果 A组切皮后1 min、3 min MAP平均值升高幅度大于B组,差异有统计学意义(P < 0.05);A组七氟烷MACBAR、CYP2E1和可替宁含量高于B组,差异有统计学意义(P < 0.05),A组CYP2E1含量与MACBAR呈正相关(r = 0.45,P < 0.05)。 结论 被动吸烟患者CYP2E1含量与七氟烷MACBAR值有一定相关性,提示被动吸烟者血清中CYP2E1可能对七氟烷MACBAR值有影响。

[关键词] 吸烟;七氟烷;可替宁;CYP2E1

[中图分类号] R734.2 [文献标识码] A [文章编号] 1673-7210(2018)04(a)-0072-04

[Abstract] Objective To detect the change of CYP2E1 level in passive smoking patients and analyze its correlation with Sevoflurane MACBAR value. Methods From May 2017 to October 2017, in the Fifth Hospital of Harbin City, 90 patients with femoral head necrosis underwent artificial joint replacement under general anesthesia were selected. By inquiring the patients′ own tobacco exposure and combining with the content of cotinine, the patients were divided into passive smoking group (group A, 49 cases), non-smoking group (group B, 41 cases). Sevoflurane MACBAR was measured by single stimulus. HR, MAP before induction of anesthesia, 3 min and 1 min before cutting, 1 min and 3 min after cutting were recored. On the day before surgery, 5 mL of patients′ morning venous blood was gotten, centrifuged and all patients′ sera was collected for the detection of Cotinine and CYP2E1 content. Results In group A, the increase of average MAP value at 1 min and 3 min after skin incision was greater than that of group B, the difference was statistically significant (P < 0.05). The contents of Sevoflurane MACBAR, CYP2E1 and cotinine in group A were significantly higher than those in group B (P < 0.05). The CYP2E1 level in group A was positively correlated with MACBAR (r = 0.45, P < 0.05). Conclusion The level of CYP2E1 in passive smoking is correlated with MACBAR of Sevoflurane, it suggests that CYP2E1 in serum of passive smokers may affect the Sevoflurane MACBAR value.

[Key words] Smoking; Sevoflurane; MACBAR; Cotinine; CYP2E1

有研究表明[1-2],吸煙作为一种文化现象,已融入到我国的日常生活中,众所周知吸烟可以导致心脑血管疾病、恶性肿瘤、慢性阻塞性肺疾病等多种疾病[3]。Xiao等[4]报告的被动吸烟暴露率全国调查结果为72.4%,表明被动吸烟暴露的流行现况严重,被动吸烟者在通风不良场所1 h内吸入的香烟烟雾相当于吸入1支烟的剂量,在成分上与吸烟者吸入的主流烟雾没有差别,有毒、有害物质浓度更高[5]。本研究以被动吸烟者为研究对象,分析其血清CYP2E1含量与七氟烷阻滞肾上腺素能反应的最低肺泡有效浓度(MACBAR)间的相关性,为临床麻醉提供参考。

1.1 一般资料

选择2017年5月~2017年10月哈尔滨市第五医院因股骨头坏死拟行择期人工关节置换患者90例,ASA分级Ⅰ、Ⅱ级,年龄45~60岁,汉族,体重指数22~27 kg/m2,通过询问患者本人烟草接触情况,同时结合血清可替宁含量,将其分为被动吸烟组(A组,49例,1周内超过1 d以上时间,每天超过15 min烟草烟雾接触[6])和非吸烟组(B组,41例,无主动或被动吸烟经历)。……

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