产兔与非孕兔休克复苏后肺损伤的比较研究  

The lung injury in postpartum and non-pregnant rabbits after resuscitation from hemorrhagic shock

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作  者:林胜谋[1] 王晨虹[1] 周洲[1] 盛超[2] 林赛穆[3] 

机构地区:[1]深圳市妇幼保健院产科,广东518028 [2]南方医科大学附属南方医院 [3]深圳市第四人民医院急诊科

出  处:《中国危重病急救医学》2011年第12期734-738,共5页Chinese Critical Care Medicine

基  金:广东省深圳市科技计划基金项目(200603132)

摘  要:目的探讨产兔和非孕兔失血性休克复苏后急性肺损伤的差异。方法将18只新西兰兔按随机数字表法分为产兔组和非孕兔组,每组9只。采用颈动脉放血致失血性休克1h,乳酸林格液复苏持续3h建立失血性休克复苏模型。分别于产前期、产后期(休克前期,0h)、休克期末(1h)、复苏期间(2.5h)以及复苏期末(4h)5个时间点采血测定肿瘤坏死因子-α(TNF-α)、白细胞介素-10(IL-10);复苏期持续3h后处死动物,取肺组织检测丙二醛(MDA)、超氧化物歧化酶(SOD)、髓过氧化物酶(MP0)、干/湿重比值(D/W),以及核转录因子-κB(NF—κB)活性和细胞间黏附分子-1(ICAM-1)mRNA表达。结果产兔产前期血清TNF-α(ng/L)、IL-10(ng/L)含量与非孕兔差异无统计学意义(TNF-α:87.6±6.8比83.2±5.3;IL-10:44.9±3.9比42.7±3.4,均P〉0.05);休克前期TNF-α水平显著增高(102.5±8.1比87.6±6.8,P〈0.05)。产兔与非孕兔休克1h后TNF-1α、IL-10均升高;各复苏时期产兔TNF-α水平明显高于非孕兔(1h:230.0±14.9比202.0±10.1,2.5h:290.0±18.6比236.0±14.4,4h:265.0±15.9比217.0±12.8,均P〈0.05),而IL-10水平明显低于非孕兔(1h:104.3±6.9比135.0±7.8,2.5h:146.8±9.4比178.3±11.7,4h:126.0±7.9比165.8±9.6,均P〈0.05)。休克复苏后产兔肺组织MDA、MPO、D/w比值、NF-κB活性和ICAM-1mRNA表达均显著高于非孕兔(MDA(nmol/mg):52.6±5.9比39.4±4.7,MPO(U/rag):4.62±0.85比3.26±0.62,D/W比值:0.186±0.025比0.143±0.016,NF-κB(A值):0.89±0.27比0.46±0.15,ICAM-1mRNA:4.6±1.2比2.5±0.7,均P〈0.053;而SOD(U/mg)水平较低(47.8±6.7比63.5±8.2,P〈0.05)。结论分娩可致产兔血清炎症因子TNF-α显著升高,失血性休�Objective To investigate the difference in the development of acute lung injury after hemorrhagic shock in postpartum and non-pregnant rabbits. Methods Hemorrhagic shock/resuscitation was produced on 9 pregnant New-Zealand rabbits postpartum (within 24 hours after giving birth) and 9 nonpregnant controls via carotid artery bleeding and perfusion (i. v. ) of lactate Ringer solution for 3 hours. The serum level of cytokine tumor necrosis factor-α (TNF-α) and interleukin-10 (IL-10) in the animals were measured at different time points. Lung tissue were taken 3 hours after resuscitation for the determination of malondialdehyde (MDA),the activity of superoxide dismutase (SOD), myeloperoxidase (MPO), dry/wet weight (D/W), nuclear factor-κB (NF-κB), and mRNA content of intercellular adhesion molecule-1 (ICAM-1). Results Serum TNF-α (ng/L) and IL-10 (ng/L) in antepartum pregnant rabbits were not significantly different from non-pregnant rabbits (TNF-α 87.6±6.8 vs. 83.2±5.3; IL-10: 44. 9±3.9 vs. 42.7 ± 3.4, both P〈0. 05). However, the serum TNF-α increased significantly after delivery (102.5 ±8. 1 vs. 87. 6±6.8, P〈0. 05). TNF-α and IL-10 increased 1 hour after shock in both postpartum and nonpregnant rabbits. The serum TNF-α in postpartum rabbits was significant higher than non-pregnant rabbits in each resuscitation period (1 hour: 230.0±14. 9 vs. 202.0±10. 1, 2.5 hours: 290. 0±18.6 vs. 236.0± 14.4, 4 hours. 265.0 ± 15.9 vs. 217.0 ±12.8, all P〈0.05), meanwhile the serum IL-10 in postpartum animals was significantly lower than the non-pregnant controls (1 hour: 104. 3 ± 6.9 vs. 135.0 ± 7.8, 2.5 hours.. 146.8±9.4 vs. 178. 3±11.7, 4 hours: 126.0±7.9 vs. 165.8±9.6, all P〈0. 05). The value of MDA, MPO, D/W, NF-κB activity and ICAM-1 mRNA content in lung tissue of postpartum rabbits were all significant higher than non-pregnant rabbits after resuscitation (MDA (nmol/mg): 52.6±5.9 vs. 39.4d: 4.7, MPO (U/rag�

关 键 词:产兔 失血性休克 肺损伤 急性 肿瘤坏死因子-Α 

分 类 号:R459.7[医药卫生—急诊医学]

 

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