异氟烷对发育期大鼠海马IL-1β mRNA、IL-6 mRNA和TNF-α mRNA表达的影响

目的 探讨异氟烷对发育期大鼠海马IL-1β mRNA、IL-6 mRNA和TNF-α mRNA表达的影响.方法 出生7 d的SD大鼠64只,随机分为2组(n=32):对照组(C组)和异氟烷麻醉组(I组).I组大鼠吸入1.5%异氟烷麻醉6 h,C组吸入空气.I组于麻醉前(T0,基础状态)、麻醉2 h(T1)、4 h(T2)、6 h(T3)、麻醉停止后4 h(L)、6 h(T5)、12 h(T6)、24 h(T7)时,C组在对应时点各取4只大鼠,测定海马IL-1β mRNA、IL-6 mRNA及TNF-α mRNA的表达水平.结果 C组各时点海马IL-1β mRNA、IL-6 mRNA和TNF-α mRNA比较差异无统计学意义(P＞0.05);与C组比较,I组海马T1～5 时IL-1βmRNA表达上调,T2,3 时IL-6 mRNA表达上调,T1～6时TNF-α mRNA表达上调(P＜ 0.05).结论 1.5%异氟烷麻醉可短暂上调发育期大鼠海马IL-1β mRNA、IL-6 mRNA和TNF-α mRNA的表达.

Effect of isoflurane on expression of IL-1β mRNA,IL-6 mRNA and TNF-α mRNA In the hippocamapus of immature rats

Obiective To investigate the effect ofisoflurane on expression of IL-1β mRNA,IL-6 mRNA and TNF-α mRNA in the hippocampus of immature rats.Methods sixty-four 7-clay-old SD rats were randomly assigned into 2 groups(n=32 each):control group(group C)and isoflurane group(group S).group S was exposed to 1.5% isoflurane for 6 h while group C to air.Fore animals were killed before anesthesia(T0,baseline),at 2,4,6 h(T1-3)of isoflurane anesthesia and 4,6,12 and 24 h after anesthesia(T4-7).The hippocampi were immediately removed for determimation of the expression of IL-1β mRNA,IL-6 mRNA and TNF-α mRNA by RT-PCR.Results Compared with group C,the expression of IL-1β mRNA at T1-5,IL-6 mRNA at T2.3 and TNF-α mRNA at T1-6 in the hippocampus was upregulated in group S.Conclusion The expression of IL-1β mRNA,IL-6 mRNA and TNF-β mRNA was elevated in the hippocampus of immature rats after being exposed to isoflurane.