迷迭香酸早期干预对创伤后应激模型大鼠行为及海马IL-1β和IL-6水平的影响  被引量:4

Influence of rosmarinic acid early intervention on the behavior change and the levels of IL-1β and IL-6 in the hippocampus of PTSD model rats

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作  者:陈怡环[1] 吴迪[1] 陈冠婕[1] 彭正午[1] 王化宁[1] 王莹[1] 谭庆荣[1] 

机构地区:[1]第四军医大学西京医院心身科,西安710032

出  处:《中华行为医学与脑科学杂志》2013年第6期503-506,共4页Chinese Journal of Behavioral Medicine and Brain Science

基  金:国家自然科学基金项目(81201054,81201041)

摘  要:目的 探讨迷迭香酸(rosmarinic acid,RA)早期干预对增强型单次延长应激(enhanced single prolonged stress,ESPS)模型大鼠行为和海马白介素-1β (IL-1β)、白介素-6(IL-6)水平的影响.方法 将48只SD大鼠采用随机数字表法分为6组:对照组(Control)、RA低剂量组(Control+RA (L)),RA高剂量组(Control+RA (H)),模型组(ESPS),模型+RA低剂量组(ESPS+RA(L))和模型+RA高剂量组(ESPS+RA(H)),每组8只.采用旷场实验和高架十字迷宫检测大鼠行为表现,并且在行为实验完成后处死大鼠,用酶联免疫吸附法(enzyme linked immunosorbent assay,ELISA)测定大鼠海马中IL-1β和IL-6的水平.结果 (1)旷场实验:ESPS组大鼠进入中央区次数[(7.63±5.32)次]和中央区的探索时间百分比[(14.88±7.35)%]均显著低于Control组[分别为(18.13±10.15)次,(26.68±10.06)%]和ESPS+RA (H)组[分别为(16.88±8.81)次,(25.08±8.52)%],均差异有统计学意义(均P<0.05).而Control+RA(L)、Control+RA(H)组与Control组之间,以及ESPS组和ESPS+RA(L)之间均差异无统计学意义(均P>0.05).(2)高架十字迷宫实验:与Control组大鼠进入开臂次数百分比(37.38±8.24)%和开臂停留时间百分比(17.63±4.74)%相比,ESPS组有显著降低[分别为(21.92±6.82)%,(10.01±3.82)%],均差异有统计学意义(均P<0.05);与ESPS组比较,ESPS+RA(H)组大鼠进入开臂次数百分比和开臂停留时间百分比[分别为(33.72±9.49)%,(16.99±4.28)%]显著增加,差异有统计学意义(P<0.05),而ESPS组和ESPS+RA(L)之间及Control+RA(L)、Control+RA(H)组与Control组之间均差异无统计学意义(均P>0.05).(3)ELISA结果显示:ESPS组大鼠海马中IL-1β和IL-6的含量[(4.91±0.77)pg/mg,(38.31±9.44) pg/mg]高于Control组[(3.14 ±0.96) pg/mg,(27.15±8.03) pg/mg]和ESPObjective To investigate the effect of rosmarinic acid on the behavioral changes in enhanced single prolonged stress (ESPS) model rats and the levels of interlukin-1β (IL-1β) and interlukin-6 (IL-6) in the hippocampus.Methods 48 adult male Sprague Dawley rats were randomly divided into six groups (n =8):Control group,Control + RA (L) group,Control + RA (H) group,ESPS group,ESPS + RA (L) group and ESPS + RA (H) group.Behavioral changes of these rats were analyzed by open field test and elevated plus-maze.The levels of IL-1 β and IL-6 were measured by enzyme linked immunosorbent assay (ELISA).Results (1) Open field test showed that the number of central region entering and the fraction of time exploring in center of ESPS group were significantly reduced than that of Control group ((18.13 ± 10.15) times,(26.68 ± 10.06) %) and ESPS + RA (H) group ((16.88 ± 8.81) times,(25.08 ± 8.52) %) (P 〈 0.05).And it showed no significant difference among Control + RA(L) group,Control + RA(H) group and Control group.Meanwhile,there was also no statistic difference between ESPS group and ESPS + RA(L) group.(2) Elevated plus-maze test showed that percentages of open arm entries and fraction of time exploring in open arm in reference to total number of entries into all arms and total time spent on all arms in ESPS group were significantly reduced than that of Control group((37.38 ± 8.24)%,(17.63 ±4.74)%) and ESPS + RA(H) group((33.72 ±9.49)%,(16.99 ±4.28)%) (P 〈 0.05),but there was no significant difference between that of ESPS group and ESPS + RA(L) group(P〉0.05).It also showed no significant difference among Control + RA (L) group,Control + RA (H) group and Control group.(3) Compared with ESPS group,RA(10mg/kg) reduced the levels of IL-1β and IL-6 in the hippocampus,but RA(5mg/kg) did not have this effect.(4) Correlation analysis results s

关 键 词:迷迭香酸 创伤后应激障碍 白介素-1Β 白介素-6 大鼠 

分 类 号:R-332[医药卫生] R28

 

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