浙江医学
浙江醫學
절강의학
ZHEJIANG MEDICAL JOURNAL
2014年
10期
840-843
,共4页
氢气%实验性自身免疫性脑脊髓炎%SOD%IL-17%IL-10%INF-γ
氫氣%實驗性自身免疫性腦脊髓炎%SOD%IL-17%IL-10%INF-γ
경기%실험성자신면역성뇌척수염%SOD%IL-17%IL-10%INF-γ
Hydrogen%Experimental autoimmune encephalomyelitis%SOD%IL- 17%IL- 10%INF- γ
目的探讨氢气对大鼠实验性自身免疫性脑脊髓炎的干预作用及可能机制。方法采用豚鼠脊髓匀浆和完全弗氏佐剂(CFA)混合的油包水乳剂诱导SD大鼠实验性自身免疫性脑脊髓炎(EAE)模型;在EAE模型诱导后的第5~17天腹腔注射饱和氢气生理盐水(6ml/kg),对照组大鼠腹腔注射等量0.9%氯化钠溶液;观察并记录各组大鼠体重,行为学评分;在模型诱导后的第20天处死动物并作脑、脊髓HE染色,CD3免疫组化染色,光学显微镜下观察炎症情况,并用酶联免疫吸附法检测脊髓IL-17、INF-γ、IL-10表达,在模型诱导后第7、12、17天检测各组动物血清SOD水平。结果(1)H- EAE组大鼠诱导后体重下降度及神经行为缺损评分严重度均较EAE组轻;(2)H- EAE组大鼠中枢炎症细胞浸润较EAE组少;(3)H- EAE大鼠脊髓IL-17、INF-γ表达水平较EAE组低,但IL-10无明显差异;在EAE模型诱导后的第12天H- EAE大鼠血清SOD水平较EAE组高,在第7、17天则无明显差异。结论饱和氢气生理盐水可以减轻SD大鼠EAE的中枢炎症,可能与氢气在EAE炎症暴发过程中的抗氧化作用有关,即与提高SOD水平及抑制IL-17、INF-γ在炎症部位的释放有关。
目的探討氫氣對大鼠實驗性自身免疫性腦脊髓炎的榦預作用及可能機製。方法採用豚鼠脊髓勻漿和完全弗氏佐劑(CFA)混閤的油包水乳劑誘導SD大鼠實驗性自身免疫性腦脊髓炎(EAE)模型;在EAE模型誘導後的第5~17天腹腔註射飽和氫氣生理鹽水(6ml/kg),對照組大鼠腹腔註射等量0.9%氯化鈉溶液;觀察併記錄各組大鼠體重,行為學評分;在模型誘導後的第20天處死動物併作腦、脊髓HE染色,CD3免疫組化染色,光學顯微鏡下觀察炎癥情況,併用酶聯免疫吸附法檢測脊髓IL-17、INF-γ、IL-10錶達,在模型誘導後第7、12、17天檢測各組動物血清SOD水平。結果(1)H- EAE組大鼠誘導後體重下降度及神經行為缺損評分嚴重度均較EAE組輕;(2)H- EAE組大鼠中樞炎癥細胞浸潤較EAE組少;(3)H- EAE大鼠脊髓IL-17、INF-γ錶達水平較EAE組低,但IL-10無明顯差異;在EAE模型誘導後的第12天H- EAE大鼠血清SOD水平較EAE組高,在第7、17天則無明顯差異。結論飽和氫氣生理鹽水可以減輕SD大鼠EAE的中樞炎癥,可能與氫氣在EAE炎癥暴髮過程中的抗氧化作用有關,即與提高SOD水平及抑製IL-17、INF-γ在炎癥部位的釋放有關。
목적탐토경기대대서실험성자신면역성뇌척수염적간예작용급가능궤제。방법채용돈서척수균장화완전불씨좌제(CFA)혼합적유포수유제유도SD대서실험성자신면역성뇌척수염(EAE)모형;재EAE모형유도후적제5~17천복강주사포화경기생리염수(6ml/kg),대조조대서복강주사등량0.9%록화납용액;관찰병기록각조대서체중,행위학평분;재모형유도후적제20천처사동물병작뇌、척수HE염색,CD3면역조화염색,광학현미경하관찰염증정황,병용매련면역흡부법검측척수IL-17、INF-γ、IL-10표체,재모형유도후제7、12、17천검측각조동물혈청SOD수평。결과(1)H- EAE조대서유도후체중하강도급신경행위결손평분엄중도균교EAE조경;(2)H- EAE조대서중추염증세포침윤교EAE조소;(3)H- EAE대서척수IL-17、INF-γ표체수평교EAE조저,단IL-10무명현차이;재EAE모형유도후적제12천H- EAE대서혈청SOD수평교EAE조고,재제7、17천칙무명현차이。결론포화경기생리염수가이감경SD대서EAE적중추염증,가능여경기재EAE염증폭발과정중적항양화작용유관,즉여제고SOD수평급억제IL-17、INF-γ재염증부위적석방유관。
Objective To investigate the effects of hydrogen- rich saline on experimental autoimmune encephalomyelitis (EAE) in rat and its mechanism. Methods EAE was induced by injection of spinal cord homogenate of guinea pig containing CFA into hind limb footpads in SD rsts.hydrogen- rich saline (6ml/kg,study group)or same volume normal saline (control group) were injected intraperitoneal y 5- 17d after EAE induced.al rats were sacrificed 20d after EAE induced and paraffin sections were prepared and stained with hematoxylin- eosin. Rabbit anti- CD3 polyclonal antibody was used to detect inflammatory T cellinfil-tration. The spinal tissue levels of IL- 17,IL- 10 and INF- γwere determined by ELISA and serum SOD was also determined. Re-sults The animal weight lost and neurobehavioral deficits were attenuated in study group,compared to control group.There were less inflammatory cells detected in study group than those in control group.Compared to control group the tissue levels of IL- 17 and INF- γwere decreased and the SOD activity was increased in study group. Conclusion Hydrogen- rich saline may reduce the severity of EAE by increasing SOD activity and decreasing IL- 17 and INF- γlevels.