世界科学技术-中医药现代化
世界科學技術-中醫藥現代化
세계과학기술-중의약현대화
WORLD SCIENCE AND TECHNOLOGY-MODERNIZATION OF TRADITIONAL CHINESE MEDICINE
2014年
7期
1552-1557
,共6页
崔晓雅%刘斌%陈晓艳%罗永伟%苗玉超%王新宇
崔曉雅%劉斌%陳曉豔%囉永偉%苗玉超%王新宇
최효아%류빈%진효염%라영위%묘옥초%왕신우
脑缺血再灌注损伤%一氧化氮合酶%内皮型一氧化氮合酶%神经元型一氧化氮合酶%诱导型一氧化氮合酶%参芎化瘀胶囊%大鼠模型
腦缺血再灌註損傷%一氧化氮閤酶%內皮型一氧化氮閤酶%神經元型一氧化氮閤酶%誘導型一氧化氮閤酶%參芎化瘀膠囊%大鼠模型
뇌결혈재관주손상%일양화담합매%내피형일양화담합매%신경원형일양화담합매%유도형일양화담합매%삼궁화어효낭%대서모형
Cerebral ischemia-reperfusion injury%nitric oxide synthase%endothelial nitric oxide synthase%nervous nitric oxide synthase%inducible nitric oxide synthase%Shen-Xiong Hua-Y u capsule%rat model
目的:观察参芎化瘀胶囊预处理对大鼠脑缺血再灌注损伤后一氧化氮合酶(NOS)亚型内皮型(eNOS)、神经元型(nNOS)及诱导型(iNOS)表达的影响,探讨参芎化瘀胶囊对大鼠急性脑缺血再灌注损伤保护作用的机制。方法:实验大鼠随机分为:假手术组,缺血再灌注组,参芎化瘀胶囊高、中、低剂量预处理组(480、240、120 mg·kg-1),各组又分为缺血2 h再灌注后3、6、12、24、48、72 h组,每组6只。灌胃给药7天,每天1次,第7天灌胃2 h后线栓法制作大脑中动脉阻断(MCAO)再灌注模型。免疫组化方法检测eNOS、nNOS和iNOS蛋白表达。结果:①与假手术组比较,缺血再灌注组各时间点(3、6、12、24、48、72 h) eNOS、nNOS和iNOS表达均增强(P<0.05或P<0.01);②与缺血再灌注组比较,参芎化瘀胶囊预处理组各时间点eNOS表达均增强(P<0.05或P<0.01),nNOS和iNOS表达均减少(P<0.05或P<0.01),其中均以高剂量组效果最为显著。结论:参芎化瘀胶囊预处理对脑缺血再灌注损伤具有保护作用,其作用机制可能与调节NOS分型表达有关。
目的:觀察參芎化瘀膠囊預處理對大鼠腦缺血再灌註損傷後一氧化氮閤酶(NOS)亞型內皮型(eNOS)、神經元型(nNOS)及誘導型(iNOS)錶達的影響,探討參芎化瘀膠囊對大鼠急性腦缺血再灌註損傷保護作用的機製。方法:實驗大鼠隨機分為:假手術組,缺血再灌註組,參芎化瘀膠囊高、中、低劑量預處理組(480、240、120 mg·kg-1),各組又分為缺血2 h再灌註後3、6、12、24、48、72 h組,每組6隻。灌胃給藥7天,每天1次,第7天灌胃2 h後線栓法製作大腦中動脈阻斷(MCAO)再灌註模型。免疫組化方法檢測eNOS、nNOS和iNOS蛋白錶達。結果:①與假手術組比較,缺血再灌註組各時間點(3、6、12、24、48、72 h) eNOS、nNOS和iNOS錶達均增彊(P<0.05或P<0.01);②與缺血再灌註組比較,參芎化瘀膠囊預處理組各時間點eNOS錶達均增彊(P<0.05或P<0.01),nNOS和iNOS錶達均減少(P<0.05或P<0.01),其中均以高劑量組效果最為顯著。結論:參芎化瘀膠囊預處理對腦缺血再灌註損傷具有保護作用,其作用機製可能與調節NOS分型錶達有關。
목적:관찰삼궁화어효낭예처리대대서뇌결혈재관주손상후일양화담합매(NOS)아형내피형(eNOS)、신경원형(nNOS)급유도형(iNOS)표체적영향,탐토삼궁화어효낭대대서급성뇌결혈재관주손상보호작용적궤제。방법:실험대서수궤분위:가수술조,결혈재관주조,삼궁화어효낭고、중、저제량예처리조(480、240、120 mg·kg-1),각조우분위결혈2 h재관주후3、6、12、24、48、72 h조,매조6지。관위급약7천,매천1차,제7천관위2 h후선전법제작대뇌중동맥조단(MCAO)재관주모형。면역조화방법검측eNOS、nNOS화iNOS단백표체。결과:①여가수술조비교,결혈재관주조각시간점(3、6、12、24、48、72 h) eNOS、nNOS화iNOS표체균증강(P<0.05혹P<0.01);②여결혈재관주조비교,삼궁화어효낭예처리조각시간점eNOS표체균증강(P<0.05혹P<0.01),nNOS화iNOS표체균감소(P<0.05혹P<0.01),기중균이고제량조효과최위현저。결론:삼궁화어효낭예처리대뇌결혈재관주손상구유보호작용,기작용궤제가능여조절NOS분형표체유관。
This study was aimed to observe the regulating effect of Shen-Xiong Hua-Y u (SXHY) capsule precondi-tioning on the expression of subtypes of nitric oxide synthase (NOS), including endothelial nitric oxide synthase (eNOS), nervous nitric oxide synthase (nNOS), inducible nitric oxide synthase (iNOS), in cerebral ischemia-reperfu-sion injury (CIRI) among rats, and to further clarify the mechanism of protective effect by SXHY capsule on acute CIRI rats. Rats were randomly divided into the sham operation group, CIRI group, and SXHY capsule of high-, medium-, and low-dose preconditioning group (480, 240, 120 mg·kg-1). Each group was further randomly divided into different subgroups, which were the 3, 6, 12, 24, 48, 72 h group after 2 h CIRI (n=6). Intragastric administration was given once a day for 7 days. The middle cerebral artery occlusion (MCAO) and reperfusion model was repro-duced by an intraluminal filament method on the 7th day. The protein expressions of eNOS, nNOS and iNOS were measured by immunhistochemical method. The results showed that compared with the sham operation group, expres-sions of eNOS, nNOS and iNOS in the CIRI group were increased at different time points (i.e., 3, 6, 12, 24, 48, 72 h, P< 0.05 or P< 0.01). Compared with the CIRI group, eNOS expression increased at different time points in SX-HY capsule group (P< 0.05 or P< 0.01). The nNOS and iNOS expression decreased at different time points (P<0.05 or P < 0.01). Among them, the high-dose group was the group with the most obvious effect. It was concluded that SXHY capsule preconditioning had protective effect on CIRI. Its mechanism may be related to the regulation on protein expression of NOS subtypes.