中国循环杂志
中國循環雜誌
중국순배잡지
CHINESE CIRCULATION JOURNAL
2015年
2期
172-175
,共4页
藏红花酸%心肌缺血再灌注损伤%炎症%凋亡
藏紅花痠%心肌缺血再灌註損傷%炎癥%凋亡
장홍화산%심기결혈재관주손상%염증%조망
Crocetin%Myocardial ischemia reperfusion injury%inlfammation%Apoptosis
目的:探讨藏红花酸预处理对大鼠心肌缺血再灌注损伤中炎症反应和细胞凋亡的影响及其机制。
<br> 方法:将30只Wistar雄性大鼠随机分为假手术组,缺血再灌注组,藏红花酸组,每组10只,术前7天分别给予相应处理。采用结扎冠状动脉左前降支的方法建立心肌缺血再灌注模型,缺血45 min后再灌注3 h。实验结束后用酶联免疫吸附法(ELISA)检测大鼠血清肌酸激酶MB同工酶(CK-MB)、肿瘤坏死因子-α(TNF-α)和白细胞介素-10(IL-10)的含量,脱氧核苷酸末端转移酶介导的dUTP缺口末端标记法(TUNEL)检测心肌细胞的凋亡指数。
<br> 结果:与假手术组相比,缺血再灌注组及藏红花酸组血清CK-MB和TNF-α含量明显上升(P<0.01),藏红花酸组IL-10含量明显上升(P<0.01),差异均有统计学意义。与缺血再灌注组相比,藏红花酸组的血清CK-MB、TNF-α含量及心肌细胞凋亡指数明显降低(P<0.01),差异有统计学意义;而血清IL-10含量明显升高(P<0.01),差异有统计学意义。
<br> 结论:藏红花酸预处理在心肌缺血再灌注损伤中可以通过负性调节TNF-α,正性调节IL-10来减轻炎症反应并抑制心肌细胞的凋亡,发挥心肌保护作用。
目的:探討藏紅花痠預處理對大鼠心肌缺血再灌註損傷中炎癥反應和細胞凋亡的影響及其機製。
<br> 方法:將30隻Wistar雄性大鼠隨機分為假手術組,缺血再灌註組,藏紅花痠組,每組10隻,術前7天分彆給予相應處理。採用結扎冠狀動脈左前降支的方法建立心肌缺血再灌註模型,缺血45 min後再灌註3 h。實驗結束後用酶聯免疫吸附法(ELISA)檢測大鼠血清肌痠激酶MB同工酶(CK-MB)、腫瘤壞死因子-α(TNF-α)和白細胞介素-10(IL-10)的含量,脫氧覈苷痠末耑轉移酶介導的dUTP缺口末耑標記法(TUNEL)檢測心肌細胞的凋亡指數。
<br> 結果:與假手術組相比,缺血再灌註組及藏紅花痠組血清CK-MB和TNF-α含量明顯上升(P<0.01),藏紅花痠組IL-10含量明顯上升(P<0.01),差異均有統計學意義。與缺血再灌註組相比,藏紅花痠組的血清CK-MB、TNF-α含量及心肌細胞凋亡指數明顯降低(P<0.01),差異有統計學意義;而血清IL-10含量明顯升高(P<0.01),差異有統計學意義。
<br> 結論:藏紅花痠預處理在心肌缺血再灌註損傷中可以通過負性調節TNF-α,正性調節IL-10來減輕炎癥反應併抑製心肌細胞的凋亡,髮揮心肌保護作用。
목적:탐토장홍화산예처리대대서심기결혈재관주손상중염증반응화세포조망적영향급기궤제。
<br> 방법:장30지Wistar웅성대서수궤분위가수술조,결혈재관주조,장홍화산조,매조10지,술전7천분별급여상응처리。채용결찰관상동맥좌전강지적방법건립심기결혈재관주모형,결혈45 min후재관주3 h。실험결속후용매련면역흡부법(ELISA)검측대서혈청기산격매MB동공매(CK-MB)、종류배사인자-α(TNF-α)화백세포개소-10(IL-10)적함량,탈양핵감산말단전이매개도적dUTP결구말단표기법(TUNEL)검측심기세포적조망지수。
<br> 결과:여가수술조상비,결혈재관주조급장홍화산조혈청CK-MB화TNF-α함량명현상승(P<0.01),장홍화산조IL-10함량명현상승(P<0.01),차이균유통계학의의。여결혈재관주조상비,장홍화산조적혈청CK-MB、TNF-α함량급심기세포조망지수명현강저(P<0.01),차이유통계학의의;이혈청IL-10함량명현승고(P<0.01),차이유통계학의의。
<br> 결론:장홍화산예처리재심기결혈재관주손상중가이통과부성조절TNF-α,정성조절IL-10래감경염증반응병억제심기세포적조망,발휘심기보호작용。
Objective: To explore the effect and mechanism of crocetin (CRO) pretreatment on inflammatory reaction and apoptosis of myocardial ischemia-reperfusion (I/R) injury in experimental rats.
<br> Methods: A total of 30 male Wistar rats were randomly divided into 3 groups: Sham group, the rats received intragastric sodium carboxymethyl cellulose (CMC-Na) for 7 days followed by the operation without occlusion. I/R group, the rats received intragastric CMC-Na for 7 days followed by left anterior descending (LAD) coronary artery occlusion for 45 min with subsequent reperfusion for 3 hours. CRO group, the rats received intragastric crocetin 50 mg/(kg.day) for 7 days followed by I/R procedure. n=7 in each group. The levels of creatine kinase-MB (CK-MB), tumor necrosis factor-α (TNF-α) and inlfammation cytokine interleukin-10 (IL-10) were examined by ELISA, the myocardial apoptosis index was determined by TUNEL staining.
<br> Result: Compared with Sham group, I/R group and CRO group had increased levels of CK-MB, TNF-α, and CRO group had increased IL-10 level, all P<0.01. Compared to I/R group, CRO group showed decreased levels of CK-MB, TNF-αand myocardial apoptosis index, while increased IL-10 level, all P<0.01.
<br> Conclusion: Crocetin pretreatment could down-regulate TNF-α expression, up-regulate IL-10 expression and therefore reducing the inlfammatory reaction in experimental rats to protect myocardial apoptosis.