葛根素对局灶性脑缺血再灌注大鼠行为及病理改变的保护作用

目的:研究葛根素对大鼠局灶性脑缺血再灌注损伤的保护作用,并探讨其神经保护作用的机制。方法:Wistar大鼠分为3组:假手术组,模型组和给药组,采用局灶性脑缺血再灌注模型(即大脑中动脉栓塞法),预先给予葛根素,然后分别观察和检测脑组织形态学、脑组织含水量及神经功能障碍评分指标。结果:给药组与模型组相比,脑组织病理损害和水肿明显减轻,梗死面积减少,神经功能障碍评分明显降低。结论:葛根素对大鼠局灶性脑缺血再灌注损伤具有一定的保护作用。     

西红花酸对大鼠脑缺血再灌注Caspase-3mRNA和NF-κB表达的影响

目的:探讨西红花酸对脑缺血再灌注Caspase-3mRNA和NF-κB表达的影响。方法:SD大鼠随机分为6组,即假手术组、模型组、尼莫地平组(5 mg.kg-1)和西红花酸组(10,20,40 mg.kg-1)。假手术组、模型组给予等容量的生理盐水。各组大鼠每日上午灌胃给药1次,连续给药7 d。采用线栓法阻塞大脑中动脉制备局灶性脑缺血2 h再灌注22 h模型。观察大鼠神经功能缺陷评分、脑梗死体积,测定脑组织GSH-Px活性及Caspase-3mRNA和NF-κB表达。结果:西红花酸呈剂量依赖性的降低脑组织梗死体积、改善神经功能,增加脑组织GSH-Px活性,减少Caspase-3mRNA和NF-κB表达。结论:西红花酸可能通过增加GSH-Px活性,减少Caspase-3mRNA和NF-κB表达,保护脑缺血再灌注损伤。     

藁本内酯对脑缺血再灌注大鼠的作用及其抗炎机制的研究

目的 观察藁本内酯对再灌注局灶性脑缺血损伤大鼠模型的神经保护作用及其炎症因子的调控.方法 采用局部脑血流监测,建立线栓法大鼠脑缺血再灌注(tMCAO)模型.SD大鼠随机分为假手术组、溶媒对照组和药物治疗组.除假手术组外,于再灌注后0、3 h分别ip给予3%吐温80溶媒、20 mg·kg-1藁本内酯.缺血2 h后再灌注,24 h后进行神经功能评分,经TTC染色法测定脑组织梗死体积,并在实验过程中监测脑局部血流的下降和再灌注情况.给药后24 h,对大鼠脑组织进行免疫组织化学实验分析统计,从蛋白水平上观察藁本内酯对炎症因子NF-κB的控制作用.结果 藁本内酯能显著改善tMCAO大鼠神经功能(P＜0.01),给药组与溶媒组比较,脑梗死体积明显缩小(P＜0.01),炎症因子NF-κB的蛋白表达量明显减少(P＜0.01).结论 藁本内酯对大鼠脑缺血再灌注损伤有显著保护作用并明显减少炎症反应中相关因子的蛋白表达.     

银杏叶提取物对大鼠局灶性脑缺血再灌注损伤的保护作用

目的:研究银杏叶提取物(EGB)对大鼠局灶性脑缺血再灌注损伤的保护作用。方法:采用线栓法制备大鼠大脑中动脉缺血再灌注模型,随机分成假手术、模型、丹参和EGB组,分别在脑缺血再灌注后24h处死大鼠,观察其神经功能缺失评分,应用TTC染色观察梗死体积,尼氏染色观察神经元形态结构特征并计数健存神经元数量,检测血清氧化物歧化酶(SOD)和丙二醛(MDA)变化,Western-blot检测脑组织诱导型一氧化氮合酶(iNOS)表达。结果:经过EGB治疗后,EGB组行为学评分和脑组织梗死体积测量均低于模型组(P<0.05)。EGB组的坏死及凋亡细胞大大减少,健存神经元数目((66.91±7.53)%)较模型组((43.51±4.77)%)显著增多(P<0.05)。EGB组血清SOD高于模型组,MDA低于模型组(P<0.05)。24h后模型组iNOS表达较假手术组和EGB组明显增高(P<0.05)。结论:EGB能显著减小梗死范围,减少神经细胞凋亡,提高SOD含量,降低MDA含量和抑制iNOS表达,对大鼠局灶性脑缺血再灌注损伤具有良好的神经保护作用。     

葛根素衍生物对局灶性脑缺血再灌注的保护作用及对caspase-3表达的影响

目的:观察葛根素衍生物（G20）对局灶性脑缺血再灌注损伤大鼠是否具有保护作用,并探讨其作用机制,其保护作用是否与caspase-3的表达具有相关性。方法:以Longa发明的线栓法制作局灶性脑缺血再灌注模型,大鼠被随机分为6组,分别为假手术组、模型组、G(25.0 mg·kg^-1)组、G20(12.5、25.0、50.0 mg·kg^-1)组,给药组于缺血后1.5 h及6 h两次尾静脉给药。通过评价大鼠缺血后神经行为学、脑梗死面积及脑含水量的变化,HE染色观察脑组织神经元病理学改变,以观察G20是否具有脑缺血再灌注损伤保护作用;并以原位末端标记法检测大脑神经元凋亡数目的改变及免疫组化法检测其caspase-3的表达来探讨其作用机制。结果:G20能改善脑缺血后4 h、24 h的神经肌肉运动和前庭运动功能,减少脑缺血再灌注后脑梗死面积及降低脑含水量,减轻脑组织的病理形态学改变,与G组比较,未见大鼠尿液变红等不良反应。G20明显减少了脑组织凋亡细胞的数目,减少了caspase-3的表达。结论:G20对大鼠脑缺血再灌注损伤有保护作用,其机制可能是通过抑制caspase-3的表达发挥抗神经元凋亡作用。     

益气活血方对脑缺血-再灌注损伤脑水肿、神经体征及Fas和FasL蛋白表达的影响

目的:探讨益气活血方对脑缺血-再灌注损伤大鼠脑水肿、神经体征及Fas和FasL蛋白表达的影响.方法:采用气虚血瘀证局灶性脑缺血-再灌注损伤大鼠模型,以及用线栓法大鼠大脑中动脉阻塞复制局部脑缺血-再灌注模型,缺血2 h再灌注1,3,7 d.用干湿重法、Logna等评分标准,评价脑水肿、神经体征;用免疫组化染色法分别检测缺血皮质Fas,FasL蛋白表达.结果:与模型组比较,益气活血方组脑组织含水量、神经体征明显改善,Fas,FasL蛋白表达显著降低.结论:益气活血方可能通过抑制Fas,FasL蛋白表达,降低脑组织含水量和神经缺损体征分数,改善气虚血瘀证局灶性脑缺血-再灌注损伤.     

蝙蝠葛酚性碱调节p-NR1和NR2A对脑缺血再灌注大鼠发挥神经保护作用

目的：探讨蝙蝠葛酚性碱（phenolic alkaloids of Menispermum dauricum,PAMD）对脑缺血再灌注大鼠的神经保护作用及其机制。方法：大鼠局灶性脑缺血模型采用大脑中动脉线栓法制作。动物随机分为假手术组,缺血再灌注组,PAMD低（25 mg·kg^-1）、中（50 mg·kg^-1）、高（75 mg·kg^-1）剂量治疗组。持续栓塞2 h拔出线栓,再灌注4 h,然后断头取脑。干湿重法求出脑组织含水量,伊文思蓝含量测定法观察血脑屏障通透性。分离皮层组织,免疫印迹方法检测NR1和NR2A及各自对应的磷酸化蛋白。结果：（1）PAMD可以减少脑缺血再灌注大鼠脑组织含水量（P<0.05）,降低脑缺血再灌注大鼠血脑屏障通透性（P<0.05）;（2）与假手术组比较,缺血再灌注组NR1,NR2A,p-NR2A表达无明显变化,p-NR1表达减少（P<0.05）;与缺血再灌注组比较,PAMD使p-NR1表达增多（P<0.05）,NR2A表达减少（P<0.05）。结论：PAMD可通过调节p-NR1和NR2A对脑缺血再灌注大鼠发挥神经保护作用。     

银杏内酯B对大鼠脑缺血再灌注损伤的保护作用

目的探讨银杏内酯B对脑缺血再灌注损伤的保护作用及分子机制。方法大鼠随机分为假手术组、模型组、阳性药组(金纳多12 mg·kg-1)、银杏内酯B 1,2和4 mg·kg-1剂量组,采用线栓法建立大鼠大脑中动脉缺血再灌注模型,TTC染色测定梗死范围,HE染色检测脑组织病理变化,试剂盒检测大鼠脑组织匀浆中超氧化物歧化酶(SOD)活性、一氧化氮(NO)及丙二醛(MDA)含量的变化,透射电镜观察银杏内酯B对神经元超微结构改变,免疫组化法及Western blotting法检测胱天蛋白酶3,Bax和Bcl-2蛋白表达的影响,RT-CR检测胱天蛋白酶3、Bax和Bcl-2mRNA表达。结果与模型组比较,银杏内酯B可缩小梗死范围,减轻脑组织病理改变,明显提高脑组织SOD活性,降低脑组织中NO及MDA含量,免疫组化及Western blotting和RT-PCR结果显示脑缺血再灌注后胱天蛋白酶3、Bax蛋白及mRNA表达上调,Bcl-2表达降低;而银杏内酯B可下调胱天蛋白酶3、Bax的蛋白及mRNA表达,上调Bcl-2表达。结论银杏内酯B可减轻脑缺血再灌注神经细胞损伤,其机制可能与减少自由基产生,减轻NO神经毒性,抑制线粒体通路的诱导的神经细胞凋亡有关。     

康脑液1号对大鼠脑缺血再灌注细胞凋亡及GFAP表达的影响

目的观察康脑液1号对SD大鼠脑缺血再灌注细胞凋亡及胶质纤维酸性蛋白（GFAP）表达的影响,探讨其对脑缺血再灌注保护作用的可能机制。方法采用栓线法复制SD大鼠大脑中动脉梗死模型（MCAO）,分别于缺血2h后再灌注1d、3d、7d。将180只大鼠随机分为5组（每组36只）：假手术组,模型（缺血再灌注）组,盐酸法舒地尔注射液组,康脑液1号A组,康脑液1号B组。观察康脑液1号对大鼠脑缺血再灌注神经功能、脑梗死面积和病理形态学的影响。采用TUNEL法检测缺血半暗带和灶中心区凋亡细胞,采用免疫组化法检测缺血半暗带和灶中心区GFAP表达的变化。结果模型组与假手术组相比,缺血半暗带凋亡细胞及GFAP阳性细胞数目增多（P〈0.05）。康脑液1号可不同程度地降低实验性脑缺血大鼠的神经功能评分、减小梗死灶面积并减轻脑组织病理形态改变（P〈0.05）;康脑液1号2组大鼠脑组织缺血半暗带凋亡细胞和GFAP表达减少,而梗死灶中心凋亡细胞和GFAP表达却增多。结论康脑液1号可能通过调节脑缺血再灌注细胞凋亡和GFAP表达而促进脑损伤修复及重塑,从而发挥脑保护作用。     

七十味珍珠丸对大鼠脑缺血再灌注损伤的抗凋亡作用

目的观察七十味珍珠丸(RNSP)对大鼠脑缺血再灌注损伤的保护作用及抗凋亡机制。方法采用大脑中动脉阻塞模型,实验分组:假手术组、模型组、溶媒对照组和RNSP组。神经功能缺失评分观察大鼠神经缺失体征,红四氮唑染色测量脑组织梗死面积,及Western blot检测海马组织Bcl-2/Bax比值和caspase-3的蛋白表达。结果与假手术组比较,模型组大鼠神经缺失体征明显,脑梗死面积明显增加,Bcl-2/Bax比值减小,caspase-3蛋白表达明显升高。而与模型组比较,RNSP组大鼠神经缺失体征明显改善,脑梗死面积减少,Bcl-2/Bax比值增大,caspase-3蛋白表达明显降低。结论 RNSP对大鼠脑缺血再灌注损伤具有保护作用,与其上调Bcl-2/Bax比值,减少caspase-3蛋白表达的抗凋亡作用有关。     

姜黄素对大鼠缺血性脑损伤炎症反应和血脑屏障通透性的影响

目的研究姜黄素对大鼠脑缺血/再灌注损伤炎症反应和血脑屏障通透性的作用,并进一步探讨其潜在的机制。方法利用线栓法制备大鼠脑缺血/再灌注损伤模型,随机分为对照组、模型组和姜黄素治疗组。检测大鼠神经功能损伤评分和脑梗死体积;通过检测脑组织髓过氧物酶的含量说明中性粒细胞浸润和炎症反应的程度;检测脑组织伊文思蓝的含量说明血脑屏障的破坏程度;ELISA检测脑组织肿瘤坏死因子-α(TNF-α)的含量;免疫印记法检测基质金属蛋白酶-9(MMP-9)的表达变化。结果姜黄素治疗组减轻神经功能损伤、脑梗死体积,并减轻中性粒细胞在脑组织的浸润程度、改善血脑屏障完整性。同时姜黄素还可以降低脑组织TNF-α的含量以及MMP-9的表达水平。结论姜黄素通过减轻炎症反应和血脑屏障破坏对大鼠脑缺血/再灌注损伤起脑保护作用。姜黄素的脑保护作用可能与其降低TNF-α含量和MMP-9的表达有关。     

脑缺血再灌注损伤大鼠大脑皮质NR2A及NR2B受体表达变化

目的探讨N-甲基-D-天冬氨酸受体亚单位NR2A/2B表达与缺血再灌注损伤的关系。方法建立局灶性大脑中动脉阻塞大鼠模型观察缺血2 h再灌6～96 h的组织病理学改变,实时荧光定量PCR及Western印迹法测定大脑皮质NR2A/2B mRNA及蛋白表达。结果大鼠缺血再灌注后6 h,皮质开始出现明显病理学改变,12 h可见血管内有淤血,24 h梗死区锥体细胞出现严重的核固缩、核溶解,几乎看不到正常神经元,48 h出现大面积角质化,96 h可见炎症细胞浸润。与假手术组相比,再灌组NR2A/2B mRNA于再灌注6 h即开始一直持续明显下降(P<0.01),再灌12和24 hNR2A/2B mRNA比值均为1∶2,偏离正常的1∶1,48 h两者的表达开始上调,至96 h NR2A/2B mRNA比值达到1∶1;再灌24 h后NR2A蛋白表达显著降低(P<0.05);NR2B蛋白于再灌6 h开始明显降低,一直持续到24 h(P<0.01),48 h开始上调,96 h后蛋白表达接近假手术组水平。结论缺血2 h再灌注24 h后神经元损伤最严重,并与NR2A/2B表达改变存在时间一致性和受体亚型选择性。     

米诺环素对脑缺血再灌注大鼠脑保护作用的实验研究

目的：探讨米诺环素（ MC）的脑缺血保护作用及可能机制。方法健康雄性SD大鼠（250±30） g随机分成假手术组、缺血再灌注组、MC低剂量干预组、MC高剂量干预组,建立大鼠右侧大脑中动脉阻断（ middle cerebral artery occulusion ,MCAO）局灶性脑缺血再灌注模型,按再灌注不同时点（2、6、12、24和48 h）随机分为5个亚组,每组6只,用于神经功能缺损评分、脑梗死面积测定及反转录聚合酶链反应法（ RT-PCR）半定量检测mGluR1-mRNA的表达水平。结果造模术后,缺血再灌注组及MC干预组均出现一定程度神经功能障碍,与缺血再灌注组相比,MC干预组神经功能评分降低,脑梗死面积减少,mGluR1-mRNA的表达降低,差异有统计学意义（P＜0．05）。结论米诺环素可降低缺血再灌注大鼠的神经功能评分,缩小缺血再灌注大鼠的脑梗死面积,减少mGluR1-mRNA表达。这可能是米诺环素神经保护作用的机制之一。     

Neuroprotective effects of emodin-8-O-beta-D-glucoside in vivo and in vitro

Emodin-8-O-beta-D-glucoside extracted from the traditional Chinese medicinal herb Polygonum cuspidatum Sieb. et Zucc is widely used to treat acute hepatitis possibly by antioxidative mechanisms. The present study was designed to investigate whether emodin-8-O-beta-D-glucoside exerted neuroprotective effects on the focal cerebral injury induced by ischemia and reperfusion in vivo and on the neuronal damage induced by glutamate in vitro, and to study the possible mechanisms. Male Wistar rats were used to establish the model of ischemia and reperfusion. The behavioral test was performed and the cerebral infarction area was assessed in the brain slices stained with 2% 2,3,5-triphenyl tetrazolium chloride to evaluate the neuroprotective effects of emodin-8-O-beta-D-glucoside. Superoxide dismutase (SOD) activity, total antioxidative capability and malondialdehyde (MDA) level in the brain tissue were determined with spectrophotometrical methods to probe the primary mechanisms of emodin-8-O-beta-D-glucoside. In vitro, the neuroprotective effects of emodin-8-O-beta-D-glucoside were tested in the cultured cortical cells of fetal rats exposed to glutamate. Emodin-8-O-beta-D-glucoside concentration in plasma and brain tissue was also measured to examine distribution of emodin-8-O-beta-D-glucoside in the brain. The results showed that the treatment of rats with emodin-8-O-beta-D-glucoside reduced the neurological deficit score and the cerebral infarction area, increased SOD activity and total antioxidative capability, and decreased MDA level in the brain tissue in dose-dependent way. Emodin-8-O-beta-D-glucoside also inhibited the neuronal damage induced by glutamate. Besides, emodin-8-O-beta-D-glucoside was able to penetrate blood-brain barrier and distribute in the brain tissue. These findings demonstrate that emodin-8-O-beta-D-glucoside is able to provide neuroprotection against cerebral ischemia-reperfused injury and glutamate induced neuronal damage through exerting antioxidative effects and inhibiting glutamate neurotoxicity.     

Neuroprotective effect of ONO-1078, a leukotriene receptor antagonist, on transient global cerebral ischemia in rats

AIM: To determine whether ONO-1078 {pranlukast, 4-oxo-8-[p-(4-phenylbutyloxy)benzoyl-amono]-2-(tetrazol-5-yl)-4H-1-benzopyran hemihydrate}, a potent leukotriene receptor antagonist, possesses a neuroprotective effect on global cerebral ischemia in rats, and to explore its possible mechanism of action. METHODS: Transient global cerebral ischemia was induced by four-vessel occlusion for 10 min and followed by 72-h reperfusion. ONO-1078 (0.03-0.3 mg/kg) and edaravone (MCI-186, 3-methyl-1-phenyl-2-pyrazolin-5-one, a neuroprotective agent) 10 mg/kg were ip injected 30 min before ischemia and 1 h after reperfusion, and once a day afterward. Neurological outcome was evaluated before ischemia and 24, 48, 72 h after reperfusion. Neuron density, the expressions of N-methyl-Daspartate (NMDA) receptor subunit proteins (NR1, NR2A, NA2B) and vascular cell adhesion molecule 1(VCAM-1) in the cerebral cortex and hippocampus were measured at 72 h after reperfusion. RESULTS: ONO-1078 (0.1, 0.3 mg/kg) and edaravone (10 mg/     

白三烯受体拮抗剂ONO-1078对大鼠短暂性全脑缺血的神经保护作用

AIM: To determine whether ONO-1078 {pranlukast, 4-oxo-8-[p-(4-phenylbutyloxy)benzoyl-amono]-2-(tetrazol-5-yl)-4H-1-benzopyran hemihydrate), a potent leukotriene receptor antagonist, possesses a neuroprotective effect on global cerebral ischemia in rats, and to explore its possible mechanism of action. METHODS: Transient global cerebral ischemia was induced by four-vessel occlusion for 10 min and followed by 72-h reperfusion. ONO-1078(0.03-0.3mg/kg) and edaravone (MCI-186, 3-methyl-1-phenyl-2-pyrazolin-5-one, a neuroprotective agent) 10 mg/kg were ip injected 30 rain before ischemia and 1 h after reperfusion, and once a day afterward. Neurological outcome was evaluated before ischemia and 24, 48, 72 h after reperfusion. Neuron density, the expressions of N-methyl-D-aspartate (NMDA) receptor subunit proteins (NR1, NR2A, NA2B) and vascular cell adhesion molecule 1 (VCAM-1) in the cerebral cortex and hippocampus were measured at 72h after reperfusion. RESULTS: ONO-1078 (0.1,0.3mg/kg) and edaravone (10 mg/kg) improved ischemia-induced neurological deficiency and reduced neuron death.ONO-1078 (0.1, 0.3mg/kg) significantly inhibited the enhanced expression of NMDA receptor subunit protein NR2A in the cortex and VCAM-1 in the hippocampus of ischemic rats. CONCLUSION: ONO-1078 possesses a neuroprotective effect on global cerebral ischemia in rats, and its mechanism may be partly related to the inhibition of the upregulation of NR2A and VCAM- 1 in different regions of the brain.     

Blood brain barrier permeability and therapeutic time window of Ginkgolide B in ischemia–reperfusion injury

The goal of this study was to estimate the blood brain barrier (BBB) permeability of Ginkgolide B in normal condition and models of ischemia both in vivo and in vitro. A sensitive LC-MS/MS analytical method was developed to determinate accurately the concentration of Ginkgolide B in cell, plasma and brain tissue. The injured rat brain microvessel endothelial cells (RBMECs) induced by Na₂S₂O₄ served as a hypoxia/reoxygenation model in vitro. Intracellular concentration of Ginkgolide B increased in injured cells in a concentration-dependent manner. As a model of in vivo—ischemia/reperfusion, we performed middle cerebral artery occlusion (MCAO) in rats. Concentration of Ginkgolide B in the brain tissues showed higher in cerebral ischemia-reperfused animals than that in normal rats. To evaluate potential clinical effect of Ginkgolide B, we determined therapeutic time window in MCAO rats. Up to i.v. administration at 2 h after reperfusion of rats, Ginkgolide B could decrease infarction volume and brain edema, exerting significant protective effect in cerebral ischemia injury. In conclusion, Ginkgolide B could pass through BBB, especially after ischemia–reperfusion injury of brain, and might be therapeutically effective for ischemia/reperfusion injury of human brain.     

无创性延迟肢体缺血预适应促进mitoKATP开放减轻大鼠脑缺血/再灌注损伤

目的:探讨无创性延迟肢体缺血预适应(noninvasive delayed limb ischemic preconditioning,NDLIP)促进线粒体ATP敏感性钾通道(mitoK_ATP)开放,发挥脑缺血/再灌注(I/R)损伤神经保护作用的相关机制。方法:健康雄性Wistar大鼠随机分为Sham组、I/R组、NDLIP组和NDLIP+5-HD组,每组12只。缺血1h/再灌注24h后进行神经行为评分,TTC染色法测量脑梗死面积。提取缺血皮层线粒体,检测线粒体膜电位和呼吸链复合体Ⅰ、Ⅱ及Ⅳ的活性。Western blot法检测缺血大脑皮层中Bax、Bcl-2和Caspase 3蛋白的表达。结果:与I/R组相比,NDLIP组神经行为评分明显降低,脑梗死面积明显缩小,NDLIP可对抗脑缺血I/R损伤,发挥神经保护作用。NDLIP组缺血皮层线粒体膜电位的降低幅度较小,线粒体复合体活性明显提高,Bax/Bcl-2比值与Caspase 3蛋白的表达均显著降低,NDLIP可改善I/R后脑组织线粒体功能,抑制I/R后线粒体相关凋亡通路。mitoK_ATP抑制剂5-HD可减弱甚至抵消以上保护作用。结论:NDLIP可能通过促进mitoK_ATP开放而减轻大鼠脑I/R损伤。     

依托咪酯对大鼠脑缺血再灌注损伤的保护作用及机制

目的 探讨依托咪酯对大鼠脑缺血再灌注损伤的神经保护作用及其机制.方法 将120只♂ SD大鼠随机均分为假手术组、模型组和依托咪酯高、低剂量组,ip给予各组大鼠相应药物后,采用线栓法制备大脑中动脉栓塞再灌注模型,评价依托咪酯对大鼠脑缺血再灌注的保护作用.参照Bederson评分标准评价大鼠的神经功能损伤,采用TTC染色法观察大鼠的脑梗死体积,采用免疫组化法分析大鼠海马CA1区NAIP、caspase-3及caspase-7蛋白的表达,采用HE染色法观察大鼠脑组织的病理变化.结果 与模型组比较,依托咪酯组大鼠的神经功能损伤和脑梗死容积明显减轻,大鼠海马CA1区NAIP蛋白的表达明显增强,caspase-3蛋白的表达明显减少;依托咪酯高、低剂量组间比较无明显差异;各组大鼠海马CA1区caspase-7蛋白的表达无显著差异.结论 依托咪酯对大鼠脑缺血再灌注造成的脑损伤具神经细胞保护作用,其机制可能与上调NAIP蛋白的表达、抑制caspase-3蛋白的活化有关.