[關(guān)鍵詞]腦缺血再灌注;中藥;中藥單體;中藥復(fù)方;發(fā)病機(jī)制;作用機(jī)制 [中圖分類號(hào)]R255.2 [文獻(xiàn)標(biāo)志碼]A [文章編號(hào)]doi:10.3969/j.issn.1674-070X.2025.06.029
Injury mechanisms at different stages of cerebral ischemia-reperfusion and the interventional effects of Chinese medicines
ZHOU Xin',LI Lan', FU Ziyu’, OUYANG Linqi',HU Hua’, CHEN Zhen’, DENG Guiming I,2: ¥ 1.The First Hospital of Hunan University of Chinese Medicine,Changsha, Hunan 41Ooo7,China; 2.The Second Hospital of Hunan University of Chinese Medicine,Changsha, Hunan 41ooo5,China
[Abstract]Cerebralischemia-reperfusioninjury(CIRI),acommoncomplicationfollowingstroke,ischaracterizedbycomplex pathogenesisandpoorclinicalprognosis.CIRIcanbedividedintothreephases:acuteischemiaearlyreperfusion,andlate reperfusionEachphaseexhibitsdistinctyetinterconnectedinjurymechanismsthatcolectivelyacceleratediseaseprogession, ultimatelyleading toirreversiblebraindamage.Theacuteischemicphaseisdominatedbyenergymetabolismdysfunctioand calciumoverload;theearlyreperfusionphaseismarkedbysevereoxidativestressandinflammatoryresponses;whilethelate reperfusionphaseinvolvesferroptosisandimpairedneurogenesis,contributingtoieversiblebraintissedamage.Chinese medicines demonstratesuniqueadvantages intreating CIRIbyexertingsynergisticefectsthroughmultiplepathwaysandtargets, suchasantioxidantstress,inhibitinginflammatoryresponses,protectingmitochondrialfunction,andregulatingcalciumion homeostasis,therebycomprehensivelyameliorating thepathologicalprocessofCIRIThispapersystematicallyreviewstephased injurymechanismsofCRIandsummarizestheexperimentalresearchprogressofChinesemedicinesinterventionsinIIaiming to providenew insights for the mechanistic studyand clinical translation of Chinese medicines in treating CIRI.
[Keywords]cerebral ischemia-reperfusion;Chinese medicines; Chinese medicine monomer;Chinese medicinecompound; )athogenesis;mechanism of action
腦缺血再灌注損傷(cerebral ischemia-reperfu-sion injury,CIRI)是指在缺血性腦卒中后,血流和氧氣供應(yīng)恢復(fù),神經(jīng)細(xì)胞結(jié)構(gòu)和功能進(jìn)一步受損的病理過程[]。根據(jù)病理生理變化,CIRI可分為急性缺血期、再灌注早期和再灌注后期3個(gè)主要階段2。在急性缺血期,腦組織缺氧導(dǎo)致線粒體功能紊亂,腺嘌呤核苷三磷酸(adenosine triphosphate,ATP)生成減少,無(wú)法滿足細(xì)胞正常功能需求,細(xì)胞內(nèi)離子泵功能障礙,引起細(xì)胞內(nèi)鈣離子超載(這一時(shí)期特指實(shí)驗(yàn)或臨床中血流中斷并計(jì)劃恢復(fù)的階段);再灌注后數(shù)分鐘至數(shù)天(即再灌注早期),氧化應(yīng)激的加劇導(dǎo)致線粒體持續(xù)被活性氧(reactive oxygen species,ROS)損傷,同時(shí)炎癥反應(yīng)被進(jìn)一步激活;再灌注后數(shù)小時(shí)至數(shù)周(即再灌注后期),鐵死亡導(dǎo)致的細(xì)胞損傷和神經(jīng)元再生障礙愈發(fā)嚴(yán)重3。若缺乏有效干預(yù),這些相互作用的機(jī)制最終會(huì)導(dǎo)致腦組織不可逆的損傷。中藥及其復(fù)方在治療CIRI領(lǐng)域展現(xiàn)出獨(dú)特的優(yōu)勢(shì),能夠通過多成分、多途徑、多靶點(diǎn)的作用機(jī)制干預(yù)CIRI的復(fù)雜病理過程,例如通過調(diào)節(jié)關(guān)鍵信號(hào)通路抑制細(xì)胞凋亡、氧化應(yīng)激和炎癥反應(yīng)等多個(gè)環(huán)節(jié),發(fā)揮神經(jīng)保護(hù)作用,同時(shí)通過促進(jìn)血管生成、改善血腦屏障功能以及激活神經(jīng)干細(xì)胞增殖和分化等機(jī)制,為腦卒中后神經(jīng)功能重建提供干預(yù)策略4。本文系統(tǒng)總結(jié)CIRI不同階段的主要機(jī)制,并探討中藥活性成分、單味藥及中藥復(fù)方對(duì)CIRI的作用靶點(diǎn),以期為中醫(yī)藥治療CIRI的臨床應(yīng)用及新藥開發(fā)提供一定理論基礎(chǔ)。
1CIRI不同階段的損傷機(jī)制
1.1 急性缺血期
線粒體能量代謝障礙和鈣離子超載往往出現(xiàn)在CIRI早期階段,即急性缺血期。供氧中斷致使線粒體內(nèi)膜末端電子傳遞鏈(electron transferchain,ETC)上的復(fù)合體I\~V活性受抑制,煙酰胺腺嘌呤二核苷酸氧化還原失衡,ATP合成顯著減少,引起能量代謝障礙5。同時(shí),細(xì)胞內(nèi)電化學(xué)梯度改變,促使鈣離子通道異常開放,大量 Ca2+ 內(nèi)流造成鈣超載6-7]。鈣超載通過級(jí)聯(lián)反應(yīng)加劇線粒體損傷:鈣蛋白酶-1/2異常活化可降解細(xì)胞骨架蛋白,引發(fā)突觸前膜谷氨酸囊泡過量釋放,產(chǎn)生興奮性氨基酸神經(jīng)毒性;線粒體鈣單向轉(zhuǎn)運(yùn)體介導(dǎo)的鈣超載可誘導(dǎo)線粒體膜通透性轉(zhuǎn)換孔(mitochondrial permeabilitytransitionpore,mPTP)持續(xù)開放,導(dǎo)致其內(nèi)膜通透性改變及基質(zhì)腫脹[8-9]。在線粒體損傷過程中,細(xì)胞色素C(cy-tochromeC,CytC)及細(xì)胞凋亡誘導(dǎo)因子釋放,激活胱天蛋白酶(cysteine aspartic acid specific protease,Caspase)-9/Caspase-3級(jí)聯(lián)反應(yīng),最終導(dǎo)致DNA片段化及程序性細(xì)胞死亡[0]。上述病理機(jī)制表明,急性缺血期線粒體能量代謝異常與鈣穩(wěn)態(tài)失衡的共同作用,成為神經(jīng)元不可逆損傷的關(guān)鍵分子基礎(chǔ)。
1.2 再灌注早期
在缺血再灌注病理進(jìn)程早期,血流再灌注雖能恢復(fù)組織供氧,但會(huì)觸發(fā)氧化應(yīng)激反應(yīng)。線粒體ETC發(fā)生解偶聯(lián),導(dǎo)致超氧陰離子及羥自由基等ROS過量生成]。ROS通過雙重機(jī)制加劇神經(jīng)損傷,一是直接攻擊線粒體內(nèi)膜,致膜電位崩潰、ATP合成效率降低,引發(fā)脂質(zhì)過氧化,造成線粒體結(jié)構(gòu)不可逆損傷;二是激活核因子 κB (nuclear factor-kB, NF-κB )信號(hào)通路,上調(diào)腫瘤壞死因子- ??α∝ (tumor necrosisfactor- ??αα?αα?αα ,TNF- σ?αα )等促炎因子表達(dá),促進(jìn)中性粒細(xì)胞浸潤(rùn)與小膠質(zhì)細(xì)胞M1型極化,形成炎癥-氧化應(yīng)激反饋循環(huán)[11-12]。TNF- σ?α?α?α?α 可誘導(dǎo)星形膠質(zhì)細(xì)胞轉(zhuǎn)化,破壞血腦屏障,引發(fā)血管源性腦水腫及免疫細(xì)胞外滲[13-14]。上述病理過程表明,再灌注早期氧化應(yīng)激與炎癥網(wǎng)絡(luò)的交互作用是腦缺血繼發(fā)性損害的核心驅(qū)動(dòng)因素。
1.3 再灌注后期
在CIRI后期,鐵死亡與神經(jīng)再生障礙成為不可逆神經(jīng)損傷的核心病理基礎(chǔ)。轉(zhuǎn)鐵蛋白受體1表達(dá)上調(diào)及鐵輸出蛋白表達(dá)抑制,導(dǎo)致通過二價(jià)金屬離子轉(zhuǎn)運(yùn)體介導(dǎo)的線粒體鐵內(nèi)流增多, Fe2+ 催化多不飽和脂肪酸脂質(zhì)過氧化,破壞線粒體嵴結(jié)構(gòu)并誘導(dǎo)mPTP持續(xù)開放[15]。同時(shí),谷胱甘肽過氧化物酶4活性因谷胱甘肽耗竭受抑,引發(fā)線粒體膜破裂及鐵死亡[16-17]。神經(jīng)再生障礙表現(xiàn)為修復(fù)信號(hào)抑制及微環(huán)境毒性增強(qiáng):腦源性神經(jīng)營(yíng)養(yǎng)因子(brain-de-rivedneurotrophicfactor,BDNF)表達(dá)下調(diào),抑制突觸可塑性調(diào)控功能;活化的星形膠質(zhì)細(xì)胞分泌抑制性基質(zhì)形成膠質(zhì)瘢痕,進(jìn)一步阻斷軸突生長(zhǎng)[18-19]。鐵死亡釋放的脂質(zhì)過氧化產(chǎn)物也會(huì)抑制神經(jīng)細(xì)胞遷移與分化,形成鐵死亡-神經(jīng)再生抑制的惡性循環(huán)[20-21]。上述機(jī)制表明,再灌注后期的鐵死亡與神經(jīng)再生障礙通過“氧化-炎癥-再生抑制\"相互影響,導(dǎo)致神經(jīng)元不可逆性丟失及神經(jīng)網(wǎng)絡(luò)重構(gòu)失敗,最終引發(fā)持久性神經(jīng)功能缺損。
2中藥及其復(fù)方干預(yù)CIRI
2.1 中藥活性成分
中藥活性成分是中藥藥效的物質(zhì)基礎(chǔ),通過靶向調(diào)控線粒體穩(wěn)態(tài)、氧化應(yīng)激、炎癥反應(yīng)與神經(jīng)再生等病理環(huán)節(jié)干預(yù)CIRI,體現(xiàn)了中藥“多成分-多靶點(diǎn)-多通路\"協(xié)同作用的獨(dú)特優(yōu)勢(shì)。
異甘草素作為中藥甘草的活性成分,具有抗CIRI作用。劉成等22發(fā)現(xiàn),中高劑量異甘草素能顯著增加大鼠神經(jīng)干細(xì)胞C17.2的成球數(shù)量。神經(jīng)干細(xì)胞的增殖能力與神經(jīng)修復(fù)密切相關(guān),該結(jié)果為異甘草素促進(jìn)腦損傷后神經(jīng)再生提供了直接證據(jù)。在體內(nèi)實(shí)驗(yàn)中,術(shù)后 12h 開始進(jìn)行異甘草素干預(yù),連續(xù)給藥14d后能有效減少大腦中動(dòng)脈閉塞模型(middlecerebralarteryocclusion,MCAO)大鼠的腦梗死體積,降低腦含水量,同時(shí)上調(diào)Notch受體細(xì)胞內(nèi)結(jié)合域1和Hes1蛋白表達(dá)水平,說明異甘草素能通過調(diào)控Notch信號(hào)通路發(fā)揮保護(hù)作用。孫家賀等[23通過線栓法構(gòu)建MCAO大鼠模型,再灌注前腹腔注射異丹葉大黃素,發(fā)現(xiàn)治療后磷脂酰肌醇3激酶(phosphoinositide3-kinase,PI3K)蛋白激酶B(proteinkinase B,Akt)蛋白表達(dá)顯著升高,且實(shí)時(shí)熒光定量結(jié)果顯示,抗凋亡因子的基因表達(dá)量上調(diào),提示異丹葉大黃素可能通過PI3K/Akt信號(hào)通路減輕腦損傷。何首烏昔已被證實(shí)在CIRI中具有顯著的神經(jīng)保護(hù)作用[24]。曾紅雨等25首次證實(shí)何首烏苷能通過PTEN誘導(dǎo)激酶1(PTEN induced putative kinase 1,PINK1)/含亮氨酸拉鏈/EF手的跨膜蛋白1(leucine zipper/EF handcontainingtransmembraneprotein1,LETM1)通路降低PC12細(xì)胞中線粒體鈣超載,其對(duì)神經(jīng)元的保護(hù)作用呈劑量依賴性。三七總皂昔具有抗血小板聚集和提升腦血流量的作用,被廣泛用于心腦血管疾病治療[2。周玉嘉等[2在MCAO大鼠復(fù)流 2h 后通過尾靜脈注射三七總皂昔,發(fā)現(xiàn)早期干預(yù)可下調(diào)Toll樣受體(Toll-like receptors, TLRS)/NF- ??κB 信號(hào)通路,抑制核昔酸結(jié)合寡聚化結(jié)構(gòu)域樣受體蛋白3(NOD-likereceptorprotein3,NLRP3)炎性小體的形成,并減少白細(xì)胞介素-1β(interleukin- ?1β ,IL-1β)分泌,從而保護(hù)缺血再灌注腦組織。該結(jié)果強(qiáng)調(diào)了CIRI早期抗炎治療的重要性。此外,三七總皂昔、茯苓多糖、黃精多糖等中藥有效成分也被證明對(duì)CIRI有較好的療效。詳見表1。
表1中藥活性成分調(diào)控CIRI的作用機(jī)制

2.2 單味中藥
單味中藥在CIRI治療中同樣具有顯著效果。牛黃具有開竅清心、豁痰涼肝、息風(fēng)的作用,可用于CIRI急性期的治療。褚坦路等4發(fā)現(xiàn),牛黃可抑制大鼠腦組織小膠質(zhì)細(xì)胞中NLRP3的活化,并促進(jìn)其由M1型向M2型極化。通過構(gòu)建BV2細(xì)胞糖氧剝奪/再灌注模型進(jìn)一步證實(shí)牛黃可顯著降低NLRP3、凋亡相關(guān)斑點(diǎn)樣蛋白(apoptosis-associated speck-likeprotein containing a CARD,ASC)及Caspase-1的表達(dá),減少炎癥因子的分泌[40]。任粒宏等4在預(yù)防性灌胃牛黃溶液3d后構(gòu)建MCAO大鼠模型,首次發(fā)現(xiàn)牛黃通過調(diào)控PI3K/Akt信號(hào)通路升高血管內(nèi)皮生長(zhǎng)因子、血管生成素1水平促進(jìn)血管再生,并增強(qiáng)抗凋亡蛋白和相關(guān)mRNA的表達(dá)抑制凋亡。牛黃“炎癥-血管-凋亡\"三位一體的干預(yù)模式,恰與中醫(yī)\"急癥治標(biāo),痰瘀并祛\"的急癥治療思想相契合4。冰片能透過血腦屏障,對(duì)腦部疾病的治療具有顯著療效。蘆丹妮等43對(duì)比艾片、合成冰片和天然冰片3種冰片在CIRI急性期的治療效果,發(fā)現(xiàn)三者均可恢復(fù)神經(jīng)元數(shù)量,抑制小膠質(zhì)細(xì)胞活化,減輕炎性損傷,證實(shí)冰片具有調(diào)節(jié)神經(jīng)免疫微環(huán)境的多維保護(hù)作用。同時(shí),該研究注意到含冰片藥物可能有助于CIRI患者語(yǔ)言功能的恢復(fù),其中艾片的作用最為顯著,除抗炎外還可以改善運(yùn)動(dòng)、情緒及記憶功能。不同冰片的治療效果不同,提示同類藥材的精細(xì)化研究對(duì)臨床精準(zhǔn)用藥具有重要意義。此外,菊花、赤芍等中藥對(duì)CIRI也具有改善作用。詳見表2。
2.3 中藥復(fù)方及中成藥
中醫(yī)學(xué)認(rèn)為,中風(fēng)可由風(fēng)、火、痰、、虛五邪相互影響致病,病位涉及肝、腎、脾、腦等[48],如肝腎陰虛導(dǎo)致肝風(fēng)內(nèi)動(dòng),火熱上擾清竅;中焦脾胃失運(yùn)導(dǎo)致痰濕聚積。因此,治療CIRI主要以補(bǔ)肝腎、益精血、益氣活血、祛瘀化痰方藥為主4。中藥復(fù)方及中成藥治療CIRI的現(xiàn)代研究是傳統(tǒng)中醫(yī)藥理論與現(xiàn)代藥理學(xué)研究的結(jié)合,為CIRI的臨床治療提供了新視角。
左歸丸具有滋陰補(bǔ)腎、益精填髓的功效。研究表明,左歸丸能通過調(diào)節(jié)雌激素受體產(chǎn)生類雌激素樣作用,改善CIRI5。其作用機(jī)制可能與左歸丸通過內(nèi)質(zhì)網(wǎng)應(yīng)激(endoplasmic reticulum stress,ERs)/PI3K/Akt信號(hào)通路影響大鼠血清中丙二醛及炎癥因子TNF- ???α,IL-1β 的含量,提高谷胱甘肽過氧化物酶水平,從而減輕炎癥及氧化應(yīng)激反應(yīng)有關(guān)[51-52]。此外,左歸丸通過上調(diào)B 細(xì)胞淋巴瘤因子-2(B-cell lymphoma-2,Bcl-2),下調(diào)Cleaved-Caspase3、Bax表達(dá),降低腦梗死體積和細(xì)胞凋亡率。凋亡調(diào)控的協(xié)同效應(yīng)進(jìn)一步強(qiáng)化了其“補(bǔ)腎填髓\"功效的分子基礎(chǔ)。補(bǔ)陽(yáng)還五湯為益氣活血的代表方劑,由黃芪、當(dāng)歸、赤芍、地龍等多味中藥組成,臨床用于改善腦卒中后的顱內(nèi)水腫、腦組織炎癥及動(dòng)脈粥樣硬化斑塊[54]。糖昔是補(bǔ)陽(yáng)還五湯的藥效物質(zhì)基礎(chǔ),通過調(diào)節(jié)核因子E2相關(guān)因子2(nuclear factor erythroid 2-relatedfactor2,Nrf2)介導(dǎo)的抗氧化途徑抑制神經(jīng)元焦亡[55],Nrf2作為氧化還原平衡的核心調(diào)控因子能間接抑制NLRP3炎性小體,但該方是否直接十預(yù)炎癥-氧化應(yīng)激交互通路仍有待闡明。辛紫媛等5發(fā)現(xiàn),補(bǔ)陽(yáng)還五湯能有效改善CIRI大鼠的神經(jīng)功能損傷,縮小腦梗死面積,促進(jìn)神經(jīng)元形態(tài)恢復(fù),其機(jī)制與增強(qiáng)沉默信息調(diào)節(jié)蛋白1(silent information regulator1, SIRT1)表達(dá),降低NF- σ?κB IL-6及TNF- α?α∝ 水平有關(guān),表明補(bǔ)陽(yáng)還五湯的神經(jīng)保護(hù)作用可能通過調(diào)節(jié)SIRT1/NF- ??κB 信號(hào)通路實(shí)現(xiàn)。小續(xù)命湯記載于《備急千金要方·治諸風(fēng)方》,由麻黃、防己、人參等12味藥組成,具有解毒祛、化痰通絡(luò)的功效,在臨床上被廣泛應(yīng)用于中風(fēng)及其后遺癥。WANG等發(fā)現(xiàn),小續(xù)命湯預(yù)處理可改善MCAO大鼠神經(jīng)行為缺陷,逆轉(zhuǎn)神經(jīng)元損傷。進(jìn)一步構(gòu)建HT22細(xì)胞糖氧剝奪/再灌注模型發(fā)現(xiàn),其作用機(jī)制與上調(diào)神經(jīng)可塑性相關(guān)蛋白的表達(dá),抑制再灌注早期非受體型酪氨酸激酶2(Januskinase2,JAK2)/信號(hào)轉(zhuǎn)導(dǎo)及轉(zhuǎn)錄激活蛋白3(signal transducer and activator of transcription 3,STAT3)的磷酸化有關(guān)。丁慧敏等[發(fā)現(xiàn),小續(xù)命湯還可調(diào)控缺氧誘導(dǎo)因子-1α(hypoxia inducible fac-tor-1α,HIF- 1α )與Bcl-2/腺病毒E1B相互作用蛋白3(Bcl-2/adenovirus E1B 19kDa interacting protein3,BNIP3)通路,激活線粒體自噬,維持能量穩(wěn)態(tài)。通心絡(luò)膠囊由人參、水蛭、冰片等中藥組成,具有益氣活血、通絡(luò)止痛的功效。高志杰等[發(fā)現(xiàn),通心絡(luò)膠囊在給藥3d后對(duì)CIRI小鼠具有較好的治療作用,治療效果呈劑量依賴性。結(jié)合網(wǎng)絡(luò)藥理學(xué)發(fā)現(xiàn),通心絡(luò)膠囊可能通過調(diào)控Akt、多巴胺受體DRD2等靶點(diǎn)改善CIRI[59-60]。丹燈通腦軟膠囊則通過提高血管內(nèi)皮生長(zhǎng)因子(vascularendothelial growth fac-tor,VEGF)和HIF- ?1α 的表達(dá),降低血管抑制素和內(nèi)皮抑制素水平,促進(jìn)血管生成,改善CIRI]。此外,桃紅四物湯、溫陽(yáng)復(fù)元湯、腦心通膠囊等復(fù)方及中成藥也被證明對(duì)CIRI有較好的療效。詳見表3。

3結(jié)語(yǔ)與展望
CIRI致病因素復(fù)雜,嚴(yán)重影響患者生活質(zhì)量,其病理機(jī)制具有階段性和因果關(guān)聯(lián)性,多環(huán)節(jié)相互作用可加速病程進(jìn)展7。中藥多靶點(diǎn)、多途徑的作用特點(diǎn)恰能與CIRI機(jī)制的復(fù)雜性相對(duì)應(yīng)。當(dāng)前研究主要集中在中藥單體和復(fù)方的作用機(jī)制。單味藥中開竅類藥物(如冰片和牛黃)在急性期治療效果顯著。冰片具有良好的滲透性,能夠促進(jìn)藥物透過血腦屏障,提高藥效;牛黃則兼具清熱解毒、抗炎及神經(jīng)保護(hù)作用[41.71]。然而開竅類藥物易耗傷正氣,需通過配伍(如聯(lián)合益氣藥物)減少毒副作用,未來(lái)可進(jìn)一步探索開竅藥與不同藥物的配伍方案,優(yōu)化CIRI治療策略。部分藥物(如何首烏昔、小續(xù)命湯)表現(xiàn)出生物學(xué)效應(yīng)的雙面性:對(duì)線粒體自噬的調(diào)控既可發(fā)揮神經(jīng)保護(hù)作用,也可能因作用閾值差異產(chǎn)生潛在風(fēng)險(xiǎn)。這種特性提示,在研究中需注意中藥的量效關(guān)系,為臨床精準(zhǔn)用藥奠定基礎(chǔ)現(xiàn)階段研究主要采用基于西醫(yī)病理機(jī)制構(gòu)建的MCAO動(dòng)物模型,缺乏中醫(yī)分型和證候驗(yàn)證,難以體現(xiàn)辨證論治理念。未來(lái)應(yīng)結(jié)合中醫(yī)證候建立動(dòng)物模型,更好地探索中醫(yī)藥治療CIRI的優(yōu)勢(shì)和臨床應(yīng)用價(jià)值。機(jī)制研究方面,普遍關(guān)注藥物在氧化應(yīng)激和抗炎等CIRI早期病理環(huán)節(jié)發(fā)揮的作用,對(duì)晚期(神經(jīng)修復(fù))關(guān)注較少,采用長(zhǎng)期模型或有助于系統(tǒng)性探究CIRI全病程機(jī)制。部分實(shí)驗(yàn)采用提前給藥的干預(yù)方式,這種研究策略符合CIRI需預(yù)防和迅速干預(yù)的原則,也能較好地模擬藥物在早期發(fā)揮保護(hù)作用的過程,可用于高風(fēng)險(xiǎn)發(fā)病患者的預(yù)防性治療。同時(shí),應(yīng)進(jìn)一步研究更快速、更高效的給藥方式,減少發(fā)病后因時(shí)間延誤導(dǎo)致的神經(jīng)損傷加重。納米技術(shù)、靶向藥物遞送系統(tǒng)等新型技術(shù),可提升藥物的生物利用度,增強(qiáng)藥物在腦組織的作用效果,為中藥快速治療CIRI提供了新的思路。此外,也需進(jìn)一步優(yōu)化藥物篩選策略,尋找更具針對(duì)性、療效更優(yōu)的治療藥物。可以結(jié)合現(xiàn)代藥理學(xué)、分子生物學(xué)和計(jì)算機(jī)輔助藥物設(shè)計(jì)等方法,挖掘中藥有效成分,明確作用靶點(diǎn),探索其在CIRI治療中的應(yīng)用潛力。
表3中藥復(fù)方及中成藥調(diào)控CIRI的作用機(jī)制
Table 3The mechanism of action of Chinese medicine compounds and Chinese patent medicines in regulating CIRI

綜上所述,當(dāng)前中藥治療CIRI的研究雖取得了一定進(jìn)展,但仍存在諸多不足,如單味藥研究較少、動(dòng)物模型缺乏中醫(yī)辨證、給藥方式尚待優(yōu)化等。未來(lái)的研究應(yīng)注重藥物配伍的合理性及量效關(guān)系,探索更符合中醫(yī)理論的動(dòng)物模型,同時(shí)開發(fā)更快速的給藥方式,并結(jié)合現(xiàn)代技術(shù)手段優(yōu)化新藥的篩選與應(yīng)用,以期在CIRI的治療中實(shí)現(xiàn)更好的臨床效果。
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(本文編輯 周旦)
湖南中醫(yī)藥大學(xué)學(xué)報(bào)2025年6期