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1、時珍國醫(yī)國藥2014年第25卷第9期LISHIZHENMEDICINEANDMATERIAMEDICARESEARCH2014VOL.25NO.9貝母辛對內(nèi)毒素誘導(dǎo)小鼠急性肺損傷保護作用的研究崔艷茹,劉海云,屈飛(1.江西中醫(yī)藥大學(xué)基礎(chǔ)醫(yī)學(xué)院,江西南昌330004;2.江西中醫(yī)藥大學(xué)藥學(xué)院,江西南昌330004)摘要:目的初步探討貝母辛對內(nèi)毒素誘導(dǎo)小鼠急性肺損傷(acutelunginjury,ALI)保護作用及其可能機制。方法用乙醚麻醉小鼠,經(jīng)鼻腔滴注脂多糖(1ipop01ysaccharide,LPS)(1mg/5mlPBS,每只501),構(gòu)建小鼠急性肺損傷模型
2、。將小鼠隨機分為對照組、LPS組和貝母辛+LPS組。觀察各組小鼠血清LDH、MDA含量,肺組織病理學(xué)改變,肺泡灌洗液上清總蛋白、白細胞計數(shù)及其分類計數(shù)。結(jié)果LPS處理小鼠可明顯上調(diào)血清LDH、MDA表達(P<0.01);LPS組肺組織病理學(xué)顯示:氣道上皮脫落,氣道內(nèi)有粘液分泌,肺泡結(jié)構(gòu)呈實變,有大量炎癥細胞滲出;LPS組肺泡灌洗液上清總蛋白、白細胞計數(shù)明顯高于正常對照組(P<0.01)。貝母辛組均可有效降低急性肺損傷小鼠血清的LDH、MDA的表達(具有劑量依賴性),高劑量貝母辛組可明顯減輕LPS所致肺組織病理學(xué)變化,減少粘液分泌;降低肺泡灌洗液中總蛋白、白細胞總數(shù)及
3、淋巴細胞和中性粒細胞分類計數(shù)。結(jié)論貝母辛可減輕LPS所致急性肺組織損傷。關(guān)鍵詞:貝母辛;急性肺損傷;內(nèi)毒素;保護作用D0I標(biāo)識:doi:10.3969/i.issn.1008-0805.2014.09.029中圖分類號:R285.5文獻標(biāo)識碼:A文章編號:1008-0805(2014)09-2118-03Peimisineattenuatesacutelunginjuryinducedbylip0polysaccharideinmiceCUIYan—ru,LIUHai—yun,QUFei[1.Departmentofiology,JiangxiUniversityo
4、fTraditionalChineseMedicine(TCM),Nanchang330004,China;2.DepartmentofPharmacology,JiangxiUniversityofTCM,Nanchang330004,China]Abstract:0bjectiveTodeterminetheprotectiveeffectofPeimisineonacutelunginjury(ALI)inducedbylipopolysaccharide(LPS)anditsprotectivemechanismmice.MethodsThemicewere
5、randomlyallocatedintosham,LPSandPeimisine+LPSgroups.TheALImicewasinducedbyLPSafteretherization.ThePeimisinewasinjectedbybellycavity30minutespriortotheLPSehMlenge,onetime/d,3timestotally.Themicewerekilled24hafterthethirdPeimisineinjectiontoobservetheamountofLDH,MDAinplasma,thelungtissue
6、pathology,thetotalprotein,whitebloodcellanddifferentialcountinthebronchoalveolarlay—agefluid(BALF).ResultsLDH,MDAamountinplasma,Lungtissue,andBALFshowedseriousinflammatorychangesintheLPSgroup.ComparedwiththeLPSgroup,PeimisineattenuatesLungtissueinjury,LDHandMDAamountinALImiceinadosedep
7、endentmanner.Peimisine(0.12mg)loweredthetotalprotein,totalwhitebloodcells,lymphocyteandneutrophilicleukocyteinBALFcomparedwiththeLPSgroup.ConclusionPeimisinecanplayaprotectiveroleagainstLPS—inducedacutelunginjury.Keywords:Peimisine;Acutelunginjury;Lip0polysaccharide;Protectiveeffect急