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ID:74439552
大小:22.33 KB
页数:9页
时间:2022-06-20
《水蛭对热刺激后血管壁论文》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、水蛭对热刺激后血管壁论文【摘要目的探索水蛭对热刺激后动脉管壁增厚的干预效果。方法使用局部热刺激兔耳,温度为(43±0.5)℃,每次3h,天天1次,共做3次。模型组分别于造模后1周、2周、4周时取材;水蛭组实验前3天及实验后一直用水蛭灌胃,0.3g/(kg·d),分别于造模后1周、2周及4周时取材。采用光学显微镜及图像分析仪进行形态学观察。结果模型组热刺激后动脉中膜成分增殖并突入血管腔内,造成管腔变狭。造模处平滑肌细胞层数及中膜厚度增加。水蛭组和模型组相比,增殖程度减小,各项观测指标均有不同程度的变化,但统计学分析差异无显著性。结论0.3g/(kg·d)剂量的水蛭对热刺激后血管壁增厚
2、的干预效果不理想。第9页共9页【动脉;狭窄;水蛭;形态学【AbstractObjectiveThisstudywasdesignedtobuildanewexperimentalmodelofproliferationofarterialsmoothmusclecells(SMC).MethodsThecentralarteryoftherabbitearwasheatedby(43±0.5)℃for3hoursaday,andforthreedays.Weexaminedthemorphologicalchangesofthearterialsbylightmicroscopya
3、nddigitalplanimetry,3days,1week,2weeks,and4weeksafterexperiment.Hirudopowderwasadministered3daysbeforeheating,andrabbitswereexamined4weeksafterexperiment.ResultsAstheincreasingofthetime,theproliferationofSMCincreasedandextendedtothelumineoftheartery,buttheinternalelasticmembranewasnotdisrupted
4、.So,theluminastenosisoccuerd.HirudopowdercausedtheproliferationofSMCtodecrease.Althoughtheluminabecomesmaller,theeffectisnotsignificant.ConclusionFromtheresearchresultsabove,wecandrawtheconclusionthatheatcaninducearterialSMCtoproliferate,andthendecreasetheareaofthearterylumina.Themodelisavaila
5、ble.HeatcanactivateautocrinegrowthofthelocalSMC,andalterthestructuresandfunctionofvascularwall.originatedfromthehost.HirudopowderhasaslighteffectondecreacingSMCproliferaton,becauseitmaynotplayapartintherelaventmechanismofheat.【Keywordsartery;stenosis;Hirudopowder;morphology水蛭是应用已久的活血祛瘀类药物,味咸苦,
6、性平、有小毒,归肝经。其主要功效为破血逐瘀。临床广泛应用于心脑血栓性疾病及瘀血经闭的治疗中,亦可用于治疗生殖系统疾病如精不液化等。本实验探究水蛭对家兔热刺激后血管壁增厚的干预功能,现报告如下。1实验材料第9页共9页1.1实验动物中国家兔48只,体重1.8~2.2kg,雄性,由湖南中医学院实验动物中心提
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