简介:目的观察活血素(Vasobral;二氢麦角隐亭)口服液治疗前庭性眩晕患者的疗效及毒副反应。方法采用双盲随机法对318例16-74岁的前庭性眩晕患者分为活血素口服液(A组,下同)、利多卡因静脉滴注(B组,下同)、两药联合应用(C组,下同)3组进行治疗,并予疗效观察。结果治疗结果显示,A组的总有效率为89.1%,B组的总有效率为68.9%,C组的总有效率为92.2%,经统计学Ridit检验A组、C组较B组有非常显著差异(p<0.01),而A、C组间无显著差异(P>0.05)。结论临床观察表明,活轿素口服液治疗前庭性眩晕较之利多卡因静脉滴注有显著差异(P<0.01);两药联用虽无显著意义(P>0.05),但有增强疗效,并可减少活血素治疗的毒副作用。
简介:目的:观察链脲佐菌素(STZ)诱发糖尿病大鼠在造模后血-视网膜屏障(blood—retinabarrier,BRB)变化情况,并以阳性药为对照研究中药芪灯明目胶囊对STZ诱发糖尿病大鼠的视网膜血管渗漏影响。方法:采用STZ腹腔注射制作糖尿病大鼠模型,在造模后6too内各时点(2wk;1,2,3,4,5,6mo)采用伊文思蓝灌注示踪显示血一视网膜的渗漏情况,在造模后3too开始用中药芪灯明目胶囊(低中高剂量组分别给予125,250,500mg/kg体质量剂量的胶囊内容物灌胃),对照组用安多明胶囊(200mg/kg体质量剂量,相当于10倍成人剂量),灌胃3mo,观察药物对BRB的影响。结果:STZ糖尿病大鼠在2wk即可出现BRB的损害,并随着高血糖状态的持续而不断加重。对造模3tooSTZ糖尿病模型大鼠连续灌胃中药芪灯治疗3mo,结果提示:中药芪灯对STZ糖尿病BRB有保护作用,可明显减少视网膜血管的渗漏。结论:STZ糖尿病模型大鼠在早期即可出现BRB损害,并随着高血糖的持续而加重,中药芪灯明目胶囊可减少高血糖导致的BRB损害。
简介:AIM:ToexploretheinhibitoryeffectofasustainedcyclosporinA(CsA)deliverymicrosphere(CsA-MS)onposteriorcapsularopacification(PCO)inrabbiteyesaftercataractextraction.·METHODS:TwentyNewZealandwhiterabbitsacceptedcataractextractionplusintraocularlensimplantationandtheirlefteyeswereintraoperativelyinjectedCsA-MSpreparedusingpolymerpolylactioglycolicacid(PLGA)asacarrierandtheirrighteyeswereinjectedwithemptyMS.Thechangesincornea,anteriorchamberreaction,intraocularpressure,PCOandCsAconcentrationinaqueoushumorwereexaminedpostoperativelyandalltheeyeswereenucleated3monthsaftersurgeryforhistopathologicalandmorphologicalexaminationwithlightmicroscopyandelectronmicroscopy.·RESULTS:Conjunctivalhyperemia,cornealedema,intraocularpressureandanteriorchamberresponseofexperimentalandcontroleyesweresimilar,whilePCOinCsAMSinjectedeyeswasgreatlyimprovedcomparedwiththatincontroleyes.PosteriorcapsulesinCsA-MSinjectedeyesweresmoothandlensepithelialcells(LEC)didnotproliferatesignificantly(P>0.05),whileLECinposteriorcapsuleofcontroleyeshaddifferentdegreesofproliferationandcorticalregeneration.LECinCsA-MSinjectedeyeswerenotfunctionallyactiveandunderwentapoptosis,whereasLECincontroleyeswerefunctionallyactive(F-test,P=0.025).Inaddition,thecornealultrastructureshowednodifferencesbetweenCsA-MSandMSinjectedeyes.CONCLUSION:CsA-MShashighbioavailabilityinrabbiteyesandcouldinhibitpostoperativePCOoccurrenceanddevelopmentduringthestudyperiod,suggestingthatCsA-MSmaybeapromising,effectiveandsafeadministrationroutetopreventPCOinclinic.