简介:Aim:Tostudypercutaneousabsorptionandmetabolismofketoprofenisopropylester(KPE)viaexcisednudemouse'sandmonkey'sskin.Methods:Excisedskinwaspreparedbysurgicalexcisionandenzymedigestion.Sideby-sidediffusioncellswereusedforinvitropermeationstudies.TheconcentrationsofKPEanditsmetaboliteinsampleswereassayedbyHPLC.Results:AllKPEpenetrationthroughwholethicknessskinandstrippedskinwasmetabolizedtoketoprofen(KP).theconcentrationofwhichinthereciiversolutionincreasedlinearlywithtime.Astothenudemouseskin.thesteady-statefluxofKPthroughwholethicknessskinwas2.5timesthatofKPEthroughthewhloethicknessskin,buttheKPandKPEremaininginthewholethicknessskinafterthefinishingofKPEpenetrationwas22.2timesincomperedwiththeKPremaininginthewholethicknessskinafterthefinshingofKPpenetration.TherateofformationofthesteadystateKPfromKPEthroughtdermiswassignificantlylowerthanthatofKPEthroughthewholethicknessskin.Inhemonkeyskin,therateofformationofthesteady-stateKPfromKPEthroughthewholethicknessskinwas0.7timesthatfromKPEthroughstrippedskin.TheKPandKPEremaininginthewholethicknessskinafterthefinishingofKPEpenetrationwas2.0timethatinthestrippedskinafterthefinishingofKPEpenetration.Therateoffornationofthesteady-stateKPfromKPEthroughdermiswaslowerthanthatfromKPEthroughthewholethicknessskinandthestrippedskin.theKPremainingindermisafterthefinsihingofKPEpenetrationwasalsosignificantlylowerthantheKPremaininginthewholethicknessskinandthestrippedskinafterthefinishingofKPEpenetration.Conclusion:KPestersareofbenefittoimporovethelocalactionofKP.andskinesterasemetabolismmainlydevelopsintheepidermis.
简介:目的探讨乙型肝炎病毒pre—S1Ag、pre—S2Ag、HBV—DNA、HBV—M的相关性及其临床意义。方法HBV—DNA采用荧光定量PCR法;HBV—M及pre—S1Ag、pre—S2Ag采用ELISA法,检测96例HBV—DNA阳性感染者血清中pre-S1Ag、pre—S2Ag、HBV—M,同时以30例HBV—M全阴性的健康体检者血清作为对照,并对结果进行统计学分析。结果96例HBV—DNA阳性患者中HBsAg、HBeAg、HBcAb阳性检出率为64.6%;HBsAg、HBeAb、HBcAb阳性检出率为20.8%;HBsAg、HBcAb阳性栓出率为14.6%;pre—S1Ag在96例HBV—DNA阳性标本中检出率为70.8%;pre—S2Ag检出率为79.2%;均明显高于HBeAg的阳性率64.6%,30例对照中未检测出pre—S1Ag、pre—S2Ag及HBV—DNA。结论HBeAg、HBV—DNA、pre—S1Ag、pre—S2Ag之间具有一定的关联性。pre—S1Ag和pre—S2Ag均较HBeAg敏感。pre—S1Ag与pre—S2Ag的栓出率差异无显著性,ELISA检测HBV—M、pre—S2Ag及pre—S1Ag只是表型指标,只能提供HBV感染的间接证据。而HBV—DNA的检测是HBV感染与否的直接证据。HBV—M、pre—S1Ag、pre—S2Ag、HBV—DNA的检测各自有其独特的临床意义。应用pre—S1Ag、pre—S2Ag、HBV—DNA及HBV—M进行联合检测,对HBV感染的早期诊断,了解HBV复制、转归及监测疗效和预后有重要的意义。
简介:Pyrimidinederivativeshavebeenreportedasneuroprotectiveagentsusefulforthetreatmentofvariousneurodegenerativedisorders.Inthepresentstudy,severalpyrimidineanalogueshavebeenevaluatedasneuroprotectiveagentsinMorriswatermazemodel.Itwasobservedthatpyrimidinederivatives8–17considerablyimprovelearning,memory,andmovementdeficitsinanimalmodels.Biochemicalestimationsofbrainserumoftreatedanimalsrevealedsuppressionofoxidativeandnitrosativestress,acetylcholinesteraseactivity,andotherparameterswhichleadstoneurodegenerationofbrain.Ofallthepyrimidinederivatives,thiomorpholinederivative8andpiperazineethanolderivative17werefoundtobethemostactiveneuroprotectiveagentsandproducedeffectscomparabletostandarddrugrivastigmineintermsofbehavioral,biochemical,andmolecularaspects.
简介:目的探讨乳腺癌治疗方案的全程合理有效实施方法.方法收集沈阳军区总医院2008年1月-2013年5月收治的乳腺癌中接受四线及四线以上内科解救治疗56例(多线组),同时随机抽取同时期接受一线解救治疗的56例为一线组,回顾性分析两组的临床资料.结果多线组与一线组比较,≥60岁、单纯化疗、化疗联合靶向治疗、淋巴结转移数、病理分级程度方面,差异均有统计学意义(P<0.05).多线组在疾病自然进展、随意更换方案、擅自减少剂量方面,明显高于一线组(P<0.05).结论对一般状况较好、预期生存较长,能从多种治疗方案中获益的乳腺癌患者,应该尽量高效、合理、有序的实施数量有限的治疗方案.
简介:目的评估A型肉毒毒素治疗Meige’s综合征的疗效。方法对A型肉毒毒素治疗的30例Meige’s综合征患者资料进行回顾性分析。结果30例Meiges’s综合征患者注射A型肉毒毒素后25例完全缓解,5例明显缓解,总有效率100%。起效时间注射当天~第3天。疗效维持平均为5个月。重复治疗有效。局部不良反应轻微、短暂、可逆,无全身不良反应及过敏反应。结论A型肉毒毒素局部注射是治疗Meige’s综合征的一种安全、有效、简便、易行的方法。
简介:AIM:ToexaminetheprotectiveeffectsofGinkgobilobaextract(GbE)onthelearningandmemoryintheAlzheimerdisease(AD)modelinducedbyaluminumsaltinrats,andtoexaminethepotentialmechanisms.METHODS.TheADmodelofratswasinducedbyadministrationanddrinkingofaluminumchloridesolution.Theabilitiesofspatialleafingand