简介:ObjectiveTodetectthecellviabilityandtheexpressionsofstemcellsurfacemarkersafterchemotherapeuticdrugtreatment.MethodsWeobservedthecytotoxiceffectsofthreechemotherapeuticagents[epirubicin(Epi),fluorouracil(5-FU)andcyclophosphamide(Cyc)]inthreecelllines,andthecellviabilitiesafterremovedthesechemotherapeuticagents.ExpressionsofstemcellsurfacemarkersCD44,CD24,CD90,CD14andaldehydedehydrogenase1(ALDH1)inbreastcancercellswereanalyzedbyreal-timePCR.Theposthocanalysis(Tukey’stests)inconjunctionwithone-wayANOVAwasusedforstatisticalanalysis.ResultsTheinitialcytotoxicefficacywasmostnotable.Afterthetreatmentofthesametherapeuticagents,cellviabilitywasdecreasedby64.8%35.14%,32.25%inBT-483cells,66.4%,22.94%and45.88%inMDA-MB-231cells,97.1%,99.5%and76.4%inMCFcells.Thedifferencewassignificantcomparedwiththatbeforetreatment(P=0.000).However,theinhibitoryeffectswerediminishedafterchemotherapeuticagentwithdrawal.Cellviabilitieswereincreasedto167.9%,212.04%and188.66%inMDA-MB-231cellsat48hafterwithdrawal.At72hafterwithdrawal,cellviabilitywasincreasedwithasignificantdifferenceinthreecelllines(allPvalues=0.000).ExpressionsofCD44andALDH1weremostprevalentforMDA-MB-231,BT-483andMCF-7cells.ALDH1mRNAlevelwassignificanthigherinBT-483(HER-2overexpressioncellline)thanMDA-MB-231(triplenegativecellline)(P=0.012).CD14mRNAlevelinMCF-7cellsweresignificantlylowerthanthatinMDA-MB-231andBT-483(P=0.003,0.001).BT-483showedsignificantlyhigherlevelofCD44thanMDA-MB-231andMCF-7cellline(P=0.013,0.020),andnosignificantdifferencewasdetectedbetweenMDA-MB-231andMCF-7breastcancercells(P=0.955).CD90mRNAexpressionsweredetectedinMDA-MB-231cellsandMCF-7cells,butnotinBT-483cells.ConclusionSomemalignantcellscouldsurviveinvitroandbegintoproliferateagainbetweencyclesofchemotherapy.
简介:目的:探讨孕妇学校开展健康教育活动的内容,及其对孕妇在孕期、产时、母乳喂养及促进产科满意度等产科建设中的作用。方法:随机抽取2011-2012年在我院住院分娩的产妇1792例,其中参加过孕妇学校培训的892例为实验组,未参加培训的900例为对照组,比较两组剖宫产率(P〈0.05)、经阴道分娩率、产程时间、母乳分泌时间以及产科满意度。结果:实验组剖宫产率显著降低,第一产程、第二产程及总产程较对照组显著缩短(P〈0.05),初乳分泌时间较对照组显著提前(P〈0.05),产科满意度明显提升。结论:孕妇学校开展的健康教育活动增加了医院优质服务内涵,能够提高自然分娩率、降低剖宫产率、减少围产期并发症的发生,提高母乳喂养成功率,提高产后生活质量,提升了产科社会满意度。