简介:〔摘要〕初中历史是初中整体教学的重要组成部分,是培养学生综合素质的基础,教师应当给予这门课程足够的重视,并积极采用科学有效的教学方法,努力提升历史教学水平。本文探讨了如何激活初中历史课堂教学。
简介:摘要《九年制义务教育新课程》指出,初中语文教学要依据新课标的情感目标,尝试新教学手段,指导学生自主学习,从而提高学生的基本语文素养。
简介:目的探讨白花蛇舌草注射液(HDI)对口腔舌鳞癌TCA8113细胞增殖及RAS/RAF通路信号传导的影响。方法本研究于2013年3月在佳木斯大学口腔医学实验中心进行。使用四甲基偶氮唑蓝(MTT)方法测定不同浓度HDI对舌鳞癌TCA8113作用后的存活率情况,并用使用免疫蛋白印迹(Westernblot)方法检测RAS/RAF信号通路关键蛋白RAS、RAF的表达和变化。结果HDI干预舌鳞癌TCA8113细胞后,MTT显示HDl可明显抑制其细胞增殖,具有浓度依赖(P〈0.05)。当HDI浓度为30%时,抑制率为94.7%。RAS/RAF信号通路关键蛋白RAS、RAF的表达呈浓度依赖性下调。结论HDI可抑制舌鳞癌细胞TCA8113细胞增殖及抑制RAS/RAF通路信号传导,发挥抗肿瘤作用。
简介:Prostatecancergene3(PCA3,alsoknownasDD3)isanewbiomarkerthatcouldimprovetheaccuracyofprostatecancerdiagnosis.Itisagreatbiomarkerwithfairlyhighspecificityandsensitivity.Theincidenceofprostatecancerisrisingsteadilyinmostcountries.Thecommonlyusedprostate-specificantigen(PSA)testoncegavepeoplehopeforearlydiagnosisofprostatecancer.However,thelowspecificityofthePSAtesthasresultedinalargenumberofunnecessarybiopsiesandovertreatment.Duringthepastdecade,manynewprostatecancerbiomarkershavebeenfound.Amongthese,PCA3isthemostpromising.Duetoitsgreatperformanceindistinguishingprostatecancerfromotherprostateconditions,PCA3couldlikelybeappliedforearlydiagnosisofprostatecancer,patientfollow-up,prognosisprediction,andtargetedtherapy.Afteryearsofresearch,wehaveobtainedsomeknowledgeaboutthesequenceofPCA3gene.WehavealsodeterminedtherelationshipbetweenPCA3andtheproliferationofprostatecancercellsandlearnedsomeinformationabouthowPCA3affectstumor-relatedgenesandproteins.APCA3scorehasbeencreated,andithasbeenusedinavarietyofstudies.SomeresearchershaveevenappliedPCA3totargetedtherapyandobtainedagoodeffectinvitro.Thisreviewdescribesthecurrentstateofresearch,andexploresthefutureprospectsforPCA3.更多还原