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《《肠癌患者与健康人群肠道菌群基因组DNA鉴定与特征》.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第16卷第4期北华大学学报(自然科学版)V0I.16No.42015年8月JOURNALOFBEIHUAUNIVERSITY(NaturalScience)Aug.2015文章编号:1009—4822(2015)04—0462—03DOI:10.11713/j.issn.1009—4822.2015.04.010肠癌患者与健康人群肠道茵群基因组DNA鉴定与特征李钰,王璐,李明成。(1.北华大学附属医院,吉林吉林132011;2.北华大学医学检验学院,吉林吉林132013)摘要:目的探讨肠道肿瘤患者与健康人群肠道菌群构成及基因组DNA的变化特征.方法分别采集肠癌患者与健康人晨起粪便,进行需氧
2、和厌氧培养,鉴定菌株并进行菌落计数.采用试剂盒法提取粪便中肠道细菌总基因组DNA,进行琼脂糖凝胶电泳.结果肠癌组与健康对照组比较,肠杆菌数量增多,以大肠埃希菌数量显著,乳酸杆菌和双歧杆菌明显减少,厌氧菌和需氧菌的数量比例颠倒,两组数据比较差异均具有统计学意义(P<0.05).粪便总基因组DNA经琼脂糖凝胶电泳在23130bp处有清晰、明亮的单一条带,且肠癌组与健康对照组均有相同大小的条带.结论肠癌组与健康对照组肠道菌群组成存在差异,肠道菌群总基因组DNA没有变化.关键词:肠癌;肠道菌群;基因组DNA中图分类号:R735文献标志码:A【引用格式】李钰,王璐,李明成.肠癌患者与健康人群肠道菌群
3、基因组DNA鉴定与特征[J].北华大学学报(自然科学版),2015,16(4):462—464.Characterizati0nandIdentificationofEntericFloraandGenomicDNAbetweenPatientswithColorectalCancerandHealthyPersonLiYu,WangLu,LiMingcheng(1.AffiliatedHospitalofBeihuaUniversity,Jilin132011,China;2.SchoolofLaboratoryMedicineofBeihuaUniversity,Jilin132013
4、,China)Abstract:ObjeetiveToexploredifferencesinthecompositionofintestinalflorabetweenthecolorectalcancerpatientsandthehealthygroupinordertofindanalternativemethodfortheearlyprognosisofcolorectalcancer.MethodEarlymorningstoolofthecancerpatientsandthehealthypeoplewerecollected.Aerobicandanaerobiccul
5、tureswerecarriedout.thestrainswereidentified,andthebacterialcolonieswerecount.BacterialgenomicDNAinfeceswasextracedfromthecolorectalcancerandthehealthygroup,respectively,andunderwentagarosegelelectrophoresis.ResultsComparedthecancergroupwiththecontrolgroup,theamountofE.coliincreasedsignificantly,t
6、heamountoflactobacillusandbifidobacteriumreducedsignificantly,andtheproportionalquantityofanaerobicbacteriaandaerobicbacteriareversed.A1lthedatumshowedstatisticallysignificant(P<0.05).Therewasaclearandbrightsinglebandat23130bpontheagarosegelelectrophoresis.ConclusionThereweredifferencesinintestina
7、lfloracompositionbetweenthecancerpatientsandthehealthycontrolgroup,buttheirtotalgenomicDNAwasthesame.Keywords:coloncancer:intestinalbacteria:genomicDNA收稿日期:2015—02—09基金项目:吉林省卫生厅科研基金项目(20112108).作者简介:李钰(1974-),女,硕
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