医学综述
醫學綜述
의학종술
Medical Recapitulate
2015年
21期
3969-3971
,共3页
结直肠肿瘤%粪便DNA%聚合酶链反应-单链构象多态性%腺瘤多发性息肉病基因%p53%K-ras
結直腸腫瘤%糞便DNA%聚閤酶鏈反應-單鏈構象多態性%腺瘤多髮性息肉病基因%p53%K-ras
결직장종류%분편DNA%취합매련반응-단련구상다태성%선류다발성식육병기인%p53%K-ras
Colorectal neoplasm%Stool DNA%Ploymerase chain reaction-single-strand conformational polymorphism%Adenomatous polyposis%p53%K-ras
目的:采用聚合酶链反应-单链构象多态性( PCR-SSCP)银染法检测腺瘤多发性息肉病( APC)、p53、K-ras三个基因在结直肠肿瘤筛查中的敏感性和特异性。方法选择2011年11月至2012年8月惠州市第一人民医院消化门诊收治的14例结直肠癌( CRC 组),60例结直肠腺瘤( CRA组),30例正常组粪便标本,提取DNA,PCR-SSCP银染法检测基因突变。结果 APC、p53、K-ras三个基因联合检测在CRC组、CRA 组、正常组突变率分别为57.1%(8/14)、30.0%(18/60)、3.3%(1/30);在结直肠肿瘤的灵敏度和特异度分别为35.1%(26/74)、96.7%(29/30),粪便 DNA 联合检测CRC组、CRA组的检出率高于正常组(均P<0.05)。结论粪便DNA联合检测在无创性筛查结直肠肿瘤中具有可行性,可能是一种适合于结直肠肿瘤筛查的无创性方法和筛查模式。
目的:採用聚閤酶鏈反應-單鏈構象多態性( PCR-SSCP)銀染法檢測腺瘤多髮性息肉病( APC)、p53、K-ras三箇基因在結直腸腫瘤篩查中的敏感性和特異性。方法選擇2011年11月至2012年8月惠州市第一人民醫院消化門診收治的14例結直腸癌( CRC 組),60例結直腸腺瘤( CRA組),30例正常組糞便標本,提取DNA,PCR-SSCP銀染法檢測基因突變。結果 APC、p53、K-ras三箇基因聯閤檢測在CRC組、CRA 組、正常組突變率分彆為57.1%(8/14)、30.0%(18/60)、3.3%(1/30);在結直腸腫瘤的靈敏度和特異度分彆為35.1%(26/74)、96.7%(29/30),糞便 DNA 聯閤檢測CRC組、CRA組的檢齣率高于正常組(均P<0.05)。結論糞便DNA聯閤檢測在無創性篩查結直腸腫瘤中具有可行性,可能是一種適閤于結直腸腫瘤篩查的無創性方法和篩查模式。
목적:채용취합매련반응-단련구상다태성( PCR-SSCP)은염법검측선류다발성식육병( APC)、p53、K-ras삼개기인재결직장종류사사중적민감성화특이성。방법선택2011년11월지2012년8월혜주시제일인민의원소화문진수치적14례결직장암( CRC 조),60례결직장선류( CRA조),30례정상조분편표본,제취DNA,PCR-SSCP은염법검측기인돌변。결과 APC、p53、K-ras삼개기인연합검측재CRC조、CRA 조、정상조돌변솔분별위57.1%(8/14)、30.0%(18/60)、3.3%(1/30);재결직장종류적령민도화특이도분별위35.1%(26/74)、96.7%(29/30),분편 DNA 연합검측CRC조、CRA조적검출솔고우정상조(균P<0.05)。결론분편DNA연합검측재무창성사사결직장종류중구유가행성,가능시일충괄합우결직장종류사사적무창성방법화사사모식。
Objective To detect the sensitivity and specificity of gene adenomatous polyposis ( APC) , p53,K-ras genetic mutations in colorectal neoplasm using the ploymerase chain reaction-single-strand confor-mational polymorphism(PCR-SSCP) silver staining.Methods Samples were enrolled from individuals who came to Huizhou First People′s Hospital Gastroenterology Clinic from Nov .2011 to Aug.2012:14 cases of colorectal cancer(CRC group),60 cases of colorectal adenomas(CRA group),30 cases of normal stool speci-mens,DNA was extrated,PCR-SSCP silver staining was used to detect genetic mutations.Results The mutation rates of three genes APC,p53,K-ras detection in CRC,CRA and normal group were 57.1%(8/14),30.0%(18/60) and 3.3%(1/30) respectively.The sensitivity and specificity of three genes detection colorectal neoplasm were 35.1%( 26/74 ) and 96.7%( 29/30 ) .The detection rate of three genes in CRC and CRA group were significantly higher than normal group(all P<0.05).Conclusion Stool DNA detec-tion is a feasibile non-invasive method for screening colorectal neoplasm ,which might be a suitable non-inva-sive method for screening colorectal neoplasia .