简介:目的研究bcl-2/IgH基因重排与微卫星DNA改变在B细胞淋巴瘤发生发展中的作用以及bcl-2/IgH基因重排与微卫星不稳定和杂合性缺失之间的关系.方法应用巢式PCR方法检测bcl-2/IgH基因重排;选取14号染色体上2个微卫星多态性标记,采用聚合酶链反应-单链构象多态性分析法(PCR-SSCP)检测37例B细胞淋巴瘤中微卫星不稳定和杂合性缺失.结果37例B细胞淋巴瘤中,bcl-2/IgH基因重排频率为24.3%(9/37);微卫星不稳定发生率为48.6%(18/37),杂合性缺失发生率为40.5%(15/37),其中D14S65位点微卫星不稳定和杂合性缺失频率较高,分别为29.7%(11/37)和27%(10/37).经统计学分析结果显示:D14S65位点bcl-2/IgH基因重排与微卫星不稳定有关(P<0.05),与杂合性缺失无关(P>0.05);但D14S45位点bcl-2/IgH基因重排与微卫星不稳定和杂合性缺失无关(P>0.05).结论D14S65是B细胞淋巴瘤中敏感的检测位点,bcl-2/IgH基因重排和微卫星不稳定性可能共同导致B细胞淋巴瘤的发生.
简介:AIM:Toevaluatetheepidemiologic,anatomic,andclinicalfeaturesofopenglobeinjuriesinchildren.METHODS:Themedicalfilesofpatientsundertheageof16whohadbeenoperatedforanopenglobeinjuryatAkdenizUniversityHospital’sDepartmentofOphthalmologywereretrospectivelyevaluated.RESULTS:Atotalof90patientswereevaluatedinthisstudy.Amongthesepatients,26(28.9%)werefemaleand64(71.1%)weremale.Themeanageofthepatientswas7.7±4.2years.Themale/femaleratiowasobservedtoincreasewithincreasingage(P=0.006,P=7.48).Injuriesweremostlikelytooccurinspringandautumn(P=0.028).Thetimeintervalbetweentheinjuryandthesurgicalrepairwas9.36±27.4h.Forty(44.4%)oftheinjuriesoccurredinthehome,27(30%)occurredintheyard,and21(23.3%)happenedwhileplayinginthestreet.Themostcommoncausesofinjuryweresharpmetalobjects(P<0.001).Injurytothecorneaoccurredin47(52.2%)ofthepatients(P<0.001).Themostcommoncomplicationtooccurwascataractformation.Additionaloperationswerenecessaryfor37(41.1%)ofthepatients.Thefinalvisualacuitywascorrelatedwithboththeinitialvisualacuityofthewoundedeyepriortosurgeryandthelengthofthewound(P<0.001,r=0.502andP<0.001,r=-0.442,respectively).CONCLUSION:Openglobeinjuriesthataresufferedinchildhoodgenerallyoccureitherathome,intheyard,oronthestreet,withsharpmetalobjectsbeingthemostcommoncauseofinjury.Theinitialvisualacuityandthelengthofthewoundarethemostimportantdeterminantsofthefinalvisualacuity.