|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 2型糖尿病患者mtDNA变异筛查研究显示文摘目的探讨线粒体基因突变与2型糖尿病的关系。方法随机筛查222例散发2型糖尿病患者和191名正常对照,以聚合酶链反应、限制性内切酶片段长度多态性及T-A克隆测序和变性高效液相色谱分析技术验证等方法检测线粒体基因突变。结果糖尿病组线粒体基因(3153—3551nt)突变总的发生率(24.32%)明显高于正常组(7.33%)(P〈0.05);发现3个尚未见报道的新突变位点:A3209T、T3253G和A3467C,而C3497T则在糖尿病中是首次报道;起病年龄、体重指数、空腹血糖、糖化血红蛋白、高密度脂蛋白和糖尿病肾病等指标是线粒体基因突变的相关因素(P〈0.05)。结论温州地区糖尿病患者存在多种线粒体基因点突变,其在糖尿病的发生发展中起重要作用。 | 季敬璋 吕建新 叶薇 胡昕 汪大望 | 2007 | 中华医学遗传学杂志2007，24，2： | 6 |
| 2 | Mitochondrial DNA Mutations Associated with Aminoglycoside Ototoxicity显示文摘The mitochondrial 12S rRNA has been shown to be the hot spot for mutations associated with both aminoglycoside-induced and non-syndromic hearing loss. Of all the mutations, the homoplasmic A1555G and C1494T mutations at a highly conserved decoding region in the 12S rRNA have been associated with aminoglycoside-induced and non-syndromic hearing loss in many families worldwide. The A1555G or C1494T mutation is expected to form novel 1494C-G1555 or 1494U-A1555 base-pair at the highly conserved A-site of 12S rRNA. These transitions make the secondary structure of this RNA more closely resemble the corresponding region of bacterial 16S rRNA. Thus, the new U-A or G-C pair in 12S rRNA created by the C1494T or A1555G transition facilitates the binding of aminoglycosides, thereby accounting for the fact that the exposure to aminoglycosides can induce or worsen hearing loss in individuals carrying these mutations. Furthermore, the growth defect and impairment of mitochondrial translation were observed in cell lines carrying the A1555G or C1494T mutation in the presence of high concentration of aminoglycosides. In addition, nuclear modifier genes and mitochondrial haplotypes modulate the phenotypic manifestation of the A1555G and C1494T mutations. These observations provide the direct genetic and biochemical evidences that the A1555G or C1494T mutation is a pathogenic mtDNA mutation associated with aminoglycoside-induced and nonsyndromic hearing loss. Therefore, these data have been providing valuable information and technology to predict which individuals are at risk for ototoxicity, to improve the safety of aminoglycoside antibiotic therapy, and eventually to decrease the incidence of deafness. | GUAN Min-Xin Division of Human Genetics and Center for Hearing and Deafness Research, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio 45229, USA Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio 45229, USA | 2006 | Journal of Otology2006，1，2： | 3 |
| 3 | 氨基糖苷类抗生素导致mtDNA A1555G和mtDNA A7445G突变的相关遗传药理分析显示文摘 | 林有辉 陈国郝 | 2008 | 中华临床医师杂志(电子版)2008，2，5： | 2 |
| 4 | 口腔拭子在药物性耳聋基因检测中的应用显示文摘目的:探讨口腔黏膜上皮细胞基因组DNA在药物性耳聋基因A1555G及C1494T突变检测中的应用,寻求基因检测中更简单快捷并无损的样本来源。方法:采集97例来自温州特殊教育学校非综合征型耳聋学生的口腔拭子和外周血,分别提取基因组DNA,进行浓度与纯度的测定、基因扩增及产物测序,比较2种样本来源及2种方法提取的基因组DNA的浓度、纯度、扩增成功率,并将测序结果与人类线粒体DNA剑桥参考序列进行比对。结果:口腔拭子DNA的手工法提取浓度(42.5±41.7)ng/mL与试剂盒法DNA浓度(44.8±43.4)ng/mL差异无统计学意义(P>0.05);手工法DNA纯度(1.45±0.73)低于试剂盒法(1.87±0.87),两组间差异有统计学意义(P<0.05);二者扩增成功率与外周血差异均无统计学意义(P>0.05);口腔拭子DNA的药物性耳聋基因扩增产物长短一致,测序结果完全相符,均显示A1555G突变阳性2例,阴性95例;C1494T突变97例均阴性。结论:无损性样本口腔拭子扩增成功率高,诊断结果可靠,可替代外周血作为药物性耳聋基因检测的DNA来源,具有一定的临床应用价值。 | 张琼敏 郑静 宋攀攀 朱翌 陈晓云 管敏鑫 | 2011 | 温州医学院学报2011，41，5： | 2 |
| 5 | 沧州地区1080例新生儿耳聋基因筛查结果分析显示文摘目的通过对沧州地区新生儿进行十五项耳聋基因检测,了解沧州地区新生儿耳聋基因携带情况。方法采集2019年1月至2019年12月于沧州市妇幼保健院出生的1080例新生儿足跟血血片,进行耳聋基因相关检测,包括4个基因15个位点。结果共检测出110例致聋基因突变患儿,突变率为10.19%。GJB2基因突变的携带频率为5.49%,GJB3基因突变的携带频率为0.74%,SLC26A4基因突变的携带频率为4.91%,MT-RNR1基因突变的携带频率为0.56%。四个基因在人群中携带率有统计学差异(P<0.001)。沧州地区四个耳聋基因突变率与南宁、济宁、武威、宁波和珠海地区携带率相比,有统计学差异(P<0.001)。结论沧州地区致聋基因突变率高于全国平均水平,有其特异性。新生儿家属应加强耳聋基因筛查意识,以便临床医师早诊断、早干预,降低耳聋的发生率。 | 强桂彦 | 2020 | 中国优生与遗传杂志2020，28，10： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员