海姆勒综合症与牙 Agenesis,异常的牙和牙矿化,根部发育不良,和PEX1突变
Piranit N Kantaputra1, Atitaya Apivatthakakul2, Massupa Kaewgahya3
1Center of Excellence in Medical Genetics Research, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand; Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand.
International dental journal
|June 4, 2025
概括
海姆勒综合征与PEX1基因突变有关,导致牙缺陷和牙产生等牙科问题. 这项研究确定了新的PEX1变异,并扩展了这种罕见遗传疾病已知的口腔和骨表现.
科学领域:
- 遗传学 遗传学 是一个
- 口腔生物学 口腔生物学
- 医学遗传学 医学遗传学
背景情况:
- 海姆勒综合征是一种罕见的遗传疾病.
- 它的特征是不完美的乳腺发育,神经传感器听力损失,视网膜色素炎和指甲缺陷.
- 涉及PEX1和PEX6基因中的双变异.
研究的目的:
- 在患有海姆勒综合征的患者中识别遗传变异.
- 分析受影响患者的牙特征.
- 为了研究这种综合症背后的分子机制.
主要方法:
- 临床和放射检查.临床和放射检查.
- 整体外基因组测序. 全体外基因组测序.
- 扫描电子显微镜,微型计算机断层扫描和Pex1.1的免疫组织化学研究.
- 突变蛋白质的建模.
主要成果:
- 一名患有海姆勒综合征的18岁男性在PEX1基因中被发现具有复合异构基因突变 (c.2966T>C;p.Ile989Thr和c.2097_2098insT;p.Ile700TyrfsTer42).
- 临床发现包括非完美的乳腺发育,感觉神经听力损失,色素视网膜炎,白血病,arachnodactyly,牙发育,微牙,根部发育不良,以及牙喷发的失败.
- SEM揭示了牙和牙的去矿化;蛋白质建模表明非活性的或破坏的蛋白质相互作用.
结论:
- 这项研究确定了与海姆勒综合征相关的新型PEX1突变.
- 它扩大了临床表现的范围,包括arachnodactyly和各种牙异常.
- 这些发现为海姆勒综合征的病理机制提供了洞察力,特别是在牙和骨发育方面.
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