在双性CYP1B1致病变体中,先天性角膜的可变表型
Elena Franco1,2,3, Meghal Gagrani1, Hannah L Scanga1
1Division of Pediatric Ophthalmology, Strabismus, and Adult Motility, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA.
Cornea
|October 3, 2023
概括
与CYP1B1基因变异相关的先天性角膜不透明性呈现出不同的表型,包括彼得斯异常和CYP1B1细胞质病变. 了解这种变异性对于临床意识和管理至关重要.
科学领域:
- 眼科医生 眼科 眼科
- 遗传学 遗传学 是一个
- 儿科眼部疾病 儿科眼部疾病
背景情况:
- 先天性角膜不透明 (CCO) 是罕见的,往往导致儿童显著的视力障碍.
- CYP1B1基因的致病变体与各种眼部发育障碍有关.
- 与CYP1B1变异相关的表型谱,特别是CCO,需要进一步阐明.
研究的目的:
- 描述双性CYP1B1致病变体患者先天性角膜不透明的可变临床和本病理表型.
- 区分已知和潜在的新型CCO与CYP1B1突变相关的呈现.
主要方法:
- 在匹兹堡的UPMC儿童医院对CCO和CYP1B1变异患者的回顾性图表审查.
- 分析眼科检查,高频超声波,前段OCT,组织病理学和遗传检测结果.
- 基因型与观察到的临床表型和本病理学发现的相关性.
主要成果:
- 确定了三名患有CCO和双性CYP1B1变异的儿科患者,所有患者的眼内压升高.
- 两名患者表现出双边边缘至边缘的无血管角膜模糊,通过穿透角膜整形进行管理.
- 一名患者呈现出单侧角膜不透明性和其他眼睛的先天性玻璃眼的特征,对眼内压力控制做出反应.
结论:
- 双性CYP1B1致病变体可以表现为CCO表型的光谱,包括彼得斯异常类型1和称为CYP1B1细胞病变的独特的边缘至边缘不透明性.
- 组织病理学发现揭示了特征性上皮和肌层异常,具有可变的Descemet膜和内皮细胞变化.
- 对这种表型变异的认识对于准确的诊断和受影响儿童的适当临床管理至关重要.
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