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脆角膜综合征:分子诊断和管理

Marco Zeppieri^1,2, Mattia Gentile³, Antonio Acquaviva⁴

¹Department of Ophthalmology, University Hospital of Udine, 33100 Udine, Italy.

Diagnostics (Basel, Switzerland)

|July 12, 2025

概括

脆角膜综合征 (BCS) 是一种罕见的遗传疾病,导致严重的角膜变薄. 早期的遗传诊断和定制的手术,如角膜整形手术,是保护受影响个体视力的关键.

科学领域:

眼科医生眼科眼科
遗传学是一个遗传学.
结合组织疾病结合组织疾病

背景情况:

脆角膜综合征 (BCS) 是一种罕见的自体相衰退性疾病.
它涉及到极端的角膜稀疏,高近视和破裂风险,通常是由于ZNF469或PRDM5基因突变.
早期诊断对于预防视力丧失至关重要.

研究的目的:

在阿尔巴尼亚兄弟姐妹中出现了两例基因确诊的BCS病例.
强调整个外体组序列测序的诊断实用性.
强调BCS的个性化外科管理策略.

主要方法:

详细的眼科评估,包括角膜厚度测量.
整体外基因组测序以识别致病变体.
手术干预:穿透式角质整形 (PKP) 和深前层层状角质整形 (DALK).

主要成果:

在两个兄弟姐妹的PRDM5基因中确定了同卵性致病变体c.974delG (p.Cys325LeufsX2).
在男性患者中,PKP导致BCVA为20/30.
在女性患者中,DALK转化为PKP的BCVA值为20/25.
两位患者在7年的随访期间都没有出现并发症.

结论:

早期的遗传诊断对于有效管理角膜综合征至关重要.
量身定制的手术方法,包括角膜整形,改善视觉结果.
长期监测和保护措施对于预防BCS并发症至关重要.

关键词:

在PRDM5基因中,中央角膜稀释中央角膜稀释遗传角膜疾病遗传角膜疾病没有规则的纹.质球体的质球体帕奇米特里 (Pachymetry) 是一种对比法.

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