罕见的骨脆弱性疾病的临床谱和对双酸盐治疗的反应:一项回顾性研究
Maëlle Charpié1,2, Perrine Brunelle2,3, Geneviève Baujat1,2
1Department of Genomic Medicine for Rare Diseases, French Reference Center for Constitutional Bone Diseases, Necker-Enfants Malades Hospital, Paris, France.
European journal of human genetics : EJHG
|June 26, 2024
概括
这项研究定义了罕见的骨质发生不完善 (OI) 形式的自然史,并表明双酸盐治疗显著增加了骨矿物质密度,减少骨折率,特别是在早期开始时.
科学领域:
- 遗传学和分子生物学
- 儿科 儿科 儿科
- 内分泌学 在内分泌学.
背景情况:
- 骨质发生不完善 (Osteogenesis Imperfecta,简称OI) 是一种脆弱的骨疾病,有20多个已知的致病基因,包括罕见的非COL1A1/COL1A2变异.
- 双酸盐是标准的OI治疗,已知可以改善腰椎骨矿物质密度 (BMD),但它们对骨折减少的影响仍在争论中.
研究的目的:
- 在非COL1A1/COL1A2 OI变异的患者中调查基因型-表型相关性.
- 评估对这些罕见的OI形式的双酸盐治疗的临床有效性,重点关注骨,骨折率和骨周转率.
主要方法:
- 38名患有骨脆弱性和非COL1A1/COL1A2基因变异的患者的临床表征.
- 评估双酸盐治疗对腰椎骨质量,非脊椎骨折率,骨周转标志物和身高的影响.
主要成果:
- 特定变异 (CRTAP,TMEM38B) 显示出一致的产前大腿部异常,尽管不能预测产后严重程度.
- 所有患者都表现出显著的,剂量依赖的LS BMD增加与双酸盐治疗.
- 在治疗期间,LS BMD 的增加与每年减少的非脊椎骨折率相关.
结论:
- 这项研究澄清了与非COL1致病变体相关的罕见OI形式的自然史.
- 双酸盐治疗有效地增加了LS BMD,并降低了这些患者的骨折率.
- 早期启动双酸盐治疗对于最大限度地减少OI骨折率至关重要.
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