修订了1型VWD分类:从LoVIC和WiN研究的综合分析中获得了新的见解
Ferdows Atiq1,2, Robin Blok2, Calvin B van Kwawegen2
1Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin, Ireland.
Blood
|December 24, 2023
概括
低·威尔布兰德因子 (VWF) 并不是一个独特的疾病,而是1型VWD的演变表型. 年龄影响VWF水平,模糊了低VWF和1型VWD诊断之间的界限.
科学领域:
- 血液学 血液学 血液学
- 遗传学 是一个遗传学.
- 临床医学 临床医学
背景情况:
- 1型·维勒布兰德病 (VWD) 的定义仍在争论中,之前的指导方针根据VWF水平进行区分 (<1型VWD的30 IU/dL,低VWF的30-50 IU/dL).
- 与年龄相关的VWF水平的增加使1型VWD和低VWF之间的区别变得复杂.
研究的目的:
- 调查1型VWD和低VWF之间的关系.
- 要确定低VWF是否代表一个单独的临床实体或1型VWD的年龄依赖的表现.
主要方法:
- 来自两个国家队列的综合数据:爱尔兰的低VWF (LoVIC) 和荷兰的Willebrand (WiN).
- 在1型VWD和低VWF患者中分析了VWF水平,VWF序列变异,XIII因子活性/VWF:Ag比率,VWF/VWF:Ag比率和德斯莫普林素反应.
- 使用多重回归分析来评估年龄调整的VWF:Ag水平.
主要成果:
- 在1型VWD患者中,VWF水平随着年龄的增长而增加,在23%的患者中正常化 (>50 IU/dL),并在30%的患者中达到低VWF范围 (30-50 IU/dL).
- 绝对VWF抗原 (VWF:Ag) 水平和与年龄相关的VWF:Ag增加在低VWF和1型VWD正常化组之间重叠显著.
- 在VWF序列变异,FVIII/VWF:Ag比率,VWFpp/VWF:Ag比率或低VWF和1型VWD正常化组之间的desmopressin反应中没有发现显著差异.
结论:
- 低VWF不是一个独特的临床或病理实体,而是1型VWD的演变,年龄依赖的表型的一部分.
- 这些发现表明,需要重新评估当前的VWD分类标准.
- 该研究强调了VWF水平的动态性质及其对VWD诊断的影响.
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