科罗拉多州对非常长链乙基-CoA脱酶缺乏症的新生儿查后续:致力于制定标准化协议
M M Crenshaw1, O M D'Annibale2, A Schechter3
1University of Colorado School of Medicine, Department of Pediatrics, Section of Genetics and Metabolism, 13123 E. 16th Ave. B065, Aurora, CO 80045, USA.
Molecular genetics and metabolism
|April 11, 2025
概括
针对非常长链乙-甲酸脱酶缺乏症 (VLCADD) 的新生儿查仍然具有挑战性. 结合分子测试和乙卡尼丁配置文件的新诊断算法显示了对婴儿分类的高度一致性.
科学领域:
- 生物化学 生物化学
- 遗传学 遗传学 是一个
- 新生儿查 新生儿查
背景情况:
- 非常长链乙-CoA脱酶缺乏症 (VLCADD) 是一种遗传性代谢障碍,影响脂肪酸氧化.
- 针对VLCADD的新生儿查 (NBS) 已经实施了20多年,但诊断挑战仍然存在.
研究的目的:
- 评估目前通过NBS识别的VLCADD诊断方法的有效性.
- 开发和评估一种新的,标准化的诊断算法,用于准确地对婴儿进行VLCADD分类.
主要方法:
- 在科罗拉多州 (2017-2023) 进行了对患有异常VLCADD NBS结果的婴儿的回顾性图表审查.
- 血乙卡尼丁 (P-ACP) 概况分析,ACADVL遗传测序,酶分析和基于细胞的变异表达.
- "临床名称"与各种诊断算法的比较.
主要成果:
- 只有7%的查异常的婴儿被证实受影响;87%被认为不受影响.
- C14: 1/C12: 1 的乙卡尼丁比率显示了受影响和不受影响的个体之间的最佳歧视.
- 一个结合的算法 (分子测试+基于细胞的表达+P-ACP C14:1或C14:1/C12:1) 与临床指定达成96%的一致性.
结论:
- 没有单一的生物标志物可靠地区分受影响的婴儿和未受影响的婴儿,具有阳性VLCADD NBS结果.
- 建议采用标准化诊断方法,将分子发现和特定的P-ACP标记物整合在一起.
- 在独立的数据集上进一步验证拟议的算法是必要的,以优化婴儿护理和尽量减少诊断的不确定性.
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