与未来严重肝病相关的生物标志物在患有α-1-抗素缺乏症儿童中
Jeffrey H Teckman1, Paula Buchanan2, Keith Steven Blomenkamp1
1Department of Pediatrics and Biochemistry and Molecular Biology, St. Louis University School of Medicine, Cardinal Glennon Children's Hospital, St. Louis, Missouri.
Gastro hep advances
|September 16, 2024
概括
儿童早期高Z聚合物水平和胺转移酶 (GGT) 预测在α-1-抗素缺乏症 (AATD) 中严重的肝病. 这一发现有助于识别临床试验中的有风险儿童.
科学领域:
- 儿科肝病学 儿科肝病学
- 遗传性肝脏疾病 遗传性肝脏疾病
- 生物标志物发现发现
背景情况:
- 阿尔法-1-抗素缺乏症 (AATD) 在儿童中引起可变的肝病,从无症状到严重的门性高血压.
- 在AATD中肝损伤与突变Zα-1-抗素 (AAT) 蛋白在肝细胞内的积累和聚合有关.
- 在AATD患者中循环Z聚合物的重要性仍然不清楚.
研究的目的:
- 确定儿科AATD中严重肝病的预测生物标志物.
- 分析AATD儿童中Z聚合物水平和临床结果之间的关系.
主要方法:
- 分析了来自251名儿科AATD受试者 (2007-2015) 的前性数据和血清样本.
- 评估Z AAT聚合物水平,AAT总量,以及与肝病结局相关的玛-氨基转移酶 (GGT).
- 对临床明显的门高血压 (CEPH) 进行预测模型的开发.
主要成果:
- 较高的Z AAT聚合物水平与现有的CEPH相关 (P = .01).
- 在婴儿中,高聚合物水平预测了未来的CEPH,而AAT总水平则没有.
- 早期高GGT与未来的CEPH有显著的关联.
- 结合GGT和聚合物水平的预测模型实现了0.83的AUC (P = .019).
结论:
- 在儿科AATD中,高循环Z聚合物和生命早期的GGT与未来的严重肝病 (CEPH) 有关.
- 这些生物标志物的预测切断值可以帮助设计未来对AATD的临床试验.
- 这项研究为AATD相关肝脏并发症的早期风险分层提供了宝贵的见解.
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