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诊断准确性和第一个基因型-表型相关性在糖原储存疾病类型V
Jorge Diogo Da Silva1,2,3,4, Ângela Pereira5,6, Ana Rita Soares7,8
1Centro de Genética Médica Doutor Jacinto Magalhães (CGM), Centro Hospitalar Universitário de Santo António, Porto, Portugal. jorge.dcr.silva@gmail.com.
Pediatric research
|December 5, 2023
概括
糖原储存疾病V型 (GSDV) 往往是晚期诊断的,即使在成年期,尽管早期症状. 这项研究确定了临床和遗传因素,可以帮助早期诊断这种低诊断的代谢障碍.
科学领域:
- 生物化学 生物化学
- 遗传学 是一个遗传学.
- 儿科 儿科 儿科
背景情况:
- 糖原储存疾病类型V (GSDV) 是一种被诊断不足的自体相衰退性代谢障碍.
- 它是由致病性PYGM变体引起的,在儿童中经常出现运动不耐受.
研究的目的:
- 评估GSDV的诊断时间和准确性.
- 确定早期诊断的潜在临床和分析预测因素.
主要方法:
- 对28例来自第三级医院的GSDV病例的回顾性审查.
- 从儿科和成人代谢疾病咨询中评估临床信息.
主要成果:
- 超过90%的病例被晚期诊断出来,超过50%的病例在成年后被诊断出来,尽管学前症状已经出现.
- 肌球蛋白尿与早期诊断年龄有关.
- 该R50*变体显示了与增加的肌球蛋白尿和CK升高的剂量依赖的关联.
结论:
- GSDV的诊断严重不足,并且经常被误诊.
- 临床和分析因素可以表明GSDV诊断.
- 确定了GSDV的第一个基因型-表型相关性,特别是R50*变体.
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