不同类型的病原体对血清N-葡萄糖在败血症休克中的影响
Helena Torpy1,2, The Huong Chau3, Sayantani Chatterjee3
1Infectious Diseases Unit, Royal Adelaide Hospital, Adelaide, SA 5000, Australia.
BBA advances
|January 29, 2025
概括
真菌感染显著改变血清N-甘氨酸在性休克患者,与细菌或病毒感染不同. 这表明,新的基于糖甘的生物标志物有可能用于诊断菌感染,如候选性血症.
科学领域:
- 生物化学 生物化学
- 免疫学 免疫学 免疫学
- 传染性疾病 传染性疾病
背景情况:
- 败血症的诊断和病原体的识别仍然具有挑战性,特别是在培养负的病例或候选血症.
- 目前的诊断方法不足以在败血症中快速准确地检测病原体.
研究的目的:
- 调查不同类型的传染病原体 (病毒,细菌,真菌) 对败血症患者血清N-葡萄糖的影响.
- 为了识别潜在的血清N-甘氨酸生物标志物,以区分败血症的原因.
主要方法:
- 使用PGC-LC-MS/MS对49名败血症休克患者的血清进行比较N-糖因子分析.
- 基于病原体类型的患者分层:病毒 (n=9),细菌 (n=37) 和真菌 (n=3).
主要成果:
- 与病毒和细菌感染相比,真菌感染显示出明显的血清N-糖化模式.
- 关键差异包括改变的α2,6-化双年期N-甘氨酸,升高的IgG型N-甘氨酸和甘氨酸类型的全球变化,核心化和α2,6-化.
- 细菌和病毒感染没有表现出对分层的显著全球N-糖体差异;细菌亚型仅显示微妙的变化.
结论:
- 血清N-葡萄糖样本在性休克中,在真菌和其他病原体类别之间存在显著差异.
- 这些发现突显了N-甘氨酸作为生物标志物的潜力,用于诊断菌感染,特别是血症患者的血症.
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