在人类实验和临床疟疾中铁恒温的纵向变化
Stephen D Woolley1, Matthew J Grigg2, Louise Marquart3
1Infection and Inflammation Program, QIMR Berghofer Medical Research Institute, Brisbane, Australia; Clinical Sciences Department, Liverpool School of Tropical Medicine, Liverpool, United Kingdom; Academic Department of Military Medicine, Royal Centre for Defence Medicine, Birmingham, United Kingdom.
EBioMedicine
|June 8, 2024
概括
疟疾感染在疾病期间影响红细胞大小,而不是铁含量. 疟疾后可溶性转移林受体 (sTfR) 的持续升高表明与缺铁有关.
科学领域:
- 血液学 血液学 血液学
- 传染性疾病 传染性疾病
- 营养科学 营养科学
背景情况:
- 铁状况与疟疾易感性/严重性之间的关系尚未完全理解.
- 铁平衡在免疫反应和感染结果中起着至关重要的作用.
- 疟疾,特别是Plasmodium falciparum和Plasmodium vivax,在全球范围内影响着数百万人,具有显著的发病率和死亡率.
研究的目的:
- 为了研究疟疾感染期间铁稳态标志物的纵向变化.
- 评估疟疾寄生病和铁状况指标之间的相关性.
- 探索疟疾和缺铁之间的潜在联系.
主要方法:
- 在疟疾志愿者感染研究 (VIS) 和马来西亚疟疾患者中分析与铁相关的生物标志物 (费里丁,肝素,红蛋白,可溶性转激素受体[sTfR]).
- 使用ELISA进行纵向采样和测量.
- 感染个体和健康对照之间的铁状况标志物的比较.
主要成果:
- 寄生病与基线平均体质体积 (MCV) 相对应,而不是铁状况标志物.
- 在疟疾感染期间,费里丁,肝素和sTfR水平增加.
- 在VIS和临床疟疾队伍中,sTfR在感染后4周保持高,而费里丁和肝素正常化.
- 基线费里与VIS参与者治疗后肝转氨酶的增加有关.
结论:
- 疟疾寄生病与MCV有关,而不是直接与感染时的铁状况有关.
- 疟疾后持续升高的sTfR表明疟疾和随后的铁缺乏之间存在潜在的因果关系.
- 需要进一步的研究来阐明疟疾引起的铁失调背后的机制.
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