病毒载量:我们需要对一个旧问题的新视角吗?
1Laboratório de Hantaviroses e Rickettsioses, Instituto Oswaldo Cruz Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil.
Journal of medical virology
|August 28, 2023
概括
精确的病毒载荷测量对于管理HIV和COVID-19等病毒感染至关重要. 目前使用原始Ct值的方法不可靠,需要标准化方法来精确的病毒量化和改善患者护理.
科学领域:
- 病毒学 病毒学
- 分子生物学分子生物学
- 传染性疾病 传染性疾病
背景情况:
- 病毒载量,即病毒遗传物质的数量,对于监测病毒感染 (例如,HIV,COVID-19) 和治疗疗效至关重要.
- "病毒载荷"一词在COVID-19大流行期间获得了公众认可,突出了其在临床管理和研究中的重要性.
- 目前依赖原始循环值 (Ct) 值来估计病毒载量,在准确性和可比性方面存在重大挑战.
研究的目的:
- 突出对标准化和验证方法的关键需求,以精确量化病毒载量.
- 为了解决在病毒载量估计中使用原始Ct值的局限性.
- 强调准确的病毒载量测量对于有效的患者管理和公共卫生策略的重要性.
主要方法:
- 审查病毒载量测量的现有实践.
- 分析与定量聚合酶链反应 (qPCR) Ct值相关的局限性和可变性的分析.
- 确定影响病毒载荷精度的因素,包括样本质量,测试平台和RNA提取效率.
主要成果:
- 原始Ct值在不同的测定,平台和实验室中表现出显著的变化,阻碍了跨研究数据的比较.
- Ct值是受众因素影响的间接措施,而不是直接量化病毒颗粒.
- 观察到显著的科学文献缺乏针对病毒载量量化的标准化策略.
结论:
- 缺乏标准化,验证的病毒载量量化的方法,阻碍了有效的临床管理和研究.
- 样本细胞计数和病毒颗粒数量的变化进一步使准确的测量变得复杂.
- 需要紧急开发和验证量身定制的标准化方法,以提高病毒载量定量准确性和患者的治疗结果.
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