在神经脊髓炎光学谱障碍中,COVID-19疫苗反应
Cavid Baba1, Ergi Kaya2, Sinem Ozcelik2
1Department of Neurosciences, Institute of Health Sciences, Dokuz Eylul University, Izmir, Turkey.
Clinical neurology and neurosurgery
|February 21, 2024
概括
接受Rituximab的神经炎光学谱系障碍患者在接种COVID-19疫苗后显示抗体水平较低. 这表明,尽管接种了疫苗,他们可能仍然容易受到严重感染.
科学领域:
- 免疫学 免疫学 免疫学
- 神经学 神经学
- 传染性疾病 传染性疾病
背景情况:
- 神经omyelitis光学谱系障碍 (NMOSD) 是一种自身免疫性中枢神经系统疾病,需要免疫抑制剂,增加COVID-19严重性风险.
- 在免疫功能低下的NMOSD患者中,疫苗的疗效在很大程度上是未知的.
- 疫苗接种后评估抗体反应对于管理这一群体的流行病风险至关重要.
研究的目的:
- 评估和比较NMOSD患者的抗体水平,在两剂不活化和mRNACOVID-19疫苗接种后接受疾病修饰疗法.
- 为了比较NMOSD患者和健康对照人群之间的疫苗反应.
- 根据特定的NMOSD治疗方法,识别疫苗疗效的潜在差异.
主要方法:
- 招募的NMOSD患者和年龄性别匹配的健康对照,他们接受了两剂非活化或mRNACOVID-19疫苗.
- 在第二剂疫苗接种后至少两周收集血清样本.
- 在两组中评估了血清抗体标位.
主要成果:
- 与健康对照组 (3.23 ± 0.80) 相比,NMOSD患者的平均抗体标位明显较低 (2.43 ± 1.51).
- 仅在接受Rituximab治疗的NMOSD患者中 (9例) 观察到血清阴性,而在阿扎西奥普林组中没有血清阴性病例.
- NMOSD患者队列:24人 (平均年龄36.58岁,70.83%为女性). 健康的对照队列:24人 (平均年龄36.71岁,70.83%是女性).
结论:
- 在NMOSD患者,尤其是接受Rituximab治疗的患者,可能会在接种疫苗后对严重的COVID-19感染的保护性降低.
- 在NMOSD患者中较低的抗体标位表明可能需要加强预防策略.
- 需要进一步的研究来优化NMOSD免疫力低下个体的疫苗接种方案.
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