对21名患有多系统炎症综合征的儿童尾的病理分析,与急性尾炎的样本进行比较:一个横截面研究
Magdalena Okarska-Napierała1, Weronika Woźniak1, Joanna Mańdziuk1
1From the Department of Pediatrics with Clinical Assessment Unit, Medical University of Warsaw, Warsaw, Poland.
The Pediatric infectious disease journal
|May 16, 2024
概括
来自多系统炎症综合征 (MIS-C) 儿童的尾切除样本显示没有SARS-CoV-2抗原或淋巴细胞耗尽. 这些发现表明肠道病毒持续性不是主要的MIS-C触发因素.
科学领域:
- 儿科胃肠病学 儿科胃肠病学
- 传染性疾病 传染性疾病
- 免疫学 免疫学 免疫学
背景情况:
- 儿童多系统炎症综合征 (MIS-C) 是一种严重的COVID-19并发症,影响肠道.
- 一些MIS-C患者在诊断前进行尾切除.
- 假设表明病毒抗原持久性和肠道中的淋巴细胞耗尽有助于MIS-C.
研究的目的:
- 为了研究MIS-C患者的尾切除样本.
- 评估病理特征和SARS-CoV-2抗原的存在.
- 为了评估淋巴细胞亚群和疲劳标记.
主要方法:
- 对21名经过尾切除的MIS-C患者进行横截面研究.
- 21名患有急性尾炎 (AA) 的儿童组成的对照组.
- 对免疫细胞,PD-1和SARS-CoV-2抗原的尾样本的组织学和免疫组织化学分析.
主要成果:
- 在MIS-C附录中,缺乏中性友的透物和典型的AA的.
- 在MIS-C患者中观察到较高的CD20+至CD5+和CD4+至CD8+细胞比率.
- 在MIS-C附录中没有发现SARS-CoV-2抗原或淋巴细胞枯竭的证据.
结论:
- 在MIS-C中,尾病理与急性尾炎有显著差异.
- 在MIS-C附录中缺乏SARS-CoV-2抗原和PD-1挑战了肠道病毒持久性理论.
- 这些发现表明,SARS-CoV-2肠道持久性和淋巴细胞枯竭不太可能是MIS-C的主要触发因素.
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