COVID-19 パンデミックの間,自己免疫性脳炎の病院発症率が減少しました
Jonathan Wickel1, Ha-Yeun Chung1, Franz Felix Konen2
1Section of Translational Neuroimmunology, Department of Neurology, Jena University Hospital, Germany.
Neurology(R) neuroimmunology & neuroinflammation
|February 13, 2026
まとめ
COVID-19のパンデミックは,自己免疫性脳炎 (AE) の発生率や重症度を増加させなかった. 自身抗体に関連したAE症例はわずかに減少したが,疾患の重度の変化は認められず,SARS-CoV-2がAEを誘発しないことを示唆している.
科学分野:
- 神経学 神経学とは
- 免疫学 免疫学とは
- 感染症 感染症は感染症です.
背景:
- 自己免疫性脳炎 (AE) は重度の神経疾患である.
- COVID-19のパンデミックは,自己免疫疾患の潜在的なトリガーの懸念を高めた.
- パンデミックがAEの発生率と重症度に与える影響は,以前は不明でした.
研究 の 目的:
- 病院での発生率と自己抗体関連AEの重症度の変化を分析する.
- COVID-19のパンデミック期間中のAE症例を,パンデミック前期と比較するために.
主な方法:
- 2017年から2022年の間に診断された392人の患者を含む遡及的マルチセンター研究.
- ドイツの自己免疫性脳炎研究ネットワーク (GENERATE) の24のセンターからのデータを分析した.
- パンデミック前 (2017年−2019年) とパンデミック前 (2020年−2022年) に分けられた患者群.
主要な成果:
- 病院でのAEの発生率は,パンデミック期間中に減少しました (場所ごとに9.5〜6.9例,p=0.04).
- ニューロン表面抗原に対する抗体を持つ症例は減少 (p=0.02),細胞内抗体を持つ症例は安定 (p=0.40) した.
- 2つの期間間で,疾患の重症度,年齢,または性別分布の有意な違いは観察されなかった.
結論:
- この研究は,COVID-19のパンデミック前およびその間における抗体陽性AEに関する臨床データを提供します.
- 発見は,SARS-CoV-2感染がオートアンチボディ関連AEを引き起こすという仮説を支持しません.
- COVID-19のパンデミックは,自己免疫性脳炎の重症度を増加させなかった.
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