Regular cannabinoid use and inflammatory biomarkers: Systematic review and hierarchical meta-analysis
Martino Belvederi Murri1, Riccardo Guglielmo2, Alessio Zizzi2
1Institute of Psychiatry, Department of Neuroscience and Rehabilitation, University of Ferrara, Italy.
Brain, behavior, and immunity
|February 25, 2026
まとめ
Cannabis use impacts inflammation, showing both pro- and anti-inflammatory effects in recreational users. This suggests complex immunomodulatory impacts rather than a simple anti-inflammatory response.
科学分野:
- 免疫学; 薬理学; 公衆衛生
背景:
- 大麻使用の増加に伴い、その炎症への影響を理解する必要性が高まっています。カンナビノイドと炎症に関する既存の研究は一貫していません。健康な集団における非医療用大麻使用の炎症への影響は不明です。
研究 の 目的:
- カンナビノイド使用と末梢炎症バイオマーカーとの関連を調べること。カンナビノイドの免疫調節効果に関する既存のエビデンスを統合すること。非医療用大麻消費の炎症への影響を明らかにすること。
主な方法:
- 2025年10月までの体系的な文献検索。炎症バイオマーカーを使用者と非使用者で比較した研究の包含。研究およびバイオマーカーのクラスタリングを考慮した効果量のプール化のためのベイズ階層メタアナリシス。
主要な成果:
- 観察研究(n=178)では、大麻使用が炎症促進性(SMD=0.166)および抗炎症性(SMD=0.298)バイオマーカーの上昇と関連していることが示されました。カンナビジオール(CBD)のランダム化比較試験(RCT)では、炎症促進性マーカーのわずかな増加(SMD=0.15)が示唆されました。前向き研究では一貫した効果は見られず、主要な出版バイアスは検出されませんでした。
結論:
- カンナビノイドの使用は、非医療用ユーザーにおける同時期の炎症促進および抗炎症調節と関連しています。これらの所見は、均一な抗炎症シフトではなく、複雑な免疫調節効果を示唆しています。長期的な健康転帰の理解とカンナビノイド治療の指針のためには、さらなる研究が不可欠です。
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