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メチレンテトラヒドロフォラート還元酵素 (MTHFR) 遺伝子変異が自閉症スペクトル障害の重症度に与える影響を調べる
Christian C Iannuzzelli1, Andrea L Iannuzzelli2, Brandon Cunha1
1Rowan-Virtua School of Osteopathic Medicine, Stratford, NJ, USA.
Journal of osteopathic medicine
|September 5, 2025
まとめ
メチレンテトラヒドロフォラート還元酵素 (MTHFR) の活性低下は,自閉症スペクトル障害 (ASD) の症状の重症度の増加と関連しています. これはMTHFR遺伝子の変異がASDの進行に影響し,早期スクリーニングを促す可能性があることを示唆しています.
科学分野:
- 神経科学
- 遺伝学
- 発達に関する小児科
背景:
- 自閉症スペクトル障害 (ASD) は,複雑な遺伝的および環境的影響を持つ神経発達状態です.
- メチレンテトラヒドロフォラート還元酵素 (MTHFR) 遺伝子の変異は,ASDの個人に多く見られ,神経発達に不可欠な葉酸代謝に影響を与えます.
- MTHFRとASDの関連性を理解することは,早期診断と介入戦略に不可欠です.
研究 の 目的:
- 臨床コホートにおけるMTHFR遺伝子変異とASD症状の重度との関連を調べる.
- 減少したMTHFR活性がより重度のASD症状と相関するかどうかを判断する.
- 潜在的メカニズムとASDの標的型介入についての洞察を提供すること.
主な方法:
- ASDと診断された78人の患者を集めました
- 精神障害の診断と統計マニュアル第5版 (DSM-5) の基準を用いてASDの重度が評価された.
- MTHFRの活動レベルとASDの症状の重度の関係を評価するために統計的分析を行った.
主要な成果:
- MTHFRの活性とASDの重症度 (p<0. 05) の間に有意な負の相関が確認されました.
- DSM-5の分類に基づいて,MTHFRの活性が低い患者は,より重度のASD症状を示した.
- これらの発見は,MTHFR遺伝子変異とASDにおける神経発達の結果の間の潜在的な関連を示唆しています.
結論:
- MTHFR遺伝子の変異はASDの重症度を調節する役割を果たします.
- MTHFRの活動は,ASDの早期スクリーニングとパーソナライズされた介入のためのバイオマーカーとして機能する.
- 試料の大きさによる現在の研究の限界を認識して,メカニズムを明らかにし,臨床戦略を開発するためにさらなる研究が必要です.
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