メチルグリオキサールと脳小血管疾患および認知機能との関連 - マーストリヒトスタディ
Eline Berends1, Simone J P M Eussen2, Walter H Backes3
1Department of Internal Medicine, Maastricht University, Netherlands.; Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Netherlands.
まとめ
中間的な血漿メチルグリオキサール(MGO)レベルは、脳小血管疾患(CSVD)のマーカーであるラクナ梗塞の発生率上昇と関連していた。MGOがラクナ梗塞の形成に因果的に影響するかどうかについては、さらなる研究が必要である。
科学分野:
- 神経学
- 内分泌学
- 代謝学
背景:
- 脳小血管疾患(CSVD)および認知症の有病率は、加齢とともに増加する。
- 糖尿病はCSVDおよび認知機能低下の重要な危険因子であるが、そのメカニズムは不明である。
- 糖尿病関連代謝物であるメチルグリオキサール(MGO)は、微小血管障害に関与していると考えられている。
研究 の 目的:
- 血漿MGOレベルとMRIで評価されたCSVDマーカーとの関連を調査する。
- 集団ベースのコホートにおける血漿MGOと認知機能との関連を調べる。
主な方法:
- マーストリヒトスタディ(n=2515)の横断的データを用いた。
- 血漿MGOはUPLC-MS/MSで測定した。
- CSVDマーカー(白質病変、ラクナ梗塞、微小出血)はMRI(n=1789)で評価した。
- 交絡因子を調整した回帰分析を行った。
主要な成果:
- 血漿MGOとCSVDマーカーまたは認知機能との間には、線形の関連は認められなかった。
- 中間的な血漿MGOレベルでは、最低レベルと比較してラクナ梗塞のオッズが高かった(OR: 2.26)。
- 最も高い血漿MGOレベルでは、ラクナ梗塞との有意な関連は認められなかった。
結論:
- 中間的な血漿MGOレベルは、ラクナ梗塞の有病率上昇と関連していた。
- MGOのラクナ梗塞発生における因果的役割については、さらなる調査が必要である。
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