Elevated levels of 4-hydroxynonenal-histidine Michael adduct in the hippocampi of patients with Alzheimer's disease

• Fukuda Mitsugu

  Aging Regulation, Tokyo Metropolitan Institute of Gerontology

• Kanou Fumihisa

  Shima Laboratories

• Shimada Nobuko

  Aging Regulation, Tokyo Metropolitan Institute of Gerontology

• Sawabe Motoji

  Department of Pathology, Tokyo Metropolitan Geriatric Hospital

• Saito Yuko

  Department of Pathology, Tokyo Metropolitan Geriatric Hospital Department of Neuropathology, Tokyo Metropolitan Institute of Gerontology

• Murayama Shigeo

  Department of Neuropathology, Tokyo Metropolitan Institute of Gerontology

• Hashimoto Masakatsu

  Shima Laboratories

• Maruyama Naoki

  Aging Regulation, Tokyo Metropolitan Institute of Gerontology

• Ishigami Akihito

  Aging Regulation, Tokyo Metropolitan Institute of Gerontology Department of Biochemistry, Faculty of Pharmaceutical Sciences, Toho University

抄録

Alzheimer's disease (AD) is among the most common causes of progressive cognitive impairment in humans and is characterized by neurodegeneration in the brain. Lipid peroxidation is thought to play a role in the pathogenesis of AD. 4-hydroxynonenal (HNE) results from peroxidation of polyunsaturated fatty acids and it in turn gives evidence of lipid peroxidation in vivo. HNE reacts with protein histidine residue to form a stable HNE-histidine Michael adduct. To clarify the influence of lipid peroxidation on the pathogenesis of AD, we measured HNE-histidine Michael adduct in hippocampi from four AD patients and four age-matched controls by means of semiquantitative immunohistochemistry using a specific antibody to cyclic hemiacetal type of HNE-histidine Michael adduct. This antibody does not react with the ring-opened form of HNE-histidine Michael adduct and the pyrrole form of HNE-lysine Michael adduct. The HNE adduct was detected in the hippocampi of both AD and control donors, especially in the CA2, CA3 and CA4 sectors. Immunoreactive intensity of HNE adduct in these sectors were significantly higher in AD patients than in the controls. The HNE adduct was found in the perikarya of pyramidal cells in the hippocampus. These results show that the hippocampi of patients with AD undergo lipid peroxidation and imply that this activity underlies the production of cytotoxic products such as HNE that are responsible for the pathogenesis of AD.

収録刊行物

• Biomedical Research

  Biomedical Research 30 (4), 227-233, 2009

  バイオメディカルリサーチプレス

キーワード

• General Biochemistry, Genetics and Molecular Biology
• General Medicine

詳細情報

• CRID: 1390001204900215680
• NII論文ID: 130004903756
• DOI: 10.2220/biomedres.30.227
• ISSN: 1880313X
• ISSN: 03886107
• Web Site: https://search.jamas.or.jp/link/ui/2010027648
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可