2021 Fiscal Year Final Research Report
Anti-Toxoplasma and neuroprotective potential of medicinal plant Hypericum
Project/Area Number |
19K07839
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 51030:Pathophysiologic neuroscience-related
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Research Institution | Osaka University (2020-2021) Chiba University (2019) |
Principal Investigator |
Shinjyo Noriko 大阪大学, 免疫学フロンティア研究センター, 特任研究員(常勤) (60794039)
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Co-Investigator(Kenkyū-buntansha) |
野呂瀬 一美 千葉大学, 大学院医学研究院, 特任准教授 (30156244)
彦坂 健児 千葉大学, 大学院医学研究院, 准教授 (30456933)
吉田 裕樹 佐賀大学, 医学部, 教授 (40260715)
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Project Period (FY) |
2019-04-01 – 2022-03-31
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Keywords | 寄生虫 / 薬用植物 / 感染症 |
Outline of Final Research Achievements |
Toxoplasma gondii is an obligate intracellular protozoan parasite, causing opportunistic infection in approximately one third of the world population. Vertical transmission can cause severe damages to the fetus, while Toxoplasma reactivation in immunocompromised individuals can render debilitating effects. In addition, T. gondii is a neurotropic parasite causing various neuropsychiatric disorders. There is no cure for Toxoplasma chronic infection, thus development of safer and more effective treatment is desired. Hypericum spp. are plant species well-known for their medicinal properties. These plant species have long been used in folk medicines worldwide. This study investigated anti-Toxoplasma potential of two Hypericum spp., namely H. erectum and H. perforatum, and found that H. perforatum and its unique active constituent Hyperforin are potentially effective against Toxoplasma chronic infection.
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Free Research Field |
感染症、免疫学
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Academic Significance and Societal Importance of the Research Achievements |
トキソプラズマ慢性感染は日本において10-30%に蔓延するとされる。垂直感染が胎児に重篤な脳障害を来す一方、妊娠中の抗トキソプラズマ薬使用は制限されるため、安全性の高い生薬に期待が寄せられる。また、ストレスの蔓延する現代社会において抗病原体効果・抗神経炎症効果を持つ薬用植物資源の探索は、トキソプラズマ症に限らずサイトメガロウイルスなど、その他の日和見感染症に応用できるものであり、さらに神経炎症が関連する様々な精神神経疾患の治療・予防法の開発にも貢献すると期待される。
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