テアニン加水分解物を添加して免疫細胞を培養すると、添加しない場合に比べてより細胞数が増加しました。テアニンを摂取した場合にも免疫細胞が増加することが確認されています。このことから、テアニンが体内で代謝された成分が免疫細胞を活性させると考えられます。
When immune cells were cultured by adding theanine hydrolyzate, the number of cells increased more than when not added. It has been confirmed that immune cells increase even when theanine is ingested. From this, it is thought that the component that theanine is metabolized in the body activates immune cells.
カテキン、テアニンを摂取することでインフルエンザや風邪の予防や症状を緩和することが示唆されました。これらは、カテキン、テアニンの摂取により免疫が活性化されていることによるものと考えられます。
It was suggested that ingestion of catechin and theanine would alleviate the symptoms and prevention of influenza and cold. These are thought to be due to activation of immunity by ingestion of catechin and theanine.
カテキンがインフルエンザウイルスを凝集する
Catechin aggregates influenza virus
When green tea extract was added to a solution containing influenza virus and the details infected with the solution were cultured, plaque formation indicating that the virus was infected was suppressed depending on the concentration of catechin (EGCg) It was. Observation with an electron microscope revealed that the virus was aggregated in the system to which the green tea extract was added. It is thought that this prevents the virus from infecting cells.
参考資料
1) Rowe, C. A., Nantz, M. P., Bukowski, J. F. and Percival, S. S.; Specific Formulation of Camellia sinensis Prevents Cold and Flu Symptoms and Enhances γδ T Cell Function: A Randomized, Double-Blind, Placebo-Controlled Study, J Am Coll Nutr 26(5),445-452 (2007)
2) M. Nakayama, K. Suzuki, M. Toda, S. Ohkubo, Y. Hara, T. Simamura; Inhibition of the infectivity of influenza virus by tea polyphenols, Antiviral Research (21),289-299 (1993)
3) J. F. Bukowski, C. T. Morita and M. B. Brenner; HumanγδT cells recognize alkylamines derived from microbes, edible plants, and tea: implications for innate immunity, Immunity 11(1),57-65 (1999)
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