Effects of Tea Infusions of Various Varieties or Different Manufacturing Types on Inhibition of Mouse Mast Cell Activation
1998; Oxford University Press; Volume: 62; Issue: 11 Linguagem: Inglês
10.1271/bbb.62.2277
ISSN1347-6947
AutoresMari Maeda‐Yamamoto, Hiroharu Kawahara, N Matsuda, Kouji NESUMI, Mitsuaki Sano, Kenkou Tsuji, Yuko Kawakami, Toshiaki Kawakami,
Tópico(s)Fermentation and Sensory Analysis
ResumoWe investigated effects of various tea infusions on mast cell activation using mouse mast cells. Among various tea extracts, infusions from cultivar ‘Benihomare’ and Taiwan lineage strongly inhibited histamine release after FcεRI cross-linking. Among three types of tea (from cultivar ‘Benihomare’), extract from oolong tea or black tea inhibited histamine release more strongly than green tea extract. Furthermore, ‘Benihomare’ oolong tea extract suppressed tyrosine phosphorylation of cellular proteins after FcεRI cross-linking, but polyvinyl polypyrrolidone treatment of the extract to remove phenolic compounds, weakened the suppressive effect.
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