Response of healthy individuals to Ninjin-Yoei-to extract - Enhancement of natural killer cell activity

Tsutomu Kamei, Hiroaki Kumano, Kunihide Beppu, Kentaro Iwata, Sumio Masumura

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After administering 15 g/day of Ninjin-Yoei-To (NYT) for one week to healthy people whose NK activity had already been increased by physiological response, a further increase in NK activity was observed after two days. This increased level of NK activity continued during the administration of NYT for a one-week period. The maintaining and reinforcing effect on the immune surveillance system by NYT may be useful for prevention of carcinogenesis.

Original languageEnglish
Pages (from-to)91-95
Number of pages5
JournalAmerican Journal of Chinese Medicine
Issue number1
Publication statusPublished - 1998 Jan 1


ASJC Scopus subject areas

  • Complementary and alternative medicine

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