D Fraction Boosts Interferon Production

Byron's Comments:

D Fraction Focuses the immune system in a manner needed to fight viral infection.

Study Title:

Effect of maitake (Grifola frondosa) D-fraction on the control of the T lymph node Th-1/Th-2 proportion.

Study Abstract:

We have already reported that the D-Fraction, a beta-glucan extracted from the fruiting body of the maitake mushroom (Grifola frondosa), activates cellular immunity and expresses anti-tumor effects. In this study we investigated the anti-tumor functions of D-Fraction in relation to its control of the balance between T lymphocyte subsets Th-1 and Th-2. D-Fraction decreased the activation of B cells and potentiated the activation of helper T cells, resulting in enhanced cellular immunity. It also induced the production of interferon (IFN)-gamma, interleukin (IL)-12 p70, and IL-18 by whole spleen cells and lymph node cells, but suppressed that of IL-4. These results suggest that D-Fraction establishes Th-1 dominance which induces cellular immunity in the population that was Th-2 dominant due to carcinoma.

Study Information:

Inoue A, Kodama N, Nanba H. Effect of maitake (Grifola frondosa) D-fraction on the control of the T lymph node Th-1/Th-2 proportion. Biol Pharm Bull  2002 April  25(4):536-40.
Department of Microbial Chemistry, Kobe Pharmaceutical University, Japan.

Full Study:

http://www.jstage.jst.go.jp/article/bpb/25/4/25_536/_article/-char/en

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