Noni Activates Macrophages

Byron's Comments:

Cannabinoid 2 receptors are on the surface of macrophages, one type of important immune cell that Noni helps activate.

Study Title:

The effects of Morinda citrifolia L. (noni) on the immune system: Its molecular mechanisms of action

Study Abstract:

The aim of this study was to investigate the mechanisms involved in the immunomodulatory effects of Morinda citrifolia L. (noni) in vitro and in vivo in mice. In vitro, Tahitian Noni Juice (TNJ) and Noni fruit juice concentrates (NFJC) (1, 5mg/mL) potently activate cannabinoid 2 (CB2), but inhibit cannabinoid 1 (CB1) receptors in a concentration-dependant manner. In vivo, oral administration of TNJ ad libitum for 16 days decreased the production of IL-4, but increased the production of IFN-gamma. These results suggest that noni modulates the immune system via activating of the CB2 receptors, and suppressing of the IL-4, but increasing the production of IFN-gamma cytokines. It may also exert beneficial immunomodulation effects in conditions involving inadequate immune responses.

Study Information:

Afa K. Palu , Anne Hirazumi Kima, Brett J. Westa, Shixin Denga, Jarakae Jensena and Leland White. The effects of Morinda citrifolia L. (noni) on the immune system: Its molecular mechanisms of action  J Ethnopharmacol.  2008 February  12;115(3):502-6.
Noni Benefits Research Department, Tahitian Noni International Research Center, 737 East 1180 South, American Fork, UT 84003, USA.

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