XI Biennial Meeting of the Society for Free Radical Research International, Jul. 16-20, 2002
Protective Effects of Morinda citrifolia (Noni) on Plasma SAR and LPO in Current Smokers
Wang, M-Y., Cheerva, A., Su, C., Jensen, J., Nowicki, D., Anderson, G., Jensen, S., Fritz, J.W.

In this study, the authors examined the protective effects of Tahitian Noni® Juice on plasma superoxide anion radicals (SAR) and lipid hydroperoxide (LPO) in current smokers. These two compounds, or their byproducts, are deleterious to human health, and are known to increase in smokers. A one-month randomized, double blinded, placebo-controlled clinical trial (neither the subjects nor experimenter knew who was receiving the test material or the placebo), was carried out. Sixty-eight subjects were supplemented with two ounces of Tahitian Noni® Juice or placebo twice a day for 30 days. There was no effect on plasma SAR or LPO levels in the placebo group. However, the SAR and LPO levels in the Tahtian Noni® Juice group showed a 27% reduction (p<0.05), and 23% (p=0.05) reduction, respectively. The “p=<0.05” means that the probability of getting different results in a duplicate test would be no greater than 5%. The results indicate that Tahitian Noni brand Juice may protect individuals from oxidative damage induced by cigarette smoke, and therefore may help to reduce smoking-related cancer risk.