Pharm Biol. 2010 Jul;48(7):724-31.
Immunostimulant activity of noni (Morinda citrifolia) on T and B lymphocytes.
Nayak S, Mengi S.

Hydroalcoholic and aqueous extracts of noni fruit significantly increased in vitro splenocyte proliferation. These extracts also increased cell-mediated immune response in vitro. The hydroalcoholic extract and one of its subfractions significantly increased the humoral immune response. These results demonstrate the cellular and humoral immunostimulant properties of noni fruit. (view original abstract at https://www.ncbi.nlm.nih.gov/pubmed/20645768).