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Biol Pharm Bull. 2019;42(3):496-500. doi: 10.1248/bpb.b18-00480.

Effects of Morinda citrifolia on Rheumatoid Arthritis in SKG Mice.

Author information

1
Department of Medical Pharmaceutics, Graduate School of Medicine and Pharmaceutical Science for Research, University of Toyama.
2
Centre for Agro-Based Industry.
3
Department of Pathology, School of Medicine, Shinshu University.

Abstract

Morinda citrifolia L., known as noni, originated from Indonesia exhibits various pharmacological activities including anti-inflammatory properties. However, the validity of noni fruit juice as a treatment for rheumatoid arthritis (RA), an autoimmune disorder, has not been confirmed yet. Therefore, the main purpose of this research was to evaluate the efficacy of noni fruit juice (INFJ) made in Indonesia using SKG mice as an animal model of RA, which shows the resembling characteristics of human RA patients. Furthermore, the safety of INFJ was examined by repeated dose experiments in mice. INFJ was mixed with water at 50% and administered to SKG mice sensitized with mannan, free access for 4 weeks. Arthritis scores of fore- and hind-leg joints were measured and the joints were histopathologically examined. The sub-acute and sub-chronic toxicities of INFJ were evaluated using BALB/c mice. The arthritic scores were significantly lower from the 7 d after sensitization in the INFJ group than the control group. Histopathological examinations of the joints revealed inhibition of severity of RA. In both toxicity studies, INFJ did not show any toxicities. INFJ exhibited anti-arthritic activity in arthritic and histopathological examinations of the joints in SKG mice. Present study was the first report where noni juice may be effective against RA. The dose of noni juice showing efficacy against RA was confirmed safe from repeated dose studies in mice.

KEYWORDS:

Morinda citrifolia; SKG mouse; arthritis; noni; rheumatoid; safety

PMID:
30828080
DOI:
10.1248/bpb.b18-00480
[Indexed for MEDLINE]
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