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Abstract Title:

Amelioration of experimental autoimmune encephalomyelitis in Lewis rats treated with fucoidan.

Abstract Source:

Phytother Res. 2009 Aug 4. PMID: 19655293

Abstract Author(s):

Heechul Kim, Changjong Moon, Eun-jin Park, Youngheun Jee, Meejung Ahn, Myung Bok Wie, Taekyun Shin

Abstract:

We study examined whether fucoidan affected the clinical symptoms of experimental autoimmune encephalomyelitis (EAE) in rats. EAE was induced in Lewis rats that were immunized with guinea-pig myelin basic protein (MBP) and complete Freund's adjuvant. Fucoidan (50 mg/kg, daily) was administered to rats with EAE intraperitoneally, either in the EAE induction phase from either 1 day before immunization to day 7 post-immunization (PI), or the effector phase from day 8 to 14 PI, to test which phase of rat EAE is affected by fucoidan treatment.The onset, severity and duration of EAE paralysis in the fucoidan-treated group in the days 8-14 PI-treated rats, but not in days -1-7 PI-treated rats, were significantly delayed, suppressed and reduced, respectively, compared with the vehicle-treated controls. Treatment with fucoidan reduced the encephalitogenic response and TNF-alpha production during EAE. Moreover, the clinical amelioration coincided with decreased infiltration of inflammatory cells in the EAE-affected spinal cord. The ameliorative effect of fucoidan on clinical paralysis in EAE-affected rats may be mediated, in part, by the suppression of the autoreactive T cell response and inflammatory cytokine production. Copyright (c) 2009 John Wiley & Sons, Ltd.

Study Type : Animal Study

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Sayer Ji
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