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Abstract Title:

Therapeutic effect of EDTA in experimental model of multiple sclerosis.

Abstract Source:

Immunopharmacol Immunotoxicol. 2010 Jun;32(2):321-6. PMID: 20233106

Abstract Author(s):

G Mosayebi, D Haghmorad, S Namaki, A Ghazavi, P Ekhtiari, Abbas Mirshafiey

Article Affiliation:

Department of Immunology, Arak University of Medical Sciences, Arak, Iran.

Abstract:

Multiple sclerosis (MS) is a chronic, neurodegenerative disease that causes central nervous system (CNS) demyelination and affects approximately 2 million people worldwide. The aim of the present study was to test the therapeutic effect of ethylene diamine tetra acetic acid (EDTA) in an experimental model of MS. The experiment was done on male C57BL/6 mice aged 6-8 weeks. The experimental autoimmune encephalomyelitis (EAE) was induced using 250 microg of the MOG35-55 peptide emulsified in CFA and injected subcutaneously on day 0 over two flank areas. In addition, 250 ng of pertussis toxin in 400 microl PBS was injected i.p. on days 0 and 2. In the treatment group, EDTA was administered i.p. at a dose 75 mg/kg/day. The mice were sacrificed 21 days after EAE induction and blood samples were taken from their hearts. The brains of mice were removed for histological analysis and their isolated splenocytes were cultured. RESULTS: Our results showed that treatment with EDTA caused a significant delay in the time of onset and a significant reduction in severity of the EAE. Histological analysis indicated that there was not any plaque in the group of EDTA-treated mice whereas 5 +/- 1 plaques were detected in controls. The density of mononuclear infiltration in the CNS of EDTA-treated mice was lower than controls. In the group of EDTA-treated mice, using the FRAP test, total serum antioxidant power was high and significant in comparison to the controls. Moreover, the serum level of nitric oxide in the treatment group was significantly less than the control group, and, also, the levels of IFN-gamma in the cell culture supernatant of treated mice splenocytes was lower than control group. These data indicate that EDTA therapy can effectively attenuate EAE progression.

Study Type : Animal Study

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Sayer Ji
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