The therapeutic effect of intravenous immunoglobulins and vitamin C on the progression of experimental autoimmune myocarditis in the mouse.

Abstract:

BACKGROUND:The aim was to evaluate the efficacy of intravenous-immunoglobulin (IVIG) and vitamin C (VC) on the progression of experimental autoimmune myocarditis (EAM). MATERIAL/METHODS:Fifty-two Balb/c mice were randomized into six groups: blank, small-dosage VC, large-dosage VC, IVIG, IVIG+VC, and a control group. All mice were sacrificed 21 days later. The level of tumor necrosis factor alpha (TNF-alpha), the ratios of the heart, spleen, and kidney to body weight (C/W, S/W, K/W), and pathological changes in the hearts and spleens were evaluated. RESULTS:VC could extenuate inflammatory cell infiltration in the myocardium and calcification in the pericardium. IVIG or IVIG+VC could extenuate the pathological change more effectively. The C/W of each therapy group decreased significantly compared with that of control group. The TNF-alpha levels in the small- and large-dosage VC groups were a little lower than in the control group; the levels in the IVIG and IVIG+VC groups were significantly lower than in controls. Electron microscopic observation of the myocardium showed that VC could extenuate the damage to the myocardium. The myocardium in IVIG and IVIG+VC groups were almost normal. CONCLUSIONS:IVIG and vitamin C have some protective and therapeutic effect on the progression of EAM by decreasing pathological damage to the myocardium and depressing TNF-alpha production. Especially IVIG combined with vitamin C are more effective as they can stimulate the immune reaction and increase IgG deposition in the myocardium.

journal_name

Med Sci Monit

authors

Gong F,Hu Y,Chen L,Gu W

subject

Has Abstract

pub_date

2007-11-01 00:00:00

pages

BR240-246

issue

11

eissn

1234-1010

issn

1643-3750

pii

512822

journal_volume

13

pub_type

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