Antinucleolar Autoantibody Induced by Mercuric Chloride in Mice: Does Sodium Selenite Inhibit Autoantibody Production?

Antioxidants inhibit mercuric chloride-induced early vasculitis.

In the Brown Norway (BN) rat, mercuric chloride (HgCl(2)) induces a T(h)2-dominated autoimmune syndrome which includes an early phase of mast cell-dependent vasculitis. We have shown in vitro that oxidative stress up-regulates IL-4 in mast cells and predisposes to degranulation. The aim of this study was to determine whether administration of antioxidants inhibits HgCl(2)-induced early vasculit...

Effect of Sodium Selenide on Renal Toxicity Induced By Mercuric Chloride in Rat

Background and Aims: Mercury, with its oxidative activity, causes damage to the antioxidant enzymes thus resulting in physiological disorders. Sodium selenide is an antioxidant that protects antioxidant enzymes. The aim of this study was to investigate the protective effect of sodium selenide on renal toxicity induced by mercuric chloride in rats. Materials and Methods: Animals were divided in...

Lupus Pristane-Induced Autoantibody Production in Fas and Fas Ligand Mutations Inhibit

Unexpected autoantibody production in membrane Ig-mu-deficient/lpr mice.

In the B lymphocyte lineage, Fas-mediated cell death is important in controlling activated mature cells, but little is known about possible functions at earlier developmental stages. In this study we found that in mice lacking the IgM transmembrane tail exons (muMT mice), in which B cell development is blocked at the pro-B stage, the absence of Fas or Fas ligand allows significant B cell develo...

Genetic studies in NZB mice. I. Spontaneous autoantibody production

The appearance of naturally occurring thymocytotoxic autoantibodies (NTA) and spontaneously produced antibodies to single-stranded DNA (ssDNA) was studied in NZB, and DBA/2 mice and their F1 and backcross progeny. NTA production was markedly decreased in males; however, castrated males produced quantities of NTA similar to those of females. Because the amount of NTA was influenced by sex hormon...