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Article Publish Status: FREE
Abstract Title:

Neurotoxic effects of postnatal thimerosal are mouse strain dependent.

Abstract Source:

Mol Psychiatry. 2004 Sep ;9(9):833-45. PMID: 15184908

Abstract Author(s):

M Hornig, D Chian, W I Lipkin

Article Affiliation:

M Hornig

Abstract:

The developing brain is uniquely susceptible to the neurotoxic hazard posed by mercurials. Host differences in maturation, metabolism, nutrition, sex, and autoimmunity influence outcomes. How population-based variability affects the safety of the ethylmercury-containing vaccine preservative, thimerosal, is unknown. Reported increases in the prevalence of autism, a highly heritable neuropsychiatric condition, are intensifying public focus on environmental exposures such as thimerosal. Immune profiles and family history in autism are frequently consistent with autoimmunity. We hypothesized that autoimmune propensity influences outcomes in mice following thimerosal challenges that mimic routine childhood immunizations. Autoimmune disease-sensitive SJL/J mice showed growth delay; reduced locomotion; exaggerated response to novelty; and densely packed, hyperchromic hippocampal neurons with altered glutamate receptors and transporters. Strains resistant to autoimmunity, C57BL/6J and BALB/cJ, were not susceptible. These findings implicate genetic influences and provide a model for investigating thimerosal-related neurotoxicity.

Study Type : Animal Study

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Sayer Ji
Founder of GreenMedInfo.com

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