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Acrylamide alters neurofilament protein gene expression in rat brain.

Acrylamide, a prototype neurotoxin, alters neurofilament protein (NF) gene expression in rat brain. Levels of mRNA coding for neurofilament protein subunits NF-L, NF-M, and NF-H have been determined by Northern blot analysis using 32P-labeled cDNA probes. Acrylamide given acutely (100 mg/kg, single intraperitoneal injection) causes a selective increase in NF-M mRNA (approximately 50%) compared to controls. The expression of NF-L or NF-H mRNA is not affected by acrylamide. In contrast, chronic treatment with acrylamide [0.03% (w/v) in drinking water for 4 weeks] induces a modest but significant increase (approximately 22%) in NF-L mRNA compared to controls. Levels of NF-M, and NF-H mRNA are not altered by acrylamide treatment. The expression of beta-actin mRNA, an ubiquitous protein, is not affected by either treatment regimen of acrylamide. The results of this study show that acrylamide increases the expression of mRNA for NF protein subunits in rat brain. The increase of specific mRNA for NF subunits depends on the dose, duration and route of acrylamide administration.[1]

References

  1. Acrylamide alters neurofilament protein gene expression in rat brain. Endo, H., Kittur, S., Sabri, M.I. Neurochem. Res. (1994) [Pubmed]
 
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