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Dr. John F. Bowyer
Research Pharmacologist
Affiliation Division of Neurotoxicology, NCTR
Office HFT-132
Email john.bowyer AT fda.hhs.gov
Website http://www.fda.gov/nctr/staff/bios-html/jbowyer.html
Phone 870-543-7194
Fax 870-543-7745
Mail National Center for Toxicological Research
3900 NCTR Drive
Jefferson, AR 72079-9502
 
 
Core Areas
  • Molecular Neurobiology
  • Molecular Neurotoxicology
Research Areas
I have been active in research related to the neurotoxicology of substituted amphetamines (amphetamine, methamphetamine, ecstasy, e.g.) and the role of catecholaminergic systems in neurotoxicity for over 20 years. This research has helped contributed to the further understanding of dopaminergic systems in the brain and how they are involved in neurotoxic insults. More, recent studies have focused on the characterization of the various aspects of the neurotoxicity produced by substituted amphetamines, which have previously been unknown or ignored by applying the techniques of immunohistochemistry, neurochemistry and gene expression to understand the mechanisms behind these neurotoxicities. As particularly related to Bioinformatics, my recent studies have applied the techniques of cDNA array technology (molecular biology) to determine how neurotoxic insults alter gene expression to find relevant biomarkers of neurotoxic insult and mechanisms involved in repair and adaptation to damage. The gene expression data generated by cDNA arrays is vast and amenable to bioinformatics processing.

Ongoing research involves the use of cDNA arrays to determine changes in gene expression that are related to regeneration of damaged terminals in the basal ganglia of rat brain. As well, research is planned to look at the overall gene expression changes resulting in a genetically mutant mouse deficient for the enzyme necessary for arylformamidase which is important in brain and immune function.

 
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This page was created on June 3, 2008.