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William Slikker, Jr., Ph.D., Director, Division of Neurotoxicology, FDA, National Center for Toxicological Research

University of California, Santa Barbara, B.A., 1972, Biology
University of California, Santa Barbara, M.A., 1972, Biological Sciences
University of California, Davis, Ph.D., 1978, Pharmacology & Toxicology

Experience:

  • Chief, Pharmacodynamics Branch, Division of Reproductive and Developmental Toxicology, NCTR/FDA (1980-1990). Began development of the multidisciplinary team approach to solve toxicological problems and recruited research team members to enhance NCTR's neurotoxicological research and assessment capability.
  • Acting Director, Division of Reproductive and Developmental Toxicology, NCTR/FDA (1990-1991). Developed and published quantitative risk assessment approaches for non-cancer endpoints.
  • Acting Director, Division of Neurotoxicology, NCTR/FDA (1992-1993). Continued to recruit and focus the efforts of the multidisciplinary research staff to address FDA's needs in neurotoxicity risk assessment.
  • Director, Division of Neurotoxicology, NCTR/FDA (1993-present). Articulated via national/international presentations, workshops and peer reviewed publications biologically-based, quantitative risk assessment approaches for neurotoxicity risk assessment.

Honors:

  • Member of the Program Committee, American Society for Pharmacology and Experimental Therapeutics, (2000 to present)
  • Member, Scientific Advisory Panel, FIFRA/USEPA (1998-1999), Retrospective Analysis of Developmental Neurotoxicity Studies and FQPA, 10X Safety Factor Update.
  • Member of the Task Force on Risk Assessment (1996-1998) and Continuing Education Committee, Society of Toxicology, (1997-1999).
  • Teratology Society: Councilor, 1995-1998; Chairperson, Publication Committee, 1998-2000, Vice President elect, 2000-present.
  • Neurotoxicology Specialty Section, President, 1995-1996, Society of Toxicology
  • Member of the editorial board for Reproductive Toxicology (1997-present) and Neurotoxicology and Teratology (1996-1999).
  • Associate editor for NeuroToxicology (1994 to present).
  • Associate editor for Toxicological Sciences (1999-present).

Current Primary Research Interests: Neurotoxicology/Neuroprotection, Developmental Toxicology and Risk Assessment.

  • Development and validation of animal models to predict human neurotoxicity and developmental toxicity.
  • Development and validation of neurohistological, neurobiological, neurochemical and behavioral methods to determine biomarkers of neurotoxicity.
  • Development and validation of quantitative risk assessment models and procedures to reduce the uncertainty of risk assessment.
  • Development of hypotheses to define the mechanisms of toxicity and approaches to neuroprotection for substituted amphetamines, excitotoxicants and metabolic inhibitors.

Most Recent Publications (Selected from over 235 publications):

  • Bowyer, J.F., Newport, G.D., Slikker W. Jr., Gough, B., Ferguson, S.A. and Tor-Agbidye, J. An evaluation of l-ephedrine neurotoxicity with respect to hyperthermia and caudate/putamen microdialysate levels of ephedrine, dopamine, serotonin, and glutamate. Toxicol. Sci., 55:133-142, 2000.
  • Imam, S.Z., Crow, J.P., Islam, F., Slikker, W. and Ali, S.F. Methamphetamine generates peroxynitrite and produce dopaminergic neurotoxicity in mice: protective effects of peroxynitrite scavenger FeTMPyP. Brain Research, 837(1-2):15-21, 1999.
  • Imam, S.Z., Newport, G.D., Islam, F., Slikker, W. Jr., and Ali, S.F. Selenium, an antioxidant, protects against methamphetamine-induced dopaminergic neurotoxicity. Brain Res. 818:575-578, 1999.
  • Lipe, G.W., Duhart, H.L., Newport, G.D., Slikker, W. Jr., and Ali, S.F. Effects of manganese on the concentration of amino acids in different regions of the rat brain. J. Environ. Sci. & Health, 34:119-132, 1999.
  • Patterson, T.A., Binienda, Z.K., Newport, G.D., Lipe, G.W., Gillam, M.P., Slikker, Jr., W., and Sandberg, J.A. Transplacental pharmacokinetics and fetal distribution of 2’,3’-didehydro-3’-deoxythymidine (d4T) and its metabolites in late-term rhesus macaques. Teratology. 62:93-99, 2000.
  • Patterson, T.A., Schmued, L.C., Sandberg, J.A. and Slikker, W. Temporal development of 2',3'-dideoxyinosine-(DDI) induced peripheral myelinopathy. Neurotoxicology and Teratology. 22:429-434, 2000.
  • Poirier, M., Patterson, T.A., Slikker, W. and Olivero, O. Incorporation of 3'-azido-3'deoxythymidine (AZT) into fetal DNA, and fetal tissue distribution of drug, after infusion of pregnant late-term rhesus macaques with a human-equivalent AZT dose. Journal of Acquired Deficiency Syndromes, 22:477-483, 1999.
  • Schmued, L.C. and Slikker, W. Black-gold: A simple, high resolution histochemical label for normal and pathological myelin in brain tissue sections. Brain Research, 837(1-2):289-297, 1999.
  • Schmued, L., Slikker Jr., W., Clausing, P. and Bowyer, J.F. d-Fenfluramine produces neuronal degeneration in localized regions of the cortex, thalamus, and cerebellum of the rat. Toxicol. Sci. 48:100-106,1999.
  • Slikker, W. Risk assessment and neurotoxicology: Neurotoxicology in current protocols in toxicology. Current Protocols in Toxicology, (In Press).
  • Slikker, W., Jr., Beck, B.D., Cory-Slechta, D.A., Paule, M.G., Anger, W.K., and Bellinger, David.: Cognitive tests: interpretation for neurotoxicity. Accepted, Toxicol. Sci., 2000.
  • Slikker, W., Youdim, M., Palmer, E., Hall, E., Williams, C. and Trembly, B. The future of neuroprotection. Annals of the New York Academy of Sciences, (Eds. B. Trembly and W. Slikker, Jr.), pp 529-533, 1999.
  • Stewart, C.W. and Slikker, W. Hyperthermia-enhanced serotonin (5-HT) depletion resulting from d-Fenfluarmine (d-Fen) exposure does not evoke a glial-cell response in the central nervous system of rats. Brain Research, 839:279-282,1999.
  • Wang, G.J., Schmued, L.C., Andrews, A.M, Scallet, A.C., Slikker, W., Jr., and Binienda, Z. Systemic administration of domoic acid-induced spinal cord lesions in neonatal rats. The Journal of Spinal Cord Medicine, 23:31-39,2000
  • Yu, X., Imam, S. Z., Newport, G. D., Slikker, W. Jr. and Ali, S. F. Ibogaine blocked methamphetamine-induced and induction of heat shock protein in mice. Brain Res., 823:213-216, 1999.

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