James A Dykens

Summary

Affiliation: Pfizer Global Research and Development
Country: USA

Publications

  1. ncbi The significance of mitochondrial toxicity testing in drug development
    James A Dykens
    Drug Safety Research and Development, Pfizer Inc, 10646 Science Center Drive, San Diego, CA 92121, United States
    Drug Discov Today 12:777-85. 2007
  2. ncbi Strategies to reduce late-stage drug attrition due to mitochondrial toxicity
    James A Dykens
    Pfizer DSRD, 10646 Science Center Drive, San Diego, CA 92121, USA
    Expert Rev Mol Diagn 7:161-75. 2007
  3. ncbi Biguanide-induced mitochondrial dysfunction yields increased lactate production and cytotoxicity of aerobically-poised HepG2 cells and human hepatocytes in vitro
    James A Dykens
    Drug Safety Research and Development, Pfizer, Inc, Ramsgate Rd Sandwich, CT13 9NJ, UK
    Toxicol Appl Pharmacol 233:203-10. 2008
  4. ncbi A current practice for predicting ocular toxicity of systemically delivered drugs
    Chris J Somps
    Drug Safety Research and Development, Pfizer Global R and D, Groton, CT 06340, USA
    Cutan Ocul Toxicol 28:1-18. 2009
  5. ncbi Circumventing the Crabtree effect: replacing media glucose with galactose increases susceptibility of HepG2 cells to mitochondrial toxicants
    Lisa D Marroquin
    Pfizer DSRD, San Diego, CA 92121, USA
    Toxicol Sci 97:539-47. 2007
  6. ncbi Development of 17alpha-estradiol as a neuroprotective therapeutic agent: rationale and results from a phase I clinical study
    James A Dykens
    MIGENIX Corporation, 12780 High Bluff Dr, San Diego, CA 92130, USA
    Ann N Y Acad Sci 1052:116-35. 2005
  7. ncbi Novel mechanisms for estrogen-induced neuroprotection
    Meharvan Singh
    Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
    Exp Biol Med (Maywood) 231:514-21. 2006
  8. ncbi Mitochondrial mechanisms of estrogen neuroprotection
    James W Simpkins
    Department of Pharmacology and Neuroscience, Institute for Aging and Alzheimer s Disease Research, University of North Texas Health Science Center, 3500 Camp Bowie Boul, Fort Worth, TX 76102, USA
    Brain Res Rev 57:421-30. 2008
  9. ncbi Mitochondria play a central role in estrogen-induced neuroprotection
    James W Simpkins
    Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, TX 76102, USA
    Curr Drug Targets CNS Neurol Disord 4:69-83. 2005
  10. ncbi Oxidative damage to human lens epithelial cells in culture: estrogen protection of mitochondrial potential, ATP, and cell viability
    Xiaofei Wang
    Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas 76107, USA
    Invest Ophthalmol Vis Sci 44:2067-75. 2003

Collaborators

Detail Information

Publications10

  1. ncbi The significance of mitochondrial toxicity testing in drug development
    James A Dykens
    Drug Safety Research and Development, Pfizer Inc, 10646 Science Center Drive, San Diego, CA 92121, United States
    Drug Discov Today 12:777-85. 2007
    ....
  2. ncbi Strategies to reduce late-stage drug attrition due to mitochondrial toxicity
    James A Dykens
    Pfizer DSRD, 10646 Science Center Drive, San Diego, CA 92121, USA
    Expert Rev Mol Diagn 7:161-75. 2007
    ..This dichotomy encourages optimism that efficacy can be disassociated from mitochondrial toxicity, resulting in safer drugs in the future...
  3. ncbi Biguanide-induced mitochondrial dysfunction yields increased lactate production and cytotoxicity of aerobically-poised HepG2 cells and human hepatocytes in vitro
    James A Dykens
    Drug Safety Research and Development, Pfizer, Inc, Ramsgate Rd Sandwich, CT13 9NJ, UK
    Toxicol Appl Pharmacol 233:203-10. 2008
    ..Indeed, the desired clinical outcome, viz., decreased blood glucose, could be due to increased glucose uptake and glycolytic flux in response to drug-induced mitochondrial dysfunction...
  4. ncbi A current practice for predicting ocular toxicity of systemically delivered drugs
    Chris J Somps
    Drug Safety Research and Development, Pfizer Global R and D, Groton, CT 06340, USA
    Cutan Ocul Toxicol 28:1-18. 2009
    ..This review summarizes a current practice for minimizing the potential for systemically administered, new medicines to cause adverse effects in the eye...
  5. ncbi Circumventing the Crabtree effect: replacing media glucose with galactose increases susceptibility of HepG2 cells to mitochondrial toxicants
    Lisa D Marroquin
    Pfizer DSRD, San Diego, CA 92121, USA
    Toxicol Sci 97:539-47. 2007
    ..Some drugs were equally toxic to both glucose- and galactose-grown cells, suggesting that mitochondrial impairment is likely secondary to other cytotoxic mechanisms...
  6. ncbi Development of 17alpha-estradiol as a neuroprotective therapeutic agent: rationale and results from a phase I clinical study
    James A Dykens
    MIGENIX Corporation, 12780 High Bluff Dr, San Diego, CA 92130, USA
    Ann N Y Acad Sci 1052:116-35. 2005
    ..Positive safety and pharmacokinetic data from a successful phase I clinical study with oral 17alpha-E2 (sodium sulfate conjugate) are presented here, and several options for its future clinical assessment are discussed...
  7. ncbi Novel mechanisms for estrogen-induced neuroprotection
    Meharvan Singh
    Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
    Exp Biol Med (Maywood) 231:514-21. 2006
    ..On the basis of this evidence, we discuss the clinical applicability of estrogens in treating various age-related disorders, including Alzheimer disease and stroke, and identify the caveats that must be considered...
  8. ncbi Mitochondrial mechanisms of estrogen neuroprotection
    James W Simpkins
    Department of Pharmacology and Neuroscience, Institute for Aging and Alzheimer s Disease Research, University of North Texas Health Science Center, 3500 Camp Bowie Boul, Fort Worth, TX 76102, USA
    Brain Res Rev 57:421-30. 2008
    ....
  9. ncbi Mitochondria play a central role in estrogen-induced neuroprotection
    James W Simpkins
    Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, TX 76102, USA
    Curr Drug Targets CNS Neurol Disord 4:69-83. 2005
    ....
  10. ncbi Oxidative damage to human lens epithelial cells in culture: estrogen protection of mitochondrial potential, ATP, and cell viability
    Xiaofei Wang
    Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas 76107, USA
    Invest Ophthalmol Vis Sci 44:2067-75. 2003
    ....