Biochemical Effects of Cadmium Exposure and the Potential Pharmacologic Significance of Cadmium Mediated Hydrolase Inhibition

Abstract

The objective of this research was to explore the possible existence of an adverse effect resulting from exposure to cadmium (Cd) within levels allowed or recommended to be "without adverse effect." The central hypothesis that we tested was that the exposure of Sprague-Dawley rat to Cd (2 mg CdC12/kg, administered i.p.) would reduce non-specific serum and tissue hydrolase activity enough to alter the metabolism of an ester compound like methylphenidate. The knowledge that metals affect the function of enzymes was the rationale behind an initial investigation attempting to identify an enzyme that could be used as a biomarker of Cd exposure. It was discovered that Cd was capable of reducing the activity of rat serum hydrolase. The hydrolases are ubiquitous enzymes that are known to be active participants in the hydrolysis of many foreign toxic and therapeutic compounds. However, the physiological role of the esterases is unclear.

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Document Details

Document Type
Technical Report
Publication Date
Apr 18, 1997
Accession Number
AD1011529

Entities

People

  • Darrell J. Nix

Organizations

  • Uniformed Services University of the Health Sciences

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DTIC Thesaurus Topics

  • Chemical Elements
  • Chemical Synthesis
  • Chemistry
  • Health Services
  • Organic Chemistry
  • Waste Disposal Facilities

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  • Cardiovascular Physiology
  • Molecular and Cellular Biochemistry
  • Neurotoxicology