Gregorio B. Begonia, Ph.D.
Interim Chair, Department of Biology
Professor of Biology


Tel. 601-979-3902
601-979-2586
Fax. (601) 979-2349
Email: gregorio.begonia@jsums.edu

School of Science and Technology
College of Science, Engineering and Technology

Environmental Toxicology

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Dr. Paul Tchounwou

Growing public awareness of the potential risks to humans from toxic chemicals in the environment has generated demand for new methods for toxicity assessment and rational means for estimating health risk. Many diseases have been linked to environmental chemicals and their effects appear to be complex due to the multigenic nature of risk factors. Low level exposures to environmental chemicals such as metal ions, food additives, and pesticides are essentially unavoidable. Several of these chemicals are known to cause tissue injury and cancer under specific exposure conditions.

The primary research focus in Dr. Tchounwou’s laboratory has been to elucidate the mechanisms of the toxic action of these compounds. At the cellular and molecular levels, and to utilize the knowledge gained to recommend cost-effective control and prevention strategies. Over the years, his research group has secured external funds from the Department of Education, the National Institutes of Health (NIH), the U.S. Department of the Army, the U.S. Department of Energy, and the U.S. Environmental Protection Agency (EPA), and has applied basic concepts and principles in molecular biology, genetics, physiology, pharmacology and toxicology to study the molecular events leading to toxicity, mutagenesis and carcinogenesis.