DNA detectives

Article Abstract:

The group of X. Chris Le, an analytical chemist at the University of Alberta, Canada, has, in collaboration with Michael Weinfeld at the Cross Cancer Inst., Edmonton, developed an extremely sensitive method for measuring chromosome damage from low-dose environmental or clinical exposure. The method represents an improvement of 4-5 orders of magnitude over previously available assays. The method has advantages beyond sensitivity, not requiring digesting the DNA and being economical. It does require great expertise, however, involving skill in capillary electrophoresis.

Canada, Statistical Data Included, Usage, Equipment and supplies, Measurement, DNA damage, Electrophoresis, Genetics

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Nanotechnology: thinking small

Article Abstract:

Issues discussed concern the possible uses of nanotechnology for the environmental health sciences. Topics addressed include the history of nanotechnology, the technology's ability to manufacture compounds in an environmentally sound manner, and its use in DNA research.

Science and technology policy, Nanotechnology

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Tracking risk

Article Abstract:

Scientists assert that is difficult to to track specific environmental risk factors because disease patterns reflect mixed environmental hazards. Current studies examine the interaction between genes and the environment.

Diseases, Etiology (Medicine)

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