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S B Hopf

Publications and source records attributed to S B Hopf.

2 recordsLinked to original sources

Educating educators in GLP documentation.

Professionals in academia usually are not trained in documenting their research activities to the extent and detail mandated under Good Laboratory Practice (GLP) regulations. To assist researchers at the University of Arizona in implementing a GLP program, the university's Quality Assurance Unit (QAU) has written procedures and checklists detailing various aspects of GLPs. Since a key to the successful implementation of GLPs is comprehensive documentation in laboratory notebooks of research activities, information and guidelines are provided in a checklist format. Training seminars are also provided to discuss the use of the checklists. Checklists in conjunction with training seminars provide an important mechanism to ensure that all appropriate information has been recorded for verifiable, reproducible, and traceable documentation of project study results.

Arizona

Experimental chelation therapy in chromium, lead, and boron intoxication with N-acetylcysteine and other compounds.

The usefulness of N-acetylcysteine (NAC) as a chelating agent was studied for the toxin potassium dichromate, lead tetraacetate, and boric acid. Mature Sprague-Dawley rats were intoxicated with these substances and placed in metabolic cages. Urinary excretion rates of intoxicant and total urine volume were determined during treatment with N-acetylcysteine, calcium EDTA, and/or dimercaptosuccinic acid, N-acetylcysteine proved to be the most effective agent at increasing the excretion of chromium and boron and was also able to reverse the oliguria associated with these toxins. Dimercaptosuccinic acid was most effective at the chelation of lead. NAC did not increase the excretion of lead. We conclude that NAC may be useful in intoxications due to chromate and borate and is effective at reversing the oliguria associated with these intoxicants.

Acetylcysteine