Medicine and Health Sciences | Open Access Articles

Characterization Of Metal-Regulated Genes In Pseudomonas Fluorescens, Melanie Pearson

Honors Theses

One side effect of today's industrialized world is increased levels of heavy metals in the environment. Many of these metals are necessary for biological function as trace elements, but at higher concentrations are toxic. Other metals, such as cadmium, are not beneficial at any level, and have only deleterious effects on living organisms. Cadmium is primarily thought to interfere with normal biological function of proteins. Human exposure to cadmium appears to primarily damage the kidneys, but may also affect the liver, lungs, immune system, and central nervous system. Bacteria, however, have developed several methods for handling toxic heavy metals: cation …

Go to article

Effects Of Zinc On Glucose-6-Phosphate Dehydrogenase In Buffalo Rat Liver Cells, Bryan G. Sauer

Honors Theses

In recent years, interest has surfaced in the use of insulin-mimicking agents for diabetic therapies. Zinc has been shown to have insulin-like effects in vivo and in vitro but has never been studied for its ability to mimic insulin in the regulation of carbohydrate and fatty acid metabolism. Therefore, the author studied the effects of zinc on glucose-6-phosphate dehydrogenase (G6PDH), an enzyme stimulated by insulin that is imperative in both carbohydrate and fatty acid metabolism. Because G6PDH is highly regulated in liver cells, a stable rat liver cell line, Buffalo Rat Liver (BRL), was used. Endogenous G6PDH activity and G6PDH …

Go to article