In this timely monograph, the author summarizes the rapidly growing body of knowledge regarding nickel by providing a balanced discussion of its harmful and beneficial effects. Coverage includes a history of nickel; the chemistry of nickel, descriptions of the four known enzymes which contain nickel; and nickel metabolism in microbes, plants, and animals. Taken as a whole, Dr. Hausinger's work will highlight key features of this important element and help define future research.

There can be few elements with a biochemistry as coherent as that of sulfur. This important element is crucial to myriad aspects of metabo- lism, catalysis, and structure. The plurality of functions in which sulfur is involved derives squarely from the numerous oxidation states in which it may exist, some having great stability, some being capable of ready redox interconversions, and yet others having great instability. As a result, the flux of sulfur from the geosphere through the various kingdoms of life leaves few biochemical processes unaffected. Although there are large gaps in the...

In response to the worldwide health problems caused by nutritional zinc deficiency, coupled with the remarkable advances in our knowledge of zinc metabolism, the author has written this monograph on the clinical effects of this important mineral. Dr. Prasad focuses on biochemical aspects, but also includes chapters on toxicity and assessment techniques in order to provide clinicians who encounter zinc related problems in their practice with a practical reference source.