Chemical Induction of Cancer: Structural Bases and Biological Mechanisms, Volume IIIC: Natural, Metal, Fiber, and Macromolecular Carcinogens covers structure-carcinogenicity relationships of carcinogenic mycotoxins, carcinogenic substances generated by plants, carcinogenic metals and metalloids, and foreign-body carcinogens. The book discusses the metabolism and mechanism of carcinogenic action, physicochemical properties, other biological activities (principally mutagenicity and teratogenicity), modification of carcinogenic activity, formation and environmental significance. The text also describes the carcinogenic water-soluble high polymers and explores the intriguing problems of the carcinogenic effect of osmotic imbalance in tissue microenvironment, as well as of spontaneous malignant transformation occurring in cell cultures in vitro. Studies on tumor induction and carcinogenesis modification by nonviral nucleic acids, by nucleases, proteases, histones, and by antigenic stimulation as well as by antibodies are also considered. The book further tackles tumor-released factors as possible modifiers of carcinogenesis. The text will prove invaluable to chemists and people involved in cancer research.

In the approach to the analysis of disease, including, of course, cancer, two major thrusts may be distinguished. These may be referred to, in shorthand, as agents and processes: the causative agents (chemical, microbial, physical, environmental, and psychosocial) and the organismic processes, initiated and furthered by the agents, culminating in observable pathology (at the macromolecular, cytological, histological, organ function, locomotor, and behavioral levels). The past 25 years, since the appearance of the first volume of the predecessor series (1) authored by the Editors of this present volume, have seen an impressive number of studies on chemicals (and other agents) as etiologic factors in the induction of cancer. The major emphasis has been on the discovery of many chemical carcinogens of widely different structures, their metabolism by various tissues and cells, and, in turn, their molecular-biochemical effects on the cells. This rapidly expanded body of information, as effectively covered in the predecessor volumes, is an excellent entree to the second half of the overall problem of chemical carcinogenesis, the processes. The active agents trigger a large array of molecular-biochemical alterations to which the target cells, target tissues, and target organisms respond in many select and common ways. This second major aspect of the induction of cancer by chemicals (and by other agents)- the sequence of cellular and tissue changes clearly relevant to cancer-remains the challenge for the future.

Covering some of the most important topics in modern toxicology, the Handbook of Human Toxicology is a unique and valuable addition to the current literature. It addresses issues, answers questions, and provides data related to. Within each of these five major sections are several carefully selected topics that reflect the current state of human to

Applied with success in a number of areas, QSAR studies have become particularly popular in the rational design of drugs and pesticides. Much has been published on the principles of QSAR in this area, but not on their application s to toxic chemicals. This book provides the first comprehensive, interdisciplinary presentation of QSAR studies on

Presents state-of-the-art regulatory cancer risk assessment models including a biologically based model for two-hit carcinogenesis and cell proliferation! This book comprehensively reviews the various roles of genetic toxicology in human cancer risk assessment conducted by United States and worldwide regulatory agencies-discussing hazard ide