This timely resource offers extensive discussions on the pharmacological, environmental, endocrinological, and natural factors that alter reproductive or developmental processes-elucidating the effects of toxicants on mechanisms of reproduction. Describing biological actions common to both genders as well as gender-specific processes, Reproductive and Developmental Toxicology -provides an overview of the basic biology and physiology of organ systems affected by toxicants -furnishes detailed examples of developmental toxicology -analyzes germ cell toxicity and infertility -covers the developmental effects of neurotoxicity -considers periods of exposure and long-term toxicological consequences -explains how gonadal processes may be susceptible to toxicants in other reproductive organ systems -and more! With over 3700 bibliographic citations and more than 100 photographs, drawings, and tables, Reproductive and Developmental Toxicology is a useful reference for toxicologists; reproductive, developmental, cell, and molecular biologists; endocrinologists; biochemists; obstetricians/gynecologists; pediatricians; pharmacists and pharmacologists; physiologists; geneticists; poison control specialists; and upper-level undergraduate, graduate, and medical school students in these disciplines.

Current molecular understanding of estrogen action has greatly profited from advances in molecular cell biology. These advances, and their implications for clinical use, were discussed by leading researchers from industry and academia during an international symposium held in Berlin, 1-3 March 2006 and are featured in this volume.

From our current knowledge, it is obvious that estrogen action in volves more than reproduction and fertility. Rather, estrogens affect and influence a number of other organ systems such as the immune, cardiovascular and central nervous system as well as the gastrointes tinal tract, urinary tract and skeleton. The importance of estrogens and estrogen receptor activity is appreciated from the spectrum of significant physiological dysfunctions that occur when there is a loss The participants of the workshop VI Preface of the hormone or the receptor activity. Loss of estrogen, however (for instance during menopause), occurs with time and results in a variety of clinical conditions. We know that the developmental loss of estrogen, as seen in clinical cases of aromatase gene mutations and experimental models, has dramatic effects in both men and women alike. The evidence that these effects are mediated through the estrogen receptor(s) is based on similar but not always identical phenotypes as observed in experimental animal models of estrogen receptor mutations as well as the single clinical case of an estrogen receptor alpha mutant patient. Developing an understanding of the spectrum of estrogen in a variety of tissues related to the condition of estrogen loss is a major and highly active clinical as well as basic scientific research area. Following the discovery of a second estrogen receptor and possible receptor ligand-independent activity as well as the genomic and non genomic actions of estrogen, it is clear that the mechanisms of the effects of estrogen are multifaceted.

The multiple actions of estrogens on different cell types have not only intrigued endocrinology researchers but also inspired the development of selective estrogen receptor modulators, or SERMs, that modulate estrogen signaling in a cell type-specific manner. Current molecular understanding of estrogen action has greatly profited from advances in molecular cell biology to dissect the mechanisms of estrogen-regulated gene expression in target cells, from in vivo analyses using genetic models deficient in estrogen signaling and from synthetic estrogen receptor ligands with isoform- or pathway-selective activity. These advances, and their implications for clinical use, were discussed by leading researchers from industry and academia during an international symposium held in Berlin, 1-3 March 2006.