Links information on experimental teratogenic agents with the congenital defects in human beings.

This multi-author work deals with the practical aspects of teratogens - chemicals which cause birth defects. It is designed for use as a unique guide to these chemicals in which one can find all relevant information. The issues covered include: how to obtain information about the teratogenic potential of chemicals; teratogenic chemicals in undergraduate chemistry laboratories; safe handling of teratogenic chemicals; teratogenicity of pesticides and other pollutants in the environment; occupational exposure and pregnancy outcome; identification and prevention of reproductive hazards in industry; and the long-term effects of chemicals on the developing brain. A list of approximately 5,000 chemicals known to cause reproductive effects is given. A comprehensive bibliography is included with each chapter providing up-to-date references for more in-depth coverage. The monograph will be of interest to academic and industrial chemists, health professionals, as well as both undergraduate and graduate students in health and related sciences.

The study of birth defects has assumed an importance even greater now than in the past because mortality rates attributed to congenital anomalies have declined far less than those for other causes of death, such as infectious and nutritional diseases. It is estimated that as many as 50% of all pregnancies terminate as miscarriages. In the majority of cases this is the result of faulty development. Major congenital malformations are found in at least 2% of all liveborn infants, and 22% of all stillbirths and infant deaths are associated with severe congenital anomalies. Teratological studies of an experimental nature are neither ethical nor justifiable in humans. Numerous investigations have been carried out in laboratory animals and other experimental models in order to improve our understanding of abnormal intra-uterine development. In less than two decades the field of experimental teratology has advanced phenomenally. As a result of the wide range of information that is now accumulating, it has become possible to obtain an insight into the causes, mechanisms and prevention of birth defects. However, considerable work will be needed before these problems can be resolved. This book brings together some of the more recent and important research findings related to the mechanisms and pathogenesis of abnormal develop ment. It is not only a documentation of the latest experimental work, but it also points out future directions that seem productive and challenging.

Teratogens Chemicals Which Cause Birth Defects, 2nd Revised Edition is a collection of papers that discusses the practical aspect of teratogens, particularly regarding information on the teratogenic potential of chemicals. This book describes the principles and mechanism of teratogenesis, including the initiating mechanisms during the subcellular or molecular level and the role of bio-activation in teratogenesis. Investigations have been done on the relationship between spontaneous abortion in women exposed to organic solvents, antineoplastic agents, and chemicals in plastics. Other studies also show that teratogenicity depends in part on enzymatic bio-activation to an embryotoxic reactive intermediate. This text also explains the legal and ethical aspects of fetal protection policies with emphasis on fetal protection. Protection to expecting women extends to pregnant students exposed to teratogenic chemicals in chemistry laboratories. The book explains how and where to get information about the teratogenic potential of chemicals and how to properly handle these chemicals in the laboratory. The book also provides a list from RTECs of toxic chemicals which can cause reproductive effects. This book can prove useful for chemists, pharmacologists, obstetricians, gynecologists, and practitioners of general medicine.

The resolution of links between exposure to components of our complex environmental and causation of reproductive effects in the population constitutes an important problem in the field of toxicology. The focus of this volume is developmental toxicology, which represents one aspect of reproductive toxicology dealing with the study of adverse effects on the developing conceptus. Developmental toxicology, which includes teratogenesis as one of its manifesta tions, provides a fertile field for research in several basic and clinical disciplines; this field also receives input from several disoiplines such as developmental and molecu lar biology, pathology, pharmacology and toxicology, pediatrics and neonatology, and epidemiology. More recently we h~ve seen an emergence of interest in other fields such as perinatal physiology and postnatal behavior which have now become incorporated into the mainstream of research in this discipline. The present volume is an effort to provide a sampling of concepts currently under active investigation in several of the above fields. The authors have endeavored to provide up-to-date in formation on the following topics: detection and analysis of potential hazards to the conceptus in the workplace, pharmacokinetic aspects of the maternal/placental! fetal complex and its relationship to human birth defects, and probable mechanisms of teratogenesis as uncovered in certain well-defined situations. Also included are summaries of newer investigations on the emerging field of postnatal functional evaluations, i. e. , adverse effects on adult activities resultant from in utero exposure to toxic substances.

"This new edition will continue to serve as a reference for use by clinical and research geneticists, teratologists, obstetricians, and pediatricians."--BOOK JACKET.

'The Oxford Handbook of Externalizing Spectrum Disorders' is the first book of its kind to capture the developmental psychopathology of externalizing spectrum disorders by examining causal factors across levels of analysis and developmental epochs, while departing from the categorical perspective.