Determinative Mechanisms In Early Development

Current Topics in Developmental Biology

First multi-year cumulation covers six years: 1965-70.

Synthetic Polypeptides as Antigens is the first volume to give a comprehensive treatment under one cover of the various techniques used for synthesizing peptides by the solid phase approach, for coupling them to carrier molecules and analyzing their immunochemical activity by a variety of immunoassays. This book also describes methods for analyzing the antigenic structure of proteins and predicting the location of their antigenic sites. Recent advances in the detection of gene products with antipeptide antibodies, and the still controversial use of synthetic peptides as vaccines are also described. The book provides: - detailed descriptions of procedures - extensive bibliography - detailed analysis of the structural basis of antigenicity in proteins Synthetic Polypeptides as Antigens is intended for researchers and graduate students in molecular biology, protein structure, immunology, virology, and microbiology. Those using synthetic peptides as immunological probes will find this a most useful book, as will those wishing to overcome the difficulties of achieving antigenic mimicry by synthesis.

"Education is often seen as a fundamental means to improve economic prospects for individuals from low income settings. However, even with increased emphasis on basic education for all, many individuals fail to achieve basic skills to succeed in life. The book presents evidence that one core reason is that by the time a child is old enough to attend school, there is already a wide disparity in cognitive skills and in emotional and behavioral development among children from households of different socioeconomic backgrounds. Low levels of cognitive development in early childhood strongly correlate with low socio-economic status (as measured by wealth and parental education) as well as malnutrition. These disadvantages are often exacerbated by economic crises. Fortunately, however, as documented in this volume, there are programs that have proven effective in promoting a child's development through caregiver-child interaction and stimulation, and with well designed preschool programs. While preschool programs currently cover a modest share of low income children, expansion of such services to at risk populations is a cost-effective means of improving overall educational achievement. Thus, focused preschool programs can serve as a key investment in a strategy to reduce the transmission of poverty from poor parents to their children."

No field of contemporary biomedical science has been more revolutionized by the techniques of molecular biology than developmental biology. This is an outstanding concise introduction to developmental biology that takes a contemporary approach to describing the complex process that transforms an egg into an adult organism. The book features exceptionally clear two-color illustrations, and is designed for use in both undergraduate and graduate level courses. The book is especially noteworthy for its treatment of development in model organisms, whose contributions to developmental biology were recognized in the 1995 Nobel Prize for physiology and medicine.

Today's biodiversity is the spectacular product of hundreds of millions of years of evolution. Understanding how this diversity of living organisms appeared is one of the most intriguing and challenging question in biology. Because organismal morphology is established during embryonic development, and because morphological traits diversified from ancestral forms during evolution, it can be inferred that changes in the mechanisms controlling embryonic development are instrumental for morphological evolution. This syllogism lies at the very heart of a new discipline called Evo-Devo which is centered in the identification of the cellular and genetic mechanisms that, through modifications in developmental programmes, were at the base of morphological innovations during evolution. After the discovery of the broad conservation of gene content and regulatory networks in the animal kingdom, as well as in plants, Evo-Devo is orienting towards the study of differences through experimental and functional approaches. Given the wide range of species, gene families, and developmental processes considered, a concerted effort is still required to shed light on the genetic, cellular and molecular mechanisms involved in phenotypic evolution. It is a particularly exciting time for this field of evolutionary developmental biology, as the advent of novel imaging, genome editing and sequencing technologies allows the study of almost any organism in ways that were unthinkable only a few years ago. Therefore, the aim of this Frontiers Research Topic is to gather an original collection of experimental approaches, concepts and hypotheses reflecting the current diversity of the Evo-Devo field. We have organized the articles according to the mechanistic depth with which they tackle specific evolutionary issues. Hence, comparisons of expression patterns have been grouped in Chapter 1, changes in regulatory interactions and gene networks are presented in Chapter 2, while Chapter 3 focuses on the evolution of developmental processes and biological patterns.

This book addresses possible analogies between cancer and developmental biology. An international group of experts provides a multidisciplinary approach, allowing biological or clinical scientists involved with cancer research to integrate specific information from diverse areas. Five concepts of cancer are presented, and developmental biology is reviewed at five levels. These are integrated in discussions of failure in organisation as a basis of cancer and its control. The book will be a valuable reference for both newcomers as well as experienced biological and clinical scientists. Features

An integrated reference which could form the basis for advanced courses on development or become a resource for individuals teaching basic courses. Following an introduction by the volume editors, the 11 chapters represent 11 different systems, arranged phylogenetically, beginning with prokaryotic s

International Review of Cytology

Volume 3 of Advances in Developmental Biology and Biochemistry consists of five chapters that review specific aspects of mammalian, fly, and ascidian development. In Chapter 1, J. Campos-Ortega discusses mechanisms of neurogenesis in Drosophila, with special attention given to the process of separation of epidermal and neural progenitor cells. In Chapter 2, D. Rappolee and Z. Werb discuss the role of growth factors in early mammalian embryos and compare genes used in mouse with those used in Xenopus and chick. In Chapter 3, E. Linney and A.-S. LaMantia discuss the range of malformations resulting from retinoid teratogenesis, the molecular biology of retinoids, the use of transgenic mice to study retinoid signaling, and differentiation of the CNS in the context of retinoid signaling. In Chapter 4, E. Gavis and R. Lehmann discuss pathways and components involved in RNA localization and targeting in Drosophila oocytes. In Chapter 5, W. Jeffery discusses the use of actin as a tissue-specific marker in studies of ascidian development and evolution

The fascination of the Annelida to scientists lies in the beauty of their structures and the functionality of their body plan, the tremendous adaptive radiation which has made it possible for these animals to colonize almost all marine, limnic and terrestrial biotopes. In doing so they have evolved a great variety of life forms, and their reproduction and development are correspondingly diverse, with many modes and patterns unique in the animal kingdom. In this special volume recent progress in this broad research area is presented by 26 specialists, in general through surveys or treatments of selected examples. Some of them review important annelid taxa such as the Nereididae, Syllidae, Spionidae, Cirratulidae, Clitellata, and Pogonophora; others analyse reproductive and developmental structures and phenomena in annelids, e.g. segmental organs, sex pheromones, oogenesis, mating systems, sperm types, life cycles, larval settlement, cleavage and symmetry of embryos, or discuss controversial approaches to annelid systematics. The book will be of interest to all zoologists who work with annelids as well as to embryologists and other researchers in reproductive biology.

Advances in Morphogenesis, Volume 3 covers the significant advances in various aspects of morphogenesis. This volume is divided into nine chapters that specifically consider the histochemical, morphological, and biochemical aspects of cell growth and development in various animal groups. The opening chapter deals with the different mechanisms of determination in the development of the gastropods. The next chapters present the model system for biochemical of morphological differentiation, including non-filamentous aquatic fungi and sea urchin. These topics are followed by discussions of the results obtained from chick embryo erythrocyte during the entire prenatal period, with emphasis on the problems of autodifferentiation of chick embryo blood corpuscles. A chapter examines the role of DNA, RNA, and sulfhydryl groups in morphogenesis in amphibians and regeneration in the unicellular alga, Acetabularia mediterranea. The concluding chapters describe the relationship between cleavage, relative duration of developmental periods, and cell differentiation in stages of embryonic development. These chapters also look into the positive evidence concerning the morphogenetic role of the egg cortex of the amphibians. This book is directed primarily to developmental biologists.