Macromolecules Regulating Growth and Development documents the proceedings of the 30th Symposium of the Society for Developmental Biology, held at the University of Washington in Seattle, June 17-19, 1971. The contributions made by researchers at the symposium are organized into three parts. Part I deals with regulatory factors in the selective growth of mammalian cells. It includes papers on the role of the cell surface in growth and transformation; the epidermal growth factor; and the role in regulation of tumor growth. Part II examines the formation and organization of plant cell walls and the plasma membrane. It presents studies on the origin and growth of cell surface components; synthesis and secretion of proteins in plant cells; and lipids and membrane structure. Part III deals with the organization and expression of genetic information. The contributions in this section include organization of DNA and proteins in mammalian chromosomes; total synthesis of transfer RNA genes; and biosynthesis of bacterial ribosomes.

The purpose of this volume is to review and discuss key growth factor systems that have been implicated in embryogenesis. Emphasis is placed on the insulin family of peptides, including insulin and the structurally and functionally related insulin-like growth factors. The initial chapters provide a review of basic topics, including developmental genetics, energy metabolism and hormonal signaling mechanisms, which are important prerequisites to the central theme that follows. The book concludes with a brief review of oncogene expression in early development; this new field has contributed significantly to our understanding of how mitogenic signals activate genetic elements responsible for embryonic growth and development. This book presents information important to cell biologists, endocrinologists, biological chemists, and developmental biologists.

The purpose of this volume is to review and discuss key growth factor systems that have been implicated in embryogenesis. Emphasis is placed on the insulin family of peptides, including insulin and the structurally and functionally related insulin-like growth factors. The initial chapters provide a review of basic topics, including developmental genetics, energy metabolism and hormonal signaling mechanisms, which are important prerequisites to the central theme that follows. The book concludes with a brief review of oncogene expression in early development; this new field has contributed significantly to our understanding of how mitogenic signals activate genetic elements responsible for embryonic growth and development. This book presents information important to cell biologists, endocrinologists, biological chemists, and developmental biologists.

Recent scientific breakthroughs, celebrity patient advocates, and conflicting religious beliefs have come together to bring the state of stem cell researchâ€"specifically embryonic stem cell researchâ€"into the political crosshairs. President Bush's watershed policy statement allows federal funding for embryonic stem cell research but only on a limited number of stem cell lines. Millions of Americans could be affected by the continuing political debate among policymakers and the public. Stem Cells and the Future of Regenerative Medicine provides a deeper exploration of the biological, ethical, and funding questions prompted by the therapeutic potential of undifferentiated human cells. In terms accessible to lay readers, the book summarizes what we know about adult and embryonic stem cells and discusses how to go about the transition from mouse studies to research that has therapeutic implications for people. Perhaps most important, Stem Cells and the Future of Regenerative Medicine also provides an overview of the moral and ethical problems that arise from the use of embryonic stem cells. This timely book compares the impact of public and private research funding and discusses approaches to appropriate research oversight. Based on the insights of leading scientists, ethicists, and other authorities, the book offers authoritative recommendations regarding the use of existing stem cell lines versus new lines in research, the important role of the federal government in this field of research, and other fundamental issues.

This volume describes culture media and solutions used in human ART; how they have been developed for in vitro human pre-implantation embryo development, the function and importance of the various components in media and solutions and how they interact, and how the systems in which these are used can influence outcomes. Chapters discuss inorganic solutes, energy substrates, amino acids, macromolecules, cytokines, growth factors, buffers, pH, osmolality, and the interaction of these parameters. The role of incubators and other physical factors are reviewed, along with the relevance and prospects of emerging technologies: morphokinetic analysis using time-lapse imaging and dynamic fluid incubation systems. Results of prospective randomized trials are emphasized to ascertain the added value of these techniques for selecting viable embryos. This comprehensive guide will be invaluable for embryologists, physicians and all personnel involved in the fluid products used in human ART seeking to optimize their successful use of these components.