Cell-cell and cell-matrix interactions are of fundamental importance for the development and the maintenance of tissues and organs in multicellular organisms. Adhesive processes are mediated and controlled by an increasingly large and complex number of cell adhesion molecules that are anchored to the cell surface membrane by transmembrane domains. According to their structural and functional features, cell adhesion molecules have been classified into at least four major families: the integrins, selectins, cadherins and members of the immunoglobulin superfamily. Apart from linking cells to each other or to components of the extracellular matrix, cell adhesion molecules function also as receptors that interact via their cytoplasmic domain with numerous signalling molecules including protein kinases and phosphatases, G-proteins, or proteins of the beta-catenin/armadillo family. Cell adhesion molecules can activate various signalling pathways and as a consequence play a crucial role in the regulation of cell differentiation, proliferation, migration and apoptosis. During the last decade it has been recognized that acquired as well as inherited defects of cell adhesion molecules and adhesion-linked signalling molecules are the molecular basis of various types of disease including cancer, infectious and inflammatory disease, connective tissue disorders or blistering disease.
This book is the proceedings of a Falk Workshop held in Berlin, Germany, on January 23-24, 2003, which brought together experts in different fields of research to stimulate the transfer of findings from basic research to clinical application. Section I focuses on cell adhesion molecules of the liver and their role inhepatocarcinogenesis and inflammatory liver disease. Section II deals with infection and fibrosis and with transforming growth factor beta (TGF-beta). Morphogenesis, cell migration and inflammation are the subject of Section III with a focus on the role of integrins in blood cell-endothelial interactions. In Section IV the importance of cell adhesion molecules for cancer and their role as potential target for cancer therapy will be discussed.

Many thought that the "German question," which had shaped European history so catastrophically in the last century, had been solved for good in 1990. Furthermore, the elections in 1998 seemed to confirm that Germany was on the road to "normalcy." For the first time in postwar German history a ruling party coalition was totally unseated by elections. Germany thus finally joined other western democracies as a state where a change of government following elections is commonplace. However, starting in the new millennium many have begun to see Germany as a problem case in Europe yet again. This raises questions about the future of Germany and the performance of the Red-Green government that this book seeks to answer. The contributors to this volume examine policies and politics of the Red-Green government in Germany, put recent changes and developments in this country in a long-term perspective, and provide conclusions about future developments.

Many thought that the 'German question', that had shaped European history so catastrophically in the last century, had been solved for good in 1990. And the last elections seemed to confirm that Germany was on the road to 'normalcy'. However, at the beginning of the new century, many see Germany as a problem case in Europe. This raises the question about the future of Germany and the performance of the incumbent government. The book addresses these issues by examining the policies and politics of the Red-Green government and by putting recent changes and developments in this country in a long-term perspective.

This volume reviews a series of different publications dealing with orotic acid. Orotic acid was isolated from cow's milk 75 years ago by Biscaro and Belloni in Italy. Fifty years later again Italian scientists described the growth-promoting activity of orotic acid in vitamin B -deficient animals. 12 Orotic acid is the precursor of pyrimidine nucleotides which are involved in many biochemical reactions: UTP and CTP, as substrates for RNA polymerase, and UDP sugars, as substrates for carbohydrate containing macromolecules, e.g. glycogen, glycoproteins and glycolipids. The biosynthesis of these pyrimidines is well regulated. Disturbance of the biosynthetic pathway or trapping of individual pyrimidine nucleotides may lead to severe metabolic and structural alterations of cells. Synthesis, biochemical aspects and physiological role are reviewed in nine chapters. In the last two decades increasing interest in orotic acid came from several studies showing protective or therapeutic or beneficial effects of this compound in different kinds of organ injuries: various forms of hepatic insufficiency, myocardial infarction, encephalopathy, memorization pro cesses, mentioned in Chapters 8 and 9. At the end of this overview a Bibliography in an alphabetical order with 673 references may give further insight in this topic."