Purine and Pyrimidine Metabolism in Man VI


Book Description

These two volumes contain articles presented at the Vlth International Symposium on Human Purine and Pyrimidine Metabolism held in Hakone, Japan ,July 17 trough 21, 1988. The first meeting of this series of symposia convened in Tel Aviv, Israel, and since then meetings have taken place every three years in various parts of the world. The second meeting was held in Baden, Austria, the third in Madrid, Spain, the fourth in Maastricht, the Netherlands, and fifth in San Diego, California. The Vlth meeting in Hakone marked the first such symposium held in Asia. On occasion of publishing these books, I would like to describe how research in this field has evolved in Japan. Early in the 1950s, I was engaged in clinical practice treating various rheumatic diseases as an orthopedicist, and found that a substantial percentage of our patients had symptoms apparently compatible with gout. During the 1960s, the number of these gouty patients increased, and in the 1970s, research on the pathogenesis of gout was performed on the basis of approximately 2,000 cases of this disease, together with precise epidemiological studies concerning gouty and hyperuricemic individuals. Data derived from the two kinds of study had greatly changed the notion that gout was a rare disease among Japanese. My clinical studies have been succeeded by research at the molecular level on various purine metabolic abnormalities, including not only gout but also other diseases with various symptoms of wide clinical spectra.




Purine and Pyrimidine Metabolism in Man IX


Book Description

th th This volume comprizes articles presented at the joint IX International and 6 Euro pean Symposium on Purine and Pyrimidine Metabolism in Man held in Gmunden, Austria, June 1 through 7, 1997. Since the first of this series of meetings was held in Israel in 1973, conventions were organized every three years in different parts of the world including the USA, Japan, and Europe. The different aspects of purine and pyrimidine metabolism bring together re searchers working in molecular genetics, biochemical pharmacology, biochemistry, devel opmental biology, immunology, epidemiology and the clinics. Oriented research in the field has been seminal for the development of potent anticancer and antiviral drugs. As the number of genes which are cloned, grows, the understanding of metabolism is increas ingly enlarged and might provide leads to further improve therapeutic concepts and to bet ter understand mechanisms responsible for the development of resistance against these drugs. In certain diseases purine and pyrimidine analogs represent not only the drugs of choice but in fact are the sole therapeutic alternative at present. The field has also taken an early lead in attempting to correct inborn errors of purine and pyrimidine metabolism by gene therapy. The organization of this meeting involved a large number of people who dedicated their time in an effort to make this symposium a success. We thank the Abstract Review Committee, the International Advisory Board and in particular the Symposium Secretariat for doing a wonderful job.




Purine and Pyrimidine Metabolism in Man VIII


Book Description

These volumes record the presentations made at the VIII International Symposium on Purine and Pyrimidine Metabolism in Manheld at Indiana University, Bloomington, USA from May 22- May 27, 1994. This was a continuation of meetings held every three years with the idea of bringing clinicians and basic scientists together, which we hope results in cross-fertilization of ideas. Some of the papers presented in this volume represent oral contributions and others are from posters, but we emphasize that both are considered of equal merit. As is obvious from a perusal of the titles of the papers there has been a shift in the focus of this meeting, which reflects a general shift in the area of purine and pyrimidine metabolism. The emphasis has definitely shifted to gene structure and molecular genetics, with the beginnings we hope of gene therapy as an important branch of this area of science. Although many of the inherited diseases discussed in this text can be treated with drugs, the major thrust in the futurewill be in gene therapy, where the gene (or cDNA) will be used to treat the patient with enzyme deficiency, particularly if the patient is young. As can be seen from the Iist of authors there is a remarkable degree of international cooperation in this area across countries and continents. We thank the many participants who have attended these symposia many times, and we welcome the large group of scientists from Eastern Europe who are attending this meeting for the first time.




Purine and Pyrimidine Metabolism in Man VII


Book Description

These two volumes record the scientific and clinical work presented at the VIIth International and 3rd European joint symposium on purine and pyrimidine metabolism in man held at the Bournemouth International Conference Centre, Bournemouth, UK, from 30th June to 5th July 1991. The series of international meetings at three yearly intervals have previously been held initially in 1973 in Israel, then Austria, Spain, the Netherlands, USA and Japan. The European society for the Study of Purine and Pyrimidine Metabolism in Man (ESSPPM) which has its own executive and some finance first met in Switzerland in 1987, then in Germany in 1989. The steady evolution of the science in this series of meetings is intellectually satisfying; the subsequent clinical progress is emotionally and economically reassuring. As befits the position of purines and pyrimidines at the centre of biochemistry, there has been steady scientific development into molecular genetics and now onto developmental controls and biochemical pharmacology. The complexities of the immune system are being unravelled but an understanding of the human brain largely eludes us. Laboratory based scientists now predominate over those who work as clinical specialists in vii rheumatology, immunology, oncology and paediatrics. However, there continue to be major clinical objectives since large sections are concerned with major causes of death like ATP depletion, cancer and now AIDS; the laboratory work is providing clinical solutions.




Purine and Pyrimidine Metabolism in Man X


Book Description

th This volume contains articles presented at the X International Symposium on Purines and Pyrimidines in Man, held on May 14 19, 2000 in Tel Aviv, Israel. The first symposium in this series took place in Tel Aviv in 1973. Since then, the symposium has been held every three years in different parts of the world, including Europe, USA and Japan. The participants, in this series of symposia, are characterised by a wide interest in the various aspects of purines and pyrimidines in man, which include biochemistry, genetics, pharmacology, physiology, clinics, etc. Presentations in the symposia include clarification of metabolic pathways, characterisation of enzyme structure and kinetics and discoveries of new inborn errors of metabolism and suggestions for new therapeutic approaches for these inborn errors. In addition, development of new purine and pyrimidine derivatives for the treatment of cancer and viral diseases, and many more subjects of mutual interest were brought to the fore. With the development of therapeutic means and of new research tools, we have witnessed changes in the areas of interest. The interest in gout and uric acid urolithiasis has lessened, whereas molecular aspects, the role of purine and pyrimidine substances in neurotransmission and in purinergic signaling appear to gain greater interest. The articles, included in this volume, contain new data pertaining to the various aspects detailed above.




Copper Bioavailability and Metabolism


Book Description

Nutrition is truly a science of the 20th century. That physiological disabilities could be caused by a lack of exogenous substances which could be supplied by foods is a concept of relatively recent origins. It is not surprising, therefore, that, until the last few years, much of nutritional science research was tied to: 1) establishing a cause and effect relationship between a physiological problem and its cure/prevention by a chemical substance in food; 2) quantifying the amount of the substance (nutrient) needed to prevent deficiency symptoms; and 3) quantifying the amounts of nutrients found in various food substances. That a nutrient might be present in apparently adequate amounts in foods consumed by an individual but could not be fully utilized because of the concurrent consumption of anti-nutrients has been recognized as being an important problem as, for example, iodine-deficiency goiters resulting from consumption of gOitrigens. That less specific, less dramatic interactions among nutrients and among nutrients and other food components might enhance or inhibit the absorption of nutrients from the intestines or of the metabolism of nutrients within the body is an area of current concern.




Renal Eicosanoids


Book Description




Endotoxin


Book Description

This volume is based on the proceedings of the International Symposium on Bacterial Endotoxins held in Japan. May 11-14. 1988 and sponsored by the International Endotoxin Society and the International Society for Immuno pharmacology. Speakers and participants of this symposium provided new information concerning fundamental and clinical aspects of endotoxin research conducted over the last half decade or so. Advances have been made in understanding the structure and nature of endotoxin molecules and their effects on a wide variety of both cellular and subcellular aspects, of immunity. metabolism and physiology. both in vivo and in vitro. Endotoxins are constituents of gram negative bacteria. Since their original discovery in the nineteenth century. many laboratories studied their chemical composition. their physico- and immunochemica1 properties. as well as their pharmacological and physiological effects on the host. Much is now known about the chemical structure of the endotoxins. There is also a grow ing body of information concerning the multiple effects of endotoxins on the host including immune mechanisms. Some effects have been found to be benefi cial to the host and endotoxins are being used more frequently to induce important mediators of immunity as well as increasing resistance against infections by many microorganisms as well as inhibiting growth of tumors in experimental animal models and in man.




Immunobiology of Proteins and Peptides V


Book Description

Proceedings of the Fifth International Symposium held in Alberta, Canada, Oct. 1988. Articles are focused on the field of vaccines against viral, bacterial, and parasitic agents. Topics include: cytotoxic and helper T-lymphocyte responses to antibody, the application of molecular biology to the deve




The Immune Response to Viral Infections


Book Description

Virus diseases continue to represent serious health problems in most parts of the world. In spite of the fact that diseases such as polio myelitis and measles have been controlled in the industrialized countries by vaccination, vaccines now in use in tropical countries have proved not to be optimal. Further research is needed to develop new vaccines that will be effective in all countries. To do so we need to understand better the immune response to different viruses so that we may be able to maxi mize the protective response of new vaccines and minimize their potential immunopathologic effect. An exciting new discovery which is now being further developed is the possibility of being able to use some viruses (e.g. vaccinia, adenoviruses, etc.), as carriers for other antigens. This may open up the way for the production of vaccines that will be inexpensive and that will confer long lasting immunity after only one injection. This meeting has also served to review our present knowledge of virus diseases which are still of great importance such as hepatitis, dengue and influenza.