[PDF] Calcium Regulating Hormones eBook

Author : D. D. Bikle
Publisher : Springer Science & Business Media
Page : 399 pages
File Size : 12,30 MB
Release : 2012-12-06
Category : Nature
ISBN : 1461255538

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The ability to measure accurately the hormones regulating calcium homeosta sis is the fundamental first step toward understanding the roles these hormones play in health and disease. Techniques for such measurements have only been available for the past 10 years or so and remain in a state of rapid development. Sensitive parathyroid hormone (PTH) radioimmunoassays appeared in the early 1970s, and with them came a whole new appreciation for the prevalence and implications of hyperparathyroidism, primary or secondary, in the popu lation. The calcitonin (CT) radioimmunoassay came later and achieved rapid success in the. diagnosis of a previously poorly understood cancer, medullary carcinoma of the thyroid, frequently associated with the familial multiple endo crine neoplasia type 2 syndromes (a and b). As the sensitivity of the calcitonin radioimmunoassay has improved, our understanding of the role of calcitonin in normal physiological processes has increased. The knowledge that vitamin D must be metabolized to produce its biologic effects is only 15 years old. This has had profound implications in our understanding of a variety of metabolic bone, kidney, and gastrointestinal diseases. Assays to measure the major cir culating form of vitamin D, 25-hydroxyvitamin D, were described 10 years ago. Assays for the other metabolites, in particular, 1,25-dihydroxyvitamin D, were described even more recently. As of today, we know of many vitamin D metabolites and have developed the techniques to measure most of them; how ever, many questions remain concerning their physiological role.

Author : Heinrich Schmidt-Gayk
Publisher : Springer Science & Business Media
Page : 336 pages
File Size : 16,56 MB
Release : 2012-12-06
Category : Medical
ISBN : 3662004062

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Calcium metabolism is regulated by three specific hormones: parathor- mone, calciferol metabolites, and calcitonin. Cyclic AMP also plays an important part in calcium regulation, and its concentration in urine can be taken as a measure of parathyroid function. Methods for quantitative measurement of, e.g. calcium-regulating hormones and vitamin D metabolites as well as of cAMP are absolutely necessary for safe differential diagnosis of diseases of the parathyroid like hypo- and hyperparathyroidism. In this monograph all presently available methods are summarized as to whether they can already be obtained as test kits or are still being tested. Radioimmunoassays for the various peptide fragments such as 53-84, 44-68, 28-48, and 1-34 are described, as are immunochemiluminescence methods and adenylate cyclase bioassays. The same is true for the vitamin D metabolites, where the various assays for calcidiol and calcitriol such as HPLC, protein-binding assay with second antibody separation, and double antibody RIA are deA scribed. Finally, determination of calcitonin and cAMP is discussed in detail. This is a practically and clinically oriented monograph for working in the fields of internal medicine, endocrinology, and laboratory medicine.

Author :
Publisher : Academic Press
Page : 307 pages
File Size : 16,53 MB
Release : 2013-07-24
Category : Science
ISBN : 0124079385

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Store-operated calcium channels are found in most animal cells and regulate many cellular functions including cell division, growth, differentiation, and cell death. This volume provides a concise and informative overview of the principles of store-operated calcium entry and the key developments in the field from researchers who have led these advances. The overall goal of the volume is to provide interested students and investigators with sufficient information to enable a broad understanding of the progress and current excitement in the field. The volume contains a wealth of information that even experienced investigators in the field will find useful. The volume provides a comprehensive overview of the mechanisms and functions of store-operated calcium channels Contributors are authoritative researchers who have produced important advances in the field The volume is well-illustrated with cartoons and data to facilitate easy comprehension of the subject

Author : M.F. Crass, III
Publisher : CRC Press
Page : 344 pages
File Size : 45,25 MB
Release : 1994-12-27
Category : Medical
ISBN : 9780849386619

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This is the first book to exclusively address the actions of calcium-regulating hormones and peptides in the cardiovascular system. With 111 illustrations and 13 tables, this comprehensive volume includes: An extensive and critical review of present knowledge of the structure, synthesis, secretion, metabolism, receptors, signal transduction, and actions on classical target cells of each of the calcium-regulating hormones and peptides Discussions on parathyroid hormone and calcitonin, parathyroid hormone-related protein, parathyroid hypertensive factor, 1,25 dihydroxyvitamin D3, calcitonin gene-related peptide, and certain steroid hormones in terms of vascular biology and cardiac function The integrated physiology of calcium-regulating hormones in terms of blood pressure regulation in normotensive and hypertensive settings State-of-the-art electrophysiological techniques used by leading cardiovascular biologists to assess calciotropic hormone effects on calcium channel currents in both vascular smooth muscle and cardiac myocytes Studies on the regulation of hormone and receptor gene expression in the context of possible regulation of local and systemic blood flow and cardiac function by calcium-regulating hormones and peptides

Author : Ellis D. Avner
Publisher : Springer Science & Business Media
Page : 2059 pages
File Size : 50,81 MB
Release : 2009-08-20
Category : Medical
ISBN : 3540763279

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Here is an extensive update of Pediatric Nephrology, which has become the standard reference text in the field. It is global in perspective and reflects the international group of editors, who are well-recognized experts in pediatric nephrology. Within this text, the development of kidney structure and function is followed by detailed and comprehensive chapters on all childhood kidney diseases.

Author : United States Public Health Service
Publisher :
Page : 0 pages
File Size : 41,53 MB
Release : 2004-12
Category : Health & Fitness
ISBN : 9781410219275

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This first-ever Surgeon General's Report on bone health and osteoporosis illustrates the large burden that bone disease places on our Nation and its citizens. Like other chronic diseases that disproportionately affect the elderly, the prevalence of bone disease and fractures is projected to increase markedly as the population ages. If these predictions come true, bone disease and fractures will have a tremendous negative impact on the future well-being of Americans. But as this report makes clear, they need not come true: by working together we can change the picture of aging in America. Osteoporosis, fractures, and other chronic diseases no longer should be thought of as an inevitable part of growing old. By focusing on prevention and lifestyle changes, including physical activity and nutrition, as well as early diagnosis and appropriate treatment, Americans can avoid much of the damaging impact of bone disease and other chronic diseases. This Surgeon General's Report brings together for the first time the scientific evidence related to the prevention, assessment, diagnosis, and treatment of bone disease. More importantly, it provides a framework for moving forward. The report will be another effective tool in educating Americans about how they can promote bone health throughout their lives. This first-ever Surgeon General's Report on bone health and osteoporosis provides much needed information on bone health, an often overlooked aspect of physical health. This report follows in the tradition of previous Surgeon Generals' reports by identifying the relevant scientific data, rigorously evaluating and summarizing the evidence, and determining conclusions.