Download or read book Tracer Methods in Hormone Research written by E. Gurpide and published by Springer Science & Business Media. This book was released on 2013-03-08 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this monograph is to describe theoretical aspects of the interpretation of data obtained from experiments performed with labeled hormones. Quantitative endocrinologic studies involving the use of tracers include the determination of rates at which hormones are secreted by endocrine glands and are produced outside these glands by conversion of other secreted hor mones. Tracer experiments are also performed with the purpose of measuring rates of metabolic reactions. These measurements reveal the contribution of secreted hormones to the formation of circulating compounds and urinary metabolites. The estimation of rates of fetal and placental production and exchange of hormones characterizes a class of in vivo quantitative studies performed with isotopically labeled hormones (radioactive or not). In addi tion, tracers are used to measure permeability and rates of reaction in in vitro systems, and to study the uptake of hormones by tissues, both in vivo and in vitro. The stability of the steroid nucleus carrying the isotopic label and the large number of reversible metabolic reactions in which steroids are involved, both facilitated and motivated the development of a sophisticated theoretical treat ment of tracer experiments in the field of endocrinology. Although the prac tical examples used to illustrate the concepts and calculations presented in this monograph involve labeled hormones, the theory is presented in a general symbolic manner and is applicable to other fields of investigation.
Download or read book Trace Methods in Hormone Research written by E. Gurpide and published by . This book was released on 1975-03-06 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oxford Textbook of Endocrinology and Diabetes written by John A.H. Wass and published by Oxford University Press, USA. This book was released on 2011-07-28 with total page 2158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Now in its second edition, the Oxford Textbook of Endocrinology and Diabetes is a fully comprehensive, evidence-based, and highly-valued reference work combining basic science with clinical guidance, and providing first rate advice on diagnosis and treatment.
Download or read book Diet and Health written by National Research Council and published by National Academies Press. This book was released on 1989-01-01 with total page 765 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diet and Health examines the many complex issues concerning diet and its role in increasing or decreasing the risk of chronic disease. It proposes dietary recommendations for reducing the risk of the major diseases and causes of death today: atherosclerotic cardiovascular diseases (including heart attack and stroke), cancer, high blood pressure, obesity, osteoporosis, diabetes mellitus, liver disease, and dental caries.
Download or read book Thyroid Hormone Metabolism written by Georg Hennemann and published by Marcel Dekker. This book was released on 1986 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Library of Medicine Current Catalog written by National Library of Medicine (U.S.) and published by . This book was released on 1971 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: First multi-year cumulation covers six years: 1965-70.
Download or read book The Menstrual Cycle and Its Disorders written by Karl M. Pirke and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Altered eating behavior and exercise habits frequently affect the menstrual cycle, particularly in young women. This book summarizes the state of art of knowledge of behavioral effects on reproductive endocrine function. An attempt is made to characterize the hypothalamic pulse generator biochemically and to determine factors which influence hypothalamic pulsatility. These new results are then discussed in view of the malfunctioning of the hypothalamic pulse generator in anorectic and bulimic patients. This book offers a new perspective, i.e. from behavior to hormonal mechanisms, unlike most literature dealing with the relationship from the perspective of hormones to behavior.
Download or read book Endocrinology Adult and Pediatric Reproductive Endocrinology written by J. Larry Jameson and published by Elsevier Health Sciences. This book was released on 2013-05-07 with total page 1414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Endocrinology: Adult and Pediatric: Reproductive Endocrinology is a new eBook from the same experts responsible for the highly acclaimed two-volume Endocrinology clinical reference book. It puts all of the latest advances in adult and pediatric reproductive endocrinology at your fingertips, instantly accessible on your favorite eReader - so you can give your patients the benefit of today’s best know-how. Stay abreast of the newest knowledge in reproductive endocrinology, including endocrinology of sexual behavior and gender identity; genetic pathways that control gonadal development and sex differentiation; management of PCOS and hirsutism; management of male androgen deficiency; management of gynecomastia; and much more. Effectively review the causes and management of precocious or delayed puberty. Count on all the authority that has made Endocrinology, 6th Edition, edited by leading endocrinologists Drs. Jameson and DeGroot, the go-to clinical reference for endocrinologists worldwide. Consult this title on your favorite e-reader, conduct rapid searches, and adjust font sizes for optimal readability. Compatible with Kindle®, nook®, and other popular devices.
Download or read book Immunopathology of Insulin written by Konrad Federlin and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soon after the discovery of insulin in 1922, it became clear that the use of this hormone in the treatment of diabetics is often accom panied by allergy. In 1956 it became possible to determine quantita tively the insulin-binding antibodies which are responsible for the resistance to insulin. The methods developed since then make it possible to measure minute amounts of the pancreatic hormone in blood and extracellular fluids. There have been many attempts to relate insulin allergy and in sulin resistance to the primary, secondary or tertiary structure of the or B chains, or both, and more recently, to the proinsulin which is A present in all commercial preparations of insulin, i. e. to the species specific structure of the C peptide. In the great majority of papers dealing either with the immunogenic and antigenic properties of in sulin or with the relevant antibodies, the discussion has been restricted to the humoral antibodies. The existence of a brief period of delayed local allergy resulting from the cellular immune response has more or less escaped attention. It is specifically this period of delayed allergy that attracted the interest of Dr. FEDERLIN and his colleagues. Making use of immuno histological and other techniques which are rarely employed in clinical observation, and with the help of experiments on animals, Dr. FEDERLIN traces the course of insulin allergy from cellular immunity, through the production of humoral antibodies by the insulin-binding cells of the circulation, to the sessile immunological apparatus.
Download or read book Structure and Function of the Gonadotropins written by Kenneth W. McKerns and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 635 pages. Available in PDF, EPUB and Kindle. Book excerpt: In September of 1977 scientists from many countries met at the Asticou Inn in Maine to present and discuss papers written especially for this monograph. The presentations were informal and directed to the special interests of the audience in order to generate discussions. The authors, many of whom are pioneers and leaders in their field, then had the oppor tunity to revise their contributions, which were brought together with the edited discussions to form this volume. The basic research studies presented here are important because of the essential role of gonadotropins in regulating the ovary and testis. This monograph will therefore be of interest to those concerned with fertility regulation, population control, possible new methods for contraception, and to those concerned with reproduction in domestic animals. Re searchers in other fields may find this monograph useful, as it has been de termined that gonadotropins are secreted by many tumors and are im plicated in many cancers. Human choriogonadotropin also seems to be found in most, if not all, cells of the human body. The significance of this, however, is unknown.
Download or read book Hormone Research written by and published by . This book was released on 1989 with total page 992 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Regulation of Aldosterone Biosynthesis written by Jürg Müller and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most of our knowledge of the physiological control of aldosterone secretion is based on animal experiments and clinical studies which were carried out in the 1950s and early 1960s by a large number of inspired, ingenious and meticulous researchers. Their work has been excellently reviewed by-among others-MULLER (1963), BLAIR WEST et al. (1963), LARAGH and KELLY (1964), GANONG et al. (1966), MULROW (1966), DAVIS (1967) and GROSS (1967). According to the majority of these investigators, aldosterone secretion is primarily regulated by the renin-angiotensin system, with plasma sodium and potassium levels and pituitary secretion of ACTH playing important secondary roles. During the last six years, this hypothesis has been generally accepted and has only occasionally been challenged. The following is an attempt to take-from the perspective of a relatively simple in vitro model-a new look at the efferent axis of the apparently very complex control system maintaining adequate aldosterone production in the mammalian organism. My views are based mainly on a series of experiments which I have performed in order to study more closely the interactions of adrenocortical tissue with substances capable of directly influencing aldosterone bio synthesis.
Download or read book Hypothalamic Control of Lactation written by F. G. Sulman and published by Butterworth-Heinemann. This book was released on 2013-10-22 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: Monographs on Endocrinology, Volume 3: Hypothalamic Control of Lactation provides information pertinent to the fundamental aspects of lactation, which is dependent upon the temporal cortex of the brain. This book discusses the manifold problems of hypothalamic lactation. Organized into four parts encompassing 30 chapters, this volume begins with an overview of the mechanisms of lactation and explores the hormone requirements for mammary development in various species. This text then examines the theory of the anterior pituitary gland being controlled by neurohumors carried through the hypophysial portal circulation. Other chapters consider the physiology of pituitary prolactin, which is distinguished from other pituitary tropins by its inhibitory regulation originating in the central nervous system. This book discusses as well the mechanism of the lactogenic effect of hypothalamic tranquilizers. The final chapter deals with the structure of the hypothalamic factors responsible for lactation. This monograph is a valuable resource for endocrinologists, scientists, students, and researchers.
Download or read book Steroid Protein Interactions written by Ulrich Westphal and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the story of steroid-protein interactions as one investigator sees it. Following the general concept of this monograph series, it emphasizes the results and interpretations obtained in the author's laboratory, and is therefore a subjective account. Recognizing, how ever, that the discussion of the subject would be incomplete if the material were limited to one scientist's work, the essential achieve ments of other investigators have been incorporated. An effort has thus been made to give a balanced presentation and to enable the reader to see in perspective the varied facets of the interactions between steroids and proteins. Since this is the first comprehensive treatment of the topic, it seems appropriate to go to the roots, and try to find out how it all started. The first chapters, therefore, take the reader to the laboratories of those who very early conceived the significance of the attachment of dyes, drugs, and other conspicuous molecules to those colloids called proteins. The discovery of the steroid hormones set the stage for meaningful investigation of their interaction with proteins of various origins and functions - a process which is continuing today with increasing vigor.
Download or read book Mathematical Modeling in Experimental Nutrition Vitamins Proteins Methods written by and published by Academic Press. This book was released on 1996-12-02 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book developed from a series of conferences to facilitate the application of mathematical modeling to experimental nutrition. As nutrition science moves from prevention of gross deficiencies to identifying requirements for optimum long term health, more sophisticated methods of nutritional assessment will be needed. Collection and evaluation of kinetic data may be one such method. This books opens with chapters giving specific examples of the application of modeling techniques to vitamin A, carotenoids, folate, vitamin b-6, glycogen phosphorylase, transthyretin, amino acids, and energy metabolism. Obtaining kinetic data on internal processes is a major challenge; therefore, the text includes chapters on the use of microdialysis and ultrafiltration, use of membrane vesicles, and culture of mammary tissue. Many of the authors use the Simulation, Analysis and Modeling program which allows compartmental models to be described without specifying the required differential equations. The final sections of the book, however, present some more mathematical descriptions of physiological processes, including bioperiodicity, metabolic control, and membrane transport; discussions of some computational aspects of modeling such as parameter distributions, linear integrators and identifiability; and alternative mathematical approaches such as neural networks and graph theory. Specific, detailed examples of applications of modeling to vitamins, proteins, amino acids, and energy metabolism Novel methods for collecting kinetic data--microdialysis, ultrafiltration, membrane vesicles, and the culture of mammary tissue Mathematical treatment of complex metabolic processes including bioperiodicity, metabolic control, and membrane transport Computational approaches to distribution of kinetic parameters, evaluation of linear integrators, and identifiability Alternative mathematical approaches--neural networks and graph theory Detailed descriptions of the application of modeling to a variety of nutrients
Download or read book Compartmental Distribution Of Radiotracers written by James S. Robertson and published by CRC Press. This book was released on 2017-10-19 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: The availability of isotopic varieties of the chemical elements has had a strong impact on many branches of science. For some procedures isotopic tracers make possible methods that are simply easier or more accurate or more convenient than other methods. More importantly, however, there are some processes, particularly those involving steady-state conditions, that before the advent of isotopic tracers were considered to be not accessible to investigation, but which can be studied with these tracers. In biological studies the radioactive tracers have been especially useful because external detection methods can be employed in noninvasive or minimally invasive studies.
Download or read book The Endocrinology of Prostate Tumours written by R. Ghanadian and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tumours of the prostate are the commonest types of neoplasm in the male. Whilst the benign form is virtually a universal condition in the ageing male, malignant tumours rank amongst the top causes of cancer death. Despite the fact that the involvement of the testis in the growth of the prostate has been recognised for almost two centuries, it was not until the early 1940s that Charles Huggins' studies on the effect of orchidectomy and oestrogen therapy on prostatic cancer initiated endocrine manipulation in the management of this malignancy. During the 1960s progress in the understanding of the mechanism of hormone action, achieved through advances in molecular biology and the recognition of certain aspects of hormonal control in relation to the genome, introduced a new dimension for approaching endocrine manipulation of prostatic tumours. By the end of that decade a new scientific discipline devoted to prostate research had been born, which brought together investigators in the fields of molecular biology, biochemistry, endocrinology, immunology, urology and pathology to search for the cause and to explore methods for advancing the management of abnormal prostatic growth. Since then a wealth of scientific data has accumulated on the prostate in which endocrinology has manifested itself as the cardinal aspect to which most of the findings can be related.
