Assay Of Protein And Polypeptide Hormones
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Author | : H. Van Cauwenberge |
Publisher | : Elsevier |
Total Pages | : 255 |
Release | : 2014-05-17 |
Genre | : Medical |
ISBN | : 1483145964 |
International Series of Monographs in Pure and Applied Biology, Modern Trends in Physiological Sciences, Volume 33: Assay of Protein and Polypeptide Hormones focuses on the assays of protein and polypeptide hormones. The selection first discusses the general principles of protein and polypeptide hormone assays, including conditions and basic factors for bioassays and status of biological assays. The book looks at the assays of hypophyseal hormones, such as growth hormones, adrenocorticotropin (ACTH), thyrotropin, gonadotropins, prolactin, vasopressin, and oxytocin. Concerns include radioimmunoassay, standards of thyrotropin, immunoassay of hypophyseal gonadotropins, and bioassay of prolactin. The book evaluates the assays of pancreatic hormones, such as insulin and glucagon. Chemical structure and properties of insulin and radioimmunoassay of glucagon are explained. The text also focuses on the assays of erythropoietin, renin, human chorionic gonadotropin, and human placental lactogen (HPL). Concerns include augmentation of red cell volume; biological application of renin assays; and similarities and differences between hypophyseal somatotropin and HPL. The selection is a valuable source of data for readers interested in the assays of protein and polypeptide hormones.
Author | : M. Margoulies |
Publisher | : |
Total Pages | : 268 |
Release | : 1972 |
Genre | : Nature |
ISBN | : |
Author | : J. Chayen |
Publisher | : Springer Science & Business Media |
Total Pages | : 336 |
Release | : 2012-12-06 |
Genre | : Medical |
ISBN | : 364281459X |
The cytochemical bioassay system was described in a short abstract in 1971, and more fully, in the cytochemical bioassay of corticotrophin, in 1972. Since then, cytochemical bioassays have been described for several polypeptide hormones, and these assays are already widely used. It is expedient that the subject should be reviewed, as it is in this monograph, by one writer who has had the good fortune to have taken part in the growth of cytochemistry from its early origins to its present position as the basis of possibly the most sensitive bioassay system currently available. However, it should be noted that major contributions have been made by many, both to the development of the subject and to the establishment of the bioassays. The object of this preface is to try to give some perspective to the growth of this subject and to record that the cytochemical bioassay system has been fostered by many outstanding scientists in an atmosphere of remarkable goodwill. To begin with, there could have been no cytochemical bioassays until cytochem istry had been converted from its rather unsure origins into a precise and quantitative form of cellular biochemistry. This was done with skill and enthusiastic dedication by my colleagues, Dr. Lucille Bitensky, Dr. F. P. Altman, Dr. R. G. L. W. Poulter and Mr. A. A. Silcox, first at the Royal College of Butcher, Dr.
Author | : Nathan Back |
Publisher | : Springer |
Total Pages | : 671 |
Release | : 2013-12-11 |
Genre | : Medical |
ISBN | : 1461446120 |
It can be concluded (under the specific experimental procedures em ployed) that:- 1) HCG labelled with 1 - 2 atoms of radioactive iodine did not differ sig nificantly from the unlabelled hormone; 2) The ovary alone exhibited a capacity to affix specifically HCG; 3) The amount of radioactive material in the ovary was directly proport ional to the quantity of labelled HCG injected; 4) When the HCG present in the circulation is bound to an antiserum to HCG, the antigen-antibody complex is not concentrated by the ovary; 5) Circulating labelled HCG decreased to 50% within 30 minutes following a single intravenous injection; 6) There are four different phases of ovarian uptake of HCG, namely: the first phase, when there is only an inflow from the circulation and stor age mainly in the follicular envelopes; the second phase, when there is a greater inflow than outflow; the third phase, when the inflow is equal to the outflow; and the fourth period, when the outflow is bigger than the in flow. REFERENCES 1. Lunenfeld, B. and Eshkol, A. Vitamins and Hormones (1967) 25:165 2. Eshkol, A. In: Recent Research on Gonadotropbio Hormones, eds. E. T. Bell andJ. A. Loraine, Edinburgh, Livingstone (1967), p. 202. 3. Eshkol, A. and Lunenfeld, B. Proc. Tel-Hashomer Hosp. (1967) 6:4. ACKNOWLEOOMEN'IS This work was supported in part by a grant from the Population Council, N. Y. , U. S. A. andbyGrantNo.
Author | : John E. Shively |
Publisher | : Springer Science & Business Media |
Total Pages | : 458 |
Release | : 2008-02-22 |
Genre | : Science |
ISBN | : 1592594360 |
Milestones in the techniques and methodology of polypeptide structure determination include the determination of the sequence of insulin by Sanger in 1951 (I) and the introduction of the repeti tive degradation of proteins with phenylisothiocyanate by Edman in 1959 (2). The automation of Edman chemistry (3) played a major role in the determination of polypeptide structures. Important modifications of Edman chemistry include the solid-phase approach by Laursen in 1971 (4) and the use of modified Edman reagents such as 4-N, N-dimethylaminoazobenzene-4'-isothiocy- ate (DABITC) for manual sequencing by Chang et al. (5) in 1976. A second major breakthrough in the analysis of polypeptides was automated amino acid analysis described by Spackman et al. in 1958 (6). However, during the period from 1975 to 1980, it became increasingly clear that the amount of material required for struc tural analysis was more than could be easily isolated for the vast majority of proteins. The field was criticized for its lack of sensitive techniques for the analysis of growth factors, immune modulators, membrane receptors, and peptide hormones. In addition, very little had been done to modernize and improve the original instruments introduced in the mid-1960s. The first indications of improved instrumentation for Edman chemistry came from Wittmann-Liebold's laboratory (7), followed by the introduction of a "micro" sequencer by Hunkapiller and Hood in 1978 (8). The movement toward improved instrumentation culminated in the "gas"--Phase sequencer of Hewick et al. (9) in 1981
Author | : Ruth Porter |
Publisher | : John Wiley & Sons |
Total Pages | : 192 |
Release | : 2009-09-16 |
Genre | : Science |
ISBN | : 0470717912 |
The Novartis Foundation Series is a popular collection of the proceedings from Novartis Foundation Symposia, in which groups of leading scientists from a range of topics across biology, chemistry and medicine assembled to present papers and discuss results. The Novartis Foundation, originally known as the Ciba Foundation, is well known to scientists and clinicians around the world.
Author | : M. Margoulies |
Publisher | : |
Total Pages | : 986 |
Release | : 1968 |
Genre | : Hormones |
ISBN | : |
Author | : Sidney Udenfriend |
Publisher | : Academic Press |
Total Pages | : 383 |
Release | : 2013-10-22 |
Genre | : Science |
ISBN | : 1483218015 |
Chemistry, Biology, and Medicine of Neurohypophyseal Hormones and Their Analogs, Volume 8 covers the advances in methods to study peptide hormone action at the molecular level. The book discusses the anatomy, physiology, and clinical disorders of the neurohypophysis; the biosynthesis of neurohypophyseal peptides; and the structure-activity relationships of neurohypophyseal peptides, with an emphasis on the role of conformational features. The text also describes conformational studies of neurohypophyseal hormones by physical chemical techniques; the central nervous system effects of neurohypophyseal peptides; and the effects of neurohypophyseal hormones on the kidney. The effects of neurohypophyseal hormones on the cardiovascular systems are also considered. Chemists, neurobiologists, and people involved in the study of neurohypophyseal hormones will find the book invaluable.
Author | : Choh Hao Li |
Publisher | : |
Total Pages | : 472 |
Release | : 1973 |
Genre | : Hormones |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 0 |
Release | : 2002 |
Genre | : Cells |
ISBN | : 9780815332183 |