Aromatase Activity In The Brain Of Medaka And Its Regulation By Sex Steroids PDF Download
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Author | : Ana Clara Lesus de Melo Rodrigues |
Publisher | : |
Total Pages | : 372 |
Release | : 2001 |
Genre | : |
ISBN | : |
Download Aromatase Activity in the Brain of Medaka and Its Regulation by Sex Steroids Book in PDF, ePub and Kindle
Author | : JSG Edmunds |
Publisher | : |
Total Pages | : 13 |
Release | : 1999 |
Genre | : Androgens |
ISBN | : |
Download Localization and Sex Steroid Regulation of Brain Aromatase Activity Book in PDF, ePub and Kindle
We performed assays for aromatase activity in serial 200 ?m sections of the three orthogonal planes of the brain and produced a three dimensional reconstruction of aromatase levels in Medaka (Oryzias latipes) brain. The regulation of this brain aromatase activity by sex steroids was then examined by in vivo exposure bioassays. We demonstrate that the activity of brain aromatase is localized to an area that contains the hypothalamus, a region of the brain involved in the regulation of the reproductive function. The exposure of Medaka to estradiol lead to increased brain aromatase levels; whereas, exposure to methyl-testosterone lead to decreased brain aromatase levels. The regulation of brain aromatase levels by both product and substrate may provide a sensitive trigger for environmental cues to alter sex behavior.
Author | : Jacques Balthazart |
Publisher | : Oxford University Press |
Total Pages | : 553 |
Release | : 2012-11-15 |
Genre | : Medical |
ISBN | : 0199841195 |
Download Brain Aromatase, Estrogens, and Behavior Book in PDF, ePub and Kindle
This book concerns how estrogens are synthesized in the brain and their two modes of action on behavior: a slow process involving gene transcription and a faster action at the cell membrane. The significance of the regulation and distribution of the estrogen synthesizing enzyme aromatase in the brain is also highlighted.
Author | : |
Publisher | : |
Total Pages | : 642 |
Release | : 2001 |
Genre | : Environmental health |
ISBN | : |
Download Environmental Health Perspectives Book in PDF, ePub and Kindle
Author | : Diane Susan Henshel |
Publisher | : ASTM International |
Total Pages | : 500 |
Release | : 1999 |
Genre | : Biochemical markers |
ISBN | : 0803126182 |
Download Environmental Toxicology and Risk Assessment Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 918 |
Release | : 2005 |
Genre | : Dissertations, Academic |
ISBN | : |
Download Dissertation Abstracts International Book in PDF, ePub and Kindle
Author | : Minoru Tanaka |
Publisher | : Springer Nature |
Total Pages | : 231 |
Release | : 2022-11-07 |
Genre | : Science |
ISBN | : 9811953597 |
Download Spectrum of Sex Book in PDF, ePub and Kindle
This book introduces cutting-edge studies on the spectrum of sex. The sex spectrum can be understood as an interwoven mechanism sustaining graded phenotypes between the two sexes. The book overviews three elements that develop the sex spectrum: genetics, the endocrine system, and the environment. Part I discusses the genetic regulation during sex determination, which often results in a mixture of two sexes or sex reversal. The evolutionary aspects of the genetic determinants are also discussed. Part II presents the involvement of endocrine regulation in the sex spectrum, which covers a broad range of phenotypic events, including sexual behavior and metabolism. Interestingly, sex hormones can also act as sex determinants. Finally, Part III shows that intrinsic factors, such as sex-determining genes and sex hormones, are not the only factors in sex development. The environment surrounding organisms, such as symbiosis and metabolism, act on the sex as critical factors, generating the sex spectrum. Determination and development of the two sexes have been a topic of great interest and a long-standing issue in biology. The book updates the conventional view that biological sex is fixed after birth and sets new perspectives for understanding sex as a spectrum manifested in multiple phenomena. Each chapter contributed by leading experts explains the sex spectrum in various organisms and their underlying mechanisms from the latest ongoing studies. The book provides a valuable resource for not only experts in developmental biology, physiology, and medical science, but also non-scientists and anyone interested in the topic.
Author | : Linda Caroline Hall |
Publisher | : |
Total Pages | : 306 |
Release | : 2002 |
Genre | : |
ISBN | : |
Download Estrogenic and Reproductive Effects of the Herbicide Surflan(TM) and Its Active Ingredient Oryzalin Book in PDF, ePub and Kindle
Author | : Ralf H. Anken |
Publisher | : Editions Quae |
Total Pages | : 96 |
Release | : 1998 |
Genre | : Brain |
ISBN | : 2738008186 |
Download Brain Atlas of the Medakafish Book in PDF, ePub and Kindle
Author | : Hanping Wang |
Publisher | : John Wiley & Sons |
Total Pages | : 1810 |
Release | : 2018-11-08 |
Genre | : Technology & Engineering |
ISBN | : 1119127270 |
Download Sex Control in Aquaculture Book in PDF, ePub and Kindle
Awarded Bookauthority's "Best Aquaculture Books of all Time" A comprehensive resource that covers all the aspects of sex control in aquaculture written by internationally-acclaimed scientists Comprehensive in scope, Sex Control in Aquaculture first explains the concepts and rationale for sex control in aquaculture, which serves different purposes. The most important are: to produce monosex stocks to rear only the fastest-growing sex in some species, to prevent precocious or uncontrolled reproduction in other species and to aid in broodstock management. The application of sex ratio manipulation for population control and invasive species management is also included. Next, this book provides detailed and updated information on the underlying genetic, epigenetic, endocrine and environmental mechanisms responsible for the establishment of the sexes, and explains chromosome set manipulation techniques, hybridization and the latest gene knockout approaches. Furthermore, the book offers detailed protocols and key summarizing information on how sex control is practiced worldwide in 35 major aquaculture species or groups, including fish and crustaceans, and puts the focus on its application in the aquaculture industry. With contributions from an international panel of leading scientists, Sex Control in Aquaculture will appeal to a large audience: aquaculture/fisheries professionals and students, scientists or biologists working with basic aspects of fish/shrimp biology, growth and reproductive endocrinology, genetics, molecular biology, evolutionary biology, and R&D managers and administrators. This text explores sex control technologies and monosex production of commercially-farmed fish and crustacean species that are highly in demand for aquaculture, to improve feed utilization efficiency, reduce energy consumption for reproduction and eliminate a series of problems caused by mixed sex rearing. Thus, this book: Contains contributions from an international panel of leading scientists and professionals in the field Provides comprehensive coverage of both established and new technologies to control sex ratios that are becoming more necessary to increase productivity in aquaculture Includes detailed coverage of the most effective sex control techniques used in the world's most important commercially-farmed species Sex Control in Aquaculture is the comprehensive resource for understanding the biological rationale, scientific principles and real-world practices in this exciting and expanding field.