Transcriptional Regulation of the Urea Cycle Enzyme Genes in the Liver of Rana Catesbeiana Tadpoles During Spontaneous and Thyroid Hormone-induced Metamorphosis PDF Download
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Author: Yuqing Eugene Chen
Publisher:
ISBN:
Category : Bullfrog
Languages : en
Pages : 428
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Book Description
Author: Yuqing Eugene Chen
Publisher:
ISBN:
Category : Bullfrog
Languages : en
Pages : 428
Get Book Here
Book Description
Author: Yuqing Eugene Chen
Publisher:
ISBN:
Category : Bullfrog
Languages : en
Pages : 0
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Book Description
Author: Patrick J. Walsh
Publisher: CRC Press
ISBN: 9780849384110
Category : Science
Languages : en
Pages : 358
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Book Description
Although the basic evolutionary patterns of nitrogen metabolism and excretion have been outlined for decades, there has been a resurgence of research activity in the past 15 years. Research in nitrogen metabolism has been stimulated in the area of acid-base balance. The molecular revolution has had an impact on the field as well, and recent studies on nitrogen metabolism and excretion now almost routinely use the tools of molecular biology. Of special interest are recent studies of evolutionary relationships between proteins of nitrogen metabolism. Nitrogen Metabolism and Excretion updates the reader on progress being made in this subject, offering an exciting integration of traditional topics and discussions on the most recent issues which have not yet appeared in other textbooks or references. The book features chapters on the latest developments in nitrogen metabolism and excretion from 28 prominent researchers from all over the world. Each chapter is detailed and specific, filled with useful concepts and techniques. The scope of the book is broad and diverse, covering groups from invertebrates to mammals, and subjects from nitrogen in oceanic buoyancy regulation to molecular mechanisms of nitric oxide synthesis. The text provides a phylogenetic view of various animal groups and presents much new information intended to break down phylogenetic stereotypes. The general areas of development, maternal-fetal interactions, protein turnover, carbamoyl phosphate synthesis, nitric oxide, and nitrates and nitrites are also covered in depth. This volume is the first in a new series that brings about a modern synthesis of areas of animal physiology. Nitrogen Metabolism and Excretion benefits both established researchers interested in nitrogen and advanced undergraduate and graduate students who want to investigate the most current and exciting questions being studied and debated.
Author: Fernand V. Gauthier
Publisher:
ISBN:
Category : Amphibians
Languages : en
Pages : 0
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Author:
Publisher: Academic Press
ISBN: 0080536352
Category : Science
Languages : en
Pages : 705
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Book Description
Metamorphosis addresses various facets of postembryonic development, particularly signal transduction, morphogenesis, cell-cell interactions, and programmed cell death. A key feature of the book is its exploration of the molecular mechanisms underlying these processes. - Hormonal regulation of development - The mechanisms of hormone action - The steroid/thyroid hormone receptor family - Morphogenesis and programmed cell death
Author: Fernand V. Gauthier
Publisher:
ISBN:
Category : Amphibians
Languages : en
Pages : 226
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Book Description
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 844
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Book Description
Author: Caren Christiane Helbing
Publisher:
ISBN:
Category : Bullfrog
Languages : en
Pages : 482
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Author:
Publisher:
ISBN:
Category : Dissertation abstracts
Languages : en
Pages : 896
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Book Description
![Expression of Genes Encoding the Heavy Chains of Myosin in the Tail Muscle of Thyroid Hormone-induced Metamorphosing Rana Catesbeiana Tadpoles [microform] PDF](https://books.google.com/books/content/images/frontcover/sGo3vwEACAAJ?fife=w80-h100)
Author: Huimin Hu
Publisher: National Library of Canada = Bibliothèque nationale du Canada
ISBN: 9780612212916
Category : Gene expression
Languages : en
Pages : 232
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Book Description
The complete regression of a tadpole's tail during its transition to a frog is dramatic and a morphological hallmark of amphibian metamorphosis. Studies of tail regression indicate that the destruction of this organ involves a genetic program which is initiated by thyroid hormone and consists of several phases, all of which are thought to involve changes in gene expression. Previous studies, focused on the initial phase of tail regression in the Rana catesbeiana tadpole, have shown that a decrease in the rate of synthesis of some myofibrillar proteins, such as the myosin heavy chains, is an early, thyroid hormone-mediated event. However, the question of whether this event results from regulatory mechanisms operating at the level of transcription and/or translation has not been addressed. Thus, the overall objective of my studies was to establish what effect thyroid hormone has on the expression of mRNAs encoding the heavy chains of myosin in the tail muscle of hormone-treated tadpoles, and, to accomplish my objective, I first had to isolate and characterize cDNAs encoding the myosin heavy chains found in the tail muscle of this tadpole. The results of my investigations demonstrate (1) that the genes which encode at least five of the myosin heavy chains expressed in the tadpole tail muscle are also expressed in the hindlimb muscles of tadpoles at metamorphic climax and in the limb muscles of adult frogs, (2) that thyroid hormone treatment of the tadpole does not repress the level of these mRNAs in its tail, but, instead, appears to promote an accumulation in the level of at least four of the mRNAs encoding these myosin heavy chains, and (3) that the thyroid hormone-induced up-regulation in the levels of the myosin heavy chain mRNAs is early and coincidental with an up-regulation in the levels of mRNAs encoding TR$\alpha,$ TR$\beta$ and the Rana homologue of a mammalian C/EBP-$\delta.$ These results suggest that the thyroid hormone-induced decrease in the rate of myosin heavy chain synthesis in the tadpole tail muscle is not related to a depression in the amount of mRNAs encoding the tadpole (stage-specific) isoforms of the myosin heavy chains.
