Physiological and Pathological Responses to Hypoxia and High Altitude, Volume II PDF Download
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Author: Rodrigo Iturriaga
Publisher: Frontiers Media SA
ISBN: 2889769631
Category : Science
Languages : en
Pages : 256
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Book Description
Author: Rodrigo Iturriaga
Publisher: Frontiers Media SA
ISBN: 2889769631
Category : Science
Languages : en
Pages : 256
Get Book
Book Description
Author: Rodrigo Iturriaga
Publisher: Frontiers Media SA
ISBN: 2889638006
Category :
Languages : en
Pages : 387
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Book Description
The appearance of photosynthetic organisms about 3 billion years ago increased the partial pressure of oxygen (PO2) in the atmosphere and enabled the evolution of organisms that use glucose and oxygen to produce ATP by oxidative phosphorylation. Hypoxia is commonly defined as the reduced availability of oxygen in the tissues produced by different causes, which include reduction of atmospheric PO2 as in high altitude, and secondary to pathological conditions such as sleep breathing and pulmonary disorders, anemia, and cardiovascular alterations leading to inadequate transport, delivery, and exchange of oxygen between capillaries and cells. Nowadays, it has been shown that hypoxia plays an important role in the genesis of several human pathologies including cardiovascular, renal, myocardial and cerebral diseases in fetal, young and adult life. Several mechanisms have evolved to maintain oxygen homeostasis. Certainly, all cells respond and adapt to hypoxia, but only a few of them can detect hypoxia and initiate a cascade of signals intended to produce a functional systemic response. In mammals, oxygen detection mechanisms have been extensively studied in erythropoietin-producing cells, chromaffin cells, bulbar and cortical neurons, pulmonary neuroepithelial cells, smooth muscle cells of pulmonary arteries, and chemoreceptor cells. While the precise mechanism underpinning oxygen, sensing is not completely known several molecular entities have been proposed as possible oxygen sensors (i.e. Hem proteins, ion channels, NADPH oxidase, mitochondrial cytochrome oxidase). Remarkably, cellular adaptation to hypoxia is mediated by the master oxygen-sensitive transcription factor, hypoxia-inducible factor-1, which can induce up-regulation of different genes to cope the cellular effects related to a decrease in oxygen levels. Short-term responses to hypoxia included mainly chemoreceptor-mediated reflex ventilatory and hemodynamic adaptations to manage the low oxygen concentration while more prolonged exposures to hypoxia can elicit more sustained physiological responses including switch from aerobic to anaerobic metabolism, vascularization, and enhancement of blood O2 carrying capacity. The focus of this research topic is to provide an up-to-date vision on the current knowledge on oxygen sensing mechanism, physiological responses to acute or chronic hypoxia and cellular/tissue/organ adaptations to hypoxic environment.
Author: Robert C. Roach
Publisher: Springer Science & Business Media
ISBN: 1461547113
Category : Medical
Languages : en
Pages : 455
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Book Description
Hypoxia is a constant threat throughout life. International experts from many different fields, including clinicians, clinical researchers, and basic scientists, have contributed to this volume, presenting state-of-the-art information regarding normal and abnormal (pathophysiological) responses to hypoxia. The topics covered include visitors to high altitude, the latest developments on high-altitude cerebral and pulmonary edema, the brain in hypoxia, high-altitude headache, and similarities between ischemic and hypoxic injury to the brain. In addition topics are covered such as blood-brain barrier in hypoxia, hypoxia interactions with vascular growth, and how humans adjust to extreme hypoxia.
Author: Erik R. Swenson
Publisher: Springer Science & Business Media
ISBN: 1461487722
Category : Medical
Languages : en
Pages : 495
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Book Description
Over the last decade the science and medicine of high altitude and hypoxia adaptation has seen great advances. High Altitude: Human Adaptation to Hypoxia addresses the challenges in dealing with the changes in human physiology and the particular medical conditions that arise from exposure to high altitude. In-depth and comprehensive chapters cover both the basic science and the clinical consequences of exposure to high altitude. Genetic, cellular, organ and whole body system responses to high altitudes are covered and chapters discuss these effects on a wide range of diseases. Expert authors provide insight into the care of patients with pre-existing medical conditions that fail in some cases to adapt as well as offer insights into how high altitude research can help critically ill patients. High Altitude: Human Adaptation to Hypoxia is an important new volume that offers a window into greater understanding and more successful treatment of hypoxic human diseases.
Author:
Publisher: Elsevier
ISBN: 0080497195
Category : Science
Languages : en
Pages : 867
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Book Description
The ability of cells to sense and respond to changes in oxygenation underlies a multitude of developmental, physiological, and pathological processes. This volume provides a comprehensive compendium of experimental approaches to the study of oxygen sensing in 48 chapters that are written by leaders in their fields.
Author: Elena Loreti
Publisher:
ISBN: 9783036501499
Category :
Languages : en
Pages : 288
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Book Description
Molecular oxygen deficiency leads to altered cellular metabolism and can dramatically reduce crop productivity. Nearly all crops are negatively affected by a lack of oxygen (hypoxia) due to adverse environmental conditions such as excessive rain and soil waterlogging. Extensive efforts to fully understand how plants sense oxygen deficiency and their ability to respond using different strategies are crucial to increase hypoxia tolerance. Progress in our understanding has been significant in recent years. This topic certainly deserves more attention from the academic community; therefore, we have compiled a series of articles reflecting the advancements made thus far.
Author: John West
Publisher: CRC Press
ISBN: 1444154338
Category : Medical
Languages : en
Pages : 541
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Book Description
A comprehensive update to this preeminent and accessible text, this fifth edition of a bestseller was developed as a response to man's attempts to climb unaided to higher altitudes and to spend more time in these conditions for both work and recreation. It describes the ever-expanding challenges that doctors face in dealing with the changes in huma
Author: Robert C. Roach
Publisher: Springer Science & Business Media
ISBN: 9780306466960
Category : Medical
Languages : en
Pages : 466
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Book Description
Hypoxia remains a constant threat throughout life. It is for this reason that the International Hypoxia Society strives to maintain a near quarter century tradition of presenting a stimulating blend of clinical and basic science discussions. International experts from many fields have focused on the state-of-the-art discoveries in normal and pathophysiological responses to hypoxia. Topics in this volume include gene-environment interactions, a theme developed in both a clinical context regarding exercise and hypoxia, as well as in native populations living in high altitudes. Furthermore, experts in the field have combined topics such as skeletal muscle angiogenesis and hypoxia, high altitude pulmonary edema, new insights into the biology of the erythropoietin receptor, and the latest advances in cardiorespiratory control in hypoxia. This volume explores the fields of anatomy, cardiology, biological transport, and biomedical engineering among many others.
Author: Tatum S. Simonson
Publisher: Frontiers Media SA
ISBN: 2832527930
Category : Science
Languages : en
Pages : 161
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Book Description
Author: Ricardo Ferraz
Publisher: BoD – Books on Demand
ISBN: 1839699515
Category : Health & Fitness
Languages : en
Pages : 228
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Book Description
Exercise physiology is one of the most researched sports sciences, with practical implications for health, well-being and sports performance. This book brings together emerging research in this area, presenting the main findings and criticisms, as well as considering the future of exercise physiology.
