Cardiac Output and Regional Blood Flow in Conscious Rats Exposed to Acute Hypoxia

Cardiac Output and Regional Blood Flow in Conscious Rats Exposed to Acute Hypoxia PDF Author: N. S. Nejad
Publisher:
ISBN:
Category : Anoxemia
Languages : en
Pages : 28

Get Book Here

Book Description
The effects of hypoxia on cardiac output and fractional distribution of regional blood flow were measured in unrestrained and unanesthetized Sprague-Dawley rats. Cardiac output was determined by thermodilution techniques, while blood distribution was determined by Rb86Cl and iodoantipyrine131 tracers. The animals were exposed 18-24 hours after cannulation to atmospheres of air and 7 and 10% oxygen in nitrogen. Cardiac output was higher in the hypoxic environments. Fractional distribution to brain, heart, and adrenal was increased, while that to the kidney and spleen was decreased in reduced O2 environments. (Author).

Cardiac Output and Regional Blood Flow in Conscious Rats Exposed to Acute Hypoxia

Cardiac Output and Regional Blood Flow in Conscious Rats Exposed to Acute Hypoxia PDF Author: N. S. Nejad
Publisher:
ISBN:
Category : Anoxemia
Languages : en
Pages : 28

Get Book Here

Book Description
The effects of hypoxia on cardiac output and fractional distribution of regional blood flow were measured in unrestrained and unanesthetized Sprague-Dawley rats. Cardiac output was determined by thermodilution techniques, while blood distribution was determined by Rb86Cl and iodoantipyrine131 tracers. The animals were exposed 18-24 hours after cannulation to atmospheres of air and 7 and 10% oxygen in nitrogen. Cardiac output was higher in the hypoxic environments. Fractional distribution to brain, heart, and adrenal was increased, while that to the kidney and spleen was decreased in reduced O2 environments. (Author).

Adaptation to Altitude-Hypoxia in Vertebrates

Adaptation to Altitude-Hypoxia in Vertebrates PDF Author: P. Bouverot
Publisher: Springer Science & Business Media
ISBN: 3642823165
Category : Science
Languages : en
Pages : 188

Get Book Here

Book Description
Adaptation to altitude hypoxia is characterized by a variety offunctional changes which collectively facilitate oxygen trans port from the ambient medium to the cells of the body. All of these changes can be seen at one time or another in the course of hypoxic exposure. Yet, as already stressed (Hannon and Vogel, 1977), an examination of the literature gives only a sketchy and often conflicting picture of the exact nature of these changes and how they interact as a function of exposure duration. This is partly because of the limited number of variables explored in a given study, but it is also attributable to differences in experimental design, differences among species in susceptibility to hypoxia, nonstandardized experimental conditions, lack of proper control of physical (e. g. , temperature) and physiological variables (e. g. , body mass), failure to take measurements at key periods of exposure, and gaps in knowledge about some fundamental mechanisms. Furthermore the available data on animals native to high altitude are meager and/or inconclusive. Extensive further work under well-controlled experimental conditions is required before a detailed picture can be made. Nevertheless, it has been a guiding principle in the prepara tion of this monograph rather to summarize the vastly dis persed material that constitutes the comparative physiology of adaptation to high altitude into a coherent picture, than to provide a comprehensive survey of the field.

Regulation of Coronary Blood Flow

Regulation of Coronary Blood Flow PDF Author: Michitoshi Inoue
Publisher: Springer Science & Business Media
ISBN: 4431683674
Category : Medical
Languages : en
Pages : 330

Get Book Here

Book Description
Research centering on blood flow in the heart continues to hold an important position, especially since a better understanding of the subject may help reduce the incidence of coronary arterial disease and heart attacks. This book summarizes recent advances in the field; it is the product of fruitful cooperation among international scientists who met in Japan in May, 1990 to discuss the regulation of coronary blood flow.

Handbook on Hyperbaric Medicine

Handbook on Hyperbaric Medicine PDF Author: Daniel Mathieu
Publisher: Springer Science & Business Media
ISBN: 9781402043765
Category : Medical
Languages : en
Pages : 846

Get Book Here

Book Description
The decade since the first Handbook on Hyperbaric Medicine has seen major advances: studies have clarified the actions of hyperbaric oxygenation; clinical practice is becoming more scientific; various organisational and operational guidelines are now widely accepted. This new Handbook arises from the EU Co-operation in Science and Technology (COST) programme for hyperbaric medicine, COST B14, in combination with the results of a number of recent experimental and clinical studies.

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 722

Get Book Here

Book Description


Progress in Brain Research

Progress in Brain Research PDF Author: J. P. Schadé
Publisher:
ISBN: 9780444409522
Category : Brain
Languages : en
Pages : 438

Get Book Here

Book Description


Monthly Catalog of United States Government Publications, Cumulative Index

Monthly Catalog of United States Government Publications, Cumulative Index PDF Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1348

Get Book Here

Book Description


Monthly Catalog of United States Government Publications

Monthly Catalog of United States Government Publications PDF Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1320

Get Book Here

Book Description


Cumulated Index Medicus

Cumulated Index Medicus PDF Author:
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 1860

Get Book Here

Book Description


Monthly Catalog of United States Government Publications

Monthly Catalog of United States Government Publications PDF Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages :

Get Book Here

Book Description