PMID: 3763377Sep 1, 1986Paper

The effects of hypoxia on the metabolic and cardiorespiratory responses to shivering produced by external and central cooling in the pigeon

Pflügers Archiv : European journal of physiology
M GleesonW Rautenberg

Abstract

Respiratory, cardiovascular and blood gas responses of pigeons to spinal cord cooling (36 +/- 1 degrees C), to ambient cooling (Ta = 5 degrees C) and to simultaneous spinal cord and ambient cooling were measured at three different levels of fractional inspired oxygen concentration (FIO2 = 0.209, 0.10 and 0.07). Shivering and the 'extra' VO2 provoked by ambient and/or spinal cord cooling were more or less reduced during hypoxic exposure depending on the intensity of cold stress and hypoxic states. At FIO2 = 0.10 shivering was markedly reduced and sometimes inhibited, whereas at FIO2 = 0.07 any pattern of cold tremor was inhibited. The accompanying cardiorespiratory responses were similar to those of thermoneutral controls exposed to the same FIO2. The amount by which VO2 was reduced in the pigeons exposed to hypoxia during ambient and/or spinal cord cooling was correlated, at both levels of hypoxia, to the thermoregulatory VO2 (viz. the 'extra' VO2 produced by cooling) prior to exposure to the hypoxic gas. The effect of hypoxia on shivering and associated cardiorespiratory adjustments was rapid and was completely reversible on return to air. We conclude that the thermoregulatory system in pigeons is sensitive to hypoxia, as is t...Continue Reading

References

Jul 1, 1978·Physiological Reviews·P Bouverot
Feb 1, 1977·Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology·D H Horstman, L E Banderet
Apr 1, 1974·Journal of Applied Physiology·C M Blatteis, T M Gilbert
Nov 1, 1969·Journal of Applied Physiology·B BhatiaT L Rao
Jul 1, 1984·Pflügers Archiv : European journal of physiology·G BarnasW Rautenberg
Jul 1, 1984·Pflügers Archiv : European journal of physiology·G Barnas, W Rautenberg
May 1, 1963·The Journal of Physiology·J C MOTT
Jul 1, 1963·Physiological Reviews·A HEMINGWAY

❮ Previous
Next ❯

Citations

Dec 1, 1986·Pflügers Archiv : European journal of physiology·M GleesonW Rautenberg
Jun 1, 1987·Pflügers Archiv : European journal of physiology·Y Tamaki, T Nakayama
Jun 1, 1994·Respiration Physiology·H Gautier, M Bonora
Aug 30, 2008·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Dylan S AtchleyRyan W Bavis
Sep 5, 2006·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Kênia C BicegoLuiz G S Branco

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.