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Cardiovascular adaptation to hypoxia and the role of peripheral resistance.

Published version
Peer-reviewed

Type

Article

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Authors

Cowburn, Andrew S 
Macias, David 
Summers, Charlotte 

Abstract

Systemic vascular pressure in vertebrates is regulated by a range of factors: one key element of control is peripheral resistance in tissue capillary beds. Many aspects of the relationship between central control of vascular flow and peripheral resistance are unclear. An important example of this is the relationship between hypoxic response in individual tissues, and the effect that response has on systemic cardiovascular adaptation to oxygen deprivation. We show here how hypoxic response via the HIF transcription factors in one large vascular bed, that underlying the skin, influences cardiovascular response to hypoxia in mice. We show that the response of the skin to hypoxia feeds back on a wide range of cardiovascular parameters, including heart rate, arterial pressures, and body temperature. These data represent the first demonstration of a dynamic role for oxygen sensing in a peripheral tissue directly modifying cardiovascular response to the challenge of hypoxia.

Description

Keywords

HIF, human biology, hypoxia, medicine, mouse, peripheral resistance, skin, Adaptation, Physiological, Animals, Blood Pressure, Heart Rate, Hypoxia, Mice, Skin Physiological Phenomena, Temperature, Vascular Resistance

Journal Title

Elife

Conference Name

Journal ISSN

2050-084X
2050-084X

Volume Title

6

Publisher

eLife Sciences Publications, Ltd
Sponsorship
Wellcome Trust (092738/Z/10/Z)
Cambridge University Hospitals NHS Foundation Trust (CUH) (146281)
National Cancer Institute (R01CA153983)
European Commission (331756)
Wellcome Trust (214283/Z/18/Z)