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Effects of hypercapnia on membrane potential and intracellular calcium in rat carotid body type I cells.

Abstract:

1. An acid-induced rise in the intracellular calcium concentration ([Ca2+]i) of type I cells is thought to play a vital role in pH/PCO2 chemoreception by the carotid body. In this present study we have investigated the cause of this rise in [Ca2+]i in enzymatically isolated, neonatal rat type I cells. 2. The rise in [Ca2+]i induced by a hypercapnic acidosis was inhibited in Ca(2+)-free media, and by 2 mM Ni2+. Acidosis also increased Mn2+ permeability. The rise in [Ca2+]i is dependent, theref...

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Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MSD, Physiology Anatomy and Genetics
Role:
Author
Journal:
The Journal of physiology
Volume:
478 ( Pt 1)
Issue:
1
Pages:
157-171
Publication date:
1994-07-05
EISSN:
1469-7793
ISSN:
0022-3751
URN:
uuid:08035f54-44af-431e-b6d7-aae8956b119d
Source identifiers:
312274
Local pid:
pubs:312274

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