Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1987 Jan;408(1):32-7.
doi: 10.1007/BF00581837.

Measurement by Quin2 of changes of the intracellular calcium concentration in strips of the rabbit ear artery and of the guinea-pig ileum

B Himpens, R Casteels

Measurement by Quin2 of changes of the intracellular calcium concentration in strips of the rabbit ear artery and of the guinea-pig ileum

B Himpens et al. Pflugers Arch. 1987 Jan.

Abstract

Ca2+ transient and force development were investigated in smooth muscle strips of the rabbit ear artery and the longitudinal layer of the guinea-pig ileum by using the fluorescent indicator Quin2. Agonists only transiently increased the fluorescence intensity despite the enhanced contraction while excess potassium resulted in a maintained light signal. In Ca2+ free solutions the release by an agonist of Ca2+ from an intracellular store can be demonstrated. These observations illustrate the usefulness of the Ca2+ indicator Quin2 in the study of the excitation-contraction coupling in smooth muscle under various conditions.

PubMed Disclaimer

References

    1. J Physiol. 1981 Dec;321:513-35 - PubMed
    1. Fed Proc. 1982 May;41(7):2245-50 - PubMed
    1. J Gen Physiol. 1977 Apr;69(4):401-16 - PubMed
    1. J Cell Biol. 1982 Aug;94(2):325-34 - PubMed
    1. Biochem Biophys Res Commun. 1985 Jul 31;130(2):627-32 - PubMed

Publication types

LinkOut - more resources