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Cited by 279

The DOI matches its Crossref record; 26 of the 26 references it cites were found in a registry or an index.

Endothelin ET A and ET B Receptors Cause Vasoconstriction of Human Resistance and Capacitance Vessels In Vivo

Haynes, William G., Strachan, Fiona E., Webb, David J.·1995·Circulation

Abstract

Background The role of endothelin ET B receptors in mediating vasoconstriction in humans is unclear. As yet, there have been no in vivo studies in resistance vessels, and in vitro data have been contradictory. We therefore investigated the function of ET B receptors in vivo in human forearm resistance and hand capacitance vessels using endothelin-1 as a nonselective agonist at ET A and ET B receptors and endothelin-3 and sarafotoxin S6c as selective agonists at the ET B receptor. Methods and Results A series of single-blind studies were performed, each in six healthy men. Brachial artery infusion of endothelin-1 and endothelin-3 caused slow-onset dose-dependent forearm vasoconstriction. Although endothelin-3 caused significantly less forearm vasoconstriction than endothelin-1 at low doses, vasoconstriction was similar to the two isopeptides at the highest dose (60 pmol/min). Endothelin-3 caused transient forearm vasodilatation at this dose, whereas endothelin-1 showed only a nonsignificant trend toward causing early vasodilatation. Intra-arterial sarafotoxin S6c caused a progressive reduction in forearm blood flow, although less than that to endothelin-1 ( P =.04). Dorsal hand vein infusion of sarafotoxin S6c caused local venoconstriction that was also less than that to endothelin-1 ( P =.002). Conclusions Selective ET B receptor agonists cause constriction of forearm resistance and hand capacitance vessels in vivo in humans, suggesting that both ET A and ET B receptors mediate vasoconstriction. Hence, antagonists at both ET A and ET B receptors, or inhibitors of the generation of endothelin-1, may be necessary to completely prevent vasoconstriction to endogenously generated endothelin-1.

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Metadata

Authors
Haynes, W. G., Strachan, F. E., & Webb, D. J.
Venue
Circulation
Published
1995-08
Volume
92
Issue
3
Pages
357-363
ISSN
  • 0009-7322 (ISSN-L)
  • 1524-4539
OpenAlex
W2043199191
Cited by
279
References
26
FWCI
10.98
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Endothelin ET A and ET B Receptors Cause Vasoconstriction of Human Resistance and Capacitance Vessels In Vivo. https://app.cochat.ai/papers/10.1161/01.cir.92.3.357
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Haynes, W. G., Strachan, F. E., & Webb, D. J. (1995). Endothelin ET A and ET B Receptors Cause Vasoconstriction of Human Resistance and Capacitance Vessels In Vivo. Circulation. https://doi.org/10.1161/01.cir.92.3.357

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