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February 1, 2002Canadian Journal of Physiology and Pharmacology

Studies on the angiotensin-converting enzyme and the kinin B2receptor in the rabbit jugular vein: modulation of contractile response to bradykinin

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Key result

ACE inhibitors potentiate bradykinin exclusively by preventing metabolism but fail to prevent B2 receptor desensitization.

Population

Rabbit jugular vein (rbJV) bioassay system (endothelium-denuded veins)

Comparison

ACE inhibitors (captopril, enalaprilat) vs Tissues not pretreated with ACE inhibitors

Design

Preclinical

Authors

FGFernand GobeilUniversité de SherbrookeSHStephanie HalléPBPaul-André BlaisUniversité de Sherbrooke

Discussion

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Implication

Does not support changes to ACE inhibitor use; leaves open B2 receptor roles in human bradykinin responses.

Structured PICO

P
Population
Rabbit jugular vein (rbJV) bioassay system (endothelium-denuded veins)
I
Intervention
ACE inhibitors (captopril, enalaprilat)
C
Comparator
Tissues not pretreated with ACE inhibitors
O
Outcome
Contractile response to bradykinin (BK) and BK analogues (pEC50 values)surrogate

ACE inhibitors potentiate bradykinin effects by preventing its metabolism and restoring tissue responsiveness by changing local bradykinin concentrations, rather than by preventing B2 receptor desensitisation.

Cite This Study

Gobeil et al. (2002) studied this question. ACE inhibitors (captopril, enalaprilat) was evaluated on Contractile response to bradykinin and B2 receptor desensitisation. ACE inhibitors potentiate bradykinin exclusively by preventing its metabolism and restore tissue responsiveness by changing bradykinin concentrations, but do not prevent B2 receptor desensitisation.

synapsesocial.com/papers/6aa7801ffb78d07897effdc9https://doi.org/10.1139/y02-014
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1ACE inhibitors are endothelium dependent vasodilators of coronary arteries during submaximal stimulation with bradykinin1993 · 67 citations
  2. 2ACE in three tunicae of rat aorta: expression in smooth muscle and effect of renovascular hypertension1994 · 68 citations
  3. 3Potentiation by ACE inhibitors of the dilator response to bradykinin in the coronary microcirculation: interaction at the receptor level1994 · 97 citations
  4. 4ACE inhibitor potentiation of bradykinin‐induced venoconstriction1997 · 60 citations
  5. 5Potentiation of Kinin Analogues by Ramiprilat Is Exclusively Related to Their Degradation2001 · 22 citations