1995
DOI: 10.1161/01.res.77.3.611
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Role of Bradykinin in Protection of Ischemic Preconditioning in Rabbit Hearts

Abstract: Bradykinin receptor activation has been proposed to be involved in ischemic preconditioning. In the present study, we further investigated the role of this agent in preconditioning in both isolated and in situ rabbit hearts. All hearts were subjected to 30 minutes of regional ischemia followed by reperfusion for 2 hours (in vitro hearts) and 3 hours (in situ hearts). Infarct size was measured by tetrazolium staining and expressed as a percentage of the size of the risk zone. Preconditioning in situ hearts with… Show more

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Cited by 455 publications
(303 citation statements)
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“…Thus it is possible that pretreatment with sulprostone only leads to a degree of PKC activation which is below the threshold for a long-lasting opening of KATP channels. This hypothesis is supported by the finding that a specific degree of PKC activation ('Threshold Hypothesis') is required to initiate cardioprotection (Goto et al, 1995).…”
Section: Discussionmentioning
confidence: 92%
“…Thus it is possible that pretreatment with sulprostone only leads to a degree of PKC activation which is below the threshold for a long-lasting opening of KATP channels. This hypothesis is supported by the finding that a specific degree of PKC activation ('Threshold Hypothesis') is required to initiate cardioprotection (Goto et al, 1995).…”
Section: Discussionmentioning
confidence: 92%
“…Knowledge of the underlying principles might help to design pharmacological interventions, keeping tissues at risk in a 'permanent state of preconditioning' (21). Accordingly, numerous studies have been performed to elucidate the mechanisms behind preconditioning, but the results have suggested nearly as many different mediators, including adenosine (5), acetylcholine (22), catecholamines (4), angiotensin II (23), bradykinin (24), nitric oxide (25), and reactive oxygen species (8). To make things even more complicated, the cellular targets of preconditioning seem to be heterogeneous.…”
Section: Discussionmentioning
confidence: 99%
“…These important findings demonstrated that IPC was a receptor-mediated phenomenon and suggested that the infarctlimiting effects of IPC could be mimicked by a pharmacological agent [22]. Other GPCR ligands have been implicated as triggers of IPC such as bradykinin [23,24], opioids [25], acetylcholine [26], catecholamines [27], angiotensin II [28], and endothelin-1 [29]. The IPC triggers are highly redundant with multiple cycles of IPC able to overcome the effect of antagonism at a single receptor [24].…”
Section: Triggers Of Ipcmentioning
confidence: 98%
“…Other GPCR ligands have been implicated as triggers of IPC such as bradykinin [23,24], opioids [25], acetylcholine [26], catecholamines [27], angiotensin II [28], and endothelin-1 [29]. The IPC triggers are highly redundant with multiple cycles of IPC able to overcome the effect of antagonism at a single receptor [24]. The simultaneous activation of these GPCRs during the IPC stimulus suggested that the cardioprotective signal probably converges on a single downstream mediator, protein kinase C (PKC), which mediates the memory effect of IPC.…”
Section: Triggers Of Ipcmentioning
confidence: 99%