Myocardial Ischemia
Mostrando 25-36 de 399 artigos, teses e dissertações.
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25. Acute Physical Stress Preconditions the Heart Against Ischemia/Reperfusion Injury Through Activation of Sympathetic Nervous System
Resumo Fundamento: O estresse é definido como um estado complicado de distúrbios da homeostase, hiperatividade do sistema nervoso simpático e das respostas do eixo hipotálamo-hipófise-adrenal. O pré-condicionamento cardíaco diminui os danos do miocárdio. Objetivo: Esse estudo avaliou os efeitos cardioprotetores do estresse físico agudo contra a le
Arq. Bras. Cardiol.. Publicado em: 10/10/2019
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26. Myocardial Perfusion by Coronary Computed Tomography in the Evaluation of Myocardial Ischemia: Simultaneous Stress Protocol with SPECT
Resumo Fundamento: A avaliação funcional para descartar a isquemia miocárdica utilizando a angiotomografia computadorizada (angio-TC) de coronárias é de extrema importância e dados na população brasileira ainda são escassos. Objetivo: Avaliar o desempenho diagnóstico da perfusão miocárdica pela angio-TC de coronárias na detecção de doença a
Arq. Bras. Cardiol.. Publicado em: 03/10/2019
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27. Astragaloside IV alleviates myocardial ischemia-reperfusion injury in rats through regulating PI3K/AKT/GSK-3β signaling pathways
Abstract Purpose: To investigate the effect of astragaloside IV (As-IV) on myocardial ischemia-reperfusion (I/R) injury in rats and reltaed mechanisms. Methods: Sixty rats were randomly divided into sham-operated, control I/R and 2.5, 5 and 10 mg/kg As-IV groups, 12 rats in each group. The later three groups were intragastrically administered with As-IV fo
Acta Cir. Bras.. Publicado em: 12/09/2019
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28. Quantification of Myocardial Ischemia: Comparison between Myocardial SPECT and 13NH3 PET/TC
Int. J. Cardiovasc. Sci.. Publicado em: 08/08/2019
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29. Effect of Simulated Geomagnetic Activity on Myocardial Ischemia/Reperfusion Injury in Rats
Abstract Objective: To study the response of myocardial ischemia/reperfusion injury (MI/RI) in rats to simulated geomagnetic activity. Methods: In a simulated strong geomagnetic outbreak, the MI/RI rat models were radiated, and their area of myocardial infarction, hemodynamic parameters, creatine kinase (CK), lactate dehydrogenase (LDH), melatonin, and tro
Braz. J. Cardiovasc. Surg.. Publicado em: 05/08/2019
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30. Protective effect of crocetin from Crocus sativus L. on myocardial ischemia-reperfusion injury in rats
Abstract This study investigated the protective effect of crocetin from Crocus sativus L. on myocardial ischemia-reperfusion injury (MIRI) in rats. Sixty SD rats were randomly divided into sham-operated, model, and low-, medium- and high-dose crocetin groups. Later 3 groups were intragastrically administrated with 10, 20 and 40 mg/kg crocetin from Crocus sat
Food Sci. Technol. Publicado em: 06/06/2019
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31. Comment on Myocardial Perfusion Study in Obese Patients without Known Cardiac Ischemia
Arq. Bras. Cardiol.. Publicado em: 06/06/2019
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32. Pharmacological modulation of b-adrenoceptors as a new cardioprotective strategy for therapy of myocardial dysfunction induced by ischemia and reperfusion
Abstract Purpose: To evaluate the cardioprotective response of the pharmacological modulation of β-adrenergic receptors (β-AR) in animal model of cardiac ischemia and reperfusion (CIR), in spontaneously hypertensive (SHR) and normotensive (NWR) rats. Methods: CIR was induced by the occlusion of left anterior descendent coronary artery (10 min) and reper
Acta Cir. Bras.. Publicado em: 03/06/2019
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33. Chest pain score: a novel and practical approach to angina pectoris. A diagnostic accuracy study
ABSTRACT BACKGROUND: The chest pain classifications that are currently in use are based on studies that are several decades old. Various studies have indicated that these classifications are not sufficient for determining the origin of chest pain without additional diagnostic tests or tools. We describe a new chest pain scoring system that examines the rel
Sao Paulo Med. J.. Publicado em: 08/05/2019
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34. C-reactive Protein is a Predictor of Mortality in ST-segment Elevation Acute Myocardial Infarction
Abstract Background: Inflammation is a major component of the response to tissue injury caused by myocardial infarction. High-sensitivity C-reactive protein (hs-CRP) levels might be a simple marker of the severity of this inflammatory response, providing prognostic information. Objective: To associate hs-CRP level on admission and other clinical characteri
Int. J. Cardiovasc. Sci.. Publicado em: 01/11/2018
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35. Cardioprotective effect of preconditioning is more efficient than postconditioning in rats submitted to cardiac ischemia and reperfusion
Abstract Purpose: To investigate the cardioprotective effects of ischemic preconditioning (preIC) and postconditioning (postIC) in animal model of cardiac ischemia/reperfusion. Methods: Adult rats were submitted to protocol of cardiac ischemia/reperfusion (I/R) and randomized into three experimental groups: cardiac I/R (n=33), preCI + cardiac I/R (n=7) an
Acta Cir. Bras.. Publicado em: 2018-07
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36. Acetaminophen Mitigates Myocardial Injury Induced by Lower Extremity Ischemia-Reperfusion in Rat Model
Abstract Objective: The injury-reducing effect of acetaminophen, an effective analgesic and antipyretic on ischemia-reperfusion continues to attract great attention. This study analyzed the protective effect of acetaminophen on myocardial injury induced by ischemia-reperfusion in an experimental animal model from lower extremity ischemia-reperfusion. Metho
Braz. J. Cardiovasc. Surg.. Publicado em: 2018-06