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Biochem Biophys Res Commun
January 2025
Cardiovascular Research Group, Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, University Road, Tobe Camp, Abbottabad, 22060, KPK, Pakistan. Electronic address:
Gentisic acid (GA), a cytochrome P450 metabolite of the antiplatelet drug aspirin, exhibits smooth muscle relaxant, antiatherogenic, and antioxidant activities. It also has a protective role in hypertrophic heart failure, suggesting its role in the management of myocardial infarction (MI). This study aimed to explore the protective activity of GA in isoproterenol (ISO)-induced MI in Sprague-Dawley (SD) rats in-vivo, followed by mechanistic investigation ex-vivo.
View Article and Find Full Text PDFInt J Mol Sci
January 2025
Institute for Pharmacology and Toxicology, Medical Faculty, Martin Luther University Halle-Wittenberg, 06097 Halle, Germany.
Glucagon can increase the force of contraction (FOC) in, for example, canine hearts. Currently, whether glucagon can also increase the FOC via cAMP-increasing receptors in the human atrium is controversial discussed. Glucagon alone did not (up to 1 µM) raise the FOC in human right atrial preparations (HAP).
View Article and Find Full Text PDFSci Rep
January 2025
Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.
Europinidin is a novel anthocyanidin found in the petals of Plumbago europea that exhibits several physiological effects. Research was conducted to assess europinidin's cardioprotective efficacy in a diabetic and myocardial infarction (MI) experimental model. Rat was injected through the intraperitoneal administration of 45 mg/kg of streptozotocin (STZ), while MI was induced by subcutaneously administering 85 mg/kg of isoproterenol (ISP) at 24 and 48 h prior to the sacrifice procedure.
View Article and Find Full Text PDFBiochem Biophys Res Commun
January 2025
Department of Cardiology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, PR China. Electronic address:
Background: Atrial fibrillation (AF) is a common cardiac arrhythmia that is characterized by atrial electrical remodeling. The P2X7 receptor (P2X7R), an ATP-gated ion channel, has been implicated in cardiovascular pathologies; however, its role in atrial electrical remodeling remains unclear. This study investigated whether inhibition of P2X7R could mitigate isoproterenol (ISO)-induced atrial electrical remodeling in rats and explored the underlying mechanisms.
View Article and Find Full Text PDFIran J Basic Med Sci
January 2025
Department of Medical Pharmacology, Faculty of Medicine, Adıyaman University, Adıyaman, 02040, Turkey.
Objectives: In this investigation, the protective effects of hydroxytyrosol (HT) administered prior to myocardial infarction in rats were examined, with a particular focus on its potential roles within the Notch pathway.
Materials And Methods: The animals were categorized into seven groups (n=7): control, myocardial infarction (MI) 6 hr, MI 24 hr, MI 7 day, MI+HT 6 hr, MI+HT 24 hr, MI+HT 7 day. In order to create infarction, the rats received a subcutaneous injection of isoproterenol at a dose of 200 mg/kg.
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