Results 41 to 50 of about 10,945 (163)

The causative role of amyloidosis in the cardiac complications of Alzheimer's disease: a comprehensive systematic review

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Schematic illustration of the bidirectional causative link between cerebral amyloid‐beta (Aβ) angiopathy and cardiovascular disease in Alzheimer's disease (AD). Common cardiovascular risk factors like microvascular thrombosis, diabetes, atrial fibrillation, hypertension and atherosclerosis lead to cerebral hypoperfusion and ...
Samuel Parker   +2 more
wiley   +1 more source

In silico modelling of multi‐electrode arrays for enhancing cardiac drug testing on hiPSC‐CM heterogeneous tissues

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Schematic overview of the experimental and computational framework for investigating hiPSC‐CM electrophysiology with MEA systems. The MEA‐based model integrates experimental data with phenotype‐specific ionic models and tissue‐level heterogeneity.
Sofia Botti   +2 more
wiley   +1 more source

O pré-condicionamento isquêmico influencia a contratilidade ventricular na cirurgia sem extracorpórea Ischemic preconditioning influence ventricular function in off-pump revascularization surgery

open access: yesArquivos Brasileiros de Cardiologia, 2010
FUNDAMENTO: O pré-condicionamento isquêmico é um método que prepara e protege a célula para suportar um período de isquemia prolongada com menor dano celular possível.
José Ernesto Succi   +5 more
doaj   +1 more source

Hyperbaric Oxygen Preconditioning Alleviates Myocardial Ischemic Injury in Rats

open access: yesExperimental Biology and Medicine, 2008
It has been shown that after ischemia-reperfusion, application of hyperbaric oxygen (HBO) reduces cardiac injury. In this study we tested the hypothesis that HBO preconditioning reduces injury to the ischemic myocardium. One hundred and eight adult male Sprague-Dawley rats (250–280 g) were randomly divided into four groups: normoxia + sham surgery (CS)
Cuihong, Han   +8 more
openaire   +2 more sources

Mitochondrial oxidative stress, calcium and dynamics in cardiac ischaemia‐reperfusion injury

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Heart attack causes ischaemia–reperfusion injury in cardiomyocytes. Mitochondria generate reactive oxygen species (ROS), leading to oxidative stress. High levels of mitochondrial calcium (Ca2+) activate the mitochondrial permeability transition pore (mPTP), and excess ROS levels can lower the Ca2+ required to activate the mPTP ...
Emily Rozich   +5 more
wiley   +1 more source

A Comparative Study: Cardioprotective Effects of High-Intensity Interval Training Versus Ischaemic Preconditioning in Rat Myocardial Ischaemia–Reperfusion

open access: yesLife
(1) Background: Years of research have identified ischemic preconditioning (IPC) as a crucial endogenous protective mechanism against myocardial ischemia–reperfusion injury, enhancing the myocardial cell’s tolerance to subsequent ischemic damage.
Jia-Yuan Zhang   +6 more
doaj   +1 more source

Connexins and Nitric Oxide Inside and Outside Mitochondria: Significance for Cardiac Protection and Adaptation

open access: yesFrontiers in Physiology, 2018
Irreversible myocardial damage happens in the presence of prolonged and severe ischemia. Several phenomena protect the heart against myocardial infarction and other adverse outcomes of ischemia and reperfusion (IR), namely: hibernation related to stunned
Maria Shvedova   +5 more
doaj   +1 more source

Effects of naloxone on myocardial ischemic preconditioning in humans

open access: yesJournal of the American College of Cardiology, 1999
We attempted to establish whether naloxone, an opioid receptor antagonist, abolishes the adaptation to ischemia observed in humans during coronary angioplasty after repeated balloon inflations.Experimental studies indicate that myocardial opioid receptors are involved in ischemic preconditioning.Twenty patients undergoing angioplasty for an isolated ...
Tomai F   +8 more
openaire   +3 more sources

Small‐conductance Ca2⁺‐activated K⁺ channels in cardiac excitation–contraction coupling: Bridging mitochondria, sarcolemma and antiarrhythmic therapy

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Mitochondrial SK channel enhancement reduces cardiac arrhythmia trigger. Spontaneous sarcoplasmic reticulum (SR) Ca2+ release via hyperactive RyR2s underlies an increased arrhythmia trigger, promoting early and delayed afterdepolarizations during stress. Hyperactive RyR2s causes rise in cytosolic [Ca2+] during diastole. Clearance
Dmitry Terentyev   +7 more
wiley   +1 more source

Pharmacological preconditioning of resveratrol in ischemic / reherfusion injury: the role of nitric oxide

open access: yesКубанский научный медицинский вестник, 2015
The article presents the results of studies of the effect of distant preconditioning by creating short-term limb ischemia and pharmacologic preconditioning of resveratrol on the size of myocardial necrosis and the level of troponin I in serum after ...
L. M. Danilenko   +4 more
doaj  

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