isoquinoline/infarction

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Coptisine exert cardioprotective effect through anti-oxidative and inhibition of RhoA/Rho kinase pathway on isoproterenol-induced myocardial infarction in rats.

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OBJECTIVE Because myocardial infarction is a major cause of morbidity and mortality worldwide, protecting the heart from the ischemia is the focus of intense research. Coptisine is an isoquinoline alkaloid extracted form Coptidis Rhizoma. This study aims to elucidate if coptisine is responsible for

Myocardial Salvaging Effects of Berberine in Experimental Diabetes Co-Existing with Myocardial Infarction.

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BACKGROUND Berberine, an isoquinoline alkaloid isolated from the Berberis aristata, has been shown to display a wide array of pharmacological activities (hypoglycaemic and hypolipidemic). OBJECTIVE The present study was designed to investigate whether these pharmacological properties translate into

Isoquinolines. 5. Synthesis and antiarrhythmic activity of benzylisoquinoline derivatives.

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The synthesis of a series of benzylisoquinolines 2-9 containing aminoacetamide side chains is described. The method involved reduction of the appropriately substituted nitrobenzylisoquinolines followed by acylation to the chloroacylamide derivatives. Amination with the appropriate amine yielded the

H-89, a non-specific inhibitor of protein kinase A, promotes post-ischemic cardiac contractile recovery and reduces infarct size.

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Myocardial ischemia is associated with increased production of cyclic adenosine monophosphate (cAMP), with potentially deleterious effects. We hypothesized that the ischemia-induced activation of cAMP-dependent protein kinase A (PKA), could beneficially be inhibited by a PKA-inhibitor

Design, synthesis, and biological evaluation of isoquinoline-1,3,4-trione derivatives as potent caspase-3 inhibitors.

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A series of isoquinoline-1,3,4-trione derivatives were identified as novel and potent inhibitors of caspase-3 through structural modification of the original compound from high-throughput screening. Various analogues (2, 6, 9, 13, and 14) were synthesized and identified as caspase inhibitors, and

Liposome encapsulated berberine treatment attenuates cardiac dysfunction after myocardial infarction.

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Inflammation is a known mediator of adverse ventricular remodeling after myocardial infarction (MI) that may lead to reduction of ejection fraction and subsequent heart failure. Berberine is a isoquinoline quarternary alkaloid from plants that has been associated with anti-inflammatory,

Protective effect of protopine on the focal cerebral ischaemic injury in rats.

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Protopine, an isoquinoline alkaloidis, is known to produce many effects such as vasodilation, down-regulation of glutamate levels in brain and decrease of intracellular calcium. However, so far there is no report on the effect of protopine in cerebral ischaemia. In this study, the effect of

Neuroprotective effect of dauricine after transient middle cerebral artery occlusion in rats: involvement of Bcl-2 family proteins.

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Previous studies have shown that the bisbenzyl isoquinoline alkaloid dauricine can protect the brain against ischemic damage. We investigated here whether dauricine could inhibit neuronal apoptosis and modulate Bcl-2 family protein levels in a rat model of transient focal cerebral ischemia. Male

Potentiation of a survival signal in the ischemic heart by resveratrol through p38 mitogen-activated protein kinase/mitogen- and stress-activated protein kinase 1/cAMP response element-binding protein signaling.

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Resveratrol (3,4',5-trihydroxy-trans-stilbene), a naturally occurring polyphenolic compound found abundantly in grape skins and red wines, has been found to pharmacologically precondition the heart against ischemia reperfusion injury through the potentiation of a survival signal involving cAMP

Peptidomimetics - antagonists of the fibrinogen receptors: molecular design, structures, properties and therapeutic applications.

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The platelet aggregation is a crucial step in a pathophisiology of thromboses, leading to development of cardio-vascular diseases (myocardial infarction, transient ischemic attacks, strokes, etc.). The final step in the aggregation is the binding of fibrinogen to receptor - glycoprotein IIb/IIIa (GP

Coptisine protects rat heart against myocardial ischemia/reperfusion injury by suppressing myocardial apoptosis and inflammation.

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OBJECTIVE Protecting the heart from myocardial ischemia and reperfusion (I/R) damage is the focus of intense research. Coptisine is an isoquinoline alkaloid isolated from Coptidis Rhizoma. The present study investigated the potential effect of coptisine on myocardial I/R damage in rats and the

Stress-activated protein kinase phosphorylation during cardioprotection in the ischemic myocardium.

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Stress-activated protein kinases may be essential to cardioprotection. We assessed the role of p38 in an in vivo rat model of ischemia-reperfusion. Ischemic preconditioning (IPC) and the delta(1)-opioid receptor agonist 2-methyl-4aalpha-(3-hydroxyphenyl)-1,2,3,4,4a,5,12,12aalpha-octahydroquinolino

The positron emission tomography ligand DAA1106 binds with high affinity to activated microglia in human neurological disorders.

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Chronic microglial activation is an important component of many neurological disorders, and imaging activated microglia in vivo will enable the detection and improved treatment of neuroinflammation. 1-(2-chlorphenyl)-N-methyl-N-(1-methylpropyl)-3-isoquinoline-carbox-amide (PK11195), a peripheral

Cardioprotective effect of berberine against myocardial ischemia/reperfusion injury via attenuating mitochondrial dysfunction and apoptosis.

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Berberine, an isoquinoline alkaloid originally isolated from the Chinese herb Coptischinensis, has been shown to display a wide range of pharmacological effects. The present study aims to investigate the effect of berberine on myocardial ischemia/reperfusion. Sixty male Sprague-Dawley rats were

Berberine protects rat heart from ischemia/reperfusion injury via activating JAK2/STAT3 signaling and attenuating endoplasmic reticulum stress.

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OBJECTIVE Berberine (BBR), an isoquinoline-derived alkaloid isolated from Rhizoma coptidis, exerts cardioprotective effects. Because endoplasmic reticulum (ER) stress plays a pivotal role in myocardial ischemia/reperfusion (MI/R)-induced apoptosis, it was interesting to examine whether the

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