histamine/infarction

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Histamine deficiency exacerbates myocardial injury in acute myocardial infarction through impaired macrophage infiltration and increased cardiomyocyte apoptosis.

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Histamine is a biogenic amine that is widely distributed and has multiple functions, but the role it plays in acute myocardial infarction (AMI) remains unclear. In this study, we investigated the origin and contribution of endogenous histamine to AMI. Histidine decarboxylase (HDC) is the unique

[Relationship between serum histamine levels and ST-segment resolution in patients with acute myocardial infarction treated with primary percutaneous coronary intervention].

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OBJECTIVE To investigate the dynamic changes in serum histamine levels and their association with ST-segment resolution in patients with acute ST-segment elevation myocardial infarction (STEMI) treated with primary percutaneous coronary intervention (PCI). METHODS A total of 84 consecutive STEMI

Myocardial infarction and histamine release.

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On the basis of previous data suggesting the involvement of cardiac histamine in ischemic heart disease (IHD), we evaluated plasma histamine (H) and creatine-kinase isoenzyme (CK-MB) level in cardiac and healthy subjects. 20 patients with acute myocardial infarction (AMI) (10 developing AMI in

Enhanced adverse electrophysiologic effects of histamine after myocardial infarction in guinea pigs.

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To evaluate the electrophysiological sensitivity of infarcted myocardium to histamine, we used microelectrodes to study its effects in isolated guinea-pig left ventricles 1 hr (acute), 24 hr (subacute) and 4 to 6 weeks (chronic) after multiple (6-8) ligations of the left coronary artery system. In

Experimental cerebral infarction in primates: regional changes in brain histamine content.

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Histamine levels in different regions of the brain in the primate Macaca Radiata were studied following experimental infarction induced in the basal ganglia by coagulation of the middle cerebral artery. In the basal ganglia an elevation of histamine level was seen probably due to proliferation of

Effect of the histamine antagonist cimetidine on infarct size in the rat.

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We determined whether the histamine H2 antagonist cimetidine would reduce infarct volume in a model of photochemically-induced thrombotic infarction. Rats were pretreated with either vehicle (n = 6), 5.0 mg/kg cimetidine (n = 6), or 20.0 mg/kg (n = 6) cimetidine 30.0 min prior to infarct formation.

Serum histamine in Alzheimer's disease and multi-infarct dementia.

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Recent data indicate that a neuroimmune reaction might be responsible in part for neuronal death and cognitive deterioration in senile dementia. The potential involvement of brain histamine (HA) and interleukin-1 (IL-1) in this process has been previously documented. We have studied the

No Increase in Risk of Acute Myocardial Infarction in Privately Insured Adults Prescribed Proton Pump Inhibitors vs Histamine-2 Receptor Antagonists (2002-2014).

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Proton pump inhibitors (PPIs) are commonly used medications. Recent studies reported an increased risk of acute myocardial infarction (MI) in PPI users vs non-users. We evaluated MI risk associated with PPIs compared with histamine-2 receptor antagonists (H2RAs) in privately insured adults in the

The plant histaminase: a promising enzyme with antioxidant properties versus histamine release in isoprenaline-induced myocardial infarction in rats.

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The present study was designed to evaluate possible protective effects of purified histaminase from Lathyrus sativus L. seedling on the myocardial injuries upon isoprenaline-induced myocardial infarction in rats. In this regard, blood histamine concentration, creatine kinase-MB (CK-MB) activity,

Histamine deficiency facilitates coronary microthrombosis after myocardial infarction by increasing neutrophil-platelet interactions.

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Neutrophil-platelet interactions are responsible for thrombosis as well as inflammatory responses following acute myocardial infarction (AMI). While histamine has been shown to play a crucial role in many physiological and pathological processes, its effects on neutrophil-platelet interactions in

Aggravated myocardial infarction-induced cardiac remodeling and heart failure in histamine-deficient mice.

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Histamine has pleiotropic pathophysiological effects, but its role in myocardial infarction (MI)-induced cardiac remodeling remains unclear. Histidine decarboxylase (HDC) is the main enzyme involved in histamine production. Here, we clarified the roles of HDC-expressing cells and histamine in heart

Histamine H3 Receptor Agonist Imetit Attenuated Isoproterenol Induced Renin Angiotensin System and Sympathetic Nervous System Overactivity in Myocardial Infarction of Rats.

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BACKGROUND Myocardial infarction is an alarming health issue, needs great attention. The present study investigated the role of histamine-H3 receptor (H3R) agonist imetit in relationship to sympathetic and renin angiotensin system in Wistar rats. METHODS Subcutaneous injection of isoproterenol (85

Acute myocardial infarction enhances the portal venous histamine level in dogs.

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OBJECTIVE The aim of our experiments was to determine the plasma histamine level in the portal venous (VP) blood during acute coronary occlusion and reperfusion. METHODS 27 adult mongrel dogs of either sex were randomized for three groups: sham-operated controls, occlusion group (group O) and

[Levels of free histamine and total histamine in the intact myocardium and in myocardial infarct].

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Myocardial infarct-like lesions produced by histamine liberators in rats. Preliminary report.

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