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Journal of Cardiovascular Pharmacology and Therapeutics

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https://www.readbyqxmd.com/read/28399647/%C3%AE-blockers-cocaine-and-the-unopposed-%C3%AE-stimulation-phenomenon
#1
John R Richards, Judd E Hollander, Edward A Ramoska, Fareed N Fareed, I Charles Sand, María Manuela Izquierdo Gómez, Richard A Lange
Cocaine abuse remains a significant worldwide health problem. Patients with cardiovascular toxicity from cocaine abuse frequently present to the emergency department for treatment. These patients may be tachycardic, hypertensive, agitated, and have chest pain. Several pharmacological options exist for treatment of cocaine-induced cardiovascular toxicity. For the past 3 decades, the phenomenon of unopposed α-stimulation after β-blocker use in cocaine-positive patients has been cited as an absolute contraindication, despite limited and inconsistent clinical evidence...
May 2017: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/27807222/the-emerging-role-of-thioredoxin-interacting-protein-in-myocardial-ischemia-reperfusion-injury
#2
Bing F Wang, Jun Yoshioka
Myocardial ischemia/reperfusion injury represents a major threat to human health and contributes to adverse cardiovascular outcomes worldwide. Despite the identification of numerous molecular mechanisms, understanding of the complex pathophysiology of this clinical syndrome remains incomplete. Thioredoxin-interacting protein (Txnip) has been of great interest in the past decade since it has been reported to be a critical regulator in human diseases with several important cellular functions. Thioredoxin-interacting protein binds to and inhibits thioredoxin, a redox protein that neutralizes reactive oxygen species (ROS), and through its interaction with thioredoxin, Txnip sensitizes cardiomyocytes to ROS-induced apoptosis...
May 2017: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28443376/remote-ischemic-conditioning-and-renal-protection
#3
Georgios Giannopoulos, Dimitrios A Vrachatis, Vasiliki Panagopoulou, Manolis Vavuranakis, Michael W Cleman, Spyridon Deftereos
Over the course of the last 2 decades, the concept of remote ischemic conditioning (RIC) has attracted considerable research interest, because RIC, in most of its embodiments offers an inexpensive way of protecting tissues against ischemic damage inflicted by a number of medical conditions or procedures. Acute kidney injury (AKI) is a common side effect in the context of various medical procedures, and RIC has been suggested as a means of reducing its incidence. Outcomes regarding kidney function have been reported in numerous studies that evaluated the effects of RIC in a variety of settings (eg, cardiac surgery, interventions requiring intravenous administration of contrast media)...
January 1, 2017: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28421834/long-term-testosterone-therapy-improves-cardiometabolic-function-and-reduces-risk-of-cardiovascular-disease-in-men-with-hypogonadism
#4
Abdulmaged M Traish, Ahmad Haider, Karim Sultan Haider, Gheorghe Doros, Farid Saad
OBJECTIVES: In the absence of large, prospective, placebo-controlled studies of longer duration, substantial evidence regarding the safety and risk of testosterone (T) therapy (TTh) with regard to cardiovascular (CV) outcomes can only be gleaned from observational studies. To date, there are limited studies comparing the effects of long-term TTh in men with hypogonadism who were treated or remained untreated with T, for obvious reasons. We have established a registry to assess the long-term effectiveness and safety of T in men in a urological setting...
January 1, 2017: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28403647/parathyroid-hormone-related-peptide-a-novel-endocrine-cardioprotective-conditioning-mimetic
#5
Tanuka Datta, Karin Przyklenk, Nabanita S Datta
An as-yet limited body of evidence suggests that calcium-regulating endocrine hormones-in particular, parathyroid hormone-related peptide (PTHrP)-may have unappreciated cardioprotective effects. The current review focuses on the concept that PTHrP may, via modulation of classic cardioprotective signaling pathways, provide a novel strategy to attenuate myocardial ischemia-reperfusion injury.
January 1, 2017: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28399648/the-highly-selective-caspase-1-inhibitor-vx-765-provides-additive-protection-against-myocardial-infarction-in-rat-hearts-when-combined-with-a-platelet-inhibitor
#6
Xi-Ming Yang, James M Downey, Michael V Cohen, Nicole A Housley, Diego F Alvarez, Jonathon P Audia
Use of ischemic postconditioning and other related cardioprotective interventions to treat patients with acute myocardial infarction (AMI) has failed to improve outcomes in clinical trials. Because P2Y12 inhibitors are themselves postconditioning mimetics, it has been postulated that the loading dose of platelet inhibitors routinely given to patients treated for AMI masks the anti-infarct effect of other intended cardioprotective interventions. To further improve outcomes of patients with AMI, an intervention must be able to provide additive protection in the presence of a P2Y12 platelet inhibitor...
January 1, 2017: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28395520/ischemic-conditioning-in-kidney-transplantation
#7
Kristin Veighey, Raymond MacAllister
Ischemia-reperfusion injury is a composite of the injury sustained during a period of reduced or absent blood flow to a tissue or organ and the additional insult sustained on reperfusion, which limits the amount of tissue that can be salvaged. Ischemia-reperfusion injury is the predominant insult during kidney transplantation, contributing to graft dysfunction, increased rates of acute rejection, and reduced rejection-free graft survival. In this review, we discuss the potential therapeutic benefits of a cost-effective and low-risk intervention, ischemic preconditioning, and its potential for improving kidney function following transplantation...
January 1, 2017: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28381122/argon-exposure-induces-postconditioning-in-myocardial-ischemia-reperfusion
#8
Sandrine Lemoine, Katrien Blanchart, Mathieu Souplis, Adrien Lemaitre, Damien Legallois, Laurent Coulbault, Christophe Simard, Stéphane Allouche, Jacques H Abraini, Jean-Luc Hanouz, René Rouet, Laurent Sallé, Romain Guinamard, Alain Manrique
BACKGROUND AND PURPOSE: Cardioprotection against ischemia-reperfusion (I/R) damages remains a major concern during prehospital management of acute myocardial infarction. Noble gases have shown beneficial effects in preconditioning studies. Because emergency proceedings in the context of myocardial infarction require postconditioning strategies, we evaluated the effects of argon in such protocols on mammalian cardiac tissue. EXPERIMENTAL APPROACHES: In rat, cardiac I/R was induced in vivo by transient coronary artery ligature and cardiac functions were evaluated by magnetic resonance imaging...
January 1, 2017: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28381115/remote-ischemic-conditioning-for-patients-with-stemi
#9
Michael Rahbek Schmidt, Mathis Ersted Rasmussen, Hans Erik Bøtker
ST-segment elevation myocardial infarction (STEMI) remains a leading cause of death and morbidity, despite declining incidence and improved short-term outcome in many countries. Although mortality declines in developed countries with easy and fast access to optimized treatment, development of heart failure often remains a challenge in survivors and still approaches 10% at 1 year. Rapid admission and acute interventional treatment combined with modern antithrombotic pharmacologic therapy frequently establish complete reperfusion and acutely stabilize the patient, but the reperfusion itself adds further to the damage in the myocardium compromising the long-term outcome...
January 1, 2017: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28381098/remote-preconditioning-and-vascular-surgery
#10
Donagh A Healy, Stewart R Walsh
Remote ischemic preconditioning (RIPC) is a theoretically attractive strategy for organ protection; and phase 2 studies in a variety of settings have yielded promising results. In this article, we review the existing clinical studies on RIPC in vascular surgery. We examine aspects of design that may potentially be optimized in future vascular surgery studies and we highlight some challenges that have emerged since the publication of the Remote Ischaemic Preconditioning for Heart Surgery (RIPHeart) trial and the Effect of Remote Ischaemic Preconditioning on Clinical Outcomes in Patients Undergoing Coronary Artery Bypass Surgery (ERICCA) trial...
January 1, 2017: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28381093/rat-models-of-ventricular-fibrillation-following-acute-myocardial-infarction
#11
Laura A Hundahl, Jacob Tfelt-Hansen, Thomas Jespersen
A number of animal models have been designed in order to unravel the underlying mechanisms of acute ischemia-induced arrhythmias and to test compounds and interventions for antiarrhythmic therapy. This is important as acute myocardial infarction (AMI) continues to be the major cause of sudden cardiac death, and we are yet to discover safe and effective treatments of the lethal arrhythmias occurring in the acute setting. Animal models therefore continue to be relevant for our understanding and treatment of acute ischemic arrhythmias...
January 1, 2017: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28376665/thinking-outside-the-box
#12
Judith Ingles, Chandrashekara N Kyathanahalli, Pancharatnam Jeyasuria, Jennifer C Condon
A broad definition of preconditioning is "the preparation for a subsequent action." Mounting evidence demonstrates that novel remote preconditioning paradigms, in which protective stimuli experienced locally can capacitate systemic tolerance and enhanced cell viability upon exposure to ensuing cellular insults, have been largely successful in the field of cardiovascular ischemia/reperfusion injury. To ensure successful protective preconditioning, some models (including the uterus) have been demonstrated to activate the unfolded protein response (UPR), which is a cellular stress response controlled at the level of the endoplasmic reticulum...
January 1, 2017: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28376636/remote-ischemic-conditioning-in-elective-pci
#13
Joel P Giblett, Stephen P Hoole
This review examines the rationale for using remote ischemic conditioning (RIC) in elective percutaneous coronary intervention (PCI) to prevent procedure-related ischemia-reperfusion injury and justifies the importance of periprocedural biomarker elevation following elective PCI as a valid target for RIC. We review the evidence for the use of RIC as a treatment in this setting and document the salutary rules that must be followed to successfully translate RIC for clinical benefit.
January 1, 2017: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28361599/antianginal-therapy-for-stable-ischemic-heart-disease
#14
Santosh K Padala, Michael P Lavelle, Mandeep S Sidhu, Katherine P Cabral, Doralisa Morrone, William E Boden, Peter P Toth
Chronic angina pectoris is associated with considerable morbidity and mortality, especially if treated suboptimally. For many patients, aggressive pharmacologic intervention is necessary in order to alleviate anginal symptoms. The optimal treatment of stable ischemic heart disease (SIHD) should be the prevention of angina and ischemia, with the goal of maximizing both quality and quantity of life. In addition to effective risk factor modification with lifestyle changes, intensive pharmacologic secondary prevention is the therapeutic cornerstone in managing patients with SIHD...
January 1, 2017: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28325070/methotrexate-therapy-in-st-segment-elevation-myocardial-infarctions
#15
Daniel Medeiros Moreira, Maria Emilia Lueneberg, Roberto Leo da Silva, Tammuz Fattah, Carlos Antonio Mascia Gottschall
PURPOSE: Methotrexate is an anti-inflammatory drug that has been shown to have anti-ischemic effects. Our aim was to evaluate if methotrexate could reduce infarct size in patients with ST-segment elevation myocardial infarction (STEMI). METHODS: We randomly assigned patients with STEMI to receive either methotrexate or placebo. Primary outcome was infarct size determined by calculating the area under the curve (AUC) for creatine kinase (CK) release. Secondary outcomes were AUC of CK MB (CK-MB) and AUC of troponin I; peak CK, peak CK-MB, and troponin I; B-type natriuretic peptide (BNP) level, high-sensitivity C-reactive protein (hsCRP) result, and erythrocyte sedimentation rate (ESR); left ventricular ejection fraction (LVEF); thrombolysis in myocardial infarction (TIMI) frame count; Killip score; mortality and reinfarction incidence; and incidence of adverse reactions...
January 1, 2017: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28279076/triple-antithrombotic-therapy-with-aspirin-p2y12-inhibitor-and-warfarin-after-percutaneous-coronary-intervention
#16
Nathan J Verlinden, James C Coons, Carlo J Iasella, Sandra L Kane-Gill
BACKGROUND: Triple antithrombotic therapy is used in patients who require systemic anticoagulation and undergo percutaneous coronary intervention (PCI) requiring dual antiplatelet therapy. Bleeding with this combination is significant; however, few studies have described outcomes with the use of newer oral P2Y12 inhibitors in this setting. OBJECTIVES: We aimed to compare outcomes among patients prescribed triple therapy with prasugrel or ticagrelor compared to triple therapy with clopidogrel in patients who underwent PCI and required warfarin...
January 1, 2017: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28279072/aspirin-in-older-adults
#17
Mandi Sehgal, Sarah K Wood, Joseph G Ouslander, Charles H Hennekens
In the treatment or secondary prevention of cardiovascular disease (CVD), there is general consensus that the absolute benefits of aspirin far outweigh the absolute risks. Despite evidence from randomized trials and their meta-analyses, older adults, defined as aged 65 years or older, are less likely to be prescribed aspirin than their middle-aged counterparts. In primary prevention, the optimal utilization of aspirin is widely debated. There is insufficient randomized evidence among apparently healthy participants at moderate to high risk of a first CVD event, so general guidelines seem premature...
January 1, 2017: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28269995/zedoary-guaiane-type-sesquiterpenes-eluting-stents-accelerate-endothelial-healing-without-neointimal-hyperplasia-in-a-porcine-coronary-artery-model
#18
Yuanyuan Cui, Fuhai Zhao, Jiangang Liu, Xin Wang, Jianpeng Du, Dazhuo Shi, Keji Chen
OBJECTIVE: The effects of zedoary guaiane-type sesquiterpenes (ZGS)-based eluting stent (ZES) in accelerating reendothelialization and inhibiting neointimal hyperplasia were examined in a porcine coronary artery model. METHODS: The ZES was prepared by polymer-free 316L stainless metal stents. Sirolimus-eluting stents (SES) and bare metal stents (BMS) with identical platforms were used as controls. Stents with 15 mm in length and 2.0 to 3.5 mm in diameter were implanted in porcine coronary arteries...
January 1, 2017: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/27909014/sodium-4-phenylbutyrate-attenuates-myocardial-reperfusion-injury-by-reducing-the-unfolded-protein-response
#19
Osamu Takatori, Soichiro Usui, Masaki Okajima, Shuichi Kaneko, Hiroshi Ootsuji, Shin-Ichiro Takashima, Daisuke Kobayashi, Hisayoshi Murai, Hiroshi Furusho, Masayuki Takamura
BACKGROUND: The unfolded protein response (UPR) plays a pivotal role in ischemia-reperfusion (I/R) injury in various organs such as heart, brain, and liver. Sodium 4-phenylbutyrate (PBA) reportedly acts as a chemical chaperone that reduces UPR. In the present study, we evaluated the effect of PBA on reducing the UPR and protecting against myocardial I/R injury in mice. METHODS: Male C57BL/6 mice were subjected to 30-minute myocardial I/R, and were treated with phosphate-buffered saline (as a vehicle) or PBA...
December 1, 2016: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/27811198/the-efficacy-and-safety-of-edoxaban-for-vte-prophylaxis-post-orthopedic-surgery-a-systematic-review
#20
Lamia AlHajri, Sima Jabbari, Hind AlEmad, Khawla AlMahri, Maryam AlMahri, Noora AlKitbi
BACKGROUND: Venous thromboembolism (VTE) is a common complication that manifests during and/or after hospitalization, as well as postsurgeries including orthopedic surgeries. Edoxaban is a new oral direct factor Xa inhibitor that has been recently approved for treating VTE in patients who have already been treated with a parenteral anticoagulant and for the prevention of stroke and non-central nervous system systemic embolism in patients with nonvalvular atrial fibrillation. OBJECTIVES: The purpose of this systematic review was to evaluate the safety and efficacy of edoxaban for VTE prophylaxis after lower limb orthopedic surgery...
November 2, 2016: Journal of Cardiovascular Pharmacology and Therapeutics
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