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Journal of Cardiovascular Pharmacology

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https://www.readbyqxmd.com/read/29140957/beneficial-effects-of-angiotensin-1-7-on-cd34-cells-from-heart-failure-patients
#1
Colleen T Cole-Jeffrey, Carl J Pepine, Michael J Katovich, Maria B Grant, Mohan K Raizada, Sugata Hazra
The dysfunctional nature of CD34 cells from heart failure (HF) patients makes them unsuitable for autologous stem cell therapy. In view of evidence that the vasoprotective axis of the renin-angiotensin system (RAS) improves CD34 cell functions, we hypothesized that CD34 cells from HF patients will be dysfunctional and that Angiotensin-(1-7) [Ang-(1-7)] would improve their function. Peripheral blood was collected from NYHA class II-IV HF patients (n=31) and reference subjects (n=16). CD34 cell numbers from HF patients were reduced by 47% (p<0...
November 8, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/29112592/antihypertensive-therapy-and-new-on-set-of-diabetes-mellitus-the-double-edge-sword
#2
Reza Tabrizchi
No abstract text is available yet for this article.
October 31, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/29112591/pharmacokinetics-and-dynamics-of-low-intermediate-and-high-dose-landiolol-and-esmolol-during-long-term-infusion-in-healthy-caucasians
#3
Günther Krumpl, Ivan Ulč, Michaela Trebs, Pavla Kadlecová, Juri Hodisch, Gabriele Maurer, Bernhard Husch
The pharmacokinetics, pharmacodynamics, safety, and tolerability of long-term administration of esmolol and landiolol, a new fast-acting cardioselective β-blocker, were compared for the first time in Caucasian subjects in a prospective clinical trial.Twelve healthy volunteers received landiolol and esmolol by continuous infusion for 24 hr in a randomized crossover study using a dose-escalation regimen. Blood concentrations of drugs and metabolites, heart rate, blood pressure, ECG parameters and tolerability were observed for 30 hrs and compared...
October 31, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/29112590/effect-of-andrographolide-on-gene-expression-profile-and-intracellular-calcium-in-primary-rat-myocardium-microvascular-endothelial-cells
#4
Bo Feng, Qian Zhang, Xin Wang, Xiangwan Sun, Xiang Mu, Hong Dong
Andrographolide (ANDRO) is a diterpene lactone compound with extensive biological effects, such as antibacterial, antitumor and treatment of cardiovascular diseases. Until now, studies on the pharmacological functions of ANDRO are still in progress. However, little is known about the gene expression profile and calcium response of endothelial cells to ANDRO. In this study, we used a microarray technology to investigate the gene expression responses in primary rat myocardium microvascular endothelial cells (RMMECs) treated with 10μg/mL ANDRO...
October 31, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/29112589/androgens-mediate-%C3%AE-adrenergic-vasorelaxation-impairment-via-adenylyl-cyclase
#5
O A López-Canales, M C Castillo-Hernández, H Vargas-Robles, A Rios, J S López-Canales, B Escalante
Cardiovascular disease development has been associated with gender differences, suggesting that sex hormones are implicated in vascular function and development of hypertension. Vascular tone comparison at different stages of rat growth represents a good model to study testosterone-related vascular response. We explored the role of testosterone in modulation of age-dependent impaired β-adrenergic vasodilation.The 3 week-old male Sprague-Dawley rats were sorted in 3 week-old rats without any manipulation and 3 week-old rats treated with testosterone...
October 31, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/29076887/the-use-of-levosimendan-in-cardiac-surgery-an-update-after-the-levo-cts-cheetah-and-licorn-trials-in-the-light-of-clinical-practice
#6
Fabio Guarracino, Matthias Heringlake, Bernard Cholley, Dominique Bettex, Stefaan Bouchez, Vladimir V Lomivorotov, Angela Rajek, Matti Kivikko, Piero Pollesello
Levosimendan is a calcium sensitizer and ATP-dependent potassium channel opener which exerts sustained hemodynamic, symptomatic and organ-protective effects. It is registered for the treatment of acute heart failure, and when inotropic support is considered appropriate. In the past fifteen years, levosimendan has been widely used in clinical practice, and has also been tested in clinical trials to stabilize at-risk patients undergoing cardiac surgery. Recently, three randomized, placebo-controlled, multicenter studies (LICORN, CHEETAH and LEVO-CTS) have been published reporting on the peri-operative use of levosimendan in patients with compromised cardiac ventricular function...
October 30, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/29095793/low-dose-sinapic-acid-abates-the-pyroptosis-of-macrophages-via-downregulation-of-lncrna-malat1-in-rats-with-diabetic-atherosclerosis
#7
Yong Han, Hong Qiu, Xing Pei, Yigang Fan, Hongyan Tian, Jie Geng
Pyroptosis is a type of programmed cell death, which has been associated with multiple inflammatory diseases including diabetic atherosclerosis (DA). The study aims to explore the role of sinapic acid (SA) in the pyroptosis of macrophages in diabetic atherosclerosis. Our results from the in vivo experiments showed that low-dose (≤ 50 mg/Kg) chronic SA adiministration suppressed serum endothelin 1 (ET-1) and interleukine-1β (IL-1β) contents, pyroptotic death of bone marrow derived macrophages (BMDMs), and the expression of pyroptotic proteins ASC, NRLP3 and Caspase-1...
October 27, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/29095792/important-role-of-endothelial-caveolin-1-in-the-protective-role-of-edh-against-no-mediated-nitrative-stress-in-microcirculation-in-mice
#8
Hiroki Saito, Shigeo Godo, Saori Sato, Akiyo Ito, Yosuke Ikumi, Shuhei Tanaka, Tomoaki Ida, Shigemoto Fujii, Takaaki Akaike, Hiroaki Shimokawa
AIMS: Nitric oxide (NO) and endothelium-dependent hyperpolarization (EDH) play important roles in maintaining cardiovascular homeostasis. We have previously demonstrated that endothelial NO synthase (eNOS) plays diverse roles depending on vessel size, as a NO generating system in conduit arteries and an EDH-mediated system in resistance arteries, for which caveolin-1(Cav-1) is involved. However, the physiological role of endothelial Cav-1 in microvessels remains to be elucidated. METHODS AND RESULTS: We newly generated endothelium-specific Cav-1-knockout (eCav-1-KO) mice...
October 27, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/29068807/antiarrhythmic-effects-of-combining-dofetilide-and-ranolazine-in-a-model-of-acutely-induced-atrial-fibrillation-in-horses
#9
Helena Carstensen, Line Kjær, Maria Mathilde Haugaard, Mette Flethøj, Eva Zander Hesselkilde, Jørgen K Kanters, Steen Pehrson, Rikke Buhl, Thomas Jespersen
BACKGROUND: Antiarrhythmic compounds against atrial fibrillation (AF) often have reduced efficacy and may display cardiac and/or non-cardiac toxicity. Efficacy can be improved by combining two compounds with distinct mechanisms, and it may be possible to use lower doses of each compound, thereby reducing the likelihood of adverse side-effects. The purpose of this study was to investigate whether the effective doses of dofetilide and ranolazine can be reduced if the drugs are combined...
October 25, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/29064846/pre-and-post-conditioning-by-cardiac-glycosides-in-the-mouse-heart
#10
Qiming Duan, Yunhui Xu, Pauline Marck, Jennifer Kalisz, Eric E Morgan, Sandrine V Pierre
Ouabain preconditioning (OPC) initiated by low concentrations of the cardiac glycoside (CG) ouabain binding to Na/K-ATPase is relayed by a unique intracellular signaling and protects cardiac myocytes against ischemia/reperfusion (IR) injury. To explore more clinically applicable protocols based on CG properties, we tested whether the FDA-approved CG digoxin could trigger cardioprotective effects comparable to those of ouabain using PC and PostC protocols in the Langendorff-perfused mouse heart subjected to global ischemia and reperfusion...
October 23, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/29040151/sex-differences-in-vascular-reactivity-to-angiotensin-ii-during-the-evolution-of-myocardial-infarction
#11
Flores-Monroy Jazmín, Ramirez-Hernández Diana, Samano-Hernández Citali, Lezama-Martínez Diego, Sampieri-Cabrera Raul, Martínez-Aguilar Luisa
The influence of sex on the vascular response during the progression of myocardial infarction (MI) has not been extensively studied. In this work, we analyzed the differences of the vasoconstriction-induced by angiotensin II (Ang II) in the absence and presence of valsartan (200 nM) on the aortic rings of male and female Wistar rats at 2, 4, 24, and 48 h and 1, 2, 3, and 4 weeks after induction of MI. In the aortic rings of males an increase was observed in the contractile response that lasts up to 4 weeks; on females, this effect is diminished since 48 h until reaching sham group values at 2 weeks of coronary occlusion...
September 29, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28953106/levosimendan-in-advanced-heart-failure-where-do-we-stand
#12
Antonio Abbate, Benjamin W Van Tassell
No abstract text is available yet for this article.
September 25, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28953105/potential-medication-treatment-according-to-pathological-mechanisms-in-abdominal-aortic-aneurysm
#13
Shi-Lan Zhang, Xiao Du, Yan-Qiao Chen, Yuan-Sheng Tan, Ling Liu
Abdominal aortic aneurysm (AAA) is a vascular disease with high mortality. Due to lack of effective medications to stop or reverse the progression of AAA, surgical operation has become the most predominant recommendation of treatment for patients. There are many potential mechanisms, including inflammation, smooth muscle cell apoptosis, extracellular matrix degradation, oxidative stress and so on, involving in AAA pathogenesis. According to those mechanisms, some potential therapeutic drugs have been proposed and tested in animal models and even in clinical trials...
September 25, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28902664/comparison-of-the-inhibitory-mechanisms-of-diethyl-citrate-sodium-citrate-and-phosphonoformic-acid-on-calcification-induced-by-high-inorganic-phosphate-contents-in-mouse-aortic-smooth-muscle-cells
#14
Jian-Ming Ouyang, Chao-Yang Duan, Chong-Yu Zhang, Xin-Yuan Sun, Bao-Song Gui, Da Guo
OBJECTIVE: This study aimed to investigate the differences and inhibitory effects of diethyl citrate (Et2Cit), sodium citrate (Na3Cit), and phosphonoformic acid (PFA) on calcification induced by high inorganic phosphate (Pi) contents in mouse aortic smooth muscle cells (MOVAS) and to develop drugs that can induce anticoagulation and inhibit vascular calcification (VC). METHODS: Alive and fixed MOVAS were assessed for 14 days in the presence of high Pi with increasing Et2Cit, Na3Cit, and PFA concentrations...
September 11, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28877068/mc225-a-novel-probe-for-p-glycoprotein-pet-imaging-at-the-blood-brain-barrier-in-vitro-cardiovascular-safety-evaluation
#15
Fabio Fusi, Miriam Durante, Beatrice Gorelli, Maria Grazia Perrone, Colabufo Nicola Antonio, Simona Saponara
The P-glycoprotein (P-gp) substrate MC225, at concentrations ≤ 10 nM, is a valuable radiotracer for positron emission tomography (PET) imaging of P-gp function in rats and mice.The aim of this study was to evaluate its potential toxic hazard towards the cardiovascular system through an in-depth analysis of its effects on rat aorta rings, on CaV1.2 channel current (ICa1.2) of A7r5 cells and on Langendorff perfused rat heart.In aortic rings, MC225 relaxed phenylephrine-induced contraction in a concentration-dependent and endothelium-independent manner, with an IC50 value of about 1 µM...
September 1, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28858907/nucleoligands-repurposing-gpcr-ligands-to-modulate-nuclear-localized-gpcrs-in-the-cardiovascular-system
#16
Nicolas Audet, Rabah Dabouz, Bruce G Allen, Terence E Hébert
There is significant evidence that internal pools of GPCRs exist and may be affected by both endogenous signaling molecules and hydrophobic pharmaceutical ligands, once assumed to only affect cell surface versions of these receptors. Here, we discuss evidence that the biology of nuclear GPCRs in particular is complex, rich and highly interactive with GPCR signalling from the cell surface. Caging existing GPCR ligands may be an excellent means of further stratifying the phenotypic effects of known pharmacophores such as β-adrenergic, angiotensin II and type B endothelin receptor ligands in the cardiovascular system...
August 29, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/29112047/memantine-an-nmda-receptor-antagonist-prevents-thyroxin-induced-hypertension-but-not-cardiac-remodeling
#17
Steven J Repas, Nancy S Saad, Paul M L Janssen, Mohammad T Elnakish
Stimulation of glutamatergic tone has been causally linked to myocardial pathogenesis and amplified systemic blood pressure (BP). Memantine, a noncompetitive N-methyl-D-aspartate glutamatergic receptor (NMDA-R) antagonist, has been proposed to be an active cardioprotective drug. However, the efficacy of memantine and subsequently the possible involvement of the NMDA-R in the thyroxin (T4)-induced cardiovascular complications have never been investigated. We examined the effect of memantine (30 mg·kg·d) on the T4 (500 μg·kg·d)-provoked increase in mouse BP, cardiac hypertrophy indicated by enlarged overall myocardial mass, and reformed reactions of the contractile myocardium both in vivo and ex vivo after 2 weeks of treatment...
November 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28991880/folic-acid-impairs-the-uptake-of-5-methyltetrahydrofolate-in-human-umbilical-vascular-endothelial-cells
#18
Desiree Smith, Jacqueline Hornstra, Monica Rocha, Gerrit Jansen, Yehuda Assaraf, Inbal Lasry, Henk Blom, Yvo M Smulders
BACKGROUND: Adequate folate status supports endothelial structure and function. Folic acid (FA), an oxidized synthetic folate, which is present in the plasma of patients consuming fortified food or FA supplements, may impair cellular uptake of physiological, reduced folates. We studied the effect of FA on uptake of the dominant circulatory folate, 5-methyltetrahydrofolate (5MTHF) in endothelial cells. METHODS AND RESULTS: For short-term effects of FA, primary human umbilical vein endothelial cells (HUVECs) were maintained in growth medium containing 200 nM 5MTHF and preincubated with 20 nM FA 10 minutes before the 5MTHF uptake assessment...
October 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28991879/risks-versus-benefits-of-anticoagulation-for-atrial-fibrillation-in-cirrhotic-patients
#19
Jonggi Choi, Junhwan Kim, Ju Hyun Shim, Minsu Kim, Gi-Byoung Nam
BACKGROUND & AIMS: To evaluate the clinical benefits and risks of anticoagulation with warfarin in cirrhotic patients with atrial fibrillation (AF). METHODS: A total of 465 cirrhotic patients diagnosed with nonvalvular AF were retrospectively analyzed. We compared incidences of ischemic stroke and major bleeding events between the 2 groups and examined the factors predicting ischemic stroke or major bleeding events. RESULTS: Of 465 patients with AF, 113 (24...
October 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28991105/low-dose-aspirin-inhibits-cardiac-sympathetic-activation-and-vagal-withdrawal-response-to-morning-rising
#20
Tomiya Yasumasu, Kazuo Takahara, Yutaka Otsuji
Aspirin is known to interfere with platelet function and can protect individuals at risk of sudden death. However, this property of aspirin is less defined for cardiac autonomic activity. We assessed pulse rate variability by spectral analysis and measured plasma eicosanoid levels before and after administration of 81-mg aspirin to 12 healthy subjects over a 60-degree head-up tilt test in the morning. In upright posture, low-dose aspirin decreased both the normalized unit value of low-frequency (normalized LF) power (mean ± SD, 82...
October 2017: Journal of Cardiovascular Pharmacology
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