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https://www.readbyqxmd.com/read/28225060/new-limits-of-secondary-%C3%AE-relaxation
#1
Satya N Tripathy, Marzena Rams-Baron, Zaneta Wojnarowska, Justyna Knapik-Kowalczuk, Marian Paluch
Glass is an ultraviscous liquid that ceases to flow on a laboratory timescale but continues to relax on a geological timescale. Quintessentially, it has become hopeless for humans to explore the equilibrium behavior of glass, although the technology of glass making witness a remarkable advance. In this work, we propose a novel thermodynamic path to prepare a high density amorphous state of matter (carvedilol dihydrogen phosphate) using high pressure. In addition, we provide the impeccable experimental evidence of heterogeneous nature of secondary β-relaxation and probe its properties to understand the various aspects of pressure densified glass, such as dynamics, packing and disorder...
February 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28213164/carvedilol-use-is-associated-with-improved-survival-in-patients-with-liver-cirrhosis-and-ascites
#2
Rohit Sinha, Khalida A Lockman, Nethmee Mallawaarachchi, Marcus Robertson, John N Plevris, Peter C Hayes
BACKGROUND AND AIMS: Carvedilol, a non-selective beta-blocker (NSBB) with additional anti-alpha 1 receptor activity, is a potent portal hypotensive agent. It has been used as prophylaxis against variceal bleed. However, its safety in decompensated liver cirrhosis with ascites is still disputed. In this study, we examined whether long-term use of carvedilol in the presence of ascites is a risk factor for mortality. METHODS: This was a single-centre retrospective analysis of 325 consecutive patients with liver cirrhosis and ascites presenting to our Liver Unit between 1(st) of January 2009 to 31(st) August 2012...
February 14, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28211304/granisetron-and-carvedilol-can-protect-experimental-rats-againstadjuvant-induced-arthritis
#3
Yasmin Moustafa Ahmed, Basim Anwar Shehata Messiha, Ali Ahmed Abo-Saif
CONTEXT: Rheumatoid arthritis (RA), a disabling autoimmune disorder of the joints as well as other organs, affects about 1% of population. Unfortunately, all current treatments of RA cause severe gastrointestinal, renal and other complications. OBJECTIVE: We aimed to evaluate the possible antiarthritic effects of a serotonin 5-HT3 receptor blocker, granisetron, and a nonselective adrenergic receptor blocker, carvedilol, on complete Freund's adjuvant-induced RA in adult female albino rats...
April 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28188000/effectiveness-of-a-management-program-for-outpatient-clinic-or-remote-titration-of-beta-blockers-in-crt-patients-the-restore-study
#4
Antonio D'Onofrio, Pietro Palmisano, Antonio Rapacciuolo, Ernesto Ammendola, Leonardo Calò, Antonio Ruocco, Valter Bianchi, Fabio Maresca, Giuseppe Del Giorno, Annamaria Martino, Ciro Mauro, Monica Campari, Sergio Valsecchi, Michele Accogli
BACKGROUND: Many patients fail to receive β-blockers before cardiac resynchronization therapy defibrillator (CRT-D) implantation, or receive them at a suboptimal dose, and require optimization after implantation. We assessed the effectiveness of a structured program for β-blocker titration in CRT-D patients followed up by means of conventional in-clinic visits or remote monitoring. METHODS AND RESULTS: 130 patients undergoing CRT implantation and treated according to the standard practice of the centers were included as a control group...
February 5, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28185991/formulation-and-characterization-of-nanofibers-and-films-with-carvedilol-prepared-by-electrospinning-and-solution-casting-method
#5
Marko Krstić, Marija Radojević, Dušica Stojanović, Vesna Radojević, Petar Uskoković, Svetlana Ibrić
The preparation and characterization of films and nanofibers with carvedilol as a poorly water-soluble drug in poly (ethylene oxide) (PEO) polymer were investigated. Films are prepared by solution casting method, and nanofibers by electrospinning from a polymer solution. Water and mixture of ethanol and water were used as solvents. FT-IR analysis of the samples showed that there was no interaction between the polymer and the drug substance. DSC analysis revealed that carvedilol was dissolved in the polymer and influenced the degree of crystallinity of PEO...
February 6, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28181117/cyp2d6-genetic-variation-and-beta-blocker-maintenance-dose-in-patients-with-heart-failure
#6
Jasmine A Luzum, Kevin M Sweet, Philip F Binkley, Tara J Schmidlen, Joseph P Jarvis, Michael F Christman, Wolfgang Sadee, Joseph P Kitzmiller
PURPOSE: This study examined whether a CYP2D6 polymorphism (CYP2D6*4) was related to beta-blocker maintenance dose in patients with heart failure. METHODS: Logistic regression modeling was utilized in a retrospective chart-review analysis of heart-failure patients (60% Male, 90% of European descent) to assess whether CYP2D6*4 (non-functional CYP2D6 allele present in 1 of 5 individuals of European descent) is associated with maintenance dose of carvedilol (n = 65) or metoprolol (n = 33)...
February 8, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28155135/influence-of-peroxide-impurities-in-povidone-on-the-stability-of-selected-%C3%AE-blockers-with-the-help-of-hplc
#7
Saklecha Prachi, Chaudhary Komal, Mehta J Priti
A present study was conducted to investigate compatibility of β-blocker drugs( like atenolol, labetalol hydrochloride, bisoprolol fumarate, metoprolol succinate, carvedilol and propranolol hydrochloride) with the pharmaceutical excipient povidone. To check the influence of peroxide impurity present in povidone on the stability of β-blockers, a binary mixture technique has been adopted. The binary mixtures (1:1) of β-blockers with povidone excipient were stored for the duration of 6 months at accelerated conditions (40°C and 75% RH) and analyzed with the technique of high-performance liquid chromatography (HPLC)...
February 2, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28141699/cardioprotective-effects-of-carvedilol-in-inhibiting-doxorubicin-induced-cardiotoxicity
#8
Maryam Nabati, Ghasem Janbabai, Saideh Baghyari, Maryam Esmaili, Jamshid Yazdani
PURPOSE: Anthracyclines (ANTs) are a class of active anti-neoplastic agents with topoisomerase-interacting activity that are considered the most active agents for the treatment of breast cancer. We investigated the efficacy of carvedilol in the inhibition of ANT-induced cardiotoxicity. METHODS: In this randomized, single-blind, placebo-controlled study, 91 women with recently diagnosed breast cancer undergoing ANT therapy were randomly assigned to groups treated with either carvedilol (n=46) or placebo (n=45)...
January 30, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28119104/carvedilol-loaded-nanocapsules-mucoadhesive-properties-and-permeability-across-the-sublingual-mucosa
#9
Paula Dos Santos Chaves, Aline Ferreira Ourique, Luiza Abrahão Frank, Adriana Raffin Pohlmann, Sílvia Stanisçuaski Guterres, Ruy Carlos Ruver Beck
Carvedilol is a drug used to treat heart failure, hypertension, and coronary artery diseases . However, it has low oral bioavailability (25-35%) due to its high first-pass hepatic metabolism. The objective of this study was to develop carvedilol-loaded mucoadhesive nanocapsules as delivery systems for the sublingual administration of the drug. Nanocapsules were prepared using poly(ε-caprolactone) (CAR-LNC) and Eudragit® RS 100 (CAR-NC) as polymeric wall. In vitro interaction of formulations with mucin was performed to predict their mucoadhesion capacity...
January 21, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28114735/effects-of-type-2-diabetes-mellitus-in-patients-on-treatment-with-glibenclamide-and-metformin-on-carvedilol-enantiomers-metabolism
#10
Glauco H B Nardotto, Eduardo B Coelho, Carlos E Paiva, Vera L Lanchote
Carvedilol is available in clinical practice as a racemate in which (S)-(-)-carvedilol is a β- and α1 -adrenergic antagonist and (R)-(+)-carvedilol is only an α1 -adrenergic antagonist. Carvedilol is mainly metabolized by glucuronidation, by CYP2D6 to hydroxyphenylcarvedilol (OHC), and by CYP2C9 to O-desmethylcarvedilol (DMC). This study evaluated the pharmacokinetics of carvedilol enantiomers and their metabolites OHC and DMC in healthy volunteers (n = 13) and in type 2 diabetes mellitus patients with good glycemic control (n = 13)...
January 23, 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28099882/the-35-year-odyssey-of-beta-blockers-in-cirrhosis-any-gender-difference-in-sight
#11
REVIEW
Maria Antonella Burza, Hanns-Ulrich Marschall, Laura Napoleone, Antonio Molinaro
Cirrhosis is the end-stage of chronic liver disease and leads to the development of portal hypertension and its complications such as esophagogastric varices. Non-selective beta blockers (NSBB) are the keystone for the treatment of portal hypertension since the 1980s and, over the decades, several studies have confirmed their beneficial effect on the prevention of variceal (re)bleeding. Pharmacological studies showed effects of gender, sex hormones, oral contraceptives, and pregnancy on cytochrome P450 (CYPs) enzymes that metabolise NSBB, suggesting that gender differences might exist in the effect of NSBB...
January 15, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28087848/correction-to-early-administration-of-carvedilol-protected-against-doxorubicin-induced-cardiomyopathy
#12
(no author information available yet)
No abstract text is available yet for this article.
February 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28073770/impact-of-beta-blocker-initiation-timing-on-mortality-risk-in-patients-with-diabetes-mellitus-undergoing-noncardiac-surgery-a-nationwide-population-based-cohort-study
#13
Ray-Jade Chen, Hsi Chu, Lung-Wen Tsai
BACKGROUND: Relevant clinical studies have been small and have not convincingly demonstrated whether the perioperative initiation of beta-blockers should be considered in patients with diabetes mellitus undergoing noncardiac surgery. METHODS AND RESULTS: In this nationwide propensity score-matched study, we included patients with diabetes mellitus undergoing noncardiac surgery between 2000 and 2011 from Taiwan's National Health Insurance Research Database. Patients were classified as beta-blocker and non-beta-blocker cohorts...
January 10, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28069789/hypotension-induced-by-the-concomitant-use-of-a-calcium-channel-blocker-and-clarithromycin
#14
Sayako Takeuchi, Yuki Kotani, Toshihide Tsujimoto
In the elderly, calcium-channel blockers are the first-line treatment for hypertension, and macrolides are commonly prescribed antibiotics. Here we report a 78-year-old man taking nifedipine, diltiazem and carvedilol who presented with persistent hypotension and bradycardia after clarithromycin was prescribed. He was diagnosed with drug-induced hypotension and treated with fluid resuscitation and vasoactive agents. His symptoms gradually improved. He was transferred out of the intensive care unit 3 days after hospitalisation...
January 9, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28064425/enantioselective-resolution-of-r-s-carvedilol-to-s-carvedilol-by-biocatalysts
#15
Swetha Ettireddy, Vijitha Chandupatla, Ciddi Veeresham
Among the microorganisms employed in the study, Aspergillus niger (GUFCC5443), Escherichia coli (ATCC9637), Streptomyces halstedii (CKM-2), Pseudomonas putida (NCIB9494), Cunninghamella elegans (NCIM689) and Sphingomonas paucimobilis (NCTC11030) were capable for the enantioselective conversion of racemic Carvedilol. Immobilization technique enhanced the enantioselectivity of microorganisms and thus increased the enantiomeric purity of the drug. Excellent enantiomeric ratios (E) were found in reactions catalyzed by immobilized A...
January 7, 2017: Natural Products and Bioprospecting
https://www.readbyqxmd.com/read/28052623/prevention-and-treatment-of-variceal-haemorrhage-in-2017
#16
REVIEW
Felix Brunner, Annalisa Berzigotti, Jaime Bosch
Variceal haemorrhage is a major complication of portal hypertension that still causes high mortality in patients with cirrhosis. Improved knowledge of the pathophysiology of portal hypertension has recently led to a more comprehensive approach to prevent all the complications of this condition. Thus, optimal treatment of portal hypertension requires a strategy that takes into account the clinical stage of the disease and all the major variables that affect the risk of progression to the next stage and death...
January 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28052289/the-pharmacokinetic-interaction-study-between-carvedilol-and-bupropion-in-rats
#17
Maria Bianca Abrudan, Dana Maria Muntean, Ana Maria Gheldiu, Maria Adriana Neag, Laurian Vlase
BACKGROUND/AIMS: The effects of multiple-dose bupropion on the pharmacokinetics of single-dose carvedilol were investigated in order to evaluate this possible drug-drug interaction. METHODS: A preclinical study was conducted among white male Wistar rats. Each rat was cannulated on the femoral vein prior to being connected to BASi Culex ABC®. During the reference period, each rat received an intravenous and an oral dose of 3.57 mg/kg body weight (b.w.) carvedilol, at 2 days distance...
January 5, 2017: Pharmacology
https://www.readbyqxmd.com/read/28052002/circulating-mir-1-as-a-potential-biomarker-of-doxorubicin-induced-cardiotoxicity-in-breast-cancer-patients
#18
Vagner Oliveira-Carvalho Rigaud, Ludmila R P Ferreira, Silvia M Ayub-Ferreira, Mônica S Ávila, Sara M G Brandão, Fátima D Cruz, Marília H H Santos, Cecilia B B V Cruz, Marco S L Alves, Victor S Issa, Guilherme V Guimarães, Edécio Cunha-Neto, Edimar A Bocchi
Cardiotoxicity is associated with the chronic use of doxorubicin leading to cardiomyopathy and heart failure. Identification of cardiotoxicity-specific miRNA biomarkers could provide clinicians with a valuable prognostic tool. The aim of the study was to evaluate circulating levels of miRNAs in breast cancer patients receiving doxorubicin treatment and to correlate with cardiac function. This is an ancillary study from "Carvedilol Effect on Chemotherapy-induced Cardiotoxicity" (CECCY trial), which included 56 female patients (49...
January 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28041715/evaluating-the-effectiveness-of-different-beta-adrenoceptor-blockers-in-heart-failure-patients
#19
Tien-Yu Lin, Chung-Yu Chen, Yaw-Bin Huang
BACKGROUND: According to guidelines and pivotal trials, β-blockers are associated with better survival in patients with heart failure (HF). However, the superiority of any β-blockers is still unclear. METHODS: This retrospective cohort study was conducted using the National Health Insurance Research Database in Taiwan to evaluate the effectiveness of β-blockers and compare the clinical outcomes of different β-blockers in patients with HF. We enrolled patients diagnosed with HF between 2005 and 2012...
March 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28017186/carvedilol-does-not-reduce-cocaine-use-in-methadone-maintained-cocaine-users
#20
Mehmet Sofuoglu, James Poling, Theresa Babuscio, Kishorchandra Gonsai, Kevin Severino, Charla Nich, Kathleen M Carroll
INTRODUCTION: The goal of this study was too test the efficacy of carvedilol (CAR), an adrenergic blocker, for reducing cocaine use in individuals with cocaine use disorder (CUD). We conducted a 17-week, double-blind, randomized controlled trial with 3 treatment arms: 25mg CAR, 50mg CAR, and placebo. METHODS: One hundred and six treatment-seeking opioid and cocaine-dependent participants, who were also maintained on methadone during study participation, were randomized to placebo (n=34), 25mg/day CAR (n=37) or 50mg/day CAR (n=35)...
February 2017: Journal of Substance Abuse Treatment
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