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Dipyridamole

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https://www.readbyqxmd.com/read/29772738/angiogenesis-pet-tracer-uptake-68-ga-nodaga-e-crgdyk-%C3%A2-in-induced-myocardial-infarction-and-stromal-cell-treatment-in-minipigs
#1
Thomas Rasmussen, Bjarke Follin, Jens Kastrup, Malene Brandt-Larsen, Jacob Madsen, Thomas Emil Christensen, Morten Juhl, Smadar Cohen, Karsten Pharao Hammelev, Christian Holdflod Møller, Jens Peter Goetze, Philip Hasbak, Andreas Kjær
Angiogenesis is considered integral to the reparative process after ischemic injury. The αv β₃ integrin is a critical modulator of angiogenesis and highly expressed in activated endothelial cells. 68 Ga-NODAGA-E[(cRGDyK)]₂ (RGD) is a positron-emission-tomography (PET) ligand targeted towards αv β₃ integrin. The aim was to present data for the uptake of RGD and correlate it with histology and to further illustrate the differences in angiogenesis due to porcine adipose-derived mesenchymal stromal cell (pASC) or saline treatment in minipigs after induction of myocardial infarction (MI)...
May 16, 2018: Diagnostics
https://www.readbyqxmd.com/read/29752694/ginkgo-leaf-extract-and-dipyridamole-injection-as-adjuvant-treatment-for-angina-pectoris-a-meta-analysis-of-41-randomized-controlled-trials
#2
Di Tan, Jia-Rui Wu, Ying-Ying Cui, Yi Zhao, Dan Zhang, Shi Liu, Bing Zhang
OBJECTIVE: To provide information about the effectiveness and safety of Ginkgo Leaf Extract and Dipyridamole Injection (GD) as one adjuvant therapy for treating angina pectoris (AP) and to evaluate the relevant randomized controlled trials (RCTs) with meta-analysis. METHODS: RCTs concerning AP treated by GD were searched in China Biology Medicine Disc (SinoMed), PubMed, the China National Knowledge Infrastructure Database (CNKI), the Chinese Scientififi c Journals Database (VIP), Wanfang Database, Embase, and the Cochrane Library, from inception to February, 2017...
May 11, 2018: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/29749291/antithrombotic-therapy-in-pediatric-ventricular-assist-devices-multicenter-survey-of-the-european-excor-pediatric-investigator-group
#3
Oliver Miera, Katharina L Schmitt, Hakan Akintuerk, Angele Boet, Robert Cesnjevar, Teresa Chila, Thilo Fleck, Ranny Goldwasser, Luis G Guereta, Beatrice Heineking, Juergen Hoerer, Alexander Horke, Tain Y Hsia, Michael Huebler, Andrzej Kansy, Ann Karimova, Bohdan Maruszewski, Constancio Medrano, Szymon Pawlak, Zdenka Reinhardt, Birgitta Romlin, Eugen Sandica, Florian Schmidt, René Schramm, Martin Schweiger, Joanna Śliwka, Brigitte Stiller, Josef Thul, Antonio Amodeo
OBJECTIVES: Mechanical circulatory support for pediatric heart failure patients with the Berlin Heart EXCOR ventricular assist system is the only approved and established bridging strategy for recovery or heart transplantation. In recent years, the burden of thromboembolic events has led to modifications of the recommended antithrombotic therapy. Therefore, we aimed to assess modifications of antithrombotic practice among the European EXCOR Pediatric Investigator Group members. METHODS: We sent a questionnaire assessing seven aspects of antithrombotic therapy to 18 European hospitals using the EXCOR device for children...
May 1, 2018: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/29686931/analytical-method-development-and-validation-for-the-quantification-of-acetone-and-isopropyl-alcohol-in-the-tartaric-acid-base-pellets-of-dipyridamole-modified-release-capsules-by-using-headspace-gas-chromatographic-technique
#4
Sriram Valavala, Nareshvarma Seelam, Subbaiah Tondepu, V Shanmukha Kumar Jagarlapudi, Vivekanandan Sundarmurthy
A simple, sensitive, accurate, robust headspace gas chromatographic method was developed for the quantitative determination of acetone and isopropyl alcohol in tartaric acid-based pellets of dipyridamole modified release capsules. The residual solvents acetone and isopropyl alcohol were used in the manufacturing process of the tartaric acid-based pellets of dipyridamole modified release capsules by considering the solubility of the dipyridamole and excipients in the different manufacturing stages. The method was developed and optimized by using fused silica DB-624 (30 m × 0...
2018: Journal of Analytical Methods in Chemistry
https://www.readbyqxmd.com/read/29680437/treatment-of-restless-legs-syndrome-willis-ekbom-disease-with-the-non-selective-ent1-ent2-inhibitor-dipyridamole-testing-the-adenosine-hypothesis
#5
Diego Garcia-Borreguero, Xavier Guitart, Celia Garcia Malo, Irene Cano-Pumarega, Juan José Granizo, Sergi Ferré
OBJECTIVES: Recent animal models of restless legs syndrome (RLS) suggest that brain iron deficiency is associated with a hypoadenosinergic state, with downregulation of adenosine A1 receptors (A1R) in the striatum and cortex. We hypothesized that an increase in extracellular adenosine induced by inhibitors of adenosine transporters, such as the non-selective ENT1/ENT2 inhibitor dipyridamole, would result in an improvement in RLS symptoms. METHODS: In a prospective two-month open-label, non-placebo controlled clinical trial, 15 untreated idiopathic RLS patients began treatment with 100 mg dipyridamole (with uptitration to 400 mg if necessary)...
May 2018: Sleep Medicine
https://www.readbyqxmd.com/read/29651739/prognostic-utility-of-splenic-response-ratio-in-dipyridamole-pet-myocardial-perfusion-imaging
#6
Karan Bami, Shrankhala Tewari, Fadi Guirguis, Linda Garrard, Ann Guo, Alomgir Hossain, Terrence D Ruddy, Rob S B Beanlands, Robert A deKemp, Benjamin J W Chow, Girish Dwivedi
BACKGROUND: Cardiac magnetic resonance perfusion studies with adenosine stress have shown that splenic response can identify patients with inadequate pharmacologic stress. We investigate the incremental prognostic impact of splenic response ratio (SRR) in patients with normal Rubidium (Rb)-82 PET myocardial perfusion imaging (MPI). METHODS: Consecutive patients undergoing dipyridamole Rb-82 PET MPI for the evaluation of coronary artery disease were screened. Spleen and liver Rb-82 activity was measured and the SRR was calculated: SRR = (Spleen stress/Liver stress)/(Spleen rest/Liver rest)...
April 12, 2018: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/29629998/predictive-and-prognostic-value-of-left-ventricular-mechanical-dyssynchrony-assessed-by-myocardial-perfusion-single-photon-emission-computed-tomography-in-asymptomatic-patients-under-hemodialysis
#7
Federico Caobelli, Cristina E Popescu, Riccardo Laudicella, Alessio Comis, Salvatore A Pignata, Roberto Sara, Claudio Rossetti
BACKGROUND: Patients under hemodialysis (HD) have an increased risk of major adverse cardiac events (MACEs). In these patients, myocardial perfusion scintigraphy (MPS) provides useful prognostic information. Left ventricular mechanical dyssynchrony (LVD) has been proven to predict all-cause death in patients under HD. It remains unclear, whether the same prognostic value pertains also to the prediction of MACEs. PATIENTS AND METHODS: Ninety patients under HD (duration range: 2-216 months) with neither history nor symptoms of coronary artery disease at the time of MPS were retrospectively evaluated...
May 2018: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/29629708/dipyridamole-loaded-biodegradable-pla-nanoplatforms-as-coatings-for-cardiovascular-stents
#8
Veroniki Bakola, Varvara Karagkiozaki, Aikatherini-Rafailia Tsiapla, Foteini Pappa, Ioannis Moutsios, Eleni Pavlidou, Stergious Logothetidis
Cardiovascular Stents are commonly used for the treatment of Cardiovascular Diseases (CVDs) that in developed societies, are the most frequent causes of mortality and morbidity. Recent years, thorough research and development of Drug Eluting Stents (DES) has been done, with emphasis on coronary stenting to avoid the most common complication, the in-stent thrombosis. Dipyridamole (DPM) is a medication that inhibits blood clot formation. Drug Delivery Nanoplatforms consisting of biodegradable polymers can be fabricated via Electrospinning Deposition, known for its cost-effective and versatile advantages, that produces fibrous scaffolds able of sustainable and controllable drug release...
April 9, 2018: Nanotechnology
https://www.readbyqxmd.com/read/29625884/integration-of-wall-motion-coronary-flow-velocity-and-left-ventricular-contractile-reserve-in-a-single-test-prognostic-value-of-vasodilator-stress-echocardiography-in-patients-with-diabetes
#9
Lauro Cortigiani, Alda Huqi, Quirino Ciampi, Tonino Bombardini, Francesco Bovenzi, Eugenio Picano
BACKGROUND: Coronary flow velocity reserve (CFVR) and left ventricular contractile reserve (LVCR) have demonstrated prognostic importance in patients with diabetes. The aim of this study was to investigate the prognostic contribution of combined evaluation of CFVR and LVCR in patients with diabetes with nonischemic stress echocardiography. METHODS: Three hundred seventy-five patients with diabetes (mean age, 68 ± 9 years) with nonischemic dipyridamole stress echocardiography underwent assessment of CFVR of the left anterior descending coronary artery (prospectively) and LVCR with left ventricular force (retrospectively) in a multicenter study...
April 3, 2018: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/29623236/does-use-of-oral-anticoagulants-at-the-time-of-admission-affect-outcomes-following-hip-fracture
#10
Ariana Lott, Jack Haglin, Rebekah Belayneh, Sanjit R Konda, Philipp Leucht, Kenneth A Egol
Purpose: The purpose of this study was to compare hospital quality outcomes in patients over the age of 60 undergoing fixation of hip fracture based on their anticoagulation status. Materials and Methods: Patients aged 60 and older with isolated hip fracture injuries treated operatively at 1 academic medical center between October 2014 and September 2016 were analyzed. Patients on the following medications were included in the anticoagulation cohort: warfarin, clopidogrel, aspirin 325 mg, rivaroxaban, apixaban, dabigatran, and dipyridamole/aspirin...
2018: Geriatric Orthopaedic Surgery & Rehabilitation
https://www.readbyqxmd.com/read/29605629/tissue-muscle-perfusion-assessed-by-one-day-99m-tc-mibi-rest-dipyridamol-scintigraphy-in-non-diabetic-and-diabetic-patients
#11
N Manevska, S Stojanoski, D Pop Gjorceva, L Todorovska, M Vavlukis, V Majstorov
AIM: To determine the perfusion reserve of the lower limbs using the method99m Tc-MIBI (rest-dipyridamole) perfusion scintigraphy (one-day protocol) in the diagnostic evaluation of peripheral artery disease (PAD) in patients with and without diabetes mellitus (DM). MATERIAL AND METHODS: We performed tissue-muscle perfusion scintigraphy (TMPS) of the lower limbs, through one-day rest-dipyridamole protocol with99m Tc-MIBI in 24 patients, divided in two groups according to the presence of diabetes - patients with DM (Dp) 13/24 (54%), 2 males and 9 female patients, age 63±13 years and patients without DM (NDp) 11/24 (46%), 3 males and 10 females, age 61±14 years...
March 28, 2018: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/29595635/aspirin-plus-dipyridamole-has-the-highest-surface-under-the-cumulative-ranking-curves-sucra-values-in-terms-of-mortality-intracranial-hemorrhage-and-adverse-event-rate-among-7-drug-therapies-in-the-treatment-of-cerebral-infarction
#12
Jian-Jun Zhang, Xin Liu
BACKGROUND: The standardization for the clinical use of drug therapy for cerebral infarction (CI) has not yet determined in some aspects. In this paper, we discussed the efficacies of different drug therapies (aspirin, aspirin plus dipyridamole, aspirin plus clopidogrel, aspirin plus warfarin, cilostazol, warfarin, and ticlopidine) for CI. METHODS: We searched databases of PubMed and Cochrane Library from the inception to April, 2017, randomized controlled trials (RCTs) met the inclusion and exclusion criteria were enrolled in this study...
March 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29588811/effect-of-low-dose-aspirin-and-dipyridamole-on-primary-patency-of-arteriovenous-grafts-in-hemodialysis-patients-a-randomized-double-blind-placebo-controlled-trial
#13
Pouya Tayebi, Gholamhosein Kazemzadeh, Azin Banihashem, Hassan Ravari
Background: There is some evidence for the efficacy of antiplatelet therapies in increasing the vascular access patency duration or decreasing the thrombosis of arteriovenous grafts. Objective: To determine the effect of low dose aspirin and dipyridamole on primary patency of arteriovenous grafts in hemodialysis patients. Methods: This randomized, double-blind, placebo-controlled trial was done at Imam Reza Hospital in Mashhad, Iran from September 10, 2015 to July 05, 2016...
January 2018: Electronic Physician
https://www.readbyqxmd.com/read/29571163/performance-comparison-between-multienzymes-loaded-single-and-dual-electrodes-for-the-simultaneous-electrochemical-detection-of-adenosine-and-metabolites-in-cancerous-cells
#14
Khalil K Hussain, Mahmood H Akhtar, Moo-Hyun Kim, Dong-Keun Jung, Yoon-Bo Shim
The analytical performance of the multi enzymes loaded single electrode sensor (SES) and dual electrode sensor (DES) was compared for the detection of adenosine and metabolites. The SES was fabricated by covalent binding of tri-enzymes, adenosine deaminase (ADA), purine nucleoside phosphorylase (PNP), and xanthine oxidase (XO) along with hydrazine (Hyd) onto a functionalized conducting polymer [2,2:5,2-terthiophene-3-(p-benzoic acid)] (pTTBA). The enzyme reaction electrode in DES was fabricated by covalent binding of ADA and PNP onto pTTBA coated on Au nanoparticles...
March 15, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29556579/long-term-analysis-of-2-prospective-studies-that-incorporate-mitomycin-c-into-an-adjuvant-chemoradiation-regimen-for-pancreatic-and-periampullary-cancers
#15
Kathryn J Schunke, Lauren M Rosati, Marianna Zahurak, Joseph M Herman, Amol K Narang, Irina Usach, Alison P Klein, Charles J Yeo, Larry T Korman, Ralph H Hruban, John L Cameron, Daniel A Laheru, Ross A Abrams
Purpose: The purpose of this study was to report toxicity and long-term survival outcomes of 2 prospective trials evaluating mitomycin C (MMC) with 5-fluorouracil-based adjuvant chemoradiation in resected periampullary adenocarcinoma. Methods and materials: From 1996 to 2002, 119 patients received an adjuvant 4-drug chemotherapy regimen of 5-fluorouracil, leucovorin, MMC, and dipyridamole with chemoradiation on 2 consecutive trials (trials A and B). Trial A patients received upfront chemoradiation (50 Gy split-course, 2...
January 2018: Advances in Radiation Oncology
https://www.readbyqxmd.com/read/29540300/on-demand-manufacturing-of-patient-specific-liquid-capsules-via-co-ordinated-3d-printing-and-liquid-dispensing
#16
Tochukwu C Okwuosa, Cindy Soares, Verena Gollwitzer, Rober Habashy, Peter Timmins, Mohamed A Alhnan
A method for the production of liquid capsules with the potential of modifying drug dose and release is presented. For the first time, the co-ordinated use of fused deposition modelling (FDM), 3D printing and liquid dispensing to fabricate individualised dosage form on demand in a fully automated fashion has been demonstrated. Polymethacrylate shells (Eudragit EPO and RL) for immediate and extended release were fabricated using FDM 3D printing and simultaneously filled using a computer-controlled liquid dispenser loaded with model drug solution (theophylline) or suspension (dipyridamole)...
June 15, 2018: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29501323/antithrombotic-therapies-in-children-on-durable-ventricular-assist-devices-a-literature-review
#17
Joanna Y Huang, Paul Monagle, M Patricia Massicotte, Christina J VanderPluym
INTRODUCTION: Ventricular Assist Devices (VADs) are increasingly utilised in children with end-stage heart failure, and experience high bleeding and clotting rates. In particular, pediatric VAD patients are more challenging than adults to anticoagulate due to developmental hemostasis, lack of suitable drug preparations, and difficult anticoagulation monitoring often due to poor vascular access; in addition to difficulties of VAD design in smaller children. This review aims to summarize the current evidence related to antithrombotic therapy in pediatric VAD patients...
February 28, 2018: Thrombosis Research
https://www.readbyqxmd.com/read/29462984/mathematical-modelling-of-nitric-oxide-cyclic-gmp-cyclic-amp-signalling-in-platelets
#18
Rune Kleppe, Inge Jonassen, Stein Ove Døskeland, Frode Selheim
Platelet activation contributes to normal haemostasis but also to pathologic conditions like stroke and cardiac infarction. Signalling by cGMP and cAMP inhibit platelet activation and are therefore attractive targets for thrombosis prevention. However, extensive cross-talk between the cGMP and cAMP signalling pathways in multiple tissues complicates the selective targeting of their activities. We have used mathematical modelling based on experimental data from the literature to quantify the steady state behaviour of nitric oxide (NO)/cGMP/cAMP signalling in platelets...
February 19, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29435184/dipyridamole-decreases-dialysis-risk-and-improves-survival-in-patients-with-pre-dialysis-advanced-chronic-kidney-disease
#19
Ko-Lin Kuo, Szu-Chun Hung, Wei-Cheng Tseng, Jia-Sin Liu, Ming-Huang Lin, Chih-Cheng Hsu, Der-Cherng Tarng
Introduction: Dipyridamole decreases proteinuria and improves renal function progression in patients with glomerular disease through its inhibition of platelet activation and enhanced nitric oxide expression. Few studies have evaluated the effects of dipyridamole on renal outcome or survival in CKD stage 5 patients who have not yet received dialysis (CKD 5 ND). Materials and Methods: A prospective cohort study was conducted based on the Taiwan National Health Insurance Research Database...
January 12, 2018: Oncotarget
https://www.readbyqxmd.com/read/29428715/routine-clinical-anti-platelet-agents-have-limited-efficacy-in-modulating-hypershear-mediated-platelet-activation-associated-with-mechanical-circulatory-support
#20
Lorenzo Valerio, Jawaad Sheriff, Phat L Tran, William Brengle, Alberto Redaelli, Gianfranco B Fiore, Federico Pappalardo, Danny Bluestein, Marvin J Slepian
INTRODUCTION: Continuous flow ventricular assist devices (cfVADs) continue to be limited by thrombotic complications associated with disruptive flow patterns and supraphysiologic shear stresses. Patients are prescribed complex antiplatelet therapies, which do not fully prevent recurrent thromboembolic events. This is partially due to limited data on antiplatelet efficacy under cfVAD-associated shear conditions. MATERIALS AND METHODS: We investigated the efficacy of antiplatelet drugs directly acting on three pathways: (1) cyclooxygenase (aspirin), (2) phosphodiesterase (dipyridamole, pentoxifylline, cilostazol), and (3) glycoprotein IIb-IIIa (eptifibatide)...
March 2018: Thrombosis Research
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