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Digoxin toxicity

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https://www.readbyqxmd.com/read/29780940/colored-floaters-as-a-manifestation-of-digoxin-toxicity
#1
Lynn Shi, Linus D Sun, Jeffrey G Odel
Purpose: Since its report in one patient more than 70 years ago, digitalis-induced colored muscae volitantes have not surfaced again in the literature. We report here a case of digoxin induced colored floaters. Observations: An 89-year-old man on 0.25 mg digoxin daily developed visual hallucinations and colored floaters. He had floaters in the past but now they were in various colors including yellow, green, blue and red, though predominantly in yellow. These "weirdly" shaped little particles wiggled around as if in a viscous solution and casted shadows in his vision...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29778924/cerbera-odollam-toxicity-a-review
#2
REVIEW
Ritesh G Menezes, Muhammad Shariq Usman, Syed Ather Hussain, Mohammed Madadin, Tariq Jamal Siddiqi, Huda Fatima, Pradhum Ram, Syed Bilal Pasha, S Senthilkumaran, Tooba Qadir Fatima, Sushil Allen Luis
Cerbera odollam is a plant species of the Apocynaceae family. It is often dubbed the 'suicide tree' due to its strong cardiotoxic effects, which make it a suitable means to attempt suicide. The plant grows in wet areas in South India, Madagascar, and Southeast Asia; and its common names include Pong-Pong and Othalanga. The poison rich part of the plant is the kernel which is present at the core of its fruit. The bioactive toxin in the plant is cerberin, which is a cardiac glycoside of the cardenolide class...
May 9, 2018: Journal of Forensic and Legal Medicine
https://www.readbyqxmd.com/read/29618300/comparative-action-of-cardiotonic-steroids-on-intracellular-processes-in-rat-cortical-neurons
#3
A V Lopachev, O M Lopacheva, K A Nikiforova, I S Filimonov, T N Fedorova, E E Akkuratov
Binding to Na+,K+-ATPase, cardiotonic steroids (CTS) activate intracellular signaling cascades that affect gene expression and regulation of proliferation and apoptosis in cells. Ouabain is the main CTS used for studying these processes. The effects of other CTS on nervous tissue are practically uncharacterized. Previously, we have shown that ouabain affects the activation of mitogen-activated protein kinases (MAP kinases) ERK1/2, p38, and JNK. In this study, we compared the effects of digoxin and bufalin, which belong to different subclasses of CTS, on primary culture of rat cortical cells...
February 2018: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/29549524/evaluation-of-the-effectiveness-of-sugammadex-for-digoxin-intoxication-an-experimental-study
#4
Sule Ozbilgin, Derya Aslan Yurtlu, Beyza Küçükoztaş, Gonca Kamacı, Sezen Korkut, Bülent Serhan Yurtlu, M Ensari Güneli, Volkan Hancı, Ali Günerli
Previous studies have shown that cyclodextrin group medicines bind to various drugs. The hypothesis of our study is to determine whether sugammadex could bind to digoxin and delay the cardiovascular toxicity of that drug. Twenty-eight sedated Wistar rats were infused with digoxin at 3 mg/h (0.25 mg/ml). Five minutes after the start of infusion, animals were treated with a bolus of either 16 mg/kg (Sgdx16), 100 mg/kg (Sgdx100), or 1000 mg/kg (Sgdx1000) sugammadex. The control group infusion did not contain sugammadex...
March 16, 2018: Cardiovascular Toxicology
https://www.readbyqxmd.com/read/29529877/digoxin-use-in-systemic-light-chain-al-amyloidosis-contra-indicated-or-cautious-use
#5
Eli Muchtar, Morie A Gertz, Shaji K Kumar, Grace Lin, Barry Boilson, Alfredo Clavell, Martha Q Lacy, Francis K Buadi, Suzanne R Hayman, Prashant Kapoor, David Dingli, S Vincent Rajkumar, Angela Dispenzieri, Martha Grogan
AIM: Digoxin is considered contraindicated in light-chain (AL) amyloidosis, given reports of increased toxicity published 30-50 years ago. We sought to determine the frequency of digoxin toxicity in patients with AL. METHODS: We identified 107 patients with AL amyloidosis who received digoxin between 2000 and 2015. RESULTS: The median age was 65 and the median digoxin dose and estimated glomerular filtration rate were 0.125 mg/d and 55 ml/min/1...
March 12, 2018: Amyloid: the International Journal of Experimental and Clinical Investigation
https://www.readbyqxmd.com/read/29441934/implants-composed-of-digoxin-and-poly-%C3%AE%C2%B5-caprolactone-development-characterization-anti-proliferative-and-anti-angiogenic-activities
#6
F F Rodrigues, W R Braz, F B Perasoli, L G R Ferreira, L A de O Barbosa, G R Da Silva
Drug delivery systems could be applied to locally treat cervical cancer, thus preventing the drawbacks of conventional therapy. In this study, anti-proliferative and anti-angiogenic effects of digoxin incorporated into poly(ε-caprolactone) implants were evaluated, aiming at the local treatment of cervical cancer. Implants were characterized, and the in vitro release profile of digoxin was demonstrated. Anti-proliferative and anti-angiogenic activities of digoxin were investigated by using chorioallantoic membrane and human cervix carcinoma (HeLa) cells, respectively...
July 3, 2017: Die Pharmazie
https://www.readbyqxmd.com/read/29382214/successful-treatment-of-nerium-oleander-toxicity-with-titrated-digoxin-fab-antibody-dosing
#7
Anselm Wong, Shaun L Greene
No abstract text is available yet for this article.
January 30, 2018: Clinical Toxicology
https://www.readbyqxmd.com/read/29363354/a-review-of-the-clinical-toxicology-of-yew-poisoning
#8
Alexander W Labossiere, Dennis F Thompson
OBJECTIVES: Yew plant materials contain highly toxic taxine alkaloids. Serious ingestions can result in life-threatening toxicity. The purpose of this article is to summarize the literature on the treatment of acute yew poisoning. DATA SOURCES: PubMed (January 1946 to November 2017) was searched using the search terms "taxus/po". EMBASE (1980 to November 2017) was searched using the search terms "taxus/to" and "yew.mp." Web of Science (1945 to November 2017) was searched using the text words taxus, taxine, and yew...
January 1, 2018: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/29316267/elderly-patients-with-suspected-chronic-digoxin-toxicity-a-comparison-of-clinical-characteristics-of-patients-receiving-and-not-receiving-digoxin-fab
#9
Hooman Arbabian, Hwee Min Lee, Andis Graudins
OBJECTIVE: The aim of the present study was to compare clinical features of patients with elevated serum digoxin concentrations who were treated with digoxin-Fab with those where the immunotherapy was not given by a tertiary hospital toxicology service. METHODS: This was a retrospective series of patients with supratherapeutic serum digoxin concentrations referred to the toxicology service from August 2013 to October 2015. Data collected included demographics, presenting complaint, digoxin dose, other medications taken, serum digoxin, potassium and creatinine concentration on presentation and initial and post-digoxin-Fab heart rate...
April 2018: Emergency Medicine Australasia: EMA
https://www.readbyqxmd.com/read/29315692/comprehensive-review-of-cardiovascular-toxicity-of-drugs-and-related-agents
#10
REVIEW
Přemysl Mladěnka, Lenka Applová, Jiří Patočka, Vera Marisa Costa, Fernando Remiao, Jana Pourová, Aleš Mladěnka, Jana Karlíčková, Luděk Jahodář, Marie Vopršalová, Kurt J Varner, Martin Štěrba
Cardiovascular diseases are a leading cause of morbidity and mortality in most developed countries of the world. Pharmaceuticals, illicit drugs, and toxins can significantly contribute to the overall cardiovascular burden and thus deserve attention. The present article is a systematic overview of drugs that may induce distinct cardiovascular toxicity. The compounds are classified into agents that have significant effects on the heart, blood vessels, or both. The mechanism(s) of toxic action are discussed and treatment modalities are briefly mentioned in relevant cases...
January 5, 2018: Medicinal Research Reviews
https://www.readbyqxmd.com/read/29210311/the-role-of-gut-microbiota-in-the-modulation-of-drug-action-a-focus-on-some-clinically-significant-issues
#11
REVIEW
Diego Currò
A healthy gut microbiota is necessary for the normal operation of several body functions, including gastrointestinal sensitivity and motility, lipid and glucid metabolism, immune surveillance, and host behavior. In addition, intestinal bacteria contribute to determining the pharmacological properties of several drugs by producing different drug metabolizing enzymes. Areas covered: Four enzymatic processes are discussed: prodrug activation; drug inactivation; drug deconjugation; and hydrolysis of natural glycosides with further metabolism of released aglycones...
February 2018: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/29208503/maternal-complications-induced-by-digoxin-treatment-of-fetal-tachycardia-a-retrospective-series-of-18-cases
#12
S Moatassim, S Touleimat, T Hazelzet, M D Brasseur, A Diguet, I Durand, E Verspyck
OBJECTIVE: To evaluate maternal tolerance to digoxin, used alone or associated to other antiarrhythmic drugs in the management of fetal tachycardia. PATIENTS AND METHODS: This retrospective study was conducted at Rouen University Hospital between January 2009 and July 2016. All women who have received a treatment by either digoxin alone or associated with another antiarrhythmic drug for fetal tachycardia were included in the study. Maternal cardiac and extracardiac adverse effects were reported and comparisons between electrocardiograms before and during treatment with digoxin alone were performed...
February 2018: Journal of Gynecology Obstetrics and Human Reproduction
https://www.readbyqxmd.com/read/29174112/mechanism-of-rhinella-icterica-spix-1824-toad-poisoning-using-in-vitro-neurobiological-preparations
#13
Raquel Soares Oliveira, Allan Pinto Leal, Barbara Ogata, Carlos Gabriel Moreira de Almeida, Douglas Silva Dos Santos, Leandro Homrich Lorentz, Cleci Menezes Moreira, Karla de Castro Figueiredo Bordon, Eliane Candiani Arantes, Tiago Gomes Dos Santos, Cháriston André Dal Belo, Lúcia Vinadé
The biological activity of Rhinella icterica toxic secretion (RITS) was evaluated on chick neuromuscular junctions, rat heart́s tissue and mice hippocampal slices. At chick biventer cervicis preparation, RITS (5, 10 and 20μg/mL) produced a concentration-independent irreversible neuromuscular blockade, which was preceded by a transitory increase of muscle twitch tension with the lowest concentration, in 120min recordings. In this set of experiments, RITS incubation partially prevented the curare neuromuscular blockade...
March 2018: Neurotoxicology
https://www.readbyqxmd.com/read/29169235/hypermagnesuria-in-humans-following-acute-intravenous-administration-of-digoxin
#14
Nabil Abu-Amer, Eldar Priel, Steven J D Karlish, Zvi Farfel, Haim Mayan
BACKGROUND: Hypomagnesemia is a known predisposing condition for the appearance of digitalis toxicity. The detection of a genetic form of Mg urinary wasting with hypomagnesemia being caused by a mutation in the γ subunit (FXYD2) of the Na,K-ATPase, the pharmacological target of Digoxin, prompted us to investigate whether Digoxin administration increases urinary Mg excretion. METHODS: Two groups of subjects, with rapid atrial fibrillation, received intravenous Digoxin (n = 9) or verapamil (n = 8), for heart rate control...
2018: Nephron
https://www.readbyqxmd.com/read/29130514/involvement-of-src-signaling-in-the-synergistic-effect-between-cisplatin-and-digoxin-on-cancer-cell-viability
#15
Duane G Pereira, Mariana A R Salgado, Sayonarah C Rocha, Hérica L Santos, José A F P Villar, Rubén G Contreras, Carlos F L Fontes, Leandro A Barbosa, Vanessa F Cortes
Cisplatin and other platinum-containing drugs have played a crucial role in anticancer treatments for over 30 years. However, treatment with cisplatin may cause serious side effects, such as myelosuppression, nausea, ototoxicity, nephrotoxicity, and cell resistance processes. In addition, cardiotonic steroids, particularly digoxin, have recently been suggested to exert potent anticancer effects. Therefore, it is possible that the combined treatment of HeLa cells with cisplatin and digoxin can ameliorate the cytotoxic effects and decrease the side effects of cisplatin...
April 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28964110/a-model-of-cardiac-ryanodine-receptor-gating-predicts-experimental-ca-2-dynamics-and-ca-2-triggered-arrhythmia-in-the-long-qt-syndrome
#16
Dan Wilson, Bard Ermentrout, Jan Němec, Guy Salama
Abnormal Ca(2+) handling is well-established as the trigger of cardiac arrhythmia in catecholaminergic polymorphic ventricular tachycardia and digoxin toxicity, but its role remains controversial in Torsade de Pointes (TdP), the arrhythmia associated with the long QT syndrome (LQTS). Recent experimental results show that early afterdepolarizations (EADs) that initiate TdP are caused by spontaneous (non-voltage-triggered) Ca(2+) release from Ca(2+)-overloaded sarcoplasmic reticulum (SR) rather than the activation of the L-type Ca(2+)-channel window current...
September 2017: Chaos
https://www.readbyqxmd.com/read/28960089/efficacy-and-safety-of-dronedarone-in-the-treatment-of-patients-with-atrial-fibrillation
#17
REVIEW
Mohammed Hasan Khan, Yogita Rochlani, Wilbert S Aronow
Dronedarone, a derivative of amiodarone with structural modifications, was designed to have similar electrophysiological properties with a less toxic profile. Areas covered: Brief overview of the pharmacology of dronedarone followed by a summary of randomized clinical trials testing the efficacy of dronedarone in maintaining normal sinus rhythm and clinical outcomes associated with these trials. In depth discussion and commentary on trial findings which may seem contradictory at first approach and brief discussion of post-marketing surveillance studies...
December 2017: Expert Opinion on Drug Safety
https://www.readbyqxmd.com/read/28912988/accidental-intrathecal-administration-of-digoxin-in-an-elderly-male-with-end-stage-renal-disease
#18
Claudia Martin, Kitae Kevin Park, Antonio Liu
The systemic effects of digoxin toxicity have been well-known. However, there has been no case citing the effects of intrathecal digoxin in light of end-stage renal disease in the elderly. Here, we report on the case of the successful management of accidental intrathecal digoxin administration in an elderly male with end-stage renal disease.
2017: Case Reports in Neurological Medicine
https://www.readbyqxmd.com/read/28906558/effects-of-rolapitant-administered-intravenously-or-orally-on-the-pharmacokinetics-of-digoxin-p-glycoprotein-substrate-and-sulfasalazine-breast-cancer-resistance-protein-substrate-in-healthy-volunteers
#19
Xiaodong Wang, Zhi-Yi Zhang, Sujata Arora, Lorraine Hughes, Jing Wang, Daniel Powers, Jennifer Christensen, Sharon Lu, Vikram Kansra
Rolapitant is a selective and long-acting neurokinin-1 receptor antagonist approved in an oral formulation in combination with other antiemetic agents for the prevention of delayed chemotherapy-induced nausea and vomiting in adults. Four open-label phase 1 studies evaluated the safety and drug-drug interactions of a single dose of rolapitant given intravenously (166.5 mg) or orally (180 mg) with oral digoxin (0.5 mg) or sulfasalazine (500 mg), probe substrates for the P-glycoprotein (P-gp) and breast cancer resistance protein (BCRP), respectively...
February 2018: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28869702/the-prevalence-and-preventability-of-potentially-relevant-drug-drug-interactions-in-patients-admitted-for-cardiovascular-diseases-a-cross-sectional-study
#20
Milena Kovačević, Sandra Vezmar Kovačević, Branislava Miljković, Slavica Radovanović, Predrag Stevanović
AIM: The aim was to describe the type and prevalence of potentially relevant drug-drug interactions (pDDIs) in a population of patients admitted for cardiovascular diseases (CVD), and management strategies for reducing the occurrence of pDDIs. METHODS: A retrospective cross-sectional study was performed on Cardiology ward of University Clinical Hospital Center in Belgrade, Serbia. A total of 527 patients, with more than one prescription during hospital stay, were enrolled in this study...
October 2017: International Journal of Clinical Practice
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