نتایج جستجو برای: antimonial resistance

تعداد نتایج: 375412  

Journal: :Antimicrobial agents and chemotherapy 2014
Kelly C Kato Eliane Morais-Teixeira Priscila G Reis Neila M Silva-Barcellos Pascal Salaün Paula P Campos José Dias Corrêa-Junior Ana Rabello Cynthia Demicheli Frédéric Frézard

Pentavalent antimonial drugs such as meglumine antimoniate (Glucantime [Glu; Sanofi-Aventis, São Paulo, Brazil]) produce severe side effects, including cardiotoxicity and hepatotoxicity, during the treatment of leishmaniasis. We evaluated the role of residual Sb(III) in the hepatotoxicity of meglumine antimoniate, as well as the protective effect of the antioxidant ascorbic acid (AA) during ant...

2012
Cristian Valencia Jorge Arévalo Jean Claude Dujardin Alejandro Llanos-Cuentas François Chappuis Mirko Zimic

BACKGROUND Increased rates for failure in leishmaniasis antimony treatment have been recently recognized worldwide. Although several risk factors have been identified there is no clinical score to predict antimony therapy failure of cutaneous leishmaniasis. METHODS A case control study was conducted in Peru from 2001 to 2004. 171 patients were treated with pentavalent antimony and followed up...

2013
Elham Kazemi-Rad Mehdi Mohebali Mohammad Bagher Khadem-Erfan Homa Hajjaran Ramtin Hadighi Ali Khamesipour Sassan Rezaie Mojtaba Saffari Reza Raoofian Mansour Heidari

The mainstay therapy against leishmaniasis is still pentavalent antimonial drugs; however, the rate of antimony resistance is increasing in endemic regions such as Iran. Understanding the molecular basis of resistance to antimonials could be helpful to improve treatment strategies. This study aimed to recognize genes involved in antimony resistance of Leishmania tropica field isolates. Sensitiv...

Journal: :Phytomedicine : international journal of phytotherapy and phytopharmacology 2011
Rupashree Sen Mitali Chatterjee

Diseases caused by insect borne trypanosomatid parasites are significant, yet remain a neglected public health problem. Leishmania, a unicellular protozoan parasite is the causative organism of Leishmaniasis and is transmitted by female phlebotamine sandflies affecting millions of people worldwide. In the wake of resistance to pentavalent antimonial drugs, new therapeutic alternatives are desir...

Journal: :Revista da Sociedade Brasileira de Medicina Tropical 2002
Rilza Beatriz G de Azeredo-Coutinho Sergio C F Mendonça

This study reviews a series of cutaneous leishmaniasis cases diagnosed and treated in outpatient units in the municipality of Rio de Janeiro, where the intermittent schedule of antimonial therapy was replaced by the continuous regimen. Both schedules were based on daily intramuscular injections of pentavalent antimonial. Forty-nine subjects received the intermittent regimen, consisting of three...

Journal: :Experimental parasitology 2013
Elham Kazemi-Rad Mehdi Mohebali Mohammad Bagher Khadem-Erfan Mojtaba Saffari Reza Raoofian Homa Hajjaran Ramtin Hadighi Ali Khamesipour Sassan Rezaie Hoda Abedkhojasteh Mansour Heidari

Pentavalent antimonial compounds have been the first line therapy for leishmaniasis; unfortunately the rate of treatment failure of anthroponotic cutaneous leishmaniasis (ACL) is increasing due to emerging of drug resistance. Elucidation of the molecular mechanisms operating in antimony resistance is critical for development of new strategies for treatment. Here, we used a cDNA-AFLP approach to...

2013
Francielle Pelegrin Garcia Danielle Lazarin-Bidóia Tânia Ueda-Nakamura Sueli de Oliveira Silva Celso Vataru Nakamura

Leishmania spp. are protozoa responsible for leishmaniasis, a neglected disease that kills up to 50,000 people every year. Current therapies mainly rely on antimonial drugs that are inadequate because of their poor efficacy and safety and increased drug resistance. An urgent need exists to find new and more affordable drugs. Our previous study demonstrated the antileishmanial activity of eupoma...

Journal: :eLife 2016
Hideo Imamura Tim Downing Frederik Van den Broeck Mandy J Sanders Suman Rijal Shyam Sundar An Mannaert Manu Vanaerschot Maya Berg Géraldine De Muylder Franck Dumetz Bart Cuypers Ilse Maes Malgorzata Domagalska Saskia Decuypere Keshav Rai Surendra Uranw Narayan Raj Bhattarai Basudha Khanal Vijay Kumar Prajapati Smriti Sharma Olivia Stark Gabriele Schönian Harry P De Koning Luca Settimo Benoit Vanhollebeke Syamal Roy Bart Ostyn Marleen Boelaert Louis Maes Matthew Berriman Jean-Claude Dujardin James A Cotton

Leishmania donovani causes visceral leishmaniasis (VL), the second most deadly vector-borne parasitic disease. A recent epidemic in the Indian subcontinent (ISC) caused up to 80% of global VL and over 30,000 deaths per year. Resistance against antimonial drugs has probably been a contributing factor in the persistence of this epidemic. Here we use whole genome sequences from 204 clinical isolat...

2015
David Rojo Gisele A. B. Canuto Emerson A. Castilho-Martins Marina F. M. Tavares Coral Barbas Ángeles López-Gonzálvez Luis Rivas Rodrigo Franco

There is a rising resistance against antimony drugs, the gold-standard for treatment until some years ago. That is a serious problem due to the paucity of drugs in current clinical use. In a research to reveal how these drugs affect the parasite during treatment and to unravel the underlying basis for their resistance, we have employed metabolomics to study treatment in Leishmania infantum prom...

Journal: :The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious Diseases 2001
R Badaro I Lobo M Nakatani A Muiños E M Netto R N Coler S G Reed

Immunotherapy has been proposed as a method to treat mucosal leishmaniasis for many years, but the approach has been hampered by poor definition and variability of antigens used, and results have been inconclusive. We report here a case of antimonial-refractory mucosal leishmaniasis in a 45 year old male who was treated with three single injections (one per month) with a cocktail of four Leishm...

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