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Genomes and GenesSpecies | Stephane PicotSummaryCountry: France Publications
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Publications
Fluorogenic detection of viable Toxoplasma gondiiE Borel
Laboratoire de Parasitologie Mycologie Médicale et Pathologie Exotique, Universite Claude Bernard Lyon I
Parasite 5:371-3. 1998..Moreover, detection in culture are sensitive, easier, and less time consuming than previous methods. So, they should to be useful in strains behaviour analysis...
A systematic review and meta-analysis of evidence for correlation between molecular markers of parasite resistance and treatment outcome in falciparum malariaStephane Picot
Malaria Research Unit, EA 4170, University Lyon 1, Faculty of Medicine, Lyon, France
Malar J 8:89. 2009..The purpose of this systematic review was to determine the risk of treatment failure associated with specific polymorphisms in the parasite genome or gene copy number...
[Is Plasmodium vivax still a paradigm for uncomplicated malaria?]S Picot
EA 37 32, virulence et résistance de plasmodium, Faculté de médecine de Lyon, Universite Claude Bernard, 69373 Lyon, France
Med Mal Infect 36:406-13. 2006....
Absence of nucleotide polymorphism in a Plasmodium vivax multidrug resistance gene after failure of mefloquine prophylaxis in French GuyanaS Picot
Laboratoire de Parasitologie, Mycologie Médicale et Maladies Tropicales, E A 3732, Universite Claude Bernard Lyon I, Lyon 69373, France
Trans R Soc Trop Med Hyg 99:234-7. 2005..vivax, when added to previously reported chloroquine and atovaquone-proguanil failure, strengthens the case for re-evaluating drug policies for vivax malaria and the need for continuous research on molecular markers of drug resistance...
Safety of epoietin beta-quinine drug combination in children with cerebral malaria in MaliStephane Picot
Malaria Research Unit, EA 4170, University Lyon 1, Faculty of Medicine, Lyon, France
Malar J 8:169. 2009..In this context, a new adjunctive strategy using a neuroprotective drug: erythropoietin (epoietin-beta, Epo) was proposed...
[Plasmodium vivax infection: not so benign]Stephane Picot
Malaria Research Unit, EA 4170, Faculte de Medecine, Universite Lyon 1, 8, avenue Rockefeller, 69373 Lyon Cedex 08, France
Med Sci (Paris) 25:622-6. 2009..The major issue addressed in that paper is to alert clinicians on the -potential severity of this "benign tertian fever"...
[Apoptosis and programmed cell death. Host parasite relationship new paradigm]S Picot
L EA 37 32, Praticien, Virulence et résistance des Plasmodium, Faculte de Medecine, Universite Claude Bernard, Lyon, France
Med Trop (Mars) 66:111-7. 2006....
Plasmodium vivax resistance to chloroquine in Madagascar: clinical efficacy and polymorphisms in pvmdr1 and pvcrt-o genesCéline Barnadas
EA4170, Parasitology and Tropical Medicine, 8 avenue Rockefeller, 69373 Lyon Cedex 08, France
Antimicrob Agents Chemother 52:4233-40. 2008..The 976Y pvmdr1 mutation was found not to be useful for monitoring CQ resistance. Further efforts are required to develop suitable tools for monitoring drug resistance in P. vivax malaria...
High prevalence and fixation of Plasmodium vivax dhfr/dhps mutations related to sulfadoxine/pyrimethamine resistance in French GuianaCéline Barnadas
University Lyon 1, Malaria Research Unit, Lyon, France
Am J Trop Med Hyg 81:19-22. 2009..3%). No significant differences were observed between the prevalence of haplotypes and the year of collection. Our results indicate that, in this area, the fixation of SP drug-resistant parasites in the P. vivax population is stable...
Plasmodium vivax dhfr and dhps mutations in isolates from Madagascar and therapeutic response to sulphadoxine-pyrimethamineCéline Barnadas
EA4170, Parasitology and Tropical Medicine, University Lyon 1, Lyon, France
Malar J 7:35. 2008..vivax infection and the polymorphisms in the pvdhfr and pvdhps genes were investigated. The correlation between these polymorphisms and clinical and parasitological responses was also investigated in P. vivax-infected patients...
Characterization of an excreted/secreted antigen form of 14-3-3 protein in Toxoplasma gondii tachyzoitesOlga Assossou
Laboratoire de Parasitologie, Mycologie Medicale et Pathologie Exotique, Equipe d accueil 3087 Faculté de Médecine, Universite Claude Bernard, 8 avenue Rockefeller, 69373 Lyon, France
FEMS Microbiol Lett 234:19-25. 2004..A positive immunoreactivity was observed with sera corresponding to acute toxoplasmosis and a possible involvement of 14-3-3 in host immunity is discussed...
Fitness of Toxoplasma gondii is not related to DHFR single-nucleotide polymorphism during congenital toxoplasmosisFrancois Peyron
E A 3732, Parasitology Unit, Faculty of Medicine, Claude Bernard University, Lyon, France
Int J Parasitol 34:1169-75. 2004..We concluded that the DHFR gene mutations we investigated do not regulate T. gondii fitness in humans...
Plasmodium falciparum metacaspase PfMCA-1 triggers a z-VAD-fmk inhibitable protease to promote cell deathBenoit Meslin
Malaria Research Unit, ICBMS UMR 5246 CNRS UCBL1 INSA, Lyon, France
PLoS ONE 6:e23867. 2011....
Simultaneous identification of the four human Plasmodium species and quantification of Plasmodium DNA load in human blood by real-time polymerase chain reactionFrederique de Monbrison
Parasitologie, Mycologie Médicale et Maladies Tropicales, Hospices Civils de Lyon, E A 3087, Universite Claude Bernard Lyon I, Lyon 69373, France
Trans R Soc Trop Med Hyg 97:387-90. 2003..Quantitative real-time PCR could also be used for the follow-up of patients during drug resistance studies managed by national malaria programmes, the testing of new drugs, and vaccine trials...
Features of apoptosis in Plasmodium falciparum erythrocytic stage through a putative role of PfMCA1 metacaspase-like proteinBenoit Meslin
University Claude Bernard Lyon 1, Equipe d Acceuil 41 70, Paristology and Tropical Medicine, Faculty of Medicine, Lyon, 69373, France
J Infect Dis 195:1852-9. 2007..This putative P. falciparum metacaspase protein has been designated PfMCA1. Our findings offer important insights into parasite survival strategies that could open new ways for therapeutic alternatives to drug resistance...
Serotyping of Toxoplasma gondii in chronically infected pregnant women: predominance of type II in Europe and types I and III in Colombia (South America)Francois Peyron
Laboratoire de Parasitologie, Mycologie Medicale et Pathologie Exotique, Equipe d Accueil E A 3732, Faculté de médecine de Lyon, 8 avenue Rockefeller, 69373 Lyon, France
Microbes Infect 8:2333-40. 2006..We demonstrated that, despite some limitation due to antigen and/or antibody specificity, serotyping is a promising assay to investigate the relationship between type of strain and severity of the disease...
Artesunate-erythropoietin combination for murine cerebral malaria treatmentAnne Lise Bienvenu
University Lyon 1, EA 4170, Parasitology and Tropical Medicine, Faculty of Medicine, 8 avenue Rockefeller, 69373 Lyon Cedex 08, France
Acta Trop 106:104-8. 2008....
Real-time PCR for chloroquine sensitivity assay and for pfmdr1-pfcrt single nucleotide polymorphisms in Plasmodium falciparumFrederique de Monbrison
Laboratoire de Parasitologie, Mycologie Med et Pathologie Exotique, Hospices Civils de Lyon, Faculte de Medecine, Universite Claude Bernard, E A 3087, Lyon, France
J Microbiol Methods 54:391-401. 2003....
Multicenter proficiency study for detection of Toxoplasma gondii in amniotic fluid by nucleic acid amplification methodsKarine Kaiser
Parasitology Laboratory, Hopital de la Croix Rousse, Lyon, France
Clin Chim Acta 375:99-103. 2007..A proficiency panel was designed to assess the performance of nucleic acid amplification technologies for the detection of Toxoplasma gondii in amniotic fluid...
Short report: prevalence and chloroquine sensitivity of Plasmodium malariae in MadagascarCéline Barnadas
Parasitology and Tropical Medicine, University Lyon 1, Lyon, France
Am J Trop Med Hyg 77:1039-42. 2007..malariae infection...
Are protozoan metacaspases potential parasite killers?Benoit Meslin
Malaria Research Unit, University Lyon 1, 8 avenue Rockefeller, 69373 Lyon Cedex 08, France
Parasit Vectors 4:26. 2011..The aim of this paper is to review current knowledge of protozoan parasite metacaspases within a drug targeting perspective...
Real-time PCR assay for the identification of cutaneous Leishmania parasite species in Constantine region of AlgeriaFrederique de Monbrison
Service de Parasitologie, Hopital E Herriot, Hospices Civils de Lyon, France
Acta Trop 102:79-83. 2007..2%) of the samples analyzed were positive. Sixty-one (5%) were related to L. major strain. These results indicate that PCR assay provides pleasant results with filter paper and represents a tool for the identification of old world CL...
Introducing antisense oligonucleotides into Pneumocystis cariniiFrederique de Monbrison
Laboratoire de Parasitologie, Mycologie Medicale et Pathologie Exotique, Hospices Civils de Lyon, E A 3087, Universite Claude Bernard Lyon I, 69373, Cedex 08, Lyons, France
J Microbiol Methods 50:211-3. 2002..Antisense oligonucleotides have been successfully introduced by electroporation or direct uptake in order to downregulate the prohibitin negative function on cell cycle...
Acquired itraconazole resistance in Aspergillus fumigatusE Dannaoui
Laboratoire de Parasitologie, Mycologie Medicale et Pathologie Exotique, Universite Claude Bernard Lyon I, 8 avenue Rockefeller, 69373 Lyon Cedex, France
J Antimicrob Chemother 47:333-40. 2001..RAPD patterns obtained with each of them were identical, suggesting that the same strain was recovered over time and had acquired resistance to itraconazole...
Disseminated cryptococcosis and histoplasmosis co-infection in a HIV-infected woman in FranceT Ferry
Service des Maladies Infectieuses et Tropicales, Hopital de la Croix Rousse, 103 Grande Rue de la Croix Rousse, 69317 Lyon Cedex 04, France
J Infect 51:e173-6. 2005..Histoplasma antigen detection is not yet available in France but it could have a key role in the early diagnosis of disseminated histoplasmosis co-existing with a cryptococcal infection, especially in HIV-infected African people...
Toxoplasma gondii regulates recruitment and migration of human dendritic cells via different soluble secreted factorsJ Diana
, Laboratoire E.A. 37-32, Clinique Dermatologique, , Lyon, France
Clin Exp Immunol 141:475-84. 2005..Taken together, these results suggest that T. gondii controls recruitment and migration of immature DC by different soluble factors and may induce a dysfunction in the host-specific immune response...
Sterol composition of itraconazole-resistant and itraconazole-susceptible isolates of Aspergillus fumigatusE Dannaoui
Laboratoire de Parasitologie, Mycologie Medicale et Pathologie Exotique, Universite Claude Bernard Lyon I, France
Can J Microbiol 47:706-10. 2001..These results suggest that itraconazole resistance is not related, for the strains studied, to alterations in the ergosterol synthesis pathway...
Use of spectrophotometric reading for in vitro antifungal susceptibility testing of Aspergillus sppE Dannaoui
Laboratoire de Parasitologie, Mycologie Medicale et Pathologie Exotique, Universite Claude Bernard Lyon I, France
Can J Microbiol 45:871-4. 1999..It is concluded that spectrophotometric MIC endpoint determination is a valuable alternative to the visual reference method for susceptibility testing of Aspergillus species...
Amphotericin B resistance of Aspergillus terreus in a murine model of disseminated aspergillosisE Dannaoui
Laboratoire de Parasitologie, Mycologie Medicale et Pathologie Exotique, Universite Claude Bernard Lyon I, France
J Med Microbiol 49:601-6. 2000..Analysis of sterol composition showed that the major sterol was ergosterol. This suggests that amphotericin B resistance was not related to a modified sterol profile...
Detection of Pneumocystis carinii DNA in blood specimens from human immunodeficiency virus-infected patients by nested PCRM Rabodonirina
Departement de Parasitologie et de Mycologie, Universite Claude Bernard, Lyon, France
J Clin Microbiol 37:127-31. 1999..In conclusion, P. carinii DNA may be detected in whole blood from HIV-infected patients, but the nature and the meaning of the circulating form of P. carinii remain to be established...
Real time quantitative PCR and RT--PCR for analysis of Pneumocystis carinii hominisK Kaiser
Laboratoire de Parasitologie, Mycologie Médicale et Maladies Tropicales Hospices Civils de Lyon EA 3087 Université C Bernard Lyon I 8, avenue Rockefeller 69373, Lyon Cedex 08, France
J Microbiol Methods 45:113-8. 2001..In this current study, we present a detailed description of these methods and their applications for analysis of P. carinii hominis...
In-vitro susceptibility of Aspergillus spp. isolates to amphotericin B and itraconazoleE Dannaoui
Laboratoire de Parasitologie, Mycologie Medicale et Pathologie Exotique, Universite Claude Bernard Lyon I, France
J Antimicrob Chemother 44:553-5. 1999..No isolate was detected with an MIC of amphotericin B >2 mg/L. Itraconazole MICs >16 mg/L were detected for four Aspergillus fumigatus and one Aspergillus nidulans isolates...
Toxoplasma gondii: comparison of human CD34+ and monocyte-derived dendritic cells after parasite infectionF Persat
Laboratoire de Parasitologie, Mycologie Medicale et Pathologie Exotique, Universite Claude Bernard, Lyon 1, EA 37 32, 8 avenue Rockefeller, 69373 Lyon Cedex 08, France
Exp Parasitol 115:103-6. 2007..Under similar conditions, no significant difference was noticed between mature or immature mo-DC. These data indicated that CD34-DC represent an alternative model that allows migration assay of infected DC by T. gondii...
Alveolar echinococcosis in a patient without hepatic disturbance and with unusual humoral immune responseF Persat
Laboratoire de Parasitologie, , , Hospices Civils de Lyon, 8 avenue Rockefeller, 69373, Lyon Cedex 08, France
Eur J Clin Microbiol Infect Dis 23:859-60. 2004
Use of ivermectin for the management of scabies in a nursing homeE Dannaoui
Laboratoire de Parasitologie, Mycologie Medicale et Pathologie Exotique, Universite Claude Bernard Lyon I, 8, avenue Rockefeller, 69373 Lyon Cedex, France
Eur J Dermatol 9:443-5. 1999..In only one case, was there a failure of the treatment. It is concluded that oral ivermectin is an effective and practical therapy for scabies in nursing homes...
Binding of live conidia of Aspergillus fumigatus activates in vitro-generated human Langerhans cells via a lectin of galactomannan specificityF Persat
EA 3087, Universite Claude Bernard, Lyon, France and Unité INSERM 346, Lyon, France
Clin Exp Immunol 133:370-7. 2003..Conidial binding was followed by activation and maturation of iLC, suggesting that LC present in the lung may play a role in cellular host defence against aspergilloses...
Risk factors for invasive aspergillosis in acute myeloid leukemia patients prophylactically treated with posaconazoleMauricette Michallet
Department of Hematology, Hopital Edouard Herriot, Hospices Civils de Lyon, Lyon, France
Med Mycol 49:681-7. 2011..Patient's age and response to induction treatment are two independent infection risk factors, and need more attention during future clinical trials linked to antifungal prophylaxis...
Contribution of the (1-->3)-beta-D-glucan assay for diagnosis of invasive fungal infectionsFlorence Persat
Service de Parasitologie, Mycologie Médicale et Maladies Tropicales, Hopital Edouard Herriot, Hospices Civils de Lyon, Domaine Rockefeller, 8 avenue Rockefeller, 69373 Lyon, Cedex 08, France
J Clin Microbiol 46:1009-13. 2008....
Subcellular localization of 14-3-3 proteins in Toxoplasma gondii tachyzoites and evidence for a lipid raft-associated formOlga Assossou
Laboratoire de Parasitologie, , , , 8 avenue Rockefeller, 69373, Lyon, Cedex 08, France
FEMS Microbiol Lett 224:161-8. 2003..Two 14-3-3 isoforms were detected. The major one was mainly cytoplasmic and to a lesser extent membrane-associated, whereas the minor isoform was associated with the detergent-resistant lipid rafts...
Apoptosis induced by parasitic diseasesAnne Lise Bienvenu
Malaria Research Unit, University Lyon 1, 8 avenue Rockefeller, 69373 Lyon Cedex 08, France
Parasit Vectors 3:106. 2010..An important issue will be to predict the beneficial or deleterious effects of controlling human cell death by apoptotic-like mechanisms during parasitic diseases...
Heterogeneity in cellular and humoral immune responses against Toxoplasma gondii antigen in humansA F Fatoohi
E.A. 3087 Parasitologie, , and Laboratoire d'Immunologie, , Lyon, France
Clin Exp Immunol 136:535-41. 2004..However, only two proteins in the 20-40 kD range induced a significant humoral response. Further studies are necessary to determine which proteins in the Fr 26-31.9 kD and 32-36.9 kD are superior immunogens for cellular responses...
Cellular immune responses to recombinant antigens in pregnant women chronically infected with Toxoplasma gondiiA F Fatoohi
E A 3087 Parasitologie, Faculté de Médecine Lyon Nord, Lyon, France
Clin Diagn Lab Immunol 9:704-7. 2002..Interleukin-4 was always absent from supernatants of cells stimulated with toxoplasma antigens. The heterogeneity of human responses to individual recombinant toxoplasma antigens should be considered in the design of potential vaccines...
Comparative diagnostic performance of two commercial rapid tests for malaria in a non-endemic areaF de Monbrison
, 8 avenue Rockefeller, 69373 Lyon Cedex 08, France
Eur J Clin Microbiol Infect Dis 23:784-6. 2004..falciparum infections, and it generated seven false-positive results. The results suggest that these rapid diagnostic tests for malaria may be useful, but they cannot replace microscopic examination of blood films...
Microbiologic identification of bleb-related delayed-onset endophthalmitis caused by moraxella speciesPierre Loic Cornut
Department of Ophthalmology, University Hospital, Claude Bernard University, Hopital Edouard Herriot, Lyon, France
J Glaucoma 17:541-5. 2008..To report the clinical presentation and outcome of delayed-onset endophthalmitis caused by Moraxella species and to evaluate the eubacterial polymerase chain reaction (PCR) in aqueous humor samples for the microbiologic diagnosis...
Evaluation of different commercial ELISA methods for the serodiagnosis of systemic candidosisF Persat
Service de Parasitologie, Mycologie Médicale et Maladies Tropicales, and Service d Hématologie, Hopital Edouard Herriot, Lyon, France
Mycoses 45:455-60. 2002..4% versus 59%, respectively) with a specificity of 52.6% (versus 55.2%). Interest in the use of commercial ELISAs, more particularly the Platelia tests, has to be confirmed in a prospective study with follow-up of the patients...
[Real-time PCR for detection of molecular markers of resistance in Plasmodium falciparum]F de Monbrison
Laboratoire de Parasitologie, Mycologie Medicale et Pathologie Exotique, E A 3087, Faculte de Medecine, Universite Claude Bernard, 8, avenue Rockefeller, 69373 Lyon cedex 03, France
Pathol Biol (Paris) 51:528-33. 2003..The aim of this study was not to provide definitive data concerning the rate of mutations in an endemic area, but to describe a powerful method allowing the detection of major pfmdr1 and pfcrt mutations...
Candida species distribution in bloodstream cultures in Lyon, France, 1998-2001D Martin
, , Hospices Civils de Lyon, 8 avenue Rockefeller, 69373 Lyon Cedex 08, France
Eur J Clin Microbiol Infect Dis 24:329-33. 2005..Since C. krusei has inherent resistance to the antifungal agent fluconazole, prophylactic use of fluconazole in these patients was investigated, but no relationship between these two parameters was found...
[New use of primaquine for malaria]M Oliver
Laboratoire de Biochimie, Hôpital d Instruction des Armées Laveran, Marseille, France
Med Mal Infect 38:169-79. 2008..vivax or P. ovale. In France, primaquine is not approved for prevention and treatment and its use requires a specific temporary authorization...
Black piedra: report of a French case associated with Trichosporon asahiiJ Kanitakis
Int J Dermatol 45:1258-60. 2006
Synergistic and antagonistic interactions between haemozoin and bacterial endotoxin on human and mouse macrophagesN Basilico
Istituto di Microbiologia, , Milan, Italy
Parassitologia 45:135-40. 2003..These data rise the question of whether and how in vivo concomitant gram(-) bacteremia may affect the pathogenesis and/or the immune response of malaria infections and vice versa...
Severe peritonitis due to Balantidium coli acquired in FranceT Ferry
Service de Medecine Interne et Maladies Infectieuses, Hôpital de Fleyriat, 01012 Bourg en Bresse, France
Eur J Clin Microbiol Infect Dis 23:393-5. 2004..Specific antibiotic treatment is efficacious, and it is important to consider the risk of this parasitic disease in susceptible patients presenting with bloody diarrhoea...
