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Omorou R, Delabie B, Lavoignat A, Chaker V, Bonnot G, Traore K, Bienvenu AL, Picot S. Nanoparticle tracking analysis of natural hemozoin from Plasmodium parasites. Acta Trop 2024; 250:107105. [PMID: 38135133 DOI: 10.1016/j.actatropica.2023.107105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 12/18/2023] [Accepted: 12/19/2023] [Indexed: 12/24/2023]
Abstract
BACKGROUND Hemozoin is a byproduct of hemoglobin digestion crucial for parasite survival. It forms crystals that can be of interest as drug targets or biomarkers of malaria infection. However, hemozoin has long been considered as an amorphous crystal of simple morphology. Studying the consequences of biomineralization of this crystal during the parasite growth may provide more comprehensive evidence of its role during malaria. OBJECTIVES This study aimed to investigate the interest of nanoparticles tracker analysis for measuring the concentration and size of hemozoin particles produced from different parasite sources and conditions. METHODS Hemozoin was extracted from several clones of Plasmodium falciparum both asexual and sexual parasites. Hemozoin was also extracted from blood samples of malaria patients and from saliva of asymptomatic malaria carriers. Nanoparticles tracking analysis (NTA) was performed to assess the size and concentration of hemozoin. RESULTS NTA data showed variation in hemozoin concentration, size, and crystal clusters between parasite clones, species, and stages. Among parasite clones, hemozoin concentration ranged from 131 to 2663 particles/infected red blood cell (iRBC) and size ranged from 149.6 ± 6.3 nm to 234.8 ± 40.1 nm. The mean size was lower for Plasmodium vivax (176 ± 79.2 nm) than for Plasmodium falciparum (254.8 ± 74.0 nm). Sexual NF54 parasites showed a 7.5-fold higher concentration of hemozoin particles (28.7 particles/iRBC) compared to asexual parasites (3.8 particles/iRBC). In addition, the mean hemozoin size also increased by approximately 60 % for sexual parasites. Compared to in vitro cultures of parasites, blood samples showed low hemozoin concentrations. CONCLUSIONS This study highlights the potential of NTA as a useful method for analyzing hemozoin, demonstrating its ability to provide detailed information on hemozoin characterization. However, further research is needed to adapt the NTA for hemozoin analysis.
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Affiliation(s)
- Roukayatou Omorou
- Malaria Research Unit, UMR 5246 CNRS-INSA-CPE, University Lyon1, University Lyon, Villeurbanne 69100, France.
| | - Blanche Delabie
- Malaria Research Unit, UMR 5246 CNRS-INSA-CPE, University Lyon1, University Lyon, Villeurbanne 69100, France
| | - Adeline Lavoignat
- Malaria Research Unit, UMR 5246 CNRS-INSA-CPE, University Lyon1, University Lyon, Villeurbanne 69100, France
| | - Victorien Chaker
- Malaria Research Unit, UMR 5246 CNRS-INSA-CPE, University Lyon1, University Lyon, Villeurbanne 69100, France
| | - Guillaume Bonnot
- Malaria Research Unit, UMR 5246 CNRS-INSA-CPE, University Lyon1, University Lyon, Villeurbanne 69100, France
| | - Karim Traore
- Malaria Research and Training Center, University of Sciences, Techniques and Technologies, Bamako, Mali
| | - Anne-Lise Bienvenu
- Malaria Research Unit, UMR 5246 CNRS-INSA-CPE, University Lyon1, University Lyon, Villeurbanne 69100, France; Service Pharmacie, Groupement Hospitalier Nord, Hospices Civils de Lyon, Lyon 69004, France
| | - Stephane Picot
- Malaria Research Unit, UMR 5246 CNRS-INSA-CPE, University Lyon1, University Lyon, Villeurbanne 69100, France; Institute of Parasitology and Medical Mycology, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon 69004, France
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2
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Bienvenu AL, Ballut L, Picot S. Specifically Targeting Metacaspases of Candida: A New Therapeutic Opportunity. J Fungi (Basel) 2024; 10:90. [PMID: 38392762 PMCID: PMC10889698 DOI: 10.3390/jof10020090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 01/19/2024] [Accepted: 01/19/2024] [Indexed: 02/24/2024] Open
Abstract
The World Health Organization (WHO) recently published a list of fungal priority pathogens, including Candida albicans and C. auris. The increased level of resistance of Candida is raising concern, considering the availability of only four classes of medicine. The WHO is seeking novel agent classes with different targets and mechanisms of action. Targeting Candida metacaspases to control intrinsic cell death could provide new therapeutic opportunities for invasive candidiasis. In this review, we provide the available evidence for Candida cell death, describe Candida metacaspases, and discuss the potential of Candida metacaspases to offer a new specific target. Targeting Candida cell death has good scientific rationale given that the fungicidal activity of many marketed antifungals is mediated, among others, by cell death triggering. But none of the available antifungals are specifically activating Candida metacaspases, making this target a new therapeutic opportunity for non-susceptible isolates. It is expected that antifungals based on the activation of fungi metacaspases will have a broad spectrum of action, as metacaspases have been described in many fungi, including filamentous fungi. Considering this original mechanism of action, it could be of great interest to combine these new antifungal candidates with existing antifungals. This approach would help to avoid the development of antifungal resistance, which is especially increasing in Candida.
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Affiliation(s)
- Anne-Lise Bienvenu
- Service Pharmacie, Groupement Hospitalier Nord, Hospices Civils de Lyon, 69004 Lyon, France
- Malaria Research Unit, University Lyon, UMR 5246 CNRS-INSA-CPE-University Lyon1, 69100 Villeurbanne, France
| | - Lionel Ballut
- Molecular Microbiology and Structural Biochemistry, UMR 5086, CNRS-Université de Lyon, 69367 Lyon, France
| | - Stephane Picot
- Malaria Research Unit, University Lyon, UMR 5246 CNRS-INSA-CPE-University Lyon1, 69100 Villeurbanne, France
- Institute of Parasitology and Medical Mycology, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, 69004 Lyon, France
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3
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Omorou R, Bin Sa'id I, Delves M, Severini C, Kouakou YI, Bienvenu AL, Picot S. Protocols for Plasmodium gametocyte production in vitro: an integrative review and analysis. Parasit Vectors 2022; 15:451. [PMID: 36471426 PMCID: PMC9720971 DOI: 10.1186/s13071-022-05566-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 11/02/2022] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND The production of Plasmodium gametocytes in vitro is a real challenge. Many protocols have been described, but few have resulted in the production of viable and infectious gametocytes in sufficient quantities to conduct research on-but not limited to-transmission-blocking drug and vaccine development. The aim of this review was to identify and discuss gametocyte production protocols that have been developed over the last two decades. METHODS We analyzed the original gametocyte production protocols published from 2000 onwards based on a literature search and a thorough review. A systematic review was performed of relevant articles identified in the PubMed, Web of Sciences and ScienceDirect databases. RESULTS A total 23 studies on the production of Plasmodium gametocytes were identified, 19 involving in vitro Plasmodium falciparum, one involving Plasmodium knowlesi and three involving ex vivo Plasmodium vivax. Of the in vitro studies, 90% used environmental stressors to trigger gametocytogenesis. Mature gametocytemia of up to 4% was reported. CONCLUSIONS Several biological parameters contribute to an optimal production in vitro of viable and infectious mature gametocytes. The knowledge gained from this systematic review on the molecular mechanisms involved in gametocytogenesis enables reproducible gametocyte protocols with transgenic parasite lines to be set up. This review highlights the need for additional gametocyte production protocols for Plasmodium species other than P. falciparum.
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Affiliation(s)
- Roukayatou Omorou
- Malaria Research Unit, UMR 5246 CNRS-INSA-CPE-University Lyon1, University of Lyon, 69100, Villeurbanne, France.
| | - Ibrahim Bin Sa'id
- Malaria Research Unit, UMR 5246 CNRS-INSA-CPE-University Lyon1, University of Lyon, 69100, Villeurbanne, France.,Institut Agama Islam Negeri (IAIN) Kediri, 64127, Kota Kediri, Jawa Timur, Indonesia
| | - Michael Delves
- Department of Infection Biology, Faculty of Infectious Tropical Diseases, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1A 7HT, UK
| | - Carlo Severini
- Dipartimento Di Malattie Infettive, Istituto Superiore Di Sanità, Rome, Italy
| | - Yobouet Ines Kouakou
- Malaria Research Unit, UMR 5246 CNRS-INSA-CPE-University Lyon1, University of Lyon, 69100, Villeurbanne, France
| | - Anne-Lise Bienvenu
- Malaria Research Unit, UMR 5246 CNRS-INSA-CPE-University Lyon1, University of Lyon, 69100, Villeurbanne, France.,Service Pharmacie, Groupement Hospitalier Nord, Hospices Civils de Lyon, Lyon, France
| | - Stephane Picot
- Malaria Research Unit, UMR 5246 CNRS-INSA-CPE-University Lyon1, University of Lyon, 69100, Villeurbanne, France.,Institut de Parasitologie Et Mycologie Médicale, Groupement Hospitalier Nord, Hospices Civils de Lyon, Lyon, France
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Subudhi AK, Bienvenu AL, Bonnot G, Abu-Shamma R, Khamis F, Lawati HAAA, Picot S, Petersen E, Pain A. The first case of artemisinin treatment failure of plasmodium falciparum imported to Oman from Tanzania. J Travel Med 2022; 30:6663935. [PMID: 35960997 DOI: 10.1093/jtm/taac092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/21/2022] [Accepted: 07/22/2022] [Indexed: 11/14/2022]
Abstract
We present the clinical and genomic epidemiological perspective of the first case of Artesunate treatment failure in an Omani citizen admitted to a hospital in Muscat who originally contracted P. falciparum malaria during travel to Dar Es Salaam, Tanzania.
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Affiliation(s)
- Amit Kumar Subudhi
- Pathogen Genomics Group, Bioscience Program, BESE Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Anne-Lise Bienvenu
- Univ Lyon, Malaria Research Unit, UMR 5246 CNRS-INSA-CPE-University Lyon1, 69100 Villeurbanne, France.,Service Pharmacie, Groupement hospitalier Nord, Hospices Civils de Lyon, 69004 Lyon, France
| | - Guillaume Bonnot
- Univ Lyon, Malaria Research Unit, UMR 5246 CNRS-INSA-CPE-University Lyon1, 69100 Villeurbanne, France
| | - Reem Abu-Shamma
- Pathogen Genomics Group, Bioscience Program, BESE Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Faryal Khamis
- Department of Infectious Diseases, The Royal Hospital, Muscat, Oman
| | | | - Stephane Picot
- Univ Lyon, Malaria Research Unit, UMR 5246 CNRS-INSA-CPE-University Lyon1, 69100 Villeurbanne, France.,Institute of Parasitology and Medical Mycology, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, 69004 Lyon, France
| | - Eskild Petersen
- Department of Infectious Diseases, The Royal Hospital, Muscat, Oman.,Institute for Clinical Medicine, University of Aarhus, Aarhus, Denmark.,Emerging Infections Task Force, European Society for Clinical Microbiology and Infectious Diseases (ESCMID), Basel, Switzerland
| | - Arnab Pain
- Pathogen Genomics Group, Bioscience Program, BESE Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia.,International Institure for Zoonosis Control, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo 001-0020, Japan
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5
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Bin Said I, Kouakou YI, Omorou R, Bienvenu AL, Ahmed K, Culleton R, Picot S. Systematic review of Plasmodium knowlesi in Indonesia: a risk of emergence in the context of capital relocation to Borneo? Parasit Vectors 2022; 15:258. [PMID: 35850777 PMCID: PMC9290274 DOI: 10.1186/s13071-022-05375-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 06/23/2022] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND The Indonesian Republic plans to relocate its capital from Jakarta to East Kalimantan, Borneo Island, in the next few years. This relocation may be associated with deforestation, decreased biodiversity, and an increased risk of emerging zoonotic infections, including Plasmodium knowlesi malaria. The Malaysian part of Borneo Island is one of the main hotspots of P. knowlesi malaria. METHODS Considering this risk, we evaluated the transmission dynamics of P. knowlesi in the Indonesian Archipelago based on a literature search and extensive review of data from the Indonesian Ministry of Health. RESULTS We report that 545 P. knowlesi cases were documented in Indonesia, mainly in the Aceh and North Sumatra provinces, with 95% of these occurring in the last 4 years. CONCLUSIONS The main P. knowlesi vectors are present in the area of the future capital, requiring strengthened surveillance to reduce the risk of emerging cases in a rapidly growing population.
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Affiliation(s)
- Ibrahim Bin Said
- Malaria Research Unit, UMR 5246 CNRS-INSA-CPE-University Lyon1, University Lyon, 69100 Villeurbanne, France
- Institut Agama Islam Negeri (IAIN) Kediri, Jawa Timur, 64127 Kota Kediri, Indonesia
| | - Yobouet Ines Kouakou
- Malaria Research Unit, UMR 5246 CNRS-INSA-CPE-University Lyon1, University Lyon, 69100 Villeurbanne, France
| | - Roukayatou Omorou
- Malaria Research Unit, UMR 5246 CNRS-INSA-CPE-University Lyon1, University Lyon, 69100 Villeurbanne, France
| | - Anne-Lise Bienvenu
- Malaria Research Unit, UMR 5246 CNRS-INSA-CPE-University Lyon1, University Lyon, 69100 Villeurbanne, France
- Service Pharmacie, Groupement Hospitalier Nord, Hospices Civils de Lyon, 69004 Lyon, France
| | - Kamruddin Ahmed
- Faculty of Medicine and Health Sciences, Borneo Medical and Health Research Centre, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Sabah Malaysia
- Department of Pathology and Microbiology, Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Sabah, Sabah Malaysia
| | - Richard Culleton
- Division of Molecular Parasitology, Proteo-Science Center, Ehime University, Matsuyama, Japan
| | - Stephane Picot
- Malaria Research Unit, UMR 5246 CNRS-INSA-CPE-University Lyon1, University Lyon, 69100 Villeurbanne, France
- Institute of Parasitology and Medical Mycology, Hôpital de La Croix-Rousse, Hospices Civils de Lyon, 69004 Lyon, France
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6
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Duguet N, De Dios Miguel T, Louvel D, Onida K, Lavoignat A, Picot S. Synthesis of Fatty 1,2,4-Trioxanes by Peracetalization of β-Hydroxy Hydroperoxides. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1643-3057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractThe peracetalization of a β-hydroxy hydroperoxide derived from methyl oleate was studied using benzaldehyde as a model substrate to give the corresponding fatty 1,2,4-trioxane. The desired product was obtained as a mixture of regioisomers but only one diastereoisomer of each was formed. The nature of the acid catalyst was studied and both p-toluene sulfonic acid (PTSA) and Amberlyst A35 (A35) were found to be efficient homogeneous and heterogeneous catalysts, respectively. The nature of the solvent was also investigated and ethereal solvents such as 2-methyltetrahydrofuran (2-MeTHF), methyl tert-butyl ether (MTBE) and cyclopentyl methyl ether (CPME) gave the best NMR yield (85%) for the preparation of the fatty trioxane. The optimized conditions were applied to a range of aromatic and aliphatic aldehydes, and the corresponding 1,2,4-trioxanes were isolated with 30–91% yields (21 examples). The antimalarial activity of three trioxanes was studied against Plasmodium falciparum, however, no significant activity was detected (IC50 >1600 nM).
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Affiliation(s)
- Nicolas Duguet
- Univ Lyon, Université Claude Bernard Lyon1, CNRS, INSA, CPE-Lyon, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, ICBMS, UMR 5246, Equipe CAtalyse, SYnthèse et ENvironnement (CASYEN)
| | - Thomas De Dios Miguel
- Univ Lyon, Université Claude Bernard Lyon1, CNRS, INSA, CPE-Lyon, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, ICBMS, UMR 5246, Equipe CAtalyse, SYnthèse et ENvironnement (CASYEN)
| | - Dan Louvel
- Univ Lyon, Université Claude Bernard Lyon1, CNRS, INSA, CPE-Lyon, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, ICBMS, UMR 5246, Equipe CAtalyse, SYnthèse et ENvironnement (CASYEN)
| | - Killian Onida
- Univ Lyon, Université Claude Bernard Lyon1, CNRS, INSA, CPE-Lyon, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, ICBMS, UMR 5246, Equipe CAtalyse, SYnthèse et ENvironnement (CASYEN)
| | - Adeline Lavoignat
- Univ Lyon, Université Claude Bernard Lyon1, CNRS, INSA, CPE-Lyon, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, ICBMS, UMR 5246, Equipe Synthèse de Molécules d’Intérêt Thérapeutique (SMITH)
| | - Stephane Picot
- Univ Lyon, Université Claude Bernard Lyon1, CNRS, INSA, CPE-Lyon, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, ICBMS, UMR 5246, Equipe Synthèse de Molécules d’Intérêt Thérapeutique (SMITH)
- Parasitology and Mycology Department, Institute of Infectious Agents
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Picot S, Beugnet F, Leboucher G, Bienvenu AL. Drug resistant parasites and fungi from a one-health perspective: A global concern that needs transdisciplinary stewardship programs. One Health 2021; 14:100368. [PMID: 34957316 PMCID: PMC8692089 DOI: 10.1016/j.onehlt.2021.100368] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 12/16/2021] [Accepted: 12/20/2021] [Indexed: 12/12/2022] Open
Abstract
Antimicrobials including antibiotics, antiparasitic, and antifungals, are subjected to resistance. In this context, Public Health Organizations called for a One Health approach because antimicrobials used to treat different infectious diseases in animals and plants may be the same than those used in humans. Whereas mechanisms of resistance transmission from animals or environment to humans should be considered differently if related to prokaryotic or eukaryotic pathogens, their impact can be considered as a whole. In that respect, we discussed the use of anti-parasitic in animals including anticoccidials, anthelmintics, and insecticides-acaricides, and the use of azoles in the environment that may both favor the development of drug resistance in humans. In light of the current situation, there is an urgent need for a transdisciplinary approach through anti-parasitic and antifungal stewardship programs in humans, animals, and environment, especially in the era of COVID-19 pandemic that will probably aggravate antimicrobial resistance.
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Affiliation(s)
- Stephane Picot
- Univ Lyon, Malaria Research Unit, SMITh, ICBMS UMR 5246, Lyon, France.,Institut de Parasitologie et Mycologie Medicale, Hospices Civils de Lyon, Lyon, France
| | | | - Gilles Leboucher
- Service Pharmacie, Groupement Hospitalier Nord, Hospices Civils de Lyon, Lyon, France
| | - Anne-Lise Bienvenu
- Univ Lyon, Malaria Research Unit, SMITh, ICBMS UMR 5246, Lyon, France.,Service Pharmacie, Groupement Hospitalier Nord, Hospices Civils de Lyon, Lyon, France
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8
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Petersen E, Picot S. The End of the Artemisinin Era-We Should Aim at Malaria Eradication in Asia Using Free, Effective Treatment. Clin Infect Dis 2021; 73:414-415. [PMID: 32459304 DOI: 10.1093/cid/ciaa625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 05/25/2020] [Indexed: 11/14/2022] Open
Affiliation(s)
- Eskild Petersen
- Institute for Clinical Medicine, University of Aarhus, Aarhus, Denmark.,Department of Molecular Medicine, University of Pavia, Pavia, Italy
| | - Stephane Picot
- University of Lyon, Malaria Research Unit, Institute for Molecular and Supramolecular Chemistry and Biochemistry, Lyon, France.,Institute of Parasitology and Medical Mycology, Croix-Rousse Hospital, Hospices Civils de Lyon, Lyon, France
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9
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Landre S, Bienvenu AL, Miailhes P, Abraham P, Simon M, Becker A, Conrad A, Bonnot G, Kouakou YI, Chidiac C, Leboucher G, Rimmelé T, Argaud L, Picot S. Recrudescence of a high parasitaemia, severe Plasmodium falciparum malaria episode, treated by artesunate monotherapy. Int J Infect Dis 2021; 105:345-348. [PMID: 33636354 DOI: 10.1016/j.ijid.2021.02.080] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 02/18/2021] [Accepted: 02/19/2021] [Indexed: 11/28/2022] Open
Abstract
A patient presenting with severe malaria, with hyperparasitaemia, received 7-day artesunate monotherapy. A severe recrudescence was detected and attributed to hyperparasitaemia, monotherapy and a polyclonal infection without Kelch 13 gene mutation. A second treatment with artesunate, then quinine, followed by artemether-lumefantrine, was successful.
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Affiliation(s)
- Sophie Landre
- Service des Maladies Infectieuses et Tropicales, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, 69004 Lyon, France
| | - Anne-Lise Bienvenu
- Service Pharmacie, Groupement Hospitalier Nord, Hospices Civils de Lyon, 69004 Lyon, France
| | - Patrick Miailhes
- Service des Maladies Infectieuses et Tropicales, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, 69004 Lyon, France
| | - Paul Abraham
- Anesthesiology and Critical Care Medicine, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France
| | - Marie Simon
- Service de Médecine Intensive-Réanimation, Hôpital Edouard Herriot, Hospices Civils de Lyon, 69437 Lyon Cedex 03, France
| | - Agathe Becker
- Service des Maladies Infectieuses et Tropicales, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, 69004 Lyon, France
| | - Anne Conrad
- Service des Maladies Infectieuses et Tropicales, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, 69004 Lyon, France
| | - Guillaume Bonnot
- Univ Lyon, Malaria Research Unit, UMR 5246 CNRS-INSA-CPE-University Lyon1, 69100 Villeurbanne, France
| | - Yobouet Ines Kouakou
- Univ Lyon, Malaria Research Unit, UMR 5246 CNRS-INSA-CPE-University Lyon1, 69100 Villeurbanne, France; Institute of Parasitology and Medical Mycology, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, 69004 Lyon, France
| | - Christian Chidiac
- Service des Maladies Infectieuses et Tropicales, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, 69004 Lyon, France
| | - Gilles Leboucher
- Service Pharmacie, Groupement Hospitalier Nord, Hospices Civils de Lyon, 69004 Lyon, France
| | - Thomas Rimmelé
- Anesthesiology and Critical Care Medicine, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France
| | - Laurent Argaud
- Service de Médecine Intensive-Réanimation, Hôpital Edouard Herriot, Hospices Civils de Lyon, 69437 Lyon Cedex 03, France
| | - Stephane Picot
- Univ Lyon, Malaria Research Unit, UMR 5246 CNRS-INSA-CPE-University Lyon1, 69100 Villeurbanne, France; Institute of Parasitology and Medical Mycology, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, 69004 Lyon, France.
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10
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Picot S, Cucherat M, Bienvenu AL. Systematic review and meta-analysis of diagnostic accuracy of loop-mediated isothermal amplification (LAMP) methods compared with microscopy, polymerase chain reaction and rapid diagnostic tests for malaria diagnosis. Int J Infect Dis 2020; 98:408-419. [PMID: 32659450 DOI: 10.1016/j.ijid.2020.07.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 07/01/2020] [Accepted: 07/05/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Diagnosis is a challenging issue for eliminating malaria. Loop-mediated isothermal amplification (LAMP) could be an alternative to conventional methods. This study aimed to evaluate the diagnostic accuracy of LAMP for malaria compared with microscopy, polymerase chain reaction (PCR) and rapid diagnostic tests (RDTs). METHODS AND DESIGN MEDLINE, Web of Science and Scopus were searched from inception to 1 July 2019. Prospective and retrospective, randomised and non-randomised, mono-center and multi-center studies, including symptomatic or asymptomatic patients, that reported one LAMP method and one comparator (microscopy, RDT or PCR) were included. PROSPERO registration number: CRD42017075186. RESULTS Sixty-six studies published between 2006 and 2019 were included, leading to the analysis of 30,641 LAMP tests. The pooled sensitivity of LAMP remained between 96% and 98%, whichever the comparator. The pooled specificity of LAMP was around 95%, but was a little higher if the best PCR studies were considered. The AUC was found to be >0.98, whichever the subgroup of studies was considered. Diagnostic odds ratio (DOR) was found to be around 1000 for all subgroups, except for Plasmodium vivax. CONCLUSION This meta-analysis confirmed that the LAMP method is robust for diagnosing malaria, both in symptomatic and asymptomatic people. Thus, the impact of LAMP for controlling malaria is expected to be important.
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Affiliation(s)
- Stephane Picot
- Malaria Research Unit, SMITh, ICBMS UMR 5246 CNRS-INSA-CPE-Université de Lyon, Campus Lyon-Tech La Doua, 69622 Villeurbanne Cedex, France; Institut de Parasitologie et Mycologie Médicale, Hôpital de La Croix-Rousse, Hospices Civils de Lyon, Lyon, France
| | - Michel Cucherat
- Service de Pharmacotoxicologie, Hospices Civils de Lyon, Laboratoire de Biométrie et Biologie Évolutive, CNRS, UMR5558, Université Lyon 1, Lyon, France
| | - Anne-Lise Bienvenu
- Malaria Research Unit, SMITh, ICBMS UMR 5246 CNRS-INSA-CPE-Université de Lyon, Campus Lyon-Tech La Doua, 69622 Villeurbanne Cedex, France; Service Pharmacie, Groupement Hospitalier Nord, Hospices Civils de Lyon, France; Service d'Hématologie, Groupement Hospitalier Nord, Hospices Civils de Lyon, France.
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11
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Bienvenu AL, Picot S. Mycetoma and Chromoblastomycosis: Perspective for Diagnosis Improvement Using Biomarkers. Molecules 2020; 25:molecules25112594. [PMID: 32498471 PMCID: PMC7321093 DOI: 10.3390/molecules25112594] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 05/28/2020] [Accepted: 05/29/2020] [Indexed: 11/28/2022] Open
Abstract
Background: Mycetoma and chromoblastomycosis are both chronic subcutaneous infectious diseases that pose an obstacle to socioeconomic development. Besides the therapeutic issue, the diagnosis of most neglected tropical diseases (NTD) is challenging. Confirmation using direct microscopy and culture, recognized as WHO essential diagnostic tests, are limited to specialized facilities. In this context, there is a need for simple user-friendly diagnostic tests to be used in endemic villages. Methods: This review discuss the available biomarkers that could help to improve the diagnostic capacity for mycetoma and chromoblastomycosis in a theoretical and practical perspective. Results: A lack of research in this area has to be deplored, mainly for mycetoma. Biomarkers based on the immune response (pattern of leucocytes, antibody detection), the dermal involvement (extracellular matrix monitoring, protein expression), and the presence of the infectious agent (protein detection) are potential candidates for the detection or follow-up of infection. Conclusion: Confirmatory diagnosis based on specific diagnostic biomarkers will be the basis for the optimal treatment of mycetoma and chromoblastomycosis. It will be part of the global management of NTDs under the umbrella of stewardship activities.
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Affiliation(s)
- Anne-Lise Bienvenu
- Service Pharmacie, Groupement Hospitalier Nord, Hospices Civils de Lyon, 69004 Lyon, France
- Service d’Hématologie, Groupement Hospitalier Nord, Hospices Civils de Lyon, 69004 Lyon, France
- Malaria Research Unit, University Lyon, ICBMS, UMR 5246 CNRS INSA CPE, Campus Lyon-Tech La Doua, F-69100 Lyon, France;
- Correspondence:
| | - Stephane Picot
- Malaria Research Unit, University Lyon, ICBMS, UMR 5246 CNRS INSA CPE, Campus Lyon-Tech La Doua, F-69100 Lyon, France;
- Groupement Hospitalier Nord, Institut de Parasitologie et Mycologie Médicale, Hospices Civils de Lyon, 69004 Lyon, France
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12
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Bienvenu AL, Marty AM, Jones MK, Picot S. Systematic review of registered trials of Hydroxychloroquine prophylaxis for COVID-19 health-care workers at the first third of 2020. One Health 2020; 10:100141. [PMID: 32562480 PMCID: PMC7235596 DOI: 10.1016/j.onehlt.2020.100141] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/29/2022] Open
Abstract
In the absence of a vaccine the medical and scientific community is looking intensely at utilizing a pre or post exposure drug that could decrease viremia. The search for a medication that could reduce risk of serious disease, and ideally of any manifestation of disease from SARS-CoV2, and of asymptomatic shedding of SARS-CoV2 is of urgent interest. Repurposing existing pharmaceuticals is among the approaches to achieve these ends. We performed a systematic review of all interventional studies registered in ClinicalTrials.gov with a focus on one repurposed drug, Hydroxychloroquine (HCQ). The detailed analysis of these studies, some of them already recruiting, provide an overall picture of HCQ use as a COVID-19 prophylaxis around the world. Among the included studies, all but three were randomized and parallel and most of them (74%, 23/31) were double-blinded to quadruple-blinded studies. We found a great diversity in dosing and nearly all the possible scientifically reasonable regimens are under evaluation. This diversity offers benefits as well as challenges. Importantly, the final analysis of these trials should be done through an extensive reading of the results in regard to the clinical design, it will be crucial to carefully read and evaluate the results of each study in regards to the clinical design rather than quickly glancing a 140 characters-based social media message announcing the failure or success of a drug against a disease.
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Affiliation(s)
- Anne-Lise Bienvenu
- Groupement Hospitalier Nord, Service Pharmacie, Hospices Civils de Lyon, Lyon, France.,Univ Lyon, Malaria Research Unit, ICBMS, UMR 5246 CNRS INSA CPE, F-69100, Lyon, France
| | - Aileen M Marty
- Translational Medicine; HWCOM, FIU Health Travel Medicine Program and Vaccine Clinic Commander, Emergency Response Team Development, Miami, Florida
| | - Malcolm K Jones
- School of Veterinary Science, The University of Queensland, Brisbane, Qld, Australia
| | - Stephane Picot
- Univ Lyon, Malaria Research Unit, ICBMS, UMR 5246 CNRS INSA CPE, F-69100, Lyon, France.,Institute of Parasitology and Medical Mycology, Croix-Rousse Hospital, Hospices Civils de Lyon, 69004 Lyon, France
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13
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Ahmadpour E, Safarpour H, Xiao L, Zarean M, Hatam-Nahavandi K, Barac A, Picot S, Rahimi MT, Rubino S, Mahami-Oskouei M, Spotin A, Nami S, Baghi HB. Cryptosporidiosis in HIV-positive patients and related risk factors: A systematic review and meta-analysis. ACTA ACUST UNITED AC 2020; 27:27. [PMID: 32351207 PMCID: PMC7191976 DOI: 10.1051/parasite/2020025] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 04/09/2020] [Indexed: 11/28/2022]
Abstract
Cryptosporidium is one of the major causes of diarrhea in HIV-positive patients. The aim of this study is to systematically review and meta-analyze the prevalence of Cryptosporidium in these patients. PubMed, Science Direct, Google Scholar, Web of Science, Cochrane and Ovid databases were searched for relevant studies dating from the period of 1 January 2000 to 31 December 2017. Data extraction for the included studies was performed independently by two authors. The overall pooled prevalence was calculated and subgroup analysis was performed on diagnostic methods, geographical distribution and study population. Meta-regression was performed on the year of publication, proportion of patients with diarrhea, and proportion of patients with CD4 < 200 cells/mL. One hundred and sixty-one studies and 51,123 HIV-positive participants were included. The overall pooled prevalence of Cryptosporidium infection in HIV-positive patients was 11.2% (CI95%: 9.4%–13.0%). The pooled prevalence was estimated to be 10.0% (CI95%: 8.4%–11.8%) using staining methods, 13.5% (CI95%: 8.9%–19.8%) using molecular methods, and 26.3% (CI95%: 15.0%–42.0%) using antigen detection methods. The prevalence of Cryptosporidium in HIV patients was significantly associated with the country of study. Also, there were statistical differences between the diarrhea, CD4 < 200 cells/mL, and antiretroviral therapy risk factors with Cryptosporidiosis. Thus, Cryptosporidium is a common infection in HIV-positive patients, and safe water and hand-hygiene should be implemented to prevent cryptosporidiosis occurrence in these patients.
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Affiliation(s)
- Ehsan Ahmadpour
- Research Center for Evidence Based Medicine (RCEBM), Tabriz University of Medical Sciences, 5166-15731 Tabriz, Iran - Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, 5166-15731 Tabriz, Iran
| | - Hanie Safarpour
- Student Research Committee, Tabriz University of Medical Sciences, 5166-15731 Tabriz, Iran
| | - Lihua Xiao
- College of Veterinary Medicine, South China Agricultural University, 510642 Guangzhou, China
| | - Mehdi Zarean
- Department of Parasitology and Mycology, Faculty of Medicine, Mashhad University of Medical Sciences, 91779-48964 Mashhad, Iran
| | | | - Aleksandra Barac
- Clinic for Infectious and Tropical Diseases, Clinical Centre of Serbia, 11000 Belgrade, Serbia
| | - Stephane Picot
- University Lyon, ICBMS UMR 5246 CNRS-INSA-CPE & Institute of Parasitology and Medical Mycology, Croix-Rousse Hospital, Hospices Civils de Lyon, 69004 Lyon, France
| | - Mohammad Taghi Rahimi
- Center for Health Related Social and Behavioral Sciences Research, Shahroud University of Medical Sciences, 36147-73947 Shahroud, Iran
| | - Salvatore Rubino
- Department of Biomedical Sciences, University of Sassari, 07100 Sardinia, Italy
| | - Mahmoud Mahami-Oskouei
- Department of Parasitology and Mycology, Faculty of Medicine, Tabriz University of Medical Sciences, 5166-15731 Tabriz, Iran
| | - Adel Spotin
- Immunology Research Center, Tabriz University of Medical Sciences, 5166-15731 Tabriz, Iran
| | - Sanam Nami
- Drug Applied Research Center, Tabriz University of Medical Sciences, 5166-15731 Tabriz, Iran
| | - Hossein Bannazadeh Baghi
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, 5166-15731 Tabriz, Iran
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14
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Amirouche A, Esteves J, Lavoignat A, Picot S, Ferrigno R, Faivre M. Dual shape recovery of red blood cells flowing out of a microfluidic constriction. Biomicrofluidics 2020; 14:024116. [PMID: 32549922 PMCID: PMC7190370 DOI: 10.1063/5.0005198] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 04/01/2020] [Indexed: 05/28/2023]
Abstract
Micropipette aspiration, optical tweezers, rheometry, or ecktacytometry have been used to study the shape recovery of healthy human Red Blood Cells (RBCs) and measure associated relaxation times of the order of 100-300 ms. These measurements are in good agreement with the Kelvin-Voigt model, which describes the cell as a visco-elastic material, predicting that its relaxation time only depends on cell intrinsic properties. However, such mechanical solicitation techniques are far from being relevant regarding RBC solicitation in vivo. In this paper, we report for the first time the existence of two different behaviors of the RBC shape recovery while flowing out of a microfluidic constricted channel. The calculation of the viscous stress corresponding to the frontier between the two recovery modes confirms that the RBC resistance to shear μ is the elastic property dominating the transition between the two recovery behaviors. We also quantified associated recovery times τ r and report values as low as 4 ms-which is almost two decades smaller than the typical RBC relaxation time-at high viscosity and flow velocity of the carrier fluid. Although we cannot talk about relaxation time because the cell is never at rest, we believe that the measured shape recovery time arises from the coupling of the cell intrinsic deformability and the hydrodynamic stress. Depending on the flow conditions, the cell mechanics becomes dominant and drives the shape recovery process, allowing the measurement of recovery times of the same order of magnitude than relaxation times previously published. Finally, we demonstrated that the measurement of the shape recovery time can be used to distinguish Plasmodium falciparum (causing malaria) infected RBCs from healthy RBCs.
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Affiliation(s)
- A Amirouche
- Université de Lyon, Institut des Nanotechnologies de Lyon INL-UMR5270 CNRS, Université Lyon 1, Villeurbanne F-69622, France
| | - J Esteves
- Université de Lyon, Institut des Nanotechnologies de Lyon INL-UMR5270 CNRS, Université Lyon 1, Villeurbanne F-69622, France
| | - A Lavoignat
- Malaria Research Unit, SMITh, Institut de Chimie et de Biochimie Moléculaires et Supramoléculaires ICBMS-UMR5246 CNRS, Université Lyon 1, Villeurbanne F-69622, France
| | | | - R Ferrigno
- Université de Lyon, Institut des Nanotechnologies de Lyon INL-UMR5270 CNRS, Université Lyon 1, Villeurbanne F-69622, France
| | - M Faivre
- Université de Lyon, Institut des Nanotechnologies de Lyon INL-UMR5270 CNRS, Université Lyon 1, Villeurbanne F-69622, France
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15
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Moghaddam SM, Picot S, Ahmadpour E. Interactions between hydatid cyst and regulated cell death may provide new therapeutic opportunities. ACTA ACUST UNITED AC 2019; 26:70. [PMID: 31782727 PMCID: PMC6884020 DOI: 10.1051/parasite/2019070] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 11/14/2019] [Indexed: 12/14/2022]
Abstract
Cystic echinococcosis and alveolar echinococcosis are chronic zoonotic infections, transmitted throughout the world. Development of the cestode larval stages in the liver and lungs causes damage to intermediate hosts, including humans. Several pathways leading to the suppression of host immune response and the survival of the cysts in various hosts are known. Immune response modulation and regulated cell death (RCD) play a fundamental role in cyst formation, development and pathogenesis. RCD, referring to apoptosis, necrosis and autophagy, can be triggered either via intrinsic or extrinsic cell stimuli. In this review, we provide a general overview of current knowledge on the process of RCD during echinococcosis. The study of interactions between RCD and Echinococcus spp. metacestodes may provide in-depth understanding of echinococcosis pathogenesis and open new horizons for human intervention and treatment of the disease.
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Affiliation(s)
- Sirous Mehrani Moghaddam
- Immunology Research Center, Tabriz University of Medical Sciences, 5166/15731 Tabriz, Iran - Student Research Committee, Tabriz University of Medical Sciences, 5166/15731 Tabriz, Iran
| | - Stephane Picot
- Malaria Research Unit, SMITh, ICBMS, UMR 5246 CNRS INSA CPE University Lyon, 69100 Lyon, France - Institute of Parasitology and Medical Mycology, Croix-Rousse Hospital, Hospices Civils de Lyon, 69004 Lyon, France
| | - Ehsan Ahmadpour
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, 5166/15731 Tabriz, Iran - Department of Parasitology and Mycology, Faculty of Medicine, Tabriz University of Medical Sciences, 5166/15731 Tabriz, Iran
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16
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Bienvenu AL, Leboucher G, Picot S. Comparison of fks gene mutations and minimum inhibitory concentrations for the detection of Candida glabrata resistance to micafungin: A systematic review and meta-analysis. Mycoses 2019; 62:835-846. [PMID: 31077631 DOI: 10.1111/myc.12929] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 05/07/2019] [Accepted: 05/08/2019] [Indexed: 01/06/2023]
Abstract
Candida resistance to antifungals impaired invasive candidiasis outcome. In a context of echinocandin resistance development, we aimed to evaluate the association between phenotypic resistance to micafungin and fks mutations of Candida glabrata. For this systematic review and meta-analysis, we searched MEDLINE, Scopus and Web of Science for reports published up to December 2017. Studies of C glabrata candidiasis with minimum inhibitory concentrations (MIC) determination of micafungin and fks genotyping were included. Reviews, studies not using reference methods, non-glabrata Candida, experimental isolates and undetailed mutations were excluded. Two authors independently assessed the eligibility of articles and extracted data. The main outcome was the diagnostic accuracy of fks mutations compared to micafungin MIC for C glabrata, measured as fixed-effect odd ratio. Heterogeneity was calculated with the I2 statistic. This study is registered with PROSPERO (CRD42018082023). Twenty-four studies were included in the meta-analysis. Pooled analysis found that S663P (OR 7.25, 95% CI 3.50-15.00; P < 0.00001), S629P (OR 3.70, 1.64-8.33; P = 0.002) and F659del (OR 5.66, 1.22-26.18; P = 0.03) were associated with increased risk of having a resistant isolate according to authors' interpretation of MICs. In sensitivity analysis based on new CLSI clinical breakpoints, the ORs for S663P and S629P remained significant. Genotyping of isolates of C glabrata for S663P and S629P mutations is an effective alternative to micafungin susceptibility tests. Relevant molecular markers of drug resistance will significantly improve the management of C glabrata infections.
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Affiliation(s)
- Anne-Lise Bienvenu
- Groupement Hospitalier Nord, Service Pharmacie, Hospices Civils de Lyon, Lyon, France.,ICBMS CNRS 5246, SMITh, Malaria Research Unit, Université de Lyon, Villeurbanne, France.,Groupement Hospitalier Nord, Service Hématologie, Hospices Civils de Lyon, Lyon, France
| | - Gilles Leboucher
- Groupement Hospitalier Nord, Service Pharmacie, Hospices Civils de Lyon, Lyon, France
| | - Stephane Picot
- ICBMS CNRS 5246, SMITh, Malaria Research Unit, Université de Lyon, Villeurbanne, France.,Groupement Hospitalier Nord, Institut de Parasitologie et Mycologie Médicale, Hospices Civils de Lyon, Lyon, France
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17
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Djimde A, Grobusch MP, Zoleko Manego R, Mombo-Ngoma G, Picot S, Sagara I, Sutherland C, Kone A, Doumbo OK, Pedro Gil J, Björkman A, Borrmann S, Soulama I, Fofana B, Duparc S, Dicko A, Hughes D, Winnips C, Sirima SB, Adehossi E, Ouedraogo JB, Dembele L, Zongo I, Biguenet S, Ilboudo-Sanogo E, Fofana A. OC 8721 WANECAM II – A CLINICAL TRIAL PROGRAMME TO ASSESS SAFETY, EFFICACY AND TRANSMISSION-BLOCKING PROPERTIES OF A NEW ANTIMALARIAL KAF156 (GANAPLACIDE) IN UNCOMPLICATED MALARIA IN WEST AND CENTRAL AFRICA. BMJ Glob Health 2019. [DOI: 10.1136/bmjgh-2019-edc.43] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
BackgroundDespite major progress in the past decade, malaria remains a major public health problem in sub-Saharan Africa. West and Central Africa account for nearly 2/3 of the burden currently attributable to falciparum malaria. Artemisinin-based combination therapies (ACT) are a cornerstone of our strategy for controlling and eventually eliminating malaria. However, reduced responsiveness/resistance to artemisinin derivatives and to ACTs, an increasing problem in South-East Asia is a major concern. It is of utmost importance to develop new antimalarial drugs from novel chemical classes that can replace ACTs. KAF156, an imidazolepiperazine, is a leading candidate in the antimalarial drug development pipeline. Combination of KAF156 with a Solid Dispersion Formulation of lumefantrine (LUM-SDF) is expected to be fast acting, fully curative, improve patient adherence and can potentially reduce malaria transmission.MethodsWANECAM II proposes to advance the clinical development of KAF156 through clinical trials in adults and children, with integrated capacity building and infrastructure development activities. The trial programme will be undertaken in the context of networking, team-building, leadership development and community engagement schemes that will involve intra-European, European-African and intra-African collaborative activities. WANECAM II will accelerate the clinical study of children less than 2 years of age which are the key target for new antimalarial treatments.ResultsBy the end of the project, the results are expected to contribute to the registration of KAF156/LUM-SDF through stringent regulatory health authorities, increase biomedical research capacity in the consortium and effectively promote networking among the respective teams. A new clinical research team in Niger, a grossly underrepresented country in the African research landscape, will be developed and further increase capacity and infrastructure in the consortium.ConclusionProviding a new antimalarial drug combination that does not contain an artemisinin derivative and is effective against resistant P. falciparum strains as well as gametocytes and that is likely to be taken in 3 or fewer single doses will be a major advance in the field. The new combination of KAF156 with LUM-SDF is expected to provide such major advance upon successful conclusion of the WANECAM II project.
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18
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Traore K, Konate S, Thera MA, Niangaly A, Ba A, Niare A, Arama C, Di Cristofaro J, Baby M, Picot S, Chiaroni J, Boetsch G, Doumbo OK. Genetic polymorphisms with erythrocyte traits in malaria endemic areas of Mali. PLoS One 2019; 14:e0209966. [PMID: 30608964 PMCID: PMC6319707 DOI: 10.1371/journal.pone.0209966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Accepted: 12/16/2018] [Indexed: 11/19/2022] Open
Abstract
African populations are characterized by high degree of genetic diversity. This high genetic diversity could result from the natural selection pressure. Several studies have described an association between some genetic diversities and difference of susceptibility to infectious diseases like malaria. It seems therefore important to consider genetic diversity impact when interpreting results of clinical trials in malaria endemic areas. This study aimed to determine the genetic polymorphism with erythrocyte traits in different populations of malaria endemic area in Mali. The cross-sectional surveys were carried out in different ethnic groups living in malaria endemic areas in Mali. Six milliliters of whole blood were collected in EDTA vials from each participant after informed consent has been obtained. The ABO, RH, Kell, MNSs, Kidd and Duffy systems phenotypes were assessed by the technique of gel filtration. A total of 231 subjects were included from six villages. The blood groups phenotypes O (40.7%) and A (31.2%) were more frequent with respective allele frequencies of 0.65 and 0.21. In the RH system the haplotypes R0 (0.55), r (0.20) and R1 (0.13) were the most frequent. Seven percent (7%) of Duffy positive and 4% of Glycophorin B deficiency (S-s-) were observed among participants. All participants were Kell negative. ABO and RH systems were polymorphic in these ethnic groups in Mali. Their implication in susceptibility to malaria should be taken into account in clinical trials interpretation, and for prevention of blood transfusion risks during anemia frequently caused by malaria in children.
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Affiliation(s)
- Karim Traore
- Malaria Research and Training Center, DEAP/FMPOS, UMI3189, Université des Sciences, des Techniques et des Technologies de Bamako, Bamako, Mali
- Univ Lyon, Université Claude Bernard Lyon 1, Institut de Chimie et Biochimie Moléculaire et Supramoléculaire, UMR-5246 CNRS-INSA-CPE, Malaria Research Unit, Lyon, France
- Unité Mixte International UMI 3189 –Environnement—Santé—Sociétés, (CNRS/USTTB, CNRST/UGB/UCAD) Université Cheikh Anta Diop, Dakar, Sénégal
- * E-mail:
| | - Salimata Konate
- Malaria Research and Training Center, DEAP/FMPOS, UMI3189, Université des Sciences, des Techniques et des Technologies de Bamako, Bamako, Mali
| | - Mahamadou A. Thera
- Malaria Research and Training Center, DEAP/FMPOS, UMI3189, Université des Sciences, des Techniques et des Technologies de Bamako, Bamako, Mali
- Unité Mixte International UMI 3189 –Environnement—Santé—Sociétés, (CNRS/USTTB, CNRST/UGB/UCAD) Université Cheikh Anta Diop, Dakar, Sénégal
| | - Amadou Niangaly
- Malaria Research and Training Center, DEAP/FMPOS, UMI3189, Université des Sciences, des Techniques et des Technologies de Bamako, Bamako, Mali
| | - Alhassane Ba
- Centre National de Transfusion Sanguine (CNTS), Bamako, Mali
| | - Alassane Niare
- Malaria Research and Training Center, DEAP/FMPOS, UMI3189, Université des Sciences, des Techniques et des Technologies de Bamako, Bamako, Mali
| | - Charles Arama
- Malaria Research and Training Center, DEAP/FMPOS, UMI3189, Université des Sciences, des Techniques et des Technologies de Bamako, Bamako, Mali
| | | | - Mounirou Baby
- Centre National de Transfusion Sanguine (CNTS), Bamako, Mali
| | - Stephane Picot
- Univ Lyon, Université Claude Bernard Lyon 1, Institut de Chimie et Biochimie Moléculaire et Supramoléculaire, UMR-5246 CNRS-INSA-CPE, Malaria Research Unit, Lyon, France
| | - Jacques Chiaroni
- Aix-Marseille Université,CNRS, EFS, ADES UMR 7268, Marseille, France
| | - Gilles Boetsch
- Unité Mixte International UMI 3189 –Environnement—Santé—Sociétés, (CNRS/USTTB, CNRST/UGB/UCAD) Université Cheikh Anta Diop, Dakar, Sénégal
| | - Ogobara K. Doumbo
- Malaria Research and Training Center, DEAP/FMPOS, UMI3189, Université des Sciences, des Techniques et des Technologies de Bamako, Bamako, Mali
- Unité Mixte International UMI 3189 –Environnement—Santé—Sociétés, (CNRS/USTTB, CNRST/UGB/UCAD) Université Cheikh Anta Diop, Dakar, Sénégal
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Zemali N, Picot S, Naze F, Rouger E, Manaquin R, Koumar Y, Bertolotti A, Jaubert J. Examen microbiologique des selles par biologie moléculaire : retour d’expérience d’un CHU d’outre-mer sur 3 ans. Med Mal Infect 2018. [DOI: 10.1016/j.medmal.2018.04.174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Hoarau G, Albrieux M, Martin-Phipps T, Zitte-Zehler K, Borry L, Peytral J, Garcia-Hermoso D, Picot S. [Fungal keratitis: A 5-year monocentric retrospective study on Reunion Island]. J Fr Ophtalmol 2018; 41:321-325. [PMID: 29681463 DOI: 10.1016/j.jfo.2017.09.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 09/25/2017] [Accepted: 09/27/2017] [Indexed: 11/30/2022]
Abstract
OBJECTIVES Fungal keratitis is rare in France, but could be a severe sight-threatening condition. Here, we aimed to describe the epidemiology of fungal keratitis in Réunion Island. METHODS In a retrospective study, we analyzed 13 culture-proven keratitis episodes, occurred between January 2013 and July 2017 in the ophthalmology ward of a University Hospital, Saint-Pierre. Twelve isolates were genotyped and antifungal susceptibility testing was performed. RESULTS Corneal abrasion caused by vegetable matter was the main predisposing factor. Stromal infiltration was observed in 12 patients. Six patients did not response to medical treatment, requiring surgical care, including two enucleations surgery. Fusarium solani (n = 6) and Fusarium dimerum (n = 4) were the main fungal species involved in fungal keratitis. Clinical failures were more prevalent with F. solani infections. The lowest minimal inhibitory concentrations for Fusarium sp. were observed with voriconazole and amphotericin B. CONCLUSION In Reunion Island, the epidemiology of fungal keratitis is characterized by the predominance of Fusarium species, potentially involved in visual loss. This pattern is consistent with the epidemiology usually observed in tropical areas.
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Affiliation(s)
- G Hoarau
- Service de bactériologie-virologie-parasitologie, CHU de La Réunion, BP 350, 97448 Saint-Pierre, Réunion.
| | - M Albrieux
- Service d'ophtalmologie, CHU de La Réunion, BP 350, 97448 Saint-Pierre, Réunion
| | - T Martin-Phipps
- Service d'ophtalmologie, CHU de La Réunion, BP 350, 97448 Saint-Pierre, Réunion
| | - K Zitte-Zehler
- Service d'ophtalmologie, CHU de La Réunion, BP 350, 97448 Saint-Pierre, Réunion
| | - L Borry
- Service d'ophtalmologie, CHU de La Réunion, BP 350, 97448 Saint-Pierre, Réunion
| | - J Peytral
- Pharmacie, CHU de La Réunion, BP 350, 97448 Saint-Pierre, Réunion
| | - D Garcia-Hermoso
- Institut Pasteur, CNRS, unité de mycologie moléculaire, Centre national de référence mycoses invasives et antifongiques (CNRMA), URA3012, 75724 Paris, France
| | - S Picot
- Service de bactériologie-virologie-parasitologie, CHU de La Réunion, BP 350, 97448 Saint-Pierre, Réunion
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Thomas E, Bertolotti A, Barreau A, Klisnick J, Tournebize P, Borgherini G, Zemali N, Jaubert J, Jouvion G, Bretagne S, Picot S. From phaeohyphomycosis to disseminated chromoblastomycosis: A retrospective study of infections caused by dematiaceous fungi. Med Mal Infect 2018; 48:278-285. [PMID: 29656841 DOI: 10.1016/j.medmal.2017.09.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 10/30/2016] [Accepted: 09/12/2017] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Infections caused by dematiaceous fungi are more common in tropical and subtropical areas. We aimed to describe the clinical, microbiological and therapeutic aspects of case patients diagnosed at a University Hospital located on an Indian Ocean island. PATIENTS AND METHODS We performed an observational retrospective study of infections caused by dematiaceous fungi diagnosed at the University Hospital of Saint-Pierre, Reunion, from 2000 to 2015. Mycological identifications were performed at the National Reference Center for Invasive Mycosis and Antifungal Agents (Paris). RESULTS The review of clinical and microbiological data of 11 patients identified revealed that five were infected by dematiaceous fungi. Two had cutaneous phaeohyphomycosis, two had cerebral phaeohyphomycosis and one had cutaneous chromoblastomycosis with brain and potentially medullary dissemination. Skin lesions and cerebral abscesses were quite varied. CONCLUSION Infections caused by dematiaceous fungi are rare. Medullary and brain localizations are extremely rare, especially for chromoblastomycosis. Cutaneous manifestations of phaeohyphomycosis are varied; diagnosis is thus more difficult. It is therefore important, when confronted with a chronic tumor-like lesion in endemic areas, to perform a biopsy for pathology and fungal culture. While surgical excision is not always sufficient, medical treatment of these infections is not standardized, but relies on an azole, which can be associated with another antifungal agent.
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Affiliation(s)
- E Thomas
- Service de bactériologie, virologie, parasitologie, centre hospitalier universitaire de La Réunion, site Sud, BP 350, 97448 Saint-Pierre cedex, Reunion
| | - A Bertolotti
- Service de maladies infectieuses, centre hospitalier universitaire de La Réunion, site Sud, BP 350, 97448 Saint-Pierre cedex, Reunion
| | - A Barreau
- Service de bactériologie, virologie, parasitologie, centre hospitalier universitaire de La Réunion, site Sud, BP 350, 97448 Saint-Pierre cedex, Reunion
| | - J Klisnick
- Service de maladies infectieuses, centre hospitalier universitaire de La Réunion, site Sud, BP 350, 97448 Saint-Pierre cedex, Reunion
| | - P Tournebize
- Service de neurologie, centre hospitalier universitaire de La Réunion, site Sud, BP 350, 97448 Saint-Pierre cedex, Reunion
| | - G Borgherini
- Service de maladies infectieuses, centre hospitalier universitaire de La Réunion, site Sud, BP 350, 97448 Saint-Pierre cedex, Reunion
| | - N Zemali
- Service de bactériologie, virologie, parasitologie, centre hospitalier universitaire de La Réunion, site Sud, BP 350, 97448 Saint-Pierre cedex, Reunion
| | - J Jaubert
- Service de bactériologie, virologie, parasitologie, centre hospitalier universitaire de La Réunion, site Sud, BP 350, 97448 Saint-Pierre cedex, Reunion
| | - G Jouvion
- Institut Pasteur, histopathologie humaine et modèles animaux, 28, rue du Docteur-Roux, 75015 Paris, France
| | - S Bretagne
- Institut Pasteur, centre national de référence des mycoses invasives et des antifongiques, 28, rue du Docteur-Roux, 75015 Paris, France
| | - S Picot
- Service de bactériologie, virologie, parasitologie, centre hospitalier universitaire de La Réunion, site Sud, BP 350, 97448 Saint-Pierre cedex, Reunion.
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Carmona-Gutierrez D, Bauer MA, Zimmermann A, Aguilera A, Austriaco N, Ayscough K, Balzan R, Bar-Nun S, Barrientos A, Belenky P, Blondel M, Braun RJ, Breitenbach M, Burhans WC, Büttner S, Cavalieri D, Chang M, Cooper KF, Côrte-Real M, Costa V, Cullin C, Dawes I, Dengjel J, Dickman MB, Eisenberg T, Fahrenkrog B, Fasel N, Fröhlich KU, Gargouri A, Giannattasio S, Goffrini P, Gourlay CW, Grant CM, Greenwood MT, Guaragnella N, Heger T, Heinisch J, Herker E, Herrmann JM, Hofer S, Jiménez-Ruiz A, Jungwirth H, Kainz K, Kontoyiannis DP, Ludovico P, Manon S, Martegani E, Mazzoni C, Megeney LA, Meisinger C, Nielsen J, Nyström T, Osiewacz HD, Outeiro TF, Park HO, Pendl T, Petranovic D, Picot S, Polčic P, Powers T, Ramsdale M, Rinnerthaler M, Rockenfeller P, Ruckenstuhl C, Schaffrath R, Segovia M, Severin FF, Sharon A, Sigrist SJ, Sommer-Ruck C, Sousa MJ, Thevelein JM, Thevissen K, Titorenko V, Toledano MB, Tuite M, Vögtle FN, Westermann B, Winderickx J, Wissing S, Wölfl S, Zhang ZJ, Zhao RY, Zhou B, Galluzzi L, Kroemer G, Madeo F. Guidelines and recommendations on yeast cell death nomenclature. Microb Cell 2018; 5:4-31. [PMID: 29354647 PMCID: PMC5772036 DOI: 10.15698/mic2018.01.607] [Citation(s) in RCA: 121] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 12/29/2017] [Indexed: 12/18/2022]
Abstract
Elucidating the biology of yeast in its full complexity has major implications for science, medicine and industry. One of the most critical processes determining yeast life and physiology is cel-lular demise. However, the investigation of yeast cell death is a relatively young field, and a widely accepted set of concepts and terms is still missing. Here, we propose unified criteria for the defi-nition of accidental, regulated, and programmed forms of cell death in yeast based on a series of morphological and biochemical criteria. Specifically, we provide consensus guidelines on the differ-ential definition of terms including apoptosis, regulated necrosis, and autophagic cell death, as we refer to additional cell death rou-tines that are relevant for the biology of (at least some species of) yeast. As this area of investigation advances rapidly, changes and extensions to this set of recommendations will be implemented in the years to come. Nonetheless, we strongly encourage the au-thors, reviewers and editors of scientific articles to adopt these collective standards in order to establish an accurate framework for yeast cell death research and, ultimately, to accelerate the pro-gress of this vibrant field of research.
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Affiliation(s)
| | - Maria Anna Bauer
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
| | - Andreas Zimmermann
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
| | - Andrés Aguilera
- Centro Andaluz de Biología, Molecular y Medicina Regenerativa-CABIMER, Universidad de Sevilla, Sevilla, Spain
| | | | - Kathryn Ayscough
- Department of Biomedical Science, University of Sheffield, Sheffield, United Kingdom
| | - Rena Balzan
- Department of Physiology and Biochemistry, University of Malta, Msida, Malta
| | - Shoshana Bar-Nun
- Department of Biochemistry and Molecular Biology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Antonio Barrientos
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, USA
- Department of Neurology, University of Miami Miller School of Medi-cine, Miami, USA
| | - Peter Belenky
- Department of Molecular Microbiology and Immunology, Brown University, Providence, USA
| | - Marc Blondel
- Institut National de la Santé et de la Recherche Médicale UMR1078, Université de Bretagne Occidentale, Etablissement Français du Sang Bretagne, CHRU Brest, Hôpital Morvan, Laboratoire de Génétique Moléculaire, Brest, France
| | - Ralf J. Braun
- Institute of Cell Biology, University of Bayreuth, Bayreuth, Germany
| | | | - William C. Burhans
- Department of Molecular and Cellular Biology, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Sabrina Büttner
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | | | - Michael Chang
- European Research Institute for the Biology of Ageing, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Katrina F. Cooper
- Dept. Molecular Biology, Graduate School of Biomedical Sciences, Rowan University, Stratford, USA
| | - Manuela Côrte-Real
- Center of Molecular and Environmental Biology, Department of Biology, University of Minho, Braga, Portugal
| | - Vítor Costa
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
- Departamento de Biologia Molecular, Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | | | - Ian Dawes
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, Australia
| | - Jörn Dengjel
- Department of Biology, University of Fribourg, Fribourg, Switzerland
| | - Martin B. Dickman
- Institute for Plant Genomics and Biotechnology, Texas A&M University, Texas, USA
| | - Tobias Eisenberg
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
- BioTechMed Graz, Graz, Austria
| | - Birthe Fahrenkrog
- Laboratory Biology of the Nucleus, Institute for Molecular Biology and Medicine, Université Libre de Bruxelles, Charleroi, Belgium
| | - Nicolas Fasel
- Department of Biochemistry, University of Lausanne, Lausanne, Switzerland
| | - Kai-Uwe Fröhlich
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
| | - Ali Gargouri
- Laboratoire de Biotechnologie Moléculaire des Eucaryotes, Center de Biotechnologie de Sfax, Sfax, Tunisia
| | - Sergio Giannattasio
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, National Research Council, Bari, Italy
| | - Paola Goffrini
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Campbell W. Gourlay
- Kent Fungal Group, School of Biosciences, University of Kent, Canterbury, United Kingdom
| | - Chris M. Grant
- Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
| | - Michael T. Greenwood
- Department of Chemistry and Chemical Engineering, Royal Military College, Kingston, Ontario, Canada
| | - Nicoletta Guaragnella
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, National Research Council, Bari, Italy
| | | | - Jürgen Heinisch
- Department of Biology and Chemistry, University of Osnabrück, Osnabrück, Germany
| | - Eva Herker
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | | | - Sebastian Hofer
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
| | | | - Helmut Jungwirth
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
| | - Katharina Kainz
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
| | - Dimitrios P. Kontoyiannis
- Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Paula Ludovico
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Minho, Portugal
- ICVS/3B’s - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Stéphen Manon
- Institut de Biochimie et de Génétique Cellulaires, UMR5095, CNRS & Université de Bordeaux, Bordeaux, France
| | - Enzo Martegani
- Department of Biotechnolgy and Biosciences, University of Milano-Bicocca, Milano, Italy
| | - Cristina Mazzoni
- Instituto Pasteur-Fondazione Cenci Bolognetti - Department of Biology and Biotechnology "C. Darwin", La Sapienza University of Rome, Rome, Italy
| | - Lynn A. Megeney
- Sprott Center for Stem Cell Research, Ottawa Hospital Research Institute, The Ottawa Hospital, Ottawa, Canada
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Canada
- Department of Medicine, Division of Cardiology, University of Ottawa, Ottawa, Canada
| | - Chris Meisinger
- Institute of Biochemistry and Molecular Biology, ZBMZ, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Jens Nielsen
- Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
- Novo Nordisk Foundation Center for Biosustainability, Chalmers University of Technology, Gothenburg, Sweden
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, DK2800 Lyngby, Denmark
| | - Thomas Nyström
- Institute for Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Heinz D. Osiewacz
- Institute for Molecular Biosciences, Goethe University, Frankfurt am Main, Germany
| | - Tiago F. Outeiro
- Department of Experimental Neurodegeneration, Center for Nanoscale Microscopy and Molecular Physiology of the Brain, Center for Biostructural Imaging of Neurodegeneration, University Medical Center Göttingen, Göttingen, Germany
- Max Planck Institute for Experimental Medicine, Göttingen, Germany
- Institute of Neuroscience, The Medical School, Newcastle University, Framlington Place, Newcastle Upon Tyne, NE2 4HH, United Kingdom
- CEDOC, Chronic Diseases Research Centre, NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Lisboa, Portugal
| | - Hay-Oak Park
- Department of Molecular Genetics, The Ohio State University, Columbus, OH, USA
| | - Tobias Pendl
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
| | - Dina Petranovic
- Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
- Novo Nordisk Foundation Center for Biosustainability, Chalmers University of Technology, Gothenburg, Sweden
| | - Stephane Picot
- Malaria Research Unit, SMITh, ICBMS, UMR 5246 CNRS-INSA-CPE-University Lyon, Lyon, France
- Institut of Parasitology and Medical Mycology, Hospices Civils de Lyon, Lyon, France
| | - Peter Polčic
- Department of Biochemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava, Slovak Republic
| | - Ted Powers
- Department of Molecular and Cellular Biology, College of Biological Sciences, UC Davis, Davis, California, USA
| | - Mark Ramsdale
- Biosciences, University of Exeter, Exeter, United Kingdom
| | - Mark Rinnerthaler
- Department of Cell Biology and Physiology, Division of Genetics, University of Salzburg, Salzburg, Austria
| | - Patrick Rockenfeller
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
- Kent Fungal Group, School of Biosciences, University of Kent, Canterbury, United Kingdom
| | | | - Raffael Schaffrath
- Institute of Biology, Division of Microbiology, University of Kassel, Kassel, Germany
| | - Maria Segovia
- Department of Ecology, Faculty of Sciences, University of Malaga, Malaga, Spain
| | - Fedor F. Severin
- A.N. Belozersky Institute of physico-chemical biology, Moscow State University, Moscow, Russia
| | - Amir Sharon
- School of Plant Sciences and Food Security, Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Stephan J. Sigrist
- Institute for Biology/Genetics, Freie Universität Berlin, Berlin, Germany
| | - Cornelia Sommer-Ruck
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
| | - Maria João Sousa
- Center of Molecular and Environmental Biology, Department of Biology, University of Minho, Braga, Portugal
| | - Johan M. Thevelein
- Laboratory of Molecular Cell Biology, Institute of Botany and Microbiology, KU Leuven, Leuven, Belgium
- Center for Microbiology, VIB, Leuven-Heverlee, Belgium
| | - Karin Thevissen
- Centre of Microbial and Plant Genetics, KU Leuven, Leuven, Belgium
| | | | - Michel B. Toledano
- Institute for Integrative Biology of the Cell (I2BC), SBIGEM, CEA-Saclay, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Mick Tuite
- Kent Fungal Group, School of Biosciences, University of Kent, Canterbury, United Kingdom
| | - F.-Nora Vögtle
- Institute of Biochemistry and Molecular Biology, ZBMZ, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | | | - Joris Winderickx
- Department of Biology, Functional Biology, KU Leuven, Leuven-Heverlee, Belgium
| | | | - Stefan Wölfl
- Institute of Pharmacy and Molecu-lar Biotechnology, Heidelberg University, Heidelberg, Germany
| | - Zhaojie J. Zhang
- Department of Zoology and Physiology, University of Wyoming, Laramie, USA
| | - Richard Y. Zhao
- Department of Pathology, University of Maryland School of Medicine, Baltimore, USA
| | - Bing Zhou
- School of Life Sciences, Tsinghua University, Beijing, China
| | - Lorenzo Galluzzi
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA
- Sandra and Edward Meyer Cancer Center, New York, NY, USA
- Université Paris Descartes/Paris V, Paris, France
| | - Guido Kroemer
- Université Paris Descartes/Paris V, Paris, France
- Equipe 11 Labellisée Ligue Contre le Cancer, Centre de Recherche des Cordeliers, Paris, France
- Cell Biology and Metabolomics Platforms, Gustave Roussy Comprehensive Cancer Center, Villejuif, France
- INSERM, U1138, Paris, France
- Université Pierre et Marie Curie/Paris VI, Paris, France
- Pôle de Biologie, Hôpital Européen Georges Pompidou, Paris, France
- Institute, Department of Women’s and Children’s Health, Karolinska University Hospital, Stockholm, Sweden
| | - Frank Madeo
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
- BioTechMed Graz, Graz, Austria
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Traore K, Thera MA, Bienvenu AL, Arama C, Bonnot G, Lavoignat A, Doumbo OK, Picot S. Interaction between environment, nutrient-derived metabolites and immunity: A possible role in malaria susceptibility/resistance in Fulani and Dogon of Mali. PLoS One 2017; 12:e0189724. [PMID: 29261755 PMCID: PMC5738089 DOI: 10.1371/journal.pone.0189724] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 11/30/2017] [Indexed: 01/12/2023] Open
Abstract
The role of some nutrient-derived metabolites on the innate and adaptive immune responses is now established. Global research approach investigating the interplay between environment, lifestyle and the host's immune responses is crucial in the understanding of malaria susceptibility. Advanced Glycation end products (AGE), which are food-derived metabolites result from the link between reducing sugar and amino group of proteins, lipids or nucleic acids. The level of exposure to AGEs varies depending on the type of diet. The dysfunction of the immune system induced by AGE and the cellular receptors for AGEs (RAGE) in susceptibility to bacterial infection has been described. But no study has yet explored their role in susceptibility to malaria. Therefore, we aimed to evaluate systemic AGE and RAGE gene polymorphism in two sympatric populations with previously described difference of susceptibility to malaria. We measured by ELISA the plasma levels of AGEs, and their soluble receptors (sRAGE) from 170 volunteers (68 Fulani and 102 Dogon). We also determined by real-time quantitative PCR the expression of RAGE, and the -374 T/A, -429 T/C polymorphisms and 63 bp deletion by fragment length restriction polymorphism. The prevalence rate of Plasmodium in Fulani and Dogon were respectively 42.64% and 51.30% for P. falciparum, 5.88% and 6.5% for P. malariae, 0% and 2.6% for P. ovale. The average AGE was 12.65 μg/ml, and 496.48pg/ml for sRAGE. Highest levels of sRAGE were observed in Fulani (563,07pg/ml, 95% CI [547.81-580.13] vs 465.68pg/ml, 95% CI [331.19-467.51]) for Dogon, p = 0.00001. Fulani had the lowest mean of AGE (10.21μg/ml, 95% CI [8.02-10.92]) compared to Dogon (16.88μg/ml, 95% CI [13.92-17.96]; p = 0.00001. RAGE was more expressed in Dogon than Fulani (0.08 vs 0.04), P = 0.08. The -374A polymorphism vas more frequent in Fulani (32%) compared to Dogon (20%). The chronic exposure to dietary AGE could lead to immune responses impairment and polymorphism with implications in malaria susceptibility. More studies are necessary to better investigate this hypothesis.
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Affiliation(s)
- Karim Traore
- Malaria Research and Training Centre, Université des Sciences, des Techniques et des Technologies de Bamako, MRTC/USTTB, Bamako, Mali
- Univ Lyon, Université Claude Bernard Lyon 1, Institut de Chimie et Biochimie Moléculaire et Supramoléculaire, UMR-5246 CNRS-INSA-CPE, Malaria Research Unit, Lyon, France
- * E-mail:
| | - Mahamadou A Thera
- Malaria Research and Training Centre, Université des Sciences, des Techniques et des Technologies de Bamako, MRTC/USTTB, Bamako, Mali
| | - Anne-Lise Bienvenu
- Univ Lyon, Université Claude Bernard Lyon 1, Institut de Chimie et Biochimie Moléculaire et Supramoléculaire, UMR-5246 CNRS-INSA-CPE, Malaria Research Unit, Lyon, France
- Institut de Parasitologie et Mycologie Médicale, Hospices Civils de Lyon, Lyon, France
| | - Charles Arama
- Malaria Research and Training Centre, Université des Sciences, des Techniques et des Technologies de Bamako, MRTC/USTTB, Bamako, Mali
| | - Guillaume Bonnot
- Univ Lyon, Université Claude Bernard Lyon 1, Institut de Chimie et Biochimie Moléculaire et Supramoléculaire, UMR-5246 CNRS-INSA-CPE, Malaria Research Unit, Lyon, France
| | - Adeline Lavoignat
- Univ Lyon, Université Claude Bernard Lyon 1, Institut de Chimie et Biochimie Moléculaire et Supramoléculaire, UMR-5246 CNRS-INSA-CPE, Malaria Research Unit, Lyon, France
| | - Ogobara K Doumbo
- Malaria Research and Training Centre, Université des Sciences, des Techniques et des Technologies de Bamako, MRTC/USTTB, Bamako, Mali
| | - Stephane Picot
- Univ Lyon, Université Claude Bernard Lyon 1, Institut de Chimie et Biochimie Moléculaire et Supramoléculaire, UMR-5246 CNRS-INSA-CPE, Malaria Research Unit, Lyon, France
- Institut de Parasitologie et Mycologie Médicale, Hospices Civils de Lyon, Lyon, France
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Bichara C, Flahaut P, Costa D, Bienvenu AL, Picot S, Gargala G. Cryptic Plasmodium ovale concurrent with mixed Plasmodium falciparum and Plasmodium malariae infection in two children from Central African Republic. Malar J 2017; 16:339. [PMID: 28810865 PMCID: PMC5558716 DOI: 10.1186/s12936-017-1979-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 08/07/2017] [Indexed: 12/02/2022] Open
Abstract
Background Since several malaria parasite species are usually present in a particular area, co-infections with more than one species of Plasmodium are more likely to occur in humans infected in these areas. In many mixed infections, parasite densities of the cryptic species may be low and often not recognized in clinical practice. Case presentation Two children (3 and 6 years old) adopted recently from Central African Republic were admitted to hospital because of intermittent fever. Thin blood smears stained with Giemsa showed Plasmodium falciparum and Plasmodium malariae co-infection for both children at admission. They were both treated with atovaquone-proguanil combination for 3 days. At day 7, both thin blood smears examination remained negative but at day 28, thin blood smear was positive for P. malariae trophozoites and for Plasmodium ovale for the girl and her brother, respectively. Samples collected at day 1 and day 28 were submitted to real-time PCR showing the presence of the three parasite species (P. falciparum, P malariae and P. ovale) in admission blood samples from the two children and only P. ovale at day 28. Conclusions Twenty-eight days follow-up after treatment led to detection of a third parasite species in the blood of these two patients suggesting covert co-infection and a delayed appearance of one cryptic species following treatment. Concurrently infecting malaria species could be mutually suppressive, with P. falciparum tending to dominate other species. These observations provide more evidence that recommendations for treatment of imported malaria should take into account the risk of concurrent or cryptic infection with Plasmodium species. Clinicians and biologists should be aware of the underestimated frequency of mixed infections with cryptic species and of the importance of patient follow-up at day 28. Future guidelines should shed more light on the treatment of mixed infection and on the interest of using artemisinin-based combinations for falciparum and non-falciparum species.
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Affiliation(s)
- Cynthia Bichara
- Department of Parasitology-Mycology, Rouen University Hospital, 76 000, Rouen, France
| | - Philippe Flahaut
- Department of Pediatrics, Rouen University Hospital, 76 000, Rouen, France
| | - Damien Costa
- Department of Parasitology-Mycology, Rouen University Hospital, 76 000, Rouen, France
| | - Anne-Lise Bienvenu
- Malaria Research Unit, SMITh, ICBMS UMR 5246 CNRS, University Lyon 1, Lyon, France
| | - Stephane Picot
- Malaria Research Unit, SMITh, ICBMS UMR 5246 CNRS, University Lyon 1, Lyon, France.,Institut de Parasitologie-Mycologie Médicale, Hospices Civils de Lyon, Lyon, France
| | - Gilles Gargala
- Department of Parasitology-Mycology, Rouen University Hospital, 76 000, Rouen, France.
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Holman AM, Allyn J, Miltgen G, Lugagne N, Traversier N, Picot S, Lignereux A, Oudin C, Belmonte O, Allou N. Surveillance of carbapenemase-producing Enterobacteriaceae in the Indian Ocean Region between January 2010 and December 2015. Med Mal Infect 2017; 47:333-339. [PMID: 28602387 DOI: 10.1016/j.medmal.2017.04.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 04/12/2017] [Indexed: 10/19/2022]
Abstract
BACKGROUND The aim of this study was to trace the emergence of carbapenemase-producing Enterobacteriaceae (CPE) on Reunion Island, a French overseas territory well suited for the surveillance of CPE emergence in patients from the entire Indian Ocean Region. METHODS This retrospective multicenter study was conducted on Reunion Island between 2010 and 2015. RESULTS A total of 43 CPEs were isolated during the course of the study, in 36 patients (50% in the last year alone). Among these patients, 21 had a link with a foreign country (58%), mainly Mauritius (47.6%). Over the same period, CPEs were isolated from 13 of 1735 (0.7%) repatriated patients to Reunion Island from another country of the Indian Ocean Region. The incidence of isolation of CPEs in the repatriated patients treated in Mauritius was higher (9.2%) than in patients treated in Madagascar or the Comoros Islands (<1%, P<0.001). The most commonly isolated microorganism was Klebsiella pneumoniae (39.5%). The most frequently identified carbapenemase was NDM-1 (81.4%); 100% and 56% of the NDM-1 strains were susceptible to tigecycline and colistin, respectively. In-hospital mortality rate was higher in patients presenting with CPE infection than in patients without CPE infection (75% vs. 25%, P=0.04). CONCLUSION As elsewhere in the world, the number of CPE cases on Reunion Island is on the rise. Most cases involve patients from Mauritius, which justifies screening and isolating CPE in patients from that country.
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Affiliation(s)
- A M Holman
- Réanimation polyvalente, centre hospitalier universitaire Felix-Guyon, allée des Topazes, 97405 Saint-Denis, Réunion
| | - J Allyn
- Réanimation polyvalente, centre hospitalier universitaire Felix-Guyon, allée des Topazes, 97405 Saint-Denis, Réunion
| | - G Miltgen
- Bacteriologie, centre hospitalier universitaire Felix-Guyon, allée des Topazes, 97405 Saint-Denis, Réunion
| | - N Lugagne
- Unité d'hygiène et de lutte contre les infections hospitalières, centre hospitalier universitaire Felix-Guyon, allée des Topazes, 97405 Saint-Denis, Réunion
| | - N Traversier
- Bacteriologie, centre hospitalier universitaire Felix-Guyon, allée des Topazes, 97405 Saint-Denis, Réunion
| | - S Picot
- Bactériologie, centre hospitalier universitaire Sud Réunion, 97410 Saint-Pierre, Réunion
| | - A Lignereux
- Biologie, centre hospitalier Gabriel-Martin, 97460 Saint-Paul, Réunion
| | - C Oudin
- Comité de lutte contre les infections nosocomiales, groupe hospitalier Est Réunion, 97470 Saint-Benoît, Réunion
| | - O Belmonte
- Bacteriologie, centre hospitalier universitaire Felix-Guyon, allée des Topazes, 97405 Saint-Denis, Réunion
| | - N Allou
- Réanimation polyvalente, centre hospitalier universitaire Felix-Guyon, allée des Topazes, 97405 Saint-Denis, Réunion.
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Zemali N, Gérardin P, Bactora M, Camuset G, Bertolotti A, Pagès F, Picot S, Michault A, Tortosa P, Jaubert J. Séroprévalence des rickettsioses dans une région d’outre-mer. Med Mal Infect 2017. [DOI: 10.1016/j.medmal.2017.03.167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Jaubert J, Atiana L, Devos P, Somon-Payet C, Robillard P, Bertolotti A, Larrieu S, Picot S, Boukerrou M, Gérardin P. Séroprévalence de la fièvre Q chez les accouchées. Med Mal Infect 2017. [DOI: 10.1016/j.medmal.2017.03.168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mboussou Y, Jaubert J, Naze F, Folio C, Randrianaivo H, Camuset G, Larrieu S, Picot S, Boukerrou M, Gérardin P. Complications périnatales associées à la fièvre Q. Med Mal Infect 2017. [DOI: 10.1016/j.medmal.2017.03.365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Bertolotti A, Zemali N, Manaquin R, Borgherini G, Foucher A, Jaubert J, Picot S, Gerardin P, Poubeau P, Camuset G. Impact de Mycoplasma genitalium dans un CDAG d’outre-mer à la lumière des autres maladies sexuellement transmissibles : étude transversale. Ann Dermatol Venereol 2016. [DOI: 10.1016/j.annder.2016.09.490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Zemali N, Guillemot G, Jaubert J, Picot S, Thomas E, Becquart J, Camuset G, Gérardin P, Michault A, Kwiatek S. Helicobacter pylori resistance to clarithromycin in Reunion Island. Med Mal Infect 2016; 46:385-389. [DOI: 10.1016/j.medmal.2016.06.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 04/26/2016] [Accepted: 06/17/2016] [Indexed: 12/31/2022]
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Cachera M, Lagrange-Xélot M, Bellec L, Moiton M, Manaquin R, Picot S, Lignereux A, Degasne I. IST-07 - Infections disséminées à gonocoque : étude rétrospective départementale de 2009 à 2015. Med Mal Infect 2016. [DOI: 10.1016/s0399-077x(16)30438-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Thomas E, Bertolotti A, Barreau A, Klisnick J, Tournebize P, Borgherini G, Zemali N, Jouvion G, Bretagne S, Picot S. IPF-07 - De la phaeohyphomycose disséminée à la chromoblastomycose : une étude rétrospective sur 15 ans. Med Mal Infect 2016. [DOI: 10.1016/s0399-077x(16)30426-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Hafirassou AZ, Gassem N, Picot S, Mihoubi I. Molecular diagnosis of dermatophytes agent of onychomycosis at Constantine (Algeria). J Mycol Med 2015. [DOI: 10.1016/j.mycmed.2015.06.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Abstract
Mechanisms of cell death in unicellular parasites have been subjects of debate for the last decade, with studies demonstrating evidence of apoptosis or non-apoptosis like mechanisms, including necrosis, and autophagy. Recent clarifications on the definition of regulated or accidental cell death by The Nomenclature Committee on Cell Death provides an opportunity to reanalyze some data, re-evaluate conclusions in the light of parasite diversity, and to propose alternative arguments in the context of malaria drug resistance, considering lack of really new drugs in the pipeline. Deciphering the mechanisms of death may help in detection of new drug targets and the design of innovative drugs. However, classifications have been evolving rapidly since initial description of "programmed cell death", leading to some uncertainty as to whether Plasmodium cell death is accidental or regulated.
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Affiliation(s)
- Fatimata Sow
- University Claude Bernard Lyon 1, Malaria Research Unit, SMITh, ICBMS, UMR 5246 CNRS-INSA-CPE-UCBL1, 8 avenue Rockefeller, 69373 Lyon cedex 08, France
| | - Mary Nyonda
- University Claude Bernard Lyon 1, Malaria Research Unit, SMITh, ICBMS, UMR 5246 CNRS-INSA-CPE-UCBL1, 8 avenue Rockefeller, 69373 Lyon cedex 08, France
| | - Anne-Lise Bienvenu
- University Claude Bernard Lyon 1, Malaria Research Unit, SMITh, ICBMS, UMR 5246 CNRS-INSA-CPE-UCBL1, 8 avenue Rockefeller, 69373 Lyon cedex 08, France. ; Hospices Civils de Lyon, Institut de Parasitologie et de Mycologie Médicale (IP2M), Hôpital de la Croix-Rousse, 103 grande rue de la Croix-Rousse, 69317 Lyon cedex 04, France
| | - Stephane Picot
- University Claude Bernard Lyon 1, Malaria Research Unit, SMITh, ICBMS, UMR 5246 CNRS-INSA-CPE-UCBL1, 8 avenue Rockefeller, 69373 Lyon cedex 08, France. ; Hospices Civils de Lyon, Institut de Parasitologie et de Mycologie Médicale (IP2M), Hôpital de la Croix-Rousse, 103 grande rue de la Croix-Rousse, 69317 Lyon cedex 04, France
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Dupont D, Geffriaud T, Boibieux A, Rimmele T, Picot S, Persat F. Galactomannan antigen and Aspergillus antibody responses in a transplant recipient with multiple invasive fungal infections. JMM Case Rep 2015. [DOI: 10.1099/jmmcr.0.000026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- D. Dupont
- Institut de Parasitologie et Mycologie Médicale, Hôpital de la Croix Rousse, Hospices Civils de Lyon, F‐69004 Lyon, France
| | - T. Geffriaud
- Intensive Care Unit Department, Pavillion P, Hôpital Edouard Herriot, Hospices Civils de Lyon, F‐69003 Lyon, France
| | - A. Boibieux
- Infectious Diseases Department, Hôpital de la Croix Rousse, Hospices Civils de Lyon, F‐69004 Lyon, France
| | - T. Rimmele
- Intensive Care Unit Department, Pavillion P, Hôpital Edouard Herriot, Hospices Civils de Lyon, F‐69003 Lyon, France
| | - S. Picot
- Malaria Research Unit, ICBMS, CNRS UMR 5246, Lyon I University, France
- Institut de Parasitologie et Mycologie Médicale, Hôpital de la Croix Rousse, Hospices Civils de Lyon, F‐69004 Lyon, France
| | - F. Persat
- EA 4169 Lyon I Claude Bernard University, France
- Institut de Parasitologie et Mycologie Médicale, Hôpital de la Croix Rousse, Hospices Civils de Lyon, F‐69004 Lyon, France
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Traore K, Lavoignat A, Bonnot G, Sow F, Bess GC, Chavant M, Gay F, Doumbo O, Picot S. Drying anti-malarial drugs in vitro tests to outsource SYBR green assays. Malar J 2015; 14:90. [PMID: 25880553 PMCID: PMC4339011 DOI: 10.1186/s12936-015-0600-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Accepted: 01/30/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Measurement of anti-malarial drug efficacy and resistance relies mainly on in vivo clinical trials, in vitro/ex vivo assays and molecular markers detection. The existing in vitro/ex vivo assays, in particular those that are using non-radioactive devices, need to be standardized and adapted to field conditions. SYBR Green assay offers a rapid and cheap alternative to other in vitro assays, but it requires tools not commonly available in field laboratories. Here is described a modified SYBR green I protocol to perform the parasite growth test with blood samples in endemic areas, followed later by the SYBR green fluorescence assay performed at a specialized laboratory level. METHODS In vitro susceptibility of Plasmodium falciparum clones HB3, 3D7, W2 and 7G8 to chloroquine (CQ), dihydroartemisinin (DHA), pyronaridine (PYD) and piperaquine (PPQ) was tested. Fresh isolates of P. falciparum from imported malaria cases were collected for ex vivo assays. The parasite suspension was added in 96-well plates predosed with anti-malarial drugs and incubated for 72 hours at 37°C, 5% CO2. SYBR green I protocol was modified to dry the plates after freeze-thawed process to mimic storage and shipping conditions. The plates were rehydrated with 200 μl of complete RPMI medium for fluorescence assay. RESULTS There were no significant differences in IC₅₀ values of CQ, DHA, PYD and PPQ, determined by the modified protocol, compared to standard protocol. Longer storage did not affect the IC₅₀ values. CONCLUSION The SYBR green I modified protocol produced reliable results and could be a suitable method for in vitro/ex vivo assays in field.
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Affiliation(s)
- Karim Traore
- Malaria Research and Training Center, DEAP/FMPOS, UMI3189, Université des Sciences, des Techniques et des Technologies de Bamako, BP 1805, Bamako, Mali. .,Malaria Research Unit, SMITH, ICBMS, UMR 5246 CNRS-INSA-CPE-University Claude Bernard Lyon1, 8 Avenue Rockefeller, 69373, Lyon, Cedex 08, France.
| | - Adeline Lavoignat
- Malaria Research Unit, SMITH, ICBMS, UMR 5246 CNRS-INSA-CPE-University Claude Bernard Lyon1, 8 Avenue Rockefeller, 69373, Lyon, Cedex 08, France.
| | - Guillaume Bonnot
- Malaria Research Unit, SMITH, ICBMS, UMR 5246 CNRS-INSA-CPE-University Claude Bernard Lyon1, 8 Avenue Rockefeller, 69373, Lyon, Cedex 08, France.
| | - Fatimata Sow
- Malaria Research Unit, SMITH, ICBMS, UMR 5246 CNRS-INSA-CPE-University Claude Bernard Lyon1, 8 Avenue Rockefeller, 69373, Lyon, Cedex 08, France.
| | - Giuliana C Bess
- Institut de Parasitologie et Mycologie Médicale, Hospices Civils de Lyon, Lyon, France.
| | - Marjorie Chavant
- Institut de Parasitologie et Mycologie Médicale, Hospices Civils de Lyon, Lyon, France.
| | - Frederick Gay
- AP-HP, Service de Parasitologie-Mycologie, Université Pierre et Marie Curie Paris 6, Paris, France.
| | - Ogobara Doumbo
- Malaria Research and Training Center, DEAP/FMPOS, UMI3189, Université des Sciences, des Techniques et des Technologies de Bamako, BP 1805, Bamako, Mali.
| | - Stephane Picot
- Malaria Research Unit, SMITH, ICBMS, UMR 5246 CNRS-INSA-CPE-University Claude Bernard Lyon1, 8 Avenue Rockefeller, 69373, Lyon, Cedex 08, France. .,Institut de Parasitologie et Mycologie Médicale, Hospices Civils de Lyon, Lyon, France.
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Borgherini G, Camuset G, Foucher A, Maiza JC, Thibault FM, Picot S, Poubeau P. The first autochthonous case of human melioidosis in Reunion Island. Med Mal Infect 2015; 45:47-9. [PMID: 25596804 DOI: 10.1016/j.medmal.2014.11.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2014] [Revised: 11/13/2014] [Accepted: 11/30/2014] [Indexed: 11/19/2022]
Affiliation(s)
- G Borgherini
- Service de maladies infectieuses, centre hospitalier universitaire de Saint-Pierre, BP 350, 97448 Saint-Pierre, Reunion.
| | - G Camuset
- Service de maladies infectieuses, centre hospitalier universitaire de Saint-Pierre, BP 350, 97448 Saint-Pierre, Reunion
| | - A Foucher
- Service de maladies infectieuses, centre hospitalier universitaire de Saint-Pierre, BP 350, 97448 Saint-Pierre, Reunion
| | - J C Maiza
- Endocrinologie, centre hospitalier universitaire de Saint-Pierre, 97448 Saint-Pierre, Reunion
| | - F M Thibault
- Institut de recherche biomédicale des Armées, 91220 Brétigny-sur-Orge, France
| | - S Picot
- Microbiologie, centre hospitalier universitaire de Saint-Pierre, 97448 Saint-Pierre, Reunion
| | - P Poubeau
- Service de maladies infectieuses, centre hospitalier universitaire de Saint-Pierre, BP 350, 97448 Saint-Pierre, Reunion
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Affiliation(s)
- Stephane Picot
- Malaria Research Unit, SMITH, ICBMS, UMR 5246 CNRS-INSA-CPE-UCBL1, University Lyon 1, France
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Rousseau N, Picot S, Bienvenu AL. Erythropoietin Combined with Liposomal Amphotericin B Improves Outcome during Disseminated Aspergillosis in Mice. Front Immunol 2014; 5:502. [PMID: 25352847 PMCID: PMC4196557 DOI: 10.3389/fimmu.2014.00502] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 09/27/2014] [Indexed: 12/18/2022] Open
Abstract
Disseminated aspergillosis is responsible for a high mortality rate, despite the use of antifungal drugs. Adjuvant therapies are urgently needed to improve the outcome. The aim of this study was to demonstrate that the cytoprotective effect of erythropoietin (EPO) combined with amphotericin B can reduce the mortality rate in a murine model of disseminated aspergillosis. After infection with Aspergillus fumigatus, neutropenic mice were randomized to receive vehicle or 7.5 mg/kg liposomal amphotericin B (LAmB) or 7.5 mg/kg LAmB combined with 1000 IU/kg EPO (16 mice per group). Aspergillus galactomannan and organ cultures were performed to evaluate fungal burden at day 5. Cumulative long-term survival was analyzed at day 12 post-infection according to the Kaplan–Meier method. At day 5, fungal burden was similar between non-treated and treated groups. At day 12, mortality rates were 75, 62.5, and 31% in control group, LAmB group, and EPO/LAmB group, respectively. We observed a significant decrease in mortality using EPO/LAmB combination compared to control group (p < 0.01). LAmB single treatment did not improve the survival rate compared to control group (p = 0.155). Our results provide the first evidence that EPO improved the outcome of mice presenting with disseminated aspergillosis when combined with amphotericin B.
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Affiliation(s)
- Nathalie Rousseau
- Institut de Parasitologie et Mycologie Médicale, Hospices Civils de Lyon , Lyon , France
| | - Stephane Picot
- Institut de Parasitologie et Mycologie Médicale, Hospices Civils de Lyon , Lyon , France ; Malaria Research Unit, ICBMS, CNRS UMR 5246, University Lyon 1 , Lyon , France
| | - Anne-Lise Bienvenu
- Institut de Parasitologie et Mycologie Médicale, Hospices Civils de Lyon , Lyon , France ; Malaria Research Unit, ICBMS, CNRS UMR 5246, University Lyon 1 , Lyon , France
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Abstract
Most of the people suffering malaria do not know how complex is that disease and how hard searchers are working to fight against it. Some of these people are dying from malaria while still efficient drug combinations should have save their lives. But these drugs were not available for them when needed, or the diagnosis was wrong, or the drugs were fake, or the doctor was untrained, or the patient had no money. Should this terrible reality preclude the need for continuous research to develop new antimalarial drugs? Should people working in laboratories located in non-endemic countries adapt their project to that reality? Malaria eradication, then elimination was announced and broadcasted in the late sixties, and later forgotten. From that failure due to chloroquine resistance and after decades of less arrogant work, billions of dollars are on the table again to claim this goal. There were bed nets, drugs, vaccine and communication as starters, let's hope people in endemic countries will be winners.
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Affiliation(s)
| | | | - Anne-Lise Bienvenu
- Malaria Research Unit, Faculty of Medicine, SMITH, ICBMS, UMR 5246 CNRS-INSA-CPE-UCBL1, University Lyon 1, Lyon, France.
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Robert J, Pantel A, Merens A, Lavigne JP, Nicolas-Chanoine MH, Brieu N, Vrain A, Scanvic A, Porcheret H, Garnier P, Bertrand X, Descamps D, Hombrouck C, Soullie B, Heym B, de Montclos H, Garrec H, Levast M, Mendes-Martins L, Decousser JW, Huet C, Bert F, Herzig V, Klein JP, Nebbad B, Hendricx S, Verhaeghe A, Lafaurie C, Lanselle C, Elsayed F, Carrer A, Drieux-Rouzet L, Evreux F, Varache C, Wallet F, Martin C, Le-Bris JM, Moulhade MC, Deville E, Menouni O, Jean-Pierre H, Pierrot P, Delarbre JM, Coude B, Foca M, Degand N, Prots L, Pantel A, Adam MN, Laurens E, Raskine L, Laouira S, Arlet G, Sanchez R, Peuchant O, Grau V, Laurent C, De-Champs C, Vachee A, Harriau P, Merens A, Belmonte O, Michel G, Henry C, Picot S, Glatz I, Gueudet T, Honderlick P, Cavalie L, Galinier JL, Patoz P, van-der-Mee-Marquet N, Haguenoer E, Canis F, Kassis-Chikhany N, Le-Garrec Y. Incidence rates of carbapenemase-producing Enterobacteriaceae clinical isolates in France: a prospective nationwide study in 2011-12. J Antimicrob Chemother 2014; 69:2706-12. [DOI: 10.1093/jac/dku208] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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Persat F, Eynard JC, Perucchetti Y, Picot S, Poggi B. Évaluation externe de qualité sérodiagnostic fongique : bilan à trois ans. J Mycol Med 2014. [DOI: 10.1016/j.mycmed.2014.01.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Paul C, Coustou D, Lahfa M, Bulai-Livideanu C, Doss N, Mokthar I, Turki H, Nouira R, Fazaa B, Ben Osman A, Zourabichvili O, Cazeau C, Coubetergues H, Picot S, Bienvenu AL, Voisard JJ. A multicenter, randomized, open-label, controlled study comparing the efficacy, safety and cost-effectiveness of a sequential therapy with RV4104A ointment, ciclopiroxolamine cream and ciclopirox film-forming solution with amorolfine nail lacquer alone in dermatophytic onychomycosis. Dermatology 2013; 227:157-64. [PMID: 24051622 DOI: 10.1159/000353667] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Accepted: 06/13/2013] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The efficacy of topical antifungals is controversial. OBJECTIVE To compare the efficacy and safety of a sequential(SEQ) treatment with chemical nail avulsion and topical antifungals to amorolfine nail lacquer in dermatophytic onychomycosis. METHODS This was a randomized,parallel-group, controlled study comparing a 36-week SEQ treatment with chemical nail avulsion with RV4104A ointment(class I medical device containing 40% urea) followed by ciclopirox cream for 8 weeks and ciclopirox nail lacquer for 25 weeks (SEQ group) to amorolfine nail lacquer for 36 weeks (AMO group). Patients had to have a big toenail onychomycosis,sparing the matrix. The primary efficacy criterion was complete cure at week 48. A cost-effectiveness analysis was performed. RESULTS A total of 142 patients were randomized. The complete cure rate at week 48 was significantly higher in the SEQ group than in the AMO group (36.6 vs. 12.7%, p = 0.001). Clinical cure at week 48 was observed in 53.5% of patients in the SEQ group versus 17% in the AMO group (p < 0.01). The cost of cure per patient was 50% lower with SEQ treatment (EUR 33) compared with amorolfine(EUR 76). CONCLUSION A treatment of onychomycosis comprising chemical avulsion of the pathological nail, ciclopirox cream and nail lacquer is significantly more effective than amorolfine nail lacquer.
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Frahtia-Benotmane K, Mihoubi I, Picot S. [Molecular diagnosis by real-time PCR of Leishmania isolated from the Phlebotomus vector]. Med Sante Trop 2013; 23:230. [PMID: 24001645 DOI: 10.1684/mst.2013.0216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The authors report the demonstration of Leishmania in the tissue of Phlebotomus samples captured in the region of Constantine in 2010. The four species that could be identified were: Phlebotomus larroussius, P. perfiliewi, P. longicuspis, and Sergentomyia minuta.
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Affiliation(s)
- K Frahtia-Benotmane
- Laboratoire de biosystématique et écologie des arthropodes, université Constantine I, Algérie.
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Bénet T, Voirin N, Nicolle MC, Picot S, Michallet M, Vanhems P. Estimation of the incubation period of invasive aspergillosis by survival models in acute myeloid leukemia patients. Med Mycol 2013; 51:214-8. [DOI: 10.3109/13693786.2012.687462] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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46
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Parmeland L, Gazon M, Guerin C, Argaud L, Lehot JJ, Bastien O, Allaouchiche B, Michallet M, Picot S, Bienvenu AL. Candida albicansand non-Candida albicansfungemia in an institutional hospital during a decade. Med Mycol 2013; 51:33-7. [DOI: 10.3109/13693786.2012.686673] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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Abstract
Cerebral malaria (CM) is still responsible for unacceptable death rate, while new antimalarial drugs were recently developed. CM pathophysiology shares essential biological features with cerebral ischemia. Because erythropoietin (Epo) was demonstrated to reduce mortality rate during experimental cerebral ischemia, in the early 2000, we wondered whether Epo could help to reduce the burden of CM. There is now evidence that Epo high doses could prevent early mortality during cerebral malaria. This evidence was obtained first using mice model of cerebral malaria, and later confirmed by prospective clinical trial in endemic area. High doses of Epo are needed to cross the blood-brain barrier and to favor the cytoprotective versus hematopoietic effect of this pleiotropic cytokine.
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Affiliation(s)
- Anne-Lise Bienvenu
- Malaria Research Unit, SMITH ICBMS UMR CNRS, UCBL, INSA Lyon, Lyon, France
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Juul S, Nielsen CJF, Labouriau R, Roy A, Tesauro C, Jensen PW, Harmsen C, Kristoffersen EL, Chiu YL, Frøhlich R, Fiorani P, Cox-Singh J, Tordrup D, Koch J, Bienvenu AL, Desideri A, Picot S, Petersen E, Leong KW, Ho YP, Stougaard M, Knudsen BR. Droplet microfluidics platform for highly sensitive and quantitative detection of malaria-causing Plasmodium parasites based on enzyme activity measurement. ACS Nano 2012; 6:10676-83. [PMID: 23121492 PMCID: PMC3528816 DOI: 10.1021/nn3038594] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
We present an attractive new system for the specific and sensitive detection of the malaria-causing Plasmodium parasites. The system relies on isothermal conversion of single DNA cleavage-ligation events catalyzed specifically by the Plasmodium enzyme topoisomerase I to micrometer-sized products detectable at the single-molecule level. Combined with a droplet microfluidics lab-on-a-chip platform, this design allowed for sensitive, specific, and quantitative detection of all human-malaria-causing Plasmodium species in single drops of unprocessed blood with a detection limit of less than one parasite/μL. Moreover, the setup allowed for detection of Plasmodium parasites in noninvasive saliva samples from infected patients. During recent years malaria transmission has declined worldwide, and with this the number of patients with low-parasite density has increased. Consequently, the need for accurate detection of even a few parasites is becoming increasingly important for the continued combat against the disease. We believe that the presented droplet microfluidics platform, which has a high potential for adaptation to point-of-care setups suitable for low-resource settings, may contribute significantly to meet this demand. Moreover, potential future adaptation of the presented setup for the detection of other microorganisms may form the basis for the development of a more generic platform for diagnosis, fresh water or food quality control, or other purposes within applied or basic science.
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Affiliation(s)
- Sissel Juul
- Department of Biomedical Engineering, Duke University, Durham, North Carolina, USA
| | | | - Rodrigo Labouriau
- Department of Molecular Biology and Genetics, Aarhus University, Denmark
| | - Amit Roy
- Department of Molecular Biology and Genetics, Aarhus University, Denmark
| | - Cinzia Tesauro
- Department of Biology, University of Rome “Tor Vergata”, Via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - Pia W. Jensen
- Department of Molecular Biology and Genetics, Aarhus University, Denmark
| | - Charlotte Harmsen
- Department of Molecular Biology and Genetics, Aarhus University, Denmark
| | | | - Ya-Ling Chiu
- Department of Biomedical Engineering, Duke University, Durham, North Carolina, USA
| | - Rikke Frøhlich
- Department of Molecular Biology and Genetics, Aarhus University, Denmark
| | - Paola Fiorani
- Institute of Translational Pharmacology, National Research Council, CNR, Rome, Italy
| | - Janet Cox-Singh
- School of Medicine, University of St Andrews, Fife KY16 9TF, Scotland and The Malaria Research Centre, University Malaysia Sarawak, Kuching, Sarawak, Malaysia
| | - David Tordrup
- Department of Molecular Biology and Genetics, Aarhus University, Denmark
| | - Jørn Koch
- Department of Pathology, Aarhus University Hospital, Denmark
| | - Anne-Lise Bienvenu
- Malaria Research Unit, SMITH, ICBMS, UMR CNRS 5246, University Lyon1, and Hospices civils de Lyon, Lyon, France
| | - Alessandro Desideri
- Department of Biology, University of Rome “Tor Vergata”, Via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - Stephane Picot
- Malaria Research Unit, SMITH, ICBMS, UMR CNRS 5246, University Lyon1, and Hospices civils de Lyon, Lyon, France
| | - Eskild Petersen
- Department of Infectious Diseases, Institute of Clinical Medicine, Aarhus University Hospital-Skejby, Denmark
| | - Kam W. Leong
- Department of Biomedical Engineering, Duke University, Durham, North Carolina, USA
| | - Yi-Ping Ho
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Denmark
| | - Magnus Stougaard
- Department of Pathology, Aarhus University Hospital, Denmark
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Denmark
| | - Birgitta R. Knudsen
- Department of Molecular Biology and Genetics, Aarhus University, Denmark
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Denmark
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Sutanto I, Suprianto S, Widiaty A, Ruckert P, von Bethmann A, de Monbrison F, Picot S, Laihad F, Baird JK. Good efficacy of artemether-lumefantrine for uncomplicated falciparum malaria in eastern Sumba, East Nusatenggara, Indonesia. Acta Med Indones 2012; 44:187-192. [PMID: 22983072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
AIM to evaluate the safety and efficacy of a fixed combination of artemether-lumefantrine for likely use against failures of the artesunate-amodiaquine first line therapy. METHODS the study was an open label single arm uncontrolled trial. we evaluated the safety and efficacy of standard artemether-lumefantrine therapy in 59 subjects with uncomplicated malaria caused by Plasmodium falciparum on the island of Sumba in eastern Indonesia. No treatment failures occurred up to day 35. One subject had recurrent parasitemia on day 42 that showed a genotype consistent with recrudescence. The efficacy of this therapy was thus estimated to be 98.3% (95% confidence interval=95%-100%). Descriptive analysis was done using the SPSS 12 computer software. RESULTS two hundred and thirteen P. falciparum patients met the inclusion criteria for in vivo efficacy study, 79 were given artemether-lumefantrine and 134 were treated under another protocol with artesunate-amodiaquine or sulfadoxine-pyrimethamine. Among 79 eligible subjects, 59 successfully completed the 42-day test. As expected, the mean PCT was longer than the mean FCT, i.e. 1.34 ± 0.67 (95% CI 1.21-1.47) and 1.05 ± 0.05 (95% CI 0.95-1.15) days, respectively. On day 3 of treatment, both fever and asexual stage of P. falciparum disappeared in all subjects. Observation until Day 35 showed that all of the 59 subjects treated with artemether-lumefantrine were cured. CONCLUSION the findings of this uncontrolled study suggest good safety and efficacy of artemether-lumefantrine for treatment of uncomplicated falciparum malaria on Sumba Island in the Lesser Sundas archipelago of eastern Indonesia.
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Affiliation(s)
- Inge Sutanto
- Department of Parasitology, Faculty of Medicine, University of Indonesia, Jakarta Pusat, Indonesia.
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50
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Okombo J, Ohuma E, Picot S, Nzila A. Update on genetic markers of quinine resistance in Plasmodium falciparum. Mol Biochem Parasitol 2011; 177:77-82. [DOI: 10.1016/j.molbiopara.2011.01.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2010] [Revised: 01/13/2011] [Accepted: 01/19/2011] [Indexed: 10/18/2022]
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