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4. Community-acquired bacterial meningitis in adults: in-hospital prognosis, long-term disability and determinants of outcome in a multicentre prospective cohort

Author

Duval, Xavier, Hoen, Bruno, Mourvillier, Bruno, Ploy, Marie-Cécile, Tubiana, Sarah, Varon, Emmanuelle, Caron, François, Bollaert, Pierre-Edouard, Gaillot, Olivier, Taha, Muhamed-Kheir, Poyart, Claire, Bonacorsi, Stephane, Vandenesch, François, Cambau, Emmanuelle, Lecuit, Marc, Gravet, Alain, Frachet, Bruno, Broucker, Thomas De, Levy Bruhl, Daniel, Raffi, François, Anguel, Nadia, Argaud, Laurent, Arista, Sophie, Armand-Lefevre, Laurence, Balavoine, Stéphanie, Baraduc, Régine, Barnaud, Guilène, Beraud, Guillaume, Bernard, Louis, Bernars, Georges, Bertei, Dominique, Bessede, Emilie, Billard Pomares, Typhaine, Biron, Charlotte, Bland, Stéphane, Boileau, Julien, Boubeau, Patrice, Bourdon, Sandra, Bousquet, Aurore, Boyer, Sophie, Bozorg-Grayeli, Alexis, Bret, Laurent, Bretonniere, Cédric, Bricaire, François, Brocas, Elsa, Brun, Michel, Buret, Jennifer, Burucoa, Christophe, Cabalion, Jean, Cabon, Mathieu, Camuset, Guillaume, Canevet, Christophe, Carricajo, Anne, Castan, Bernard, Caumes, Eric, Cazanave, Charles, Chabrol, Amélie, Challan-Belval, Thibaut, Chanteperdrix-Marillier, Vanessa, Chaplain, Chantal, Charlier-Woerther, Caroline, Chaussade, Hélène, Chirouze, Catherine, Clair, Bernard, Colot, Julien, Conil, Jean-Marie, Cordel, Hugues, Cormier, Philippe, Cousson, Joël, Cronier, Pierrick, Cua, Eric, Dao-Dubremetz, Anne, Dargere, Sylvie, Degand, Nicolas, Dekeyser, Sophie, Delaune, Deborah, Denes, Eric, Dequin, Pierre-Francois, Descamps, Diane, Descloux, Elodie, Desmaretz, Jean-Luc, Diehl, Jean-Luc, Dimet, Jérôme, Dinh, Aurélien, Escaut, Lelia, Fabe, Claude, Faibis, Frédéric, Flateau, Clara, Fonsale, Nathalie, Forestier, Emmanuel, Fortineau, Nicolas, Gagneux-Brunon, Amandine, Garandeau, Garcia, Magali, Garot, Denis, Gaudry, Stéphane, Goehringer, François, Gregoire-Faucher, Valérie, Grosset, Marine, Gubavu, Camélia, Gueit, Isabelle, Guelon, Dominique, Guimard, Thomas, Guinard, Jérôme, Hadou, Tahar, Helene, Jean-Pierre, Henard, Sandrine, Henry, Benoit, Hochart, Anne-Cécile, Illes, Gabriela, Jaffuel, Sylvain, Jarrin, Irène, Jaureguy, Françoise, Joseph, Cédric, Juvin, Marie-Emmanuelle, Kayal, Samer, Lacassin, Flore, Lamaury, Isabelle, Lanotte, Philippe, Laurens, Etienne, Laurichesse, Henri, Le Brun, Cécile, Le Moing, Vincent, Le Turnier, Paul, Lecuyer, Hervé, Ledru, Sylvie, Legrix, Céline, Lemaignen, Adrien, Lemble, Chantal, Lemee, Ludovic, Lesens, Olivier, Levast, Marion, Lhommet, Claire, Males, Silvija, Malpote, Edith, Martin-Blondel, Guillaume, Marx, Matthieu, Masson, Raphael, Matray, Olivier, Mbadi, Aurore, Mechai, Frédéric, Mellon, Guillaume, Merens, Audrey, Meyohas, Marie Caroline, Michon, Adrien, Mootien Yoganaden, Joy, Morquin, David, Mouly, Stéphane, Mrozek, Natacha, Nguyen, Sophie, Nguyen, Yohan, Ogielska, Maja, Oziol, Eric, Page, Bernard, Patrat-Delon, Solène, Patry, Isabelle, Pechinot, André, Picot, Sandrine, Pierrejean, Piroth, Lionel, Plassart, Claire, Plessis, Patrice, Portel, Laurent, Poubeau, Patrice, Poupard, Marie, Prazuck, Thierry, Quaesaet, Luc, Ramanantsoa, Adriatsiferana, Rapp, Christophe, Raskine, Laurent, Raymond, Josette, Revest, Matthieu, Riche, Agnès, Robaday-Voisin, Stéphanie, Robin, Frédéric, Romaszko, Jean-Pierre, Rousseau, Florence, Roux, Anne-Laure, Royer, Cecile, Saada, Matthieu, Salmon, Dominique, Saroufim, Carlo, Schmit, Jean-Luc, Sebire, Manuela, Segonds, Christine, Sivadon-Tardy, Valérie, Soismier, Nathalie, Kerneis, Solen, Son, Olivia, Sunder, Simon, Suy, Florence, Tande, Didier, Tankovic, Jacques, Valin, Nadia, Van Grunderbeeck, Nicolas, Verdon, Renaud, Vergnaud, Michel, Vernet-Garnier, Véronique, Vidal, Magali, Vitrat, Virginie, Vittecoq, Daniel, Vuotto, Fanny, Coordination and statistical analyses, Gorenne, Isabelle, Laouenan, Cédric, Marcault, Estelle, Mentre, France, Pasquet, Blandine, Roy, Carine, Tubiana, S., Varon, E., Biron, C., Ploy, M.-C., Mourvillier, B., Taha, M.-K., Revest, M., Poyart, C., Martin-Blondel, G., Lecuit, M., Cua, E., Pasquet, B., Preau, M., Hoen, B., and Duval, X.

Published
2020
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8. Early-onset gout and rare deficient variants of the lactate dehydrogenase D gene.

Author

Bardin, Thomas, Ducrot, Yves-Marie, Nguyen, Quang, Letavernier, Emmanuel, Zaworski, Jeremy, Ea, Hang-Korng, Touzain, Fréderic, Do, Minh Duc, Colot, Julien, Barguil, Yann, Biron, Antoine, Resche-Rigon, Matthieu, Richette, Pascal, and Collet, Corinne

Subjects
GOUT diagnosis, HYPERURICEMIA, AFRICANS, MELANESIANS, SEQUENCE analysis, GENETIC mutation, HUMAN genome, GENETIC variation, LACTATE dehydrogenase, ENZYME-linked immunosorbent assay, DESCRIPTIVE statistics, RESEARCH funding, GOUT
Abstract

Objectives To investigate whether the lactate dehydrogenase D (LDHD) gene deficiency causes juvenile-onset gout. Methods We used whole-exome sequencing for two families and a targeted gene-sequencing panel for an isolated patient. d- lactate dosages were analysed using ELISA. Results We demonstrated linkage of juvenile-onset gout to homozygous carriage of three rare distinct LDHD variants in three different ethnicities. In a Melanesian family, the variant was (NM_153486.3: c.206C>T; rs1035398551) and, as compared with non-homozygotes, homozygotes had higher hyperuricaemia (P  = 0.02), lower fractional clearance of urate (P  = 0.002), and higher levels of d -lactate in blood (P  = 0.04) and urine (P  = 0.06). In a second, Vietnamese, family, very severe juvenile-onset gout was linked to homozygote carriage of an undescribed LDHD variant (NM_153486.3: c.1363dupG) leading to a frameshift followed by a stop codon, p.(AlaGly432fsTer58). Finally, a Moroccan man, with early-onset and high d -lactaturia, whose family was unavailable for testing, was homozygous for another rare LDHD variant [NM_153486.3: c.752C>T, p.(Thr251Met)]. Conclusion Rare, damaging LDHD variants can cause autosomal recessive early-onset gout, the diagnosis of which can be suspected by measuring high d -lactate levels in the blood and/or urine. [ABSTRACT FROM AUTHOR]

Published
2023
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11. Antimicrobial activity of Xylopia pancheri Baill. Leaf extract against susceptible and resistant Staphylococcus aureus.

Author

Werler, Nadine, Guentas, Linda, Colot, Julien, Hnawia, Edouard, Matsui, Mariko, and Nour, Mohammed

Abstract

Antibacterial activity of Xylopia pancheri Baill. (Annonaceae) leaf extract was investigated against susceptible Staphylococcus aureus, methicillin‐resistant S. aureus (MRSA) and extended‐spectrum‐β‐lactamase (ESBL)‐producing Pseudomonas aeruginosa. Results showed that X. pancheri leaf extract displayed antibacterial activity against S. aureus with higher inhibitory effect on MRSA compared to control gentamycin antibiotic, and IC50 value of 36.97 μg/mL [95%CI:29.59–46.18] against MRSA. [ABSTRACT FROM AUTHOR]

Published
2023
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12. Ertapenem Supplemented Selective Media as a New Strategy to Distinguish β-Lactam-Resistant Enterobacterales: Application to Clinical and Wastewater Samples.

Author

Bourles, Alexandre, Kainiu, Malia, Ukeiwe, Damaris, Brunet, Nina, Despaux, Camille, Biron, Antoine, Gourinat, Ann-Claire, Goarant, Cyrille, and Colot, Julien

Subjects
ERTAPENEM, RESOURCE-limited settings, SEWAGE, CLINICAL medicine, CARBAPENEMASE
Abstract

The increase in carbapenem-resistant Enterobacterales (CRE) is mostly driven by the spread of carbapenemase-producing (CP) strains. In New Caledonia, the majority of carbapenemases found are IMP-type carbapenemases that are difficult to detect on routine selective media. In this study, a culture-based method with ertapenem selection is proposed to distinguish non-CRE, non-CP-CRE, and CP-CRE from samples with very high bacterial loads. Firstly, assays were carried out with phenotypically well-characterized β-lactam-resistant Enterobacterales isolates. Then, this approach was applied to clinical and environmental samples. Presumptive CP-CRE isolates were finally identified, and the presence of a carbapenemase was assessed. In a collection of 27 phenotypically well-characterized β-lactam-resistant Enterobacterales, an ertapenem concentration of 0.5 µg·mL−1 allowed distinguishing CRE from non-CRE. A concentration of 4 µg·mL−1 allowed distinguishing CP-CRE from non-CP-CRE after nine hours of incubation. These methods allowed isolating 18 CP-CRE from hospital effluents, including the first detection of a KPC in New Caledonia. All these elements show that this cost-effective strategy to distinguish β-lactam-resistant Enterobacterales provides fast and reliable results. This could be applied in the Pacific islands or other resource-limited settings, where limited data are available. [ABSTRACT FROM AUTHOR]

Published
2023
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13. MALDI-TOF MS: An effective tool for a global surveillance of dengue vector species.

Author

Rakotonirina, Antsa, Pol, Morgane, Raharimalala, Fara Nantenaina, Ballan, Valentine, Kainiu, Malia, Boyer, Sébastien, Kilama, Sosiasi, Marcombe, Sébastien, Russet, Sylvie, Barsac, Emilie, Vineshwaran, Rama, Selemago, Malia Kaleméli, Jessop, Vincent, Robic, Geneviève, Girod, Romain, Brey, Paul T., Colot, Julien, Dupont-Rouzeyrol, Myrielle, Richard, Vincent, and Pocquet, Nicolas

Subjects
DENGUE, AEDES aegypti, DESORPTION ionization mass spectrometry, AEDES albopictus, SPECIES, ARBOVIRUS diseases, CULEX quinquefasciatus, INTRODUCED species
Abstract

Dengue, Zika and chikungunya viruses cause significant human public health burdens in the world. These arboviruses are transmitted by vector mosquito species notably Aedes aegypti and Aedes albopictus. In the Pacific region, more vector species of arboviruses belonging to the Scutellaris Group are present. Due to the expansion of human travel and international trade, the threat of their dispersal in other world regions is on the rise. Strengthening of entomological surveillance ensuring rapid detection of introduced vector species is therefore required in order to avoid their establishment and the risk of arbovirus outbreaks. This surveillance relies on accurate species identification. The aim of this study was to assess the use of the Matrix-Assisted Laser Desorption Ionization Time-Of-Flight Mass Spectrometry (MALDI-TOF MS) as a tool for an international identification and surveillance of these mosquito vectors of arboviruses. Field-mosquitoes belonging to 8 species (Ae. aegypti, Ae. albopictus, Aedes polynesiensis, Aedes scutellaris, Aedes pseudoscutellaris, Aedes malayensis, Aedes futunae and Culex quinquefasciatus) from 6 countries in the Pacific, Asian and Madagascar, were included in this study. Analysis provided evidence that a MALDI-TOF database created using mosquitoes from the Pacific region allowed suitable identification of mosquito species from the other regions. This technic was as efficient as the DNA sequencing method in identifying mosquito species. Indeed, with the exception of two Ae. pseudoscutellaris, an exact species identification was obtained for all individual mosquitoes. These findings highlight that the MALDI-TOF MS is a promising tool that could be used for a global comprehensive arbovirus vector surveillance. [ABSTRACT FROM AUTHOR]

Published
2022
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16. Eosinophilic meningitis in New Caledonia: The role of Angiostrongylus cantonensis?

Author

Melot, Bénédicte, Delvallez, Gauthier, Gourinat, Ann-Claire, Molko, Nicolas, Goarant, Cyrille, Ducrot, Yves-Marie, Huguon, Emilie, Cazorla, Cécile, Chauvet, Martine, Biron, Antoine, and Colot, Julien

Subjects
ANGIOSTRONGYLUS cantonensis, MENINGITIS, YOUNG adults, MULTIVARIATE analysis
Abstract

Introduction: Eosinophilic meningitis is a rare form of meningitis with sequelae or death occurring in approximately 2–3% of cases. The most frequent etiological agent is the parasite Angiostrongylus cantonensis. The aim of this study was to characterize New Caledonian cases and to assess the extent to which of A. cantonensis was involved. Material and methods: We performed a retrospective study of all cases of eosinophilic meningitis (EM) admitted to the Territorial Hospital of New Caledonia, from 2004 to 2019. We performed a descriptive and a multivariate analysis to identify association of variables with severe and fatal cases (or cases with sequelae). Conclusion: Angiostrongyliasis was confirmed as being responsible for 17 of the 92 reported EM cases in New Caledonia from 2004 to 2019 with most being young adults and non-walking infants, and with two peaks of incidence one during the dry season and one during the rainy season. Considering the high incidence and regularity of cases, the potential reservoirs should be identified to target prevention campaigns. [ABSTRACT FROM AUTHOR]

Published
2021
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19. Isolation of Leptospira from blood culture bottles.

Author

Girault, Dominique, Soupé-Gilbert, Marie-Estelle, Geroult, Sophie, Colot, Julien, and Goarant, Cyrille

Subjects
*LEPTOSPIRA, *LEPTOSPIROSIS diagnosis, *BLOOD testing, *POLYMERASE chain reaction, *ANTIBIOTICS, *MOLECULAR diagnosis
Abstract

With the increasing use of real-time PCR techniques, Leptospira isolation has mostly been abandoned for the diagnosis of human leptospirosis. However, there is a great value of collecting Leptospira isolates to better understand the epidemiology of this complex zoonosis and to provide the researchers with different isolates. In this study, we have successfully isolated different Leptospira strains from BacT/Alert aerobic blood culture bottles and suggest that this privileged biological material offers an opportunity to isolate leptospires. [ABSTRACT FROM AUTHOR]

Published
2017
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