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Hidalgo-Villeda F, Million M, Defoort C, Sicard F, Lagier M, Wagner C, Arroyo-Portilla C, Chasson L, Vannier T, Gorvel JP, Lelouard H, Tomas J. Un nouveau modèle murin de la malnutrition aiguë sévère infantile révèle un défaut de l’immunité de la plaque de Peyer ainsi qu’une altération du microbiote et du profil métabolomique. NUTR CLIN METAB 2022. [DOI: 10.1016/j.nupar.2021.12.012] [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: 10/18/2022]
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2
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Sarr M, Diouf FS, Lo CI, Tidjani Alou M, Alibar S, Million M, Sokhna C, Fenollar F. Taxonogenomics description of Bacillus marasmi sp. nov., a new species isolated from the stool sample. New Microbes New Infect 2021; 42:100906. [PMID: 34188938 PMCID: PMC8220230 DOI: 10.1016/j.nmni.2021.100906] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 05/11/2021] [Accepted: 05/12/2021] [Indexed: 11/05/2022] Open
Abstract
Using the culturomics method, two strains were isolated, identified, and characterised following the taxonogenomics concept. Bacillus marasmi sp. nov. strain Marseille-P3556 (= CSURP3556) is isolated from a 13-month-old girl living in Niger. The phylogenetic tree, phenotypic criteria, and genomic analysis described here clearly show that this bacterium is different from previously known bacterial species withstanding in nomenclature and new members of Bacillus genus.
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Affiliation(s)
- M Sarr
- Aix Marseille Univ, IRD, AP-HM, MEPHI, Marseille, France.,IHU-Méditerranée Infection, Marseille, France
| | - F S Diouf
- Aix Marseille Univ, IRD, AP-HM, MEPHI, Marseille, France.,IHU-Méditerranée Infection, Marseille, France
| | - C I Lo
- IHU-Méditerranée Infection, Marseille, France.,Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France
| | - M Tidjani Alou
- Aix Marseille Univ, IRD, AP-HM, MEPHI, Marseille, France.,IHU-Méditerranée Infection, Marseille, France
| | - S Alibar
- Aix Marseille Univ, IRD, AP-HM, MEPHI, Marseille, France.,IHU-Méditerranée Infection, Marseille, France
| | - M Million
- Aix Marseille Univ, IRD, AP-HM, MEPHI, Marseille, France.,IHU-Méditerranée Infection, Marseille, France
| | - C Sokhna
- IHU-Méditerranée Infection, Marseille, France.,Campus Commun UCAD-IRD of Hann, Dakar, Senegal
| | - F Fenollar
- IHU-Méditerranée Infection, Marseille, France.,Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France
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Konate S, Camara A, Lo C, Tidjani Alou M, Hamidou Togo A, Niare S, Armstrong N, Djimdé A, Thera M, Fenollar F, Raoult D, Million M. Virgibacillus doumboii sp. nov., a halophilic bacterium isolated from the stool of a healthy child in Mali. New Microbes New Infect 2021; 42:100890. [PMID: 34258018 PMCID: PMC8255231 DOI: 10.1016/j.nmni.2021.100890] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 02/19/2021] [Revised: 04/20/2021] [Accepted: 04/20/2021] [Indexed: 01/09/2023] Open
Abstract
A moderately halophilic and strictly aerobic bacterium was isolated from a human stool as part of a study on the diagnosis of childhood malnutrition in Mali. Strain Marseille-Q1616T is a Gram-stain-positive, rod-shaped, catalase-positive and oxidase-negative bacterium. It has a genome size of 3.91 Mbp with 39.79% G+C content, which contains 3954 protein-coding genes including genes encoding phosphomycin resistance and Listeria monocytogenes, 16 rRNA genes and 64 tRNA genes. Strain Marseille-Q1616T exhibited a 96.3% 16S rRNA gene sequence similarity and shared an OrthoANI value of 70.64% (the highest observed) with Virgibacillus kekensis, the phylogenetically closest validly published species. Based on phenotypic and phylogenetic evidence and genomic average nucleotide identity values, we suggest the creation of a new species within the Virgibacillus genus, named Virgibacillus doumboii sp. nov., type strain Marseille-Q1616T (= CSURQ1616).
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Affiliation(s)
- S. Konate
- Aix Marseille Université, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
- Université des Sciences, des Techniques et des Technologies de Bamako, Bamako, Mali
| | - A. Camara
- Aix Marseille Université, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
- Université des Sciences, des Techniques et des Technologies de Bamako, Bamako, Mali
| | - C.I. Lo
- IHU-Méditerranée Infection, Marseille, France
- Aix Marseille Université, IRD, AP-HM, SSA, VITROME, Marseille, France
| | - M. Tidjani Alou
- Aix Marseille Université, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - A. Hamidou Togo
- Université des Sciences, des Techniques et des Technologies de Bamako, Bamako, Mali
| | - S. Niare
- Université des Sciences, des Techniques et des Technologies de Bamako, Bamako, Mali
| | - N. Armstrong
- Aix Marseille Université, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - A. Djimdé
- Université des Sciences, des Techniques et des Technologies de Bamako, Bamako, Mali
| | - M.A. Thera
- Université des Sciences, des Techniques et des Technologies de Bamako, Bamako, Mali
| | - F. Fenollar
- IHU-Méditerranée Infection, Marseille, France
- Aix Marseille Université, IRD, AP-HM, SSA, VITROME, Marseille, France
| | - D. Raoult
- Aix Marseille Université, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - M. Million
- Aix Marseille Université, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
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Mbaye B, Tidjani Alou M, Fadlane A, Fregiere L, Alibar S, Million M, Fenollar F, Lo CI. Neobacillus massiliamazoniensis sp. nov., a new bacterial species isolated from stool sample of an inhabitant of the Amazon region. New Microbes New Infect 2021; 42:100900. [PMID: 34168882 PMCID: PMC8209264 DOI: 10.1016/j.nmni.2021.100900] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 04/16/2021] [Accepted: 05/09/2021] [Indexed: 11/26/2022] Open
Abstract
Using a culturomics approach, a strain was isolated, identified and characterised following the taxonogenomics concept. Neobacillus massiliamazoniensis sp. nov., strain LF1T (=CSURP1359) was isolated from human stool. The 16S rRNA gene sequence analysis of strain LF1T (accession number: LK021124) exhibits 98.32% similarity levels with Neobacillus bataviensis strain IDA1115 (accession number: NR_036766.1), the phylogenetically closest related species with standing in nomenclature. The draft genome size of strain LF1T (accession number: CVRB00000000) is 4.6 Mbp with a G+C content of 34.1 mol%. Analysis of phylogenic tree, genomic analysis and phenotypic criteria described here sufficiently prove that this bacterium is different from previously known bacterial species with standing in nomenclature and represents a new Neobacillus species belonging to Firmicutes phylum.
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Affiliation(s)
- B Mbaye
- Aix Marseille Univ, IRD, AP-HM, MEPHI, Marseille, France.,IHU-Méditerranée Infection, Marseille, France
| | - M Tidjani Alou
- Aix Marseille Univ, IRD, AP-HM, MEPHI, Marseille, France.,IHU-Méditerranée Infection, Marseille, France
| | - A Fadlane
- Aix Marseille Univ, IRD, AP-HM, MEPHI, Marseille, France.,IHU-Méditerranée Infection, Marseille, France
| | - L Fregiere
- Aix Marseille Univ, IRD, AP-HM, MEPHI, Marseille, France.,IHU-Méditerranée Infection, Marseille, France
| | - S Alibar
- Aix Marseille Univ, IRD, AP-HM, MEPHI, Marseille, France.,IHU-Méditerranée Infection, Marseille, France
| | - M Million
- Aix Marseille Univ, IRD, AP-HM, MEPHI, Marseille, France.,IHU-Méditerranée Infection, Marseille, France
| | - F Fenollar
- IHU-Méditerranée Infection, Marseille, France.,Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France
| | - C I Lo
- IHU-Méditerranée Infection, Marseille, France.,Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France
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Edouard S, Colson P, Melenotte C, Di Pinto F, Thomas L, La Scola B, Million M, Tissot-Dupont H, Gautret P, Stein A, Brouqui P, Parola P, Lagier JC, Raoult D, Drancourt M. Evaluating the serological status of COVID-19 patients using an indirect immunofluorescent assay, France. Eur J Clin Microbiol Infect Dis 2021; 40:361-371. [PMID: 33179133 PMCID: PMC7657073 DOI: 10.1007/s10096-020-04104-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [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: 09/24/2020] [Accepted: 11/05/2020] [Indexed: 12/13/2022]
Abstract
An indirect in-house immunofluorescent assay was developed in order to assess the serological status of COVID-19 patients in Marseille, France. Performance of IFA was compared to a commercial ELISA IgG kit. We tested 888 RT-qPCR-confirmed COVID-19 patients (1302 serum samples) and 350 controls including 200 sera collected before the pandemic, 64 sera known to be associated with nonspecific serological interference, 36 sera from non-coronavirus pneumonia and 50 sera from patient with other common coronavirus to elicit false-positive serology. Incorporating an inactivated clinical SARS-CoV-2 isolate as the antigen, the specificity of the assay was measured as 100% for IgA titre ≥ 1:200, 98.6% for IgM titre ≥ 1:200 and 96.3% for IgG titre ≥ 1:100 after testing a series of negative controls. IFA presented substantial agreement (86%) with ELISA EUROIMMUN SARS-CoV-2 IgG kit (Cohen's Kappa = 0.61). The presence of antibodies was then measured at 3% before a 5-day evolution up to 47% after more than 15 days of evolution. We observed that the rates of seropositivity as well as the titre of specific antibodies were both significantly higher in patients with a poor clinical outcome than in patients with a favourable evolution. These data, which have to be integrated into the ongoing understanding of the immunological phase of the infection, suggest that detection anti-SARS-CoV-2 antibodies is useful as a marker associated with COVID-19 severity. The IFA assay reported here is useful for monitoring SARS-CoV-2 exposure at the individual and population levels.
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Affiliation(s)
- S Edouard
- IHU-Méditerranée Infection, 19-21 boulevard Jean Moulin, 13005, Marseille, France
- Aix Marseille Univ., IRD, AP-HM, MEPHI, Marseille, France
| | - P Colson
- IHU-Méditerranée Infection, 19-21 boulevard Jean Moulin, 13005, Marseille, France
- Aix Marseille Univ., IRD, AP-HM, MEPHI, Marseille, France
| | - C Melenotte
- IHU-Méditerranée Infection, 19-21 boulevard Jean Moulin, 13005, Marseille, France
| | - F Di Pinto
- IHU-Méditerranée Infection, 19-21 boulevard Jean Moulin, 13005, Marseille, France
| | - L Thomas
- IHU-Méditerranée Infection, 19-21 boulevard Jean Moulin, 13005, Marseille, France
| | - B La Scola
- IHU-Méditerranée Infection, 19-21 boulevard Jean Moulin, 13005, Marseille, France
- Aix Marseille Univ., IRD, AP-HM, MEPHI, Marseille, France
| | - M Million
- IHU-Méditerranée Infection, 19-21 boulevard Jean Moulin, 13005, Marseille, France
- Aix Marseille Univ., IRD, AP-HM, MEPHI, Marseille, France
| | - H Tissot-Dupont
- IHU-Méditerranée Infection, 19-21 boulevard Jean Moulin, 13005, Marseille, France
| | - P Gautret
- IHU-Méditerranée Infection, 19-21 boulevard Jean Moulin, 13005, Marseille, France
- Aix Marseille Univ., IRD, AP-HM, SSA, VITROME, Marseille, France
| | - A Stein
- IHU-Méditerranée Infection, 19-21 boulevard Jean Moulin, 13005, Marseille, France
- Aix Marseille Univ., IRD, AP-HM, MEPHI, Marseille, France
| | - P Brouqui
- IHU-Méditerranée Infection, 19-21 boulevard Jean Moulin, 13005, Marseille, France
- Aix Marseille Univ., IRD, AP-HM, MEPHI, Marseille, France
| | - P Parola
- IHU-Méditerranée Infection, 19-21 boulevard Jean Moulin, 13005, Marseille, France
- Aix Marseille Univ., IRD, AP-HM, SSA, VITROME, Marseille, France
| | - J-C Lagier
- IHU-Méditerranée Infection, 19-21 boulevard Jean Moulin, 13005, Marseille, France
- Aix Marseille Univ., IRD, AP-HM, MEPHI, Marseille, France
| | - D Raoult
- IHU-Méditerranée Infection, 19-21 boulevard Jean Moulin, 13005, Marseille, France
- Aix Marseille Univ., IRD, AP-HM, MEPHI, Marseille, France
| | - Michel Drancourt
- IHU-Méditerranée Infection, 19-21 boulevard Jean Moulin, 13005, Marseille, France.
- Aix Marseille Univ., IRD, AP-HM, MEPHI, Marseille, France.
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Guedj E, Campion JY, Dudouet P, Kaphan E, Bregeon F, Tissot-Dupont H, Guis S, Barthelemy F, Habert P, Ceccaldi M, Million M, Raoult D, Cammilleri S, Eldin C. 18F-FDG brain PET hypometabolism in patients with long COVID. Eur J Nucl Med Mol Imaging 2021; 48:2823-2833. [PMID: 33501506 PMCID: PMC7837643 DOI: 10.1007/s00259-021-05215-4] [Citation(s) in RCA: 232] [Impact Index Per Article: 77.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Accepted: 01/19/2021] [Indexed: 12/11/2022]
Abstract
PURPOSE In the context of the worldwide outbreak of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), some patients report functional complaints after apparent recovery from COVID-19. This clinical presentation has been referred as "long COVID." We here present a retrospective analysis of 18F-FDG brain PET of long COVID patients from the same center with a biologically confirmed diagnosis of SARS-CoV-2 infection and persistent functional complaints at least 3 weeks after the initial infection. METHODS PET scans of 35 patients with long COVID were compared using whole-brain voxel-based analysis to a local database of 44 healthy subjects controlled for age and sex to characterize cerebral hypometabolism. The individual relevance of this metabolic profile was evaluated to classify patients and healthy subjects. Finally, the PET abnormalities were exploratory compared with the patients' characteristics and functional complaints. RESULTS In comparison to healthy subjects, patients with long COVID exhibited bilateral hypometabolism in the bilateral rectal/orbital gyrus, including the olfactory gyrus; the right temporal lobe, including the amygdala and the hippocampus, extending to the right thalamus; the bilateral pons/medulla brainstem; the bilateral cerebellum (p-voxel < 0.001 uncorrected, p-cluster < 0.05 FWE-corrected). These metabolic clusters were highly discriminant to distinguish patients and healthy subjects (100% correct classification). These clusters of hypometabolism were significantly associated with more numerous functional complaints (brainstem and cerebellar clusters), and all associated with the occurrence of certain symptoms (hyposmia/anosmia, memory/cognitive impairment, pain and insomnia) (p < 0.05). In a more preliminary analysis, the metabolism of the frontal cluster which included the olfactory gyrus was worse in the 7 patients treated by ACE drugs for high blood pressure (p = 0.032), and better in the 3 patients that had used nasal decongestant spray at the infectious stage (p < 0.001). CONCLUSION This study demonstrates a profile of brain PET hypometabolism in long COVID patients with biologically confirmed SARS-CoV-2 and persistent functional complaints more than 3 weeks after the initial infection symptoms, involving the olfactory gyrus and connected limbic/paralimbic regions, extended to the brainstem and the cerebellum. These hypometabolisms are associated with patients' symptoms, with a biomarker value to identify and potentially follow these patients. The hypometabolism of the frontal cluster, which included the olfactory gyrus, seems to be linked to ACE drugs in patients with high blood pressure, with also a better metabolism of this olfactory region in patients using nasal decongestant spray, suggesting a possible role of ACE receptors as an olfactory gateway for this neurotropism.
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Affiliation(s)
- E Guedj
- APHM, CNRS, Centrale Marseille, Institut Fresnel, Timone Hospital, CERIMED, Nuclear Medicine Department, Aix-Marseille University, Marseille, France.
| | - J Y Campion
- APHM, CNRS, Centrale Marseille, Institut Fresnel, Timone Hospital, CERIMED, Nuclear Medicine Department, Aix-Marseille University, Marseille, France
| | - P Dudouet
- IHU-Méditerranée Infection, Marseille, France.,IRD, APHM, MEPHI, Aix-Marseille University, Marseille, France
| | - E Kaphan
- APHM, Service de Neurologie, Hôpital de la Timone, Marseille, France
| | - F Bregeon
- IHU-Méditerranée Infection, Marseille, France.,IRD, APHM, MEPHI, Aix-Marseille University, Marseille, France.,Service des Explorations Fonctionnelles Respiratoires, CHU Nord, APHM, Marseille, France
| | | | - S Guis
- Service de Rhumatologie, Hôpital de Sainte Marguerite, AP-HM, CNRS, CRMBM-CEMEREM, UMR CNRS 7339, Aix-Marseille Université, Marseille, France
| | - F Barthelemy
- APHM, CNRS, Centrale Marseille, Institut Fresnel, Timone Hospital, CERIMED, Nuclear Medicine Department, Aix-Marseille University, Marseille, France
| | - P Habert
- Radiology Department, La Timone Hospital, APHM, 264 Rue Saint Pierre, 13005, Marseille 05, France.,LIIE, Aix-Marseille University, Marseille, France
| | - M Ceccaldi
- INSERM, Inst Neurosci Syst, & APHM, Service de Neurologie et de Neuropsychologie, CHU Timone, Aix-Marseille University, Marseille, France
| | - M Million
- IHU-Méditerranée Infection, Marseille, France.,IRD, APHM, MEPHI, Aix-Marseille University, Marseille, France
| | - D Raoult
- IHU-Méditerranée Infection, Marseille, France.,IRD, APHM, MEPHI, Aix-Marseille University, Marseille, France
| | - S Cammilleri
- APHM, CNRS, Centrale Marseille, Institut Fresnel, Timone Hospital, CERIMED, Nuclear Medicine Department, Aix-Marseille University, Marseille, France
| | - C Eldin
- IHU-Méditerranée Infection, Marseille, France.,IRD, AP-HM, SSA, VITROME, Aix-Marseille University, Marseille, France
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Camara A, Konate S, Lo C, Kuete E, Sarr M, Amsrtong N, Niare S, Thera M, Fenollar F, Raoult D, Million M. Virgibacillus ihumii sp. nov., a new bacterium isolated from the stool of healthy African children. New Microbes New Infect 2020; 38:100790. [PMID: 33294190 PMCID: PMC7695897 DOI: 10.1016/j.nmni.2020.100790] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 10/13/2020] [Accepted: 10/13/2020] [Indexed: 11/30/2022] Open
Abstract
During a case–control study on severe acute malnutrition, strain Marseille-Q1233 was isolated. It is a Gram-positive, rod-shaped and halophilic bacillus isolated from a stool sample of Malian child under the age of 5. The fatty acid profile of the strain consisted of C15:0-anteiso and C14:0-iso as major components. Digital DNA-DNA hybridization and average nucleotide identity calculation showed 23.10% and 80.81% similarity respectively between strain Marseille-Q1233 and Virgibacillus siamensis strain Marseille-P2607, the phylogenetically closely related species with standing in nomenclature. On the basis of these results, we report the description of Virgibacillus ihumii sp. nov. strain Marseille-Q1233 as a new bacterial species.
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Affiliation(s)
- A. Camara
- Aix-Marseille Université, IRD, APHM, MEФI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
- Université des Sciences, des Techniques et des Technologies de Bamako, Bamako, Mali
| | - S. Konate
- Aix-Marseille Université, IRD, APHM, MEФI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
- Université des Sciences, des Techniques et des Technologies de Bamako, Bamako, Mali
| | - C.I. Lo
- IHU-Méditerranée Infection, Marseille, France
- Aix-Marseille Université, IRD, APHM, SSA, VITROME, Marseille, France
| | - E. Kuete
- Aix-Marseille Université, IRD, APHM, MEФI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - M. Sarr
- Aix-Marseille Université, IRD, APHM, MEФI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - N. Amsrtong
- Aix-Marseille Université, IRD, APHM, MEФI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - S. Niare
- Université des Sciences, des Techniques et des Technologies de Bamako, Bamako, Mali
| | - M.A. Thera
- Université des Sciences, des Techniques et des Technologies de Bamako, Bamako, Mali
| | - F. Fenollar
- IHU-Méditerranée Infection, Marseille, France
- Aix-Marseille Université, IRD, APHM, SSA, VITROME, Marseille, France
| | - D. Raoult
- Aix-Marseille Université, IRD, APHM, MEФI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - M. Million
- Aix-Marseille Université, IRD, APHM, MEФI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
- Corresponding author: M. Million, Institut Hospitalo-Universitaire Méditerranée-Infection, 19-21 Boulevard Jean Moulin, 13385, Marseille Cedex 05, France.
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8
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Million M, Gautret P, Colson P, Roussel Y, Dubourg G, Chabriere E, Honore S, Rolain JM, Fenollar F, Fournier PE, Lagier JC, Parola P, Brouqui P, Raoult D. Clinical efficacy of chloroquine derivatives in COVID-19 infection: comparative meta-analysis between the big data and the real world. New Microbes New Infect 2020; 38:100709. [PMID: 33088574 PMCID: PMC7558783 DOI: 10.1016/j.nmni.2020.100709] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [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: 05/08/2020] [Revised: 05/28/2020] [Accepted: 06/04/2020] [Indexed: 12/23/2022] Open
Abstract
In the context of the current coronavirus disease 2019 (COVID-19) pandemic, we conducted a meta-analysis on the effects of chloroquine derivatives in patients, based on unpublished and published reports available publicly on the internet as of 27 May 2020. The keywords 'hydroxychloroquine', 'chloroquine', 'coronavirus', 'COVID-19' and 'SARS-Cov-2' were used in the PubMed, Google Scholar and Google search engines without any restrictions as to date or language. Twenty studies were identified involving 105 040 patients (19 270 treated patients) from nine countries (Brazil, China, France, Iran, Saudi Arabia, South Korea, Spain and the USA). Big data observational studies were associated with conflict of interest, lack of treatment dosage and duration, and absence of favourable outcome. Clinical studies were associated with favourable outcomes and details on therapy. Among clinical studies, three of four randomized controlled trials reported a significant favourable effect. Among clinical studies, a significant favourable summary effect was observed for duration of cough (OR 0.19, p 0.00003), duration of fever (OR 0.11, p 0.039), clinical cure (OR 0.21, p 0.0495), death (OR 0.32, p 4.1 × 10-6) and viral shedding (OR 0.43, p 0.031). A trend for a favourable effect was noted for the outcome 'death and/or intensive care unit transfer' (OR 0.29, p 0.069) with a point estimate remarkably similar to that observed for death (∼0.3). In conclusion, a meta-analysis of publicly available clinical reports demonstrates that chloroquine derivatives are effective to improve clinical and virological outcomes, but, more importantly, they reduce mortality by a factor of 3 in patients with COVID-19. Big data are lacking basic treatment definitions and are linked to conflict of interest. The retraction of the only big data study associated with a significantly deleterious effect the day after (June 5, 2020) the acceptance of the present work (June 4, 2020) confirms the relevance of this work.
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Affiliation(s)
- M. Million
- IHU-Méditerranée Infection, Marseille, France
- Aix Marseille Université, IRD, AP-HM, MEPHI, Marseille, France
| | - P. Gautret
- IHU-Méditerranée Infection, Marseille, France
- Aix Marseille Université, IRD, AP-HM, SSA, VITROME, Marseille, France
| | - P. Colson
- IHU-Méditerranée Infection, Marseille, France
- Aix Marseille Université, IRD, AP-HM, MEPHI, Marseille, France
| | - Y. Roussel
- IHU-Méditerranée Infection, Marseille, France
- Aix Marseille Université, IRD, AP-HM, MEPHI, Marseille, France
| | - G. Dubourg
- IHU-Méditerranée Infection, Marseille, France
- Aix Marseille Université, IRD, AP-HM, MEPHI, Marseille, France
| | - E. Chabriere
- IHU-Méditerranée Infection, Marseille, France
- Aix Marseille Université, IRD, AP-HM, MEPHI, Marseille, France
| | - S. Honore
- Service de Pharmacie, Hôpital Timone, AP-HM, Marseille, France
- Laboratoire de Pharmacie Clinique, Aix Marseille Université, Marseille, France
| | - J.-M. Rolain
- IHU-Méditerranée Infection, Marseille, France
- Aix Marseille Université, IRD, AP-HM, MEPHI, Marseille, France
| | - F. Fenollar
- IHU-Méditerranée Infection, Marseille, France
- Aix Marseille Université, IRD, AP-HM, SSA, VITROME, Marseille, France
| | - P.-E. Fournier
- IHU-Méditerranée Infection, Marseille, France
- Aix Marseille Université, IRD, AP-HM, SSA, VITROME, Marseille, France
| | - J.-C. Lagier
- IHU-Méditerranée Infection, Marseille, France
- Aix Marseille Université, IRD, AP-HM, MEPHI, Marseille, France
| | - P. Parola
- IHU-Méditerranée Infection, Marseille, France
- Aix Marseille Université, IRD, AP-HM, SSA, VITROME, Marseille, France
| | - P. Brouqui
- IHU-Méditerranée Infection, Marseille, France
- Aix Marseille Université, IRD, AP-HM, MEPHI, Marseille, France
| | - D. Raoult
- IHU-Méditerranée Infection, Marseille, France
- Aix Marseille Université, IRD, AP-HM, MEPHI, Marseille, France
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9
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Konate S, Lo CI, Kuete E, Sarr M, Amsrtong N, Levasseur A, Caputo A, Thera MA, Raoult D, Million M. Halobacillus ihumii sp. nov., a new bacterium isolated from stool of healthy children living in Mali. New Microbes New Infect 2020; 37:100708. [PMID: 32793353 PMCID: PMC7408719 DOI: 10.1016/j.nmni.2020.100708] [Citation(s) in RCA: 1] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 06/02/2020] [Accepted: 06/04/2020] [Indexed: 12/02/2022] Open
Abstract
Strain Marseille-Q1234T is a new species from the genus Halobacillus that was isolated in 2019 from a stool sample in a healthy Malian child <5 years old. Cells are Gram-positive and strictly halophilic bacilli. Strain Marseille-Q1234T exhibits 98.46% 16S rRNA gene sequence similarity to Halobacillus naozhouensis strain JSM 071068T (NR_116505.1), the phylogenetically closely related species with standing in nomenclature. Based on the phenotypic and phylogenetic evidence, OrthoANI values and results of the biochemical tests, the new species is named Halobacillus ihumii sp. nov., for which strain Marseille-Q1234T (= CSURQ1234) is proposed as the type strain.
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Affiliation(s)
- S Konate
- Aix Marseille Université, IRD, AP-HM, MEФI, Marseille, France.,IHU-Méditerranée Infection, Marseille, France.,Aix Marseille Université, IRD, AP-HM, SSA, VITROME, Marseille, France
| | - C I Lo
- IHU-Méditerranée Infection, Marseille, France.,Université des Sciences, des Techniques et des Technologies de Bamako, Mali
| | - E Kuete
- Aix Marseille Université, IRD, AP-HM, MEФI, Marseille, France.,IHU-Méditerranée Infection, Marseille, France
| | - M Sarr
- Aix Marseille Université, IRD, AP-HM, MEФI, Marseille, France.,IHU-Méditerranée Infection, Marseille, France
| | - N Amsrtong
- Aix Marseille Université, IRD, AP-HM, MEФI, Marseille, France.,IHU-Méditerranée Infection, Marseille, France
| | - A Levasseur
- Aix Marseille Université, IRD, AP-HM, MEФI, Marseille, France.,IHU-Méditerranée Infection, Marseille, France
| | - A Caputo
- Aix Marseille Université, IRD, AP-HM, MEФI, Marseille, France.,IHU-Méditerranée Infection, Marseille, France
| | - M A Thera
- Aix Marseille Université, IRD, AP-HM, SSA, VITROME, Marseille, France
| | - D Raoult
- Aix Marseille Université, IRD, AP-HM, MEФI, Marseille, France.,IHU-Méditerranée Infection, Marseille, France
| | - M Million
- Aix Marseille Université, IRD, AP-HM, MEФI, Marseille, France.,IHU-Méditerranée Infection, Marseille, France
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10
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Sarr M, Lo C, Tall M, Fadlane A, Senghor B, Sokhna C, Raoult D, Million M, Fenollar F. Taxonogenomics description of Bacillus dakarensis sp. nov., Bacillus sinesaloumensis sp. nov. and Bacillus massiliogabonensis sp. nov., three new species isolated from human stools. New Microbes New Infect 2020; 37:100718. [PMID: 32983544 PMCID: PMC7491149 DOI: 10.1016/j.nmni.2020.100718] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [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: 01/10/2020] [Revised: 05/12/2020] [Accepted: 06/17/2020] [Indexed: 12/22/2022] Open
Abstract
Using microbial culturomics, three Bacillus strains were isolated, identified and characterized following the taxonogenomics strategy. Bacillus dakarensis strain Marseille-P3515T (=CSURP3515), Bacillus sinesaloumensis strain Marseille-P3516T (=CSURP3516), and Bacillus massiliogabonensis strain Marseille-P2639T (=CSURP2639) were isolated from human stool samples. The phylogenetic analysis, phenotypic characteristics and genotypic data presented here prove that these three bacteria are different from previously known bacterial species with standing in nomenclature and represent new Bacillus species.
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Affiliation(s)
- M. Sarr
- Aix Marseille Université, IRD, AP-HM, MEФI, Marseille, France
- Campus Commun UCAD-IRD of Hann, Dakar, Senegal
| | - C.I. Lo
- IHU-Méditerranée Infection, Marseille, France
- Aix Marseille Université, IRD, AP-HM, SSA, VITROME, Marseille, France
| | - M.L. Tall
- Aix Marseille Université, IRD, AP-HM, MEФI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - A. Fadlane
- Aix Marseille Université, IRD, AP-HM, MEФI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - B. Senghor
- Aix Marseille Université, IRD, AP-HM, MEФI, Marseille, France
- Campus Commun UCAD-IRD of Hann, Dakar, Senegal
| | - C. Sokhna
- Aix Marseille Université, IRD, AP-HM, MEФI, Marseille, France
- Campus Commun UCAD-IRD of Hann, Dakar, Senegal
| | - D. Raoult
- Aix Marseille Université, IRD, AP-HM, MEФI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - M. Million
- Aix Marseille Université, IRD, AP-HM, MEФI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - F. Fenollar
- IHU-Méditerranée Infection, Marseille, France
- Aix Marseille Université, IRD, AP-HM, SSA, VITROME, Marseille, France
- Corresponding author: F. Fenollar, Institut Hospitalo-Universitaire Méditerranée-Infection, 19–21 Boulevard Jean Moulin, 13385, Marseille cedex 05, France.
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11
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Guedj E, Million M, Dudouet P, Tissot-Dupont H, Bregeon F, Cammilleri S, Raoult D. 18F-FDG brain PET hypometabolism in post-SARS-CoV-2 infection: substrate for persistent/delayed disorders? Eur J Nucl Med Mol Imaging 2020; 48:592-595. [PMID: 32728799 PMCID: PMC7391029 DOI: 10.1007/s00259-020-04973-x] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [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: 06/22/2020] [Accepted: 07/23/2020] [Indexed: 02/06/2023]
Abstract
PURPOSE Several brain complications of SARS-CoV-2 infection have been reported. It has been moreover speculated that this neurotropism could potentially cause a delayed outbreak of neuropsychiatric and neurodegenerative diseases of neuroinflammatory origin. A propagation mechanism has been proposed across the cribriform plate of the ethmoid bone, from the nose to the olfactory epithelium, and possibly afterward to other limbic structures, and deeper parts of the brain including the brainstem. METHODS Review of clinical examination, and whole-brain voxel-based analysis of 18F-FDG PET metabolism in comparison with healthy subjects (p voxel < 0.001, p-cluster < 0.05, uncorrected), of two patients with confirmed diagnosis of SARS-CoV-2 explored at the post-viral stage of the disease. RESULTS Hypometabolism of the olfactory/rectus gyrus was found on the two patients, especially one with 4-week prolonged anosmia. Additional hypometabolisms were found within amygdala, hippocampus, parahippocampus, cingulate cortex, pre-/post-central gyrus, thalamus/hypothalamus, cerebellum, pons, and medulla in the other patient who complained of delayed onset of a painful syndrome. CONCLUSION These preliminary findings reinforce the hypotheses of SARS-CoV-2 neurotropism through the olfactory bulb and the possible extension of this impairment to other brain structures. 18F-FDG PET hypometabolism could constitute a cerebral quantitative biomarker of this involvement. Post-viral cohort studies are required to specify the exact relationship between such hypometabolisms and the possible persistent disorders, especially involving cognitive or emotion disturbances, residual respiratory symptoms, or painful complaints.
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Affiliation(s)
- E Guedj
- Nuclear Medicine Department, Aix Marseille University, APHM, CNRS, Centrale Marseille, Institut Fresnel, Timone Hospital, CERIMED, 264 rue Saint Pierre, 13005, Marseille, France.
| | - M Million
- IHU-Méditerranée Infection, Marseille, France.,Aix Marseille University, IRD, APHM, MEPHI, Marseille, France
| | - P Dudouet
- IHU-Méditerranée Infection, Marseille, France.,APHM, Marseille, France
| | | | - F Bregeon
- IHU-Méditerranée Infection, Marseille, France.,Aix Marseille University, IRD, APHM, MEPHI, Marseille, France.,Service des Explorations Fonctionnelles Respiratoires, Pôle Cardio-Vasculaire et Thoracique, CHU Nord, APHM, Marseille, France
| | - S Cammilleri
- Nuclear Medicine Department, Aix Marseille University, APHM, CNRS, Centrale Marseille, Institut Fresnel, Timone Hospital, CERIMED, 264 rue Saint Pierre, 13005, Marseille, France
| | - D Raoult
- IHU-Méditerranée Infection, Marseille, France.,Aix Marseille University, IRD, APHM, MEPHI, Marseille, France
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12
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Togo A, Diop A, Camara A, Kuete E, Konate S, Brevaut V, Des Robert C, Delerce J, Armstrong N, Roussel Y, Fournier PE, Thera M, Raoult D, Million M. Lactimicrobium massiliense gen. nov., sp. nov.; Anaerolactibacter massiliensis gen. nov., sp. nov.; Galactobacillus timonensis gen. nov., sp. nov. and Acidipropionibacterium timonense sp. nov. isolated from breast milk from healthy breastfeeding African women. New Microbes New Infect 2019; 29:100537. [PMID: 31011429 PMCID: PMC6462784 DOI: 10.1016/j.nmni.2019.100537] [Citation(s) in RCA: 2] [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: 02/22/2019] [Revised: 03/15/2019] [Accepted: 03/18/2019] [Indexed: 01/10/2023] Open
Abstract
Four strains isolated by microbial culturomics from breast milk of healthy mothers from Mali were not identified and characterized by taxono-genomics. This led us to propose the new genera and species Lactimicrobium massiliense, Anaerolactibacter massiliensis and Galactobacillus timonensis containing type strain Marseille-P4301T (CSUR P4301T), Marseille-P4302T (CSUR P4302T) and Marseille-P4641T (CSUR P4641T), respectively. The strain Marseille-P4482 represents a novel species, Acidipropionibacterium timonense, in a previously known genus with type strain being Marseille-P4482T (CSUR P4482T).
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Affiliation(s)
- A.H. Togo
- Aix Marseille Univ, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - A. Diop
- Aix Marseille Univ, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - A. Camara
- Aix Marseille Univ, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - E. Kuete
- Aix Marseille Univ, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - S. Konate
- Aix Marseille Univ, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - V. Brevaut
- APHM, CHU Hôpital Nord, Service de médecine néonatale, Marseille, France
| | - C. Des Robert
- APHM, CHU Hôpital de la Conception, Service de médecine néonatale, F-13385, Marseille, France
| | - J. Delerce
- Aix Marseille Univ, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - N. Armstrong
- Aix Marseille Univ, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - Y. Roussel
- Aix Marseille Univ, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - P.-E. Fournier
- Aix Marseille Univ, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - M.A. Thera
- Malaria Research and Training Center, Department of Epidemiology of Parasitic Diseases, FMOS-FAPH, University of Science, Techniques and Technologies, Bamako, Mali
| | - D. Raoult
- Aix Marseille Univ, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - M. Million
- Aix Marseille Univ, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
- Corresponding author: M. Million, Aix Marseille Université, Institut Hospitalier Universitaire Méditerranée-Infection, 19-21 Boulevard Jean Moulin, 13005, Marseille, France.
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13
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Larauche M, Moussaoui N, Biraud M, Bae W, Duboc H, Million M, Taché Y. Brain corticotropin-releasing factor signaling: Involvement in acute stress-induced visceral analgesia in male rats. Neurogastroenterol Motil 2019; 31:e13489. [PMID: 30298965 PMCID: PMC6347489 DOI: 10.1111/nmo.13489] [Citation(s) in RCA: 7] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 09/14/2018] [Accepted: 09/17/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND Water avoidance stress (WAS) induces a naloxone-independent visceral analgesia in male rats under non-invasive conditions of monitoring. The objective of the study was to examine the role of brain CRF signaling in acute stress-induced visceral analgesia (SIVA). METHODS Adult male Sprague-Dawley rats were chronically implanted with an intracerebroventricular (ICV) cannula. The visceromotor response (VMR) to graded phasic colorectal distension (CRD: 10, 20, 40, 60 mm Hg, 20 seconds, 4 minutes intervals) was monitored using manometry. The VMR to a first CRD (baseline) was recorded 5 minutes after an ICV saline injection, followed 1 hour later by ICV injection of either CRF (30, 100, or 300 ng and 1, 3, or 5 μg/rat) or saline and a second CRD, 5 minutes later. Receptor antagonists against CRF1 /CRF2 (astressin-B, 30 μg/rat), CRF2 (astressin2 -B, 10 μg/rat), oxytocin (tocinoic acid, 20 μg/rat), or vehicle were injected ICV 5 minutes before CRF (300 ng/rat, ICV) or 15 minutes before WAS (1 hour). KEY RESULTS ICV CRF (100 and 300 ng) reduced the VMR to CRD at 60 mm Hg by -36.6% ± 6.8% and -48.7% ± 11.7%, respectively, vs baseline (P < 0.001), while other doses had no effect and IP CRF (10 µg/kg) induced visceral hyperalgesia. Astressin-B and tocinoic acid injected ICV induced hyperalgesia and prevented the analgesic effect of ICV CRF (300 ng/rat) and WAS, while astressin2 -B only blocked WAS-induced SIVA. CONCLUSIONS & INFERENCES These data support a role for brain CRF signaling via CRF2 in SIVA in a model of WAS and CRD likely mediated by the activation of brain oxytocin pathway.
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Affiliation(s)
- M. Larauche
- Department of Medicine, UCLA, G Oppenheimer Center for
Neurobiology of Stress and Resilience and CURE: Digestive Diseases Research Center,
Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of
Medicine, Los Angeles, CA, United States,VA Greater Los Angeles Healthcare System, Los Angeles, CA,
United States
| | - N. Moussaoui
- Department of Medicine, UCLA, G Oppenheimer Center for
Neurobiology of Stress and Resilience and CURE: Digestive Diseases Research Center,
Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of
Medicine, Los Angeles, CA, United States,VA Greater Los Angeles Healthcare System, Los Angeles, CA,
United States,Present address: Inserm U1048/I2MC Obesity Research
Laboratory, 1 avenue Jean Poulhès BP 84225 31432 Toulouse Cedex 4,
France
| | - M. Biraud
- Department of Medicine, UCLA, G Oppenheimer Center for
Neurobiology of Stress and Resilience and CURE: Digestive Diseases Research Center,
Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of
Medicine, Los Angeles, CA, United States,VA Greater Los Angeles Healthcare System, Los Angeles, CA,
United States,Present address: 1060 William Moore drive CVM Main
Building, RM C305, Raleigh, NC 27607, USA
| | - W.K. Bae
- Department of Medicine, UCLA, G Oppenheimer Center for
Neurobiology of Stress and Resilience and CURE: Digestive Diseases Research Center,
Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of
Medicine, Los Angeles, CA, United States,VA Greater Los Angeles Healthcare System, Los Angeles, CA,
United States,Present address: Department of Internal Medicine, Ilsan
Paik Hospital, Inje University College of Medicine, Goyang, Korea
| | - H. Duboc
- Department of Medicine, UCLA, G Oppenheimer Center for
Neurobiology of Stress and Resilience and CURE: Digestive Diseases Research Center,
Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of
Medicine, Los Angeles, CA, United States,VA Greater Los Angeles Healthcare System, Los Angeles, CA,
United States,Present address: CRI INSERM UMR 1149, University Paris
Diderot, Sorbonne Paris Cité and DHU Unity, APHP, F-75890 Paris, France
| | - M. Million
- Department of Medicine, UCLA, G Oppenheimer Center for
Neurobiology of Stress and Resilience and CURE: Digestive Diseases Research Center,
Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of
Medicine, Los Angeles, CA, United States,VA Greater Los Angeles Healthcare System, Los Angeles, CA,
United States
| | - Y. Taché
- Department of Medicine, UCLA, G Oppenheimer Center for
Neurobiology of Stress and Resilience and CURE: Digestive Diseases Research Center,
Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of
Medicine, Los Angeles, CA, United States,VA Greater Los Angeles Healthcare System, Los Angeles, CA,
United States
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14
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Togo AH, Diop A, Dubourg G, Khelaifia S, Richez M, Armstrong N, Maraninchi M, Fournier PE, Raoult D, Million M. Anaerotruncus massiliensis sp. nov., a succinate-producing bacterium isolated from human stool from an obese patient after bariatric surgery. New Microbes New Infect 2019; 29:100508. [PMID: 30891246 PMCID: PMC6403417 DOI: 10.1016/j.nmni.2019.01.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 12/26/2018] [Accepted: 01/15/2019] [Indexed: 12/30/2022] Open
Abstract
A new bacterium, strain AT3T, was isolated by microbial culturomics from a faecal sample from a Frenchman after bariatric surgery. The isolate exhibited 96.6% 16S ribosomal RNA gene nucleotide sequence similarity with Anaerotruncus colihominis strain WAL 14565T = CCUG 45055T = CIP 107754T. Phenotypic and genomic characteristics showed that the new strain represents a novel species, for which the name Anaerotruncus massiliensis sp. nov. is proposed. The type strain is strain AT3T = CSUR P2007T = DSM 100567T.
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Affiliation(s)
- A H Togo
- IHU-Méditerranée Infection, Marseille, France.,Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France
| | - A Diop
- IHU-Méditerranée Infection, Marseille, France.,Aix Marseille Université, IRD, VITROME, France
| | - G Dubourg
- IHU-Méditerranée Infection, Marseille, France.,Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France
| | - S Khelaifia
- IHU-Méditerranée Infection, Marseille, France.,Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France
| | - M Richez
- IHU-Méditerranée Infection, Marseille, France.,Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France
| | - N Armstrong
- IHU-Méditerranée Infection, Marseille, France.,Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France
| | - M Maraninchi
- Aix-Marseille Université, NORT 'Nutrition, Obesity and Risk of Thrombosis,' INSERM1062, INRA1260, Marseille, France
| | | | - D Raoult
- IHU-Méditerranée Infection, Marseille, France.,Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France
| | - M Million
- IHU-Méditerranée Infection, Marseille, France.,Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France
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15
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Harrison J, Moreno B, Van Hoey O, Mihailescu LC, Vanhavere F, Million M, Fomenko V, Akselrod M. CHARACTERIZATION OF FLUORESCENT NUCLEAR TRACK DETECTORS AS CRITICALITY DOSIMETERS II. Radiat Prot Dosimetry 2018; 180:201-205. [PMID: 29069460 DOI: 10.1093/rpd/ncx236] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 10/06/2017] [Indexed: 06/07/2023]
Abstract
Fluorescent nuclear track detectors (FNTDs) as criticality dosimeters for both neutrons and gamma are further characterized in terms of angular dependence and quick dose assessment. The power spectrum integral depth profiles obtained from stacks of fluorescent images acquired within FNTDs exposed to a broad spectrum neutron field at various angles are analyzed to determine a calibration curve for angular dependence. MCNPX simulations were shown to be in good agreement with experimental results. A prototype triage reader was also designed and tested for quick assessment of dose. An unfolding technique incorporating both energy dependence and angular dependence is discussed. The advantages and shortcomings of using FNTDs in the event of a criticality excursion accident are analyzed.
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Affiliation(s)
- J Harrison
- Landauer, Crystal Growth Division, Stillwater, OK, USA
| | - B Moreno
- Landauer-Europe, Vélizy-Villacoublay, France
| | - O Van Hoey
- Belgian Nuclear Research Center SCK·CEN, Mol, Belgium
| | | | - F Vanhavere
- Belgian Nuclear Research Center SCK·CEN, Mol, Belgium
| | - M Million
- Landauer-Europe, Vélizy-Villacoublay, France
| | - V Fomenko
- Landauer, Crystal Growth Division, Stillwater, OK, USA
| | - M Akselrod
- Landauer, Crystal Growth Division, Stillwater, OK, USA
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16
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Yukihara EG, Akselrod MS, Fomenko V, Harrison J, Million M, Assenmacher F, Stabilini A, Meier K. COMPARISON BETWEEN PADC AND FNTD NEUTRON DETECTOR SYSTEMS IN BLIND TESTS. Radiat Prot Dosimetry 2018; 180:225-229. [PMID: 29036622 DOI: 10.1093/rpd/ncx171] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 08/18/2017] [Indexed: 06/07/2023]
Abstract
The objective of this study was to compare a neutron dosimetry system based on polyallyl diglycol carbonate (PADC) detectors with a new system based on Al2O3:C,Mg fluorescence nuclear track detectors (FNTD). The irradiations, performed as part of an intercomparison organized by the Physikalisch-Technische Bundesanstalt (PTB), Germany, were on a PMMA phantom with 252Cf or 241Am-Be source, usually with the phantom surface perpendicular to the radiation beam (0° angle), and with Hp(10) values between 0.3 and 7 mSv. One 252Cf irradiation was performed at 30° angle, and one with an additional 1 mSv gamma irradiation. The results showed an agreement between the two techniques with an average and maximum difference between PADCs and FNTDs of 1.5 and 22%, respectively, if one compares only cases of doses >1 mSv. For one of the irradiation conditions with dose of 0.9 mSv, use of the incorrect calibration factor for the FNTD (252Cf instead of 241Am-Be) led to reported values ~×2 larger than the given doses, due to low statistics in the determination of the ratio between 6Li-doped glass and polyethylene neutron converters. Although the FNTD track analysis algorithm may need further development, the results presented here demonstrate the feasibility of the FNTD technology and indicate areas requiring improvements.
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Affiliation(s)
- E G Yukihara
- Department of Radiation Safety and Security, Paul Scherrer Institute, Villigen PSI, Switzerland
- Physics Department, Oklahoma State University, Stillwater, OK, USA
| | - M S Akselrod
- Landauer Inc., Crystal Growth Division, 7231/2 Eastgate St., Stillwater, OK, USA
| | - V Fomenko
- Landauer Inc., Crystal Growth Division, 7231/2 Eastgate St., Stillwater, OK, USA
| | - J Harrison
- Landauer Inc., Crystal Growth Division, 7231/2 Eastgate St., Stillwater, OK, USA
| | - M Million
- Landauer Europe, 9 rue Paul Dautier CS, Vélizy-Villacoublay, France
| | - F Assenmacher
- Department of Radiation Safety and Security, Paul Scherrer Institute, Villigen PSI, Switzerland
| | - A Stabilini
- Department of Radiation Safety and Security, Paul Scherrer Institute, Villigen PSI, Switzerland
- Politecnico di Milano, Dipartimento di Energia, via la Masa 34, Milan, Italy
| | - K Meier
- Department of Radiation Safety and Security, Paul Scherrer Institute, Villigen PSI, Switzerland
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Meriglier E, Sunder A, Elsendoorn A, Canoui E, Rammaert B, Million M, Raoult D, Roblot F. Osteoarticular manifestations of Q fever: a case series and literature review. Clin Microbiol Infect 2018; 24:912-913. [DOI: 10.1016/j.cmi.2018.03.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 02/26/2018] [Accepted: 03/04/2018] [Indexed: 10/17/2022]
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18
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Fomenko V, Moreno B, Million M, Harrison J, Akselrod M. ENERGY RESPONSE OF FLUORESCENT NUCLEAR TRACK DETECTORS OF VARIOUS COLORATIONS TO MONOENERGETIC NEUTRONS. Radiat Prot Dosimetry 2018; 180:215-219. [PMID: 29077974 DOI: 10.1093/rpd/ncx232] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The neutron-energy dependence of the track-counting sensitivity of fluorescent nuclear track detectors (FNTDs) at two ranges of Mg doping, resulting in different crystal colorations, was investigated. The performance of FNTDs was studied with the following converters: Li-glass for thermal to intermediate-energy neutrons, polyethylene for fast neutrons, and polytetrafluoroethylene (Teflon™) for photon- and radon-background subtraction. The irradiations with monoenergetic neutrons were performed at the National Physics Laboratory (NPL), UK. The energy range was varied from 144 keV to 16.5 MeV in the personal dose equivalent range from 1 to 3 mSv. Monte Carlo simulations were performed to model the response of FNTDs to monoenergetic neutrons. A good agreement with the experimental data was observed suggesting the development of a basic model for future MC studies. Further work will focus on increasing FNTD sensitivity to low-energy neutrons and developing a faster imaging technique for scanning larger areas to improve counting statistics.
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Affiliation(s)
- V Fomenko
- Landauer, Crystal Growth Division, 723 ½ Eastgate Rd, Stillwater, OK, USA
| | - B Moreno
- Landauer-Europe, 9, rue Paul Dautier, CS 60731, Vélizy-Villacoublay Cedex, France
| | - M Million
- Landauer-Europe, 9, rue Paul Dautier, CS 60731, Vélizy-Villacoublay Cedex, France
| | - J Harrison
- Landauer, Crystal Growth Division, 723 ½ Eastgate Rd, Stillwater, OK, USA
| | - M Akselrod
- Landauer, Crystal Growth Division, 723 ½ Eastgate Rd, Stillwater, OK, USA
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Chartier M, Cassir N, Million M, Raoult D, Brouqui P, Saidani N, Eldin C, Lagier J. Efficacité comparée des traitements actuellement recommandés et analyse des facteurs de risque de récidive des épisodes de colite à Clostridium difficile. Med Mal Infect 2018. [DOI: 10.1016/j.medmal.2018.04.113] [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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20
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Togo AH, Camara A, Konaté S, Doumbo OK, Raoult D, Million M. ' Lactomassilus timonensis,' a new anaerobic bacterial species isolated from the milk of a healthy African mother. New Microbes New Infect 2017; 21:122-124. [PMID: 29321940 PMCID: PMC5755752 DOI: 10.1016/j.nmni.2017.12.004] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 12/01/2017] [Accepted: 12/07/2017] [Indexed: 12/22/2022] Open
Abstract
We here report the main characteristics of a new anaerobic bacterial genus and species ‘Lactomassilus timonensis,’ strain Marseille-P4641T (CSUR = P4641), isolated by microbial culturomics from the milk of a 35-year-old healthy lactating mother from Mali.
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Affiliation(s)
- A H Togo
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Marseille, France
| | - A Camara
- Malaria Research and Training Center, Department of Epidemiology of Parasitic Diseases, FMOS-FAPH, University of Science, Techniques and Technologies, Bamako, Mali
| | - S Konaté
- Malaria Research and Training Center, Department of Epidemiology of Parasitic Diseases, FMOS-FAPH, University of Science, Techniques and Technologies, Bamako, Mali
| | - O K Doumbo
- Malaria Research and Training Center, Department of Epidemiology of Parasitic Diseases, FMOS-FAPH, University of Science, Techniques and Technologies, Bamako, Mali
| | - D Raoult
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Marseille, France
| | - M Million
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Marseille, France
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21
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Ngom II, Mailhe M, Ricaboni D, Vitton V, Benezech A, Khelaifia S, Michelle C, Cadoret F, Armstrong N, Levasseur A, Raoult D, Million M. Noncontiguous finished genome sequence and description of Mediterranea massiliensis gen. nov., sp. nov., a new member of the Bacteroidaceae family isolated from human colon. New Microbes New Infect 2017; 21:105-116. [PMID: 29321938 PMCID: PMC5751998 DOI: 10.1016/j.nmni.2017.11.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 11/17/2017] [Accepted: 11/27/2017] [Indexed: 12/22/2022] Open
Abstract
Strain Marseille-P2645T was isolated in a colon sample from a Frenchwoman who underwent a colonoscopy. Bacterial cells were Gram negative, non–spore forming, mobile and strictly anaerobic. The genome of strain Marseille-P2645T is 3 950 441 bp long and contains 3374 protein-coding genes. The DNA G+C content is of 51.66 mol%. Strain Marseille-P2645T exhibited a 92.9% sequence similarity with Bacteroides helcogenes strain P36-108T (GenBank accession no. CP002352), the phylogenetically closest species with standing in nomenclature. Strain Marseille-P2645T (= CSUR P2645 = DSM 103034) is therefore a candidate as a type species of a new genus belonging to the Bacteroidaceae family, for which the name of Mediterranea massiliensis gen. nov., sp. nov., is proposed.
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Affiliation(s)
- I I Ngom
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, France
| | - M Mailhe
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, France
| | - D Ricaboni
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, France
| | - V Vitton
- Service de Gastroentérologie, Hôpital Nord, Assistance Publique-Hôpitaux de Marseille, Marseille, France
| | - A Benezech
- Service de Gastroentérologie, Hôpital Nord, Assistance Publique-Hôpitaux de Marseille, Marseille, France
| | - S Khelaifia
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, France
| | - C Michelle
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, France
| | - F Cadoret
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, France
| | - N Armstrong
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, France
| | - A Levasseur
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, France
| | - D Raoult
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, France
| | - M Million
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, France
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22
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Harrison J, Moreno B, Van Hoey O, Mihailescu LC, Vanhavere F, Million M, Fomenko V, Akselrod M. Characterization of fluorescent nuclear track detectors as criticality dosimeters. RADIAT MEAS 2017. [DOI: 10.1016/j.radmeas.2017.03.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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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23
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Pham TPT, Cadoret F, Tidjani Alou M, Brah S, Ali Diallo B, Diallo A, Sokhna C, Delerce J, Fournier PE, Million M, Raoult D. 'Marasmitruncus massiliensis' gen. nov., sp. nov., 'Clostridium culturomicum' sp. nov., 'Blautia provencensis' sp. nov., 'Bacillus caccae' sp. nov. and 'Ornithinibacillus massiliensis' sp. nov., isolated from stool samples of undernourished African children. New Microbes New Infect 2017; 19:38-42. [PMID: 28702201 PMCID: PMC5491483 DOI: 10.1016/j.nmni.2017.05.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 04/10/2017] [Revised: 04/27/2017] [Accepted: 05/09/2017] [Indexed: 12/22/2022] Open
Abstract
We report here the main characteristics of five new species, ‘Marasmitruncus massiliensis’ strain Marseille-P3646T (CSUR P3646), ‘Clostridium culturomicum’ strain Marseille-P3545T (CSUR P3545), ‘Blautia provencensis’ strain Marseille-P3502T (CSUR P3502), ‘Bacillus caccae’ strain Marseille-P3604T (CSUR P3604) and ‘Ornithinibacillus massiliensis’ strain Marseille-P3601T (CSUR P3601), which were isolated recently from undernourished children's stool samples from Niger using microbial culturomics.
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Affiliation(s)
- T-P-T Pham
- Aix-Marseille Université, URMITE, UM63, CNRS 7278, IRD 198, INSERM 1095, IHU Méditerranée Infection, Marseille, France
| | - F Cadoret
- Aix-Marseille Université, URMITE, UM63, CNRS 7278, IRD 198, INSERM 1095, IHU Méditerranée Infection, Marseille, France
| | - M Tidjani Alou
- Aix-Marseille Université, URMITE, UM63, CNRS 7278, IRD 198, INSERM 1095, IHU Méditerranée Infection, Marseille, France
| | - S Brah
- Service de médecine interne, Hôpital National de Niamey, France
| | - B Ali Diallo
- Laboratoire de Microbiologie, Département de Biologie, Université Abdou Moumouni de Niamey, Niamey, Niger
| | - A Diallo
- Institut de Recherche pour le Développement, UMR 198 (URMITE), Campus International de Hann, Dakar, Senegal
| | - C Sokhna
- Institut de Recherche pour le Développement, UMR 198 (URMITE), Campus International de Hann, Dakar, Senegal
| | - J Delerce
- Aix-Marseille Université, URMITE, UM63, CNRS 7278, IRD 198, INSERM 1095, IHU Méditerranée Infection, Marseille, France
| | - P-E Fournier
- Aix-Marseille Université, URMITE, UM63, CNRS 7278, IRD 198, INSERM 1095, IHU Méditerranée Infection, Marseille, France
| | - M Million
- Aix-Marseille Université, URMITE, UM63, CNRS 7278, IRD 198, INSERM 1095, IHU Méditerranée Infection, Marseille, France
| | - D Raoult
- Aix-Marseille Université, URMITE, UM63, CNRS 7278, IRD 198, INSERM 1095, IHU Méditerranée Infection, Marseille, France
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24
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Pham TPT, Cadoret F, Alou MT, Brah S, Diallo BA, Diallo A, Sokhna C, Delerce J, Fournier PE, Million M, Raoult D. 'Urmitella timonensis' gen. nov., sp. nov., 'Blautia marasmi' sp. nov., 'Lachnoclostridium pacaense' sp. nov., 'Bacillus marasmi' sp. nov. and 'Anaerotruncus rubiinfantis' sp. nov., isolated from stool samples of undernourished African children. New Microbes New Infect 2017; 17:84-88. [PMID: 28392924 PMCID: PMC5377003 DOI: 10.1016/j.nmni.2017.02.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [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: 12/29/2016] [Revised: 02/03/2017] [Accepted: 02/27/2017] [Indexed: 12/22/2022] Open
Abstract
We report here the main characteristics of five new species ‘Urmitella timonensis’ strain Marseille-P2918T (CSUR P2918), ‘Blautia marasmi’ strain Marseille-P2377T (CSUR P2377), ‘Lachnoclostridium pacaense’ strain Marseille-P3100T (CSUR P3100), ‘Bacillus marasmi’ strain Marseille-P3556T (CSUR P3556) and ‘Anaerotruncus rubiinfantis’ strain MT15T (CSUR P2276), which were isolated recently from stool samples taken from undernourished children in Niger and Senegal using microbial culturomics.
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Affiliation(s)
- T-P-T Pham
- Aix Marseille Université, URMITE, UM63, CNRS 7278, IRD 198, INSERM 1095, IHU-Méditerranée Infection, Marseille, France
| | - F Cadoret
- Aix Marseille Université, URMITE, UM63, CNRS 7278, IRD 198, INSERM 1095, IHU-Méditerranée Infection, Marseille, France
| | - M Tidjani Alou
- Aix Marseille Université, URMITE, UM63, CNRS 7278, IRD 198, INSERM 1095, IHU-Méditerranée Infection, Marseille, France
| | - S Brah
- Service de médecine interne, Hôpital National de Niamey, Niger
| | - B Ali Diallo
- Laboratoire de Microbiologie, Département de Biologie, Université Abdou Moumouni de Niamey, Niamey, Niger
| | - A Diallo
- Institut de Recherche pour le Développement, UMR 198 (URMITE), Campus International de Hann, IRD, BP 1386, CP, Dakar, Sénégal
| | - C Sokhna
- Institut de Recherche pour le Développement, UMR 198 (URMITE), Campus International de Hann, IRD, BP 1386, CP, Dakar, Sénégal
| | - J Delerce
- Aix Marseille Université, URMITE, UM63, CNRS 7278, IRD 198, INSERM 1095, IHU-Méditerranée Infection, Marseille, France
| | - P-E Fournier
- Aix Marseille Université, URMITE, UM63, CNRS 7278, IRD 198, INSERM 1095, IHU-Méditerranée Infection, Marseille, France
| | - M Million
- Aix Marseille Université, URMITE, UM63, CNRS 7278, IRD 198, INSERM 1095, IHU-Méditerranée Infection, Marseille, France
| | - D Raoult
- Aix Marseille Université, URMITE, UM63, CNRS 7278, IRD 198, INSERM 1095, IHU-Méditerranée Infection, Marseille, France
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Zaratzian C, Gouriet F, Tissot-Dupont H, Casalta JP, Million M, Bardin N, Grisoli D, Habib G, Raoult D. Antiphospholipid antibodies proposed in the diagnosis of infective endocarditis. Eur J Clin Microbiol Infect Dis 2017; 36:1159-1162. [DOI: 10.1007/s10096-017-2903-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 01/06/2017] [Indexed: 10/20/2022]
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26
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Afouda P, Ndongo S, Khelaifia S, Labas N, Cadoret F, Di Pinto F, Delerce J, Raoult D, Million M. Noncontiguous finished genome sequence and description of Prevotella phocaeensis sp. nov., a new anaerobic species isolated from human gut infected by Clostridium difficile. New Microbes New Infect 2016; 15:117-127. [PMID: 28070336 PMCID: PMC5219628 DOI: 10.1016/j.nmni.2016.12.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 10/28/2016] [Accepted: 12/08/2016] [Indexed: 12/19/2022] Open
Abstract
Prevotella phocaeensis sp. nov. strain SN19T (= DSM 103364) is a new species isolated from the gut microbiota of patient with colitis due to Clostridium difficile. Strain SN19T is Gram-negative rod-shaped bacteria, strictly anaerobic, nonmotile and non-endospore forming. The predominance fatty acid is hexadecanoic acid. Its 16S rRNA showed a 97.70% sequence identity with its phylogenetically closest species, Prevotella oralis. The genome is 2 922 117 bp long and contains 2486 predicted genes including 56 RNA genes.
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Affiliation(s)
- P Afouda
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, UM 63, CNRS 7278, IRD 198, INSERM 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Aix-Marseille Université, Marseille, France
| | - S Ndongo
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, UM 63, CNRS 7278, IRD 198, INSERM 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Aix-Marseille Université, Marseille, France
| | - S Khelaifia
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, UM 63, CNRS 7278, IRD 198, INSERM 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Aix-Marseille Université, Marseille, France
| | - N Labas
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, UM 63, CNRS 7278, IRD 198, INSERM 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Aix-Marseille Université, Marseille, France
| | - F Cadoret
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, UM 63, CNRS 7278, IRD 198, INSERM 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Aix-Marseille Université, Marseille, France
| | - F Di Pinto
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, UM 63, CNRS 7278, IRD 198, INSERM 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Aix-Marseille Université, Marseille, France
| | - J Delerce
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, UM 63, CNRS 7278, IRD 198, INSERM 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Aix-Marseille Université, Marseille, France
| | - D Raoult
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, UM 63, CNRS 7278, IRD 198, INSERM 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Aix-Marseille Université, Marseille, France; Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - M Million
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, UM 63, CNRS 7278, IRD 198, INSERM 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Aix-Marseille Université, Marseille, France
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27
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Mailhe M, Ricaboni D, Vitton V, Benezech A, Dubourg G, Michelle C, Andrieu C, Armstrong N, Bittar F, Fournier PE, Raoult D, Million M. Noncontiguous finished genome sequence and description of Fusobacterium massiliense sp. nov. isolated from human duodenum. New Microbes New Infect 2016; 16:3-12. [PMID: 28116104 PMCID: PMC5225283 DOI: 10.1016/j.nmni.2016.12.003] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 12/01/2016] [Indexed: 11/13/2022] Open
Abstract
The strain Marseille-P2749T (= CSUR P2749 = DSM 103085) was isolated as part of culturomics study from a liquid duodenum sample from a French man. Bacterial cells were Gram-negative bacilli, fusiform shaped and non–spore forming, and they grew in microaerophilic and anaerobic atmosphere. Its genome is 1 809 169 bp long and contains 1646 protein-coding genes. The DNA G+C content was 27.33 mol%. This strain exhibited a 95.9% sequence similarity with Fusobacterium periodonticum, the phylogenetically closest species with standing in nomenclature. Strain Marseille-P2749T is suggested to be a novel species belonging to the genus Fusobacterium, for which the name Fusobacterium massiliense sp. nov. is proposed.
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Affiliation(s)
- M Mailhe
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, INSERM 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Marseille, France
| | - D Ricaboni
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, INSERM 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Marseille, France; Département des sciences cliniques et biomédicales, Luigi Sacco, Division des Maladies Infectieuses III, Université de Milan, Milan, Italy
| | - V Vitton
- Service de Gastroentérologie, Hopital Nord, Assistance Publique-Hopitaux de Marseille, Marseille, France
| | - A Benezech
- Service de Gastroentérologie, Hopital Nord, Assistance Publique-Hopitaux de Marseille, Marseille, France
| | - G Dubourg
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, INSERM 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Marseille, France
| | - C Michelle
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, INSERM 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Marseille, France
| | - C Andrieu
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, INSERM 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Marseille, France
| | - N Armstrong
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, INSERM 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Marseille, France
| | - F Bittar
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, INSERM 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Marseille, France
| | - P-E Fournier
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, INSERM 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Marseille, France
| | - D Raoult
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, INSERM 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Marseille, France; Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - M Million
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, INSERM 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Marseille, France
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Ricaboni D, Mailhe M, Lagier JC, Michelle C, Armstrong N, Bittar F, Vitton V, Benezech A, Raoult D, Million M. Noncontiguous finished genome sequence and description of Streptococcus timonensis sp. nov. isolated from the human stomach. New Microbes New Infect 2016; 15:77-88. [PMID: 28050252 PMCID: PMC5192475 DOI: 10.1016/j.nmni.2016.11.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 09/23/2016] [Revised: 10/26/2016] [Accepted: 11/04/2016] [Indexed: 12/31/2022] Open
Abstract
Strain Marseille-P2915T, a Gram-positive, facultative anaerobic and nonmotile coccus, was isolated from the gastric lavage of a patient with severe anaemia. The 16S rRNA and rpoB gene comparison exhibited a sequence identity of 98.7 and 92.6% with Streptococcus infantis strain JCM 10157T, respectively, collocating it within the ‘Streptococcus mitis’ group. On the basis of phenotypic and genomic analysis, we propose the validation of the type strain Streptococcus timonensis sp. nov. Marseille-P2915T (= DSM 103349 = CSUR P2915).
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Affiliation(s)
- D Ricaboni
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, CNRS (UMR 7278), IRD (198), INSERM (U1095), AMU (UM63), Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Aix-Marseille Université, Marseille, France; Department of Biomedical and Clinical Sciences, 3rd Division of Clinical Infectious Disease, University of Milan, Luigi Sacco Hospital, Milan, Italy
| | - M Mailhe
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, CNRS (UMR 7278), IRD (198), INSERM (U1095), AMU (UM63), Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Aix-Marseille Université, Marseille, France
| | - J-C Lagier
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, CNRS (UMR 7278), IRD (198), INSERM (U1095), AMU (UM63), Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Aix-Marseille Université, Marseille, France
| | - C Michelle
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, CNRS (UMR 7278), IRD (198), INSERM (U1095), AMU (UM63), Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Aix-Marseille Université, Marseille, France
| | - N Armstrong
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, CNRS (UMR 7278), IRD (198), INSERM (U1095), AMU (UM63), Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Aix-Marseille Université, Marseille, France
| | - F Bittar
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, CNRS (UMR 7278), IRD (198), INSERM (U1095), AMU (UM63), Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Aix-Marseille Université, Marseille, France
| | - V Vitton
- Service de Gastroentérologie, Hôpital Nord, Assistance Publique-Hôpitaux de Marseille, Marseille, France
| | - A Benezech
- Service de Gastroentérologie, Hôpital Nord, Assistance Publique-Hôpitaux de Marseille, Marseille, France
| | - D Raoult
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, CNRS (UMR 7278), IRD (198), INSERM (U1095), AMU (UM63), Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Aix-Marseille Université, Marseille, France; Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdul Aziz University, Jeddah, Saudi Arabia
| | - M Million
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, CNRS (UMR 7278), IRD (198), INSERM (U1095), AMU (UM63), Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Aix-Marseille Université, Marseille, France
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Togo AH, Maraninchi M, Bittar F, Raoult D, Million M. "Ruminococcus phoceensis," a new species identified from human stool from an obese patient before bariatric surgery. New Microbes New Infect 2016; 14:67-68. [PMID: 27752323 PMCID: PMC5061075 DOI: 10.1016/j.nmni.2016.09.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [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] [Received: 07/22/2016] [Revised: 08/05/2016] [Accepted: 09/06/2016] [Indexed: 11/27/2022] Open
Abstract
We report here the main characteristics of a new bacterium species, "Ruminococcus phoceensis" strain AT10 (CSUR = P2086, DSM = 100837). This bacterium was isolated from the faeces of a 37-year-old woman from Marseille, France, with morbid obesity before bariatric surgery.
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Affiliation(s)
- A H Togo
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, France
| | - M Maraninchi
- Aix Marseille Université, NORT "Nutrition, Obesity and Risk of Thrombosis", INSERM1062, INRA1260, Marseille, France
| | - F Bittar
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, France
| | - D Raoult
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, France; Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - M Million
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, France
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Togo AH, Valero R, Delerce J, Raoult D, Million M. "Anaerotruncus massiliensis," a new species identified from human stool from an obese patient after bariatric surgery. New Microbes New Infect 2016; 14:56-57. [PMID: 27699051 PMCID: PMC5035336 DOI: 10.1016/j.nmni.2016.07.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [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: 07/21/2016] [Accepted: 07/27/2016] [Indexed: 11/30/2022] Open
Abstract
We report the main characteristics of a new bacterial species strain AT3T (CSUR = P2007, DSM = 100567) that was isolated from the stool sample collected from a 47-year-old obese French man after he underwent bariatric surgery.
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Affiliation(s)
- A H Togo
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, France
| | - R Valero
- Aix Marseille Université, NORT "Nutrition, Obesity and Risk of Thrombosis," Inserm 1062, INRA1260, France; APHM, CHU Hôpital de la Conception, Service Nutrition, Maladies Métaboliques et Endocrinologie, Marseille, France
| | - J Delerce
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, France
| | - D Raoult
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, France; Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - M Million
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, France
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Togo AH, Khelaifia S, Valero R, Cadoret F, Raoult D, Million M. 'Negativicoccus massiliensis', a new species identified from human stool from an obese patient after bariatric surgery. New Microbes New Infect 2016; 13:43-4. [PMID: 27408741 PMCID: PMC4930332 DOI: 10.1016/j.nmni.2016.05.018] [Citation(s) in RCA: 3] [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: 05/10/2016] [Revised: 05/24/2016] [Accepted: 05/30/2016] [Indexed: 12/01/2022] Open
Abstract
We report here the main characteristics of ‘Negativicoccus massiliensis’ strain AT7 (CSURP = P2082, DSM = 100853) isolated from a stool sample collected from a 47-year-old obese French man before bariatric surgery.
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Affiliation(s)
- A H Togo
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Marseille, France
| | - S Khelaifia
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Marseille, France
| | - R Valero
- Aix Marseille Université, NORT 'Nutrition, Obesity and Risk of Thrombosis', INSERM1062, INRA1260, Marseille, France; APHM, CHU Hôpital de la Conception, Service Nutrition, Maladies Métaboliques et Endocrinologie, Marseille, France
| | - F Cadoret
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Marseille, France
| | - D Raoult
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Marseille, France; Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - M Million
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Marseille, France
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Togo A, Khelaifia S, Bittar F, Maraninchi M, Raoult D, Million M. 'Eisenbergiella massiliensis', a new species isolated from human stool collected after bariatric surgery. New Microbes New Infect 2016; 13:15-6. [PMID: 27358742 PMCID: PMC4917486 DOI: 10.1016/j.nmni.2016.05.015] [Citation(s) in RCA: 16] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 05/24/2016] [Accepted: 05/26/2016] [Indexed: 12/05/2022] Open
Abstract
We report the principal characteristics of ‘Eisenbergiella massiliensis’ sp. nov. strain AT11 (CSURP = P2120, DSM = 101499) that was isolated from a stool sample collected after bariatric surgery of a 56-year-old obese French woman.
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Affiliation(s)
- A.H. Togo
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Marseille, France
| | - S. Khelaifia
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Marseille, France
| | - F. Bittar
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Marseille, France
| | - M. Maraninchi
- Aix Marseille Université, NORT ‘Nutrition, Obesity and Risk of Thrombosis’, INSERM1062, INRA1260, France
| | - D. Raoult
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Marseille, France
- Special Infectious Agents Unit, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah, Saudi Arabia
| | - M. Million
- Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Marseille, France
- Corresponding author: M. Million, Aix-Marseille Université, URMITE, UM63, CNRS7278, IRD198, Inserm 1095, Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, 27 Boulevard Jean Moulin, 13385, Marseille cedex 05, France
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Le Page S, Cimmino T, Togo A, Million M, Michelle C, Khelaifia S, Lagier JC, Raoult D, Rolain JM. Noncontiguous finished genome sequence and description of Enterococcus massiliensis sp. nov. New Microbes New Infect 2016; 12:90-5. [PMID: 27330820 PMCID: PMC4913184 DOI: 10.1016/j.nmni.2016.04.011] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 04/19/2016] [Accepted: 04/28/2016] [Indexed: 11/23/2022] Open
Abstract
Enterococcus massiliensis strain sp. nov. (= CSUR P1927 = DSM 100308) is a new species within the genus Enterococcus. This strain was first isolated from a fresh stool sample of a man during culturomics study of intestinal microflora. Enterococcus massiliensis is a Gram-positive cocci, facultative anaerobic and motile. E. massiliensis is negative for mannitol and positive for β-galactosidase, contrary to E. gallinarum. The complete genome sequence is 2 712 841 bp in length with a GC content of 39.6% and contains 2617 protein-coding genes and 70 RNA genes, including nine rRNA genes.
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Affiliation(s)
- S Le Page
- Aix-Marseille Université, URMITE UM 63 CNRS 7278 IRD 198 INSERM U1905, IHU Méditerranée Infection, Facultés de Médecine et de Pharmacie, Marseille, France
| | - T Cimmino
- Aix-Marseille Université, URMITE UM 63 CNRS 7278 IRD 198 INSERM U1905, IHU Méditerranée Infection, Facultés de Médecine et de Pharmacie, Marseille, France
| | - A Togo
- Aix-Marseille Université, URMITE UM 63 CNRS 7278 IRD 198 INSERM U1905, IHU Méditerranée Infection, Facultés de Médecine et de Pharmacie, Marseille, France
| | - M Million
- Aix-Marseille Université, URMITE UM 63 CNRS 7278 IRD 198 INSERM U1905, IHU Méditerranée Infection, Facultés de Médecine et de Pharmacie, Marseille, France
| | - C Michelle
- Aix-Marseille Université, URMITE UM 63 CNRS 7278 IRD 198 INSERM U1905, IHU Méditerranée Infection, Facultés de Médecine et de Pharmacie, Marseille, France
| | - S Khelaifia
- Aix-Marseille Université, URMITE UM 63 CNRS 7278 IRD 198 INSERM U1905, IHU Méditerranée Infection, Facultés de Médecine et de Pharmacie, Marseille, France
| | - J-C Lagier
- Aix-Marseille Université, URMITE UM 63 CNRS 7278 IRD 198 INSERM U1905, IHU Méditerranée Infection, Facultés de Médecine et de Pharmacie, Marseille, France
| | - D Raoult
- Aix-Marseille Université, URMITE UM 63 CNRS 7278 IRD 198 INSERM U1905, IHU Méditerranée Infection, Facultés de Médecine et de Pharmacie, Marseille, France
| | - J-M Rolain
- Aix-Marseille Université, URMITE UM 63 CNRS 7278 IRD 198 INSERM U1905, IHU Méditerranée Infection, Facultés de Médecine et de Pharmacie, Marseille, France
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Ricaboni D, Mailhe M, Khelaifia S, Raoult D, Million M. Romboutsia timonensis, a new species isolated from human gut. New Microbes New Infect 2016; 12:6-7. [PMID: 27200178 PMCID: PMC4864248 DOI: 10.1016/j.nmni.2016.04.001] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [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: 03/25/2016] [Revised: 03/31/2016] [Accepted: 04/05/2016] [Indexed: 12/21/2022] Open
Abstract
The exploration of the human microbiome was recently revolutionized by microbial culturomics and taxonogenomics. Thanks to this approach, we report here the main characteristics of Romboutsia timonensis strain Marseille-P326, a new bacterium isolated from the right human colon by colonoscopy in a 63-year-old French man with severe anaemia with melaena.
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Affiliation(s)
- D Ricaboni
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, CNRS (UMR 7278), IRD (198), INSERM (U1095), AMU (UM63), Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Aix-Marseille Université, Marseille, France; Department of Biomedical and Clinical Sciences, 3rd Division of Clinical Infectious Disease, University of Milan, Luigi Sacco Hospital, Milan, Italy
| | - M Mailhe
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, CNRS (UMR 7278), IRD (198), INSERM (U1095), AMU (UM63), Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Aix-Marseille Université, Marseille, France
| | - S Khelaifia
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, CNRS (UMR 7278), IRD (198), INSERM (U1095), AMU (UM63), Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Aix-Marseille Université, Marseille, France
| | - D Raoult
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, CNRS (UMR 7278), IRD (198), INSERM (U1095), AMU (UM63), Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Aix-Marseille Université, Marseille, France; Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - M Million
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, CNRS (UMR 7278), IRD (198), INSERM (U1095), AMU (UM63), Institut Hospitalo-Universitaire Méditerranée-Infection, Faculté de médecine, Aix-Marseille Université, Marseille, France
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Mourembou G, Traore SI, Rathored J, Khelaifia S, Lagier JC, Michelle C, Raoult D, Million M. Isolation of new species "Peptoniphilus phoceensis" from human gut. New Microbes New Infect 2016; 12:52-3. [PMID: 27222719 PMCID: PMC4872372 DOI: 10.1016/j.nmni.2016.04.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 03/23/2016] [Revised: 03/30/2016] [Accepted: 04/05/2016] [Indexed: 12/23/2022] Open
Abstract
Taxonogenomics coupled with culturomics leads to descriptions of new bacteria. Thanks to this strategy, we report the main characteristics of "Peptoniphilus phoceensis" strain SIT15, a new bacterium isolated from a stool sample of a 1-year-old healthy Senegalese boy.
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Affiliation(s)
- G Mourembou
- Aix Marseille Université, URMITE, UM63, CNRS 7278, IRD 198, INSERM 1095, Marseille, France; Ecole Doctorale Régionale d'Afrique Centrale, Franceville, Gabon
| | - S I Traore
- Aix Marseille Université, URMITE, UM63, CNRS 7278, IRD 198, INSERM 1095, Marseille, France
| | - J Rathored
- Aix Marseille Université, URMITE, UM63, CNRS 7278, IRD 198, INSERM 1095, Marseille, France
| | - S Khelaifia
- Aix Marseille Université, URMITE, UM63, CNRS 7278, IRD 198, INSERM 1095, Marseille, France
| | - J C Lagier
- Aix Marseille Université, URMITE, UM63, CNRS 7278, IRD 198, INSERM 1095, Marseille, France
| | - C Michelle
- Aix Marseille Université, URMITE, UM63, CNRS 7278, IRD 198, INSERM 1095, Marseille, France
| | - D Raoult
- Aix Marseille Université, URMITE, UM63, CNRS 7278, IRD 198, INSERM 1095, Marseille, France; Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - M Million
- Aix Marseille Université, URMITE, UM63, CNRS 7278, IRD 198, INSERM 1095, Marseille, France
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Lagier JC, Delord M, Million M, Parola P, Stein A, Brouqui P, Raoult D. Dramatic reduction in Clostridium difficile ribotype 027-associated mortality with early fecal transplantation by the nasogastric route: a preliminary report. Eur J Clin Microbiol Infect Dis 2015; 34:1597-601. [PMID: 25947205 DOI: 10.1007/s10096-015-2394-x] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 04/22/2015] [Indexed: 12/18/2022]
Abstract
Clostridium difficile ribotype 027 (CD027)-associated diarrhea preferentially affects elderly patients and causes a high mortality rate. Fecal microbiota transplantation has become an alternative treatment for recurrent C. difficile infections. An outbreak of CD027 infections has occurred in Marseille since March 2013. From March to November 2013, we treated patients using only antibiotics or fecal microbiota transplantation after at least three relapses. Beginning in November 2013, we performed early transplantation using a nasogastric tube during the first week of infection, in combination with antibiotic treatment. Sixty-one patients with a mean age of 84 years were hospitalized, including 42 patients treated only with antibiotics, three with tardive transplantation, and 16 with early transplantation. The patients were comparable in clinical involvement. The global mortality rate was 3/16 (18.75 %) among the patients treated by early transplantation and 29/45 (64.4 %) among the patients only treated by antibiotics or by tardive transplantation (p < 0.01). Among these 45 patients, 23 (51 %) died at day 31, including 17 who died at day 7. Early fecal transplantation was associated with a significantly reduced mortality rate, with only one patient dead at day 31 (6.25 %). In a Cox model, early transplantation was the only independent predictor of survival (hazard ratio 0.18, 95 % confidence interval 0.05-0.61, p = 0.006). Six of the 16 patients (37.5 %) needed a second transplantation before symptom resolution. Early fecal microbiota transplantation in combination with antibiotics should be the first-line treatment for CD027 infections.
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Affiliation(s)
- J-C Lagier
- Aix Marseille Université, URMITE, UM63, CNRS 7278, IRD 198, INSERM 1095, 13005, Marseille, France
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Lagier JC, Million M, Fournier PE, Brouqui P, Raoult D. Faecal microbiota transplantation for stool decolonization of OXA-48 carbapenemase-producing Klebsiella pneumoniae. J Hosp Infect 2015; 90:173-4. [PMID: 25913649 DOI: 10.1016/j.jhin.2015.02.013] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 02/16/2015] [Indexed: 01/25/2023]
Affiliation(s)
- J C Lagier
- Aix Marseille Université, Faculté de Médecine, Marseille, France; Assistance Publique Hôpitaux de Marseille, CHU Nord, Pôle Infectieux, Institut Hospitalo-Universitaire Méditerranée Infection, Marseille, France
| | - M Million
- Aix Marseille Université, Faculté de Médecine, Marseille, France; Assistance Publique Hôpitaux de Marseille, CHU Nord, Pôle Infectieux, Institut Hospitalo-Universitaire Méditerranée Infection, Marseille, France
| | - P E Fournier
- Aix Marseille Université, Faculté de Médecine, Marseille, France; Comité de Lutte contre les Infections Nosocomiales, Assistance Publique-Hôpitaux de Marseille, Marseille, France
| | - P Brouqui
- Aix Marseille Université, Faculté de Médecine, Marseille, France; Assistance Publique Hôpitaux de Marseille, CHU Nord, Pôle Infectieux, Institut Hospitalo-Universitaire Méditerranée Infection, Marseille, France
| | - D Raoult
- Aix Marseille Université, Faculté de Médecine, Marseille, France.
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D'amato F, Million M, Edouard S, Delerce J, Robert C, Marrie T, Raoult D. Draft genome sequence of Coxiella burnetii Dog Utad, a strain isolated from a dog-related outbreak of Q fever. New Microbes New Infect 2014; 2:136-7. [PMID: 25356361 PMCID: PMC4184585 DOI: 10.1002/nmi2.55] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Accepted: 05/19/2014] [Indexed: 11/09/2022] Open
Abstract
Coxiella burnetii Dog Utad, with a 2 008 938 bp genome is a strain isolated from a parturient dog responsible for a human familial outbreak of acute Q fever in Nova Scotia, Canada. Its genotype, determined by multispacer typing, is 21; the only one found in Canada that includes Q212, which causes endocarditis. Only 107 single nucleotide polymorphisms and 16 INDELs differed from Q212, suggesting a recent clonal radiation.
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Affiliation(s)
- F D'amato
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, UM63, CNRS 7278, IRD 198, INSERM 1095, Aix-Marseille Université Marseille, France
| | - M Million
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, UM63, CNRS 7278, IRD 198, INSERM 1095, Aix-Marseille Université Marseille, France
| | - S Edouard
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, UM63, CNRS 7278, IRD 198, INSERM 1095, Aix-Marseille Université Marseille, France
| | - J Delerce
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, UM63, CNRS 7278, IRD 198, INSERM 1095, Aix-Marseille Université Marseille, France
| | - C Robert
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, UM63, CNRS 7278, IRD 198, INSERM 1095, Aix-Marseille Université Marseille, France
| | - T Marrie
- Faculty of Medicine, Dalhousie University Halifax, Nova Scotia, Canada
| | - D Raoult
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, UM63, CNRS 7278, IRD 198, INSERM 1095, Aix-Marseille Université Marseille, France
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Walter G, Vernier M, Million M, Seng P, Stein A. COL08-02 : Infections ostéo-articulaires à germes anaérobies : séries de 61 cas. Med Mal Infect 2014. [DOI: 10.1016/s0399-077x(14)70075-7] [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: 10/25/2022]
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Lagier JC, Delord M, Million M, Raoult D, Parola P, Brouqui P. O-08: Greffe de microbiote digestif précoce dans une épidémie de colite à Clostridium difficile ribotype 027. Med Mal Infect 2014. [DOI: 10.1016/s0399-077x(14)70287-2] [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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Mediannikov O, Socolovschi C, Million M, Fenollar F, Bassene H, Diatta G, Sokhna C, Raoult D. Molecular identification of pathogenic bacteria in eschars from acute febrile patients, Senegal. Int J Infect Dis 2014. [DOI: 10.1016/j.ijid.2014.03.1111] [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: 10/25/2022] Open
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Walter G, Vernier M, Pinelli PO, Million M, Coulange M, Seng P, Stein A. Bone and joint infections due to anaerobic bacteria: an analysis of 61 cases and review of the literature. Eur J Clin Microbiol Infect Dis 2014; 33:1355-64. [DOI: 10.1007/s10096-014-2073-3] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Accepted: 01/28/2014] [Indexed: 11/30/2022]
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Fournier PE, Levy PY, Million M, Croce O, Blanc-Tailleur C, Brouqui P, Raoult D. Genome of a chronic osteitis-causing Clostridium tetani. New Microbes New Infect 2014; 2:25-6. [PMID: 25356334 PMCID: PMC4184619 DOI: 10.1002/2052-2975.27] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [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: 10/22/2013] [Revised: 11/20/2013] [Accepted: 11/22/2013] [Indexed: 11/11/2022] Open
Abstract
We sequenced the genome of a Clostridium tetani strain that caused chronic tibial osteitis without any clinical sign of tetanus in a 26-year-old man previously vaccinated against this disease. The genome contained a plasmid that harboured the tetX-tetR tetanospasmin operon, and was highly similar to that of a tetanus-causing strain.
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Affiliation(s)
- P-E Fournier
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, UM 63, CNRS 7278, IRD 198, INSERM U1095, Institut Hospitalo-Universitaire Méditerranée Infection, Faculté de Médecine, Aix-Marseille Université 27 Boulevard Jean Moulin, 13005, Marseille, France ; Fédération de Microbiologie, Centre Hospitalier Universitaire de La Timone 264 Rue Saint Pierre, 13005, Marseille, France
| | - P-Y Levy
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, UM 63, CNRS 7278, IRD 198, INSERM U1095, Institut Hospitalo-Universitaire Méditerranée Infection, Faculté de Médecine, Aix-Marseille Université 27 Boulevard Jean Moulin, 13005, Marseille, France ; Fédération de Microbiologie, Centre Hospitalier Universitaire de La Timone 264 Rue Saint Pierre, 13005, Marseille, France
| | - M Million
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, UM 63, CNRS 7278, IRD 198, INSERM U1095, Institut Hospitalo-Universitaire Méditerranée Infection, Faculté de Médecine, Aix-Marseille Université 27 Boulevard Jean Moulin, 13005, Marseille, France ; Service de Maladies Infectieuses, Hôpital Nord AP-HM, Chemin des Bourrely, 13013, Marseille, France
| | - O Croce
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, UM 63, CNRS 7278, IRD 198, INSERM U1095, Institut Hospitalo-Universitaire Méditerranée Infection, Faculté de Médecine, Aix-Marseille Université 27 Boulevard Jean Moulin, 13005, Marseille, France
| | - C Blanc-Tailleur
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, UM 63, CNRS 7278, IRD 198, INSERM U1095, Institut Hospitalo-Universitaire Méditerranée Infection, Faculté de Médecine, Aix-Marseille Université 27 Boulevard Jean Moulin, 13005, Marseille, France
| | - P Brouqui
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, UM 63, CNRS 7278, IRD 198, INSERM U1095, Institut Hospitalo-Universitaire Méditerranée Infection, Faculté de Médecine, Aix-Marseille Université 27 Boulevard Jean Moulin, 13005, Marseille, France ; Service de Maladies Infectieuses, Hôpital Nord AP-HM, Chemin des Bourrely, 13013, Marseille, France
| | - D Raoult
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, UM 63, CNRS 7278, IRD 198, INSERM U1095, Institut Hospitalo-Universitaire Méditerranée Infection, Faculté de Médecine, Aix-Marseille Université 27 Boulevard Jean Moulin, 13005, Marseille, France ; Fédération de Microbiologie, Centre Hospitalier Universitaire de La Timone 264 Rue Saint Pierre, 13005, Marseille, France
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Vernier M, Million M, Laugier D, Le Treut T, Brouqui P, Botelho-Nevers E. Macrophage activation syndrome associated with co-trimoxazole. Med Mal Infect 2013; 43:128-30. [PMID: 23537744 DOI: 10.1016/j.medmal.2013.02.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Revised: 02/20/2013] [Accepted: 02/20/2013] [Indexed: 11/18/2022]
Affiliation(s)
- M Vernier
- Faculté de Médecine, Université Aix-Marseille, Institut Hospitalo-Universitaire Méditerranée Infection, 27 Boulevard Jean-Moulin, 13385 Marseille Cedex 5, France
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Million M, Angelakis E, Maraninchi M, Henry M, Giorgi R, Valero R, Vialettes B, Raoult D. Correlation between body mass index and gut concentrations of Lactobacillus reuteri, Bifidobacterium animalis, Methanobrevibacter smithii and Escherichia coli. Int J Obes (Lond) 2013. [PMID: 23459324 DOI: 10.1038/ijo.2013.20ijo201320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Genus and species level analysis is the best way to characterize alterations in the human gut microbiota that are associated with obesity, because the clustering of obese and lean microbiotas increases with the taxonomic depth of the analysis. Bifidobacterium genus members have been associated with a lean status, whereas different Lactobacillus species are associated both with a lean and an obese status. OBJECTIVES AND METHODS We analyzed the fecal concentrations of Bacteroidetes, Firmicutes, Methanobrevibacter smithii, the genus Lactobacillus, five other Lactobacillus species previously linked with lean or obese populations, Escherichia coli and Bifidobacterium animalis in 263 individuals, including 134 obese, 38 overweight, 76 lean and 15 anorexic subjects to test for the correlation between bacterial concentration and body mass index (BMI). Of these subjects, 137 were used in our previous study. FINDINGS Firmicutes were found in >98.5%, Bacteroidetes in 67%, M. smithii in 64%, E. coli in 51%, Lactobacillus species between 17 and 25% and B. animalis in 11% of individuals. The fecal concentration of Lactobacillus reuteri was positively correlated with BMI (coefficient=0.85; 95% confidence interval (CI) 0.12-0.58; P=0.02) in agreement with what was reported for Lactobacillus sakei. As reported, B. animalis (coefficient=-0.84; 95% CI -1.61 to -0.07; P=0.03) and M. smithii (coefficient=-0.43, 95% CI -0.90 to 0.05; P=0.08) were negatively associated with the BMI. Unexpectedly, E. coli was found here for the first time to negatively correlate with the BMI (coefficient=-1.05; 95% CI -1.60 to -0.50; P<0.001). CONCLUSION Our findings confirm the specificity of the obese microbiota and emphasize the correlation between the concentration of certain Lactobacillus species and obesity.
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Affiliation(s)
- M Million
- 1] URMITE, UM63, CNRS 7278, IRD 198, Inserm 1095, Aix Marseille Université, Marseille, France [2] APHM, CHU Timone, Pôle Infectieux, Marseille, France
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Abstract
Although probiotics and antibiotics have been used for decades as growth promoters in animals, attention has only recently been drawn to the association between the gut microbiota composition, its manipulation, and obesity. Studies in mice have associated the phylum Firmicutes with obesity and the phylum Bacteroidetes with weight loss. Proposed mechanisms linking the microbiota to fat content and weight include differential effects of bacteria on the efficiency of energy extraction from the diet, and changes in host metabolism of absorbed calories. The independent effect of the microbiota on fat accumulation has been demonstrated in mice, where transplantation of microbiota from obese mice or mice fed western diets to lean or germ-free mice produced fat accumulation among recipients. The microbiota can be manipulated by prebiotics, probiotics, and antibiotics. Probiotics affect the microbiota directly by modulating its bacterial content, and indirectly through bacteriocins produced by the probiotic bacteria. Interestingly, certain probiotics are associated with weight gain both in animals and in humans. The effects are dependent on the probiotic strain, the host, and specific host characteristics, such as age and baseline nutritional status. Attention has recently been drawn to the association between antibiotic use and weight gain in children and adults. We herein review the studies describing the associations between the microbiota composition, its manipulation, and obesity.
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Affiliation(s)
- M Million
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, Faculté de Médecine, CNRS UMR 7278, IRD 198, Aix-Marseille Université, Marseille, France
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Lagier JC, Armougom F, Million M, Hugon P, Pagnier I, Robert C, Bittar F, Fournous G, Gimenez G, Maraninchi M, Trape JF, Koonin EV, La Scola B, Raoult D. Microbial culturomics: paradigm shift in the human gut microbiome study. Clin Microbiol Infect 2012; 18:1185-93. [PMID: 23033984 DOI: 10.1111/1469-0691.12023] [Citation(s) in RCA: 733] [Impact Index Per Article: 61.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Comprehensive determination of the microbial composition of the gut microbiota and the relationships with health and disease are major challenges in the 21st century. Metagenomic analysis of the human gut microbiota detects mostly uncultured bacteria. We studied stools from two lean Africans and one obese European, using 212 different culture conditions (microbial culturomics), and tested the colonies by using mass spectrometry and 16S rRNA amplification and sequencing. In parallel, we analysed the same three samples by pyrosequencing 16S rRNA amplicons targeting the V6 region. The 32 500 colonies obtained by culturomics have yielded 340 species of bacteria from seven phyla and 117 genera, including two species from rare phyla (Deinococcus-Thermus and Synergistetes, five fungi, and a giant virus (Senegalvirus). The microbiome identified by culturomics included 174 species never described previously in the human gut, including 31 new species and genera for which the genomes were sequenced, generating c. 10 000 new unknown genes (ORFans), which will help in future molecular studies. Among these, the new species Microvirga massiliensis has the largest bacterial genome so far obtained from a human, and Senegalvirus is the largest virus reported in the human gut. Concurrent metagenomic analysis of the same samples produced 698 phylotypes, including 282 known species, 51 of which overlapped with the microbiome identified by culturomics. Thus, culturomics complements metagenomics by overcoming the depth bias inherent in metagenomic approaches.
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Affiliation(s)
- J-C Lagier
- Aix Marseille Université, URMITE, UM63, CNRS 7278, IRD 198, INSERM 1095, Marseille, France
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Angelakis E, Million M, D'Amato F, Rouli L, Richet H, Stein A, Rolain JM, Raoult D. Q fever and pregnancy: disease, prevention, and strain specificity. Eur J Clin Microbiol Infect Dis 2012; 32:361-8. [PMID: 23052984 DOI: 10.1007/s10096-012-1750-3] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2012] [Accepted: 09/05/2012] [Indexed: 11/29/2022]
Abstract
The link between fetal morbidity and Q fever and the necessity of long-term antibiotics for Coxiella burnetii infection during pregnancy have been recently questioned in the Netherlands, where the clone responsible for the Q fever outbreak harbors the QpH1 plasmid. In this context, we assessed pregnancy outcomes according to antibiotic administration in a new series and compared the plasmid type between isolates associated with abortion and other clinical isolates to determine if there is a link between genotype and abortion in humans. All French patients who received a diagnosis of Q fever during pregnancy at the French National Referral Centre for Q Fever from 2006 through July 2011 were included. On the other hand, the plasmid types of 160 clinical isolates, including seven isolates from patients who experienced an abortion, were compared. The differences between the QpDV and QpH1 plasmid sequences were analyzed. Acute Q fever was a cause of fetal morbidity, and the absence of long-term cotrimoxazole therapy was associated with fetal death (p < 0.0001). Genotypic analysis showed that the QpDV plasmid was more frequent in isolates associated with abortion (p = 0.03). A comparison of the plasmid sequences revealed that four QpDV proteins had no direct counterparts in QpH1, with two whose functions were not present in QpH1. The different obstetrical morbidity of C. burnetii relative to different geographical areas could be related to strain specificity, possibly based on differences in plasmid sequences, or to a failure of public health authorities to detect early miscarriages.
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Affiliation(s)
- E Angelakis
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, Faculté de Médecine, CNRS UMR 7278, IRD 198, Aix-Marseille Université, 27 Bd. Jean Moulin, 13005 Marseille, France
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