Détection par CG-SM de l'acide tuberculostéarique dans le L.C.R. d'un malade atteint de méningite tuberculeuse
La chromatographie en phase gazeuse, couplée à la spectrométrie de masse utilisant la détection par sélection d'ions, a permis de mettre en évidence l'acide tuberculostéarique (ou 10-méthyloctadécanoïque), constituant caractéristique des mycobactéries. L'ionisation par impact électron...
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Published in | Médecine et maladies infectieuses Vol. 15; no. 10; pp. 601 - 603 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | French |
Published |
Paris
Elsevier SAS
01.10.1985
Elsevier |
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Abstract | La chromatographie en phase gazeuse, couplée à la spectrométrie de masse utilisant la détection par sélection d'ions, a permis de mettre en évidence l'acide tuberculostéarique (ou 10-méthyloctadécanoïque), constituant caractéristique des mycobactéries. L'ionisation par impact électronique est une méthode suffisante pour la détection de cet acide dans les cultures de
M. tuberculosis. Dans les expectorations ou le L.C.R., pour augmenter la sensibilité de la détection, nous avons essayé l'ionisation chimique. Par cette technique, nous avons pu rétrospectivement mettre en évidence cet acide dans le premier prélèvement de L.C.R. d'un enfant suspecté de méningite tuberculeuse où les examens directs de bactériologie étaient restés négatifs.
Gas chromatography — mass spectrometry (GC-MS) and selected ion monitoring (SIM) was used to detect 10-methyloctadecanoïc (tubercustearic) acid, a charactéristic constituent of mycobacteria. When using electron ionization (EI), this fatty acid could be detected in culture media of M. tuberculosis. To increase the sensitivity of detection in sputum or CSF samples, we have tested the chemical ionization (CI). By this technique (CI-SIM), the presence of tuberculostearic acid was retropectively demonstrated in a CSF sample collected before treatment. This patient was suspected of having a tuberculous meningitis. Futhermore, no acid-fast bacilli was detected on smears. |
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AbstractList | La chromatographie en phase gazeuse, couplée à la spectrométrie de masse utilisant la détection par sélection d'ions, a permis de mettre en évidence l'acide tuberculostéarique (ou 10-méthyloctadécanoïque), constituant caractéristique des mycobactéries. L'ionisation par impact électronique est une méthode suffisante pour la détection de cet acide dans les cultures de
M. tuberculosis. Dans les expectorations ou le L.C.R., pour augmenter la sensibilité de la détection, nous avons essayé l'ionisation chimique. Par cette technique, nous avons pu rétrospectivement mettre en évidence cet acide dans le premier prélèvement de L.C.R. d'un enfant suspecté de méningite tuberculeuse où les examens directs de bactériologie étaient restés négatifs.
Gas chromatography — mass spectrometry (GC-MS) and selected ion monitoring (SIM) was used to detect 10-methyloctadecanoïc (tubercustearic) acid, a charactéristic constituent of mycobacteria. When using electron ionization (EI), this fatty acid could be detected in culture media of M. tuberculosis. To increase the sensitivity of detection in sputum or CSF samples, we have tested the chemical ionization (CI). By this technique (CI-SIM), the presence of tuberculostearic acid was retropectively demonstrated in a CSF sample collected before treatment. This patient was suspected of having a tuberculous meningitis. Futhermore, no acid-fast bacilli was detected on smears. |
Author | Jean, D. Ducros, V. Rouhan, D. Le Noc, P. Decoux, G. Favier, A. Duborgel, S. |
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Cites_doi | 10.1016/S0378-4347(00)81468-1 10.1016/S0378-4347(00)81490-5 10.1016/S0140-6736(83)91676-8 10.1172/JCI109380 |
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DocumentTitleAlternate | Detection of tuberculostearic acid in C.S.F. from a patient with tuberculous meningitis by G.C./M.S |
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Keywords | Spectrométrie de masse Meningitis Méningite Mycobacterium tuberculosis Mass spectrometry Biochimie Bactériose Liquide céphalorachidien Diagnostic Mycobactériose Tuberculose Chromatographie phase gazeuse Infection Homme Mycobacteriales Mycobacteriaceae Système nerveux pathologie Tuberculostéarique acide Actinomycetes Bactérie Spectrométrie masse |
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References | Odham, Larsson, Mardh (bib5) 1979; 63 Larsson, Mardh, Odham (bib1) 1979; 163 Larsson, Mardh, Odham, Westerdahl (bib3) 1981; 89 Mardh, Larsson, Hoiby, Engbaek, Odham (bib4) 1983; 1 Larsson, Mardh, Odham, Westerdahl (bib2) 1980; 182 Larsson (10.1016/S0399-077X(85)80021-4_bib2) 1980; 182 Odham (10.1016/S0399-077X(85)80021-4_bib5) 1979; 63 Mardh (10.1016/S0399-077X(85)80021-4_bib4) 1983; 1 Larsson (10.1016/S0399-077X(85)80021-4_bib3) 1981; 89 Larsson (10.1016/S0399-077X(85)80021-4_bib1) 1979; 163 |
References_xml | – volume: 63 start-page: 813 year: 1979 end-page: 819 ident: bib5 article-title: Demonstration of tuberculostearic acid in sputum from patients with pulmonary tuberculosis by selected ion monitoring publication-title: J. Clin. Invest. contributor: fullname: Mardh – volume: 163 start-page: 221 year: 1979 end-page: 224 ident: bib1 article-title: Detection of tuberculostearic acid in mycobacteria and nocardiase by gas chromatography and mass spectrometry using selected ion monitoring publication-title: J. Chromatogr. contributor: fullname: Odham – volume: 89 start-page: 245 year: 1981 end-page: 251 ident: bib3 article-title: Use of selected ion monitoring for detection of tuberculostearic and C publication-title: Acta. Path. Microbiol. Scand. contributor: fullname: Westerdahl – volume: 182 start-page: 402 year: 1980 end-page: 408 ident: bib2 article-title: Detection of tuberculostearic acid in biological specimens by means of glass capillary gaz chromatography — electron and chemical ionition mass spectrometry, utilizing selected ion monitoring publication-title: J. Chromatogr. contributor: fullname: Westerdahl – volume: 1 start-page: 367 year: 1983 ident: bib4 article-title: Tuberculostearic acid as a diagnostic marker in tuberculous meningitis publication-title: The Lancet contributor: fullname: Odham – volume: 89 start-page: 245 year: 1981 ident: 10.1016/S0399-077X(85)80021-4_bib3 article-title: Use of selected ion monitoring for detection of tuberculostearic and C32 mycocerosic acid in mycobacteria and in five-day-old cultures of sputum specimens from patients with pulmonary tuberculosis publication-title: Acta. Path. Microbiol. Scand. contributor: fullname: Larsson – volume: 163 start-page: 221 year: 1979 ident: 10.1016/S0399-077X(85)80021-4_bib1 article-title: Detection of tuberculostearic acid in mycobacteria and nocardiase by gas chromatography and mass spectrometry using selected ion monitoring publication-title: J. Chromatogr. doi: 10.1016/S0378-4347(00)81468-1 contributor: fullname: Larsson – volume: 182 start-page: 402 year: 1980 ident: 10.1016/S0399-077X(85)80021-4_bib2 article-title: Detection of tuberculostearic acid in biological specimens by means of glass capillary gaz chromatography — electron and chemical ionition mass spectrometry, utilizing selected ion monitoring publication-title: J. Chromatogr. doi: 10.1016/S0378-4347(00)81490-5 contributor: fullname: Larsson – volume: 1 start-page: 367 issue: 8320 year: 1983 ident: 10.1016/S0399-077X(85)80021-4_bib4 article-title: Tuberculostearic acid as a diagnostic marker in tuberculous meningitis publication-title: The Lancet doi: 10.1016/S0140-6736(83)91676-8 contributor: fullname: Mardh – volume: 63 start-page: 813 year: 1979 ident: 10.1016/S0399-077X(85)80021-4_bib5 article-title: Demonstration of tuberculostearic acid in sputum from patients with pulmonary tuberculosis by selected ion monitoring publication-title: J. Clin. Invest. doi: 10.1172/JCI109380 contributor: fullname: Odham |
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SubjectTerms | Bactérioses Bactérioses humaines Mass spectrometry Meningitis Mycobacterium tuberculosis Méningite Pathologie infectieuse Sciences biologiques et medicales Sciences medicales Spectrométrie de masse Tuberculose et mycobactérioses atypiques |
Title | Détection par CG-SM de l'acide tuberculostéarique dans le L.C.R. d'un malade atteint de méningite tuberculeuse |
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