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Garcia M, Pineau A, Guillard O, Ragot S, Lévêque N, Agius G. Low serum selenium concentrations in French patients with measles. Curr Res Transl Med 2017; 65:89-91. [PMID: 28447938 PMCID: PMC7104300 DOI: 10.1016/j.retram.2016.10.002] [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: 09/27/2016] [Revised: 10/07/2016] [Accepted: 10/11/2016] [Indexed: 11/09/2022]
Abstract
Objective Selenium deficiency adversely affects the clinical outcome of measles in the tropics. In developed countries, serum selenium level has never been investigated during acute measles. The aim of this study was to determine serum selenium concentrations in French patients with acute measles and to seek correlations with clinical and virological findings. Patients and methods We studied serum selenium concentrations in 94 French patients with acute measles and in 99 healthy controls matched for age and sex. Results The mean of selenium concentration was significantly lower in the patients than in the controls (46.4 ± 14.1 μg/L versus 86.5 ± 13.9 μg/L, P < 0.0001). In the patients, selenium concentrations were not associated with age, sex, vaccination status, clinical signs or specific antibody responses. Selenium levels did not differ significantly between patients with uncomplicated measles (45.8 ± 14.2 μg/L) and patients with complications (52.7 ± 13.2 μg/L) (P = 0.15). Conclusion Acute measles is associated with significant reduction of selenium level that did not seem to negatively affect the course of the disease suggesting compensating mechanisms in patients from developed countries against the disease.
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Affiliation(s)
- M Garcia
- Laboratoire de virologie, CHU de Poitiers, 2, rue de la Milétrie, CS 90577, 86021 Poitiers cedex, France; UFR médecine et pharmacie, université de Poitiers, 6, rue de la Milétrie, TSA 51115, 86073 Poitiers cedex 9, France
| | - A Pineau
- UFR pharmacie, laboratoire de toxicologie, université de Nantes, 9, rue Bias, BP 53508, 44035 Nantes cedex 1, France
| | - O Guillard
- UFR médecine et pharmacie, université de Poitiers, 6, rue de la Milétrie, TSA 51115, 86073 Poitiers cedex 9, France
| | - S Ragot
- UFR médecine et pharmacie, université de Poitiers, 6, rue de la Milétrie, TSA 51115, 86073 Poitiers cedex 9, France; Inserm CIC 1402, 2, rue de la Milétrie, CS 90577, 86021 Poitiers cedex, France; Centre d'investigation clinique, CHU de Poitiers, 2, rue de la Milétrie, CS 90577, 86021 Poitiers cedex, France
| | - N Lévêque
- Laboratoire de virologie, CHU de Poitiers, 2, rue de la Milétrie, CS 90577, 86021 Poitiers cedex, France; UFR médecine et pharmacie, université de Poitiers, 6, rue de la Milétrie, TSA 51115, 86073 Poitiers cedex 9, France.
| | - G Agius
- Laboratoire de virologie, CHU de Poitiers, 2, rue de la Milétrie, CS 90577, 86021 Poitiers cedex, France; UFR médecine et pharmacie, université de Poitiers, 6, rue de la Milétrie, TSA 51115, 86073 Poitiers cedex 9, France
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Zhao Y, Garnaud C, Brenier-Pinchart MP, Thiébaut-Bertrand A, Saint-Raymond C, Camara B, Hamidfar R, Cognet O, Maubon D, Cornet M, Perlin DS. Direct Molecular Diagnosis of Aspergillosis and CYP51A Profiling from Respiratory Samples of French Patients. Front Microbiol 2016; 7:1164. [PMID: 27524978 PMCID: PMC4965478 DOI: 10.3389/fmicb.2016.01164] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 07/13/2016] [Indexed: 11/21/2022] Open
Abstract
Background: Microbiological diagnosis of aspergillosis and triazole resistance is limited by poor culture yield. To better estimate this shortcoming, we compared culture and molecular detection of A. fumigatus in respiratory samples from French patients at risk for aspergillosis. Methods: A total of 97 respiratory samples including bronchoalveolar lavages (BAL), bronchial aspirates (BA), tracheal aspirates, sputa, pleural fluids, and lung biopsy were collected from 33 patients having invasive aspergillosis (n = 12), chronic pulmonary aspergillosis (n = 3), allergic bronchopulmonary aspergillosis (n = 7), or colonization (n = 11) and 28 controls. Each specimen was evaluated by culture, pan-Aspergillus qPCR, and CYP51A PCR and sequencing. Results: One A. flavus and 19 A. fumigatus with one multiazole resistant strain (5.3%) were cultured from 20 samples. Culture positivity was 62.5, 75, 42.9, and 15.8% in ABPA, CPA, IA, and colonized patients, respectively. Aspergillus detection rate was significantly higher by pan-Aspergillus qPCR than by culture in IA (90.5 vs. 42.9%; P < 0.05) and colonization group (73.7 vs. 15.8%; P < 0.05). The CYP51A PCR found one TR34/L98H along with 5 novel cyp51A mutations (4 non-synonymous and 1 promoter mutations), yet no association can be established currently between these novel mutations and azole resistance. The analysis of 11 matched pairs of BA and BAL samples found that 9/11 BA carried greater fungal load than BAL and CYP51A detection was more sensitive in BA than in BAL. Conclusion: Direct molecular detection of Aspergillus spp. and azole resistance markers are useful adjunct tools for comprehensive aspergillosis diagnosis. The observed superior diagnostic value of BAs to BAL fluids warrants more in-depth study.
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Affiliation(s)
- Yanan Zhao
- New Jersey Medical School, Public Health Research Institute, Rutgers Biomedical and Health Sciences Newark, NJ, USA
| | - Cécile Garnaud
- Laboratoire de Parasitologie-Mycologie, Institut de Biologie et Pathologie, Centre Hospitalier Universitaire Grenoble AlpesGrenoble, France; Laboratoire TIMC-IMAG-TheREx, UMR 5525 Centre National de la Recherche Scientifique, Université Grenoble AlpesGrenoble, France
| | - Marie-Pierre Brenier-Pinchart
- Laboratoire de Parasitologie-Mycologie, Institut de Biologie et Pathologie, Centre Hospitalier Universitaire Grenoble AlpesGrenoble, France; Institut Albert Bonniot, Centre National de la Recherche Scientifique UMR 5309, Institut National de la Santé et de la Recherche Médicale U1209, Université Grenoble-AlpesGrenoble, France
| | - Anne Thiébaut-Bertrand
- Laboratoire TIMC-IMAG-TheREx, UMR 5525 Centre National de la Recherche Scientifique, Université Grenoble AlpesGrenoble, France; Clinique Universitaire d'Hématologie, Centre Hospitalier Universitaire Grenoble AlpesGrenoble, France
| | - Christel Saint-Raymond
- Clinique Universitaire de Pneumologie, Centre Hospitalier Universitaire Grenoble Alpes Grenoble, France
| | - Boubou Camara
- Clinique Universitaire de Pneumologie, Centre Hospitalier Universitaire Grenoble Alpes Grenoble, France
| | - Rebecca Hamidfar
- Réanimation Médicale, Centre Hospitalier Universitaire Grenoble Alpes Grenoble, France
| | - Odile Cognet
- Laboratoire de Parasitologie-Mycologie, Institut de Biologie et Pathologie, Centre Hospitalier Universitaire Grenoble Alpes Grenoble, France
| | - Danièle Maubon
- Laboratoire de Parasitologie-Mycologie, Institut de Biologie et Pathologie, Centre Hospitalier Universitaire Grenoble AlpesGrenoble, France; Laboratoire TIMC-IMAG-TheREx, UMR 5525 Centre National de la Recherche Scientifique, Université Grenoble AlpesGrenoble, France
| | - Muriel Cornet
- Laboratoire de Parasitologie-Mycologie, Institut de Biologie et Pathologie, Centre Hospitalier Universitaire Grenoble AlpesGrenoble, France; Laboratoire TIMC-IMAG-TheREx, UMR 5525 Centre National de la Recherche Scientifique, Université Grenoble AlpesGrenoble, France
| | - David S Perlin
- New Jersey Medical School, Public Health Research Institute, Rutgers Biomedical and Health Sciences Newark, NJ, USA
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