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Dahan J, Semin MO, Monton C, Amiriantz S, Concordet D, Raymond-Letron I, Dossin O. Comparison of routinely used intestinal biopsy forceps in dogs: an ex vivo histopathological approach. J Small Anim Pract 2017; 58:162-167. [PMID: 28267217 DOI: 10.1111/jsap.12643] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 11/18/2016] [Accepted: 12/05/2016] [Indexed: 12/29/2022]
Abstract
OBJECTIVES To compare the quality of duodenal and ileal samples obtained with different biopsy forceps. METHODS Fifteen dogs were included in a prospective ex vivo study. After euthanasia, the duodenum and the ileum were sampled with four different forceps and evaluated according to a standardised scoring system. The biopsy forceps evaluated had alligator jaws or cups with smooth edge with or without a needle. RESULTS The global quality of the biopsies was better in the ileum that in the duodenum regardless of the biopsy forceps. Biopsy forceps with smooth edge including a needle resulted in fewer artefacts than biopsy forceps with smooth edge but no needle in both sites and those with alligator jaws without a needle provided deeper biopsies than those with smooth edge without a needle only in the duodenum. There was no effect of the biopsy forceps type on the size of the biopsies. CLINICAL SIGNIFICANCE Our findings may aid in choosing the appropriate type of forceps for intestinal biopsy.
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Affiliation(s)
- J Dahan
- Department of Clinical Sciences and Clinical Research Unit, National Veterinary School - INP, University of Toulouse, Toulouse, France
| | - M O Semin
- Department of Biological Sciences, National Veterinary School - INP, University of Toulouse, Toulouse, France
| | - C Monton
- Department of Clinical Sciences and Clinical Research Unit, National Veterinary School - INP, University of Toulouse, Toulouse, France
| | - S Amiriantz
- Department of Clinical Sciences and Clinical Research Unit, National Veterinary School - INP, University of Toulouse, Toulouse, France
| | - D Concordet
- Department of Biological Sciences, National Veterinary School - INP, University of Toulouse, Toulouse, France
| | - I Raymond-Letron
- Department of Biological Sciences, National Veterinary School - INP, University of Toulouse, Toulouse, France
| | - O Dossin
- Department of Clinical Sciences and Clinical Research Unit, National Veterinary School - INP, University of Toulouse, Toulouse, France.,IRSD, INSERM 1220, INSERM, INRA, ENVT, UPS, University of Toulouse, 31024 Toulouse, France
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Millares L, Ferrari R, Gallego M, Garcia-Nuñez M, Pérez-Brocal V, Espasa M, Pomares X, Monton C, Moya A, Monsó E. Bronchial microbiome of severe COPD patients colonised by Pseudomonas aeruginosa. Eur J Clin Microbiol Infect Dis 2014; 33:1101-11. [PMID: 24449346 PMCID: PMC4042013 DOI: 10.1007/s10096-013-2044-0] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Accepted: 12/20/2013] [Indexed: 02/07/2023]
Abstract
The bronchial microbiome in severe COPD during stability and exacerbation in patients chronically colonised by Pseudomonas aeruginosa (PA), has not been defined. Our objective was to determine the characteristics of the bronchial microbiome of severe COPD patients colonised and not colonised by P. aeruginosa and its changes during exacerbation. COPD patients with severe disease and frequent exacerbations were categorised according to chronic colonisation by P. aeruginosa. Sputum samples were obtained in stability and exacerbation, cultured, and analysed by 16S rRNA gene amplification and pyrosequencing. Sixteen patients were included, 5 of them showing chronic colonisation by P. aeruginosa. Pseudomonas genus had significantly higher relative abundance in stable colonised patients (p = 0.019), but no significant differences in biodiversity parameters were found between the two groups (Shannon, 3 (2-4) vs 3 (2-3), p = 0.699; Chao1, 124 (77-159) vs 140 (115-163), p = 0.364). In PA-colonised patients bronchial microbiome changed to a microbiome similar to non-PA-colonised patients during exacerbations. An increase in the relative abundance over 20 % during exacerbation was found for Streptococcus, Pseudomonas, Moraxella, Haemophilus, Neisseria, Achromobacter and Corynebacterium genera, which include recognised potentially pathogenic microorganisms, in 13 patients colonised and not colonised by P. aeruginosa with paired samples. These increases were not identified by culture in 5 out of 13 participants (38.5 %). Stable COPD patients with severe disease and PA-colonised showed a similar biodiversity to non-PA-colonised patients, with a higher relative abundance of Pseudomonas genus in bronchial secretions. Exacerbation in severe COPD patients showed the same microbial pattern, independently of previous colonisation by P. aeruginosa.
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Affiliation(s)
- L. Millares
- Fundació Parc Taulí, Sabadell, Spain
- CIBER de Enfermedades Respiratorias, CIBERES, Bunyola, Spain
- Universitat Autònoma de Barcelona, Esfera UAB, Barcelona, Spain
- Fundació Institut d’Investigació Germans Trias i Pujol, Badalona, Spain
| | - R. Ferrari
- Genomics and Health Area, Centro Superior de Investigación en Salud Pública—Fundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunidad Valenciana (CSISP-FISABIO), Valencia, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
- Department of Genetics, Institut Cavanilles de Biodiversitat i Biologia Evolutiva, (ICBiBE) Universitat de València, Valencia, Spain
| | - M. Gallego
- CIBER de Enfermedades Respiratorias, CIBERES, Bunyola, Spain
- Department of Respiratory Medicine, Hospital Universitari Parc Taulí, Sabadell, Spain
| | - M. Garcia-Nuñez
- Fundació Parc Taulí, Sabadell, Spain
- CIBER de Enfermedades Respiratorias, CIBERES, Bunyola, Spain
- Fundació Institut d’Investigació Germans Trias i Pujol, Badalona, Spain
| | - V. Pérez-Brocal
- Genomics and Health Area, Centro Superior de Investigación en Salud Pública—Fundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunidad Valenciana (CSISP-FISABIO), Valencia, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
- Department of Genetics, Institut Cavanilles de Biodiversitat i Biologia Evolutiva, (ICBiBE) Universitat de València, Valencia, Spain
| | - M. Espasa
- Department of Microbiology, Hospital Universitari Parc Taulí, Sabadell, Spain
| | - X. Pomares
- Department of Respiratory Medicine, Hospital Universitari Parc Taulí, Sabadell, Spain
| | - C. Monton
- Department of Respiratory Medicine, Hospital Universitari Parc Taulí, Sabadell, Spain
| | - A. Moya
- Genomics and Health Area, Centro Superior de Investigación en Salud Pública—Fundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunidad Valenciana (CSISP-FISABIO), Valencia, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
- Department of Genetics, Institut Cavanilles de Biodiversitat i Biologia Evolutiva, (ICBiBE) Universitat de València, Valencia, Spain
| | - E. Monsó
- CIBER de Enfermedades Respiratorias, CIBERES, Bunyola, Spain
- Universitat Autònoma de Barcelona, Esfera UAB, Barcelona, Spain
- Department of Respiratory Medicine, Hospital Universitari Parc Taulí, Sabadell, Spain
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Willey TM, Bagge-Hansen M, Lee JRI, Call R, Landt L, van Buuren T, Colesniuc C, Monton C, Valmianski I, Schuller IK. Electronic structure differences between H2-, Fe-, Co-, and Cu-phthalocyanine highly oriented thin films observed using NEXAFS spectroscopy. J Chem Phys 2013; 139:034701. [DOI: 10.1063/1.4811487] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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Galvez F, Monton C, Serrano A, Valmianski I, de la Venta J, Schuller IK, Garcia MA. Effect of photodiode angular response on surface plasmon resonance measurements in the Kretschmann-Raether configuration. Rev Sci Instrum 2012; 83:093102. [PMID: 23020357 DOI: 10.1063/1.4748521] [Citation(s) in RCA: 2] [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] [Indexed: 06/01/2023]
Abstract
We study the effect of photodiode angular response on the measurement of surface plasmon resonance (SPR) in metallic thin films using the Kretschmann-Raether configuration. The photodiode signal depends not only on the light intensity but also on the incidence angle. This implies that the photodiode sensitivity changes along the SPR curve. Consequently, the measured SPR spectrum is distorted, thus affecting fits and numerical analyses of SPR curves. We analyze the magnitude of this change, determine when it is significant, and develop a calibration method of the experimental setup which corrects for this type of spectral shape distortions.
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Affiliation(s)
- F Galvez
- Dpto. Física de Materiales, Universidad Complutense de Madrid, 28040 Madrid, Spain
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Serrano A, Rodríguez de la Fuente O, Collado V, Rubio-Zuazo J, Monton C, Castro GR, García MA. Simultaneous surface plasmon resonance and x-ray absorption spectroscopy. Rev Sci Instrum 2012; 83:083101. [PMID: 22938268 DOI: 10.1063/1.4739773] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We present an experimental setup for the simultaneous measurement of surface plasmon resonance (SPR) and x-ray absorption spectroscopy (XAS) on metallic thin films at a synchrotron beamline. The system allows measuring in situ and in real time the effect of x-ray irradiation on the SPR curves to explore the interaction of x-rays with matter. It is also possible to record XAS spectra while exciting SPR in order to study changes in the films induced by the excitation of surface plasmons. Combined experiments recording simultaneously SPR and XAS curves while scanning different parameters can be also carried out. The relative variations in the SPR and XAS spectra that can be detected with this setup range from 10(-3) to 10(-5), depending on the particular experiment.
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Affiliation(s)
- A Serrano
- Instituto de Cerámica y Vidrio (ICV-CSIC), Cantoblanco, 28049 Madrid, Spain.
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Abstract
OBJECTIVE The aim of this paper is to assess the attitudes of Spanish general practitioners towards somatisers and the degree of involvement that family doctors are ready to adopt in the care of these patients. METHOD A postal questionnaire on attitudes was sent to a representative sample (n = 135) of general practitioners from two health districts of the region of Aragon. Seventy (51.8%) of them returned usable questionnaires. RESULTS Most of the general practitioners were interested in the treatment of somatisers and considered that they should be treated at primary care level. However, when specific treatment tasks were proposed, they only accepted to act as a filter to specialised care and to care for patients with chronic functional syndromes. Additionally, they refuse to detect presenting somatisers, to prescribe psychotropic drugs or offer any psychological approach, and to avoid reinforcing abnormal illness behaviour in these patients and their families. These findings can be explained because the main emotions somatisers produce in doctors are frustration and anger. CONCLUSIONS Family doctors need a lot more help, education and support in the management of somatisers, and psychiatrists need to provide it. Any management program for the treatment of somatisers in primary care should include methods to modify general practitioners' attitudes towards these patients.
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Affiliation(s)
- J Garcia-Campayo
- Unidad de Trastornos Somatomorfos, Hospital Miguel Servet, Zaragoza, Spain
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