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Correa Y, Jansen M, Blanchet C, Roosen-Runge F, Pedersen J, Cárdenas M. Structural studies on LDL from patients with high and low lipoprotein (a). Atherosclerosis 2022. [DOI: 10.1016/j.atherosclerosis.2022.06.394] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Lachal J, Carretier E, Prevost C, Nadeau PO, Taddeo D, Fortin MC, Blanchet C, Amirali L, Wilhelmy M, Frappier JY, Moro MR, Ben Amor L. The experience of healthcare professionals treating adolescents with eating disorders in psychiatric and pediatric inpatient units for adolescents: A qualitative study. Encephale 2022:S0013-7006(22)00076-8. [PMID: 35725521 DOI: 10.1016/j.encep.2022.01.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/18/2022] [Accepted: 01/27/2022] [Indexed: 11/18/2022]
Abstract
OBJECTIVES The recommended treatment for Eating Disorders (EDs) is multidisciplinary and multimodal. Nonetheless, the complex linkage of the different disciplines involved is not necessarily simple. We analyzed the experience of healthcare professionals faced with psychiatric and psychological symptoms in adolescents with EDs in two "multidisciplinary" inpatient units embedded predominantly in different paradigms - one pediatric and one psychiatric. METHODS Qualitative analysis of 20 healthcare staff members' interviews from different professional backgrounds working in inpatient units for EDs in Montreal (Canada) and Paris (France). RESULTS The "Complex patients" theme discusses the need for a global approach to the multiplicity of symptoms presented by these patients. "Management and its limits" describes the daily management of psychiatric symptoms in both units. "Psychiatry and Adolescent medicine: from opposition to collaboration" describes the different levels at which these disciplines work together and how this cooperation may be evolving. CONCLUSIONS The complex entanglement intrinsic in EDs of the patients' somatic, psychosocial, psychiatric, and adolescent problems requires collaboration between disciplines, but the modalities of this collaboration are multiple and evolve non-linearly in specialized treatment units. A multilevel approach must be offered, with the degree of collaboration (multidisciplinary, interdisciplinary and transdisciplinary) appropriate to the complexity of each adolescent's issues.
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Affiliation(s)
- J Lachal
- Service de psychiatrie de l'enfant et de l'adolescent, CHU de Clermont-Ferrand, 63000 Clermont-Ferrand, France; Université Clermont-Auvergne, 63000 Clermont-Ferrand, France; Université Paris-Saclay, UVSQ, Inserm, CESP, Team DevPsy, 94807 Villejuif, France.
| | - E Carretier
- Université Paris-Saclay, UVSQ, Inserm, CESP, Team DevPsy, 94807 Villejuif, France; AP-HP, hôpital Cochin, Maison de Solenn, 75014 Paris, France; Université de Paris, PCPP, 92100 Boulogne-Billancourt, France
| | - C Prevost
- AP-HP, hôpital Cochin, Maison de Solenn, 75014 Paris, France
| | - P-O Nadeau
- Département de psychiatrie, université de Montréal, Montréal, Canada
| | - D Taddeo
- Adolescent Medicine Division, CHU Sainte-Justine, 3175 Ch Cote Ste-Catherine, H3T1C5 Montreal, Canada
| | - M-C Fortin
- Adolescent Medicine Division, CHU Sainte-Justine, 3175 Ch Cote Ste-Catherine, H3T1C5 Montreal, Canada
| | - C Blanchet
- Université Paris-Saclay, UVSQ, Inserm, CESP, Team DevPsy, 94807 Villejuif, France; AP-HP, hôpital Cochin, Maison de Solenn, 75014 Paris, France; Université de Paris, PCPP, 92100 Boulogne-Billancourt, France
| | - L Amirali
- Département de psychiatrie, université de Montréal, Montréal, Canada
| | - M Wilhelmy
- Département de psychiatrie, université de Montréal, Montréal, Canada
| | - J-Y Frappier
- Adolescent Medicine Division, CHU Sainte-Justine, 3175 Ch Cote Ste-Catherine, H3T1C5 Montreal, Canada
| | - M R Moro
- Université Paris-Saclay, UVSQ, Inserm, CESP, Team DevPsy, 94807 Villejuif, France; AP-HP, hôpital Cochin, Maison de Solenn, 75014 Paris, France; Université de Paris, PCPP, 92100 Boulogne-Billancourt, France
| | - L Ben Amor
- Département de psychiatrie, université de Montréal, Montréal, Canada
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Demongeot N, Akkari M, Blanchet C, Godreuil S, Prodhomme O, Leboucq N, Mondain M, Jeziorski E. Pediatric deep neck infections: Clinical description and analysis of therapeutic management. Arch Pediatr 2021; 29:128-132. [PMID: 34955300 DOI: 10.1016/j.arcped.2021.11.011] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 10/20/2021] [Accepted: 11/30/2021] [Indexed: 10/19/2022]
Abstract
OBJECTIVES The aim of our study was to describe clinical presentations, bacteriological results, and therapeutic management in a pediatric population presenting with acute pharyngeal suppuration. A further aim was to identify clinical, bacteriological, and radiological predictors of success associated with exclusive medical treatment. METHOD A retrospective study was carried out including patients under 18 years of age hospitalized between January 1, 2015 and December 31, 2017 in our center for acute pharyngeal suppuration. We identified three groups of patients: group A, treated with exclusive intravenous antibiotics; group B, surgically treated after 48 h of appropriate antibiotic therapy, due to persistent fever and/or clinical worsening and/or persistence of a collection on follow-up imaging; group C, surgically treated as first-line therapy in association with intravenous antibiotics. A total of 83 patients were included: 36 in group A, 12 in group B, and 35 in group C. These three groups were compared for several variables: age of the patients, polynuclear neutrophil counts, diameter of the collections (the largest diameter found on imaging), duration of antibiotic therapy, delay before return to apyrexia, and hospitalization duration. RESULTS A neck mass and torticollis were present, respectively, in 48.8 and 47.6% of cases. No breathing difficulties were reported. Streptococcus pyogenes was the most frequently identified microorganism. The average diameter of the collections from patients treated surgically as first-line therapy (group C) was significantly larger than that of the patients treated with antibiotics (group A) (27.89 mm vs. 18.73 mm, respectively, p = 0.0006). All the patients who required surgery despite 48 h of appropriate antibiotic therapy (group B) had collections with diameters greater than or equal to 15 mm. There was no significant difference between the groups concerning hospitalization duration. CONCLUSION Exclusive medical treatment is associated with a high cure rate, mainly for collections with small diameter. We recommend special attention to patients treated with first-line exclusive intravenous antibiotic therapy and with a collection diameter greater than or equal to 15 mm.
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Affiliation(s)
- N Demongeot
- Department of Pediatrics, University Hospital Arnaud de Villeneuve, University of Montpellier, France
| | - M Akkari
- Department of Ear Nose and Throat and Head and Neck surgery, University Hospital Gui de Chauliac, 80 avenue Augustin Fliche, University of Montpellier, Montpellier 34295 Cedex 5, France.
| | - C Blanchet
- Department of Ear Nose and Throat and Head and Neck surgery, University Hospital Gui de Chauliac, 80 avenue Augustin Fliche, University of Montpellier, Montpellier 34295 Cedex 5, France
| | - S Godreuil
- Department of Bacteriology, University Hospital Arnaud de Villeneuve, UMR MIVEGEC, UMR IRD 224-CNRS INSERM 1058, University of Montpellier, Montpellier, France
| | - O Prodhomme
- Department of Pediatric imaging, University Hospital Arnaud de Villeneuve, University of Montpellier, France
| | - N Leboucq
- Department of Bacteriology, University Hospital Arnaud de Villeneuve, UMR MIVEGEC, UMR IRD 224-CNRS INSERM 1058, University of Montpellier, Montpellier, France
| | - M Mondain
- Department of Ear Nose and Throat and Head and Neck surgery, University Hospital Gui de Chauliac, 80 avenue Augustin Fliche, University of Montpellier, Montpellier 34295 Cedex 5, France
| | - E Jeziorski
- Department of Pediatrics, University Hospital Arnaud de Villeneuve, University of Montpellier, France; Pathogenesis and Control of Chronic Infections, INSERM, University of Montpellier, Montpellier, France
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Benzerdjeb N, Tantot J, Blanchet C, Philouze P, Mekki Y, Lopez J, Devouassoux-Shisheboran M. Oropharyngeal squamous cell carcinoma: p16/p53 immunohistochemistry as a strong predictor of HPV tumour status. Histopathology 2021; 79:381-390. [PMID: 33560536 DOI: 10.1111/his.14350] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 02/02/2021] [Accepted: 02/06/2021] [Indexed: 12/13/2022]
Abstract
AIMS Oropharyngeal squamous cell carcinomas (OPSCC) related to human papillomavirus (HPV) infection have a better prognosis than those without HPV infection. Although p16INK4a overexpression is used as a surrogate marker for HPV infection, 5-20% of p16-positive OPSCC are described as being unrelated to HPV infection, with worse overall survival compared to OPSCC-related HPV. There is therefore a risk of undertreating a proportion of OPSCC patients falsely considered to be HPV-driven because of p16 positivity. TP53 mutations are highly prevalent in OPSCC driven by mutagens in tobacco and alcohol. We describe herein a combined p16/p53 algorithm to predict HPV tumour status in OPSCC. METHODS AND RESULTS A total of 110 OPSCC were identified in the database of the pathology department and were studied using p16 and p53 immunohistochemistry. For p16-positive or p16-negative/wild-type patterns-p53 (WT-p53) cases (n = 63), DNA in-situ hybridisation for high-risk HPV was performed, and if negative the HPV status was controlled by HPV DNA polymerase chain reaction (PCR) (n = 19). A significant association between TP53 mutation and pattern of p53 expression was found (WT-p53, seven of 16, P < 0.001). The p16-positive/WT-p53 was significantly associated with HPV+ tumour status (p16-positive/WT-p53, 50 of 110, P < 0.001). Interestingly, a subset of p16-positive OPSCC was unrelated to HPV (13.5%, eight of 59), and showed mutant-type staining of p53 expression. CONCLUSIONS The p16 protein immunopositivity in conjunction with the mutant-type pattern of p53 staining helped to reclassify a subset of p16-positive OPSCC as OPSCC-unrelated HPV. This approach could be routinely applied by pathologists involved in the management of OPSCC, because of their potential therapeutic implications.
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Affiliation(s)
- Nazim Benzerdjeb
- Department of Pathology, Institut de Pathologie Multisite, Groupement Hospitalier Sud, Hospices Civils de Lyon, Pierre-Bénite, France.,Université Lyon 1, Villeurbanne, Hôpital La Croix Rousse, Hospices Civils de Lyon, Lyon, France
| | - Juliet Tantot
- Department of Pathology, Institut de Pathologie Multisite, Groupement Hospitalier Sud, Hospices Civils de Lyon, Pierre-Bénite, France
| | - Christophe Blanchet
- Department of Pathology, Institut de Pathologie Multisite, Groupement Hospitalier Sud, Hospices Civils de Lyon, Pierre-Bénite, France.,Université Lyon 1, Villeurbanne, Hôpital La Croix Rousse, Hospices Civils de Lyon, Lyon, France
| | - Pierre Philouze
- Service d'Oto-Rhino-Laryngologie et Chirurgie Cervico-Faciale, Hôpital La Croix Rousse, Hospices Civils de Lyon, Lyon, France
| | - Yahia Mekki
- Laboratoire de Virologie, Institut des Agents Infectieux, Centre de Biologie et de Pathologie Nord, Hospices Civils de Lyon, Lyon, France
| | - Jonathan Lopez
- Biochemistry and Molecular Biology Department, Hospital Lyon-Sud, Université Lyon I, Lyon, Pierre-Bénite, France
| | - Mojgan Devouassoux-Shisheboran
- Department of Pathology, Institut de Pathologie Multisite, Groupement Hospitalier Sud, Hospices Civils de Lyon, Pierre-Bénite, France.,Université Lyon 1, Villeurbanne, Hôpital La Croix Rousse, Hospices Civils de Lyon, Lyon, France
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Ibrahim N, Barruchet A, Moro MR, Blanchet C. Severe neutropenia in an anorexic adolescent girl: a stigma of underfeeding syndrome? Eat Weight Disord 2021; 26:1271-1275. [PMID: 32978756 DOI: 10.1007/s40519-020-01016-0] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 09/08/2020] [Indexed: 12/13/2022] Open
Abstract
PURPOSE We describe a case of severe, prolonged neutropenia in an adolescent girl hospitalized for anorexia nervosa (AN) which occurred during a refeeding procedure in the absence of refeeding syndrome. METHODS This case report includes retrospective anamnestic, clinical and biological data from the patient's medical record. A literature review was conducted on the haematological changes described in the undernutrition and refeeding periods, and also on recent data for underfeeding syndrome in patients with anorexia nervosa. CONCLUSION Leuconeutropenia is an adaptive condition observed in undernutrition in AN, usually rapidly and completely reversible in the course of refeeding and weight gain. We describe a rare case of severe, prolonged neutropenia despite appropriate care in the absence of refeeding syndrome and without gelatinous bone marrow transformation. We suggest that neutropenia in adolescent anorexia nervosa could be a stigma of underfeeding syndrome resulting from an overly cautious refeeding strategy. LEVEL OF EVIDENCE Level V, descriptive study.
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Affiliation(s)
- N Ibrahim
- APHP, Cochin Hospital, Maison de Solenn, 75014, Paris, France
| | - A Barruchet
- APHP, Cochin Hospital, Maison de Solenn, 75014, Paris, France
| | - M R Moro
- APHP, Cochin Hospital, Maison de Solenn, 75014, Paris, France
- University of Paris, PCPP, 92100, Boulogne-Billancourt, France
- University of Paris-Saclay-UVSQ, INSERM, CESP, Team DevPsy, 94805, Villejuif, France
| | - C Blanchet
- APHP, Cochin Hospital, Maison de Solenn, 75014, Paris, France.
- University of Paris, PCPP, 92100, Boulogne-Billancourt, France.
- University of Paris-Saclay-UVSQ, INSERM, CESP, Team DevPsy, 94805, Villejuif, France.
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Carretier E, Guessoum SB, Radjack R, Mao SF, Minassian S, Blanchet C, Moro MR, Lachal J. [Adjustment of healthcare and telemedicine in times of lockdown and COVID-19 pandemic: Feedback from a "Maison des Adolescents" (Teenager's House)]. ACTA ACUST UNITED AC 2021; 69:132-137. [PMID: 33612908 PMCID: PMC7885696 DOI: 10.1016/j.neurenf.2021.02.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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] [Indexed: 11/19/2022]
Abstract
La crise sanitaire de la COVID-19 a imposé une réorganisation majeure de l’offre de soins en France. Considérant la nécessité de maintenir des soins pour les adolescents souffrant de troubles physiques ou psychiques, les Maisons des Adolescents ont dû adapter en urgence leurs pratiques afin de maintenir au maximum la continuité des soins pour les adolescents et leurs familles. À travers le cas d’une adolescente qui a présenté une dégradation clinique de son anorexie mentale durant le confinement, nous présentons les réorganisations des soins au sein des différentes unités (consultations–hôpital de jour–unité d’hospitalisation temps plein) d’une Maison des Adolescents parisienne au cours de la pandémie de COVID-19. À partir de la littérature existante, nous discutons les avantages et limites de la télémédecine et les enjeux pratiques pour l’organisation future des soins pour les adolescents. Contrairement à la médecine pédiatrique ou pédopsychiatrique, il n’existe pas de protocole décrivant la mise en place de la télémédecine en médecine et psychiatrie de l’adolescent. Il est urgent d’approfondir les évaluations de l’utilisation de la télémédecine pour les adolescents. Ce type de recherche permettra d’améliorer les connaissances sur l’efficacité, l’acceptabilité et les limites de l’utilisation d’un dispositif de téléconsultation en psychiatrie de l’adolescent, en contexte de crise. Certaines modalités de soins à distance mises en place pendant la crise pourraient ainsi être maintenues dans le temps et s’inscrire en routine dans le domaine de la médecine et psychiatrie de l’adolescent.
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Affiliation(s)
- E Carretier
- APHP, Cochin Hospital, Maison de Solenn, 75014 Paris, France
- Université de Paris, PCPP, 92100 Boulogne-Billancourt, France
- Université Paris-Saclay, UVSQ, Inserm, CESP, Team DevPsy, 94807 Villejuif, France
| | - S B Guessoum
- APHP, Cochin Hospital, Maison de Solenn, 75014 Paris, France
- Université de Paris, PCPP, 92100 Boulogne-Billancourt, France
- Université Paris-Saclay, UVSQ, Inserm, CESP, Team DevPsy, 94807 Villejuif, France
| | - R Radjack
- APHP, Cochin Hospital, Maison de Solenn, 75014 Paris, France
- Université Paris-Saclay, UVSQ, Inserm, CESP, Team DevPsy, 94807 Villejuif, France
| | - S-F Mao
- APHP, Cochin Hospital, Maison de Solenn, 75014 Paris, France
- Université de Paris, UFR IHSS, 75013 Paris, France
| | - S Minassian
- APHP, Cochin Hospital, Maison de Solenn, 75014 Paris, France
| | - C Blanchet
- APHP, Cochin Hospital, Maison de Solenn, 75014 Paris, France
- Université de Paris, PCPP, 92100 Boulogne-Billancourt, France
- Université Paris-Saclay, UVSQ, Inserm, CESP, Team DevPsy, 94807 Villejuif, France
| | - M R Moro
- APHP, Cochin Hospital, Maison de Solenn, 75014 Paris, France
- Université de Paris, PCPP, 92100 Boulogne-Billancourt, France
- Université Paris-Saclay, UVSQ, Inserm, CESP, Team DevPsy, 94807 Villejuif, France
| | - J Lachal
- APHP, Cochin Hospital, Maison de Solenn, 75014 Paris, France
- Université de Paris, PCPP, 92100 Boulogne-Billancourt, France
- Université Paris-Saclay, UVSQ, Inserm, CESP, Team DevPsy, 94807 Villejuif, France
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Blanc F, Blanchet C, Mondain M, Akkari M. Authors' response to the Letter concerning "Tracheal injury complicating Sistrunk's thyroglossal cyst surgery". Eur Ann Otorhinolaryngol Head Neck Dis 2020; 137:357. [PMID: 32660832 DOI: 10.1016/j.anorl.2020.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- F Blanc
- Service d'ORL et Chirurgie Cervico Faciale, UAM d'ORL Pédiatrique, Hôpital Gui de Chauliac, CHU de Montpellier, Université de Montpellier, France, 80, avenue Augustin-Fliche, 34295 Montpellier Cedex 5, France
| | - C Blanchet
- Service d'ORL et Chirurgie Cervico Faciale, UAM d'ORL Pédiatrique, Hôpital Gui de Chauliac, CHU de Montpellier, Université de Montpellier, France, 80, avenue Augustin-Fliche, 34295 Montpellier Cedex 5, France
| | - M Mondain
- Service d'ORL et Chirurgie Cervico Faciale, UAM d'ORL Pédiatrique, Hôpital Gui de Chauliac, CHU de Montpellier, Université de Montpellier, France, 80, avenue Augustin-Fliche, 34295 Montpellier Cedex 5, France
| | - M Akkari
- Service d'ORL et Chirurgie Cervico Faciale, UAM d'ORL Pédiatrique, Hôpital Gui de Chauliac, CHU de Montpellier, Université de Montpellier, France, 80, avenue Augustin-Fliche, 34295 Montpellier Cedex 5, France.
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Bonneau C, Eliès A, Kieffer Y, Bourachot B, Ladoire S, Pelon F, Hequet D, Guinebretière JM, Blanchet C, Vincent-Salomon A, Rouzier R, Mechta-Grigoriou F. A subset of activated fibroblasts is associated with distant relapse in early luminal breast cancer. Breast Cancer Res 2020; 22:76. [PMID: 32665033 PMCID: PMC7362513 DOI: 10.1186/s13058-020-01311-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [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: 01/03/2020] [Accepted: 06/30/2020] [Indexed: 12/21/2022] Open
Abstract
Background Early luminal breast cancer (BC) represents 70% of newly diagnosed BC cases. Among them, small (under 2 cm) BC without lymph node metastasis (classified as T1N0) have been rarely studied, as their prognosis is generally favorable. Nevertheless, up to 5% of luminal T1N0 BC patients relapse with distant metastases that ultimately prove fatal. The aim of our work was to identify the mechanisms involved in metastatic recurrence in these patients. Methods Our study addresses the role that autonomous and non-autonomous tumor cell features play with regard to distant recurrence in early luminal BC patients. We created a cohort of T1N0 luminal BC patients (tumors between 0.5–2 cm without lymph node metastasis) with metastatic recurrence (“cases”) and corresponding “controls” (without relapse) matched 1:1 on main prognostic factors: age, grade, and proliferation. We deciphered different characteristics of cancer cells and their tumor micro-environment (TME) by deep analyses using immunohistochemistry. We performed in vitro functional assays and highlighted a new mechanism of cooperation between cancer cells and one particular subset of cancer-associated fibroblasts (CAF). Results We found that specific TME features are indicative of relapse in early luminal BC. Indeed, quantitative histological analyses reveal that “cases” are characterized by significant accumulation of a particular CAF subset (CAF-S1) and decrease in CD4+ T lymphocytes, without any other association with immune cells. In multivariate analysis, TME features, in particular CAF-S1 enrichment, remain significantly associated with recurrence, thereby demonstrating their clinical relevance. Finally, by performing functional analyses, we demonstrated that CAF-S1 pro-metastatic activity is mediated by the CDH11/osteoblast cadherin, consistent with bones being a major site of metastases in luminal BC patients. Conclusions This study shows that distant recurrence in T1N0 BC is strongly associated with the presence of CAF-S1 fibroblasts. Moreover, we identify CDH11 as a key player in CAF-S1-mediated pro-metastatic activity. This is independent of tumor cells and represents a new prognostic factor. These results could assist clinicians in identifying luminal BC patients with high risk of relapse. Targeted therapies against CAF-S1 using anti-FAP antibody or CDH11-targeting compounds might help in preventing relapse for such patients with activated stroma.
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Affiliation(s)
- Claire Bonneau
- Stress and Cancer Laboratory, Equipe labelisée Ligue Nationale Contre le Cancer, Institut Curie, PSL Research University, 26, rue d'Ulm, F-75005, Paris, France.,Inserm U830, Institut Curie, PSL Research University, 26, rue d'Ulm, F-75005, Paris, France.,Department of Surgery, Institut Curie Hospital Group, 35 rue Dailly, 92210, Saint-Cloud, France
| | - Antoine Eliès
- Stress and Cancer Laboratory, Equipe labelisée Ligue Nationale Contre le Cancer, Institut Curie, PSL Research University, 26, rue d'Ulm, F-75005, Paris, France.,Inserm U830, Institut Curie, PSL Research University, 26, rue d'Ulm, F-75005, Paris, France.,Department of Surgery, Institut Curie Hospital Group, 35 rue Dailly, 92210, Saint-Cloud, France
| | - Yann Kieffer
- Stress and Cancer Laboratory, Equipe labelisée Ligue Nationale Contre le Cancer, Institut Curie, PSL Research University, 26, rue d'Ulm, F-75005, Paris, France.,Inserm U830, Institut Curie, PSL Research University, 26, rue d'Ulm, F-75005, Paris, France
| | - Brigitte Bourachot
- Stress and Cancer Laboratory, Equipe labelisée Ligue Nationale Contre le Cancer, Institut Curie, PSL Research University, 26, rue d'Ulm, F-75005, Paris, France.,Inserm U830, Institut Curie, PSL Research University, 26, rue d'Ulm, F-75005, Paris, France
| | - Sylvain Ladoire
- Inserm U1231, Chemotherapy and immune response, Center Georges François Leclerc, 1 rue du Professeur Marion, 21000, Dijon, France
| | - Floriane Pelon
- Stress and Cancer Laboratory, Equipe labelisée Ligue Nationale Contre le Cancer, Institut Curie, PSL Research University, 26, rue d'Ulm, F-75005, Paris, France.,Inserm U830, Institut Curie, PSL Research University, 26, rue d'Ulm, F-75005, Paris, France
| | - Delphine Hequet
- Department of Surgery, Institut Curie Hospital Group, 35 rue Dailly, 92210, Saint-Cloud, France
| | - Jean-Marc Guinebretière
- Department of Pathology, Institut Curie Hospital Group, 35 rue Dailly, 92210, Saint-Cloud, France
| | - Christophe Blanchet
- Inserm U1231, Chemotherapy and immune response, Center Georges François Leclerc, 1 rue du Professeur Marion, 21000, Dijon, France
| | - Anne Vincent-Salomon
- Department of Pathology, Institut Curie Hospital Group, 26, rue d'Ulm, 75248, Paris, France
| | - Roman Rouzier
- Department of Surgery, Institut Curie Hospital Group, 35 rue Dailly, 92210, Saint-Cloud, France.,Inserm U900, Cancer et génome : bioinformatique, biostatistiques et épidémiologie, Institut Curie, 35 rue Dailly, 92210, Saint-Cloud, France.,UR 7285, Risques cliniques et sécurité en santé des femmes et en santé périnatale, Versailles Saint Quentin en Yvelines University, 2 avenue de la source de la Bièvre, 78180 Montigny-le-Bretonneux, France
| | - Fatima Mechta-Grigoriou
- Stress and Cancer Laboratory, Equipe labelisée Ligue Nationale Contre le Cancer, Institut Curie, PSL Research University, 26, rue d'Ulm, F-75005, Paris, France. .,Inserm U830, Institut Curie, PSL Research University, 26, rue d'Ulm, F-75005, Paris, France.
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9
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Guyon C, Jmari N, Padonou F, Li YC, Ucar O, Fujikado N, Coulpier F, Blanchet C, Root DE, Giraud M. Aire-dependent genes undergo Clp1-mediated 3'UTR shortening associated with higher transcript stability in the thymus. eLife 2020; 9:52985. [PMID: 32338592 PMCID: PMC7205469 DOI: 10.7554/elife.52985] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [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: 10/23/2019] [Accepted: 04/24/2020] [Indexed: 12/23/2022] Open
Abstract
The ability of the immune system to avoid autoimmune disease relies on tolerization of thymocytes to self-antigens whose expression and presentation by thymic medullary epithelial cells (mTECs) is controlled predominantly by Aire at the transcriptional level and possibly regulated at other unrecognized levels. Aire-sensitive gene expression is influenced by several molecular factors, some of which belong to the 3'end processing complex, suggesting they might impact transcript stability and levels through an effect on 3'UTR shortening. We discovered that Aire-sensitive genes display a pronounced preference for short-3'UTR transcript isoforms in mTECs, a feature preceding Aire's expression and correlated with the preferential selection of proximal polyA sites by the 3'end processing complex. Through an RNAi screen and generation of a lentigenic mouse, we found that one factor, Clp1, promotes 3'UTR shortening associated with higher transcript stability and expression of Aire-sensitive genes, revealing a post-transcriptional level of control of Aire-activated expression in mTECs.
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Affiliation(s)
- Clotilde Guyon
- Institut Cochin, INSERM U1016, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Nada Jmari
- Institut Cochin, INSERM U1016, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Francine Padonou
- Institut Cochin, INSERM U1016, Université Paris Descartes, Sorbonne Paris Cité, Paris, France.,Université de Nantes, Inserm, Centre de Recherche en Transplantation et Immunologie, UMR 1064, ITUN, F-44000, Nantes, France
| | - Yen-Chin Li
- Institut Cochin, INSERM U1016, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Olga Ucar
- Division of Developmental Immunology, German Cancer Research Center, Heidelberg, Germany
| | - Noriyuki Fujikado
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, United States
| | - Fanny Coulpier
- Ecole Normale Supérieure, PSL Research University, CNRS, INSERM, Institut de Biologie de l'Ecole Normale Supérieure (IBENS), Plateforme Génomique, Paris, France
| | | | - David E Root
- The Broad Institute of MIT and Harvard, Cambridge, United States
| | - Matthieu Giraud
- Institut Cochin, INSERM U1016, Université Paris Descartes, Sorbonne Paris Cité, Paris, France.,Université de Nantes, Inserm, Centre de Recherche en Transplantation et Immunologie, UMR 1064, ITUN, F-44000, Nantes, France
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10
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Bessis D, Rigau V, Marque M, Best M, Bigorre M, Blanchet C, Akkari M, Captier G. Fibrolipome lingual congénital. Ann Dermatol Venereol 2019. [DOI: 10.1016/j.annder.2019.09.269] [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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11
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Abstract
INTRODUCTION Airway injury is a very rare complication of thyroglossal duct cyst surgery in children. The wound is most frequently located at the larynx, due to a confusion between the hyoid bone and the thyroid cartilage. OBSERVATION This is the first report of a tracheal injury complicating Sistrunk's procedure in a 3 year old child, revealed by respiratory distress. Conservative treatment was suggested, requiring a tracheostomy lasting 49 days, leading to decanulation and complete anatomical and functional recovery. CONCLUSION This report highlights the specificity of pediatric laryngotracheal anatomy.
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Affiliation(s)
- F Blanc
- Service d'ORL et chirurgie cervico-faciale, UAM d'ORL pédiatrique, Hôpital Gui-de-Chauliac, Université de Montpellier, CHU de Montpellier, 80, avenue Augustin-Fliche, 34295 Montpellier cedex 5, France.
| | - C Blanchet
- Service d'ORL et chirurgie cervico-faciale, UAM d'ORL pédiatrique, Hôpital Gui-de-Chauliac, Université de Montpellier, CHU de Montpellier, 80, avenue Augustin-Fliche, 34295 Montpellier cedex 5, France
| | - M Mondain
- Service d'ORL et chirurgie cervico-faciale, UAM d'ORL pédiatrique, Hôpital Gui-de-Chauliac, Université de Montpellier, CHU de Montpellier, 80, avenue Augustin-Fliche, 34295 Montpellier cedex 5, France
| | - M Akkari
- Service d'ORL et chirurgie cervico-faciale, UAM d'ORL pédiatrique, Hôpital Gui-de-Chauliac, Université de Montpellier, CHU de Montpellier, 80, avenue Augustin-Fliche, 34295 Montpellier cedex 5, France
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12
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Simon F, Roman S, Truy E, Barone P, Belmin J, Blanchet C, Borel S, Charpiot A, Coez A, Deguine O, Farinetti A, Godey B, Lazard D, Marx M, Mosnier I, Nguyen Y, Teissier N, Virole B, Lescanne E, Loundon N. Guidelines (short version) of the French Society of Otorhinolaryngology (SFORL) on pediatric cochlear implant indications. Eur Ann Otorhinolaryngol Head Neck Dis 2019; 136:385-391. [DOI: 10.1016/j.anorl.2019.05.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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13
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Blanc F, Kennel T, Merklen F, Blanchet C, Mondain M, Akkari M. Contribution of drug-induced sleep endoscopy to the management of pediatric obstructive sleep apnea/hypopnea syndrome. Eur Ann Otorhinolaryngol Head Neck Dis 2019; 136:447-454. [PMID: 31537488 DOI: 10.1016/j.anorl.2019.09.001] [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] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVES The role of drug-induced sleep endoscopy (DISE) in the management of obstructive sleep apnea/hypopnea syndrome (OSAHS) is not precisely defined in children. The primary objective of this study was to describe DISE-induced revision of airway obstruction site location and the ensuing treatment changes in children with OSAHS. Secondary objectives were to analyze the correlation of number of obstruction sites found on DISE with apnea-hypopnea index (AHI) and with type of OSAHS. MATERIAL AND METHODS A retrospective single-center study included 31 children (mean age: 5.5±2.6years) undergoing DISE for management of OSAHS between 2015 and 2018. Revisions of airway obstruction site location and in treatment were noted. The correlation of number of obstruction sites with AHI and with type of OSAHS was analyzed. RESULTS Airway obstruction site location was reconsidered in 77% of children (n=24), modifying treatment in 45.2% (n=14). There was no significant correlation between number of obstruction sites and AHI: Spearman coefficient 0.20 (P=0.26). Patients with type-III OSAHS did not show more obstruction sites than others: respectively, 2.0 versus 1.8 (P=0.40). CONCLUSION DISE induced significant revision of the location and change in treatment of obstruction sites in children with OSAHS. Systematic implementation, especially in type-I OSAHS, would allow more precise pre-therapeutic classification and treatment adapted to actual airway obstruction.
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Affiliation(s)
- F Blanc
- Service d'ORL et Chirurgie Cervico Faciale, UAM d'ORL Pédiatrique, Hôpital Gui de-Chauliac, CHU de Montpellier, Université de Montpellier, 80, avenue Augustin-Fliche, 34295 Montpellier cedex 5, France
| | - T Kennel
- Service d'ORL et Chirurgie Cervico Faciale, UAM d'ORL Pédiatrique, Hôpital Gui de-Chauliac, CHU de Montpellier, Université de Montpellier, 80, avenue Augustin-Fliche, 34295 Montpellier cedex 5, France
| | - F Merklen
- Service d'ORL et Chirurgie Cervico Faciale, UAM d'ORL Pédiatrique, Hôpital Gui de-Chauliac, CHU de Montpellier, Université de Montpellier, 80, avenue Augustin-Fliche, 34295 Montpellier cedex 5, France
| | - C Blanchet
- Service d'ORL et Chirurgie Cervico Faciale, UAM d'ORL Pédiatrique, Hôpital Gui de-Chauliac, CHU de Montpellier, Université de Montpellier, 80, avenue Augustin-Fliche, 34295 Montpellier cedex 5, France
| | - M Mondain
- Service d'ORL et Chirurgie Cervico Faciale, UAM d'ORL Pédiatrique, Hôpital Gui de-Chauliac, CHU de Montpellier, Université de Montpellier, 80, avenue Augustin-Fliche, 34295 Montpellier cedex 5, France
| | - M Akkari
- Service d'ORL et Chirurgie Cervico Faciale, UAM d'ORL Pédiatrique, Hôpital Gui de-Chauliac, CHU de Montpellier, Université de Montpellier, 80, avenue Augustin-Fliche, 34295 Montpellier cedex 5, France.
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14
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Blanc F, Merklen F, Blanchet C, Mondain M, Akkari M. Respiratory polygraphy in children: Feasibility in everyday practice in an ENT department and value of automatic detection of respiratory events. Eur Ann Otorhinolaryngol Head Neck Dis 2019; 136:235-240. [DOI: 10.1016/j.anorl.2019.03.001] [Citation(s) in RCA: 2] [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: 10/27/2022]
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15
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Truffert E, Fournier Charrière E, Treluyer JM, Blanchet C, Cohen R, Gardini B, Haas H, Liard F, Montastruc JL, Nicollas R, Pondaven S, Stahl JP, Wood C, Couloigner V. Guidelines of the French Society of Otorhinolaryngology (SFORL): Nonsteroidal anti-inflammatory drugs (NSAIDs) and pediatric ENT infections. Short version. Eur Ann Otorhinolaryngol Head Neck Dis 2019; 136:289-294. [PMID: 31420238 DOI: 10.1016/j.anorl.2019.04.001] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To present the guidelines of the French Society of Otolaryngology-Head and Neck Surgery concerning the use of non-steroidal anti-inflammatory drugs (NSAIDs) in pediatric ENT infections. METHODS Based on a critical analysis of the medical literature up to November 2016, a multidisciplinary workgroup of 11 practitioners wrote clinical practice guidelines. Levels of evidence were classified according to the GRADE (Grades of Recommendation, Assessment, Development and Evaluation) system: GRADE A, B, C or "expert opinion". The first version of the text was reworked by the workgroup following comments by the 22 members of the reading group. RESULTS The main recommendations are: NSAIDs are indicated at analgesic doses (e.g. 20-30 mg/kg/day for ibuprofen) in combination with paracetamol (acetaminophen) in uncomplicated pediatric ENT infections (acute otitis media, tonsillitis, upper respiratory infections, and maxillary sinusitis) if: o pain is of medium intensity (visual analogue scale (VAS) score 3-5 or "Evaluation Enfant Douleur" (EVENDOL) child pain score 4-7) and insufficiently relieved by first-line paracetamol (residual VAS≥3 or EVENDOL≥4); o pain is moderate to intense (VAS 5-7 or EVENDOL 7-10). When combined, paracetamol and ibuprofen are ideally taken simultaneously every 6h. It is recommended: (1) o not to prescribe NSAIDs in severe or complicated pediatric ENT infections; (2) o to suspend NSAIDs treatment in case of unusual clinical presentation of the infection (duration or symptoms); (3) o not to prescribe NSAIDs for more than 72h.
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Affiliation(s)
- E Truffert
- Service d'ORL, hôpital Necker-Enfants-Malades, AP-HP, 75015 Paris, France
| | - E Fournier Charrière
- CETD, service de pédiatrie, groupe Pédiadol, CHU Bicêtre, AP-HP, 94270 Le Kremlin-Bicêtre, France
| | - J-M Treluyer
- Centre d'investigation clinique, hôpital Necker-Enfants-Malades, AP-HP, 75015 Paris, France
| | - C Blanchet
- Service d'ORL, hôpital-Gui de-Chauliac, CHU de Montpellier, 34295 Montpellier, France
| | - R Cohen
- Service de pédiatre, centre hospitalier intercommunal de Créteil, 94000 Créteil, France
| | - B Gardini
- Clinique Sarrus-Teinturiers, 31300 Toulouse, France
| | - H Haas
- Service des urgences, hôpital CHU Lenval, 06200 Nice, France
| | | | - J-L Montastruc
- Service de pharmacologie clinique, hôpital La Grave, CHU de Toulouse, 31300 Toulouse, France
| | - R Nicollas
- Service d'ORL, CHU La Timone, AP-HM, 13005 Marseille, France
| | - S Pondaven
- Service d'ORL, hôpital Clocheville, CHU de Tours, 37000 Tours, France
| | - J-P Stahl
- Service d'infectiologie, CHU de Grenoble, 38700 Grenoble, France
| | - C Wood
- Service d'algologie, CHU Dupuytren, 87000 Limoges, France
| | - V Couloigner
- Service d'ORL, hôpital Necker-Enfants-Malades, AP-HP, 75015 Paris, France.
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16
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Ison J, Ienasescu H, Chmura P, Rydza E, Ménager H, Kalaš M, Schwämmle V, Grüning B, Beard N, Lopez R, Duvaud S, Stockinger H, Persson B, Vařeková RS, Raček T, Vondrášek J, Peterson H, Salumets A, Jonassen I, Hooft R, Nyrönen T, Valencia A, Capella S, Gelpí J, Zambelli F, Savakis B, Leskošek B, Rapacki K, Blanchet C, Jimenez R, Oliveira A, Vriend G, Collin O, van Helden J, Løngreen P, Brunak S. The bio.tools registry of software tools and data resources for the life sciences. Genome Biol 2019; 20:164. [PMID: 31405382 PMCID: PMC6691543 DOI: 10.1186/s13059-019-1772-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 07/22/2019] [Indexed: 11/28/2022] Open
Abstract
Bioinformaticians and biologists rely increasingly upon workflows for the flexible utilization of the many life science tools that are needed to optimally convert data into knowledge. We outline a pan-European enterprise to provide a catalogue ( https://bio.tools ) of tools and databases that can be used in these workflows. bio.tools not only lists where to find resources, but also provides a wide variety of practical information.
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Affiliation(s)
- Jon Ison
- National Life Science Supercomputing Center, Technical University of Denmark, Building 208, DK-2800, Kongens Lyngby, Denmark.
| | - Hans Ienasescu
- National Life Science Supercomputing Center, Technical University of Denmark, Building 208, DK-2800, Kongens Lyngby, Denmark
| | - Piotr Chmura
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200, Copenhagen, Denmark
| | - Emil Rydza
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200, Copenhagen, Denmark
| | - Hervé Ménager
- Hub de Bioinformatique et de Biostatistiques, Institut Pasteur, C3BI USR, 3756 IP CNRS, Paris, France
| | - Matúš Kalaš
- Computational Biology Unit, Department of Informatics, University of Bergen, N-5020, Bergen, Norway
| | - Veit Schwämmle
- Department of Biochemistry and Molecular Biology and VILLUM Center for Bioanalytical Sciences, University of Southern Denmark, Campusvej 55, 5230, Odense, Denmark
| | - Björn Grüning
- Department of Computer Science, Albert-Ludwigs-University Freiburg, Georges-Köhler-Allee 106, 79110, Freiburg, Germany
| | - Niall Beard
- School of Computer Science, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Rodrigo Lopez
- The EMBL-European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, CB10 1SD, UK
| | - Severine Duvaud
- SIB Swiss Institute of Bioinformatics, Quartier Sorge - Batiment Amphipole, CH-1015, Lausanne, Switzerland
| | - Heinz Stockinger
- SIB Swiss Institute of Bioinformatics, Quartier Sorge - Batiment Amphipole, CH-1015, Lausanne, Switzerland
| | - Bengt Persson
- Bioinformatics Infrastructure for Life Sciences, Science for Life Laboratory, Dept of Cell and Molecular Biology, Uppsala University, S-75124, Uppsala, Sweden
| | - Radka Svobodová Vařeková
- CEITEC - Central European Institute of Technology, Masaryk University Brno, Kamenice 5, 625 00, Brno-Bohunice, Czech Republic
| | - Tomáš Raček
- CEITEC - Central European Institute of Technology, Masaryk University Brno, Kamenice 5, 625 00, Brno-Bohunice, Czech Republic
| | - Jiří Vondrášek
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo namesti 2, 160 00, Prague, Czech Republic
| | - Hedi Peterson
- ELIXIR-EE, Institute of Computer Science, University of Tartu. J Liivi 2, Tartu, Estonia
| | - Ahto Salumets
- ELIXIR-EE, Institute of Computer Science, University of Tartu. J Liivi 2, Tartu, Estonia
| | - Inge Jonassen
- Computational Biology Unit, Department of Informatics, University of Bergen, N-5020, Bergen, Norway
| | - Rob Hooft
- Dutch Techcentre for Life Sciences, Jaarbeursplein 6, 3521, AL, Utrecht, The Netherlands
| | - Tommi Nyrönen
- CSC - IT Center for Science, PO BOX 405, FI-02101, Espoo, Finland
| | - Alfonso Valencia
- Barcelona Supercomputing Centre (BSC), 08034, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Pg. Lluıs Companys 23, 08010, Barcelona, Spain
| | | | - Josep Gelpí
- Barcelona Supercomputing Centre (BSC), 08034, Barcelona, Spain
- Department of Biochemistry and Molecular Biomedicine, University of Barcelona, INB / BSC-CNS, Barcelona, Spain
| | - Federico Zambelli
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, National Research Council (CNR), via Amendola 165/A, Bari, Italy
- Department of Biosciences, University of Milano, Via Celoria 26, Milan, Italy
| | - Babis Savakis
- Biomedical Sciences Research Centre, Alexander Fleming 34 Al. Fleming Str, 16672, Vari, Greece
| | - Brane Leskošek
- Faculty of Medicine / ELIXIR-SI, University of Ljubljana, Vrazov trg 2, SI-1000, Ljubljana, Slovenia
| | - Kristoffer Rapacki
- National Life Science Supercomputing Center, Technical University of Denmark, Building 208, DK-2800, Kongens Lyngby, Denmark
| | - Christophe Blanchet
- CNRS, UMS 3601, Institut Français de Bioinformatique, IFB-core, 2 rue Gaston Crémieux, F-91000, Evry, France
| | - Rafael Jimenez
- ELIXIR-Hub, Wellcome Trust Genome Campus, Hinxton, Cambridge, CB10 1SD, UK
| | - Arlindo Oliveira
- INESC-ID / Instituto Superior Técnico, R. Alves Redol 9, Lisbon, Portugal
| | - Gert Vriend
- Radboud University Medical Centre, CMBI, Postbus 9101, 6500 HB, Nijmegen, Netherlands
| | - Olivier Collin
- Plateforme GenOuest Univ Rennes, Inria, CNRS, IRISA, F-35000, Rennes, France
| | - Jacques van Helden
- Aix-Marseille Univ, INSERM, lab. Theory and Approaches of Genome Complexity (TAGC), Marseille, France
| | - Peter Løngreen
- National Life Science Supercomputing Center, Technical University of Denmark, Building 208, DK-2800, Kongens Lyngby, Denmark
| | - Søren Brunak
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200, Copenhagen, Denmark
- Department of Bio and Health Informatics, Technical University of Denmark, Building 208, DK-2800, Kongens Lyngby, Denmark
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17
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Hermann R, Lescanne E, Loundon N, Barone P, Belmin J, Blanchet C, Borel S, Charpiot A, Coez A, Deguine O, Farinetti A, Godey B, Lazard D, Marx M, Mosnier I, Nguyen Y, Teissier N, Virole M, Roman S, Truy E. French Society of ENT (SFORL) guidelines. Indications for cochlear implantation in adults. Eur Ann Otorhinolaryngol Head Neck Dis 2019; 136:193-197. [DOI: 10.1016/j.anorl.2019.04.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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18
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Casteil L, Viquesnel A, Favier V, Guignard N, Blanchet C, Mondain M. Study of the efficacy of melatonin for auditory brainstem response (ABR) testing in children. Eur Ann Otorhinolaryngol Head Neck Dis 2017; 134:373-375. [DOI: 10.1016/j.anorl.2017.03.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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19
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Baux D, Vaché C, Blanchet C, Willems M, Baudoin C, Moclyn M, Faugère V, Touraine R, Isidor B, Dupin-Deguine D, Nizon M, Vincent M, Mercier S, Calais C, García-García G, Azher Z, Lambert L, Perdomo-Trujillo Y, Giuliano F, Claustres M, Koenig M, Mondain M, Roux AF. Combined genetic approaches yield a 48% diagnostic rate in a large cohort of French hearing-impaired patients. Sci Rep 2017; 7:16783. [PMID: 29196752 PMCID: PMC5711943 DOI: 10.1038/s41598-017-16846-9] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [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: 09/12/2017] [Accepted: 11/17/2017] [Indexed: 11/22/2022] Open
Abstract
Hearing loss is the most common sensory disorder and because of its high genetic heterogeneity, implementation of Massively Parallel Sequencing (MPS) in diagnostic laboratories is greatly improving the possibilities of offering optimal care to patients. We present the results of a two-year period of molecular diagnosis that included 207 French families referred for non-syndromic hearing loss. Our multi-step strategy involved (i) DFNB1 locus analysis, (ii) MPS of 74 genes, and (iii) additional approaches including Copy Number Variations, in silico analyses, minigene studies coupled when appropriate with complete gene sequencing, and a specific assay for STRC. This comprehensive screening yielded an overall diagnostic rate of 48%, equally distributed between DFNB1 (24%) and the other genes (24%). Pathogenic genotypes were identified in 19 different genes, with a high prevalence of GJB2, STRC, MYO15A, OTOF, TMC1, MYO7A and USH2A. Involvement of an Usher gene was reported in 16% of the genotyped cohort. Four de novo variants were identified. This study highlights the need to develop several molecular approaches for efficient molecular diagnosis of hearing loss, as this is crucial for genetic counselling, audiological rehabilitation and the detection of syndromic forms.
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Affiliation(s)
- D Baux
- Laboratoire de Génétique Moléculaire, CHU Montpellier, Montpellier, France
| | - C Vaché
- Laboratoire de Génétique Moléculaire, CHU Montpellier, Montpellier, France
| | - C Blanchet
- Service ORL, CHU Montpellier, Montpellier, France.,Centre National de Référence Maladies Rares "Affections Sensorielles Génétiques", CHU Montpellier, Montpellier, France
| | - M Willems
- Génétique Médicale, CHU Montpellier, Montpellier, France
| | - C Baudoin
- Laboratoire de Génétique Moléculaire, CHU Montpellier, Montpellier, France
| | - M Moclyn
- Laboratoire de Génétique Moléculaire, CHU Montpellier, Montpellier, France
| | - V Faugère
- Laboratoire de Génétique Moléculaire, CHU Montpellier, Montpellier, France
| | - R Touraine
- Service de Génétique, CHU-Hôpital Nord, Saint-Etienne, France
| | - B Isidor
- Service de Génétique Médicale, CHU Nantes, Nantes, France
| | - D Dupin-Deguine
- Service de Génétique Médicale, CHU Toulouse, Toulouse, France.,Service d'ORL, Otoneurologie et ORL pédiatrique CHU Toulouse, Toulouse, France
| | - M Nizon
- Service de Génétique Médicale, CHU Nantes, Nantes, France
| | - M Vincent
- Service de Génétique Médicale, CHU Nantes, Nantes, France
| | - S Mercier
- Service de Génétique Médicale, CHU Nantes, Nantes, France
| | - C Calais
- Service d'ORL, CHU Nantes, Nantes, France
| | - G García-García
- Laboratoire de Génétique de Maladies Rares (LGMR) EA7402, Université de Montpellier, Montpellier, France
| | - Z Azher
- Laboratoire de Génétique de Maladies Rares (LGMR) EA7402, Université de Montpellier, Montpellier, France
| | - L Lambert
- Génétique Médicale, Centre de Compétence des Surdités Génétiques, site constitutif du Centre de Référence des Anomalies du Développement et Syndromes Malformatifs de l'Est, CHRU Nancy, Nancy, France
| | - Y Perdomo-Trujillo
- Service de Génétique Médicale, Centre de Référence pour les Affections Rares en Génétique Ophtalmologique (CARGO), Hôpital Civil, Strasbourg, France
| | - F Giuliano
- Service de Génétique Médicale, CHU Nice, Nice, France
| | - M Claustres
- Laboratoire de Génétique Moléculaire, CHU Montpellier, Montpellier, France.,Laboratoire de Génétique de Maladies Rares (LGMR) EA7402, Université de Montpellier, Montpellier, France
| | - M Koenig
- Laboratoire de Génétique Moléculaire, CHU Montpellier, Montpellier, France.,Laboratoire de Génétique de Maladies Rares (LGMR) EA7402, Université de Montpellier, Montpellier, France
| | - M Mondain
- Service ORL, CHU Montpellier, Montpellier, France.,Centre National de Référence Maladies Rares "Affections Sensorielles Génétiques", CHU Montpellier, Montpellier, France
| | - A F Roux
- Laboratoire de Génétique Moléculaire, CHU Montpellier, Montpellier, France. .,Laboratoire de Génétique de Maladies Rares (LGMR) EA7402, Université de Montpellier, Montpellier, France.
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20
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Côté S, Dodin S, Blanchet C, Mulvad G, Pedersen HS, Blanchet C, Holub BJ, Dewailly E. Very high concentrations of n-3 fatty acids in peri-and postmenopausal Inuit women from Greenland. Int J Circumpolar Health 2016; 63 Suppl 2:298-301. [PMID: 15736672 DOI: 10.3402/ijch.v63i0.17923] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES The objectives of this study were to examine the profile of relative concentrations in plasma phospholipids of n-3 fatty acids among peri- and postmenopausal Inuit women living in Greenland and to verify their relationships with ischemic heart disease risk factors and more particularly, with concentrations of plasma triacylglycerols. STUDY DESIGN This study was part of a survey conducted in 2000, which aimed to assess the prevalence of osteoporosis and the associated risk factors among peri- and postmenopausal Greenland Inuit women. METHODS The study population consisted of 153 women aged 49-69 years (mean +/- SD: 55.3 +/- 4.4 y) randomly selected. Data were obtained through an interview (questionnaire on lifestyle habits, medical history etc) and a clinical session (physiologic and anthropologic measurements). Plasma samples were used to measure the fatty acid composition of plasma phospholipids. RESULTS The mean body mass index of women was 27.9 +/- 6.1. Seventy-five percent were smokers and 9% were currently on hormone replacement therapy. Relative concentrations of total n-3 fatty acids were very high (13.8%, 95% CI: 13.1-14.6), with docosahexanoic and eicosapentanoic acids accounting for 4.7% and 7.2%, respectively. The ratio of n-3:n-6 fatty acids was 0.67. n-3 fatty acids were inversely correlated to triacylglycerols. CONCLUSION These data show that peri- and post-menopausal Greenland Inuit women have very high plasma concentrations of n-3 fatty acids that protect them from ischemic heart disease.
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Affiliation(s)
- S Côté
- Public Health Research Unit, CHUL Research Center, Centre Hospitalier Universitaire de Québec, Ste-Foy, Canada
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21
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Viana da Silva S, Haberl MG, Zhang P, Bethge P, Lemos C, Gonçalves N, Gorlewicz A, Malezieux M, Gonçalves FQ, Grosjean N, Blanchet C, Frick A, Nägerl UV, Cunha RA, Mulle C. Early synaptic deficits in the APP/PS1 mouse model of Alzheimer's disease involve neuronal adenosine A2A receptors. Nat Commun 2016; 7:11915. [PMID: 27312972 PMCID: PMC4915032 DOI: 10.1038/ncomms11915] [Citation(s) in RCA: 163] [Impact Index Per Article: 20.4] [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: 02/29/2016] [Accepted: 05/12/2016] [Indexed: 01/24/2023] Open
Abstract
Synaptic plasticity in the autoassociative network of recurrent connections among hippocampal CA3 pyramidal cells is thought to enable the storage of episodic memory. Impaired episodic memory is an early manifestation of cognitive deficits in Alzheimer's disease (AD). In the APP/PS1 mouse model of AD amyloidosis, we show that associative long-term synaptic potentiation (LTP) is abolished in CA3 pyramidal cells at an early stage. This is caused by activation of upregulated neuronal adenosine A2A receptors (A2AR) rather than by dysregulation of NMDAR signalling or altered dendritic spine morphology. Neutralization of A2AR by acute pharmacological inhibition, or downregulation driven by shRNA interference in a single postsynaptic neuron restore associative CA3 LTP. Accordingly, treatment with A2AR antagonists reverts one-trial memory deficits. These results provide mechanistic support to encourage testing the therapeutic efficacy of A2AR antagonists in early AD patients.
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MESH Headings
- Adenosine A2 Receptor Antagonists/pharmacology
- Alzheimer Disease/drug therapy
- Alzheimer Disease/genetics
- Alzheimer Disease/metabolism
- Alzheimer Disease/physiopathology
- Amyloid beta-Protein Precursor/genetics
- Amyloid beta-Protein Precursor/metabolism
- Animals
- CA3 Region, Hippocampal/drug effects
- CA3 Region, Hippocampal/metabolism
- CA3 Region, Hippocampal/pathology
- Dendritic Spines/drug effects
- Dendritic Spines/metabolism
- Dendritic Spines/ultrastructure
- Disease Models, Animal
- Gene Expression Regulation
- Humans
- Long-Term Potentiation
- Memory, Episodic
- Mice
- Mice, Transgenic
- Neuroprotective Agents/pharmacology
- Presenilin-1/genetics
- Presenilin-1/metabolism
- Pyrimidines/pharmacology
- RNA, Small Interfering/genetics
- RNA, Small Interfering/metabolism
- Receptor, Adenosine A2A/genetics
- Receptor, Adenosine A2A/metabolism
- Receptors, N-Methyl-D-Aspartate/antagonists & inhibitors
- Receptors, N-Methyl-D-Aspartate/genetics
- Receptors, N-Methyl-D-Aspartate/metabolism
- Signal Transduction
- Synapses/drug effects
- Synapses/metabolism
- Synapses/ultrastructure
- Triazines/pharmacology
- Triazoles/pharmacology
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Affiliation(s)
- Silvia Viana da Silva
- Interdisciplinary Institute for Neuroscience, University of Bordeaux, CNRS UMR 5297, F-33000 Bordeaux, France
- BEB PhD program CNC Coimbra, 3004-517 Coimbra, Portugal
| | | | - Pei Zhang
- Interdisciplinary Institute for Neuroscience, University of Bordeaux, CNRS UMR 5297, F-33000 Bordeaux, France
| | - Philipp Bethge
- Interdisciplinary Institute for Neuroscience, University of Bordeaux, CNRS UMR 5297, F-33000 Bordeaux, France
| | - Cristina Lemos
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal
| | - Nélio Gonçalves
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal
| | - Adam Gorlewicz
- Interdisciplinary Institute for Neuroscience, University of Bordeaux, CNRS UMR 5297, F-33000 Bordeaux, France
| | - Meryl Malezieux
- Interdisciplinary Institute for Neuroscience, University of Bordeaux, CNRS UMR 5297, F-33000 Bordeaux, France
| | - Francisco Q. Gonçalves
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal
| | - Noëlle Grosjean
- Interdisciplinary Institute for Neuroscience, University of Bordeaux, CNRS UMR 5297, F-33000 Bordeaux, France
| | - Christophe Blanchet
- Interdisciplinary Institute for Neuroscience, University of Bordeaux, CNRS UMR 5297, F-33000 Bordeaux, France
| | - Andreas Frick
- University of Bordeaux, Neurocentre Magendie, INSERM U862, F-33000 Bordeaux, France
| | - U Valentin Nägerl
- Interdisciplinary Institute for Neuroscience, University of Bordeaux, CNRS UMR 5297, F-33000 Bordeaux, France
| | - Rodrigo A. Cunha
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal
- Faculty of Medicine, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Christophe Mulle
- Interdisciplinary Institute for Neuroscience, University of Bordeaux, CNRS UMR 5297, F-33000 Bordeaux, France
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Liratni M, Blanchet C, Pry R. Évolution symptomatologique et adaptative de 7 enfants avec troubles autistiques sans retard mental après 30 séances de groupe d’entraînement aux habiletés sociales. PRAT PSYCHOL 2016. [DOI: 10.1016/j.prps.2015.04.001] [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: 10/23/2022]
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23
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Molly D, Bertaut A, Blanchet C, Beltjens F, Charon-Barra C, Loustalot C, Desmoulins I, Arnould L. Abstract P1-01-14: Do estrogen receptor negative and progesterone receptor positive breast tumors really exist? Attitude for not making them real. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p1-01-14] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Breast tumors with negative estrogen receptor (ER-) and positive progesterone receptor (PR+) are rare (from 0 to 3.4 % according to the studies), and their existence is contested. These markers determine cancer molecular subtypes which play a determinant role for both the management and the prognosis of breast cancers. It is then essential to document the real existence of ER-/PR+ tumors. The present study aimed at determining if ER-/PR+ tumors share more basal or luminal characteristics.
Methods: Between 2000 and 2015, 50 patients with ER-/PR+ breast tumors, representing 0.6 % of all breast cancers diagnosed in our institution, were included in this study. Their clinical (age, node status), morphological (size, histological type, Elston and Ellis (EE) grade, necrosis, inflammation, pushing margins, central scar, mitotic index) and immunohistochemical characteristics (ER, PR, HER2, CK5/6 and EGFR status) were compared with those of 50 luminal and 50 triple negative (TN) tumors randomly selected in our lab database. At the time this abstract is written, the Ki67 index determination is still in progress. Five of these ER-/PR+ tumors were also given a molecular test (Nanostring). Qualitative variables were compared using Chi2 or Fisher test, quantitative variables were compared using Student or Mann & Whitney tests. To take into account for multiple comparisons, p-values less than 0.025 were considered as significant.
Results: The results are summarized in table 1. For almost all the analyzed criteria, ER-/PR+ tumors present statistical difference with luminal ones. On the contrary, they share most of TN tumors characteristics. The 5 molecular analyzes performed on ER-/PR+ samples showed the following phenotypes: 3 basal, 1 HER2 enriched and 1 luminal. For this last one, new immunohistological analyzes reveal in fact an ER+ staining.
Table 1: Study results ER-/PR+ tumorsER+ tumorsTN tumorsp ER-/PR+ vs ER+p ER-/PR+ vs TNSize (mm)23.12525.20.00440.4822Histological type0.00120.2424 ductal9480.4100 lobular219.60 neuro-endocrine40 Differentiation<10-40.4497 well09.80 moderately12.548.818 poorly87.541.582 EE grade<10-40.1016 14.135.34 236.74918 359.215.778 EE differentiation<10-40.3197 105.90 214.341.222 385.752.978 EE nuclear atypia<10-40.2227 102 234.774.522 365.325.576 EE mitosis<10-40.0123 124.580.418 230.613.710 344.95.972 Mitotic index (mitoses/mm2)9.52.210.2<10-40.1252Necrosis465.952<10-40.5484Inflammation0.00030.0011 yes30224 no4474.516 weak2623.560 CK5/6 +78.74.280.4<10-40.8378EGFR +44.74.252.2<10-40.4697HER2 +29.87.800.0051<10-4Results are given in %, excepting mitotic index and size
Conclusion: This study tends to support that ER-/PR+ tumors may not exist and are likely to be TN cancers or less frequently false negative ER+ tumors. In a practical point of view, we think that 1) when a tumor shows ER-/PR+ and TN characteristics, it is probably a false positive PR staining, and the tumor has to be considered as a TN one, 2) when an ER-/PR+ tumor don't fit the triple negative tumors characteristics, ER must be retested in order to exclude a true luminal tumor.
Citation Format: Molly D, Bertaut A, Blanchet C, Beltjens F, Charon-Barra C, Loustalot C, Desmoulins I, Arnould L. Do estrogen receptor negative and progesterone receptor positive breast tumors really exist? Attitude for not making them real. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P1-01-14.
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Affiliation(s)
- D Molly
- GF Leclerc Cancer Center, Dijon, France
| | - A Bertaut
- GF Leclerc Cancer Center, Dijon, France
| | | | | | | | | | | | - L Arnould
- GF Leclerc Cancer Center, Dijon, France
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Abstract
Linux container technologies, as represented by Docker, provide an alternative to complex and time-consuming installation processes needed for scientific software. The ease of deployment and the process isolation they enable, as well as the reproducibility they permit across environments and versions, are among the qualities that make them interesting candidates for the construction of bioinformatic infrastructures, at any scale from single workstations to high throughput computing architectures. The Docker Hub is a public registry which can be used to distribute bioinformatic software as Docker images. However, its lack of curation and its genericity make it difficult for a bioinformatics user to find the most appropriate images needed. BioShaDock is a bioinformatics-focused Docker registry, which provides a local and fully controlled environment to build and publish bioinformatic software as portable Docker images. It provides a number of improvements over the base Docker registry on authentication and permissions management, that enable its integration in existing bioinformatic infrastructures such as computing platforms. The metadata associated with the registered images are domain-centric, including for instance concepts defined in the EDAM ontology, a shared and structured vocabulary of commonly used terms in bioinformatics. The registry also includes user defined tags to facilitate its discovery, as well as a link to the tool description in the ELIXIR registry if it already exists. If it does not, the BioShaDock registry will synchronize with the registry to create a new description in the Elixir registry, based on the BioShaDock entry metadata. This link will help users get more information on the tool such as its EDAM operations, input and output types. This allows integration with the ELIXIR Tools and Data Services Registry, thus providing the appropriate visibility of such images to the bioinformatics community.
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Affiliation(s)
| | - Olivier Sallou
- Genouest Bioinformatics Facility, University of Rennes 1/IRISA, Rennes, France
| | - Hervé Ménager
- Centre d'Informatique pour la Biologie, C3BI, Institut Pasteur, Paris, France
| | - Yvan Le Bras
- Genouest Bioinformatics Facility, University of Rennes 1/IRISA, Rennes, France
| | - Cyril Monjeaud
- Genouest Bioinformatics Facility, University of Rennes 1/IRISA, Rennes, France
| | - Christophe Blanchet
- Genouest Bioinformatics Facility, University of Rennes 1/IRISA, Rennes, France
| | - Olivier Collin
- French Institute of Bioinformatics, CNRS IFB-Core, Gif-sur-Yvette, France
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25
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Duarte AMS, Psomopoulos FE, Blanchet C, Bonvin AMJJ, Corpas M, Franc A, Jimenez RC, de Lucas JM, Nyrönen T, Sipos G, Suhr SB. Future opportunities and trends for e-infrastructures and life sciences: going beyond the grid to enable life science data analysis. Front Genet 2015; 6:197. [PMID: 26157454 PMCID: PMC4477178 DOI: 10.3389/fgene.2015.00197] [Citation(s) in RCA: 8] [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: 12/22/2014] [Accepted: 05/18/2015] [Indexed: 11/13/2022] Open
Abstract
With the increasingly rapid growth of data in life sciences we are witnessing a major transition in the way research is conducted, from hypothesis-driven studies to data-driven simulations of whole systems. Such approaches necessitate the use of large-scale computational resources and e-infrastructures, such as the European Grid Infrastructure (EGI). EGI, one of key the enablers of the digital European Research Area, is a federation of resource providers set up to deliver sustainable, integrated and secure computing services to European researchers and their international partners. Here we aim to provide the state of the art of Grid/Cloud computing in EU research as viewed from within the field of life sciences, focusing on key infrastructures and projects within the life sciences community. Rather than focusing purely on the technical aspects underlying the currently provided solutions, we outline the design aspects and key characteristics that can be identified across major research approaches. Overall, we aim to provide significant insights into the road ahead by establishing ever-strengthening connections between EGI as a whole and the life sciences community.
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Affiliation(s)
- Afonso M S Duarte
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras Portugal
| | - Fotis E Psomopoulos
- Department of Electrical and Computer Engineering, Aristotle University of Thessaloniki, Thessaloniki Greece ; Center for Research and Technology Hellas, Thessaloniki Greece
| | - Christophe Blanchet
- CNRS, UMS 3601 - Institut Français de Bioinformatique, IFB-core, Gif-sur-Yvette France
| | - Alexandre M J J Bonvin
- Bijvoet Center for Biomolecular Research, Faculty of Science, Utrecht University, Utrecht Netherlands
| | - Manuel Corpas
- The Genome Analysis Centre, Norwich Research Park, Norwich UK
| | - Alain Franc
- Institut National de Recherche Agronomique, UMR BIOGECO 1202, Cestas France
| | | | - Jesus M de Lucas
- Instituto de Física de Cantabria, Consejo Superior de Investigaciones Científicas - Universidad de Cantabria, Santander Spain
| | | | | | - Stephanie B Suhr
- European Molecular Biology Laboratory - European Bioinformatics Institute, Wellcome Trust Genome Campus, Cambridge UK
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26
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Medina-Rivera A, Defrance M, Sand O, Herrmann C, Castro-Mondragon JA, Delerce J, Jaeger S, Blanchet C, Vincens P, Caron C, Staines DM, Contreras-Moreira B, Artufel M, Charbonnier-Khamvongsa L, Hernandez C, Thieffry D, Thomas-Chollier M, van Helden J. RSAT 2015: Regulatory Sequence Analysis Tools. Nucleic Acids Res 2015; 43:W50-6. [PMID: 25904632 PMCID: PMC4489296 DOI: 10.1093/nar/gkv362] [Citation(s) in RCA: 188] [Impact Index Per Article: 20.9] [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: 02/06/2015] [Accepted: 04/07/2015] [Indexed: 11/13/2022] Open
Abstract
RSAT (Regulatory Sequence Analysis Tools) is a modular software suite for the analysis of cis-regulatory elements in genome sequences. Its main applications are (i) motif discovery, appropriate to genome-wide data sets like ChIP-seq, (ii) transcription factor binding motif analysis (quality assessment, comparisons and clustering), (iii) comparative genomics and (iv) analysis of regulatory variations. Nine new programs have been added to the 43 described in the 2011 NAR Web Software Issue, including a tool to extract sequences from a list of coordinates (fetch-sequences from UCSC), novel programs dedicated to the analysis of regulatory variants from GWAS or population genomics (retrieve-variation-seq and variation-scan), a program to cluster motifs and visualize the similarities as trees (matrix-clustering). To deal with the drastic increase of sequenced genomes, RSAT public sites have been reorganized into taxon-specific servers. The suite is well-documented with tutorials and published protocols. The software suite is available through Web sites, SOAP/WSDL Web services, virtual machines and stand-alone programs at http://www.rsat.eu/.
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Affiliation(s)
| | - Matthieu Defrance
- Laboratory of Cancer Epigenetics, Université Libre de Bruxelles, Route de Lennik 808, 1070 Brussels, Belgium
| | - Olivier Sand
- CNRS-UMR8199 Institut de Biologie de Lille, Génomique Intégrative et Modélisation des Maladies Métaboliques, 1, rue du Pr Calmette, 59000 Lille, France European Genomic Institute for Diabetes (EGID), F-3508, 59000 Lille, France
| | - Carl Herrmann
- UMR_S 1090 TAGC, INSERM, Marseille, France; Aix-Marseille Université, Marseille, France Institute of Pharmacy and Molecular Biotechnology, and Bioquant Center, University of Heidelberg, Im Neuenheimer Feld 267, Heidelberg 69120, Germany Division of Theoretical Bioinformatics, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, Heidelberg 69120, Germany
| | | | - Jeremy Delerce
- UMR_S 1090 TAGC, INSERM, Marseille, France; Aix-Marseille Université, Marseille, France
| | - Sébastien Jaeger
- Centre d'Immunologie de Marseille-Luminy (CIML), Aix-Marseille University, UM2, Marseille, France Institut National de la Santé et de la Recherche Médicale (Inserm), U1104, Marseille, France Centre National de la Recherche Scientifique (CNRS), UMR7280, Marseille, France
| | - Christophe Blanchet
- CNRS, UMS 3601, Institut Français de Bioinformatique, IFB-core, Avenue de la Terrasse, F-91190 Gif-sur-Yvette, France
| | - Pierre Vincens
- Ecole Normale Supérieure, Institut de Biologie de l'ENS, IBENS, Paris, F-75005, France Inserm, U1024, Paris, F-75005, France CNRS, UMR 8197, Paris, F-75005, France
| | - Christophe Caron
- Station Biologique/Service Informatique et Bio-informatique, Place Georges Teissier - CS 90074, 29688 Roscoff Cedex, France
| | - Daniel M Staines
- European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Wellcome Trust Genome Campus, Hinxton, Cambridge CB10 1SD, UK
| | - Bruno Contreras-Moreira
- Estación Experimental de Aula Dei/CSIC, Av. Montañana 1.005, 50059 Zaragoza, Spain Fundación ARAID, calle María de Luna 11, 50018 Zaragoza, Spain
| | - Marie Artufel
- UMR_S 1090 TAGC, INSERM, Marseille, France; Aix-Marseille Université, Marseille, France
| | | | - Céline Hernandez
- Ecole Normale Supérieure, Institut de Biologie de l'ENS, IBENS, Paris, F-75005, France Inserm, U1024, Paris, F-75005, France CNRS, UMR 8197, Paris, F-75005, France
| | - Denis Thieffry
- Ecole Normale Supérieure, Institut de Biologie de l'ENS, IBENS, Paris, F-75005, France Inserm, U1024, Paris, F-75005, France CNRS, UMR 8197, Paris, F-75005, France
| | - Morgane Thomas-Chollier
- Ecole Normale Supérieure, Institut de Biologie de l'ENS, IBENS, Paris, F-75005, France Inserm, U1024, Paris, F-75005, France CNRS, UMR 8197, Paris, F-75005, France
| | - Jacques van Helden
- European Genomic Institute for Diabetes (EGID), F-3508, 59000 Lille, France Laboratoire de Bioinformatique des Génomes et des Réseaux (BiGRe), Université Libre de Bruxelles, Campus Plaine, CP 263, Bld du Triomphe, B-1050 Bruxelles, Belgium
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Jeziorski E, Dereure J, Mac Bullen G, Blanchet C, Ludwig C, Costes V, Rodière M. Mucosal relapse of visceral leishmaniasis in a child treated with anti-TNFα. Int J Infect Dis 2015; 33:135-6. [PMID: 25572168 DOI: 10.1016/j.ijid.2014.12.036] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 12/15/2014] [Accepted: 12/17/2014] [Indexed: 10/24/2022] Open
Abstract
Visceral leishmaniasis is an enzootic parasitosis present across the Mediterranean Basin. Some consider it an opportunistic parasite. We report the case of a girl treated with anti-tumour necrosis factor alpha (anti-TNFα) for juvenile idiopathic arthritis who had previously presented with visceral leishmaniasis. Two and a half years later, she presented a tumour-like mass in the nasal mucous membrane caused by Leishmania parasites. Leishmania infantum is classically responsible for visceral leishmaniasis, but pure mucocutaneous leishmaniasis has also been described. To our knowledge, this is the first observation of a recurrence of visceral leishmaniasis in the mucocutaneous form. The occurrence of atypical forms and presentations in those on anti-TNF therapy should be considered.
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Affiliation(s)
- E Jeziorski
- Centre Hospitalier Régional Universitaire de Montpellier, Hôpital Arnaud de Villeneuve, Service de Pédiatrie Générale et Infectiologie et Immunologie Clinique, 371, avenue du Doyen Gaston Giraud, 34295 Montpellier cedex 5, France; Université Montpellier 1, Faculté de Médecine de Montpellier, Montpellier, France.
| | - J Dereure
- Centre Hospitalier Régional Universitaire de Montpellier, Laboratoire de Parasitologie-Mycologie, Montpellier, France
| | - G Mac Bullen
- Centre Hospitalier Régional Universitaire de Montpellier, Hôpital Lapeyronnie, Service des Urgences Pédiatriques, Montpellier, France
| | - C Blanchet
- Centre Hospitalier Régional Universitaire de Montpellier, Hôpital Gui de Chauliac, Service d'Oto-Rhino-Laryngologie, Montpellier, France
| | - C Ludwig
- Centre Hospitalier Régional Universitaire de Montpellier, Hôpital Arnaud de Villeneuve, Service de Pédiatrie Générale et Infectiologie et Immunologie Clinique, 371, avenue du Doyen Gaston Giraud, 34295 Montpellier cedex 5, France
| | - V Costes
- Centre Hospitalier Régional Universitaire de Montpellier, Hôpital Gui de Chauliac, Service d'Anatomopathologie, Montpellier, France
| | - M Rodière
- Centre Hospitalier Régional Universitaire de Montpellier, Hôpital Arnaud de Villeneuve, Service de Pédiatrie Générale et Infectiologie et Immunologie Clinique, 371, avenue du Doyen Gaston Giraud, 34295 Montpellier cedex 5, France
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Galy-Bernadoy C, Akkari M, Blanchet C, Mondain M. A new case of pediatric laryngeal foraminal cyst: diagnostic challenges and association with hemi-facial microsomia. Int J Pediatr Otorhinolaryngol 2014; 78:2327-9. [PMID: 25468469 DOI: 10.1016/j.ijporl.2014.11.004] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2014] [Revised: 11/01/2014] [Accepted: 11/03/2014] [Indexed: 11/28/2022]
Abstract
Laryngeal cysts are heterogeneous in their clinical presentation and several classifications have been proposed. Here, we report the case of a foraminal laryngeal cyst in a 6 year-old child who also has hemi facial microsomia (HFM). The cyst was treated surgically with laryngotracheal endoscopy followed by cervicotomy. Histological analysis revealed different types of cystic wall epithelium. This case is the first report of a laryngeal cyst associated with HFM in the literature. We discuss the diagnostic challenges of these specific cystic pathologies, and their pathogenesis as part of an oculo-auriculo-vertebral spectrum. Several hypotheses are proposed, based mainly on characterization of their embryological origin.
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Affiliation(s)
- C Galy-Bernadoy
- Service d'ORL et Chirurgie Cervico Faciale, UAM ORL pédiatrique, CHU de Montpellier, Université Montpellier 1, France
| | - M Akkari
- Service d'ORL et Chirurgie Cervico Faciale, UAM ORL pédiatrique, CHU de Montpellier, Université Montpellier 1, France.
| | - C Blanchet
- Service d'ORL et Chirurgie Cervico Faciale, UAM ORL pédiatrique, CHU de Montpellier, Université Montpellier 1, France
| | - M Mondain
- Service d'ORL et Chirurgie Cervico Faciale, UAM ORL pédiatrique, CHU de Montpellier, Université Montpellier 1, France
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Akkari M, Schmitt D, Jeandel C, Raingeard I, Blanchet C, Cartier C, Garrel R, Guerrier B, Makeieff M, Mondain M. Nodular recurrence and hypothyroidism following partial thyroidectomy for benign nodular thyroid disease in children and adolescents. Int J Pediatr Otorhinolaryngol 2014; 78:1742-6. [PMID: 25156198 DOI: 10.1016/j.ijporl.2014.07.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 07/17/2014] [Accepted: 07/31/2014] [Indexed: 12/31/2022]
Abstract
OBJECTIVES Diagnostic and therapeutic processing of a thyroid nodule in children and adolescents may require lobectomy-isthmusectomy (LI) or nodule-resection (NR). Very few data in the literature report the long-term evolution of the remaining thyroid lobe in a defined pediatric population. In this study, we aimed to answer the following questions: Does a nodule recurrence occur in the remainder lobe? Is a post-operative thyroxine treatment necessary? MATERIAL AND METHODS This retrospective study describes 28 patients under 18 who underwent LI (22 cases) or NR (6 cases) from January 2004 to March 2012. Ten of them were lost to follow up, 18 could be assessed (4 NR (22%) and 14 LI (78%) - mean follow-up 45±31 months). All patients benefited of post-operative thyroid ultrasonography, and regular endocrinologic follow-up. The following data were analysed: emergence of new thyroid nodules, evolution of pre-existing nodules, occurrence of post-operative hypothyroidism and requirement for completion thyroidectomy. RESULTS The mean age at the time of surgery was 14.3±1.9 years. Two patients (11%) had pre-existing nodules in the remaining thyroid gland, none of which showed an increase in size after surgery. De novo nodules developed in five patients (27.8%). Three patients who underwent LI (21.4%) needed thyroxine treatment for post-operative hypothyroidism. One patient (5.5%) needed completion thyroidectomy. CONCLUSIONS In this children and adolescents population, after performing LI or NR, remaining thyroid tissue stays free of nodules in 72.2% of the cases. A post-operative thyroxin treatment is necessary in 21.4% of cases after LI.
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Affiliation(s)
- M Akkari
- Service d'ORL et Chirurgie Cervico Faciale, CHU de Montpellier, Université Montpellier 1, Hôpital Gui de Chauliac, 80 avenue Augustin Fliche, 34295 Montpellier Cedex 5, France.
| | - D Schmitt
- Service d'ORL et Chirurgie Cervico Faciale, CHU de Montpellier, Université Montpellier 1, Hôpital Gui de Chauliac, 80 avenue Augustin Fliche, 34295 Montpellier Cedex 5, France
| | - C Jeandel
- Service d'Endocrinologie Pédiatrique, CHU de Montpellier, Université Montpellier 1, Hôpital Arnaud de Villeneuve, 371 avenue du Doyen Gaston Giraud, 34295 Montpellier Cedex 5, France
| | - I Raingeard
- Service des maladies endocriniennes, CHU de Montpellier, Université Montpellier 1, Hôpital Lapeyronie, 371 avenue du Doyen Gaston Giraud, 34295 Montpellier Cedex 5, France
| | - C Blanchet
- Service d'ORL et Chirurgie Cervico Faciale, CHU de Montpellier, Université Montpellier 1, Hôpital Gui de Chauliac, 80 avenue Augustin Fliche, 34295 Montpellier Cedex 5, France
| | - C Cartier
- Service d'ORL et Chirurgie Cervico Faciale, CHU de Montpellier, Université Montpellier 1, Hôpital Gui de Chauliac, 80 avenue Augustin Fliche, 34295 Montpellier Cedex 5, France
| | - R Garrel
- Service d'ORL et Chirurgie Cervico Faciale, CHU de Montpellier, Université Montpellier 1, Hôpital Gui de Chauliac, 80 avenue Augustin Fliche, 34295 Montpellier Cedex 5, France
| | - B Guerrier
- Service d'ORL et Chirurgie Cervico Faciale, CHU de Montpellier, Université Montpellier 1, Hôpital Gui de Chauliac, 80 avenue Augustin Fliche, 34295 Montpellier Cedex 5, France
| | - M Makeieff
- Service d'ORL et Chirurgie Cervico Faciale, CHU de Montpellier, Université Montpellier 1, Hôpital Gui de Chauliac, 80 avenue Augustin Fliche, 34295 Montpellier Cedex 5, France
| | - M Mondain
- Service d'ORL et Chirurgie Cervico Faciale, CHU de Montpellier, Université Montpellier 1, Hôpital Gui de Chauliac, 80 avenue Augustin Fliche, 34295 Montpellier Cedex 5, France
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Blanchet C, Bigorre M, Verdeil M, Daude H, Badr M, Mondain M. SFP P-087 – Consultations multidisciplinaires pour troubles de succion-déglutition chez l’enfant. Arch Pediatr 2014. [DOI: 10.1016/s0929-693x(14)72057-3] [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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Carta M, Lanore F, Rebola N, Szabo Z, Da Silva S, Lourenço J, Verraes A, Nadler A, Schultz C, Blanchet C, Mulle C. Membrane Lipids Tune Synaptic Transmission by Direct Modulation of Presynaptic Potassium Channels. Neuron 2014. [DOI: 10.1016/j.neuron.2014.02.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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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Carta M, Lanore F, Rebola N, Szabo Z, Da Silva SV, Lourenço J, Verraes A, Nadler A, Schultz C, Blanchet C, Mulle C. Membrane lipids tune synaptic transmission by direct modulation of presynaptic potassium channels. Neuron 2014; 81:787-99. [PMID: 24486086 DOI: 10.1016/j.neuron.2013.12.028] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/12/2013] [Indexed: 12/20/2022]
Abstract
Voltage-gated potassium (Kv) channels are involved in action potential (AP) repolarization in excitable cells. Exogenous application of membrane-derived lipids, such as arachidonic acid (AA), regulates the gating of Kv channels. Whether membrane-derived lipids released under physiological conditions have an impact on neuronal coding through this mechanism is unknown. We show that AA released in an activity-dependent manner from postsynaptic hippocampal CA3 pyramidal cells acts as retrograde messenger, inducing a robust facilitation of mossy fiber (Mf) synaptic transmission over several minutes. AA acts by broadening presynaptic APs through the direct modulation of Kv channels. This form of short-term plasticity can be triggered when postsynaptic cell fires with physiologically relevant patterns and sets the threshold for the induction of the presynaptic form of long-term potentiation (LTP) at hippocampal Mf synapses. Hence, direct modulation of presynaptic Kv channels by activity-dependent release of lipids serves as a physiological mechanism for tuning synaptic transmission.
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Affiliation(s)
- Mario Carta
- University of Bordeaux, Interdisciplinary Institute for Neuroscience, CNRS UMR 5297, 33000 Bordeaux, France
| | - Frederic Lanore
- University of Bordeaux, Interdisciplinary Institute for Neuroscience, CNRS UMR 5297, 33000 Bordeaux, France
| | - Nelson Rebola
- University of Bordeaux, Interdisciplinary Institute for Neuroscience, CNRS UMR 5297, 33000 Bordeaux, France
| | - Zsolt Szabo
- University of Bordeaux, Interdisciplinary Institute for Neuroscience, CNRS UMR 5297, 33000 Bordeaux, France
| | - Silvia Viana Da Silva
- University of Bordeaux, Interdisciplinary Institute for Neuroscience, CNRS UMR 5297, 33000 Bordeaux, France
| | - Joana Lourenço
- University of Bordeaux, Interdisciplinary Institute for Neuroscience, CNRS UMR 5297, 33000 Bordeaux, France
| | - Agathe Verraes
- Institut Jacques Monod, UMR 7592, CNRS and INSERM ERL U950, University Paris Diderot, Sorbonne Paris Cité, 75013 Paris, France
| | - André Nadler
- EMBL Heidelberg, Meyerhofstraße 1, 69117 Heidelberg, Germany
| | - Carsten Schultz
- EMBL Heidelberg, Meyerhofstraße 1, 69117 Heidelberg, Germany
| | - Christophe Blanchet
- University of Bordeaux, Interdisciplinary Institute for Neuroscience, CNRS UMR 5297, 33000 Bordeaux, France
| | - Christophe Mulle
- University of Bordeaux, Interdisciplinary Institute for Neuroscience, CNRS UMR 5297, 33000 Bordeaux, France.
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Liratni M, Blanchet C, Pry R. Intérêt des groupes d’entraînement aux habiletés sociales dans la prise en charge de l’autisme avec retard mental modéré. Arch Pediatr 2014; 21:20-6. [DOI: 10.1016/j.arcped.2013.10.021] [Citation(s) in RCA: 4] [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: 12/29/2012] [Revised: 10/03/2013] [Accepted: 10/28/2013] [Indexed: 11/29/2022]
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Maria AS, Ringuenet D, Courty A, Godart N, Duclos J, Bignami L, Vindreau C, Blanchet C, Bourdier L, Berthoz S. 2586 – French adaptation of cognitive remediation therapy for anorexia nervosa: Study design and preliminary findings of a multicenter randomized clinical trial in adolescents and young adults. Eur Psychiatry 2013. [DOI: 10.1016/s0924-9338(13)77251-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Lanore F, Labrousse VF, Szabo Z, Normand E, Blanchet C, Mulle C. Deficits in morphofunctional maturation of hippocampal mossy fiber synapses in a mouse model of intellectual disability. J Neurosci 2012; 32:17882-93. [PMID: 23223307 PMCID: PMC6621665 DOI: 10.1523/jneurosci.2049-12.2012] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2012] [Revised: 10/16/2012] [Accepted: 10/18/2012] [Indexed: 01/04/2023] Open
Abstract
The grik2 gene, coding for the kainate receptor subunit GluK2 (formerly GluR6), is associated with autism spectrum disorders and intellectual disability. Here, we tested the hypothesis that GluK2 could play a role in the appropriate maturation of synaptic circuits involved in learning and memory. We show that both the functional and morphological maturation of hippocampal mossy fiber to CA3 pyramidal cell (mf-CA3) synapses is delayed in mice deficient for the GluK2 subunit (GluK2⁻/⁻). In GluK2⁻/⁻ mice this deficit is manifested by a transient reduction in the amplitude of AMPA-EPSCs at a critical time point of postnatal development, whereas the NMDA component is spared. By combining multiple probability peak fluctuation analysis and immunohistochemistry, we have provided evidence that the decreased amplitude reflects a decrease in the quantal size per mf-CA3 synapse and in the number of active synaptic sites. Furthermore, we analyzed the time course of structural maturation of CA3 synapses by confocal imaging of YFP-expressing cells followed by tridimensional (3D) anatomical reconstruction of thorny excrescences and presynaptic boutons. We show that major changes in synaptic structures occur subsequently to the sharp increase in synaptic transmission, and more importantly that the course of structural maturation of synaptic elements is impaired in GluK2⁻/⁻ mice. This study highlights how a mutation in a gene linked to intellectual disability in the human may lead to a transient reduction of synaptic strength during postnatal development, impacting on the proper formation of neural circuits linked to memory.
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MESH Headings
- Animals
- Animals, Outbred Strains
- Disease Models, Animal
- Excitatory Amino Acid Agonists/pharmacology
- Excitatory Postsynaptic Potentials/genetics
- Excitatory Postsynaptic Potentials/physiology
- Intellectual Disability/genetics
- Intellectual Disability/metabolism
- Intellectual Disability/pathology
- Intellectual Disability/physiopathology
- Mice
- Mice, Knockout
- Mossy Fibers, Hippocampal/drug effects
- Mossy Fibers, Hippocampal/growth & development
- Mossy Fibers, Hippocampal/pathology
- Mossy Fibers, Hippocampal/physiopathology
- N-Methylaspartate/pharmacology
- Presynaptic Terminals/pathology
- Receptors, Kainic Acid/agonists
- Receptors, Kainic Acid/genetics
- Receptors, Kainic Acid/physiology
- Synapses/pathology
- alpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acid/pharmacology
- GluK2 Kainate Receptor
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Affiliation(s)
- Frederic Lanore
- Interdisciplinary Institute for Neuroscience, University of Bordeaux, and
- CNRS UMR 5297, F-33000 Bordeaux, France
| | - Virginie F. Labrousse
- Interdisciplinary Institute for Neuroscience, University of Bordeaux, and
- CNRS UMR 5297, F-33000 Bordeaux, France
| | - Zsolt Szabo
- Interdisciplinary Institute for Neuroscience, University of Bordeaux, and
- CNRS UMR 5297, F-33000 Bordeaux, France
| | - Elisabeth Normand
- Interdisciplinary Institute for Neuroscience, University of Bordeaux, and
- CNRS UMR 5297, F-33000 Bordeaux, France
| | - Christophe Blanchet
- Interdisciplinary Institute for Neuroscience, University of Bordeaux, and
- CNRS UMR 5297, F-33000 Bordeaux, France
| | - Christophe Mulle
- Interdisciplinary Institute for Neuroscience, University of Bordeaux, and
- CNRS UMR 5297, F-33000 Bordeaux, France
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Blanchet C, Castetbon K. Regards sur la surveillance nutritionnelle au Québec et en France (II) – chiffres-clés. Rev Epidemiol Sante Publique 2012. [DOI: 10.1016/j.respe.2012.06.190] [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: 10/28/2022] Open
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Pinheiro PS, Lanore F, Veran J, Artinian J, Blanchet C, Crépel V, Perrais D, Mulle C. Selective Block of Postsynaptic Kainate Receptors Reveals Their Function at Hippocampal Mossy Fiber Synapses. Cereb Cortex 2012; 23:323-31. [DOI: 10.1093/cercor/bhs022] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Abadie C, Blanchet C, Baux D, Larrieu L, Besnard T, Ravel P, Biboulet R, Hamel C, Malcolm S, Mondain M, Claustres M, Roux AF. Audiological findings in 100 USH2 patients. Clin Genet 2011; 82:433-8. [PMID: 21895633 DOI: 10.1111/j.1399-0004.2011.01772.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Bilateral sensorineural hearing loss (HL), classically described as mild to severe with a typically down-sloping audiometric configuration, is the earliest symptom occurring in Usher syndrome type II (USH2). Audiological findings were analyzed in a total of 100 USH2 patients (92 families) divided into three groups according to the gene involved: 88 USH2A, 10 GPR98 and 2 DFNB31 patients. A fine analysis of audiograms was performed (pure tone average, degree of severity, configuration). The median age of HL diagnosis was 5 years (range 8 months-31 years) although the median age at USH2 diagnosis was 34.5 (range 8-76). Moderate HL was predominant (76%) and a gently down-sloping configuration characterized most audiograms (66%). No statistically significant difference was found between USH2A and GPR98 patients but a tendency was clearly noted for more GPR98 patients to present with severe hearing loss. It is not possible to predict the mutated gene from audiograms.
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Affiliation(s)
- C Abadie
- CHU Montpellier, Laboratoire de Génétique Moléculaire, 641 Avenue du Doyen Gaston Giraud, Montpellier, France
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Blanchet C, Pasi M, Zakrzewska K, Lavery R. CURVES+ web server for analyzing and visualizing the helical, backbone and groove parameters of nucleic acid structures. Nucleic Acids Res 2011; 39:W68-73. [PMID: 21558323 PMCID: PMC3125750 DOI: 10.1093/nar/gkr316] [Citation(s) in RCA: 174] [Impact Index Per Article: 13.4] [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] [Indexed: 11/20/2022] Open
Abstract
Curves+, a revised version of the Curves software for analyzing the conformation of nucleic acid structures, is now available as a web server. This version, which can be freely accessed at http://gbio-pbil.ibcp.fr/cgi/Curves_plus/, allows the user to upload a nucleic acid structure file, choose the nucleotides to be analyzed and after optionally setting a number of input variables, view the numerical and graphic results online or download files containing a set of helical, backbone and groove parameters that fully describe the structure. PDB format files are also provided for offline visualization of the helical axis and groove geometry.
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Affiliation(s)
- Christophe Blanchet
- Université Lyon 1, CNRS, UMR 5086, Bases Moléculaires et Structurales des Systèmes Infectieux, IBCP FR3302, 7 passage du Vercors, F-69367, France
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Abstract
MOTIVATION Methods for automatic nuclear magnetic resonance (NMR) structure determination need to face a high level of ambiguity encountered in NMR spectra recorded by solid-state NMR and by solution NMR of partially unfolded proteins, leading to time-consuming calculations. The software package Ambiguous Restraints for Iterative Assignment (ARIA) allows for straightforward parallelization of the calculation, as the conformers can be generated in parallel on many nodes. RESULTS Due to its architecture, the adaptation of ARIA to grid computing can be easily achieved by using the middleware glite and JDL (Job Description Language) scripts. This adaptation makes it possible to address highly ambiguous datasets, because of the much larger conformational sampling that can be generated by use of the grid computational power. AVAILABILITY The version 2.3.1 of ARIA implemented on the grid is freely available from the ARIA web site: aria.pasteur.fr/downloads.
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Affiliation(s)
- Fabien Mareuil
- Unité de Bioinformatique Structurale, CNRS URA 2185, Institut Pasteur 25-28 rue du Dr Roux, F-75724 Paris Cedex 15, France
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Kalas M, Puntervoll P, Joseph A, Bartaseviciūte E, Töpfer A, Venkataraman P, Pettifer S, Bryne JC, Ison J, Blanchet C, Rapacki K, Jonassen I. BioXSD: the common data-exchange format for everyday bioinformatics web services. Bioinformatics 2010; 26:i540-6. [PMID: 20823319 PMCID: PMC2935419 DOI: 10.1093/bioinformatics/btq391] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [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] [Indexed: 11/15/2022] Open
Abstract
Motivation: The world-wide community of life scientists has access to a large number of public bioinformatics databases and tools, which are developed and deployed using diverse technologies and designs. More and more of the resources offer programmatic web-service interface. However, efficient use of the resources is hampered by the lack of widely used, standard data-exchange formats for the basic, everyday bioinformatics data types. Results: BioXSD has been developed as a candidate for standard, canonical exchange format for basic bioinformatics data. BioXSD is represented by a dedicated XML Schema and defines syntax for biological sequences, sequence annotations, alignments and references to resources. We have adapted a set of web services to use BioXSD as the input and output format, and implemented a test-case workflow. This demonstrates that the approach is feasible and provides smooth interoperability. Semantics for BioXSD is provided by annotation with the EDAM ontology. We discuss in a separate section how BioXSD relates to other initiatives and approaches, including existing standards and the Semantic Web. Availability: The BioXSD 1.0 XML Schema is freely available at http://www.bioxsd.org/BioXSD-1.0.xsd under the Creative Commons BY-ND 3.0 license. The http://bioxsd.org web page offers documentation, examples of data in BioXSD format, example workflows with source codes in common programming languages, an updated list of compatible web services and tools and a repository of feature requests from the community. Contact:matus.kalas@bccs.uib.no; developers@bioxsd.org; support@bioxsd.org
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Affiliation(s)
- Matús Kalas
- Bergen Center for Computational Science, Uni Research, Bergen, Norway.
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Lucas M, Proust F, Blanchet C, Ferland A, Déry S, Abdous B, Dewailly E. Is marine mammal fat or fish intake most strongly associated with omega-3 blood levels among the Nunavik Inuit? Prostaglandins Leukot Essent Fatty Acids 2010; 83:143-50. [PMID: 20634051 DOI: 10.1016/j.plefa.2010.06.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2010] [Revised: 06/11/2010] [Accepted: 06/24/2010] [Indexed: 01/25/2023]
Abstract
Here we determined the relationship between red blood cell (RBC) omega-3 (n-3) long-chain polyunsaturated fatty acids (LC-PUFAs) and usual dietary marine food product intake among 630 Nunavik Inuit adults. Marine food product intake was determined by a food frequency questionnaire (FFQ) and fatty acids were quantified in RBC membranes. Multiple linear regression was undertaken to determine the relationship between marine food product intake and RBC n-3 LC-PUFAs (dependent variable). Mean RBC n-3 LC-PUFA level was 9.16 ± 0.11% [SEM]. The highest correlations noted with RBC n-3 LC-PUFAs were for marine mammal fat (r(s)=0.41, P<0.0001) and fish (r(s)=0.35, P<0.0001). Age, total marine mammal fat and fish intakes were the variables that contributed the most to predicted RBC n-3 LC-PUFAs and explained 34%, 15% and 5%, respectively, of its variances. Our study indicates that marine mammal fat intake is more important than fish in accounting for RBC n-3 LC-PUFA levels among the Nunavik Inuit.
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Affiliation(s)
- M Lucas
- Axe Santé des Populations et Environnement, Centre Hospitalier de l'Université Laval (CHUL-CHUQ), Delta Building #2 - Office 600, 2875 Laurier Blvd., 6th Floor, Que., Canada G1V 2M2.
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Pettifer S, Ison J, Kalas M, Thorne D, McDermott P, Jonassen I, Liaquat A, Fernández JM, Rodriguez JM, Pisano DG, Blanchet C, Uludag M, Rice P, Bartaseviciute E, Rapacki K, Hekkelman M, Sand O, Stockinger H, Clegg AB, Bongcam-Rudloff E, Salzemann J, Breton V, Attwood TK, Cameron G, Vriend G. The EMBRACE web service collection. Nucleic Acids Res 2010; 38:W683-8. [PMID: 20462862 PMCID: PMC2896104 DOI: 10.1093/nar/gkq297] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [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] [Indexed: 12/03/2022] Open
Abstract
The EMBRACE (European Model for Bioinformatics Research and Community Education) web service collection is the culmination of a 5-year project that set out to investigate issues involved in developing and deploying web services for use in the life sciences. The project concluded that in order for web services to achieve widespread adoption, standards must be defined for the choice of web service technology, for semantically annotating both service function and the data exchanged, and a mechanism for discovering services must be provided. Building on this, the project developed: EDAM, an ontology for describing life science web services; BioXSD, a schema for exchanging data between services; and a centralized registry (http://www.embraceregistry.net) that collects together around 1000 services developed by the consortium partners. This article presents the current status of the collection and its associated recommendations and standards definitions.
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Affiliation(s)
- Steve Pettifer
- School of Computer Science, The University of Manchester, Manchester, M13 9PL, UK.
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Lanore F, Blanchet C, Fejtova A, Pinheiro P, Richter K, Balschun D, Gundelfinger E, Mulle C. Impaired development of hippocampal mossy fibre synapses in mouse mutants for the presynaptic scaffold protein Bassoon. J Physiol 2010; 588:2133-45. [PMID: 20421286 DOI: 10.1113/jphysiol.2009.184929] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Bassoon, a protein highly concentrated at the synaptic active zone, is thought to participate in the organization of the cytomatrix at the site of neurotransmitter release. Bassoon is amongst the first proteins to accumulate at newly formed synaptic junctions, raising the question of the functional role of this protein in the early stages of synaptic development. Here we show that the course of synaptic maturation of hippocampal mossy fibre (MF) synapses (glutamatergic synapses with multiple release sites) is markedly altered during the first 2 weeks of postnatal development in mutant mice lacking the central region of Bassoon (Bsn(-/-) mice). At postnatal day 7 (P7), Bsn(-/-) mice display large amplitude MF-EPSCs with decreased paired pulse ratios, an abnormality which may be linked to deficits in the organization of the presynaptic active zone. Surprisingly, 1 week later, decreased MF-EPSCs amplitude is observed in Bsn(-/-) mice, consistent with the inactivation of a subset of synaptic release sites. Finally, at more mature states a decreased posttetanic potentiation is observed at MF-synapses. These results support the notion that Bassoon is important for organizing the presynaptic active zone during the postnatal maturation of glutamatergic synapses.
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Affiliation(s)
- Frederic Lanore
- Laboratoire Physiologie Cellulaire de la Synapse, CNRS UMR 5091, University of Bordeaux, Bordeaux, France
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Zakrzewska K, Bouvier B, Michon A, Blanchet C, Lavery R. Protein-DNA binding specificity: a grid-enabled computational approach applied to single and multiple protein assemblies. Phys Chem Chem Phys 2009; 11:10712-21. [PMID: 20145815 DOI: 10.1039/b910888m] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
We use a physics-based approach termed ADAPT to analyse the sequence-specific interactions of three proteins which bind to DNA on the side of the minor groove. The analysis is able to estimate the binding energy for all potential sequences, overcoming the combinatorial problem via a divide-and-conquer approach which breaks the protein-DNA interface down into a series of overlapping oligomeric fragments. All possible base sequences are studied for each fragment. Energy minimisation with an all-atom representation and a conventional force field allows for conformational adaptation of the DNA and of the protein side chains for each new sequence. As a result, the analysis depends linearly on the length of the binding site and complexes as large as the nucleosome can be treated, although this requires access to grid computing facilities. The results on the three complexes studied are in good agreement with experiment. Although they all involve significant DNA deformation, it is found that this does not necessarily imply that the recognition will be dominated by the sequence-dependent mechanical properties of DNA.
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Affiliation(s)
- Krystyna Zakrzewska
- Institut de Biologie et Chimie des Protéines, CNRS UMR 5086/Université de Lyon, 7 passage du Vercors, 69367 Lyon, France.
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Jeziorski E, Blanchet C, Ludwig C, Lalande M, Coste V, Dereure J, Rodière M. Récidive sous forme pseudotumorale d’une leishmaniose viscérale. Arch Pediatr 2009; 16 Suppl 2:S129-31. [DOI: 10.1016/s0929-693x(09)75316-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Joosten RP, Salzemann J, Bloch V, Stockinger H, Berglund AC, Blanchet C, Bongcam-Rudloff E, Combet C, Da Costa AL, Deleage G, Diarena M, Fabbretti R, Fettahi G, Flegel V, Gisel A, Kasam V, Kervinen T, Korpelainen E, Mattila K, Pagni M, Reichstadt M, Breton V, Tickle IJ, Vriend G. PDB_REDO: automated re-refinement of X-ray structure models in the PDB. J Appl Crystallogr 2009; 42:376-384. [PMID: 22477769 PMCID: PMC3246819 DOI: 10.1107/s0021889809008784] [Citation(s) in RCA: 169] [Impact Index Per Article: 11.3] [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: 02/12/2009] [Accepted: 03/10/2009] [Indexed: 11/24/2022] Open
Abstract
Structural biology, homology modelling and rational drug design require accurate three-dimensional macromolecular coordinates. However, the coordinates in the Protein Data Bank (PDB) have not all been obtained using the latest experimental and computational methods. In this study a method is presented for automated re-refinement of existing structure models in the PDB. A large-scale benchmark with 16 807 PDB entries showed that they can be improved in terms of fit to the deposited experimental X-ray data as well as in terms of geometric quality. The re-refinement protocol uses TLS models to describe concerted atom movement. The resulting structure models are made available through the PDB_REDO databank (http://www.cmbi.ru.nl/pdb_redo/). Grid computing techniques were used to overcome the computational requirements of this endeavour.
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Affiliation(s)
- Robbie P. Joosten
- Centre for Molecular and Biomolecular Informatics, NCMLS, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Jean Salzemann
- CNRS/IN2P3, Laboratoire de Physique Corpusculaire, Université Blaize Pascal, Clermont-Ferrand, France
| | - Vincent Bloch
- CNRS/IN2P3, Laboratoire de Physique Corpusculaire, Université Blaize Pascal, Clermont-Ferrand, France
| | - Heinz Stockinger
- Swiss Institute of Bioinformatics, Vital-IT Group, Lausanne, Switzerland
| | | | - Christophe Blanchet
- IBCP, CNRS Université de Lyon1, IFR128 BioSciences Lyon-Gerland, Lyon, France
| | | | - Christophe Combet
- IBCP, CNRS Université de Lyon1, IFR128 BioSciences Lyon-Gerland, Lyon, France
| | - Ana L. Da Costa
- CNRS/IN2P3, Laboratoire de Physique Corpusculaire, Université Blaize Pascal, Clermont-Ferrand, France
| | - Gilbert Deleage
- IBCP, CNRS Université de Lyon1, IFR128 BioSciences Lyon-Gerland, Lyon, France
| | - Matteo Diarena
- CNRS/IN2P3, Laboratoire de Physique Corpusculaire, Université Blaize Pascal, Clermont-Ferrand, France
| | - Roberto Fabbretti
- Swiss Institute of Bioinformatics, Vital-IT Group, Lausanne, Switzerland
| | - Géraldine Fettahi
- CNRS/IN2P3, Laboratoire de Physique Corpusculaire, Université Blaize Pascal, Clermont-Ferrand, France
| | - Volker Flegel
- Swiss Institute of Bioinformatics, Vital-IT Group, Lausanne, Switzerland
| | - Andreas Gisel
- Institute for Biomedical Technologies Bari, CNR, Bari, Italy
| | - Vinod Kasam
- Fraunhofer-Institute for Algorithms and Scientific Computing, Sankt Augustin, Germany
| | - Timo Kervinen
- CSC – The Finnish IT Center for Science, Espoo, Finland
| | | | - Kimmo Mattila
- CSC – The Finnish IT Center for Science, Espoo, Finland
| | - Marco Pagni
- Swiss Institute of Bioinformatics, Vital-IT Group, Lausanne, Switzerland
| | - Matthieu Reichstadt
- CNRS/IN2P3, Laboratoire de Physique Corpusculaire, Université Blaize Pascal, Clermont-Ferrand, France
| | - Vincent Breton
- CNRS/IN2P3, Laboratoire de Physique Corpusculaire, Université Blaize Pascal, Clermont-Ferrand, France
| | | | - Gert Vriend
- Centre for Molecular and Biomolecular Informatics, NCMLS, Radboud University Medical Center, Nijmegen, The Netherlands
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Loquet A, Bardiaux B, Gardiennet C, Blanchet C, Baldus M, Nilges M, Malliavin T, Böckmann A. 3D Structure Determination of the Crh Protein from Highly Ambiguous Solid-State NMR Restraints. J Am Chem Soc 2008; 130:3579-89. [DOI: 10.1021/ja078014t] [Citation(s) in RCA: 125] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Antoine Loquet
- Institut de Biologie et Chimie des Protéines, UMR 5086 CNRS Université Lyon 1, IFR128 BioSciences Lyon-Gerland, 7, passage du Vercors, 69367 Lyon, France, Unité de Bio-Informatique Structurale, URA 2185 CNRS, Institut Pasteur, 25-28 rue du docteur Roux, F-75015 Paris, France, and Department of NMR-based Structural Biology, Max-Planck-Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | - Benjamin Bardiaux
- Institut de Biologie et Chimie des Protéines, UMR 5086 CNRS Université Lyon 1, IFR128 BioSciences Lyon-Gerland, 7, passage du Vercors, 69367 Lyon, France, Unité de Bio-Informatique Structurale, URA 2185 CNRS, Institut Pasteur, 25-28 rue du docteur Roux, F-75015 Paris, France, and Department of NMR-based Structural Biology, Max-Planck-Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | - Carole Gardiennet
- Institut de Biologie et Chimie des Protéines, UMR 5086 CNRS Université Lyon 1, IFR128 BioSciences Lyon-Gerland, 7, passage du Vercors, 69367 Lyon, France, Unité de Bio-Informatique Structurale, URA 2185 CNRS, Institut Pasteur, 25-28 rue du docteur Roux, F-75015 Paris, France, and Department of NMR-based Structural Biology, Max-Planck-Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | - Christophe Blanchet
- Institut de Biologie et Chimie des Protéines, UMR 5086 CNRS Université Lyon 1, IFR128 BioSciences Lyon-Gerland, 7, passage du Vercors, 69367 Lyon, France, Unité de Bio-Informatique Structurale, URA 2185 CNRS, Institut Pasteur, 25-28 rue du docteur Roux, F-75015 Paris, France, and Department of NMR-based Structural Biology, Max-Planck-Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | - Marc Baldus
- Institut de Biologie et Chimie des Protéines, UMR 5086 CNRS Université Lyon 1, IFR128 BioSciences Lyon-Gerland, 7, passage du Vercors, 69367 Lyon, France, Unité de Bio-Informatique Structurale, URA 2185 CNRS, Institut Pasteur, 25-28 rue du docteur Roux, F-75015 Paris, France, and Department of NMR-based Structural Biology, Max-Planck-Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | - Michael Nilges
- Institut de Biologie et Chimie des Protéines, UMR 5086 CNRS Université Lyon 1, IFR128 BioSciences Lyon-Gerland, 7, passage du Vercors, 69367 Lyon, France, Unité de Bio-Informatique Structurale, URA 2185 CNRS, Institut Pasteur, 25-28 rue du docteur Roux, F-75015 Paris, France, and Department of NMR-based Structural Biology, Max-Planck-Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | - Thérèse Malliavin
- Institut de Biologie et Chimie des Protéines, UMR 5086 CNRS Université Lyon 1, IFR128 BioSciences Lyon-Gerland, 7, passage du Vercors, 69367 Lyon, France, Unité de Bio-Informatique Structurale, URA 2185 CNRS, Institut Pasteur, 25-28 rue du docteur Roux, F-75015 Paris, France, and Department of NMR-based Structural Biology, Max-Planck-Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | - Anja Böckmann
- Institut de Biologie et Chimie des Protéines, UMR 5086 CNRS Université Lyon 1, IFR128 BioSciences Lyon-Gerland, 7, passage du Vercors, 69367 Lyon, France, Unité de Bio-Informatique Structurale, URA 2185 CNRS, Institut Pasteur, 25-28 rue du docteur Roux, F-75015 Paris, France, and Department of NMR-based Structural Biology, Max-Planck-Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
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Dewailly E, Ayotte P, Lucas M, Blanchet C. Risk and benefits from consuming salmon and trout: A Canadian perspective. Food Chem Toxicol 2007; 45:1343-8. [PMID: 17343969 DOI: 10.1016/j.fct.2007.01.010] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2006] [Revised: 12/28/2006] [Accepted: 01/15/2007] [Indexed: 11/16/2022]
Abstract
Recent reports on the presence of persistent organic chemicals in wild and farmed salmon have left consumers and health professionals confused regarding the safety of regular fish consumption. The objectives of this study were (1) to compare concentrations of key contaminants and the essential nutrients omega-3 fatty acids between farmed and wild salmon and trout, and (2) to balance risks and benefits from regularly consuming these species. Concentrations of mercury, polychlorinated biphenyls, dioxins and furans as well as omega-3 fatty acids were determined in fillets from farmed salmon and trout bought in various markets located in Quebec, Canada, as well as in fillets from wild salmonids obtained from fishermen and various Canadian agencies. While differences were observed between market (farmed) and wild fish with regard to the concentrations of mercury and polychlorinated biphenyls, overall the concentrations of contaminants were low, such that the regular consumption of these fish would not cause tolerable daily intakes to be exceeded. Our results indicate that salmon and trout sold in Quebec markets, which as in markets located elsewhere in North America originate for the most part from Chilean farms, can be consumed regularly to achieve optimal nutritional benefits from omega-3 fatty acids, without incurring significant contaminant related health risks.
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Affiliation(s)
- E Dewailly
- Unité de Recherche en Santé Publique, Centre Hospitalier Universitaire de Québec (CHUQ-CHUL) and Université Laval, Québec, QC, Canada G1V 2M2.
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