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Moineau I, Chambon V, Perret C, Gouit L, Zamora I, Macumi M, Fertier-Prizzon S, Pitiot O. Using Analytical Quality by Design to improve analytical method development in vaccines quality control: Application to an optimized quantitative high-performance anion-exchange chromatographic method. J Chromatogr B Analyt Technol Biomed Life Sci 2024; 1233:123946. [PMID: 38217970 DOI: 10.1016/j.jchromb.2023.123946] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 11/28/2023] [Accepted: 11/30/2023] [Indexed: 01/15/2024]
Abstract
Analytical quality by design (AQbD) is an enhanced approach for the development of analytical methods. AQbD has received much industrial interest, being the subject of several recently published draft guidelines. This article demonstrates the application of AQbD to determine the quantity of non-adsorbed polysaccharide polyribosyl ribitol phosphate (PRP) and percentage of depolymerized PRP in a commercial hexavalent liquid vaccine, and establishment of an analytical control strategy (ACS). The quantification method developed is high-performance anion-exchange chromatography (HPAEC) with pulsed amperometric detection, preceded by ultracentrifugation (sample preparation) for separation of the depolymerized polysaccharide from the native adsorbed polysaccharide. The first step was to develop the analytical target profile (ATP) which defines the purpose of the analytical measurement as well as the development scope. As a second step, risk assessment tools were used for identification and ranking of the critical method variables (CMVs) which have a potential impact on method performance if not controlled. Based on a multivariate Design of Experiments (DoE) approach, a proposed method operational design region (MODR) was determined for seven CMVs. Finally, the ACS was established from the understanding of the analytical method and the robustness study. This article focuses on robust and operational ranges of critical parameters linked to the ultracentrifugation and chromatographic steps for depolymerized polysaccharide content control. The design space proposed for CMVs corresponds to the ranges that ensure a product that complies with the previously established precision criteria (±2% equivalent to ± 10 % around the product criterion, which is 20 % for depolymerized polysaccharide control limit). The following design space was established from the DoE statistical modeling for ultracentrifugation critical parameters: [483,000-520,000] g for speed, [11-19]°C for temperature, [29-34] minutes for duration, and from extemporaneous to 8 min for holding time before supernatant recuperation after the ultracentrifugation. For chromatographic critical parameters, the MODR is [2-6] psi for mobile phase helium pressure, [0-7] days for mobile phase storage time, and [0-3] days for samples storage time in the autosampler at 5 °C. Methods optimized using the AQbD approach provide strong justifications during regulatory filing for the selection of analytical CMVs, and for the ACS to be applied during the lifecycle management of the method.
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Affiliation(s)
| | - Véronique Chambon
- Analytical Sciences, Sanofi, Campus Mérieux, 1541 Avenue Marcel Mérieux, 69280 Marcy l'Etoile, France.
| | - Céline Perret
- Analytical Sciences, Sanofi, Campus Mérieux, 1541 Avenue Marcel Mérieux, 69280 Marcy l'Etoile, France
| | - Luce Gouit
- Analytical Sciences, Sanofi, Campus Mérieux, 1541 Avenue Marcel Mérieux, 69280 Marcy l'Etoile, France
| | - Isabelle Zamora
- Analytical Sciences, Sanofi, Campus Mérieux, 1541 Avenue Marcel Mérieux, 69280 Marcy l'Etoile, France
| | - Mannaig Macumi
- AKTEHOM, Berges du Rhône, 64 avenue Leclerc, 69007 Lyon, France
| | - Stéphanie Fertier-Prizzon
- Analytical Sciences, Sanofi, Campus Mérieux, 1541 Avenue Marcel Mérieux, 69280 Marcy l'Etoile, France
| | - Olivier Pitiot
- Analytical Sciences, Sanofi, Campus Mérieux, 1541 Avenue Marcel Mérieux, 69280 Marcy l'Etoile, France
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Stojic S, Eriks-Hoogland I, Gamba M, Valido E, Minder B, Chatelan A, Karagounis LG, Ballesteros M, Díaz C, Brach M, Stoyanov J, Diviani N, Rubinelli S, Perret C, Glisic M. Mapping of Dietary Interventions Beneficial in the Prevention of Secondary Health Conditions in Spinal Cord Injured Population: A Systematic Review. J Nutr Health Aging 2023; 27:524-541. [PMID: 37498100 DOI: 10.1007/s12603-023-1937-6] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 06/06/2023] [Indexed: 07/28/2023]
Abstract
OBJECTIVES Individuals with spinal cord injury are at risk of secondary health conditions (SHC) that develop as a consequence of autonomic dysfunction, prolonged oxidative stress and inflammation, and physical inactivity coupled with inadequate energy and nutritional intake. SHC can be debilitating and even life-threatening, and its prevention remains one of the major challenges in the continuum of medical care of aging SCI population. An unhealthy diet is a major driver of inflammation, oxidative stress, and unfavourable metabolic status and may be a practical preventive target to tackle increased SHC risk post-injury. AIMS To provide a catalogue of dietary interventions beneficial in prevention of SHC among individuals with SCI by conducting a systematic review of the literature on dietary interventions and dietary supplementation in promoting health and well-being after the injury. In addition, we aimed to provide a summary of observational studies exploring the association between habitual diet (macro- and micronutrients intake and dietary patterns) and health patterns following the injury. METHOD This review was registered at PROSPERO (University of York) with registration number CRD42022373773. Four medical databases (EMBASE.com, MEDLINE [Ovid], Cochrane CENTRAL, and Web of Science Core Collection) and Google Scholar were searched from inception until 11th July 2022. Studies were included if they were clinical trials or observational studies conducted in adult individuals with SCI and provided information of interest. Based on strength of the study design and risk of bias assessment (using the NIH tool), we classified studies from Level 1 (most reliable studies) to Level 4 (least reliable studies). RESULTS Of 12,313 unique citations, 47 articles (based on 43 original studies) comprising 32 interventional (22 RCTs, 3 NRCT, and 7 pre-post studies) and 11 observational studies (2 cohort studies, 2 case-control, 1 post-intervention follow-up study, and 6 cross-sectional studies) were included in the present systematic review. Twenty studies (46.5%) were classified as Level 1 or 2, indicating high/moderate methodological quality. Based on those studies, dietary strategies including high protein diet, intermittent fasting, balanced diet in combination with physical conditioning and electrical stimulation, and dietary supplementation including alpha-lipoic acid, creatine, vitamin D, and cranberry-derived supplements and probiotics were mapped as the most promising in prevention of SHC among individuals with SCI. CONCLUSIONS To develop timely and effective preventive strategies targeting major SHC (e.g., cardiometabolic diseases, urinary tract infections) in SCI, further research is warranted to confirm the effectiveness of dietary strategies/interventions identified through the current systematic review of the literature.
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Affiliation(s)
- S Stojic
- PD. Dr Marija Glisic, Swiss Paraplegic Research, Guido A. Zäch Str. 4, 6207 Nottwil, Switzerland, and
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3
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Bailly M, Perret C, Truchot N, Penard L, Drevon-Gaillot E. Retrospective analysis on the tolerability of non-standard used vehicles in non-clinical studies. Toxicol Lett 2021. [DOI: 10.1016/s0378-4274(21)00659-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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4
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Ferrarez CE, Bertani R, Koester S, Perret C, Leal RS, Gusmão S, Maluf FB, Oliveira MM, Landeiro JA. Fully endoscopic clipping of anterior circulation cerebral aneurysms through transpalpebral approach: One step closer to robotic neurovascular surgery? J Clin Neurosci 2021; 88:142-146. [PMID: 33992173 DOI: 10.1016/j.jocn.2021.03.016] [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] [Received: 12/19/2020] [Revised: 02/13/2021] [Accepted: 03/11/2021] [Indexed: 11/19/2022]
Affiliation(s)
- C E Ferrarez
- Hospital Madre Teresa, Belo Horizonte, MG, Brazil.
| | - R Bertani
- Hospital Municipal Miguel Couto, Rio de Janeiro, RJ, Brazil.
| | - S Koester
- University of Vanderbilt, School of Medicine, Nashville, TN, USA
| | - C Perret
- Hospital Municipal Miguel Couto, Rio de Janeiro, RJ, Brazil
| | - R S Leal
- Hospital Madre Teresa, Belo Horizonte, MG, Brazil
| | - S Gusmão
- Hospital Madre Teresa, Belo Horizonte, MG, Brazil
| | - F B Maluf
- Hospital Madre Teresa, Belo Horizonte, MG, Brazil
| | - M M Oliveira
- Hospital Madre Teresa, Belo Horizonte, MG, Brazil
| | - J A Landeiro
- Universidade Federal Fluminense, Rio de Janeiro, RJ, Brazil.
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De Baère T, Pracht M, Rolland Y, Durand-Labrunie J, Nguyen F, Bronowicki J, Vendrely V, Cunha AS, Croisé-Laurent V, Rio E, Le Sourd S, Said P, Gustin P, Perret C, Peiffert D, Deutsch E, Chajon E. PH-0159: NANORAY-103: Phase I/II trial of NBTXR3 activated by SBRT in patients with HCC and liver metastases. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00183-3] [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: 11/30/2022]
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David A, Frampas E, Douane F, Perret C, Leaute F, Cantarovich D, Karam G, Branchereau J. Management of vascular and nonvascular complications following pancreas transplantation with interventional radiology. Diagn Interv Imaging 2020; 101:629-638. [PMID: 32089482 DOI: 10.1016/j.diii.2020.02.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 01/29/2020] [Accepted: 02/02/2020] [Indexed: 12/23/2022]
Abstract
Pancreas transplantation exposes to high rates of complications, either vascular (thrombosis, stenosis, pseudoaneurysm, arteriovenous fistula) or nonvascular (fluid collection, graft rejection). With advances in percutaneous and endovascular techniques, interventional radiologists are increasingly involved in the management of these complications. In this article, we review the anatomical considerations relevant to pancreas transplantation, the techniques used for image-guided interventions for vascular and nonvascular complications, and the expected outcomes of these interventions.
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Affiliation(s)
- A David
- Department of Radiology, Nantes University Hospital, University of Medicine of Nantes, 44093 Nantes, France.
| | - E Frampas
- Department of Radiology, Nantes University Hospital, University of Medicine of Nantes, 44093 Nantes, France
| | - F Douane
- Department of Radiology, Nantes University Hospital, University of Medicine of Nantes, 44093 Nantes, France
| | - C Perret
- Department of Radiology, Nantes University Hospital, University of Medicine of Nantes, 44093 Nantes, France
| | - F Leaute
- Department of Radiology, Nantes University Hospital, University of Medicine of Nantes, 44093 Nantes, France
| | - D Cantarovich
- Department of Nephrology, Nantes University Hospital, University of Medicine of Nantes, 44093 Nantes, France
| | - G Karam
- Department of Urology, Nantes University Hospital, University of Medicine of Nantes, 44093 Nantes, France
| | - J Branchereau
- Department of Urology, Nantes University Hospital, University of Medicine of Nantes, 44093 Nantes, France
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David A, Metairie S, Perret C, Schnee M, Archambeaud I, Frampas E, Douane F. Minilaparotomy-assisted transmesenteric approach for portal vein recanalization and transjugular intrahepatic portosystemic shunt in a non-cirrhotic patient with portal cavernoma. Diagn Interv Imaging 2020; 101:417-419. [PMID: 31899148 DOI: 10.1016/j.diii.2019.12.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 11/29/2019] [Accepted: 12/09/2019] [Indexed: 02/07/2023]
Affiliation(s)
- A David
- Department of Radiology, Nantes University Hospital and University of Medicine of Nantes, 1, place Alexis Ricordeau, 44093 Nantes, France.
| | - S Metairie
- Department of Abdominal Surgery, Nantes University Hospital and University of Medicine of Nantes, 44093 Nantes, France
| | - C Perret
- Department of Radiology, Nantes University Hospital and University of Medicine of Nantes, 1, place Alexis Ricordeau, 44093 Nantes, France
| | - M Schnee
- Department of Gastroenterology, Centre Hospitalier Départemental de Vendée, Les Oudairies, 85000 La Roche-Sur-Yon, France
| | - I Archambeaud
- Department of Gastroenterology, Nantes University Hospital and University of Medicine of Nantes, 44093 Nantes, France
| | - E Frampas
- Department of Radiology, Nantes University Hospital and University of Medicine of Nantes, 1, place Alexis Ricordeau, 44093 Nantes, France
| | - F Douane
- Department of Radiology, Nantes University Hospital and University of Medicine of Nantes, 1, place Alexis Ricordeau, 44093 Nantes, France
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Bouvet M, Claude O, Roux M, Mougenot N, Duval V, Nadaud S, Delacroix C, Perret C, Yaniz-Galende E, Lemitre M, Tregouet DA, Marazzi G, Silvestre JS, Sassoon D, Hulot JS. P5369Alpha-V integrin regulates the contribution of PW1+ cells to cardiac fibrosis. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0334] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Activated cardiac fibroblasts produce extracellular matrix proteins that accumulate during cardiac fibrosis. We have recently shown that PW1 is expressed in a subset of cardiac stromal cells and that cardiac PW1+ cells represent a cellular source of fibroblasts in the ischemic hearts.
Purpose
We aimed to further identify new cell surface markers expressed by cardiac PW1+ cells and to investigate their role in the fibrogenic behavior of these cells.
Methods and results
We first performed transcriptomic and proteomic profiling of FACS-isolated cardiac PW1+ from normal and ischemic hearts. RNA-sequencing output files were processed with bioinformatics algorithms to identify 378 specific cell-surface markers for cardiac PW1+ cells. By comparing these candidates with the proteomic profile, we then cross-identified 9 cell surface proteins primarily involved in cell motility, adhesion to the matrix, inflammatory response and response to wounding. One of these candidates (i.e., aV-integrin or CD51) was expressed in almost all cardiac PW1+ cells (93±1%), and was predominantly found in cells expressing PW1 in the myocardium. Cardiac PW1+ cells showed a predominant expression of aVβ1 complex which is known to mediate fibrosis through TGF-beta activation in a number of tissues. The transfer of isolated cardiac PW1+CD51+ cells into ischemic hearts was associated with fibrosis development. We further demonstrated that inhibition of aV-integrin in cardiac PW1+ cells reduces their profibrotic gene expression profile and their ability to differentiate into fibroblasts. Lastly, a pharmacological blockade of aV-integrin improved cardiac function and animal survival following myocardial infarction coupled with a reduced infarct size and fibrotic lesion.
Conclusions
These data identify a targetable pathway that regulates cardiac fibrosis in response to an ischemic injury and demonstrate that pharmacological inhibition of aV-integrin leads to reduced pathological outcomes following cardiac ischemia.
Acknowledgement/Funding
Fondation Leducq (grant 13CVD01, CardioStemNet project), Fédération Française de Cardiologie and Era-CVD (ANR-16-ECVD-0011-03, Clarify project)
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Affiliation(s)
- M Bouvet
- Paris Cardiovascular Research Center (PARCC), Paris, France
| | - O Claude
- Paris Cardiovascular Research Center (PARCC), Paris, France
| | - M Roux
- University Pierre & Marie Curie Paris VI, Paris, France
| | - N Mougenot
- University Pierre & Marie Curie Paris VI, Paris, France
| | - V Duval
- Paris Cardiovascular Research Center (PARCC), Paris, France
| | - S Nadaud
- University Pierre & Marie Curie Paris VI, Paris, France
| | - C Delacroix
- Paris Cardiovascular Research Center (PARCC), Paris, France
| | - C Perret
- University Pierre & Marie Curie Paris VI, Paris, France
| | | | - M Lemitre
- Paris Cardiovascular Research Center (PARCC), Paris, France
| | - D A Tregouet
- University Pierre & Marie Curie Paris VI, Paris, France
| | - G Marazzi
- Paris Cardiovascular Research Center (PARCC), Paris, France
| | - J S Silvestre
- Paris Cardiovascular Research Center (PARCC), Paris, France
| | - D Sassoon
- Paris Cardiovascular Research Center (PARCC), Paris, France
| | - J S Hulot
- Paris Cardiovascular Research Center (PARCC), Paris, France
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9
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Pracht M, Chajon E, Rolland Y, de Baere T, Nguyen F, Bronowicki JP, Vendrely V, Sa Cunha A, Baumann AS, Croisé-Laurent V, Rio E, Said P, Le Sourd S, Gustin P, Perret C, Peiffert D, Deutsch E. Phase I/II trial of NBTXR3 activated by SBRT in patients with hepatocellular carcinoma or liver metastasis. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz247.082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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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10
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Rodriguez EC, Pracht M, Rolland Y, De Baere T, Nguyen T, Bronowicki J, Vendrely V, Cunha AS, Baumann A, Croisé-Laurent V, Rio E, Le Sourd S, Gustin P, Perret C, Peiffert D, Deutsch E. Hafnium Oxide Nanoparticles Activated by SBRT for the Treatment of Hepatocellular Carcinoma and Liver Metastasis: A Phase I/II Trial. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.605] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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11
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David A, Liberge R, Meyer J, Morla O, Leaute F, Archambeaud I, Gournay J, Trewick D, Frampas E, Perret C, Douane F. Ultrasonographic guidance for portal vein access during transjugular intrahepatic portosystemic shunt (TIPS) placement. Diagn Interv Imaging 2019; 100:445-453. [DOI: 10.1016/j.diii.2019.01.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/08/2019] [Accepted: 01/16/2019] [Indexed: 02/07/2023]
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12
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De Baere T, Pracht M, Rolland Y, Nguyen F, Bronowicki J, Vendrely V, Cunha AS, Baumann A, Croisé-Laurent V, Rio E, Sourd SL, Gustin P, Perret C, Peiffert D, Deutsch E, Chajon E. Hafnium oxide nanoparticles activated by SBRT: a new interventional radiation therapy approach for the treatment of unresectable liver cancers. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz157.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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13
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Ader F, De Groote P, Reant P, Rooryck-Thambo C, Dupin Deguine D, Rambaud C, Khraiche D, Perret C, Pruny J, Mathieu Dramard M, Gerard M, Troadec Y, Gouya L, Jeunemaitre X, Van Maldergem L, Hagège A, Villard E, Charron P, Richard P. FLNC mutations in patients with cardiomyopathies: Prevalence and genotype-phenotype correlations. Archives of Cardiovascular Diseases Supplements 2019. [DOI: 10.1016/j.acvdsp.2019.02.184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Chajon E, Pracht M, De Baere T, N’Guyen F, Bronowicki J, Vendrely V, Baumann A, Croisé-Laurent V, Rio E, Rolland Y, Le Sourd S, Gustin P, Perret C, Mornex F, Peiffert D, Merle P, Deutsch E. OC-0281 Phase I/II trial of hafnium oxide nanoparticles activated by SBRT in the treatment of liver cancers. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30701-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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15
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Lorne E, Nuzzo D, Suzanne S, Walczak KA, Perret C, Laigle C, Mattei N, Dimov E, Petiot S, Godart J, Pila C, Verdier MC, Chourbagi C, Diouf M, Friggeri A, Mahjoub Y, Dupont H. Erratum to “Storage at room temperature does not change cisatracurium onset time: A prospective, randomized, double-blind controlled study [Ann. Fr. Anesth. Reanim. 31 (2012) 783–787]. Anaesth Crit Care Pain Med 2018; 37:653. [DOI: 10.1016/j.accpm.2018.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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Pracht M, Chajon E, de Baere T, Nguyen F, Bronowicki JP, Vendrely V, Baumann AS, Croisé-Laurent V, Rio E, Rolland Y, Le Sourd S, Gustin P, Perret C, Mornex F, Peiffert D, Merle P, Deutsch E. Hepatocellular carcinoma and liver metastasis treated by hafnium oxide nanoparticles activated by stereotactic body radiation therapy. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy282.094] [Citation(s) in RCA: 4] [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: 11/14/2022] Open
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17
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Remillieux M, Durand C, Sartelet H, Piolat C, Bourgeois E, Pommier P, Hameury F, Dieterich K, Vidaud D, Perret C. [Type 1 neurofibromatosis: Onset of two tumors before the age of 5years]. Arch Pediatr 2017; 24:986-990. [PMID: 28870819 DOI: 10.1016/j.arcped.2017.08.009] [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] [Received: 10/04/2016] [Revised: 03/17/2017] [Accepted: 08/04/2017] [Indexed: 11/15/2022]
Abstract
Neurofibromatosis type 1 (NF1) is a frequent autosomal dominant genetic disorder that predisposes to the development of benign and malignant tumors. Mutation of the NF1 gene affects the RAS-MAPK signaling pathway and leads to a dysfunction in cell proliferation and induces tumor development. Epidemiology of cancer in children with NF1 is very different from the general pediatric population, which requires regular and specific monitoring. Neurofibroma is the most frequent benign tumor. It can be very invalidating depending on the size and location of the tumor. Currently, there is no specific treatment for these tumors. The most frequent malignancies in children with NF1 are leukemias, rhabdomyosarcomas, malignant peripheral nerve sheath tumors and gliomas. The treatment of these tumors should consider the risk of second cancers induced by radio- and chemotherapy. We report on the case of a 5-year-old boy with NF1 developing two tumors.
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Affiliation(s)
- M Remillieux
- Clinique universitaire de pédiatrie, hôpital-couple-enfant, CHU de Grenoble, avenue du Maquis-du-Grésivaudan, BP 217, 38043 Grenoble cedex 9, France.
| | - C Durand
- Service de radiologie pédiatrique, hôpital-couple-enfant, CHU de Grenoble, avenue du Maquis-du-Grésivaudan, BP 217, 38043 Grenoble cedex 9, France
| | - H Sartelet
- Service d'anapathologie et de cytopathologie, CHU de Grenoble, avenue du Maquis-du-Grésivaudan, BP 217, 38043 Grenoble cedex 9, France
| | - C Piolat
- Service de chirurgie pédiatrique, hôpital-couple-enfant, CHU de Grenoble, avenue du Maquis-du-Grésivaudan, BP 217, 38043 Grenoble cedex 9, France
| | - E Bourgeois
- Service de chirurgie pédiatrique, hôpital-couple-enfant, CHU de Grenoble, avenue du Maquis-du-Grésivaudan, BP 217, 38043 Grenoble cedex 9, France
| | - P Pommier
- Service de radiothérapie, centre Léon-Berard, 28, rue Laennec, 69008 Lyon, France
| | - F Hameury
- Service de chirurgie pédiatrique uro-génitale, viscérale, thoracique, néonatale et transplantation, hôpital femme-mère-enfant, 59, boulevard Pinel, 69500 Bron, France
| | - K Dieterich
- Service de génétique, CHU de Grenoble, avenue du Maquis-du-Gresivaudan, BP 217, 38043 Grenoble cedex 9, France
| | - D Vidaud
- Service de génétique et biologie moléculaires, hôpital Cochin, CHU de Paris, 27, rue du Faubourg-Saint-Jacques, 75014 Paris, France
| | - C Perret
- Clinique universitaire de pédiatrie, hôpital-couple-enfant, CHU de Grenoble, avenue du Maquis-du-Grésivaudan, BP 217, 38043 Grenoble cedex 9, France
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Martin-Babau J, Robert M, Seegers V, Paillard MJ, Pivot X, Gourmelon C, Uwer L, Korenbaum C, Petit T, Thery JC, Som M, Lefeuvre-Plesse C, Perret C, Simon H, Hardy-Bessard AC, Desclos H, Bourgeois H, Campone M, Tredan O, Patsouris A. Eribulin is safe and efficient in metastatic breast cancer in elderly patients. Results from the REPROLINE multicentric retro-prospective cohort. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx365.062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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David A, Liberge R, Perret C, Frampas E, Douane F. CT-guided direct percutaneous treatment of a ruptured pulmonary artery pseudoaneurysm using N-butyl cyanoacrylate. Diagn Interv Imaging 2017; 98:903-904. [PMID: 28733139 DOI: 10.1016/j.diii.2017.06.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 06/23/2017] [Accepted: 06/27/2017] [Indexed: 10/19/2022]
Affiliation(s)
- A David
- Department of Radiology, centre hospitalier universitaire de Nantes, 1, place Alexis-Ricordeau, 44093 Nantes, France.
| | - R Liberge
- Department of Radiology, centre hospitalier universitaire de Nantes, 1, place Alexis-Ricordeau, 44093 Nantes, France.
| | - C Perret
- Department of Radiology, centre hospitalier universitaire de Nantes, 1, place Alexis-Ricordeau, 44093 Nantes, France.
| | - E Frampas
- Department of Radiology, centre hospitalier universitaire de Nantes, 1, place Alexis-Ricordeau, 44093 Nantes, France.
| | - F Douane
- Department of Radiology, centre hospitalier universitaire de Nantes, 1, place Alexis-Ricordeau, 44093 Nantes, France.
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Roux M, Yaniz-Galende E, Perret C, Claude O, Marazzi G, Sassoon D, Tregouet D, Hulot J. Transcriptomic profiling identifies cardiac PW1 cells as a specific population with fibrogenic potential. Archives of Cardiovascular Diseases Supplements 2017. [DOI: 10.1016/s1878-6480(17)30449-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Felleiter P, Krebs J, Haeberli Y, Schmid W, Tesini S, Perret C. Post-traumatic changes in energy expenditure and body composition in patients with acute spinal cord injury. J Rehabil Med 2017; 49:579-584. [DOI: 10.2340/16501977-2244] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Raab AM, Krebs J, Perret C, Michel F, Hopman MT, Mueller G. Maximum Inspiratory Pressure is a Discriminator of Pneumonia in Individuals With Spinal-Cord Injury. Respir Care 2016; 61:1636-1643. [DOI: 10.4187/respcare.04818] [Citation(s) in RCA: 14] [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: 11/05/2022]
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Djokic V, Fablet C, Blaga R, Rose N, Perret C, Djurkovic-Djakovic O, Boireau P, Durand B. Factors associated with Toxoplasma gondii infection in confined farrow-to-finish pig herds in western France: an exploratory study in 60 herds. Parasit Vectors 2016; 9:466. [PMID: 27558270 PMCID: PMC4997743 DOI: 10.1186/s13071-016-1753-5] [Citation(s) in RCA: 24] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 08/12/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Infection by Toxoplasma gondii postnatally can occur after ingestion of contaminated meat or water (tissue cysts/oocysts). In Europe, percentage of meat borne infections is estimated between 30 and 63 %, out of which pork makes the most important source. The aim of this study was to (i) investigate the seroprevalence of T. gondii in intensive pig farms from western France; and (ii) identify the risk factors associated with seropositivity. METHODS Data were collected between November 2006 and February 2008 in 60 intensive farrow-to-finish farms, where sera were taken from 3595 fattening pigs, weaned and suckling piglets. Information about three classes of potential seropositivity risk factors were obtained through a questionnaire concerning: (i) breeding characteristics; (ii) farm management; and (iii) husbandry and hygiene. The modified agglutination test (MAT) was used for detection of specific anti T. gondii antibodies in pig sera, starting from 1/6 dilution. RESULTS The overall proportion of seropositive animals was 6.9 %, but the proportion of herds with at least one positive pig was 100 %. Multivariate logistic mixed model showed an increased seropositivity risk in weaned compared to suckling piglets, and a decreasing risk for mid-sized and large farms. The presence of a Danish entry facility, that clearly separates clean and dirty areas, had a protective effect on T. gondii seropositivity as well. CONCLUSIONS The observed proportion of herds with at least one T. gondii seropositive animal provides further evidence that even in confined conditions of pig breeding, infection occurs, and is common. The highest risk for acquiring T. gondii is at the end of weaning period. Smaller confined pig farms demonstrate higher T. gondii seropositivity levels. This study also showed that Danish entry on farm buildings provides effective protection against T. gondii.
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Affiliation(s)
- V Djokic
- Ecole Nationale Vétérinaire d'Alfort, ANSES, INRA, Université Paris-Est, Laboratoire de santé animale de Maisons-Alfort UMR BIPAR, Maisons-Alfort, France.,Institute for Medical Research, National Reference Laboratory for Toxoplasmosis, University of Belgrade, Dr. Subotića 4, P.O. Box 102, Belgrade, 11129, Serbia
| | - C Fablet
- ANSES, Unité Epidémiologie et Bien-Etre du Porc, Université Européenne de Bretagne, Laboratoire de Ploufragan-Plouzané, Ploufragan, France
| | - R Blaga
- Ecole Nationale Vétérinaire d'Alfort, ANSES, INRA, Université Paris-Est, Laboratoire de santé animale de Maisons-Alfort UMR BIPAR, Maisons-Alfort, France
| | - N Rose
- ANSES, Unité Epidémiologie et Bien-Etre du Porc, Université Européenne de Bretagne, Laboratoire de Ploufragan-Plouzané, Ploufragan, France
| | - C Perret
- ANSES, Ecole Nationale Vétérinaire d'Alfort, INRA, Université Paris-Est, Laboratoire de santé animale de Maisons-Alfort, UMR BIPAR, Maisons-Alfort, France
| | - O Djurkovic-Djakovic
- Institute for Medical Research, National Reference Laboratory for Toxoplasmosis, University of Belgrade, Dr. Subotića 4, P.O. Box 102, Belgrade, 11129, Serbia
| | - P Boireau
- ANSES, Ecole Nationale Vétérinaire d'Alfort, INRA, Université Paris-Est, Laboratoire de santé animale de Maisons-Alfort, UMR BIPAR, Maisons-Alfort, France
| | - B Durand
- ANSES, Université Paris-Est, Laboratoire de santé animale de Maisons-Alfort, Epidemiology unit, Maisons-Alfort, France.
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Lim A, Le Sourd S, Senellart H, Luet D, Douane F, Perret C, Bouvier A, Métairie S, Cauchin E, Philippe R, Tamara MB, Touchefeu Y. P-289 Hepatic arterial infusion chemotherapy for unresectable liver metastases of colorectal cancer: a multicenter retrospective study. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw199.279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Flueck JL, Hartmann K, Strupler M, Perret C. Vitamin D deficiency in Swiss elite wheelchair athletes. Spinal Cord 2016; 54:991-995. [PMID: 26976532 DOI: 10.1038/sc.2016.33] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 01/15/2016] [Accepted: 02/12/2016] [Indexed: 11/09/2022]
Abstract
STUDY DESIGN This is a retrospective analysis of total serum 25-hydroxyvitamin D (25[OH]D) in Swiss elite wheelchair athletes. OBJECTIVES The aim was to investigate the occurrence of vitamin D deficiency in Swiss elite wheelchair athletes over the whole year and to detect differences between winter and summer months, and between indoor and outdoor athletes. SETTING This study was conducted in Switzerland. METHODS A total of 164 blood samples from 72 Swiss elite wheelchair athletes (mean±s.d.: age 32±13 years) were analyzed for total serum 25[OH]D. All participants were members of the national team in their discipline. The following disciplines have been included: rugby, athletics, cycling, tennis, ski alpine, curling and basketball. According to general guidelines, insufficient vitamin D status was defined between 50 and 75 nmol l-1, deficiency below 50 nmol l-1 and severe deficiency below 27.5 nmol l-1. RESULTS In all, 73.2% of all samples showed an insufficiency/deficiency in vitamin D status. Total serum 25[OH]D was significantly higher during summer compared with winter months (69.5±21.4 nmol l-1 vs 51.5±21.9 nmol l-1; P<0.001). Indoor sports showed a higher amount of vitamin D insufficiency/deficiency (80.9%) than outdoor sports (70.1%), with a significantly higher 25[OH]D concentration in outdoor sports (P=0.042). CONCLUSION A high percentage of vitamin D deficiency was found among Swiss elite wheelchair athletes. Conclusively, we recommend supplementation with vitamin D-especially during winter-to prevent a deficiency and an impairment of performance.
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Affiliation(s)
- J L Flueck
- Institute of Sports Medicine, Swiss Paraplegic Centre Nottwil, Nottwil, Switzerland
| | - K Hartmann
- Institute of Sports Medicine, Swiss Paraplegic Centre Nottwil, Nottwil, Switzerland
| | - M Strupler
- Institute of Sports Medicine, Swiss Paraplegic Centre Nottwil, Nottwil, Switzerland
| | - C Perret
- Institute of Sports Medicine, Swiss Paraplegic Centre Nottwil, Nottwil, Switzerland
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Martin-Babau J, Basse V, Lucia F, Perret C, Laubel A, Cheneau C, Trouboul F, Robaszkiewicz M, Verveur C, Simon H, Metges J. 2303 Effect of the inhibition of the Renine-Angiotensine system (RAS) as potentiator of gemcitabine in metastatic pancreatic cancer. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31219-9] [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: 10/22/2022]
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Castro-Rodriguez JA, Jakubson L, Padilla O, Gallegos D, Fasce R, Bertrand P, Sanchez I, Perret C. Many respiratory viruses have temporal association with meningococcal disease. Allergol Immunopathol (Madr) 2015; 43:487-92. [PMID: 25456529 DOI: 10.1016/j.aller.2014.07.005] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Accepted: 07/23/2014] [Indexed: 11/17/2022]
Abstract
BACKGROUND Previous ecological studies have shown a temporal and spatial association between influenza epidemics and meningococcal disease (MNG); however, none have examined more than two respiratory viruses. METHODS Data were obtained in Chile between 2000 and 2005 on confirmed cases of MNG and all confirmed cases of respiratory viruses (influenza A and B; parainfluenza; adenovirus; and respiratory syncytial virus [RSV]). Both variables were divided by epidemiological weeks, age range, and regions. Models of transference functions were run for rates of MNG. RESULTS In this period, 1022 reported cases of MNG and 34,737 cases of respiratory virus were identified (25,137 RSV; 4300 parainfluenza; 2527 influenza-A; 356 influenza-B; and 2417 adenovirus). RSV was the major independent virus temporally associated to MNG (it appears one week before MNG), followed by parainfluenza, influenza-B, adenovirus, and influenza-A. CONCLUSIONS The rate of MNG in Chile is temporally associated to all of the respiratory viruses studied, but with variability according age range, and regions.
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Affiliation(s)
- J A Castro-Rodriguez
- Department of Pediatrics, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
| | - L Jakubson
- Department of Pediatrics, School of Medicine, Universidad de Chile, Santiago, Chile
| | - O Padilla
- Department of Public Health, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | | | - R Fasce
- Chilean Public Health Institute, Santiago, Chile
| | - P Bertrand
- Department of Pediatrics, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - I Sanchez
- Department of Pediatrics, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - C Perret
- Department of Pediatrics, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
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Abstract
The 3-min all-out test is a well-established exercise test developed for cycling ergometry. However, no such test exists in arm cranking. Thus the aim of this study was to investigate the test-retest reliability of a 3-min all-out exercise test on an arm crank ergometer. 21 healthy participants (9 male and 12 female, age 34±11 years, body mass 69.6±11.1 kg and height 175.5±6.9 cm) twice performed a 3-min all-out exercise test on an arm crank ergometer separated by 7 days. Peak power (PP), mean power (MP), fatigue index (FI), time to peak (TTP) and total work (TW) were assessed to detect test-retest reliability. PP, MP, FI and TW showed an excellent intra-class correlation coefficient (ICC) ranging from 0.940 to 0.984. Only TTP showed very low reliability with an ICC of 0.379. The results from this test-retest analysis showed that all parameters except the TTP were highly reliable in a 3-min all-out exercise test on an arm crank ergometer in able-bodied participants.
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Affiliation(s)
- J L Flueck
- Swiss Paraplegic Centre, Sports Medicine, Nottwil, Switzerland
| | - M Lienert
- Swiss Paraplegic Centre, Sports Medicine, Nottwil, Switzerland
| | | | - C Perret
- Swiss Paraplegic Centre, Sports Medicine, Nottwil, Switzerland
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Guillet A, Connault J, Perrot P, Perret C, Herbreteau D, Berton M, Caron V, Aubert H, Stalder JF, Maruani A, Barbarot S. Early symptoms and long-term clinical outcomes of distal limb's cutaneous arterio-venous malformations: a retrospective multicentre study of 19 adult patients. J Eur Acad Dermatol Venereol 2015; 30:36-40. [PMID: 25631621 DOI: 10.1111/jdv.12961] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Accepted: 12/09/2014] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Cutaneous arterio-venous malformations (AVM) are high-flow vascular malformations made up of a direct link between arteries and veins without intermediary capillary space. 'Distal limb's AVM', which mean involving hands or feet, are rare and their functional prognosis is often poor. Little is known about their early clinical symptoms. The objectives of this study were to identify early clinical symptoms of distal limb's cutaneous AVMs and to determine their long-term clinical outcome. METHODS A retrospective study was carried out including adult patients who had distal limb's AVM, who were followed up between January 2000 and November 2013 in two regional tertiary care centres. The information was collected from patients' clinical records and completed by a structured telephone questionnaire. RESULTS Nineteen patients were included in the study: four (21%) with foot AVM and 15 (79%) with hand AVM. The first clinical symptoms were as follows: swelling (47%), pain (47%), one or several venous dilatations (37%) and rarely abnormal skin colour, hyperthermia and pulsating sensation. The median diagnosis delay was 9 years after the onset of first manifestations. Amongst the 17 patients who underwent a treatment, 53% had embolotherapy session(s), 12% surgery and 35% had both. After an average follow-up of 57.6 months, 31% of the 13 patients contacted who were receiving treatment were in complete remission; 31% had partial remission; 15% had relapse after initial improvement and 23% had treatment failure. Overall, 74% of patients had a serious development of the AVM: 37% had digital or hand amputation, and 42% remained symptomatic and/or unstable. CONCLUSION This study suggests that initial manifestations of distal limb's AVMs are discreet and non-specific, leading to a diagnosis delay of about 10 years, with poor prognosis. Doctors should evoke the diagnosis earlier, when these symptoms are shown: pain and/or swelling, sometimes with a large vein.
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Affiliation(s)
- A Guillet
- Service de dermatologie, CHU Hôtel Dieu, Nantes, France
| | - J Connault
- Service de médecine interne, CHU Hôtel Dieu, Nantes, France
| | - P Perrot
- Service de chirurgie plastique, CHU Hôtel Dieu, Nantes, France
| | - C Perret
- Service de radiologie, CHU Hôtel Dieu, Nantes, France
| | | | - M Berton
- Service de Dermatologie, Unité de Dermatologie Pédiatrique, CHRU de Tours, France
| | - V Caron
- Service de dermatologie, CHU Hôtel Dieu, Nantes, France
| | - H Aubert
- Service de dermatologie, CHU Hôtel Dieu, Nantes, France
| | - J-F Stalder
- Service de dermatologie, CHU Hôtel Dieu, Nantes, France
| | - A Maruani
- Service de Dermatologie, Unité de Dermatologie Pédiatrique, CHRU de Tours, France
| | - S Barbarot
- Service de dermatologie, CHU Hôtel Dieu, Nantes, France
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Bertrand A, Perret C, Rubio A, Lopez Perrin K, Destombes S, Chambon F, Chastagner P, Oudot C, Marec-Bérard P. P259: Étude FNOP – Recherche de facteurs de risque nutritionnels en onco-hématologie pédiatrique. NUTR CLIN METAB 2014. [DOI: 10.1016/s0985-0562(14)70901-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Guillet A, Maruani A, Berton M, Herbreteau P, Perret C, Connault J, Perrot P, Aubert H, Caron V, Stalder JF, Barbarot S. Signes cliniques précoces et pronostic à long terme des malformations artério-veineuses cutanées distales de membre : étude rétrospective multicentrique de 19 patients. Ann Dermatol Venereol 2014. [DOI: 10.1016/j.annder.2014.09.164] [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: 12/01/2022]
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Acquadro C, Perret C, Arnould B. Pro Claims In Orphan Medicines Approved By the European Medicines Agency (Ema) for the Treatment of Lymphoproliferative Disorders. Value Health 2014; 17:A536. [PMID: 27201714 DOI: 10.1016/j.jval.2014.08.1714] [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] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
| | - C Perret
- MAPI Research Trust, Lyon, France
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Davoust B, Mediannikov O, Roqueplo C, Perret C, Demoncheaux JP, Sambou M, Guillot J, Blaga R. Enquête de séroprévalence de la toxoplasmose animale au Sénégal. ACTA ACUST UNITED AC 2014; 108:73-7. [DOI: 10.1007/s13149-014-0403-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Accepted: 07/22/2014] [Indexed: 10/24/2022]
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Dahmani R, Just PA, Delay A, Canal F, Finzi L, Prip-Buus C, Lambert M, Sujobert P, Buchet-Poyau K, Miller E, Cavard C, Marmier S, Terris B, Billaud M, Perret C. A novel LKB1 isoform enhances AMPK metabolic activity and displays oncogenic properties. Oncogene 2014; 34:2337-46. [PMID: 24998845 DOI: 10.1038/onc.2014.182] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2013] [Revised: 04/28/2014] [Accepted: 05/16/2014] [Indexed: 12/13/2022]
Abstract
The LKB1 tumor suppressor gene encodes a master kinase that coordinates the regulation of energetic metabolism and cell polarity. We now report the identification of a novel isoform of LKB1 (named ΔN-LKB1) that is generated through alternative transcription and internal initiation of translation of the LKB1 mRNA. The ΔN-LKB1 protein lacks the N-terminal region and a portion of the kinase domain. Although ΔN-LKB1 is catalytically inactive, it potentiates the stimulating effect of LKB1 on the AMP-activated protein kinase (AMPK) metabolic sensor through a direct interaction with the regulatory autoinhibitory domain of AMPK. In contrast, ΔN-LKB1 negatively interferes with the LKB1 polarizing activity. Finally, combining in vitro and in vivo approaches, we showed that ΔN-LKB1 has an intrinsic oncogenic property. ΔN-LKB1 is expressed solely in the lung cancer cell line, NCI-H460. Silencing of ΔN-LKB1 decreased the survival of NCI-H460 cells and inhibited their tumorigenicity when engrafted in nude mice. In conclusion, we have identified a novel LKB1 isoform that enhances the LKB1-controlled AMPK metabolic activity but inhibits LKB1-induced polarizing activity. Both the LKB1 tumor suppressor gene and the oncogene ΔN-LKB1 are expressed from the same locus and this may account for some of the paradoxical effects of LKB1 during tumorigenesis.
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Affiliation(s)
- R Dahmani
- 1] Inserm, U1016, Institut Cochin, Paris, France [2] Cnrs, UMR8104, Paris, France [3] Université Paris Descartes, Paris, France [4] Equipe labellisée LNCC, Paris, France
| | - P-A Just
- 1] Inserm, U1016, Institut Cochin, Paris, France [2] Cnrs, UMR8104, Paris, France [3] Université Paris Descartes, Paris, France [4] Equipe labellisée LNCC, Paris, France
| | - A Delay
- Institut Albert Bonniot, CRI Inserm/UJF U823, Rond Point de la Chantourne, La Tronche, France
| | - F Canal
- 1] Inserm, U1016, Institut Cochin, Paris, France [2] Cnrs, UMR8104, Paris, France [3] Université Paris Descartes, Paris, France [4] Equipe labellisée LNCC, Paris, France
| | - L Finzi
- 1] Inserm, U1016, Institut Cochin, Paris, France [2] Cnrs, UMR8104, Paris, France [3] Université Paris Descartes, Paris, France [4] Equipe labellisée LNCC, Paris, France
| | - C Prip-Buus
- 1] Inserm, U1016, Institut Cochin, Paris, France [2] Cnrs, UMR8104, Paris, France [3] Université Paris Descartes, Paris, France
| | - M Lambert
- 1] Inserm, U1016, Institut Cochin, Paris, France [2] Cnrs, UMR8104, Paris, France [3] Université Paris Descartes, Paris, France
| | - P Sujobert
- 1] Inserm, U1016, Institut Cochin, Paris, France [2] Cnrs, UMR8104, Paris, France [3] Université Paris Descartes, Paris, France
| | - K Buchet-Poyau
- Institut Albert Bonniot, CRI Inserm/UJF U823, Rond Point de la Chantourne, La Tronche, France
| | - E Miller
- Section of Cardiology, Boston University School of Medicine, Boston, MA, USA
| | - C Cavard
- 1] Inserm, U1016, Institut Cochin, Paris, France [2] Cnrs, UMR8104, Paris, France [3] Université Paris Descartes, Paris, France [4] Equipe labellisée LNCC, Paris, France
| | - S Marmier
- 1] Inserm, U1016, Institut Cochin, Paris, France [2] Cnrs, UMR8104, Paris, France [3] Université Paris Descartes, Paris, France [4] Equipe labellisée LNCC, Paris, France
| | - B Terris
- 1] Inserm, U1016, Institut Cochin, Paris, France [2] Cnrs, UMR8104, Paris, France [3] Université Paris Descartes, Paris, France [4] Equipe labellisée LNCC, Paris, France [5] Pathology Unit, Hôpital Cochin, Paris, France
| | - M Billaud
- Institut Albert Bonniot, CRI Inserm/UJF U823, Rond Point de la Chantourne, La Tronche, France
| | - C Perret
- 1] Inserm, U1016, Institut Cochin, Paris, France [2] Cnrs, UMR8104, Paris, France [3] Université Paris Descartes, Paris, France [4] Equipe labellisée LNCC, Paris, France
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Badaoui R, Thiel V, Perret C, Popov I, Dupont H. [Bilateral pneumothorax, cervicofacial and mediastinal emphysema after surgical tracheostomy]. ACTA ACUST UNITED AC 2013; 32:718-20. [PMID: 24035217 DOI: 10.1016/j.annfar.2013.07.815] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Accepted: 07/15/2013] [Indexed: 10/26/2022]
Abstract
Tracheotomy is a surgical procedure for various indications, such as ventilator dependence and airway obstruction. Reported rates in the literature of complications of tracheostomy vary widely. We report an unusual presentation of serious complication after surgical tracheostomy. The correct timing of tracheostomy is still controversial in the literature. A 74-year-old male had emergency surgical tracheostomy under general anesthesia. At the end of the procedure, in recovery room, he developed subcutaneous emphysema of the eyes. There was no pneumothorax seen on chest X-ray. Bronchoscopic examination through the tracheostomy tube showed no evidence of damage to the posterior tracheal wall. Three hours later patient had difficulty breathing requiring sedation with respiratory assistance. X-ray of the chest at this stage showed a right pneumothorax and extensive subcutaneous emphysema of the chest wall. Pneumothorax was managed using a chest tube. Two days after, a control CT scan of the chest showed a left pneumothorax and pneumomediastinum. The pneumothorax was managed using a chest tube. Bronchoscopic examination showed no obvious lesion in the tracheobronchial tree. The patient was treated successfully with supportive care and large doses of antibiotic to prevent mediastinitis. Seven days later, recovery was rapid and complete and CT scan of the chest was completely normal. The patient was discharged from the hospital on the 13th postoperative day. This case illustrates that complications occurring after surgical tracheostomy could be dramatic. Management of tracheotomy is important to prevent complications. There is still debate on optimal timing of tracheotomy. The last three trials have shown no interest to perform an early tracheotomy, neither in terms of vital prognosis nor in terms of the duration of mechanical ventilation.
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Affiliation(s)
- R Badaoui
- Pôle d'anesthésie-réanimation, CHU d'Amiens, place Victor-Pauchet, 80054 Amiens, France.
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Guillet A, Aubert H, Tessier MH, David A, Perret C, Penhoat M, Stalder JF, Barbarot S. Syndrome CLOVES (Congenital Lipomatous Overgrowth, Vascular Malformation, Epidermal Nævi) de diagnostic tardif. Ann Dermatol Venereol 2012. [DOI: 10.1016/j.annder.2012.10.190] [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: 11/16/2022]
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Vildy S, Aubert H, Barbarot S, Boussicault G, Perret C, Stalder JF. Hémorragie grave sur ulcération : une complication rare des hémangiomes congénitaux rapidement involutifs (RICH). Ann Dermatol Venereol 2012. [DOI: 10.1016/j.annder.2012.10.183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Coulouarn C, Cavard C, Rubbia Brandt L, Audebourg A, Dumont F, Just PA, Jacques S, Clément B, Gilgenkrantz H, Perret C, Terris B. Cholangiocarcinomes intrahépatiques : une entité en cours de démembrement. Ann Pathol 2012. [DOI: 10.1016/j.annpat.2012.09.180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
The aim was to investigate whether the level of lactic acidosis in the first part of a heart rate-based lactate minimum test affects the lactate minimum heart rate and performance. We tested 15 men (age: 31 ± 6 years, height: 179 ± 6 cm, body mass: 75.6 ± 7.6 kg and V˙O(2peak) 50.3 ± 10.0 ml · min (- 1) · kg( - 1)). They all completed 2 lactate minimum tests following 2 different protocols during the first part of the test, i. e., i) a maximal test until exhaustion to provoke extensive lactacidaemia and ii) a submaximal test abandoned 3 stages earlier than the maximal test to provoke significantly lower but still considerable lactacidaemia. The second part of the lactate minimum test was identical for both runs. It consisted of a heart rate-based incremental test to determine the lactate minimum and the corresponding lactate minimum heart rate and performance. Results showed a significantly higher maximal blood lactate concentration at the end of the maximal test compared to the submaximal test (9.7 ± 2.7 vs. 6.0 ± 2.0 mmol · l( - 1), P<0.001). Also mean lactate minimum heart rate (160 ± 12 vs. 144 ± 13 bpm, P<0.001) and performance (200 ± 40 vs. 170 ± 35 W, P<0.001) were significantly higher after the maximal test compared to the submaximal test. We conclude that the first part of the heart rate-based lactate minimum test needs to be performed until exhaustion to receive reliable and meaningful results.
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Affiliation(s)
- R Labruyère
- Institute of Human Movement Sciences and Sport, ETH Zurich, Switzerland
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Lorne E, Nuzzo D, Suzanne S, Walczak KA, Perret C, Laigle C, Mattei N, Dimov E, Petiot S, Godart J, Pila C, Verdier MC, Chourbagi C, Diouf M, Friggeri A, Mahjoub Y, Dupont H. [Storage at room temperature does not change cisatracurium onset time: a prospective, randomized, double-blind controlled study]. ACTA ACUST UNITED AC 2012; 31:783-7. [PMID: 22784474 DOI: 10.1016/j.annfar.2012.05.007] [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] [Received: 01/16/2012] [Accepted: 05/14/2012] [Indexed: 10/28/2022]
Abstract
OBJECTIVE Storage of cisatracurium at room temperature seems to have no effect on its degradation in vitro contrary to the recommendations of storage at +4°C. The purpose of this study was to evaluate the influence of cisatracurium' s storage temperature on its onset time. STUDY DESIGN Prospective, randomized, double-blind trial study. PATIENTS AND METHODS Thirty patients were enrolled. The control group consisted of 15 patients receiving cisatracurium (0.15mg/kg) stored at room temperature and the intervention consisted of 15 patients receiving cisatracurium (0.15mg/kg) stored at +4°C. The primary endpoint was to compare cisatracurium onset time depending on the storage temperature. RESULTS Cisatracurium onset time was 235 (180-292) seconds in the "room temperature" group vs. 240 (210-292) seconds in the "refrigerated" group. There was no difference between the onset of cisatracurium depending on the temperature of storage (p=0.51). Subgroups analysis in the "room temperature" group did not show any difference in cisatracurium onset depending on whether it was stored at room temperature for one, two or three weeks. Excellent intubation score was obtained for 100% of the patients. CONCLUSION This study demonstrated that cisatracurium's storage at room temperature had no influence on its onset time. It provides an argument for the preservation of cisatracurium at room temperature for a period not exceeding 21 days. Monitoring the onset of curarization may increase the quality score of intubation.
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Affiliation(s)
- E Lorne
- Pôle anesthésie-réanimation-médecine d'urgence, CHU d'Amiens, place Victor-Pauchet, 80000 Amiens, France.
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Romagnolo B, Perret C. Modèles murins de léiomyomes utérins obtenus par oncogenèse ciblée. Med Sci (Paris) 2012. [DOI: 10.4267/10608/632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Murray J, Braly E, Head H, Donahue D, Rush S, Stence N, Liu A, Kleinhenz J, Bison B, Pietsch T, von Hoff K, von Bueren A, Rutkowski S, Warmuth-Metz M, Jaspan T, Brisse H, Potepan P, Warmuth-Metz M, Berg F, Bison B, Pietsch T, Gerber N, Rutkowski S, Warmuth-Metz M, Sugiyama K, Kurisu K, Kajiwara Y, Takayasu T, Saito T, Hanaya R, Yamasaki F, Vicente J, Fuster-Garcia E, Tortajada S, Garcia-Gomez JM, Davies N, Natarajan K, Wilson M, Grundy RG, Wesseling P, Monleon D, Celda B, Robles M, Peet AC, Perret C, Boltshauser E, Scheer I, Kellenberger C, Grotzer M, Steffen-Smith E, Venzon D, Bent R, Baker E, Shandilya S, Warren K, Shih CS, West J, Ho C, Porter D, Wang Y, Saykin A, McDonald B, Arfanakis K, Warren K, Vezina G, Hargrave D, Poussaint TY, Goldman S, Packer R, Wen P, Pollack I, Zurakowski D, Kun L, Prados M, Kieran M, Eckel L, Keating G, Giannini C, Wetjen N, Patton A, Steffen-Smith E, Sarlls J, Pierpaoli C, Walker L, Venzon D, Bent R, Warren K, Perreault S, Lober R, Yeom K, Carret AS, Vogel H, Partap S, Fisher P, Gill SK, Wilson M, Davies NP, MacPherson L, Arvanitis TN, Peet AC, Davies N, Gill S, Wilson M, MacPherson L, Arvanitis T, Peet A, Hayes L, Jones R, Mazewski C, Aguilera D, Palasis S, Bendel A, Patterson R, Petronio J, Meijer L, Jaspan T, Grundy RGG, Walker DA, Robison N, Grant F, Treves ST, Bandopadhayay P, Manley P, Chi S, Zimmerman MA, Chordas C, Goumnerova L, Smith E, Scott M, Ullrich NJ, Poussaint T, Kieran M, Yang JC, Lightner DD, Khakoo Y, Wolden SL, Smee R, Zhao C, Spencer-Trotter B, Hallock A, Konski A, Bhambani K, Mahajan A, Jones J, Ketonen L, Paulino A, Ater J, Grosshans D, Dauser R, Weinberg J, Chintagumpala M, Dvir R, Elhasid R, Corn B, Tempelhoff H, Matceyevsky D, Makrin V, Shtraus N, Yavetz D, Constantini S, Gez E, Yu ES, Kim YJ, Park HJ, Kim HJ, Shin SH, Kim JH, Kim JY, Lee YK, Fiore MR, Sanne C, Mandeville HC, Saran FH, Greenspoon J, Duckworth J, Singh S, Scheinemann K, Whitton A, Gauvain K, Geller T, Elbabaa S, Dombrowski J, Wong K, Olch A, Davidson TB, Venkatramani R, Haley K, Zaky W, Dhall G, Finlay J, Bishop MW, Hummel TR, Leach J, Minturn J, Breneman J, Stevenson C, Wagner L, Sutton M, Miles L, Fouladi M, Goldman S. RADIOLOGY. Neuro Oncol 2012. [DOI: 10.1093/neuonc/nos107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Berry H, Kakebeeke T, Donaldson N, Perret C, Hunt K. Energetics of paraplegic cycling: Adaptations to 12 months of high volume training. Technol Health Care 2012; 20:73-84. [DOI: 10.3233/thc-2011-0656] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- H.R. Berry
- Centre for Rehabilitation Engineering, University of Glasgow, Glasgow, UK
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- Department of Medical Physics and Bioengineering, University College London, London, UK
| | - C. Perret
- Swiss Paraplegic Research, Nottwil, Switzerland
| | - K.J. Hunt
- Centre for Rehabilitation Engineering, University of Glasgow, Glasgow, UK
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Mueller G, Groot S, Woude L, Perret C, Michel F, Hopman M. Prediction models and development of an easy to use open-access tool for measuring lung function of individuals with motor complete spinal cord injury. J Rehabil Med 2012; 44:642-7. [DOI: 10.2340/16501977-1011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Perret C, Labruyère R, Mueller G, Strupler M. Correlation of heart rate at lactate minimum and maximal lactate steady state in wheelchair-racing athletes. Spinal Cord 2011; 50:33-6. [DOI: 10.1038/sc.2011.97] [Citation(s) in RCA: 12] [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: 11/09/2022]
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Coste J, Perret C, Lemaire JJ. Étude de la production verbale orale chez les patients parkinsoniens : corrélations entre activité neuronale de structures sous-thalamiques et dénomination d’images. Neurochirurgie 2010. [DOI: 10.1016/j.neuchi.2010.10.068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Corre P, Perret C, Isidor B, Khonsari RH. A brain abscess following dental extractions in a patient with hereditary hemorrhagic telangiectasia. Br J Oral Maxillofac Surg 2010; 49:e9-11. [PMID: 20719417 DOI: 10.1016/j.bjoms.2010.07.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2010] [Accepted: 07/23/2010] [Indexed: 10/19/2022]
Abstract
Oral and maxillofacial surgeons must be aware of the potentially life-threatening complications of dental extractions in patients with hereditary haemorrhagic telangiectasia because of their high prevalence of pulmonary arteriovenous fistulas. Despite the lack of evidence-based guidelines, antibiotic cover should be given to patients with HHT who require oral surgery according to the same rules as those used for patients at high risk of bacterial endocarditis.
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Affiliation(s)
- P Corre
- Clinique de Chirurgie Maxillo-Faciale et de Stomatologie, Centre Hospitalier Universitaire de Nantes, France.
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Lefebvre M, Néel A, Perret C, Hamidou M, Connault J. Prise en charge des thrombophlébites septiques fongiques : intérêt de la thrombectomie endovasculaire en complément du traitement antifongique. Rev Med Interne 2010. [DOI: 10.1016/j.revmed.2010.03.179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Guardiola M, Exeter H, Palmen J, Perret C, Li K, Cooper J, Khaw KT, Sandhu M, Ricketts S, Tedgui A, Humphries S, Ninio E, Karabina SA, Boekhold S, Mallat Z, Talmud P. P156 PLA2G2A, PLA2G5 AND PLA2G10 VARIANTS, SPLA2 ACTIVITY AND MASS AND CHD RISK: RESULTS FROM GRACE AND EPIC-NORFOLK. ATHEROSCLEROSIS SUPP 2010. [DOI: 10.1016/s1567-5688(10)70223-3] [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: 10/19/2022]
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50
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Perret C. Cutaneous Diseases in Returnee Travellers from Latin America. Int J Infect Dis 2010. [DOI: 10.1016/j.ijid.2010.02.1866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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