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Laydi M, Doussot A, Lakkis Z, Mathieu P, Gandon A, Dubois C, Degisors S, Martin L, Heyd B, Piessen G. Anatomic patterns of anastomotic leaks after Ivor Lewis esophagectomy for cancer: Impact on management and outcomes. Surgery 2023; 174:247-251. [PMID: 37270298 DOI: 10.1016/j.surg.2023.04.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 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] [Received: 10/03/2022] [Revised: 03/14/2023] [Accepted: 04/25/2023] [Indexed: 06/05/2023]
Abstract
BACKGROUND Anastomotic leakage presentation after Ivor Lewis esophagectomy may vary on imaging. Such variations may influence anastomotic leakage management and outcomes. METHODS All consecutive patients who underwent Ivor Lewis esophagectomy for cancer between 2012 and 2019 in 2 referral centers were included. Anatomical patterns of anastomotic leakage were defined on imaging as follows: eso-mediastinal anastomotic leakage was a leak contained in the posterior mediastinum, eso-pleural anastomotic leakage was a leak involving the pleural cavity, and eso-bronchial anastomotic leakage was a leak communicating with the tracheobronchial tract. According to the Esophageal Complications Consensus Group definition, management and 90-day mortality were evaluated according to these patterns. RESULTS Among 731 patients, 111 (15%) developed anastomotic leakage consisting of eso-mediastinal anastomotic leakage (n = 87, 79%), eso-pleural anastomotic leakage (n = 16, 14%) and eso-bronchial anastomotic leakage (n = 8, 7%). There was no difference among these groups regarding preoperative characteristics or time to anastomotic leakage diagnosis. There was a significant difference in initial management according to anastomotic leakage anatomic patterns (P = .001). More than half of patients who experienced eso-mediastinal anastomotic leakage (n = 46, 53%) were initially treated conservatively without requiring intervention (Esophageal Complications Consensus Group type I), whereas most patients with eso-pleural anastomotic leakage (n = 14, 87.5%) and all with eso-bronchial anastomotic leakage (n = 8, 100%) initially required interventional or surgical treatment (Esophageal Complications Consensus Group type II-III). Anastomotic leakage anatomic patterns had a statistically significant impact on 90-day mortality, intensive care unit stay, and total hospital stay (P < .001). CONCLUSION Anastomotic leakage anatomic patterns after Ivor Lewis esophagectomy influence outcomes. Further studies are warranted to validate it in a prospective setting. Anastomotic leakage anatomic patterns may help in guiding anastomotic leakage management.
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Affiliation(s)
- Maxime Laydi
- Department of Digestive Surgical Oncology, Liver Transplantation Unit, CHU Besançon, France.
| | - Alexandre Doussot
- Department of Digestive Surgical Oncology, Liver Transplantation Unit, CHU Besançon, France
| | - Zaher Lakkis
- Department of Digestive Surgical Oncology, Liver Transplantation Unit, CHU Besançon, France
| | - Pierre Mathieu
- Department of Digestive Surgical Oncology, Liver Transplantation Unit, CHU Besançon, France
| | - Anne Gandon
- Department of Digestive and Oncological Surgery, Claude Huriez Hospital, CHU Lille, France
| | - Clément Dubois
- Department of Digestive and Oncological Surgery, Claude Huriez Hospital, CHU Lille, France
| | - Sébastien Degisors
- Department of Digestive and Oncological Surgery, Claude Huriez Hospital, CHU Lille, France
| | - Louis Martin
- Department of Digestive and Oncological Surgery, Claude Huriez Hospital, CHU Lille, France
| | - Bruno Heyd
- Department of Digestive Surgical Oncology, Liver Transplantation Unit, CHU Besançon, France
| | - Guillaume Piessen
- Department of Digestive and Oncological Surgery, Claude Huriez Hospital, CHU Lille, France; Univ. Lille, CNRS, Inserm, Chu Lille, UMR9020-U1277 - CANTHER - Cancer Heterogeneity Plasticity and Resistance to Therapies, France
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De Bari B, Lefevre L, Henriques J, Gatta R, Falcoz A, Mathieu P, Borg C, Dinapoli N, Boulahdour H, Boldrini L, Valentini V, Vernerey D. Could 18-FDG PET-CT Radiomic Features Predict the Locoregional Progression-Free Survival in Inoperable or Unresectable Oesophageal Cancer? Cancers (Basel) 2022; 14:cancers14164043. [PMID: 36011035 PMCID: PMC9406583 DOI: 10.3390/cancers14164043] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 07/28/2022] [Accepted: 08/02/2022] [Indexed: 11/16/2022] Open
Abstract
Background: We evaluated the value of pre-treatment positron-emission tomography−computed tomography (PET-CT)-based radiomic features in predicting the locoregional progression-free survival (LR-PFS) of patients with inoperable or unresectable oesophageal cancer. Material and Methods: Forty-six patients were included and 230 radiomic parameters were extracted. After a principal component analysis (PCA), we identified the more robust radiomic parameters, and we used them to develop a heatmap. Finally, we correlated these radiomic features with LR-PFS. Results: The median follow-up time was 17 months. The two-year LR-PFS and PFS rates were 35.9% (95% CI: 18.9−53.3) and 21.6% (95%CI: 10.0−36.2), respectively. After the correlation analysis, we identified 55 radiomic parameters that were included in the heatmap. According to the results of the hierarchical clustering, we identified two groups of patients presenting statistically different median LR-PFSs (22.8 months vs. 9.9 months; HR = 2.64; 95% CI 0.97−7.15; p = 0.0573). We also identified two radiomic features (“F_rlm_rl_entr_per” and “F_rlm_2_5D_rl_entr”) significantly associated with LR-PFS. Patients expressing a “F_rlm_2_5D_rl_entr” of <3.3 had a better median LR- PFS (29.4 months vs. 8.2 months; p = 0.0343). Patients presenting a “F_rlm_rl_entr_per” of <4.7 had a better median LR-PFS (50.4 months vs. 9.9 months; p = 0.0132). Conclusion: We identified two radiomic signatures associated with a lower risk of locoregional relapse after CRT.
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Affiliation(s)
- Berardino De Bari
- Radiation Oncology Department, Neuchâtel Hospital Network, CH-2300 La Chaux-de-Fonds, Switzerland
- Radiation Oncology Department, University Hospital of Besançon, F-25000 Besancon, France
- Correspondence: ; Tel.: +41-32-967-21-46
| | - Loriane Lefevre
- Radiation Oncology Department, University Hospital of Besançon, F-25000 Besancon, France
- Radiation Oncology Department, Centre Eugène Marquis, F-35042 Rennes, France
| | - Julie Henriques
- INSERM, Établissement Français du Sang Bourgogne Franche-Comté, UMR1098, Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique, Bourgogne Franche-Comté University, F-25000 Besancon, France
- Methodology and Quality of Life Unit in Oncology, University Hospital of Besançon, F-25000 Besancon, France
| | - Roberto Gatta
- Dipartimento di Scienze Cliniche e Sperimentali, Università degli Studi di Brescia, I-25123 Brescia, Italy
| | - Antoine Falcoz
- INSERM, Établissement Français du Sang Bourgogne Franche-Comté, UMR1098, Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique, Bourgogne Franche-Comté University, F-25000 Besancon, France
- Methodology and Quality of Life Unit in Oncology, University Hospital of Besançon, F-25000 Besancon, France
| | - Pierre Mathieu
- Department of Digestive Surgery and Liver Transplantation, University Hospital of Besançon, F-25000 Besancon, France
| | - Christophe Borg
- INSERM, Établissement Français du Sang Bourgogne Franche-Comté, UMR1098, Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique, Bourgogne Franche-Comté University, F-25000 Besancon, France
- Department of Medical Oncology, University Hospital of Besançon, F-25000 Besancon, France
| | - Nicola Dinapoli
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, I-00100 Rome, Italy
| | - Hatem Boulahdour
- EA 4662-“Nanomedicine Lab, Imagery and Therapeutics”, Nuclear Medicine Department, University Hospital of Besançon, F-25000 Besancon, France
| | - Luca Boldrini
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, I-00100 Rome, Italy
| | - Vincenzo Valentini
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, I-00100 Rome, Italy
| | - Dewi Vernerey
- INSERM, Établissement Français du Sang Bourgogne Franche-Comté, UMR1098, Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique, Bourgogne Franche-Comté University, F-25000 Besancon, France
- Methodology and Quality of Life Unit in Oncology, University Hospital of Besançon, F-25000 Besancon, France
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Gagnon E, Girard A, Bourgault É. Gobeil J, Michaud A, Mathieu P, Arsenault B. Genetic control of body weight by the human brain proteome. Atherosclerosis 2022. [DOI: 10.1016/j.atherosclerosis.2022.06.163] [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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Girard A, Abner E, Manikpurage H, Gagnon E, Gobeil É, Couture C, Mathieu P, Esko T, Arsenault B. The blood proteo-genomic architecture of venous thromboembolism. Atherosclerosis 2022. [DOI: 10.1016/j.atherosclerosis.2022.06.736] [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: 11/28/2022]
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Gobeil É, Gagnon E, Bourgault J, Girard A, Mathieu P, Arsenault B. Impact of non-alcoholic fatty liver disease on coronary artery disease: A Mendelian randomization study. Atherosclerosis 2022. [DOI: 10.1016/j.atherosclerosis.2022.06.062] [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: 11/02/2022]
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Bourgault J, Abner E, Gobeil É, Girard A, Gagnon E, Couture C, Mathieu P, Esko T, Arsenault B. Genome-wide association and Mendelian randomization analyses identify novel genetic and metabolic determinants of acute pancreatitis. Atherosclerosis 2022. [DOI: 10.1016/j.atherosclerosis.2022.06.732] [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: 11/02/2022]
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Manikpurage H, Li Z, Couture C, Eslami A, Bossé Y, Mathieu P, Arsenault B, Thériault S. Combining polygenic risk scores to predict myocardial infarction in the Canadian longitudinal study on aging. Atherosclerosis 2022. [DOI: 10.1016/j.atherosclerosis.2022.06.077] [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: 11/02/2022]
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Lagneaux AS, Hénard S, Diancourt L, Stein E, Perez P, Mathieu P, Alauzet C, Lozniewski A. Clostridium haemolyticum Infection: A Cause of Hemolytic Anemia in a Patient with Bone Marrow Necrosis. Microorganisms 2021; 9:microorganisms9081568. [PMID: 34442646 PMCID: PMC8399981 DOI: 10.3390/microorganisms9081568] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/17/2021] [Accepted: 07/18/2021] [Indexed: 11/30/2022] Open
Abstract
Clostridium haemolyticum is a sporulating Gram-positive anaerobic rod that is considered to be one of the most fastidious and oxygen-sensitive anaerobes. It is a well-known animal pathogen and the cause of bacillary hemoglobinuria primarily in cattle. To date, human infections caused by C. haemolyticum have been reported in three patients with malignant underlying diseases. We present herein the case of a 30-year-old obese woman with no significant past medical history who developed bacteremia caused by C. haemolyticum with massive intravascular hemolysis associated with bone marrow necrosis and acute renal failure. Because of subculture failure, the diagnosis was made on the basis of 16S rDNA sequencing and next-generation sequencing. The patient, who had been afebrile for 20 days after a 17-day-course of antibiotics, experienced a second bacteremic episode caused by C. haemolyticum. After having been successfully treated for 42 days with clindamycin and amoxicillin-clavulanic acid, the patient developed acute myeloid leukemia as a result of bone marrow regeneration. Although uncommon in humans, infections caused by C. haemolyticum are severe and should be considered in a febrile patient who has severe hemolytic anemia. This case also highlights the importance of using molecular techniques for the identification of this fastidious anaerobic organism.
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Affiliation(s)
- Anne Sophie Lagneaux
- Service de Microbiologie, CHRU de Nancy, 54500 Vandœuvre-lès-Nancy, France; (A.S.L.); (C.A.)
| | - Sandrine Hénard
- Service des Maladies Infectieuses et Tropicales, CHRU de Nancy, 54500 Vandœuvre-lès-Nancy, France;
| | - Laure Diancourt
- CNR Bactéries Anaérobies et Botulisme, Institut Pasteur, 75015 Paris, France;
| | - Emmanuelle Stein
- Laboratoire de Biologie Médicale, CH de Verdun–Saint Mihiel, 55100 Verdun, France; (E.S.); (P.M.)
| | - Pierre Perez
- Service de Médecine Intensive et Réanimation, Hôpitaux de Brabois, CHRU de Nancy, 54500 Vandœuvre-lès-Nancy, France;
| | - Pierre Mathieu
- Laboratoire de Biologie Médicale, CH de Verdun–Saint Mihiel, 55100 Verdun, France; (E.S.); (P.M.)
| | - Corentine Alauzet
- Service de Microbiologie, CHRU de Nancy, 54500 Vandœuvre-lès-Nancy, France; (A.S.L.); (C.A.)
- Laboratoire SIMPA Stress Immunité Pathogènes UR 7300, Service de Microbiologie, Université de Lorraine, CHRU de Nancy, 54500 Vandœuvre-lès-Nancy, France
| | - Alain Lozniewski
- Service de Microbiologie, CHRU de Nancy, 54500 Vandœuvre-lès-Nancy, France; (A.S.L.); (C.A.)
- Laboratoire SIMPA Stress Immunité Pathogènes UR 7300, Service de Microbiologie, Université de Lorraine, CHRU de Nancy, 54500 Vandœuvre-lès-Nancy, France
- Correspondence:
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Loubet P, Mathieu P, Lenzi N, Galtier F, Lainé F, Lesieur Z, Vanhems P, Duval X, Postil D, Amour S, Rogez S, Lagathu G, L'Honneur AS, Foulongne V, Houhou N, Lina B, Carrat F, Launay O. Characteristics of human metapneumovirus infection in adults hospitalized for community-acquired influenza-like illness in France, 2012-2018: a retrospective observational study. Clin Microbiol Infect 2020; 27:127.e1-127.e6. [PMID: 32283266 PMCID: PMC7195031 DOI: 10.1016/j.cmi.2020.04.005] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 03/27/2020] [Accepted: 04/04/2020] [Indexed: 11/26/2022]
Abstract
Objectives To describe the prevalence, clinical features and complications of human metapneumovirus (hMPV) infections in a population of adults hospitalized with influenza-like illness (ILI). Methods This was a retrospective, observational, multicenter cohort study using prospectively collected data from adult patients hospitalized during influenza virus circulation, for at least 24 h, for community-acquired ILI (with symptom onset <7 days). Data were collected from five French teaching hospitals over six consecutive winters (2012–2018). Respiratory viruses were identified by multiplex reverse transcription polymerase chain reaction (RT-PCR) on nasopharyngeal specimens. hMPV + patients were compared with hMPV– patients, influenza+ and respiratory syncytial virus (RSV)+ patients using multivariate logistic regressions. Primary outcome was the prevalence of hMPV in patients hospitalized for ILI. Results Among the 3148 patients included (1449 (46%) women, 1988 (63%) aged 65 and over; 2508 (80%) with chronic disease), at least one respiratory virus was detected in 1604 (51%, 95% confidence interval (CI) 49–53), including 100 cases of hMPV (100/3148, 3% 95% CI 3–4), of which 10 (10%) were viral co-infection. In the hMPV + patients, mean length of stay was 7 days, 62% (56/90) developed a complication, 21% (14/68) were admitted to intensive care unit and 4% (4/90) died during hospitalization. In comparison with influenza + patients, hMPV + patients were more frequently >65 years old (adjusted odds ratio (aOR) = 3.3, 95% CI 1.9–6.3) and presented more acute heart failure during hospitalization (aOR = 1.8, 95% CI 1.0–2.9). Compared with RSV + patients, hMPV + patients had less cancer (aOR = 0.4, 95% CI 0.2–0.9) and were less likely to smoke (aOR = 0.5, 95% CI 0.2–0.9) but had similar outcomes, especially high rates of respiratory and cardiovascular complications. Conclusions Adult hMPV infections mainly affect the elderly and patients with chronic conditions and are responsible for frequent cardiac and pulmonary complications similar to those of RSV infections. At-risk populations would benefit from the development of antivirals and vaccines targeting hMPV.
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Affiliation(s)
- P Loubet
- VBMI, INSERM U1047, Department of Infectious and Tropical Disease, CHU Nîmes, Univ Montpellier, Nîmes, France; Inserm, F-CRIN, Réseau Innovative Clinical Research in Vaccinology (I-REIVAC), Paris, France.
| | - P Mathieu
- Université Paris Descartes, Sorbonne Paris Cité, Inserm, CIC Cochin Pasteur, Assistance Publique Hôpitaux de Paris, Hôpital Cochin, Paris, France
| | - N Lenzi
- Inserm, F-CRIN, Réseau Innovative Clinical Research in Vaccinology (I-REIVAC), Paris, France
| | - F Galtier
- Inserm, F-CRIN, Réseau Innovative Clinical Research in Vaccinology (I-REIVAC), Paris, France; CIC1411, CHU Montpellier, Hôpital Saint Eloi, Montpellier, F-34295, France
| | - F Lainé
- Inserm, F-CRIN, Réseau Innovative Clinical Research in Vaccinology (I-REIVAC), Paris, France; Centre d'Investigations Cliniques, INSERM UMR CIC 1414, Hôpital Pontchaillou, Rennes, France
| | - Z Lesieur
- Inserm, F-CRIN, Réseau Innovative Clinical Research in Vaccinology (I-REIVAC), Paris, France
| | - P Vanhems
- Inserm, F-CRIN, Réseau Innovative Clinical Research in Vaccinology (I-REIVAC), Paris, France; Service d'Hygiène, Epidémiologie et Prévention, Hospices Civils de Lyon, F-69437 Lyon, France
| | - X Duval
- Inserm, F-CRIN, Réseau Innovative Clinical Research in Vaccinology (I-REIVAC), Paris, France; CIC1125, Hôpital Bichat Claude Bernard, Paris, France
| | - D Postil
- CHU Dupuytren, CIC 1435, Limoge Cedex, France
| | - S Amour
- Service d'Hygiène, Epidémiologie et Prévention, Hospices Civils de Lyon, F-69437 Lyon, France
| | - S Rogez
- CHU Dupuytren, Service Bactériologie, Virologie, Hygiène, Limoges Cedex, France
| | - G Lagathu
- Université Rennes-I, Virologie, Hôpital Pontchaillou, Rennes, France
| | - A-S L'Honneur
- AHU, Service de Virologie, Hôpital Cochin, Paris, France
| | - V Foulongne
- Service de Virologie, CHU Montpellier, Hôpital Saint Eloi, Montpellier, F-34295, France
| | - N Houhou
- Laboratoire de Virologie, Hôpital Bichat Claude Bernard, Paris, France
| | - B Lina
- Hospices Civils de Lyon, Laboratoire de Virologie, Institut des Agents Infectieux (IAI), Centre National de Référence des virus Respiratoires France Sud, Hôpital de la Croix-Rousse, 69317 Lyon Cedex 04, France
| | - F Carrat
- Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique IPLESP, AP-HP, Hôpital Saint Antoine, F75013 Paris, France
| | - O Launay
- Inserm, F-CRIN, Réseau Innovative Clinical Research in Vaccinology (I-REIVAC), Paris, France; Université Paris Descartes, Sorbonne Paris Cité, Inserm, CIC Cochin Pasteur, Assistance Publique Hôpitaux de Paris, Hôpital Cochin, Paris, France
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Perrot N, Moschetta D, Boekholdt SM, Valerio V, Martinsson A, Capoulade R, Mass E, Mathieu P, Bosse Y, Pibarot P, Smith JG, Camera M, Theriault Y, Poggio P, Arsenault B. P4667Loss of function in PCSK9, atherogenic lipoprotein concentrations, and calcific aortic valve stenosis. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.1049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 11/13/2022] Open
Abstract
Abstract
Background
Proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibition reduces plasma concentrations of most atherogenic lipoproteins such as low-density lipoprotein cholesterol (LDL-C), apolipoprotein B (apoB) and lipoprotein(a) [Lp(a)]. Atherogenic lipoprotein concentrations have also been linked with calcific aortic valve stenosis (CAVS).
Purpose
1) To determine the association between genetic variants in PCSK9 and lipoprotein-lipid levels, 2) to determine whether loss of function (LOF) in PCSK9 is associated with CAVS and 3) to evaluate if PCSK9 could be implicated in aortic valve interstitial cells (VICs) calcification.
Methods
We built a weighted genetic risk score (wGRS) using 10 single nucleotide polymorphisms at the PCSK9 locus associated with LDL-C in the Global Lipids Genetics Consortium. We determined the association between the wGRS and LDL-C, apoB and Lp(a)] in 9692 participants of the EPIC-Norfolk study using linear regression. We investigated the association between the LOF PCSK9 R46L variant and CAVS risk in a meta-analysis of published (three Copenhagen studies, 1463 cases and 101,620 controls) and unpublished studies (UK Biobank, 1350 cases and 349,043 controls, Malmö Diet and Cancer study, 682 cases and 5963 controls and EPIC-Norfolk, 508 cases and 20,421 controls) prospective, population-based studies using logistic regression adjusted for age and sex. We evaluated PCSK9 expression and localization in explanted aortic valves by capillary Western blot and immunohistochemistry in patients with and without CAVS. Von Kossa staining was used to visualize aortic leaflet calcium deposits. We also assessed VICs calcification potential under oxidative stress condition.
Results
In EPIC-Norfolk, the wGRS was significantly associated with TC, LDL-C, and apoB (all p<0.0001), but not with VLDL-C, HDL-C, triglycerides apoA-I, or Lp(a). Carriers of the R46L variant were at lower CAVS risk (odds ratio=0.71 (95% CI, 0.57–0.88, p<0.001)). Aortic valves of patients with aortic sclerosis (n=12) and CAVS (n=8) presented elevated PCSK9 levels (log2 fold change [FC]=+28.6±5.1, p=0.008 and FC=+39.3±15.2, p=0.02, respectively) compared to controls (n=4).In calcified leaflets, PCSK9 expression co-localized with calcium deposits. PCSK9 expression in VICs was induced by oxidative stress (FC=+2.3±0.4, p=0.02), and subsequent increment in calcification potential was observed.
Conclusion
PCSK9LOF variants are associated with lifelong reductions in non-Lp(a) apoB-containing lipoprotein levels and a lower risk of coronary artery disease and CAVS. PCSK9 is abundant in fibrotic and calcified aortic leaflets. Oxidative stress increases PCSK9 expression in VICs. These results support randomized clinical trials of PCSK9 inhibition in the prevention of CAVS.
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Affiliation(s)
- N Perrot
- Quebec Heart and Lung Institute research centre, Quebec, Canada
| | - D Moschetta
- Cardiology Center Monzino IRCCS, Milan, Italy
| | - S M Boekholdt
- Academic Medical Center of Amsterdam, Amsterdam, Netherlands (The)
| | - V Valerio
- Cardiology Center Monzino IRCCS, Milan, Italy
| | | | | | - E Mass
- University of Bonn, Bonn, Germany
| | - P Mathieu
- Quebec Heart and Lung Institute research centre, Quebec, Canada
| | - Y Bosse
- Quebec Heart and Lung Institute research centre, Quebec, Canada
| | - P Pibarot
- Quebec Heart and Lung Institute research centre, Quebec, Canada
| | - J G Smith
- Skane University Hospital, Lund, Sweden
| | - M Camera
- Cardiology Center Monzino IRCCS, Milan, Italy
| | - Y Theriault
- Quebec Heart and Lung Institute research centre, Quebec, Canada
| | - P Poggio
- Cardiology Center Monzino IRCCS, Milan, Italy
| | - B Arsenault
- Quebec Heart and Lung Institute research centre, Quebec, Canada
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Molimard C, Vuitton L, Boulahdour Z, Koch S, Chaigneau L, Mathieu P, Valmary-Degano S. Polypes œsophagiens : le polype géant fibrovasculaire de l’œsophage n’existe plus ! Ann Pathol 2019; 39:221-226. [DOI: 10.1016/j.annpat.2019.02.011] [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] [Received: 08/27/2018] [Revised: 11/23/2018] [Accepted: 02/22/2019] [Indexed: 02/07/2023]
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Devillers R, Bourgeois R, Perrot N, Boulanger M, Rosa M, Bossé Y, Thériault S, Pibarot P, Arsenault B, Mathieu P. AUTOTAXIN CARRIED BY LP(A): A NEW BIOMARKER OF THE CALCIFIC AORTIC VALVE STENOSIS. Can J Cardiol 2018. [DOI: 10.1016/j.cjca.2018.07.188] [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] Open
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Juhan I, Calas MF, Buonocore M, Mathieu P, Isnard G, Cazenave B, Serradimigni A. Modifications in Coagulation Parameters Induced by Treatment Associating Urokinase (2000 u CTA/kg/h) with Heparin. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1656984] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryTwenty-nine patients with deep venous thrombosis of the lower limbs were treated for 48 hours by intravenous infusion of urokinase (2000 u CTA/kg/h) and heparin (5 mg/kg/24 h).Plasma coagulation parameters were measured every 12 hours. After 36 hours of therapy the following results were obtained – decrease in: fibrinogen levels (9% fall), plasminogen (40% decrease), α2-macroglobulin (9% decrease, but no change during the first 12 hours) and fast acting α2-antiplasmin (60% decrease); bidimensional electrophoresis consistently revealed 2 spikes during treatment: the first corresponded to complexed plasmin-fast acting α2-antiplasmin, the second corresponded to free, unconsumed fast acting α2-antiplasmin. Levels of α1-antitrypsin increased by 20% whereas the antithrombin III level remained stable. FDP levels increased slightly. Recalcified plasma coagulation times progressively increased.Therapeutic results were evaluated on phlebography and showed, after 48 hours urokinase administration, improvement in 6 patients and no improvement in 17 cases. Consumption of plasminogen and production of FDP were both greater in the improved patient group.The authors discuss these results and suggest that the dosage level of urokinase used in this study should be modified; it is concluded that a therapeutic regimen associating a loading dose with higher hourly administration levels is needed to achieve neutralization of fast acting α2-antiplasmin, a prerequisite to development of thrombolytic activity.
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Affiliation(s)
- I Juhan
- The Lab. Central d’Hématologie (R. Muratore) - Marseille et Paris, France
- The Serv. de Cardiologie (A. Serradimigni) - Marseille et Paris, France
- The Clin, des Maladies du Sang (Y. Carcassonne) - Marseille et Paris, France
| | - M F Calas
- The Lab. Central d’Hématologie (R. Muratore) - Marseille et Paris, France
| | - M Buonocore
- The Lab. Central d’Hématologie (R. Muratore) - Marseille et Paris, France
| | - P Mathieu
- The Serv. de Cardiologie (A. Serradimigni) - Marseille et Paris, France
| | - G Isnard
- The Lab. Central d’Hématologie (R. Muratore) - Marseille et Paris, France
| | - B Cazenave
- The Lab. Central d’Hématologie (M. Samma) - Marseille et Paris, France
| | - A Serradimigni
- The Serv. de Cardiologie (A. Serradimigni) - Marseille et Paris, France
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Hervault M, Shen M, Clisson M, Boulanger M, Mathieu P, Clavel M. Sex-Related Differences in Aortic Stenosis Lesions are Present in Bicuspid and Tricuspid Aortic Valves. Can J Cardiol 2018. [DOI: 10.1016/j.cjca.2018.01.059] [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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15
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Bouchard M, Marsit O, Clavel M, Clisson M, Drolet M, Arsenault M, Couet J, Boulanger M, Mathieu P, Pibarot P, Beaudoin J. USE OF CARDIAC MAGNETIC RESONANCE TO IDENTIFY MITRAL VALVE FIBROTIC CHANGES AFTER MYOCARDIAL INFARCTION: VALIDATION IN A LARGE ANIMAL MODEL. Can J Cardiol 2017. [DOI: 10.1016/j.cjca.2017.07.378] [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] Open
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16
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Kim S, Paget-Bailly S, Messager M, Nguyen T, Mathieu P, Lamfichekh N, Fein F, Fratté S, Cléau D, Lakkis Z, Jary M, Sakek N, Jacquin M, Foubert A, Bonnetain F, Mariette C, Fiteni F, Borg C. Perioperative docetaxel, cisplatin, and 5-fluorouracil compared to standard chemotherapy for resectable gastroesophageal adenocarcinoma. Eur J Surg Oncol 2017; 43:218-225. [DOI: 10.1016/j.ejso.2016.06.395] [Citation(s) in RCA: 7] [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] [Received: 01/15/2016] [Revised: 04/20/2016] [Accepted: 06/18/2016] [Indexed: 10/21/2022] Open
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17
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Nsaibia MJ, Mahmut A, Boulanger MC, Arsenault BJ, Bouchareb R, Simard S, Witztum JL, Clavel MA, Pibarot P, Bossé Y, Tsimikas S, Mathieu P. Autotaxin interacts with lipoprotein(a) and oxidized phospholipids in predicting the risk of calcific aortic valve stenosis in patients with coronary artery disease. J Intern Med 2016; 280:509-517. [PMID: 27237700 DOI: 10.1111/joim.12519] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [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] [Indexed: 12/28/2022]
Abstract
BACKGROUND Studies have shown that lipoprotein(a) [Lp(a)], an important carrier of oxidized phospholipids, is causally related to calcific aortic valve stenosis (CAVS). Recently, we found that Lp(a) mediates the development of CAVS through autotaxin (ATX). OBJECTIVE To determine the predictive value of circulating ATX mass and activity for CAVS. METHODS We performed a case-control study in 300 patients with coronary artery disease (CAD). Patients with CAVS plus CAD (cases, n = 150) were age- and gender-matched (1 : 1) to patients with CAD without aortic valve disease (controls, n = 150). ATX mass and enzymatic activity and levels of Lp(a) and oxidized phospholipids on apolipoprotein B-100 (OxPL-apoB) were determined in fasting plasma samples. RESULTS Compared to patients with CAD alone, ATX mass (P < 0.0001), ATX activity (P = 0.05), Lp(a) (P = 0.003) and OxPL-apoB (P < 0.0001) levels were elevated in those with CAVS. After adjustment, we found that ATX mass (OR 1.06, 95% CI 1.03-1.10 per 10 ng mL-1 , P = 0.001) and ATX activity (OR 1.57, 95% CI 1.14-2.17 per 10 RFU min-1 , P = 0.005) were independently associated with CAVS. ATX activity interacted with Lp(a) (P = 0.004) and OxPL-apoB (P = 0.001) on CAVS risk. After adjustment, compared to patients with low ATX activity (dichotomized at the median value) and low Lp(a) (<50 mg dL-1 ) or OxPL-apoB (<2.02 nmol L-1 , median) levels (referent), patients with both higher ATX activity (≥84 RFU min-1 ) and Lp(a) (≥50 mg dL-1 ) (OR 3.46, 95% CI 1.40-8.58, P = 0.007) or OxPL-apoB (≥2.02 nmol L-1 , median) (OR 5.48, 95% CI 2.45-12.27, P < 0.0001) had an elevated risk of CAVS. CONCLUSION Autotaxin is a novel and independent predictor of CAVS in patients with CAD.
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Affiliation(s)
- M J Nsaibia
- Laboratory of Cardiovascular Pathobiology Quebec Heart and Lung Institute/Research Center, Department of Surgery, Quebec, Canada
| | - A Mahmut
- Laboratory of Cardiovascular Pathobiology Quebec Heart and Lung Institute/Research Center, Department of Surgery, Quebec, Canada
| | - M-C Boulanger
- Laboratory of Cardiovascular Pathobiology Quebec Heart and Lung Institute/Research Center, Department of Surgery, Quebec, Canada
| | - B J Arsenault
- Department of Medicine, Laval University, Quebec, Canada
| | - R Bouchareb
- Laboratory of Cardiovascular Pathobiology Quebec Heart and Lung Institute/Research Center, Department of Surgery, Quebec, Canada
| | - S Simard
- Statistical Consulting Service Unit at the Quebec Heart and Lung Institute/Research Center, Laval University, Quebec, Canada
| | - J L Witztum
- University of California San Diego, La Jolla, CA, USA
| | - M-A Clavel
- Department of Medicine, Laval University, Quebec, Canada
| | - P Pibarot
- Department of Medicine, Laval University, Quebec, Canada
| | - Y Bossé
- Department of Molecular Medicine, Laval University, Quebec, Canada
| | - S Tsimikas
- University of California San Diego, La Jolla, CA, USA
| | - P Mathieu
- Laboratory of Cardiovascular Pathobiology Quebec Heart and Lung Institute/Research Center, Department of Surgery, Quebec, Canada.
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Théberge F, Mathieu P, Thiré N, Daigle JF, Schmidt BE, Fortin J, Vallée R, Messaddeq Y, Légaré F. Mid-infrared nonlinear absorption in As 2S 3 chalcogenide glass. Opt Express 2016; 24:24600-24610. [PMID: 27828186 DOI: 10.1364/oe.24.024600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report mid-infrared (MIR) nonlinear absorption in As2S3 glasses which results from two-photon excitation of valence electron to the Urbach extension followed by strong linear absorption of excited states. The measured MIR nonlinear absorption can be 3 to 4 orders of magnitude stronger than the two-photon absorption in the near-infrared for similar laser intensities and does not result from contaminants, but it is intrinsic to As2S3 glasses. As2S3 fibers are widely used to generate supercontinuum by pumping them with high peak power laser pulses. For a 100 kilowatt peak power MIR soliton propagating in single mode As2S3 fiber, the nonlinear absorption can be of similar magnitude than the fiber background loss. Finally, for laser peak power around 1 MW, the MIR nonlinear absorption can be ~2 orders of magnitude larger than the fiber background loss in single mode As2S3 fiber.
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Huang YL, Supasai S, Kucera H, Gaikwad NW, Adamo AM, Mathieu P, Oteiza PI. Nutritional marginal zinc deficiency disrupts placental 11β-hydroxysteroid dehydrogenase type 2 modulation. Food Funct 2016; 7:84-92. [PMID: 26645329 DOI: 10.1039/c5fo01203a] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This paper investigated if marginal zinc nutrition during gestation could affect fetal exposure to glucocorticoids as a consequence of a deregulation of placental 11βHSD2 expression. Placenta 11β-hydroxysteroid dehydrogenase type 2 (11βHSD2) plays a central role as a barrier protecting the fetus from the deleterious effects of excess maternal glucocorticoids. Rats were fed control (25 μg zinc per g diet) or marginal (10 μg zinc per g diet, MZD) zinc diets from day 0 through day 19 (GD19) of gestation. At GD19, corticosterone concentration in plasma, placenta, and amniotic fluid was similar in both groups. However, protein and mRNA levels of placenta 11βHSD2 were significantly higher (25% and 58%, respectively) in MZD dams than in controls. The main signaling cascades modulating 11βHSD2 expression were assessed. In MZD placentas the activation of ERK1/2 and of the downstream transcription factor Egr-1 was low, while p38 phosphorylation and SP-1-DNA binding were low compared to the controls. These results point to a central role of ERK1/Egr-1 in the regulation of 11βHSD2 expression under the conditions of limited zinc availability. In summary, results show that an increase in placenta 11βHSD2 expression occurs as a consequence of gestational marginal zinc nutrition. This seems to be due to a low tissue zinc-associated deregulation of ERK1/2 rather than to exposure to high maternal glucocorticoid exposure. The deleterious effects on brain development caused by diet-induced marginal zinc deficiency in rats do not seem to be due to fetal exposure to excess glucocorticoids.
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Affiliation(s)
- Y L Huang
- Departments of Nutrition and Environmental Toxicology, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA.
| | - S Supasai
- Departments of Nutrition and Environmental Toxicology, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA.
| | - H Kucera
- Departments of Nutrition and Environmental Toxicology, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA.
| | - N W Gaikwad
- Departments of Nutrition and Environmental Toxicology, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA.
| | - A M Adamo
- Department of Biological Chemistry and IQUIFIB (UBA-CONICET), School of Pharmacy and Biochemistry, University of Buenos Aires, Buenos Aires, Argentina
| | - P Mathieu
- Department of Biological Chemistry and IQUIFIB (UBA-CONICET), School of Pharmacy and Biochemistry, University of Buenos Aires, Buenos Aires, Argentina
| | - P I Oteiza
- Departments of Nutrition and Environmental Toxicology, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA.
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Fiteni F, Paget-Bailly S, Messager M, N'Guyen T, Lakkis Z, Mathieu P, Lamfichekh N, Picard A, Benzidane B, Cléau D, Bonnetain F, Borg C, Mariette C, Kim S. Docetaxel, Cisplatin, and 5-Fluorouracil as perioperative chemotherapy compared with surgery alone for resectable gastroesophageal adenocarcinoma. Cancer Med 2016; 5:3085-3093. [PMID: 27726290 PMCID: PMC5119963 DOI: 10.1002/cam4.885] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 07/26/2016] [Accepted: 07/31/2016] [Indexed: 12/25/2022] Open
Abstract
Docetaxel, cisplatin, and 5‐fluorouracil (DCF) significantly improved overall survival in metastatic gastroesophageal adenocarcinoma (GEA). The aim of this study was to assess efficacy of DCF regimen as perioperative chemotherapy compared with surgery alone in patients with resectable GEA. We identified 789 patients who underwent surgery alone and 62 patients who received at least one cycle of DCF regimen consisting of docetaxel (75 mg/m2 on day 1), cisplatin (75 mg/m2 on day 1), and 5‐fluorouracil (750 mg/m2/day on continuous perfusion on days 1 to 5), every 3 weeks. Overall survival was compared using Cox proportional hazards regression model with adjustments for confounding factors provided by two propensity score methods: inverse probability of treatment weighting (IPTW) and matched‐pair analysis. In Cox multivariate analysis weighted by IPTW, DCF group was associated with favorable overall survival (OS) compared with the surgery group (HR = 0.59; 95% CI, 0.45–0.78; P = 0.0003). For the matched‐pair analysis (comparing 41 patients for each group with the same baseline characteristics), median OS was 22 months and 57 months for the surgery group and DCF group, respectively (log‐rank P = 0.0011). In Cox multivariate analysis, DCF group was associated with favorable OS compared with the surgery group (HR = 0.29; 95% IC, 0.14–0.64; P = 0.0019). In the matched‐pair population, major complications (Dindo‐Clavien grade 3–5) arose in six patients (14.63%) in the DCF group and seven patients (17.07%) in the surgery group (P = 1). Perioperative DCF chemotherapy is superior to surgery alone in terms of OS. A randomized phase III trial should compare DCF to standard perioperative regimens.
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Affiliation(s)
- Frédéric Fiteni
- Department of Medical Oncology, University Hospital of Besançon, Besançon, France.,Methodology and Quality of Life in Oncology Unit, University Hospital of Besançon, Besançon, France
| | - Sophie Paget-Bailly
- Methodology and Quality of Life in Oncology Unit, University Hospital of Besançon, Besançon, France
| | - Mathieu Messager
- Lille University Hospital, Department of Digestive Surgery, Lille, France.,FREGAT (French Esophageal and Gastric Tumour) working group, Paris, France
| | - Thierry N'Guyen
- Department of Medical Oncology, University Hospital of Besançon, Besançon, France
| | - Zaher Lakkis
- Department of Digestive Surgery and Liver Transplantation, University Hospital of Besançon, Besançon, France
| | - Pierre Mathieu
- Department of Digestive Surgery and Liver Transplantation, University Hospital of Besançon, Besançon, France
| | - Najib Lamfichekh
- Department of Surgery, Nord Franche Comté Hospital, Montbeliard, France
| | - Alain Picard
- Department of Surgery, Nord Franche Comté Hospital, Belfort, France
| | - Bilell Benzidane
- Department of Oncology and Radiotherapy, Nord Franche Comté Hospital, Montbeliard, France
| | - Denis Cléau
- Department of Gastroenterology, Hospital of Vesoul, Vesoul, France
| | - Franck Bonnetain
- Methodology and Quality of Life in Oncology Unit, University Hospital of Besançon, Besançon, France.,University of Franche-Comté, Besançon, EA 3181, France
| | - Christophe Borg
- Department of Medical Oncology, University Hospital of Besançon, Besançon, France.,Unit 1098, INSERM, University of Franche-Comté, Besançon, France.,Clinical Investigational Center, University Hospital of Besançon, CIC-1431, France
| | - Christophe Mariette
- Lille University Hospital, Department of Digestive Surgery, Lille, France.,FREGAT (French Esophageal and Gastric Tumour) working group, Paris, France
| | - Stefano Kim
- Department of Medical Oncology, University Hospital of Besançon, Besançon, France.,Unit 1098, INSERM, University of Franche-Comté, Besançon, France.,Clinical Investigational Center, University Hospital of Besançon, CIC-1431, France
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Boyer M, Auclair A, Mathieu P, Poirier P, Piché M, Arsenault B. IMPACT OF BARIATRIC SURGERY ON PLASMA LDL CHOLESTEROL AND PCSK9 LEVELS IN PATIENTS WITH SEVERE OBESITY. Can J Cardiol 2016. [DOI: 10.1016/j.cjca.2016.07.353] [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: 10/20/2022] Open
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Mkannez G, Nsaibia M, Amellah S, Boulanger M, Pibarot P, Bosse Y, Mathieu P. LIPID PHOSPHATE PHOSPHATASE 3 IS NEGATIVELY REGULATED IN CALCIFIC AORTIC VALVE STENOSIS. Can J Cardiol 2016. [DOI: 10.1016/j.cjca.2016.07.446] [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] Open
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Tastet L, Capoulade R, Shen M, Clavel M, Côté N, Mathieu P, Arsenault M, Bédard É, Beaudoin J, Bernier M, Dumesnil J, Després J, Pibarot P. HIGHER APOLIPOPROTEIN B / APOLIPOPROTEIN A-I RATIO IS ASSOCIATED WITH FASTER HEMODYNAMIC PROGRESSION OF AORTIC STENOSIS IN YOUNGER PATIENTS - RESULTS FROM THE PROGRESSA STUDY-. Can J Cardiol 2016. [DOI: 10.1016/j.cjca.2016.07.402] [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] Open
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Bouchareb R, Boulanger M, Pibarot P, Mathieu P, Bossé Y. ROLE OF P2Y2R-SRC-FILAMIN A PATHWAY DURING MECHANICAL STRESS-INDUCED MINERALIZATION OF VALVE INTERSTITIAL CELLS: IMPLICATION FOR BICUSPIDE AORTIC VALVE. Can J Cardiol 2016. [DOI: 10.1016/j.cjca.2016.07.443] [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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Perrot N, Boyer M, Lévesque V, Poirier P, Marette A, Mathieu P, Després J, Larose E, Arsenault B. IMPACT OF 1-YEAR LIFESTYLE MODIFICATION PROGRAM ON PLASMA LIPOPROTEIN(A) LEVELS IN PATIENTS WITH CORONARY ARTERY DISEASE. Can J Cardiol 2016. [DOI: 10.1016/j.cjca.2016.07.359] [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] Open
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Simard L, Côté N, Pibarot P, Dagenais F, Mathieu P, Couture C, Trahan S, Bossé Y, Mohammadi S, Pagé S, Joubert P, Clavel M. SEX-RELATED HISTOLOGICAL DISCREPANCIES IN AORTIC STENOSIS: CONTRIBUTION OF VALVULAR FIBROSIS TO THE PATHOPHYSIOLOGY OF THE DISEASE. Can J Cardiol 2016. [DOI: 10.1016/j.cjca.2016.07.422] [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: 10/20/2022] Open
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Conrozier T, Patarin J, Mathieu P, Rinaudo M. Steroids, lidocain and ioxaglic acid modify the viscosity of hyaluronic acid: in vitro study and clinical implications. Springerplus 2016; 5:170. [PMID: 27026867 PMCID: PMC4766165 DOI: 10.1186/s40064-016-1762-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 02/12/2016] [Indexed: 01/18/2023]
Abstract
Background Viscosupplementaion by intra-articular injection of hyaluronic acid (HA) is a therapeutic modality for treating osteoarthritis of the knee, of the hip and less frequently of other joints. During viscosupplementation, it is usual to inject other drugs, without knowing whether this association may have a deleterious effect thereon. The rheological properties of a viscosupplement are highly dependent on the product [molecular weight × concentration] of HA. Therefore, any reduction of its viscoelastic properties is related either to a decrease of its concentration or/and of its molecular weight. The presence of other molecules can create favorable or unfavorable molecular interactions with HA. The objective of the study was to investigate the effect of products, that are commonly associated with HA (corticosteroids, lidocain, iodinated contrast media), on the rheological behavior of HA, then to try drawing practical conclusions. Methods The rheological behavior of both a linear and a cross-linked HA, was studied before and after mixing with different volumes (ratio 1:0.5–1:4) of the following compounds: phosphate buffered saline (PBS, as a control), cortivazol, triamcinolone hexacetonide, lidocain chlorhydrate and meglumine ioxaglate. The flow curve of the different samples was obtained using a measuring method based on a constant shear rate. Results Whatever the dilution and the added molecule were, viscosity of the cross-linked viscosupplement remained much higher than that of the linear one. Addition of PBS at a ratio 1:1 caused a dramatic decrease (up to 97.5 %) of HA viscosity. Cortivazol and lidocain had a similar effect than PBS on linear HA. Both were much deleterious on cross-linked HA viscosity. Among corticosteroids, triamcinolone decreased much less HA viscosity than cortivazol. The effect of meglumine ioxaglate was dose-dependent. Up to a ratio 1:1 viscosity of the linear HA remained above the dilution effect. On the cross-linked HA, the deleterious effect of the contrast agent was evident as soon as a ratio 1:1 and became very marked at 1:2. Conclusion HA viscosity varies widely in presence of other molecules. These changes are due to both dilution and molecular interactions. This study suggests that addition of other molecules with HA can lead to a major decrease of its viscosity. However, provided to respect a maximum ratio of 1:1, the contrast medium and triamcinolone seem to have no major deleterious effect on the viscosity level, especially on crosslinked HA. The study also suggests a deleterious effect of lidocain on the cross-linked HA. These in vitro data suggest that drugs associations must be avoided when they are not essential. However, clinical trials are needed to determine whether these rheological changes may have a significant impact on the clinical outcome.
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Affiliation(s)
- Thierry Conrozier
- Service de rhumatologie, Hôpital Nord Franche-Comté, 14 rue de Mulhouse, 90000 Belfort, France
| | - Jeremy Patarin
- Rhéonova, Domaine Universitaire, 363, rue de la chimie, 38400 Saint Martin d'Hères, France
| | - Pierre Mathieu
- Laboratoire de Rhumatologie Appliquée, 19 place Tolozan, 69001 Lyon, France
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Simard L, Dagenais F, Pibarot P, Mathieu P, Mahmut A, Couture C, Mohammadi S, Trahan S, Pagé S, Joubert P, Clavel M. IMPACT OF SEX ON AORTIC VALVE CALCIFICATION AND FIBROSIS IN AORTIC STENOSIS. Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.643] [Citation(s) in RCA: 3] [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: 10/22/2022] Open
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Hadji F, Boulanger M, É Lavoie-Charland, Gaudreault N, Guauque-Olarte S, Bouchareb R, Bouchard L, Bossé Y, Mathieu P. LONG NON-CODING RNAS AND OSTEOGENIC TRANSDIFFERENTIATION: ROLE IN THE CALCIFIC AORTIC VALVE STENOSIS. Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.483] [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] Open
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Nsaibia M, Boulanger M, Mathieu P. LYSOPHOSPHATIDIC ACID ACTIVATES BMP2 GENE PROMOTER THROUGH A RHOA-PHOSPHORYLATED P65 SERINE 536 PATHWAY IN AORTIC VALVE INTERSTITIAL CELLS: IMPLICATION FOR CALCIFIC AORTIC VALVE DISEASE. Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.582] [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] Open
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Tastet L, Capoulade R, Larose E, Dumesnil J, Shen M, Dahou A, Arsenault M, Bédard E, Després J, Mathieu P, Clavel M, Pibarot P. SYSTOLIC HYPERTENSION AND PROGRESSION OF AORTIC VALVE CALCIFICATION IN PATIENTS WITH AORTIC STENOSIS - RESULTS FROM THE PROGRESSA STUDY. Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.154] [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] Open
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Pauchot J, Di Tommaso L, Lounis A, Benassarou M, Mathieu P, Bernot D, Aubry S. Leap Motion Gesture Control With Carestream Software in the Operating Room to Control Imaging: Installation Guide and Discussion. Surg Innov 2015; 22:615-20. [PMID: 26002115 DOI: 10.1177/1553350615587992] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [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: 11/15/2022]
Abstract
Nowadays, routine cross-sectional imaging viewing during a surgical procedure requires physical contact with an interface (mouse or touch-sensitive screen). Such contact risks exposure to aseptic conditions and causes loss of time. Devices such as the recently introduced Leap Motion (Leap Motion Society, San Francisco, CA), which enables interaction with the computer without any physical contact, are of wide interest in the field of surgery, but configuration and ergonomics are key challenges for the practitioner, imaging software, and surgical environment. This article aims to suggest an easy configuration of Leap Motion on a PC for optimized use with Carestream Vue PACS v11.3.4 (Carestream Health, Inc, Rochester, NY) using a plug-in (to download at https://drive.google.com/open?id=0B_F4eBeBQc3yNENvTXlnY09qS00&authuser=0) and a video tutorial (https://www.youtube.com/watch?v=yVPTgxg-SIk). Videos of surgical procedure and discussion about innovative gesture control technology and its various configurations are provided in this article.
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Affiliation(s)
- Julien Pauchot
- Orthopedic, Traumatology, Aesthetic, Plastic, Reconstructive and Hand Surgery Unit, University Hospital of Besançon, Besançon, France
| | - Laetitia Di Tommaso
- Neurosurgery Department, University Hospital of Besançon, University of Franche-Comté, Besançon, France
| | - Ahmed Lounis
- Department of Musculoskeletal Imaging, University Hospital of Besançon, University of Franche-Comté, Besançon, France
| | - Mourad Benassarou
- MaxilloFacial and Stomatology Department, University Hospital of Besançon, University of Franche-Comté, Besançon, France
| | - Pierre Mathieu
- Liver Transplantation and Digestive Surgery Unit, University Hospital of Besançon, University of Franche-Comté, Besançon, France
| | - Dominique Bernot
- Informatics Department, University Hospital of Besançon, University of Franche-Comté, Besançon, France
| | - Sébastien Aubry
- Department of Musculoskeletal Imaging, University Hospital of Besançon, University of Franche-Comté, Besançon, France
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Blondeau-Fournier O, Desrosiers P, Mathieu P. Supersymmetric Ruijsenaars-Schneider model. Phys Rev Lett 2015; 114:121602. [PMID: 25860733 DOI: 10.1103/physrevlett.114.121602] [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] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Indexed: 06/04/2023]
Abstract
An integrable supersymmetric generalization of the trigonometric Ruijsenaars-Schneider model is presented whose symmetry algebra includes the super Poincaré algebra. Moreover, its Hamiltonian is shown to be diagonalized by the recently introduced Macdonald superpolynomials. Somewhat surprisingly, the consistency of the scalar product forces the discreteness of the Hilbert space.
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Affiliation(s)
- O Blondeau-Fournier
- Département de physique, de génie physique et d'optique, Université Laval, Québec, Canada G1V 0A6
| | - P Desrosiers
- Département de physique, de génie physique et d'optique, Université Laval, Québec, Canada G1V 0A6
- CRIUSMQ, 2601 de la Canardière, Québec, Canada G1J 2G3
| | - P Mathieu
- Département de physique, de génie physique et d'optique, Université Laval, Québec, Canada G1V 0A6
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Théberge F, Thiré N, Daigle JF, Mathieu P, Schmidt BE, Messaddeq Y, Vallée R, Légaré F. Multioctave infrared supercontinuum generation in large-core As₂S₃ fibers. Opt Lett 2014; 39:6474-6477. [PMID: 25490497 DOI: 10.1364/ol.39.006474] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We report on infrared supercontinuum (SC) generation through laser filamentation and subsequent nonlinear propagation in a step-index As2S3 fiber. The 100 μm core and high-purity As2S3 fiber used exhibit zero-dispersion wavelength around 4.5 μm, a mid-infrared background loss of 0.2 dB/m, and a maximum loss of only 0.55 dB/m at the S-H absorption peak around 4.05 μm. When pumping with ultrashort laser pulses slightly above the S-H absorption band, broadband infrared supercontinua were generated with a 20 dB spectral flatness spanning from 1.5 up to 7 μm. The efficiency and spectral shape of the SC produced by ultrashort pulses in large-core As2S3 fiber are mainly determined by its dispersion, the S-H contaminant absorption, and the mid-infrared nonlinear absorption.
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Shayhidin E, Forcellini E, Boulanger M, Mahmut A, Dautrey S, Barbeau X, Lague P, Sévigny J, Paquin J, Mathieu P. QUINAZOLIN-4-PIPERIDIN-4-METHYL SULFAMIDE COMPOUNDS ARE SPECIFIC INHIBITORS OF HUMAN NPP1 AND PREVENT CALCIFICATION OF VALVE INTERSTITIAL CELLS. Can J Cardiol 2014. [DOI: 10.1016/j.cjca.2014.07.421] [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: 11/27/2022] Open
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Carter S, Capoulade R, Arsenault M, É Bédard, Dumesnil J, Mathieu P, Pibarot P, Picard F. ASSOCIATION BETWEEN INSULIN-LIKE GROWTH FACTOR BINDING PROTEIN-2 AND LEFT VENTRICULAR STROKE VOLUME IN PATIENTS WITH AORTIC STENOSIS. Can J Cardiol 2014. [DOI: 10.1016/j.cjca.2014.07.362] [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: 10/24/2022] Open
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Bouchareb R, Côté N, Boulanger M, Khai L, Diala E, Jérémie A, Fayez H, Lachance D, Mahmut A, Pibarot P, Bossé Y, Messaddeq Y, Boudreau D, Marette A, Mathieu P. REGRESSION OF CALCIFIC AORTIC VALVE STENOSIS: A NOVEL FUNCTION FOR VALVE INTERSTITIAL CELLS AND CARBONIC ANHYDRASE XII. Can J Cardiol 2014. [DOI: 10.1016/j.cjca.2014.07.422] [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: 10/24/2022] Open
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Capoulade R, Tastet L, Dahou A, Arsenault M, É Bédard, Dumesnil J, Mathieu P, Pibarot P. ASSOCIATION BETWEEN ANGIOTENSINOGEN PLASMA LEVELS AND PROGRESSION OF LEFT VENTRICULAR HYPERTROPHY IN PATIENTS WITH AORTIC STENOSIS - THE PROGRESSA STUDY. Can J Cardiol 2014. [DOI: 10.1016/j.cjca.2014.07.369] [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: 10/24/2022] Open
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Dery J, Dagenais F, Mohammadi S, Kalavrouziotis D, Garcia-Labbé D, Jacques F, Baillot R, Doyle D, Perron J, Mathieu P, Charbonneau E, Dumont E, Metras J, Voisine P. RISK OF BLEEDING COMPLICATIONS IN PATIENTS TREATED WITH TICAGRELOR UNDERGOING URGENT CORONARY ARTERY BYPASS GRAFTING SURGERY: A SINGLE CENTER EXPERIENCE. Can J Cardiol 2014. [DOI: 10.1016/j.cjca.2014.07.595] [Citation(s) in RCA: 2] [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: 11/15/2022] Open
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Shen M, Tastet L, Capoulade R, É Larose, É Bédard, Arsenault M, Chetaille P, Dumesnil J, Mathieu P, Pibarot P. IMPACT OF BICUSPID VERSUS TRICUSPID AORTIC VALVE PHENOTYPE ON THE RELATIONSHIP BETWEEN AORTIC VALVE CALCIFICATION MEASURED BY CT AND THE DOPPLER-ECHOCARDIOGRAPHIC PARAMETERS OF AORTIC STENOSIS SEVERITY -PROGRESSA STUDY. Can J Cardiol 2014. [DOI: 10.1016/j.cjca.2014.07.444] [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] Open
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Cazorla A, Grenouillet F, Piton G, Faure É, Delabrousse É, Mathieu P, Viennet G, Kantelip B, Millon L, Valmary-Degano S. Une forme gastro-intestinale de basidiobolomycose d’évolution fatale. Ann Pathol 2014; 34:228-32. [PMID: 24950873 DOI: 10.1016/j.annpat.2014.03.006] [Citation(s) in RCA: 3] [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] [Received: 08/10/2012] [Revised: 08/16/2013] [Accepted: 03/18/2014] [Indexed: 10/25/2022]
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Jary M, Ghiringhelli F, Jacquin M, Fein F, Nguyen T, Cleau D, Nerich V, El Gani M, Mathieu P, Valmary-Degano S, Arnould L, Lassabe C, Lamfichekh N, Fratté S, Paget-Bailly S, Bonnetain F, Borg C, Kim S. Phase II multicentre study of efficacy and feasibility of dose-intensified preoperative weekly cisplatin, epirubicin, and paclitaxel (PET) in resectable gastroesophageal cancer. Cancer Chemother Pharmacol 2014; 74:141-50. [PMID: 24824852 DOI: 10.1007/s00280-014-2482-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Accepted: 05/06/2014] [Indexed: 12/13/2022]
Abstract
BACKGROUND Perioperative chemotherapy improves the overall survival of resectable gastroesophageal adenocarcinoma (GEA) patients. However, more than 40 % of the patients are not healthy enough to complete their post-operative chemotherapy, and the progression-free survival rate is lower than 35 % at 5 years. In order to optimise neoadjuvant chemotherapy regimen, a pilot study of weekly dose-intensified cisplatin, epirubicin, and paclitaxel (PET) was conducted. The primary objective was a complete resection (R0) rate. Then, a R0 rate ≤80 % was considered as uninteresting, with an expected R0 rate of 92 %. Secondary objectives were the feasibility, safety, histological response rate (Becker score), and survival (Trial registration: NCT01830270). METHODS Patients with >T1N0M0 GEA were included. Treatment consisted of eight preoperative cycles of weekly PET regimen at 30/50/80 mg/m² of cisplatin, epirubicin, and paclitaxel, respectively. Primary prophylaxis by granulocyte colony-stimulating factor was administered. Surgery was performed 4-6 weeks following the last cycle of chemotherapy. Using Fleming two-step design with a unilateral alpha type one error of 5 % and a statistical power of 80 %, it would be required to include 68 patients. At planned interim analysis for futility, it was required to observe at least 25 of 29 patients with R0 resection to pursue inclusion. At the second step, it was required to observe at least 61 of 68 patients with R0 resection to conclude for promising activity of the dose-intensified chemotherapy. RESULTS Between May 2011 and January 2013, 29 patients were enrolled. Median age was 62 years (range 39-83 years), and seven (24 %) patients presented signet-ring cell histology. Twenty-seven (93 %) patients underwent surgery. Pathological complete responses (Becker score 1a) were observed in four patients, and nearly complete responses (Becker score 1b) for additional three patients. A R0 rate was achieved for 24 of 29 (82.7 %; 95 % CI 64-94 %) patients. No Becker score 1a/1b response was observed among patients with signet-ring cell GEA. Twenty-one (72 %) patients completed all eight cycles, and 86 % received seven or more cycles. Sixteen (56 %) patients experienced grade 3-4 neutropenia, and five patients had febrile neutropenia. Among non-haematological toxicities, mucositis and fatigue were the most frequent ones. The median-delivered relative dose intensity (DI) was 80 % for cisplatin, 75 % for epirubicin, and 79 % for paclitaxel. However, only 45 % of the patients received at least 80 % of the planned median DI for all three drugs. CONCLUSIONS Despite high R0 and pathological response rates, neoadjuvant PET chemotherapy did not meet the primary end-point and failed to show an acceptable relative DI. PET chemotherapy is not recommended in resectable GEA patients.
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Affiliation(s)
- Marine Jary
- Department of Medical Oncology, University Hospital of Besançon, Besançon, France
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Mariette C, Wind P, Micelli Lupinacci R, Tresallet C, Adham M, Arvieux C, Benoist S, Berdah S, Berger A, Briez N, Brigand C, Caiazzo R, Carrere N, Casa C, Collet D, Deguelte S, Dousset B, Dubuisson V, Glehen O, Gineste JC, Hamy A, Lacaine F, Laurent C, Lehur PA, Mabrut JY, Mathieu P, Mathonnet M, Meunier B, Michot F, Ouaissi M, Palot JP, Parc Y, Pattou F, Paye F, Pezet D, Piessen G, Pocard M, Regenet N, Regimbeau JM, Sabbagh C, Zerbib P, Toussaint JM. Practice patterns in complex ventral hernia repair and place of biological grafts: A national survey among French digestive academic surgeons. J Visc Surg 2014; 151:9-16. [DOI: 10.1016/j.jviscsurg.2013.12.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [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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Conrozier T, Mathieu P, Bonjean M, Marc JF, Renevier JL, Balblanc JC. A complex of three natural anti-inflammatory agents provides relief of osteoarthritis pain. Altern Ther Health Med 2014; 20 Suppl 1:32-37. [PMID: 24473984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
BACKGROUND Devil's claw (Harpagophytum procumbens), turmeric (Curcuma longa), and bromelain are nutraceuticals that have demonstrated anti-inflammatory and analgesic properties and may be potential solutions in the treatment of acute or chronic joint pain. Their analgesic effect, however, is generally considered mild to moderate, and the relevance of their clinical use remains subject to discussion. OBJECTIVES The aim of the study was to evaluate the clinical relevance of the efficacy of a marketed complex of 3 plant extracts-H procumbens, C longa, and bromelain (AINAT, 650 mg)-in the treatment of degenerative joint pain. METHODS A multicenter, observational, prospective, open-label survey was conducted in 8 rheumatology centers. The study included 2 groups, 1 group with participants suffering from chronic osteoarthritis (OA) pain and 1 group suffering from acute OA pain. SETTING The research team carried out the study under daily practice conditions. PARTICIPANTS A total of 42 patients (36 women; mean age = 67 y) suffering from acute or chronic, degenerative spine or joint pain participated. INTERVENTION Two 650-mg capsules of AINAT were administered 3 ×/d to patients with acute pain and 2 ×/d to patients with chronic pain. OUTCOME MEASURES At baseline, and during a follow-up visit at 15 d for the acute pain group and 60 d for the chronic pain group, the research team obtained each participant's global assessment (PGA) and each rheumatologist's global assessment (RGA), as well as each participant's pain score, using for each of them a 100-mm visual analogue scale (VAS). The clinical relevance of the efficacy was evaluated by comparing the outcome measures at endpoint to the values defining the patient acceptable symptom state (PASS) and by comparing the variations (in mm and %) between baseline and endpoint to those defining the minimal clinically important improvement (MCII). Tolerance was also assessed by collecting adverse events at each visit and by using a 4-point scale (very good to bad) at the endpoint. RESULTS At baseline, the VAS pain score (standard deviation) was 69.1 mm (15.4) and 68.0 mm (18.2) for patients with acute and chronic pain, respectively. At the endpoint, the scores decreased to 42.1 mm (21.1) and 37.8 mm (25.9), respectively. This reduction of pain, as a percentage as well as an absolute value, corresponds to the required definition of MCII, particularly in patients with chronic joint pain. At the endpoint, most of the patients in both groups reached the level of pain defined as the PASS. No withdrawals occurred due to treatment side effects. CONCLUSION The improvement of joint pain was clinically relevant in patients treated with AINAT for both acute and chronic OA pain. Considering its excellent tolerance profile, the tested complex of 3 plant extracts with antiinflammatory properties may be a valuable and safe alternative to NSAIDs in patients suffering from degenerative joint diseases.
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Théberge F, Daigle JF, Vincent D, Mathieu P, Fortin J, Schmidt BE, Thiré N, Légaré F. Mid-infrared supercontinuum generation in fluoroindate fiber. Opt Lett 2013; 38:4683-4685. [PMID: 24322105 DOI: 10.1364/ol.38.004683] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We report the generation of mid-infrared supercontinua in a step-index fluoroindate-based fiber. The large core of the fluoroindate fiber allows the guiding of multiwatt laser power over a broad spectral range. These fibers exhibit zero dispersion at 1.83 μm, minimal loss of 0.1 dB/m at 3.2 μm up to only 0.8 dB/m at 5 μm. These specifications enable mid-infrared supercontinuum generation and propagation with low loss. By using mid-infrared ultrashort laser pulses from an optical parametric amplifier, we demonstrate generation of a 20 dB spectral flatness supercontinua from 2.7 to 4.7 μm in the fluoroindate fiber, which is twice the spectral broadening compared to a ZBLAN fiber under similar conditions.
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Abulajiang M, Mahjoub H, Fournier D, Bouchareb M, Pibarot P, Mathieu P. Blood Plasma LP-PLA2 Activity Is Associated With an Increased Risk of Bioprosthetic Valve Degeneration. Can J Cardiol 2013. [DOI: 10.1016/j.cjca.2013.07.266] [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] Open
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Bouchareb R, Côté N, Boulanger M, Mahmut A, Pibarot P, Asselin J, Messaddeq Y, Bossé Y, Mathieu P. P2Y2 Receptor-Mediated Expression of Carbonic Anhydrase XII and Functional Interaction With SLC4A3/AE3 Promotes Regression of Valve Mineralisation in Calcific Aortic Valve Disease. Can J Cardiol 2013. [DOI: 10.1016/j.cjca.2013.07.331] [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] Open
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Dahou A, Clavel M, Capoulade R, Bartko P, Magne J, Mundigler G, Bergler-Klein J, Burwash I, Ribeiro H, O'Connor K, Baumgartner H, Sénéchal M, Dumesnil J, Mathieu P, Larose É, Rodés-Cabu J, Pibarot P. Impact of Right Ventricular Longitudinal Strain on Outcome in Patients With Low-Flow Low-Gradient Aortic Stenosis -Results From the Topas Study-. Can J Cardiol 2013. [DOI: 10.1016/j.cjca.2013.07.605] [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] Open
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