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Gaillard M, Van den Broeck S, Op de Beeck B, Wouters K, Stijns J, Van de Putte D, Gys B, Houben B, Van Dessel E, Bislenghi G, Komen N. Protocol of the LATFIA trial (Laser Assisted Treatment of Fistula in Ano): a multicentre, prospective, randomized controlled trial comparing fistula-tract laser closure (FiLaC™) with rectal advancement flap for high trans-sphincteric fistulas. Colorectal Dis 2024. [PMID: 38499516 DOI: 10.1111/codi.16951] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/11/2024] [Accepted: 02/23/2024] [Indexed: 03/20/2024]
Abstract
AIM Anal fistula is one of the most common anal diseases, affecting between 1 and 3 per 10 000 people per year. Symptoms have a potentially severe effect on a patient's quality of life. Surgery is the mainstay of treatment, aiming to cure the fistula and preserve anal sphincter function. Rectal advancement flap (RAF) is currently the gold standard treatment but has recurrence rates varying between 20% and 50% and might lead to disturbance of continence. The aim of the trial described in this work is to discover if the minimally invasive fistula tract laser closure (FiLaC™) technique could achieve higher healing rates and a better functional outcome than RAF. METHOD We will perform a randomized prospective multicentre noninferiority study of the treatment of high trans-sphincteric perianal fistulas, comparing FiLaC™ with RAF in terms of fistula healing, recurrence rate, functional outcome and quality of life. Primary and secondary fistula healing will be evaluated at 26 and 52 weeks' follow-up. Quality of life will be evaluated using the SF-36 questionnaire, the Faecal Incontinence Quality of Life Scale questionnaire and the Vaizey score at 3, 6, 12 and 26 weeks postoperatively. CONCLUSION High trans-sphincteric fistulas have a potentially severe effect on a patient's quality of life. Classical treatment with RAF is a time-consuming invasive procedure. The LATFIA trial aims to compare FiLaC™ with the gold standard treatment with RAF. In case of noninferiority, FiLaC™ treatment could be standardized as a first line treatment for high trans-sphincteric fistulas. Better conservation of the patient's anal sphincter function could possibly be obtained. Likewise, we will report on the postoperative quality of life when applying these two techniques.
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Affiliation(s)
- Marie Gaillard
- Department of Abdominal Surgery, Antwerp University Hospital, Edegem, Belgium
- Antwerp ReSURG, Antwerp Surgical Training, Anatomy and Research Centre (ASTARC), Faculty of Medicine and Health Sciences, University of Antwerp, Wilrijk, Belgium
| | - Sylvie Van den Broeck
- Department of Abdominal Surgery, Antwerp University Hospital, Edegem, Belgium
- Antwerp ReSURG, Antwerp Surgical Training, Anatomy and Research Centre (ASTARC), Faculty of Medicine and Health Sciences, University of Antwerp, Wilrijk, Belgium
| | - Bart Op de Beeck
- Department of Radiology, Antwerp University Hospital, Edegem, Belgium
| | - Kristien Wouters
- Clinical Trial Center, Antwerp University Hospital, Edegem, Belgium
| | - Jasper Stijns
- Department of Abdominal Surgery, University Hospital Brussels, Jette, Belgium
| | - Dirk Van de Putte
- Department of Abdominal Surgery, University Hospital Ghent, Ghent, Belgium
| | - Ben Gys
- Department of Abdominal Surgery, Hospital St. Dimpna, Geel, Belgium
| | - Bert Houben
- Department of Abdominal Surgery, Jessa Hospital, Hasselt, Belgium
| | - Els Van Dessel
- Department of Abdominal Surgery, GasthuisZusters Hospital, Antwerp, Belgium
| | - Gabriele Bislenghi
- Department of Abdominal Surgery, University Hospital Leuven, Leuven, Belgium
| | - Niels Komen
- Department of Abdominal Surgery, Antwerp University Hospital, Edegem, Belgium
- Antwerp ReSURG, Antwerp Surgical Training, Anatomy and Research Centre (ASTARC), Faculty of Medicine and Health Sciences, University of Antwerp, Wilrijk, Belgium
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Sabbagh C, Beyer-Berjot L, Ouaissi M, Zerbib P, Bridoux V, Manceau G, Karoui M, Panis Y, Buscail E, Venara A, Khaoudy I, Gaillard M, Ortega-Deballon P, Viennet M, Thobie A, Menahem B, Eveno C, Bonnel C, Mabrut JY, Badic B, Godet C, Eid Y, Duchalais E, Lakkis Z, Cotte E, Laforest A, Defourneaux V, Maggiorri L, Rebibo L, Christou N, Talal A, Mege D, Bonnamy C, Germain A, Mauvais F, Tresallet C, Ahmed O, Regimbeau JM, Roudie J, Laurent A, Trilling B, Bertrand M, Massalou D, Romain B, Tranchart H, Giger U, Dejardin O, Pellegrin A, Alves A. Risk factors for severe morbidity and definitive stoma after elective surgery for sigmoid diverticulitis: a multicenter national cohort study. Tech Coloproctol 2024; 28:34. [PMID: 38369674 DOI: 10.1007/s10151-023-02906-y] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 12/18/2023] [Indexed: 02/20/2024]
Abstract
BACKGROUND In the decision to perform elective surgery, it is of great interest to have data about the outcomes of surgery to individualize patients who could safely undergo sigmoid resection. The aim of this study was to provide information on the outcomes of elective sigmoid resection for sigmoid diverticular disease (SDD) at a national level. METHODS All consecutive patients who had elective surgery for SDD (2010-2021) were included in this retrospective, multicenter, cohort study. Patients were identified from institutional review board-approved databases in French member centers of the French Surgical Association. The endpoints of the study were the early and the long-term postoperative outcomes and an evaluation of the risk factors for 90-day severe postoperative morbidity and a definitive stoma after an elective sigmoidectomy for SDD. RESULTS In total, 4617 patients were included. The median [IQR] age was 61 [18.0;100] years, the mean ± SD body mass index (BMI) was 26.8 ± 4 kg/m2, and 2310 (50%) were men. The indications for surgery were complicated diverticulitis in 50% and smoldering diverticulitis in 47.4%. The procedures were performed laparoscopically for 88% and with an anastomosis for 83.8%. The severe complication rate on postoperative day 90 was 11.7%, with a risk of anastomotic leakage of 4.7%. The independent risk factors in multivariate analysis were an American Society of Anesthesiologists (ASA) score ≥ 3, an open approach, and perioperative blood transfusion. Age, perioperative blood transfusion, and Hartmann's procedure were the three independent risk factors for a permanent stoma. CONCLUSIONS This series provides a real-life picture of elective sigmoidectomy for SDD at a national level. TRIAL REGISTRATION Comité National Information et Liberté (CNIL) (n°920361).
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Affiliation(s)
- C Sabbagh
- Department of Digestive Surgery Service, Amiens University Hospital, Rond Point du Pr Cabrol, 80054, Amiens Cedex 01, France.
| | - L Beyer-Berjot
- Department of Digestive Surgery Assistance Publique Hôpitaux de Marseille, North University Hospital, Marseille, France
| | - M Ouaissi
- Department of Digestive, Oncological, Endocrine, Hepatobiliary and Liver Transplant, Trousseau Hospital, University Hospital of Tours, Tours, France
| | - P Zerbib
- Department of Digestive Surgery and Transplantation, Huriez Hospital, Universite Lille Nord de France, Lille, France
| | - V Bridoux
- Department of Digestive Surgery, University Hospital of Rouen, Rouen, France
| | - G Manceau
- Department of Surgery, European Georges Pompidou Hospital, AP-HP, Paris, France
| | - M Karoui
- Department of Surgery, European Georges Pompidou Hospital, AP-HP, Paris, France
| | - Y Panis
- Colorectal Surgery Center, Groupe Hospitalier Privé Ambroise Paré-Hartmann, Neuilly, France
| | - E Buscail
- Department of Surgery, CHU Toulouse-Rangueil and Toulouse University, Toulouse, France
| | - A Venara
- Department of Digestive Surgery, University Hospital of Angers, Angers, France
| | - I Khaoudy
- Department of Digestive Surgery, Le Havre Hospital, Le Havre, France
| | - M Gaillard
- Department of Digestive Surgery, Cochin Hospital, Paris, France
| | - P Ortega-Deballon
- Department of General Surgery, University Hospital of Bocage, Dijon, France
| | - M Viennet
- Department of General Surgery, University Hospital of Bocage, Dijon, France
| | - A Thobie
- Department of Digestive Surgery, Avranches-Granville Hospital, Avranches, France
| | - B Menahem
- Department of Digestive Surgery, University Hospital of Caen, Caen, France
| | - C Eveno
- Department of Digestive Surgery, University Hospital of Lille, Lille, France
| | - C Bonnel
- Department of Digestive Surgery, Nord-Essonne Hospital, Longjumeau, France
| | - J-Y Mabrut
- Department of Digestive Surgery and Transplantation, Croix Rousse University Hospital, Lyon, France
| | - B Badic
- Department of General and Digestive Surgery, University Hospital, Brest, France
| | - C Godet
- Department of Digestive Surgery, Memorial Hospital of Saint-Lô, Saint-Lô, France
| | - Y Eid
- Department of Digestive Surgery, Robert Bisson Hospital, Lisieux, France
| | - E Duchalais
- Department of Oncological, Digestive and Endocrine Surgery, University Hospital of Nantes, Nantes, France
| | - Z Lakkis
- Department of Digestive Surgical Oncology and Liver Transplantation, University Hospital of Besançon, Besançon, France
| | - E Cotte
- Department of Digestive Surgery, Hôpital Lyon Sud, Lyon, France
| | - A Laforest
- Department of Digestive Surgery, Montsouris Institut, Paris, France
| | - V Defourneaux
- Department of Digestive Surgery, CHU Rennes, Rennes, France
| | - L Maggiorri
- Department of Digestive Surgery, Hôpital Saint-Louis, Université Paris VII, APHP, Paris, France
| | - L Rebibo
- Department of Digestive, Oesogastric and Bariatric Surgery, Hôpital Bichat-Claude-Bernard, Paris, France
| | - N Christou
- Department of Digestive Surgery, Limoges Hospital, Limoges, France
| | - A Talal
- Department of Digestive Surgery, Argentan Hospital, Argentan, France
| | - D Mege
- Department of Digestive Surgery, Aix Marseille Univ, APHM, Timone University Hospital, Marseille, France
| | - C Bonnamy
- Department of Digestive Surgery, Bayeux Hospital, Bayeux, France
| | - A Germain
- Department of Digestive Surgery, CHRU Nancy, Nancy, France
| | - F Mauvais
- Department of Digestive Surgery, Beauvais Hospital, Beauvais, France
| | - C Tresallet
- Department of Digestive Surgical Oncology, Avicenne University Hospital, Paris, France
| | - O Ahmed
- Department of Digestive Surgical Oncology, Avicenne University Hospital, Paris, France
| | - J-M Regimbeau
- Department of Digestive Surgery Service, Amiens University Hospital, Rond Point du Pr Cabrol, 80054, Amiens Cedex 01, France
| | - J Roudie
- Department of Digestive Surgery, Martinique Hospital, Fort-de-France, France
| | - A Laurent
- Department of Digestive Surgery, Créteil Hospital, Créteil, France
| | - B Trilling
- Department of Digestive and Emergency Surgery, Grenoble Alpes University Hospital, Grenoble, France
| | - M Bertrand
- Department of Digestive Surgery, Universitary Hospital of Nîmes, Nîmes, France
| | - D Massalou
- Department of Digestive Surgery, Hôpital L'Archet, Nice University, Nice, France
| | - B Romain
- Department of General and Digestive Surgery, Hautepierre Hospital, Strasbourg University Hospital, Strasbourg, France
| | - H Tranchart
- Department of Minimally Invasive Digestive Surgery, Antoine Beclere Hospital, AP-HP, Clamart, France
| | - U Giger
- ANTICIPE, Inserm Unity, UMR 1086, Caen, France
| | - O Dejardin
- ANTICIPE, Inserm Unity, UMR 1086, Caen, France
- Department of Clinical Research, University Hospital of Caen, Caen, France
| | - A Pellegrin
- Department of Digestive Surgery Service, Amiens University Hospital, Rond Point du Pr Cabrol, 80054, Amiens Cedex 01, France
| | - A Alves
- Department of Digestive Surgery, University Hospital of Caen, Caen, France
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Gaillard M, Meylaerts L, Govaerts K. Extrapelvic Endometriosis Mimicking Peritoneal Surface Malignancy: Case Report and a Review of Literature. Indian J Surg Oncol 2023; 14:131-143. [PMID: 37359914 PMCID: PMC10284773 DOI: 10.1007/s13193-022-01683-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 11/06/2022] [Indexed: 12/04/2022] Open
Abstract
Extrapelvic endometriosis is a rare presentation of endometriosis with atypical clinical symptoms. It can mimic peritoneal surface malignancy, as well as some abdominal infectious diseases. A 29-year-old Moroccan woman presented with abdominal pain, progressive abdominal distention, and an intermittent inflammatory syndrome. Imaging revealed multiple, progressively growing abdominal cysts. She had elevated tumor markers CA125 and CA19.9. Despite thorough investigation, several differential diagnoses persisted for a long time. Definitive pathological diagnosis could only be established after debulking surgery. Literature review on malignant and benign conditions causing multicystic abdominal distention is provided. When definitive diagnosis is not established, but suspicion for peritoneal malignancy remains, a debulking procedure can be undertaken. Organ preservation can be pursued whenever benign disease is still considered. In case of malignancy, short-term (curative) debulking procedure with or without hyperthermic intraperitoneal chemotherapy (HIPEC) can be proposed.
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Affiliation(s)
- Marie Gaillard
- Department of Surgical Oncology, Ziekenhuis Oost Limburg, Genk, Belgium
| | | | - Kim Govaerts
- Department of Radiology, Ziekenhuis Oost Limburg, Genk, Belgium
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Tranchart H, Gaillard M, Lazzati A, Le Fouler A, Bouriez D, Zouaghi Bellemin A, Kinn H, Roche C, Théreaux J, Gronnier C, Moszkowicz D. Peri-operative management of obese patients in digestive surgery: Clinical practice guidelines from the French Society of Digestive Surgery. J Visc Surg 2023; 160:214-218. [PMID: 37005111 DOI: 10.1016/j.jviscsurg.2023.03.005] [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] [Indexed: 04/03/2023]
Abstract
INTRODUCTION The French Society of Digestive Surgery (Société Française de Chirurgie Digestive [SFCD]) has elaborated clinical practice guidelines for the management of the obese patient undergoing gastro-intestinal surgery. METHODS The literature was analyzed according to the GRADE® (Grading of Recommendations Assessment, Development and Evaluation) methodology divided into five chapters: preoperative management, modalities of transportation and installation of the patient in the operating room, specific characteristics related to laparoscopic surgery, specific characteristics related to traditional surgery, and postoperative management. Each question was formulated according to the PICO format (Patients, Intervention, Comparison, Outcome). RESULTS Synthesis of expert opinions and the application of the GRADE methodology produced 30 recommendations among which three were strong and nine were weak. The GRADE methodology could not be applied for 18 questions, for which only expert opinion was obtained. CONCLUSION These clinical practice guidelines can help surgeons optimize the peri-operative management of the obese patient undergoing gastro-intestinal surgery.
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Affiliation(s)
- H Tranchart
- Department of Minimally Invasive Digestive Surgery, Antoine-Béclère Hospital, AP-HP, Paris-Saclay University, Clamart, France.
| | - M Gaillard
- Department of Digestive, Hepatobiliary and Endocrine Surgery, Cochin Hospital, AP-HP, Paris Cité University, Paris, France
| | - A Lazzati
- Department of General, Digestive and Obesity Surgery, Intercommunal Hospital Center, Créteil, France
| | - A Le Fouler
- Department of General, Digestive and Obesity Surgery, Intercommunal Hospital Center, Créteil, France
| | - D Bouriez
- Department of Digestive and Endocrine Surgery, University Hospital Center of Bordeaux, Bordeaux, France
| | - A Zouaghi Bellemin
- General and Digestive Surgery Department, Louis-Mourier Hospital, AP-HP, North-University Paris Cité, Paris, France
| | - H Kinn
- Visceral and Digestive Surgery Department, Regional University Hospital Center of Brest, Brest, France
| | - C Roche
- Visceral and Digestive Surgery Department, Regional University Hospital Center of Brest, Brest, France
| | - J Théreaux
- Visceral and Digestive Surgery Department, Regional University Hospital Center of Brest, Brest, France
| | - C Gronnier
- Department of Digestive and Endocrine Surgery, University Hospital Center of Bordeaux, Bordeaux, France
| | - D Moszkowicz
- General and Digestive Surgery Department, Louis-Mourier Hospital, AP-HP, North-University Paris Cité, Paris, France
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Gaillard M, Van Eyken P, Verswijvel G, Van der Speeten K. Appendiceal Goblet Cell Carcinoma: Role of Cytoreductive Surgery (CRS) and Hyperthermic Intraperitoneal Chemotherapy (HIPEC). Indian J Surg Oncol 2023; 14:240-249. [PMID: 37359931 PMCID: PMC10284751 DOI: 10.1007/s13193-023-01748-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 04/06/2023] [Indexed: 06/28/2023] Open
Abstract
Goblet cell carcinoma (GCC) encompasses a separate entity in appendiceal neoplasms with mixed glandular and neuro-endocrine pathological features. GCC mostly presents as an acute appendicitis duo to luminal obstruction or as an incidental finding on the surgical appendectomy specimen. In case of tumour perforation or presence of other risk factors, guidelines suggest additional treatment with a completing right hemicolectomy or cytoreductive surgery (CRS) with hyperthermic intraperitoneal chemotherapy (HIPEC). We report the case of a 77-year-old male with symptoms of appendicitis for which an appendectomy was performed. The appendix was ruptured during the procedure. There was an incidental finding of GCC on the pathological specimen. Because of possible tumour soiling, the patient received a prophylactic CRS-HIPEC. A literature review was performed to investigate the potential role for CRS-HIPEC as a curative treatment in patients with GCC. GCC of the appendix is an aggressive type of tumour with a high risk of peritoneal and systemic dissemination. CRS and HIPEC is a treatment option: both in a prophylactic setting and in patients with established peritoneal metastases.
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Affiliation(s)
- M. Gaillard
- Department of Surgical Oncology, Ziekenhuis Oost-Limburg, Schiepse Bos 6, 3600 Genk, Belgium
| | - P. Van Eyken
- Department of Pathology, Ziekenhuis Oost-Limburg, Schiepse Bos 6, 3600 Genk, Belgium
| | - G. Verswijvel
- Department of Radiology, Ziekenhuis Oost-Limburg, Schiepse Bos 6, 3600 Genk, Belgium
| | - K. Van der Speeten
- Department of Surgical Oncology, Ziekenhuis Oost-Limburg, Schiepse Bos 6, 3600 Genk, Belgium
- Department of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium
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Akamkam A, Fadel G, Legrand T, Furlan V, Dias CB, Van SD, Gaillard M, Vallee A, Andarelli J, Palermo V, Guihaire J. Coronary Angiography During Ex Situ Heart Perfusion: Feasibility and Toxicity in a Porcine Model. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.875] [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: 04/05/2023] Open
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Maverick MA, Gaillard M, Vasseur J, Debart F, Smietana M. Direct Access to Unique C‐5’‐Acyl Modified Nucleosides through Liebeskind–Srogl Cross‐Coupling Reaction. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mary Anne Maverick
- Institut des Biomolécules Max Mousseron Université de Montpellier CNRS ENSCM 1919, route de Mende 34293 Montpellier
| | - Marie Gaillard
- Institut des Biomolécules Max Mousseron Université de Montpellier CNRS ENSCM 1919, route de Mende 34293 Montpellier
| | - Jean‐Jacques Vasseur
- Institut des Biomolécules Max Mousseron Université de Montpellier CNRS ENSCM 1919, route de Mende 34293 Montpellier
| | - Françoise Debart
- Institut des Biomolécules Max Mousseron Université de Montpellier CNRS ENSCM 1919, route de Mende 34293 Montpellier
| | - Michael Smietana
- Institut des Biomolécules Max Mousseron Université de Montpellier CNRS ENSCM 1919, route de Mende 34293 Montpellier
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Brunet D, Van SD, Kloeckner M, Lopez A, Gaillard M, Decante B, Lacerda C, Deleuze P, Guihaire J. Myocardial Work Index Correlates with Cardiac Performance During Ex Vivo Heart Perfusion. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.045] [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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Nandillon R, Lebrun M, Miard F, Gaillard M, Sabatier S, Battaglia-Brunet F, Morabito D, Bourgerie S. Co-culture of Salix viminalis and Trifolium repens for the phytostabilisation of Pb and As in mine tailings amended with hardwood biochar. Environ Geochem Health 2022; 44:1229-1244. [PMID: 34993733 DOI: 10.1007/s10653-021-01153-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 11/04/2021] [Indexed: 06/14/2023]
Abstract
Metal(loid) soil pollution causes environmental and health issues, and thus those sites need to be remediated. This can be done through phytostabilization, in combination with biochar amendment. The objectives were to investigate the potential of Salix viminalis L. associated with Trifolium repens L. for the phytostabilization of biochar-amended contaminated soils by assessing (1) the tolerance of both plants to metal(loid)s, through the biomass production, (2) the concentrations of metal(loid)s in plant parts and (3) the concentrations of metal(loid)s in soil pore water and percolation waters. Results showed that plant growth affected soil pore water Physico-chemical properties and metal(loid) mobility. When comparing the mono- and poly-cultures, although pH was higher with the polyculture than the monoculture, the decrease in Pb mobility did not differ. Moreover, the leachate analysis showed that As concentration in the soil particles leached from the soil was higher in the polyculture condition, while Pb concentration was the highest in the willow vegetated condition. Finally, willow dry weight was not affected by the presence of clover, while clover dry weight was lower when it was grown with willow. In conclusion, the results showed that the willow and clover polyculture was not better than the monoculture of these two species for the phytomanagement of a former mine site amended with biochar.
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Affiliation(s)
- Romain Nandillon
- INRA USC1328, LBLGC EA 1207, University of Orleans, rue de Chartres, BP 6759, 45067, Orléans Cedex 2, France
- Environmental Consulting Engineering, IDDEA, 45160, Olivet, France
- ISTO, UMR 7327, BRGM, BP 36009, 45060, Orléans, France
| | - Manhattan Lebrun
- INRA USC1328, LBLGC EA 1207, University of Orleans, rue de Chartres, BP 6759, 45067, Orléans Cedex 2, France
| | - Florie Miard
- INRA USC1328, LBLGC EA 1207, University of Orleans, rue de Chartres, BP 6759, 45067, Orléans Cedex 2, France
| | - Marie Gaillard
- Environmental Consulting Engineering, IDDEA, 45160, Olivet, France
| | | | | | - Domenico Morabito
- INRA USC1328, LBLGC EA 1207, University of Orleans, rue de Chartres, BP 6759, 45067, Orléans Cedex 2, France
| | - Sylvain Bourgerie
- INRA USC1328, LBLGC EA 1207, University of Orleans, rue de Chartres, BP 6759, 45067, Orléans Cedex 2, France.
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Van SD, Brunet D, Lopez A, Gaillard M, Decante B, Deleuze P, Guihaire J. Relationship Between Lactate Trend and Cardiac Power Output During Ex Vivo Heart Perfusion. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.044] [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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Hervé C, Duguet AM, Georges C, Golse B, Cordier B, Galichon B, Zarzavadjian Le Bian A, Alasseur E, Stœklé HC, Gaillard M, Emmanuelli X, Emery S, Di C, Jault-Seseke F, Perez S, Bouffard C, Bommier C. Treating strangeness: Medicine and human dignity at the time of COVID-19. Ethics Med Public Health 2021; 18:100659. [PMID: 34493984 PMCID: PMC8412238 DOI: 10.1016/j.jemep.2021.100659] [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] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 03/17/2021] [Indexed: 11/17/2022]
Abstract
The concomitance of a migratory wave and the hospital crisis once again raises the question of the care that the French healthcare system is able to provide to migrants. On the occasion of SFFEM's 19th annual day, we present a synthesis of the research work that has been communicated at that time. Firstly, we will discuss how doctors have been able to overcome strangeness to revive the notion of hospitality according to Levinas; secondly, we will discuss how the hospital is departing from its mission of institutional hospitality because of administrative injunctions; thirdly, we will discuss how ethnomedicine gives us keys to open up to other cultural norms; fourthly, we will see the inadequacy that exists between rights of access to medical care and their effectiveness; finally, the conclusion of Xavier Emmanuelli, founder of the social ambulance service, will remind us how much the values of the French Republic call us to the notion of care and openness to otherness.
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Affiliation(s)
- C Hervé
- Société Française et Francophone d'Éthique Médicale, 45, rue des Saints-Pères, 75006 Paris, France
- Hôpital Foch, 40, rue Worth, 92150 Suresnes, France
| | - A-M Duguet
- Médecine légale, Université Paul Sabatier Toulouse III, Toulouse, France
| | - C Georges
- Assistance Publique-Hôpitaux de Paris, 1, avenue Claude Vellefaux, 75010 Paris, France
| | - B Golse
- Necker Enfants Malades, 149, rue de Sèvres, 75015 Paris, France
| | - B Cordier
- Hôpital Foch, 40, rue Worth, 92150 Suresnes, France
| | - B Galichon
- Service des Urgences, Hôpital Lariboisière, 2, rue Ambroise Paré, 75010 Paris, France
| | - A Zarzavadjian Le Bian
- Service de chirurgie digestive, Hôpital Avicenne, 125, rue de Stalingrad, 93000 Bobigny, France
| | - E Alasseur
- 3, place de Fontenoy, 75007 Paris, France
| | - H-C Stœklé
- Société Française et Francophone d'Éthique Médicale, 45, rue des Saints-Pères, 75006 Paris, France
- Hôpital Foch, 40, rue Worth, 92150 Suresnes, France
| | - M Gaillard
- Société Française et Francophone d'Éthique Médicale, 45, rue des Saints-Pères, 75006 Paris, France
| | - X Emmanuelli
- Fondateur du SAMU social, Ancien secrétaire d'Etat à l'action humanitaire d'urgence, 51 Rue Ledru Rollin, 94200 Ivry-sur-Seine, France
| | - S Emery
- Hôpital Corentin Celton, AP-HP, 4, Parvis Corentin Celton, 92130 Issy-les-Moulineaux, France
| | - C Di
- Hôpital Cochin, 27, rue du Faubourg-Saint-Jacques, 75014 Paris, France
| | | | - S Perez
- 20, avenue George Sand, 93210 Saint-Denis, France
| | - C Bouffard
- Université de Sherbrooke, 3001, 12 avenue Nord Sherbrooke, J1H 5N4 Québec, Canada
| | - C Bommier
- Société Française et Francophone d'Éthique Médicale, 45, rue des Saints-Pères, 75006 Paris, France
- Hôpital Saint Louis, Assistance publique-Hôpitaux de Paris, 1, avenue Claude Vellefaux, 75010 Paris, France
- Université de Paris, 12, rue de l'Ecole de Médecine, 75006 Paris, France
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Nandillon R, Lebrun M, Miard F, Gaillard M, Sabatier S, Morabito D, Bourgerie S. Contrasted tolerance of Agrostis capillaris metallicolous and non-metallicolous ecotypes in the context of a mining technosol amended by biochar, compost and iron sulfate. Environ Geochem Health 2021; 43:1457-1475. [PMID: 31673918 DOI: 10.1007/s10653-019-00447-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 10/09/2019] [Indexed: 06/10/2023]
Abstract
Metal(loid) contamination of soil, resulting from the mining activities, is a major issue worldwide, due to its negative effects on the environment and health. Therefore, these contaminated soils need to be remediated. One realistic method is the assisted phytostabilization, which aims at establishing a vegetation cover on the soil that will reduce metal(loid) bioavailability and spreading through the prevention of wind erosion and water leaching. In addition, amendments are applied to improve soil conditions and ameliorate plant growth. In this goal, biochar and compost showed good results in terms of amelioration of soil fertility and reduction in lead bioavailability. However, they usually have a negative effect on arsenic. On the contrary, iron sulfate showed capacity to reduce arsenic mobility through interaction with its iron hydroxides. Finally, the choice of the appropriate plant species is crucial for the success of assisted phytostabilization. One good option is to use endemic species, adapted to the metal(loid) stress, with a fast growth and large shoot and root systems. The aims of this study were to (1) evaluate the effects of applying biochar, compost and iron sulfate, alone or combined, to a former mine soil on the soil properties and Agrostis capillaris growth, and (2) assess the difference between two Agrostis capillaris ecotypes, an endemic metallicolous ecotype and a non-metallicolous ecotype. Results of the mesocosm experiment showed that amendment application improved soil properties, i.e., reduced soil acidity, increased nutrient availability and lower metal(loid) stress, the best being the combination biochar-compost-iron sulfate. These ameliorations allowed a better plant growth. Finally, the metallicolous ecotype performed better in terms of growth than the non-metallicolous one and could thus be used in an assisted phytostabilization process on the former mine site.
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Affiliation(s)
- Romain Nandillon
- INRA USC1328, LBLGC EA 1207, University of Orleans, Rue de Chartres, BP 6759, 45067, Orléans Cedex 2, France
- IDDEA, Environmental Consulting Engineering, 45160, Olivet, France
- ISTO, UMR 7327, BRGM, BP 36009, 45060, Orléans, France
| | - Manhattan Lebrun
- INRA USC1328, LBLGC EA 1207, University of Orleans, Rue de Chartres, BP 6759, 45067, Orléans Cedex 2, France
- Dipartimento di Bioscienze e Territorio, University of Molise, 86090, Pesche, Italy
| | - Florie Miard
- INRA USC1328, LBLGC EA 1207, University of Orleans, Rue de Chartres, BP 6759, 45067, Orléans Cedex 2, France
| | - Marie Gaillard
- IDDEA, Environmental Consulting Engineering, 45160, Olivet, France
| | | | - Domenico Morabito
- INRA USC1328, LBLGC EA 1207, University of Orleans, Rue de Chartres, BP 6759, 45067, Orléans Cedex 2, France
| | - Sylvain Bourgerie
- INRA USC1328, LBLGC EA 1207, University of Orleans, Rue de Chartres, BP 6759, 45067, Orléans Cedex 2, France.
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Gaillard M, Thuaire A, Nonglaton G, Agache V, Roupioz Y, Raillon C. Biosensing extracellular vesicles: contribution of biomolecules in affinity-based methods for detection and isolation. Analyst 2020; 145:1997-2013. [PMID: 31960838 DOI: 10.1039/c9an01949a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Extracellular Vesicles (EVs) are lipid vesicles secreted by cells that allow intercellular communication. They are decorated with surface proteins, which are membrane proteins that can be targeted by biochemical techniques to isolate EVs from background particles. EVs have recently attracted attention for their potential applications as biomarkers for numerous diseases. This review focuses on the contribution of biomolecules used as ligands in affinity-based biosensors for the detection and isolation of EVs. Capturing biological objects like EVs with antibodies is well described in the literature through different biosensing techniques. However, since handling proteins can be challenging due to stability issues, sensors using non-denaturable biomolecules are emerging. DNA aptamers, short DNA fragments that mimic antibody action, are currently being developed and considered as the future of antibody-like ligands. These molecules offer undeniable advantages: unparalleled ease of production, very high stability in air, similar affinity constants to antibodies, and compatibility with many organic solvents. The use of peptides specific to EVs is also an exciting biochemical solution to target EV membrane proteins and complement other probes. These different ligands have been used in several types of biosensors: electrochemical, optical, microfluidic using both generic probes (targeting widely expressed membrane proteins such as the tetraspanins) and specific probes (targeting disease biomarkers such as proteins overexpressed in cancer).
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Affiliation(s)
- M Gaillard
- Univ. Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, 38000 Grenoble, France.
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Nandillon R, Lahwegue O, Miard F, Lebrun M, Gaillard M, Sabatier S, Battaglia-Brunet F, Morabito D, Bourgerie S. Potential use of biochar, compost and iron grit associated with Trifolium repens to stabilize Pb and As on a multi-contaminated technosol. Ecotoxicol Environ Saf 2019; 182:109432. [PMID: 31306919 DOI: 10.1016/j.ecoenv.2019.109432] [Citation(s) in RCA: 3] [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] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 06/25/2019] [Accepted: 07/07/2019] [Indexed: 06/10/2023]
Abstract
Vegetation cover can be used in the phytomanagement of polluted areas by adding value to abandoned sites and reducing the dispersion of pollutants by erosion. Appropriate amendments, that allow both efficient plant growth and the immobilization of contaminants in the soil must be chosen in order to optimize the efficiency of this process. We used a mining technosol mainly contaminated by arsenic (1068 mg kg-1) and lead (23387 mg kg-1) to study the effect of three amendments (biochar, compost and iron grit) on (i) physico-chemical properties of the soil and soil pore water, (ii) metal(loid) mobility, bioavailability and bioaccessibility (CaCl2 and Simple Bioaccessibility Extraction Test (SBET)), and (iii) the capability of Trifolium repens to germinate and grow. All the amendments used increased the pH and electrical conductivity of the SPW, resulting in a 90% decrease in the concentration of lead in the soil pore water (SPW). We also demonstrated a decrease in Pb phytoavailability. The amendments allowed the establishment of a plant cover, although the addition of iron grit alone did not allow any clover germination. For the Pontgibaud technosol, the combination of the three amendments resulted in a significant decrease in As and Pb concentrations in clover tissues, mainly in the aerial organs. The amendments also made it possible for some of them to halve the phytoavailable fraction of arsenic. However, for compost, both the As concentrations in the SPW, and the bioavailable fraction of As increased. All the amendments used had contrasting effects on the bioaccessible fractions of metal(loid)s. The most efficient amendment combination was the addition of 5% biochar and 5% compost.
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Affiliation(s)
- R Nandillon
- University of Orléans, INRA USC1328, LBLGC EA1207, Orléans, France; IDDEA, Environmental Consulting Engineering, Olivet, France; BRGM, ISTO, UMR7327, Orléans, France
| | - O Lahwegue
- University of Orléans, INRA USC1328, LBLGC EA1207, Orléans, France
| | - F Miard
- University of Orléans, INRA USC1328, LBLGC EA1207, Orléans, France
| | - M Lebrun
- University of Orléans, INRA USC1328, LBLGC EA1207, Orléans, France; University of Molise, Dipartimento di Bioscienze e Territorio, 86090, Pesche, Italy
| | - M Gaillard
- IDDEA, Environmental Consulting Engineering, Olivet, France
| | - S Sabatier
- IDDEA, Environmental Consulting Engineering, Olivet, France
| | | | - D Morabito
- University of Orléans, INRA USC1328, LBLGC EA1207, Orléans, France.
| | - S Bourgerie
- University of Orléans, INRA USC1328, LBLGC EA1207, Orléans, France
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Nandillon R, Lebrun M, Miard F, Gaillard M, Sabatier S, Villar M, Bourgerie S, Morabito D. Capability of amendments (biochar, compost and garden soil) added to a mining technosol contaminated by Pb and As to allow poplar seed (Populus nigra L.) germination. Environ Monit Assess 2019; 191:465. [PMID: 31243568 DOI: 10.1007/s10661-019-7561-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Accepted: 05/23/2019] [Indexed: 06/09/2023]
Abstract
The germination capacity of poplar seeds has never been studied in the context of metal(loid)-contaminated soils, even though poplars are present over a vast geographical area. In this study, black poplar seeds from the Loire Valley (France) were grown for 28 days in mesocosm on a heavily polluted soil that was subjected to different amendments. This phytomanagement process aimed to allow the revegetation of an As and Pb-contaminated mining soil by adding appropriate amendments, resulting in metal(loid) soil stabilisation and efficient plant growth. The objectives were to evaluate the effect of three amendments (garden soil, compost and biochar) when added alone or combined to a technosol on (i) the soil physicochemical properties, (ii) the mobility of As and Pb in the soil pore water (SPW), (iii) the capacity of poplar seeds to germinate and to grow and (iv) the metal(loid) distribution within the plant organs. The addition of amendments alone or combined allowed a 90% decrease in SPW Pb concentrations, while the arsenic concentrations were between 18 and 416 times higher. However, we were only able to obtain seed germination and plant growth on amended soils. These promising results will allow us to explore the use of such amendments in rehabilitating areas that are sources of significant metal(loid) dissemination, as well as allowing a natural plant recolonisation of these sites by seeds from the surrounding environment.
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Affiliation(s)
- R Nandillon
- INRA USC1328, LBLGC EA1207, University of Orléans, Orléans, France
- IDDEA, 289 Boulevard Duhamel du Monceau, 45160, Olivet, France
- BRGM, ISTO, UMR 7327, BP 36009, 45060, Orléans, France
| | - M Lebrun
- INRA USC1328, LBLGC EA1207, University of Orléans, Orléans, France
- Dipartimento di Bioscienze e Territorio, University of Molise, 86090, Pesche, Italy
| | - F Miard
- INRA USC1328, LBLGC EA1207, University of Orléans, Orléans, France
| | - M Gaillard
- IDDEA, 289 Boulevard Duhamel du Monceau, 45160, Olivet, France
| | - S Sabatier
- IDDEA, 289 Boulevard Duhamel du Monceau, 45160, Olivet, France
| | - M Villar
- UMR 0588 BIOFORA, INRA ONF, 45075, Orléans Cedex 2, France
| | - S Bourgerie
- INRA USC1328, LBLGC EA1207, University of Orléans, Orléans, France
| | - D Morabito
- INRA USC1328, LBLGC EA1207, University of Orléans, Orléans, France.
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Gaillard M, Dagher I, Tranchart H. Chronic hypokalemia due to gastric exclusion after bariatric surgery. J Visc Surg 2018; 156:363-365. [PMID: 30553575 DOI: 10.1016/j.jviscsurg.2018.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Hypokalemia is a common complication of repeated vomiting or prolonged gastric suction. In the case we observed, a patient presented with chronic hypokalemia due to gastric dilatation and the development of a superior mesenteric artery syndrome several years after gastric banding. This paper presents pre-operative and post-operative illustrations of a rare but potentially serious entity.
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Affiliation(s)
- M Gaillard
- Department of Minimally Invasive Digestive Surgery, Antoine Béclère Hospital, 157, rue de la Porte-de-Trivaux, 92141 Clamart, France
| | - I Dagher
- Department of Minimally Invasive Digestive Surgery, Antoine Béclère Hospital, 157, rue de la Porte-de-Trivaux, 92141 Clamart, France
| | - H Tranchart
- Department of Minimally Invasive Digestive Surgery, Antoine Béclère Hospital, 157, rue de la Porte-de-Trivaux, 92141 Clamart, France.
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Gaillard M, Flecher E, Ramadan R, Azmoun A, Lepers Y, Chabanne C, Nottin R, Anselmi A, Deleuze P, Guihaire J. Incidence and Management of Device-related Infections With the Jarvik 2000 Axial Flow Pump. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.932] [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: 10/17/2022] Open
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Van Ganse E, Aubert H, Gaillard M, Hamami N, Laforest L, Belhassen M, Devouassoux G. Éducation thérapeutique des asthmatiques à l’hôpital de la Croix Rousse (Lyon) : résultats observés sur les 30 premiers patients. Rev Mal Respir 2018. [DOI: 10.1016/j.rmr.2017.10.183] [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: 11/24/2022]
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Abstract
INTRODUCTION In order to improve the outcome of classical laparoscopic cholecystectomy (CLC), surgeons have attempted to minimize tissue trauma. The aim of this study is to describe the technique of mini-laparoscopic cholecystectomy (MLC) and to report the outcome of this approach when used as a routine procedure. METHODS Since January 2012, all consecutive patients undergoing MLC were included in this study. Operative and perioperative data were prospectively collected. Additionally, cost analysis was performed. RESULTS From 2012 to 2015, 200 MLC were performed (F/M: 132/68, mean age 45±16 years). Mean operative duration was 97±32min for the first 50 patients and 75±25min for the subsequent 150 patients (P<0.0001). Modifications in the number or size of trocars were necessary in nine of the first 50 procedures and in seven of the subsequent 150 procedures (P=0.003). Perioperative morbidity included gallbladder perforation (n=28) or moderate (<50mL) bleeding (n=6). Postoperative morbidity was 4%. The mean global cost for a MLC procedure was 1757±1855 euros. This cost decreased from 2946±3115 euros in the first 50 patients to 1390±1278 euros in the subsequent 150 patients (P=0.001). CONCLUSION Mini-laparoscopy can be used for routine elective cholecystectomy. This approach is associated with low morbidity and good cosmetic results.
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Affiliation(s)
- C Dammaro
- AP-HP, Antoine-Béclère Hospital, Department of Minimally Invasive Surgery, 92140 Clamart, France; Paris-Saclay University, 91405 Orsay, France
| | - H Tranchart
- AP-HP, Antoine-Béclère Hospital, Department of Minimally Invasive Surgery, 92140 Clamart, France; Paris-Saclay University, 91405 Orsay, France.
| | - M Gaillard
- AP-HP, Antoine-Béclère Hospital, Department of Minimally Invasive Surgery, 92140 Clamart, France; Paris-Saclay University, 91405 Orsay, France
| | - A Debelmas
- AP-HP, Antoine-Béclère Hospital, Department of Minimally Invasive Surgery, 92140 Clamart, France; Paris-Saclay University, 91405 Orsay, France
| | - S Ferretti
- AP-HP, Antoine-Béclère Hospital, Department of Minimally Invasive Surgery, 92140 Clamart, France; Paris-Saclay University, 91405 Orsay, France
| | - P Lainas
- AP-HP, Antoine-Béclère Hospital, Department of Minimally Invasive Surgery, 92140 Clamart, France; Paris-Saclay University, 91405 Orsay, France
| | - I Dagher
- AP-HP, Antoine-Béclère Hospital, Department of Minimally Invasive Surgery, 92140 Clamart, France; Paris-Saclay University, 91405 Orsay, France
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Tranchart H, Koffi GM, Gaillard M, Lainas P, Poüs C, Gonin P, Nguyen TH, Dubart-Kupperschmitt A, Dagher I. Liver regeneration following repeated reversible portal vein embolization in an experimental model. Br J Surg 2016; 103:1209-19. [PMID: 27256140 DOI: 10.1002/bjs.10153] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 01/26/2016] [Accepted: 02/10/2016] [Indexed: 12/15/2022]
Abstract
BACKGROUND Portal vein embolization (PVE) is used routinely to prevent postoperative liver failure as a result of anticipated insufficient future liver remnant volume following resection. The authors have recently developed a technique for temporary PVE. The aim of this study was to assess the effect of repeated reversible PVE on hepatocyte proliferation and subsequent liver hypertrophy in rodents. METHODS Four treatments were compared (n = 21 rats per group): single reversible PVE, two PVEs separated by 14 days, partial portal vein ligation or sham procedure. The feasibility and tolerance of the procedure were assessed. Volumetric imaging by CT was used to estimate the evolution of liver volumes. After death, the weight of liver lobes was measured and hepatocyte proliferation evaluated by immunostaining. RESULTS Embolization of portal branches corresponding to 70 per cent of total portal flow was performed successfully in all animals. Repeated PVE induced additional hepatocyte proliferation. Repeated embolization resulted in superior hepatocyte proliferation in the non-occluded segments compared with portal vein ligation (31·1 versus 22·2 per cent; P = 0·003). The non-occluded to total liver volume ratio was higher in the repeated PVE group than in the single PVE and sham groups (P = 0·050 and P = 0·001 respectively). CONCLUSION Repeated reversible PVE successfully induced additional hepatocyte proliferation and subsequent liver hypertrophy. Surgical relevance Portal vein embolization (PVE) is used routinely to prevent postoperative liver failure as a result of anticipated insufficient future liver remnant volume following resection. In the present study, a technique of repeated temporary PVE was developed in a rat model; this induced additional hepatocyte proliferation and an increase in liver volume compared with single embolization. This novel approach might help induce major hypertrophy of the future remnant liver, which could increase the rate of patients amenable to major liver resections.
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Affiliation(s)
- H Tranchart
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1193, Villejuif, France.,Departement Hospitalo-Universitaire Hepatinov, Paul Brousse Hospital, Villejuif, France.,Unité Mixte de Recherche, Paris-Sud University, Villejuif, France.,Departments of Minimally Invasive Surgery, Antoine-Beclere Hospital, Assistance Publique - Hôpitaux de Paris, Paris-Sud University, Clamart, France
| | - G M Koffi
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1193, Villejuif, France.,Departement Hospitalo-Universitaire Hepatinov, Paul Brousse Hospital, Villejuif, France.,Unité Mixte de Recherche, Paris-Sud University, Villejuif, France
| | - M Gaillard
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1193, Villejuif, France.,Departement Hospitalo-Universitaire Hepatinov, Paul Brousse Hospital, Villejuif, France.,Unité Mixte de Recherche, Paris-Sud University, Villejuif, France.,Departments of Minimally Invasive Surgery, Antoine-Beclere Hospital, Assistance Publique - Hôpitaux de Paris, Paris-Sud University, Clamart, France
| | - P Lainas
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1193, Villejuif, France.,Departement Hospitalo-Universitaire Hepatinov, Paul Brousse Hospital, Villejuif, France.,Unité Mixte de Recherche, Paris-Sud University, Villejuif, France.,Departments of Minimally Invasive Surgery, Antoine-Beclere Hospital, Assistance Publique - Hôpitaux de Paris, Paris-Sud University, Clamart, France
| | - C Poüs
- Departments of Biochemistry, Antoine-Beclere Hospital, Assistance Publique - Hôpitaux de Paris, Paris-Sud University, Clamart, France
| | - P Gonin
- Service Commun d'Expérimentation Animale, Gustave Roussy Institut, Villejuif, France
| | - T H Nguyen
- INSERM U1064, Hôtel Dieu Hospital, Nantes, France
| | - A Dubart-Kupperschmitt
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1193, Villejuif, France.,Departement Hospitalo-Universitaire Hepatinov, Paul Brousse Hospital, Villejuif, France.,Unité Mixte de Recherche, Paris-Sud University, Villejuif, France
| | - I Dagher
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1193, Villejuif, France.,Departement Hospitalo-Universitaire Hepatinov, Paul Brousse Hospital, Villejuif, France.,Unité Mixte de Recherche, Paris-Sud University, Villejuif, France.,Departments of Minimally Invasive Surgery, Antoine-Beclere Hospital, Assistance Publique - Hôpitaux de Paris, Paris-Sud University, Clamart, France
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Tranchart H, Aurégan J, Gaillard M, Giocanti-Aurégan A. Évaluation des compétences techniques des internes de chirurgie ophtalmologique, orthopédique et digestive français : état actuel et perspectives. J Fr Ophtalmol 2015; 38:679-88. [DOI: 10.1016/j.jfo.2015.03.008] [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] [Received: 11/12/2014] [Revised: 03/20/2015] [Accepted: 03/26/2015] [Indexed: 10/23/2022]
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Charhon S, el Yafi S, Gaillard M, Beruard M, Janin G, Accominotti M, Traeger J, Meunier PJ. Deferoxamine for the diagnosis and treatment of aluminum-associated osteodystrophy. Contrib Nephrol 2015; 64:160-9. [PMID: 3180823 DOI: 10.1159/000415740] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Makowski MS, Kim S, Gaillard M, Janes D, Manfra MJ, Bryan I, Sitar Z, Arellano C, Xie J, Collazo R, Ivanisevic A. Physisorption of functionalized gold nanoparticles on AlGaN/GaN high electron mobility transistors for sensing applications. Appl Phys Lett 2013; 102:74102. [PMID: 23509411 PMCID: PMC3592857 DOI: 10.1063/1.4791788] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Accepted: 01/29/2013] [Indexed: 06/01/2023]
Abstract
AlGaN/GaN high electron mobility transistors (HEMTs) were used to measure electrical characteristics of physisorbed gold nanoparticles (Au NPs) functionalized with alkanethiols with a terminal methyl, amine, or carboxyl functional group. Additional alkanethiol was physisorbed onto the NP treated devices to distinguish between the effects of the Au NPs and alkanethiols on HEMT operation. Scanning Kelvin probe microscopy and electrical measurements were used to characterize the treatment effects. The HEMTs were operated near threshold voltage due to the greatest sensitivity in this region. The Au NP/HEMT system electrically detected functional group differences on adsorbed NPs which is pertinent to biosensor applications.
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Affiliation(s)
- M S Makowski
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, USA ; Indiana University School of Medicine, Indianapolis, Indiana 46202, USA
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Gaillard M, Desmette D, Keller J. Regulatory focus moderates the influence of age-related stereotypic expectancies on older adults’ test performance and threat-based concerns. European Review of Applied Psychology 2011. [DOI: 10.1016/j.erap.2010.11.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Beck Popovic M, Abouzeid H, Gaillard M, Faouzi M, Pica A, Balmer A, Munier F. Criteria defining the duration of chemoreduction with focal treatment in retinoblastoma: A retrospective analysis. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.9581] [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: 11/20/2022] Open
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Walters RG, Jacquemont S, Valsesia A, de Smith AJ, Martinet D, Andersson J, Falchi M, Chen F, Andrieux J, Lobbens S, Delobel B, Stutzmann F, El-Sayed Moustafa JS, Chèvre JC, Lecoeur C, Vatin V, Bouquillon S, Buxton JL, Boute O, Holder-Espinasse M, Cuisset JM, Lemaitre MP, Ambresin AE, Brioschi A, Gaillard M, Giusti V, Fellmann F, Ferrarini A, Hadjikhani N, Campion D, Guilmatre A, Goldenberg A, Calmels N, Mandel JL, Le Caignec C, David A, Isidor B, Cordier MP, Dupuis-Girod S, Labalme A, Sanlaville D, Béri-Dexheimer M, Jonveaux P, Leheup B, Ounap K, Bochukova EG, Henning E, Keogh J, Ellis RJ, Macdermot KD, van Haelst MM, Vincent-Delorme C, Plessis G, Touraine R, Philippe A, Malan V, Mathieu-Dramard M, Chiesa J, Blaumeiser B, Kooy RF, Caiazzo R, Pigeyre M, Balkau B, Sladek R, Bergmann S, Mooser V, Waterworth D, Reymond A, Vollenweider P, Waeber G, Kurg A, Palta P, Esko T, Metspalu A, Nelis M, Elliott P, Hartikainen AL, McCarthy MI, Peltonen L, Carlsson L, Jacobson P, Sjöström L, Huang N, Hurles ME, O'Rahilly S, Farooqi IS, Männik K, Jarvelin MR, Pattou F, Meyre D, Walley AJ, Coin LJM, Blakemore AIF, Froguel P, Beckmann JS. A new highly penetrant form of obesity due to deletions on chromosome 16p11.2. Nature 2010; 463:671-5. [PMID: 20130649 PMCID: PMC2880448 DOI: 10.1038/nature08727] [Citation(s) in RCA: 345] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2009] [Accepted: 12/01/2009] [Indexed: 01/04/2023]
Affiliation(s)
- R G Walters
- Section of Genomic Medicine, Imperial College London, London W12 0NN, UK
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Abstract
SUMMARY
Aging is commonly attributed to age-related changes in oxidative damage due to an increased production of reactive oxygen species (ROS) and a weakened efficacy of enzymatic antioxidants. These age-related changes might therefore modify the use of dietary antioxidants, including carotenoids. As carotenoids are closely associated with the expression of secondary sexual signals, the allocation of carotenoids to sexual signal versus antioxidant defences may vary with age. In this study, we explored how carotenoid-based ornament and antioxidant activity varied with age and how an inflammatory-induced oxidative burst affected ornament and antioxidant activity across a range of ages. Using zebra finches (Taeniopygia guttata) as a model species, we assessed circulating carotenoids, beak coloration and the plasma antioxidant status of birds of different ages before and after an inflammatory challenge. Our results show that old individuals display similar carotenoid-based sexual signals regardless of the availability of circulating carotenoids, suggesting a terminal investment of old individuals in their last reproductive event. Additionally, we found that an inflammatory insult induced a decrease in the total antioxidant activity and in the expression of a carotenoid-based sexual signal in the oldest individuals. These results suggest that old individuals pay an extra cost of immune activation possibly because the efficiency of antioxidant machinery varies with age.
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Affiliation(s)
- J. Cote
- Biogéosciences UMR 5561, Université de Bourgogne, Dijon, France
- Department of Environmental Science and Policy, University of California, Davis, USA
| | - E. Arnoux
- Biogéosciences UMR 5561, Université de Bourgogne, Dijon, France
| | - G. Sorci
- Biogéosciences UMR 5561, Université de Bourgogne, Dijon, France
| | - M. Gaillard
- Biogéosciences UMR 5561, Université de Bourgogne, Dijon, France
| | - B. Faivre
- Biogéosciences UMR 5561, Université de Bourgogne, Dijon, France
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Stancu I, Alnawaqil AM, Marquis S, Miserez M, Gaillard M, Giannakopoulos P. [The mobile Team of the old age psychiatry: principles and perspectives]. Rev Med Suisse 2008; 4:957-963. [PMID: 18549083] [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] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
idemiological studies reveal that aging has significant consequences in community mental health. The mobile Team of the old age psychiatry (EMPAA) in Lausanne has the mission to respond to the increasing demands of psychiatric care, in a flexible, rapid and economic way, combining a high level of conceptual specificity with the logic of proximity. This article describes the development of this mobile team and reports data on the demographic pattern of patients and degree of satisfaction in the caregiver network. The question that arises in this context is that of the extension of this model in the other geographical areas of the district (Vaud country).
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Affiliation(s)
- I Stancu
- Service universitaire de psychiatrie de l'âge avancé (SUPAA)
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29
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Baeta R, Faivre B, Motreuil S, Gaillard M, Moreau J. Carotenoid trade-off between parasitic resistance and sexual display: an experimental study in the blackbird (Turdus merula). Proc Biol Sci 2008; 275:427-34. [PMID: 18055388 PMCID: PMC2596825 DOI: 10.1098/rspb.2007.1383] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Many parasites depress the expression of the carotenoid-based colour displays of their hosts, and it has been hypothesized that animals face a trade-off in carotenoid allocation between immune functions and 'degree of ornamentation'. While numerous correlative studies suggest that parasite infection decreases the intensity of carotenoid-based colour displays, the existence of this trade-off has never been demonstrated experimentally in a host-parasite model. In this study, we used the blackbird (Turdus merula) and Isospora (an intestinal parasite) to assess whether this trade-off does indeed exist. Blackbirds were supplemented with carotenoids while simultaneously being exposed to parasites. Supplemented males circulated more carotenoids in the blood and developed more brightly coloured bills than unsupplemented males. In addition, supplementation slowed down the replication rate of parasites. Supplementation with carotenoids enabled infected birds to maintain their bill coloration, whereas birds that were infected but not supplemented showed reduced bill coloration. At the same time, infection slowed carotenoid assimilation in the blood. Overall, we demonstrated that bill colour reflects a bird's health, and that only males with a carotenoid-rich diet are capable of coping with costs associated with parasitic infection. Carotenoids are thus traded off between host physiological response to parasites and secondary sexual traits. Further investigations are required to determine the physiological mechanisms that govern this trade-off.
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Affiliation(s)
- R Baeta
- Equipe Ecologie-Evolutive, UMR CNRS 5561 Biogéosciences, Université de Bourgogne, 6 Boulevard Gabriel, 21000 Dijon, France
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30
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Geslin C, Gaillard M, Flament D, Rouault K, Le Romancer M, Prieur D, Erauso G. Analysis of the first genome of a hyperthermophilic marine virus-like particle, PAV1, isolated from Pyrococcus abyssi. J Bacteriol 2007; 189:4510-9. [PMID: 17449623 PMCID: PMC1913373 DOI: 10.1128/jb.01896-06] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Only one virus-like particle (VLP) has been reported from hyperthermophilic Euryarchaeotes. This VLP, named PAV1, is shaped like a lemon and was isolated from a strain of "Pyrococcus abyssi," a deep-sea isolate. Its genome consists of a double-stranded circular DNA of 18 kb which is also present at a high copy number (60 per chromosome) free within the host cytoplasm but is not integrated into the host chromosome. Here, we report the results of complete analysis of the PAV1 genome. All the 25 predicted genes, except 3, are located on one DNA strand. A transcription map has been made by using a reverse transcription-PCR assay. All the identified open reading frames (ORFs) are transcribed. The most significant similarities relate to four ORFs. ORF 180a shows 31% identity with ORF 181 of the pRT1 plasmid isolated from Pyrococcus sp. strain JT1. ORFs 676 and 678 present similarities with a concanavalin A-like lectin/glucanase domain, which could be involved in the process of host-virus recognition, and ORF 59 presents similarities with the transcriptional regulator CopG. The genome of PAV1 displays unique features at the nucleic and proteinic level, indicating that PAV1 should be attached at least to a novel genus or virus family.
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Affiliation(s)
- C Geslin
- Laboratoire de Microbiologie des Environnements Extrêmes, UMR 6197 (CNRS, UBO, IFREMER), Place Nicolas Copernic, Technopôle Brest-Iroise, 29280 Plouzané, France.
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31
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Mermet I, Guerrini JS, Cairey-Remonnay S, Drobacheff C, Faivre B, Gaillard M, Kantelip B, Pretet JL, Riethmuller D, Aubin F. Cervical intraepithelial neoplasia associated with epidermodysplasia verruciformis HPV in an HIV-infected patient: a manifestation of immune restoration syndrome. Eur J Dermatol 2007; 17:149-52. [PMID: 17337400 DOI: 10.1684/ejd.2007.0129] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/13/2006] [Indexed: 11/17/2022]
Abstract
We report a case of a cervical intraepithelial neoplasia associated with epidermodysplasia verruciformis human papillomavirus (HPV) type 5 and HPV type 16 in a human immunodeficiency virus-infected patient. Furthermore, epidermodysplasia verruciformis-like cutaneous eruptions after initiation of highly active antiretroviral therapy has never been described as a manifestation of an immune restoration syndrome.
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Affiliation(s)
- Isabelle Mermet
- Department of Dermatology, Medical School and University Hospital, IFR 133, 25000 Besançon, France
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32
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Gaillard M, Giannakopoulos P. [A crisis team in the field of old age psychiatry]. Rev Med Suisse 2006; 2:2088-91. [PMID: 17073174] [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] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
In the context of demographic evolution, psychiatric care needs increase steadily in most western countries. Given the financial limitations, it is mandatory to establish appropriate care priorities in order to avoid psychiatric hospitalisations by assisting care providers, general practionners and nurses, at home or in the nursing homes. A crisis team has been established 18 months ago within the Division of old age psychiatry in Lausanne. The care program included immediate assistance in the community, assessement, crisis counseling, medication consultation and referral for psychiatric services providing an alternative to hospitalization. The first results indicate that this intervention is well accepted by the users and correspond to a real need.
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Affiliation(s)
- M Gaillard
- Service universitaire de psychiatrie de l'âge avancé, Departement de psychiatrie, CHUV, Site de Cery, Prilly.
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33
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Prieur D, Erauso G, Geslin C, Lucas S, Gaillard M, Bidault A, Mattenet AC, Rouault K, Flament D, Forterre P, Le Romancer M. Genetic elements of Thermococcales. Biochem Soc Trans 2004; 32:184-7. [PMID: 15046568 DOI: 10.1042/bst0320184] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This minireview summarizes our current knowledge about archaeal genetic elements in the hyperthermophilic order Thermococcales in the phylum Euryarchaeota. This includes recent work on the first virus of Pyrococcus, PAV1, the discovery of novel unique virus morphotypes in hot deep-sea environments, and preliminary observations on novel cryptic plasmids. We also review the work accomplished over the last 5 years in the development of genetic tools for members of the Pyrococcus and Thermococcus genera, mainly in our laboratories.
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Affiliation(s)
- D Prieur
- Université de Bretagne Occidentale, UMR 6539, IUEM, Technopôle Brest-Iroise, 29270 Plouzané, France.
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34
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Ammann P, Bourrin S, Brunner F, Meyer JM, Clément-Lacroix P, Baron R, Gaillard M, Rizzoli R. A new selective estrogen receptor modulator HMR-3339 fully corrects bone alterations induced by ovariectomy in adult rats. Bone 2004; 35:153-61. [PMID: 15207751 DOI: 10.1016/j.bone.2004.03.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2003] [Revised: 03/12/2004] [Accepted: 03/30/2004] [Indexed: 11/19/2022]
Abstract
The selective estrogen receptor modulator (SERM) raloxifene has been shown to reduce the risk of vertebral fracture, but without significant effect on nonvertebral fractures. However, there is a need for SERMs capable of improving mechanical competence and reducing the risk of fractures at multiple skeletal sites, with minimal side effects. We investigated the effects of a new steroidal SERM, HMR-3339, compared to raloxifene, on bone strength and its determinants (BMD, microarchitecture, dimensions) at various skeletal sites (lumbar spine, tibia, and femur) of adult ovariectomized rats in both prevention and intervention protocols. In a prevention study, HMR-3339 and raloxifene treatments fully prevented alterations of bone strength. In an intervention protocol, where treatment was started 8 weeks after ovariectomy, HMR-3339 fully restored mechanical properties by influencing both areal BMD and outer diameter. This effect was observed at skeletal sites formed of cancellous and cortical bone or of cortical bone only. In contrast, raloxifene positively influenced structures containing mainly cancellous bone. In HMR-3339-treated rats, IGF-I plasma levels were higher than in ovariectomized controls; this was not observed with raloxifene. In conclusion, these results indicate that HMR-3339 increased not only bone mineral mass, but also restored bone mechanical strength at multiple sites in adult osteoporotic rats. In contrast to raloxifene, HMR-3339 also influenced skeletal sites predominantly formed of cortical bone.
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Affiliation(s)
- P Ammann
- Department of Rehabilitation and Geriatrics, Service of Bone Diseases (WHO Collaborating Center for Osteoporosis Prevention), University Hospital, CH-1211 Geneva 14, Switzerland.
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35
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Gaillard M, Montouillout V, Maugé F, Fernandez C. An infrared and Solid-State NMR study of the H2S adsorption on basic zeolite. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/s0167-2991(04)80694-3] [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: 02/17/2023]
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36
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Martin A, Gaillard M, Miot S, Riethmuller D, Schaal JP. [Lactate measurements and acid-base balance in cord blood]. J Gynecol Obstet Biol Reprod (Paris) 2003; 32:713-9. [PMID: 15067895] [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] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE To compare two techniques of lactate measurements in cord blood: either by electrochemical strip method with Lactate Pro of KDK in the umbilical artery alone (series 1) or by enzymatic method with Rapid lab Analyzer of Bayer in the two vessels (series 2) with acid base balance being also determined. SUBJECTS AND METHODS Series 1 included 353 neonates with a mean gestational age of 37 (+/- 3.6) weeks and series 2 included 410 newborns with a mean gestational age of 38 (+/- 3.1) weeks. RESULTS Data was presented as mean and SD. In the first series mean umbilical artery lactate concentration was 3.71 (+/- 1.81) mmol/l. In the second series mean umbilical artery blood gas and lactate levels were as follows: pH = 7.25 (+/- 0.9), pCO2 = 6.55 (+/- 1.39) kPa; BD = 6.61 (+/- 3.33) mmol/l, lactate 3.92 (+/- 1.81) mmol/l. The 3rd percentile of pH was 7.05 whereas the 97th percentile of lactate was 7.54 mmol/l. There was a close correlation between lactate and pH, and lactate and BD. Lactate concentration was higher in case of instrumental delivery compared to spontaneous one: 4.65 versus 3.76 mmol/l (p = 0.0001, Student test). No perfect correlation was found between lactate level and neonatal outcome but there was not a significant number of neonates with immediate complication. CONCLUSION Lactate measurements obtained with single use strip method are valuable and easy to perform.
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Affiliation(s)
- A Martin
- Service de Gynécologie-Obstétrique, Hôpital Saint-Jacques, CHU de Besançon, avenue du 8-Mai-1945, 25030 Besançon
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37
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Geslin C, Le Romancer M, Erauso G, Gaillard M, Perrot G, Prieur D. PAV1, the first virus-like particle isolated from a hyperthermophilic euryarchaeote, "Pyrococcus abyssi". J Bacteriol 2003; 185:3888-94. [PMID: 12813083 PMCID: PMC161591 DOI: 10.1128/jb.185.13.3888-3894.2003] [Citation(s) in RCA: 113] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We describe the first virus-like particle of a hyperthermophilic euryarchaeote which was discovered in a strain of "Pyrococcus abyssi" previously characterized in our laboratory. This particle, named PAV1, is lemon-shaped (120 nm x 80 nm), with a short tail terminated by fibers, and resembles the virus SSV1, the type member of the Fuselloviridae, isolated from Sulfolobus shibatae. Sensitivity of the virus-like particle to organic solvents and detergents suggested that the envelope of PAV1 may contain lipids in addition to proteins. It contains a double-stranded circular DNA of 18 kb which is also present in high copy number in a free form in the host cytoplasm. No integrated form of the PAV1 genome could be detected in the host chromosome. Under standard growth conditions, the host cells continuously release PAV1 particles into the culture supernatant without spontaneous lysis, with a maximum reached in the late stationary phase. UV, gamma irradiation, treatment with mitomycin C, and various physiological stresses had no effect on PAV1 production. Screening of a large number of Thermococcales isolates did not permit to find a sensitive host. These results suggest that PAV1 persists in the host strain in a stable carrier state rather than a prophage.
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Affiliation(s)
- C Geslin
- Université de Bretagne Occidentale, CNRS UMR 6539, Institut Universitaire Européen de la Mer, Technopôle Brest-Iroise, 29280 Plouzané, France.
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38
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Connat JL, Schnüriger V, Zanone R, Schaeffer C, Gaillard M, Faivre B, Rochette L. The neuropeptide calcitonin gene-related peptide differently modulates proliferation and differentiation of smooth muscle cells in culture depending on the cell type. Regul Pept 2001; 101:169-78. [PMID: 11495693 DOI: 10.1016/s0167-0115(01)00284-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Calcitonin gene-related peptide (CGRP) is a neuropeptide present around vasculature very early during development, when smooth muscle cells (SMC) are still proliferating and not yet totally differentiated. We investigated the effects of CGRP on proliferation and differentiation of SMC in culture; 10(-7) M CGRP added in the medium of cultured smooth muscle cells every 2 days did not significantly changed cells growth rate in 1% FCS. At the opposite, this treatment modulated proliferation of cells grown in 10% FCS medium. Two distinct populations of SMC with different growth rates were obtained from our primary cultures. SMC which proliferated slowly in the presence of 10% fetal calf serum (FCS) had growth rates positively influenced by CGRP. The quantity of alpha-smooth actin expressed by these cells was not influenced by the peptide. On the contrary, SMC which proliferated more rapidly in 10% FCS medium had growth rate inhibited by CGRP. In these cells, CGRP significantly reduced the amount of expressed alpha-smooth actin, an index of SMC differentiation. In both cases, the peptide significantly increased the level of mRNA for all the actin genes. In the light of this dual role of CGRP, it can be presumed that this peptide controls smooth muscle cells proliferation and differentiation in vivo and could thus regulate the homeostasis of the vessel wall.
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MESH Headings
- Actins/biosynthesis
- Actins/genetics
- Animals
- Aorta, Thoracic/cytology
- Blood Vessels/growth & development
- Blood Vessels/innervation
- Blotting, Western
- Calcitonin Gene-Related Peptide/pharmacology
- Cell Adhesion
- Cell Differentiation/drug effects
- Cell Division/drug effects
- Cell Size
- Cells, Cultured
- Culture Media/pharmacology
- Humans
- Kinetics
- Male
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/metabolism
- Protein Isoforms/biosynthesis
- Protein Isoforms/genetics
- RNA, Messenger/biosynthesis
- Rats
- Rats, Wistar
- Species Specificity
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Affiliation(s)
- J L Connat
- Université de Bourgogne, Biologie Animale Cellulaire et Moléculaire, Laboratoire de Physiopathologie et Pharmacologie Cardiovasculaires Expérimentales, IFR 100, 6 Bvd Gabriel, F-21000, Dijon, France.
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Peyman A, Scheunemann K, Will DW, Knolle J, Wehner V, Breipohl G, Stilz HU, Carniato D, Ruxer J, Gourvest J, Auberval M, Doucet B, Baron R, Gaillard M, Gadek TR, Bodary S. alpha(v)beta(3) Antagonists based on a central thiophene scaffold. Bioorg Med Chem Lett 2001; 11:2011-5. [PMID: 11454469 DOI: 10.1016/s0960-894x(01)00357-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A series of novel, highly potent alpha(v)beta(3) antagonists based on a thiophene scaffold and containing an acylguanidine as an Arg-mimetic is described. A number of structural features, such as cyclic versus open guanidine and a variety of lipophilic side chains, carbamates, sulfonamides and beta-amino acids were explored with respect to inhibition of alpha(v)beta(3) mediated cell adhesion and selectivity versus alpha(IIb)beta(3) binding. In addition, compound 19 was found to be active in the TPTX model of osteoporosis.
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Affiliation(s)
- A Peyman
- Aventis Pharma Deutschland GmbH, D-65926, Frankfurt, Germany.
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Kovarik J, Gaillard M, Martinez X, Bozzotti P, Lambert PH, Wild TF, Siegrist CA. Induction of adult-like antibody, Th1, and CTL responses to measles hemagglutinin by early life murine immunization with an attenuated vaccinia-derived NYVAC(K1L) viral vector. Virology 2001; 285:12-20. [PMID: 11414801 DOI: 10.1006/viro.2001.0945] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Although initially developed in adult animals, novel viral vectors expressing recombinant measles antigens must eventually prove their success in the early life setting, where the efficacy of the currently used live-attenuated measles virus vaccine is limited. The immunological requirements for vaccine candidates include the generation of protective antibody responses as well as the induction of Th1 and cytotoxic T lymphocytes (CTL) responses, which is challenging in the neonatal setting. Here, we report that young BALB/c mice immunized with a single dose of a vaccinia-based NYVAC(K1L) vector generate adult-like antihemagglutinin (HA) antibody responses as well as adult-like Th1 and CTL responses. Despite this strong immunogenicity in early life, antibody responses (but not T-cell responses) to a single dose of NYVAC(K1L)-HA remained susceptible to inhibition by preexisting measles antibodies, calling for use of prime-boost strategies. NYVAC(K1L)-HA is the first attenuated live viral vector demonstrated as capable of inducing adult-like antibody, Th1, and CTL responses against measles in an early life murine immunization model, a capacity previously only reported for measles DNA vaccines.
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Affiliation(s)
- J Kovarik
- World Health Organization Collaborating Centre for Neonatal Vaccinology, University of Geneva Medical School, Geneva, Switzerland.
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41
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Affiliation(s)
- R Mahadeva
- Respiratory Medicine Unit, Department of Medicine, University of Cambridge, Cambridge Institute for Medical Research, Wellcome Trust Centre for Molecular Mechanisms in Disease, Hills Road, Cambridge CB2 2XY, UK
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Pautas E, Gaillard M, Chambon-Pautas C, Siguret V, Andreux JP, Gaussem P. [Myelodysplastic syndromes. Diagnosis and care in patients over 70 years of age]. Presse Med 1999; 28:1771-8. [PMID: 10566284] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/14/2023] Open
Abstract
UNLABELLED A FREQUENT CONDITION IN GERIATRICS: Myelodysplastic syndromes comprise a group of bone marrow disorders characterized by abnormal hematopoetic stem cell clones. They are generally observed after 60 years of age with a peak frequency in the 70-80 year age group. Prevalence is probably underestimated and diagnosis is commonly made in geriatric wards. DIAGNOSIS Clinical presentations vary widely, making diagnosis a difficult task. Cytology studies play a predominant role. Recent progress in our understanding of myelodysplastic syndromes have been achieved with cytogenic and molecular biology techniques, although the diagnostic procedures and management of elderly subjects have changed little. DISEASE COURSE AND TREATMENT Prognosis of myleodysplastic syndromes is highly variable and mainly depends on the type of syndrome according to the international FAB classification. Therapeutic management in patients over 70 is limited in most cases to symptomatic treatment, principally with transfusional support.
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Affiliation(s)
- E Pautas
- Service de Médecine Interne Gériatrique, Hospitalier Charles Foix-Jean Rostand, Ivry-sur-Seine
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Abstract
Trimegestone is a novel norpregnane progestin that is being developed, in combination with estradiol, for the treatment of menopausal symptoms. The pharmacological characteristics of trimegestone have been evaluated in both in vitro and in vivo test systems, and compared with reference progestins. Interaction with hormonal steroid receptors from animal tissues and with human recombinant receptors in vitro has demonstrated that trimegestone has a high specificity and potency for the progesterone receptor, no affinity for the estrogen receptor, and weak affinity for androgen, glucocorticoid and mineralocorticoid receptors. With respect to progestomimetic activity in vivo, trimegestone was more potent than reference progestins in the endometrial transformation test in the rabbit, preventing the uterotrophic effect of estradiol in the immature mouse bioassay, and had more effect on traumatic deciduoma formation and greater oral antiovulatory activity in the rat. In vivo, trimegestone effectively maintained pregnancy in the rat, but was devoid of any uterotrophic activity. Trimegestone showed no androgenic, glucocorticoid, antiglucocorticoid or mineralocorticoid activity, but did show some antiandrogenic and antimineralocorticoid activity at higher doses. Administration of trimegestone to ovariectomized rats, in combination with estradiol, inhibited the uterotrophic effects of estradiol. At doses up to 1 mg/kg intravenously and 30 mg/kg orally, trimegestone was not associated with any unwanted pharmacological effects. Overall, the results show trimegestone to have a favorable pharmacological profile with potent progestomimetic activity.
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MESH Headings
- Administration, Oral
- Administration, Topical
- Animals
- Binding, Competitive
- Endometrium/drug effects
- Endometrium/physiopathology
- Female
- Humans
- Injections, Subcutaneous
- Levonorgestrel/pharmacology
- Medroxyprogesterone/pharmacology
- Mice
- Norethindrone/pharmacology
- Norpregnenes/pharmacology
- Progesterone Congeners/administration & dosage
- Progesterone Congeners/metabolism
- Progesterone Congeners/pharmacology
- Promegestone/administration & dosage
- Promegestone/analogs & derivatives
- Promegestone/metabolism
- Promegestone/pharmacology
- Rabbits
- Rats
- Rats, Sprague-Dawley
- Receptors, Androgen/drug effects
- Receptors, Androgen/metabolism
- Receptors, Estrogen/drug effects
- Receptors, Estrogen/metabolism
- Receptors, Glucocorticoid/drug effects
- Receptors, Glucocorticoid/metabolism
- Receptors, Mineralocorticoid/drug effects
- Receptors, Mineralocorticoid/metabolism
- Receptors, Progesterone/drug effects
- Receptors, Progesterone/metabolism
- Specific Pathogen-Free Organisms
- Uterus/drug effects
- Uterus/physiopathology
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45
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Gaillard M, Magnier G, Siguret V, Andreux M, Prado A, Gaussem P. [A case of tuberculous lymphadenitis]. Ann Biol Clin (Paris) 1999; 57:485-9. [PMID: 10432374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Affiliation(s)
- M Gaillard
- Laboratoire d'hématologie, Groupe hospitalier Charles Foix-Jean Rostand, 7, avenue de la République, 94205 Ivry-sur-Seine cedex
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46
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Moutel G, de Montgolfier S, Corviole K, Gaillard M, Durlach V, Leutenegger M, Adnet JJ, Hervé C. [Management of DNA banks: ethical concerns]. Presse Med 1999; 28:135-9. [PMID: 10026722] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/10/2023] Open
Abstract
With the creation of DNA banks, short and long-term studies can be conducted on the DNA of many individuals using stored cells and tissues. These studies allow an analysis of the pathophysiological impact of genetics and help define individual markers predictive of risk. Genome analysis is thus an important advance in medical science, providing essential information for establishing appropriate measures to slow disease development, limit severity or improve safe recovery. The use of genetic results may however have an adverse effect in certain situations if the genetic information collected were deviated from its purely medical purpose under the influence of social, occupational or economic factors. The aim of our study was to analyse the ethical challenges linked to the implementation of DNA banks in France, particularly to see how to maintain the concept of individual protection in biomedical research within the patient-physician relationship in the current context of legal and administrative regulations in France. In this study, we discuss a set of criteria which should be systematically evaluated in information collection and consent procedures prior to blood or tissue procurement for DNA bank purposes.
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Affiliation(s)
- G Moutel
- Laboratoire d'éthique médicale et de santé publique, Faculté Necker, Paris
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47
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Wolf M, Gaillard M, Hervé C. [Informed consent: what is the question? Correlation between practice and theory]. Presse Med 1997; 26:7-10. [PMID: 9615704] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Informed consent in medical or human experimentation is a concept generally accepted by most doctors. The foundation of informed consent is self-determination and, in the legal setting of France, contractual agreement. The practical application of informed consent in medical specialities such as psychiatrics or intensive care raises difficult problems subject to much debate. Contemporary history would suggest that the strength of informed consent may be highly insufficient to avoid the risk of dictated power dominating-patients. In order to find a solution to these problems, the field of action of informed consent must be widened. We propose here to define informed consent as one of many means to defend patient dignity and human rights.
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Affiliation(s)
- M Wolf
- Service de Médecine, centre hospitalier général, Pithiviers
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48
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Abstract
This preliminary study evaluates the prevalence of personality disorders (PD) in a sample of 37 elderly recovered depressed and non-demented patients, using the French version of the Vragenlijst voor Kenmezken van de Persoonlijkheid (VKP) or Questionnaire on Personality Traits (QPT). The prevalence of definite personality disorder was 65% with predominance of Cluster C and particularly dependent and avoidant PD. The rate of PDs was higher in early onset (73%) than in late onset (45%) geriatric depression, even though there is only a trend towards statistical significance (Chi square = 2.588, p = 0.107). These results are consistent with those of previous reports using different PD assessment methods, supporting evidence that the QPT could be useful in PD assessment of elderly French speaking patients.
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Affiliation(s)
- V Camus
- Geriatric Psychiatry Department, University of Lausanne, Switzerland.
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49
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Wolf M, Gaillard M, Hervé C. [Informed consent: what is the question? Correlation between practice and theory]. Presse Med 1997; 26:1725-9. [PMID: 9452738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- M Wolf
- Service de Médecine (MW), Centre hospitalier général, Pithiviers
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50
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Gaillard M, Mladinic L, Odobert MC, Pahud MJ, Riveiro I. [Sociotherapy: a new therapy?]. Rev Med Suisse Romande 1997; 117:885-890. [PMID: 9471653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Affiliation(s)
- M Gaillard
- Service universitaire de psychogériatrie de Prilly
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