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Siebert MA, Chevallier JM, D'Aurelle de Paladines D, Pottier Y, Msika S, Le Gall M, Bado A, Ribeiro-Parenti L. One-anastomosis Gastric Bypass (OAGB) in Rats. J Vis Exp 2018. [PMID: 30474647 DOI: 10.3791/58776] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
The goal of this protocol is to set up a preclinical model of bariatric surgery and, more specifically, OAGB in obese rats. Based on this preclinical model, longitudinal studies can be carried out to provide an improved understanding of the mechanisms underlying the outcomes seen after bariatric surgery in humans. For this purpose, rats are operated on through a laparotomy under general anesthesia with isoflurane. First, the surgeon creates a long and tubular gastric pouch: after greater curve and hiatal dissection, the nonglandular stomach is stapled and removed. Then, the remaining stomach is also stapled in order to create a gastric tube and exclude the antrum of the stomach. After that, the surgeon performs a single end-to-side gastrojejunostomy 35 cm from the duodenojejunal angle. This limb length has been chosen in order to reproduce the same ratio between the biliopancreatic limb (BPL) and common limb (CL) length as in human bariatric surgery. The operation ends by aponeurotic and cutaneous closure. The early postoperative management consists of subcutaneous hydration, an intramuscular prophylactic antibiotic injection, a parietal injection of xylocaine, the administration of painkillers, and a progressive reintroduction of diet.
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Affiliation(s)
- Matthieu A Siebert
- Institut national de la santé et de la recherche médicale (Inserm) unité mixte de recherche (UMR) 1149, Unité de formation et de recherche (UFR) de Médecine Paris Diderot, Universit é Paris Diderot, Assistance Publique-Hôpitaux de Paris (AP-HP);
| | | | - Diego D'Aurelle de Paladines
- Institut national de la santé et de la recherche médicale (Inserm) unité mixte de recherche (UMR) 1149, Unité de formation et de recherche (UFR) de Médecine Paris Diderot, Universit é Paris Diderot, Assistance Publique-Hôpitaux de Paris (AP-HP)
| | - Yohann Pottier
- Institut national de la santé et de la recherche médicale (Inserm) unité mixte de recherche (UMR) 1149, Unité de formation et de recherche (UFR) de Médecine Paris Diderot, Universit é Paris Diderot, Assistance Publique-Hôpitaux de Paris (AP-HP)
| | - Simon Msika
- Institut national de la santé et de la recherche médicale (Inserm) unité mixte de recherche (UMR) 1149, Unité de formation et de recherche (UFR) de Médecine Paris Diderot, Universit é Paris Diderot, Assistance Publique-Hôpitaux de Paris (AP-HP); Department of General and Visceral Surgery, Bichat-Claude Bernard University Hospital
| | - Maude Le Gall
- Institut national de la santé et de la recherche médicale (Inserm) unité mixte de recherche (UMR) 1149, Unité de formation et de recherche (UFR) de Médecine Paris Diderot, Universit é Paris Diderot, Assistance Publique-Hôpitaux de Paris (AP-HP)
| | - André Bado
- Institut national de la santé et de la recherche médicale (Inserm) unité mixte de recherche (UMR) 1149, Unité de formation et de recherche (UFR) de Médecine Paris Diderot, Universit é Paris Diderot, Assistance Publique-Hôpitaux de Paris (AP-HP)
| | - Lara Ribeiro-Parenti
- Institut national de la santé et de la recherche médicale (Inserm) unité mixte de recherche (UMR) 1149, Unité de formation et de recherche (UFR) de Médecine Paris Diderot, Universit é Paris Diderot, Assistance Publique-Hôpitaux de Paris (AP-HP); Department of General and Visceral Surgery, Bichat-Claude Bernard University Hospital
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Gardair C, Bousquet G, de Bazelaire C, Lehmann-Che J, de Cremoux P, Tran Van Nhieu J, Battistella M, Sockeel M, Calvani J, Peuchmaur M, Molina T, Gervais J, Moenaert E, Pottier Y, Prévaut L, Sekri K, Bertheau P. [Results of the Massive Open Online Course (MOOC) on cancer diagnosis and evaluation of its impact on the perception of the pathology specialty]. Ann Pathol 2017; 37:144-150. [PMID: 28318775 DOI: 10.1016/j.annpat.2017.02.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Accepted: 02/07/2017] [Indexed: 11/16/2022]
Abstract
The Massive Open Online Course (or MOOC) "Diagnostic Strategies Cancers", was hosted in autumn 2016 on the platform "France Université Numérique" and had two levels of learners: students in the field of health and biology and the general public. Of the 5285 learners in 81 different countries, 1237 (23%) were successfully certified. This MOOC was also integrated into the teaching program of medical students of Paris Diderot University and Paris 13 University. Using anonymous questionnaires before and after MOOC, it has been shown that pathology is less known than other medical specialties. Participation in this MOOC led to a marked improvement in participants' knowledge of the place and role of the pathologist in the diagnosis of cancers. Regarding the students who have followed the MOOC as part of their university course, their comments were very positive, but it is necessary to make substantial adjustments in the amounts and contents of the campus-based courses.
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Affiliation(s)
- Charlotte Gardair
- Université Paris Diderot, Sorbonne-Paris-Cité, 75013 Paris, France; Service d'anatomie et cytologie pathologiques, CHU Saint-Louis, AP-HP, 1, avenue Claude-Vellefaux, 75010 Paris, France
| | - Guilhem Bousquet
- Université Paris 13, Sorbonne-Paris-Cité, 93430 Villetaneuse, Seine-Saint-Denis, France; Service d'oncologie, CHU Avicenne, AP-HP, 93000 Bobigny, Seine-Saint-Denis, France
| | - Cédric de Bazelaire
- Université Paris Diderot, Sorbonne-Paris-Cité, 75013 Paris, France; Service de radiologie, CHU Saint-Louis, AP-HP, 75010 Paris, France
| | - Jaqueline Lehmann-Che
- Université Paris Diderot, Sorbonne-Paris-Cité, 75013 Paris, France; Unité d'oncologie moléculaire, CHU Saint-Louis, AP-HP, 75010 Paris, France
| | - Patricia de Cremoux
- Université Paris Diderot, Sorbonne-Paris-Cité, 75013 Paris, France; Unité d'oncologie moléculaire, CHU Saint-Louis, AP-HP, 75010 Paris, France
| | - Jeanne Tran Van Nhieu
- Université Paris-Est Créteil, 94000 Créteil, Val-de-Marne, France; Département de pathologie, CHU Henri-Mondor, AP-HP, 94000 Créteil, Val-de-Marne, France
| | - Maxime Battistella
- Université Paris Diderot, Sorbonne-Paris-Cité, 75013 Paris, France; Service d'anatomie et cytologie pathologiques, CHU Saint-Louis, AP-HP, 1, avenue Claude-Vellefaux, 75010 Paris, France
| | - Marie Sockeel
- Université Paris Diderot, Sorbonne-Paris-Cité, 75013 Paris, France; Service d'anatomie et cytologie pathologiques, CHU Saint-Louis, AP-HP, 1, avenue Claude-Vellefaux, 75010 Paris, France
| | - Julien Calvani
- Université Paris Diderot, Sorbonne-Paris-Cité, 75013 Paris, France; Service d'anatomie et cytologie pathologiques, CHU Saint-Louis, AP-HP, 1, avenue Claude-Vellefaux, 75010 Paris, France
| | - Michel Peuchmaur
- Université Paris Diderot, Sorbonne-Paris-Cité, 75013 Paris, France; Service de pathologie, hôpital Robert-Debré, AP-HP, 75019 Paris, France
| | - Thierry Molina
- Université Paris Descartes, Sorbonne-Paris-Cité, 75006 Paris, France; Service de pathologie, hôpital Necker, AP-HP, 75015 Paris, France
| | - Jocelyne Gervais
- Université Paris Diderot, Sorbonne-Paris-Cité, 75013 Paris, France; MédiTICE, université Paris Diderot, Sorbonne-Paris-Cité, 75010 Paris, France
| | - Emilie Moenaert
- Université Paris Diderot, Sorbonne-Paris-Cité, 75013 Paris, France; MédiTICE, université Paris Diderot, Sorbonne-Paris-Cité, 75010 Paris, France
| | - Yohann Pottier
- Université Paris Diderot, Sorbonne-Paris-Cité, 75013 Paris, France; MédiTICE, université Paris Diderot, Sorbonne-Paris-Cité, 75010 Paris, France
| | - Laurent Prévaut
- Université Paris Diderot, Sorbonne-Paris-Cité, 75013 Paris, France; MédiTICE, université Paris Diderot, Sorbonne-Paris-Cité, 75010 Paris, France
| | - Karima Sekri
- Université Paris Diderot, Sorbonne-Paris-Cité, 75013 Paris, France; MédiTICE, université Paris Diderot, Sorbonne-Paris-Cité, 75010 Paris, France
| | - Philippe Bertheau
- Université Paris Diderot, Sorbonne-Paris-Cité, 75013 Paris, France; Service d'anatomie et cytologie pathologiques, CHU Saint-Louis, AP-HP, 1, avenue Claude-Vellefaux, 75010 Paris, France.
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Gardair C, Bousquet G, Lehmann-Che J, de Bazelaire C, de Cremoux P, Tran Van Nhieu J, Sockeel M, Battistella M, Calvani J, Gervais J, Pottier Y, Prévaut L, Sekri K, Bertheau P. [Backstage of a massive open online course (MOOC) on cancer diagnosis]. Ann Pathol 2016; 36:305-311. [PMID: 27639771 DOI: 10.1016/j.annpat.2016.08.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 08/11/2016] [Indexed: 12/01/2022]
Abstract
Massive open online course (or MOOC) is a new online and open access teaching approach aimed at unlimited participation and providing interactions among students and teaching staff. These academic courses, often still free, lead to the delivery of a certificate of attendance and could soon also deliver a diploma. The MOOC "Stratégies diagnostiques des cancers" will be hosted in autumn 2016 on the platform "France Université Numérique" and will have two levels of learners: students in the field of health and biology and the general public. This MOOC will also be integrated into the teaching program of medical students of Paris Diderot University and Paris 13 University. The educational objective of this MOOC is to convey to all participants an overview of the diagnostic steps of cancers and of the various medical specialties involved in this diagnosis. The second week of the MOOC, entitled "tumor samples, macroscopic and microscopic analysis", presents the pathology specialty with the technical treatment of tissue or cell samples and the basic elements of the tissue section analysis to get a diagnosis of benign or malignant tumor. After this MOOC, it is planned to assess the impact of this new modality of teaching the pathology specialty or pathology, especially by the general public.
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Affiliation(s)
- Charlotte Gardair
- Université Paris Diderot, Sorbonne Paris Cité, 10, rue Françoise-Dolto, 75013 Paris, France; Service d'anatomie et cytologie pathologiques, CHU Saint-Louis, AP-HP, 1, avenue Claude-Vellefaux, 75010 Paris, France
| | - Guilhem Bousquet
- Université Paris 13, Sorbonne Paris Cité, 99, avenue Jean-Baptiste-Clément, 93430 Villetaneuse, France; Service d'oncologie, CHU Avicenne, AP-HP, 125, rue de Stalingrad, 93000 Bobigny, France
| | - Jacqueline Lehmann-Che
- Université Paris Diderot, Sorbonne Paris Cité, 10, rue Françoise-Dolto, 75013 Paris, France; Unité d'oncologie moléculaire, CHU Saint-Louis, AP-HP, 1, avenue Claude-Vellefaux, 75010 Paris, France
| | - Cédric de Bazelaire
- Université Paris Diderot, Sorbonne Paris Cité, 10, rue Françoise-Dolto, 75013 Paris, France; Service de radiologie, CHU Saint-Louis, AP-HP, 1, avenue Claude-Vellefaux, 75010 Paris, France
| | - Patricia de Cremoux
- Université Paris Diderot, Sorbonne Paris Cité, 10, rue Françoise-Dolto, 75013 Paris, France; Unité d'oncologie moléculaire, CHU Saint-Louis, AP-HP, 1, avenue Claude-Vellefaux, 75010 Paris, France
| | - Jeanne Tran Van Nhieu
- Université Paris-Est Créteil, 61, avenue du Général-de-Gaulle, 94000 Créteil, France; Département de pathologie, CHU Henri-Mondor, AP-HP, 51, avenue du Maréchal-de-Lattre-de-Tassigny, 94000 Créteil, France
| | - Marie Sockeel
- Université Paris Diderot, Sorbonne Paris Cité, 10, rue Françoise-Dolto, 75013 Paris, France; Service d'anatomie et cytologie pathologiques, CHU Saint-Louis, AP-HP, 1, avenue Claude-Vellefaux, 75010 Paris, France
| | - Maxime Battistella
- Université Paris Diderot, Sorbonne Paris Cité, 10, rue Françoise-Dolto, 75013 Paris, France; Service d'anatomie et cytologie pathologiques, CHU Saint-Louis, AP-HP, 1, avenue Claude-Vellefaux, 75010 Paris, France
| | - Julien Calvani
- Université Paris Diderot, Sorbonne Paris Cité, 10, rue Françoise-Dolto, 75013 Paris, France; Service d'anatomie et cytologie pathologiques, CHU Saint-Louis, AP-HP, 1, avenue Claude-Vellefaux, 75010 Paris, France
| | - Jocelyne Gervais
- Université Paris Diderot, Sorbonne Paris Cité, 10, rue Françoise-Dolto, 75013 Paris, France; MédiTICE, université Paris Diderot, Sorbonne Paris Cité, 10, avenue de Verdun, 75010 Paris, France
| | - Yohann Pottier
- Université Paris Diderot, Sorbonne Paris Cité, 10, rue Françoise-Dolto, 75013 Paris, France; MédiTICE, université Paris Diderot, Sorbonne Paris Cité, 10, avenue de Verdun, 75010 Paris, France
| | - Laurent Prévaut
- Université Paris Diderot, Sorbonne Paris Cité, 10, rue Françoise-Dolto, 75013 Paris, France; MédiTICE, université Paris Diderot, Sorbonne Paris Cité, 10, avenue de Verdun, 75010 Paris, France
| | - Karima Sekri
- Université Paris Diderot, Sorbonne Paris Cité, 10, rue Françoise-Dolto, 75013 Paris, France; MédiTICE, université Paris Diderot, Sorbonne Paris Cité, 10, avenue de Verdun, 75010 Paris, France
| | - Philippe Bertheau
- Université Paris Diderot, Sorbonne Paris Cité, 10, rue Françoise-Dolto, 75013 Paris, France; Service d'anatomie et cytologie pathologiques, CHU Saint-Louis, AP-HP, 1, avenue Claude-Vellefaux, 75010 Paris, France.
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Pottier Y, Pierard I, Barclay A, Masson PL, Coutelier JP. The mode of action of treatment by IgG of haemolytic anaemia induced by an anti-erythrocyte monoclonal antibody. Clin Exp Immunol 1996; 106:103-7. [PMID: 8870706 PMCID: PMC2200565 DOI: 10.1046/j.1365-2249.1996.d01-818.x] [Citation(s) in RCA: 15] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
In order to gain insight into the mechanisms by which the infusion of IgG can improve some autoimmune diseases, we induced haemolytic anaemia in mice by the injection of anti-erythrocyte MoAbs derived from NZB mice by S. Izui (Geneva). The IgG1 antibody 31-9D induces anaemia by erythrocyte sequestration in the spleen and liver, whereas the IgG2a antibody 34-3C triggers erythrophagocytosis (Shibata et al., Int Immunol 1990. 2:1133). Treatment of mice with pools of either human or mouse IgG clearly attenuated the anaemia induced by 34-3C, but not by 31-9D. Similar protection was obtained with human monoclonal IgGs from myeloma patients. Prior absorption by mouse erythrocytes did not affect the efficacy of the injected IgG. Treatment with Fc fragments also reduced the anaemia. In vitro experiments confirmed that 34-3C, but not 31-9D, triggered erythrocyte phagocytosis by murine macrophages. This process was completely inhibited by addition of polyclonal or myeloma IgG or of human Fc fragments. These results indicate that, in this model of autoimmune pathology, the protective effect of IgG is mediated by its interaction with the macrophage Fc receptors.
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MESH Headings
- Anemia, Hemolytic, Autoimmune/drug therapy
- Anemia, Hemolytic, Autoimmune/etiology
- Anemia, Hemolytic, Autoimmune/immunology
- Animals
- Antibodies, Monoclonal/blood
- Antibodies, Monoclonal/pharmacology
- Autoantibodies/blood
- Autoantibodies/pharmacology
- Erythrocytes/immunology
- Female
- Humans
- Immunization, Passive
- Immunoglobulin G/pharmacology
- Immunoglobulin G/therapeutic use
- Mice
- Mice, Inbred BALB C
- Mice, Inbred NZB
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Affiliation(s)
- Y Pottier
- Unit of Experimental Medicine, Université Catholique de Louvain, Bruxelles, Belgium
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