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Bonnet J, Ducroix-Roubertou S, Rogez S, Ajzenberg D, Courtioux B, Faucher JF. [Sleeping Sickness: A Cause of False Positive HIV Rapid Diagnostic Tests]. Med Trop Sante Int 2021; 1:mtsibulletin.2021.115. [PMID: 35586587 PMCID: PMC9022761 DOI: 10.48327/mtsibulletin.2021.115] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 06/04/2021] [Indexed: 11/17/2022]
Abstract
Approaching the mechanisms related to false positives HIV rapid diagnostic tests (RDT) in patients with sleeping sickness may help to improve the accuracy of screening for HIV infection in areas endemic for Human African trypanosomiasis (HAT).We report on a patient from Congo who was managed like an AIDS-associated meningoencephalitis, based on a false positive HIV RDT at admission, and eventually received a diagnosis of sleeping sickness. A further retrospective cohort study performed in patients with HAT shows that most of positive HIV RDT obtained prior to treatment for sleeping sickness are false positives. We found that half of them were cleared at the end of treatment course, suggesting an early clearance of some antibodies involved in cross-reactivity.A substantial clearance of HIV RDT false positives occurs during therapy for HAT. In areas where Elisa HIV tests are not readily available, repeating the HIV RDT at the end of therapy may help to identify roughly half of false positives.
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Affiliation(s)
- J. Bonnet
- Université de Limoges, U1094, Neuroépidémiologie tropicale, Institut d'épidémiologie et de neurologie tropicale, GEIST, Limoges, France
| | - S. Ducroix-Roubertou
- Service des maladies infectieuses et tropicales, Centre hospitalier universitaire de Limoges, Limoges, France
| | - S. Rogez
- Service de bacte?riologie, virologie, hygie?ne, Centre hospitalier universitaire de Limoges, Limoges, France
| | - D. Ajzenberg
- Université de Limoges, U1094, Neuroépidémiologie tropicale, Institut d'épidémiologie et de neurologie tropicale, GEIST, Limoges, France.,Service de parasitologie-mycologie, Centre hospitalier universitaire de Limoges, Limoges, France
| | - B. Courtioux
- Université de Limoges, U1094, Neuroépidémiologie tropicale, Institut d'épidémiologie et de neurologie tropicale, GEIST, Limoges, France
| | - J.-F. Faucher
- Université de Limoges, U1094, Neuroépidémiologie tropicale, Institut d'épidémiologie et de neurologie tropicale, GEIST, Limoges, France.,Service des maladies infectieuses et tropicales, Centre hospitalier universitaire de Limoges, Limoges, France,*
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Broussard D, Rivière P, Bonnet J, Fotsing G, Amiot A, Peyrin-Biroulet L, Rajca S, Buisson A, Gilleta C, Pelletier AL, Serrero M, Bouguen G, Altwegg R, Hebuterne X, Nancey S, Fumery M, Cadiot G, Nahon S, Rahier JF, Gornet JM, Vendrely V, Laharie D. Impact of abdominal or pelvic radiotherapy on disease activity in inflammatory bowel disease: a multicentre cohort study from the GETAID. Aliment Pharmacol Ther 2021; 53:400-409. [PMID: 33241906 DOI: 10.1111/apt.16176] [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] [Received: 06/14/2020] [Revised: 07/16/2020] [Accepted: 11/04/2020] [Indexed: 12/09/2022]
Abstract
BACKGROUND Abdominal or pelvic radiotherapy in inflammatory bowel disease (IBD) patients raises concerns regarding the risk of worsening of underlying disease. AIM To assess the impact of radiotherapy on IBD course. METHODS A retrospective multicentre study including IBD patients exposed to abdominal or pelvic irradiation was conducted, retrieving IBD activity by semester (6-month periods) before (from S-4 to S-1) and after (from S + 1 to S + 6) radiotherapy and IBD flare during follow-up. RESULTS Sixty-one patients (32 women, mean age 59 years), with 467 patient semesters of follow-up, treated for digestive (n = 31), urinary tract (n = 23) and gynaecological cancers (n = 7) were included. Rates of IBD activity per semester were, respectively, 21% (95% CI: 16-27) from S-4 to S-1; 12% (7-19) from S + 1 to S + 3 (P = 0.15 vs S-4 to S-1) and 16% (10-25) from S + 4 to S + 6 (P = 0.45 vs S-4 to S-1). With a median follow-up of 156 weeks (interquartile range: 82-365), rates of survival without IBD flare at 1 and 3 years after radiotherapy were 82.5% (73.2-93.0) and 70.6% (58.8-84.7). Moderate-to-severe acute radiotherapy-induced gut toxicity and the absence of concomitant chemotherapy were independently associated with an increased risk of flare. CONCLUSION Most patients with non-active IBD can be safely treated with abdominal or pelvic radiotherapy. Patients having acute gut toxicity and those without concomitant chemotherapy should be more closely monitored in the post-radiotherapy period.
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Gardenat A, Aldebert P, Deharo J, Bonnet J, Torras O, Deharo P, Bonnet G, Habib G. Safety and efficiency of multimodal imaging approach of patent foramen ovale closure in patients with cryptogenic stroke. Archives of Cardiovascular Diseases Supplements 2021. [DOI: 10.1016/j.acvdsp.2020.10.310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Hammoudi N, Cazals-Hatem D, Auzolle C, Gardair C, Ngollo M, Bottois H, Nancey S, Pariente B, Buisson A, Treton X, Fumery M, Bezault M, Seksik P, Le Bourhis L, Flejou JF, Allez M, Chirica M, Munoz-Bongrand N, Corte H, Beaupel N, Catry J, Gornet JM, Baudry C, Lourenco N, Maillet M, Tran-Minh ML, Chardiny V, Grand C, Gergaud B, Bonnet J, Chedouba L, Nisard A, Beaugerie L, Sokol H, Bourrier A, Nion-Larmurier I, Kirchgesner J, Quevrain E, Brot L, Chafai N, Lefevre JH, Tiret E, Svrcek M, Guedj N, Panis Y, Magiorri L, Ferron M, Bouhnik Y, Corcos O, Stefanescu C, Marteau P, Dray X, Chaput U, Kaci R, Dubois A, Bommelaer G, Goutte M, Barnich N, Coban D, Godfraind C, Zakeyh JJ, Desreumaux P, Nachury M, Sommeville C, Renaud F, Dupas JL, Loreau J, Brazier F, Chatelain D, Attencourt C, Sabbagh C, Leconte M, Boschetti G, Flourié B, François Y, Cotte E, Charlois AL, Falgon P, Hadjisavvas H, Moussata D, Chauvenet M, Boyer S, Traverse-Glehen A, Hebuterne X, Filippi J, Hofmann P, Rahili A, Patouraux S, Jouven X. Association Between Microscopic Lesions at Ileal Resection Margin and Recurrence After Surgery in Patients With Crohn's Disease. Clin Gastroenterol Hepatol 2020; 18:141-149.e2. [PMID: 31042575 DOI: 10.1016/j.cgh.2019.04.045] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 04/04/2019] [Accepted: 04/19/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIMS Different types of histologic lesions at the ileal margin, detected by histology, have been associated with increased rates of recurrence after ileocaecal surgery in patients with Crohn's disease (CD). We aimed to characterize histologic features of the ileal margin and to evaluate their association with disease recurrence. METHODS We collected histologic data from 211 patients with ileal or ileocolonic CD who underwent ileocolonic resections at hospitals in France from September 2010 through December 2016. Ileal margins were analyzed. Early endoscopic recurrence was defined by a Rutgeerts score of i2 or more, 6 months after surgery. We also collected data from 10 adults with healthy ileum who underwent ileocecal resection for colonic tumors (controls). Clinical relapse was defined by CD-related symptoms confirmed by imaging, endoscopy, therapy intensification, CD-related complication, or subsequent surgery. RESULTS Six months after surgery, 49% of patients had endoscopic recurrence; 5 years after surgery, 57% of patients had clinical relapse. Ileal margins were macroscopically affected in 20.9% of patients. CD transmural lesions at the margin (defined by mucosal ulceration or cryptitis, submucosal fibrosis and lymphoplasmacytic infiltrate of the subserosa) were observed in 13.6% of patients. Endoscopic recurrence was observed in 75% of patients with CD transmural lesions vs 46% of patients without (P =.005). In multivariate analysis, CD transmural lesions at the margin were independently associated with early endoscopic recurrence (OR, 3.83; 95% CI, 1.47-11.05; P =.008) and clinical recurrence (OR 2.04; 95% CI, 1.09-3.99; P =.026). CONCLUSION In patients with CD, transmural lesions at the ileal margin were associated with an increased risk of post-operative recurrence. Histologic features of the ileal margin should be included in making decisions about post-operative therapy.
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Affiliation(s)
- Nassim Hammoudi
- Université de Paris, Institut de Recherche Saint Louis, EMiLy, Inserm U1160, F-75010 Paris, France; Departement de Gastroentérologie, AP-HP, Hôpital Saint-Louis, F-75010 Paris, France
| | | | - Claire Auzolle
- Université de Paris, Institut de Recherche Saint Louis, EMiLy, Inserm U1160, F-75010 Paris, France; Departement de Gastroentérologie, AP-HP, Hôpital Saint-Louis, F-75010 Paris, France
| | | | - Marjolaine Ngollo
- Université de Paris, Institut de Recherche Saint Louis, EMiLy, Inserm U1160, F-75010 Paris, France
| | - Hugo Bottois
- Université de Paris, Institut de Recherche Saint Louis, EMiLy, Inserm U1160, F-75010 Paris, France
| | - Stéphane Nancey
- Gastroenterology Department, Lyon Sud Hospital, Hospices Civils de Lyon, Lyon, France
| | - Benjamin Pariente
- Gastroenterology Department, Hôpital Claude Huriez, University of Lille 2, Lille, France
| | - Anthony Buisson
- Service de Médecine de l'Appareil Digestif, CHU Clermont-Ferrand, 3iHP, M2iSH, Inserm U1071, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Xavier Treton
- Service de Gastroentérologie, MICI et Assistance Nutritive, Hôpital Beaujon, Clichy, France
| | - Mathurin Fumery
- Hepatogastroenterology Department, Amiens University Hospital, Amiens, France
| | - Madeleine Bezault
- Université de Paris, Institut de Recherche Saint Louis, EMiLy, Inserm U1160, F-75010 Paris, France
| | - Philippe Seksik
- Laboratoire des Biomolécules, INSERM, CNRS, PSL Research University, Ecole normale supérieure, AP-HP, Department of Gastroenterology, Saint Antoine Hospital, Sorbonne Universités, Paris, France
| | - Lionel Le Bourhis
- Université de Paris, Institut de Recherche Saint Louis, EMiLy, Inserm U1160, F-75010 Paris, France
| | | | - Jean-François Flejou
- Pathology Department, AP-HP, Hôpital Saint-Antoine, Faculté de Médecine Sorbonne Université, Paris, France
| | - Matthieu Allez
- Université de Paris, Institut de Recherche Saint Louis, EMiLy, Inserm U1160, F-75010 Paris, France; Departement de Gastroentérologie, AP-HP, Hôpital Saint-Louis, F-75010 Paris, France.
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Bonnet G, Pradier J, Casalta A, Jacquier A, Bonnet J. Silent thrombosis of a WATCHMAN device after Left Atrial Appendage ClosureDate from the RESET registry. Archives of Cardiovascular Diseases Supplements 2019. [DOI: 10.1016/j.acvdsp.2018.10.113] [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: 10/27/2022]
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Bonnet J, Durmort C, Mortier-Barrière I, Campo N, Jacq M, Moriscot C, Straume D, Berg KH, Håvarstein L, Wong YS, Vernet T, Di Guilmi AM. Nascent teichoic acids insertion into the cell wall directs the localization and activity of the major pneumococcal autolysin LytA. ACTA ACUST UNITED AC 2018; 2:24-37. [PMID: 32743129 PMCID: PMC7389264 DOI: 10.1016/j.tcsw.2018.05.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 05/17/2018] [Accepted: 05/18/2018] [Indexed: 12/14/2022]
Abstract
Peptidoglycan which sustains bacterial growth is targeted by b-lactam antibiotics. Spread of antibiotic resistance requires the development of new antibacterial drugs. The cell wall of Gram-positive bacteria carries teichoic acids and virulence factors. Function and surface localization of virulence factors are regulated by teichoic acids. Anti-bacterial strategy should target the localization of surface virulence factors.
The bacterial cell wall is in part composed of the peptidoglycan (PG) layer that maintains the cell shape and sustains the basic cellular processes of growth and division. The cell wall of Gram-positive bacteria also carries teichoic acids (TAs). In this work, we investigated how TAs contribute to the structuration of the PG network through the modulation of PG hydrolytic enzymes in the context of the Gram-positive Streptococcus pneumoniae bacterium. Pneumococcal TAs are decorated by phosphorylcholine residues which serve as anchors for the Choline-Binding Proteins, some of them acting as PG hydrolases, like the major autolysin LytA. Their binding is non covalent and reversible, a property that allows easy manipulation of the system. In this work, we show that the release of LytA occurs independently from its amidase activity. Furthermore, LytA fused to GFP was expressed in pneumococcal cells and showed different localization patterns according to the growth phase. Importantly, we demonstrate that TAs modulate the enzymatic activity of LytA since a low level of TAs present at the cell surface triggers LytA sensitivity in growing pneumococcal cells. We previously developed a method to label nascent TAs in live cells revealing that the insertion of TAs into the cell wall occurs at the mid-cell. In conclusion, we demonstrate that nascent TAs inserted in the cell wall at the division site are the specific receptors of LytA, tuning in this way the positioning of LytA at the appropriate place at the cell surface.
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Affiliation(s)
- J Bonnet
- Institut de Biologie Structurale (IBS), Univ. Grenoble Alpes, CEA, CNRS, 38044 Grenoble, France
| | - C Durmort
- Institut de Biologie Structurale (IBS), Univ. Grenoble Alpes, CEA, CNRS, 38044 Grenoble, France
| | - I Mortier-Barrière
- Laboratoire de Microbiologie et Génétique Moléculaires, Centre de Biologie Intégrative (CBI), Centre National de la Recherche Scientifique (CNRS), Université de Toulouse, UPS, F-31000 Toulouse, France
| | - N Campo
- Laboratoire de Microbiologie et Génétique Moléculaires, Centre de Biologie Intégrative (CBI), Centre National de la Recherche Scientifique (CNRS), Université de Toulouse, UPS, F-31000 Toulouse, France
| | - M Jacq
- Institut de Biologie Structurale (IBS), Univ. Grenoble Alpes, CEA, CNRS, 38044 Grenoble, France
| | - C Moriscot
- Institut de Biologie Structurale (IBS), Univ. Grenoble Alpes, CEA, CNRS, 38044 Grenoble, France
| | - D Straume
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, P.O. Box 5003, NO-1432 Aas, Norway
| | - K H Berg
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, P.O. Box 5003, NO-1432 Aas, Norway
| | - L Håvarstein
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, P.O. Box 5003, NO-1432 Aas, Norway
| | - Y-S Wong
- Département de Pharmacochimie Moléculaire (DPM), Univ. Grenoble Alpes, UMR 5063 CNRS, ICMG FR 2607, 38 041 Grenoble, France
| | - T Vernet
- Institut de Biologie Structurale (IBS), Univ. Grenoble Alpes, CEA, CNRS, 38044 Grenoble, France
| | - A M Di Guilmi
- Institut de Biologie Structurale (IBS), Univ. Grenoble Alpes, CEA, CNRS, 38044 Grenoble, France
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Di Guilmi AM, Bonnet J, Peiβert S, Durmort C, Gallet B, Vernet T, Gisch N, Wong YS. Specific and spatial labeling of choline-containing teichoic acids in Streptococcus pneumoniae by click chemistry. Chem Commun (Camb) 2018; 53:10572-10575. [PMID: 28894874 DOI: 10.1039/c7cc05646j] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Propargyl-choline was efficiently incorporated into teichoic acid (TA) polymers on the surface of Streptococcus pneumoniae. The introduction of a fluorophore by click chemistry enabled sufficient labeling of the pneumococcus, as well as its specific detection when mixed with other bacterial species. The labeling is localized at the septal site, suggesting a similar location of the TA and peptidoglycan (PG) synthetic machineries. This method is a unique opportunity to improve our understanding of the spatial location of pneumococcal TA biosynthesis.
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Affiliation(s)
- A M Di Guilmi
- Univ. Grenoble Alpes, CEA, CNRS, IBS, F-38000 Grenoble, France
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Bonnet G, Pradier J, Salaun E, Camus O, Cuisset T, Jacquier A, Bonnet J. Cardiac computed tomography angiography to detect residual peridevice leak after left atrial appendage occlusion with a Watchman device. Archives of Cardiovascular Diseases Supplements 2018. [DOI: 10.1016/j.acvdsp.2017.11.306] [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: 11/17/2022]
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Deharo P, Quilici J, Bassez C, Bonnet G, Lambert M, Morange P, Alessi M, Fourcade L, Bonnet J, Cuisset T. Benefit of switching dual antiplatelet therapy after ACS according to platelet reactivity: A prespecified analysis of the TOPIC randomized study. Archives of Cardiovascular Diseases Supplements 2018. [DOI: 10.1016/j.acvdsp.2017.11.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Bonnet G, Pradier J, Spychaj J, Salaun E, Pankert M, Cuisset T, Bonnet J. Left atrial appendage percutaneous closure with a watchman device in patients with a contraindication to long-term oral anticoagulation. One-year follow-up. Archives of Cardiovascular Diseases Supplements 2018. [DOI: 10.1016/j.acvdsp.2017.11.288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Deharo P, Quilici J, Bassez C, Bonnet G, Lambert M, Morange P, Alessi M, Bonnet J, Cuisset T. Impact of diabetes on benefit of switching dual antiplatelet therapy after acute coronary syndrome: A subanalysis of the TOPIC randomized study. Archives of Cardiovascular Diseases Supplements 2018. [DOI: 10.1016/j.acvdsp.2017.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Camus O, Bonnet G, Lemoine C, Resseguier N, Massoure P, Fourcade L, Bonnet J. The amount of material retrieved by thrombus aspiration in patients referred for an Acute Coronary Syndrome is associated with their clinical and angiographic characteristics. Archives of Cardiovascular Diseases Supplements 2018. [DOI: 10.1016/j.acvdsp.2017.11.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Deharo P, Quilci J, Bassez C, Bonnet G, Lambert M, Fourcade L, Morange P, Alessi M, Bonnet J, Cuisset T. Benefit of switching dual antiplatelet therapy after acute coronary syndrome: The TOPIC (Timing Of Platelet Inhibition after acute Coronary Syndrome) randomized study. Archives of Cardiovascular Diseases Supplements 2018. [DOI: 10.1016/j.acvdsp.2017.11.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Deharo P, Quilci J, Bassez C, Bonnet G, Lambert M, Morange P, Alessi M, Fourcade L, Bonnet J, Cuisset T. Benefit of switching dual antiplatelet therapy after ACS on dual antiplatelet therapy adherence: A prespecified analysis of the TOPIC randomized study. Archives of Cardiovascular Diseases Supplements 2018. [DOI: 10.1016/j.acvdsp.2017.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Bonnet G, Quilici J, Lambert M, Cuisset T, Mouret J, Bonnet J. Non-HDL Cholesterol is predictive of diffusion of coronary artery disease in young patients presenting with a myocardial infarction. Archives of Cardiovascular Diseases Supplements 2018. [DOI: 10.1016/j.acvdsp.2017.11.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Bonnet J, Cartannaz J, Tourcier G, Contreras-Martel C, Kleman JP, Morlot C, Vernet T, Di Guilmi AM. Autocatalytic association of proteins by covalent bond formation: a Bio Molecular Welding toolbox derived from a bacterial adhesin. Sci Rep 2017; 7:43564. [PMID: 28252635 PMCID: PMC5333627 DOI: 10.1038/srep43564] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 01/25/2017] [Indexed: 11/26/2022] Open
Abstract
Unusual intramolecular cross-links present in adhesins from Gram-positive bacteria have been used to develop a generic process amenable to biotechnology applications. Based on the crystal structure of RrgA, the Streptococcus pneumoniae pilus adhesin, we provide evidence that two engineered protein fragments retain their ability to associate covalently with high specificity, in vivo and in vitro, once isolated from the parent protein. We determined the optimal conditions for the assembly of the complex and we solved its crystal structure at 2 Å. Furthermore, we demonstrate biotechnological applications related to antibody production, nanoassembly and cell-surface labeling based on this process we named Bio Molecular Welding.
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Affiliation(s)
- J Bonnet
- Institut de Biologie Structurale (IBS), Univ. Grenoble Alpes, CEA, CNRS, 38044 Grenoble, France
| | - J Cartannaz
- Institut de Biologie Structurale (IBS), Univ. Grenoble Alpes, CEA, CNRS, 38044 Grenoble, France
| | - G Tourcier
- Institut de Biosciences et Biotechnologies de Grenoble (BIG), Univ. Grenoble Alpes, CEA, CNRS, 38044 Grenoble, France
| | - C Contreras-Martel
- Institut de Biologie Structurale (IBS), Univ. Grenoble Alpes, CEA, CNRS, 38044 Grenoble, France
| | - J P Kleman
- Institut de Biologie Structurale (IBS), Univ. Grenoble Alpes, CEA, CNRS, 38044 Grenoble, France
| | - C Morlot
- Institut de Biologie Structurale (IBS), Univ. Grenoble Alpes, CEA, CNRS, 38044 Grenoble, France
| | - T Vernet
- Institut de Biologie Structurale (IBS), Univ. Grenoble Alpes, CEA, CNRS, 38044 Grenoble, France
| | - A M Di Guilmi
- Institut de Biologie Structurale (IBS), Univ. Grenoble Alpes, CEA, CNRS, 38044 Grenoble, France
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Bonnet G, Salaun E, Deffarges S, Pankert M, Cuisset T, Bonnet J. Measurements by CT angiography of the left atrial appendage before percutaneous closure with a watchman device. Archives of Cardiovascular Diseases Supplements 2017. [DOI: 10.1016/s1878-6480(17)30178-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Bonnet G, Salaun E, Deffarges S, Mouret J, Cuisset T, Bonnet J. Percutaneous closure of left atrial appendage with a watchman device: a single center study. Archives of Cardiovascular Diseases Supplements 2017. [DOI: 10.1016/s1878-6480(17)30212-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Bonnet G, Salaun E, Deffarges S, Cuisset T, Bonnet J. Cardiac computed tomography angiography is helpful to select patients for left atrial appendage occlusion with a watchman device. Archives of Cardiovascular Diseases Supplements 2017. [DOI: 10.1016/s1878-6480(17)30213-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Werler S, Sachse M, Grömminger S, Neder U, Bonnet J, Busche S, Hofmann W. Taking NIPT to the next level: detection of fetal trisomy 21 based on quantitative real-time PCR. Geburtshilfe Frauenheilkd 2016. [DOI: 10.1055/s-0036-1593190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Laffont MA, Sommet A, Alvarez M, Bruyand M, Bonnet J, Marchou B, Delobel P. A-10: Complications infectieuses des lymphomes liés au VIH pris en charge par une association rituximab-polychimiothérapie. Med Mal Infect 2014. [DOI: 10.1016/s0399-077x(14)70093-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Chasseriaud W, Gerbaud E, Montaudon M, Gilbert S, Cochet H, Pucheu Y, Horovitz A, Bonnet J, Douard H, Coste P. Effect of ivabradine on left ventricular remodelling after reperfused myocardial infarction: a pilot study. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.p1329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Huyghe E, Genebes C, Filleron T, Soulie M, Jonca F, Belossi P, Thoulouzan M, Delaunay B, Ducassou A, Aziza R, Bonnet J, Brun T, Delannes M, Bachaud JM. Résultats carcinologiques et fonctionnels (urinaires et digestifs) obtenus chez 748 patients consécutifs traités par implant permanent de grains d’iode125 pour un adénocarcinome prostatique. Prog Urol 2012. [DOI: 10.1016/j.purol.2012.08.008] [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: 10/27/2022]
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Bachaud JM, Genebes C, Filleron T, Soulie M, Jonca F, Aziza R, Bonnet J, Delannes M, Belossi P, Thoulouzan M, Delaunay B, Ducassou A, Brun T, Huyghe E. Curiethérapie prostatique par implant permanent de grains d’iode125 : comparaison de trois techniques successives d’implantation. Prog Urol 2012. [DOI: 10.1016/j.purol.2012.08.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Benchimol D, Pillois X, Oysel-Mestre M, Sagardiluz P, Bonnet J. Ankle brachial index using an automatic blood pressure device in occupational medicine: relevance in routine examination and comparison with Framingham cardio-vascular risk score. Int J Clin Pract 2012; 66:862-6. [PMID: 22897463 DOI: 10.1111/j.1742-1241.2012.02984.x] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
AIM The aim of this study was to assess the feasibility and relevance of determining ankle brachial index (ABI) using an automatic blood pressure device in subjects seen for their annual routine examination by occupational physicians and to compare the obtained ABI with the Framingham score. PATIENTS AND METHODS Sixteen physicians randomly recruited 634 subjects in 12 departments of occupational medicine. Subjects aged between 40 and 60 years underwent a determination of ABI using an OMRON HM 722 device and the analysis of Framingham score. Other analysed variables were: sex, age, smoking habit, hypertension, diabetes, hypercholesterolemia, glycaemia, total cholesterol, HDL and LDL cholesterol and triglycerides levels. RESULTS Mean age of the population studied was 48.1 ± 6.0 years; 73% were men, 36% were smokers, 14% had hypertension, 3.3% diabetes and 22% hypercholesterolemia. Biochemical values were glycaemia 0.90 ± 0.30 g/l, total cholesterol 2.10 ± 0.4 g/l, HDL cholesterol level 0.50 ± 0.20 g/l, LDL cholesterol level 1.30 ± 0.40 g/l, and triglycerides 1.40 ± 1.0 g/l. Mean ABI were 1.1 ± 0.1 in both legs. Mean Framingham score was 8.2 ± 5.4%. Only 20 subjects (3%) had an ABI < 0.90. No relation was found between pathological ABI and Framingham score (abnormal ABI : 9.9 ± 5.5 vs. normal ABI : 8.2 ± 5.4, NS). CONCLUSION The determination of ABI using a simple commercially available automatic blood pressure device is feasible and easy to implement by preventive or general physicians in all kinds of routine examinations. In our opinion automatic ABI very easy and quick to determine provides, in addition to Framingham score, a simple and useful tool to detect subjects at high cardio-vascular risk.
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Affiliation(s)
- D Benchimol
- Hopital Cardiologique, Avenue Magellan, 33604 Pessac, France Les Portes de Cauderan, 33000 Bordeaux, France
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Cassol E, Bonnet J, Porcheron D, Mazeron JJ, Peiffert D, Alapetite C. [Ballistic quality assurance]. Cancer Radiother 2012; 16 Suppl:S30-7. [PMID: 22632786 DOI: 10.1016/j.canrad.2011.06.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2011] [Accepted: 06/30/2011] [Indexed: 10/28/2022]
Abstract
This review describes the ballistic quality assurance for stereotactic intracranial irradiation treatments delivered with Gamma Knife® either dedicated or adapted medical linear accelerators. Specific and periodic controls should be performed in order to check the mechanical stability for both irradiation and collimation systems. If this step remains under the responsibility of the medical physicist, it should be done in agreement with the manufacturer's technical support. At this time, there are no recent published guidelines. With technological developments, both frequency and accuracy should be assessed in each institution according to the treatment mode: single versus hypofractionnated dose, circular collimator versus micro-multileaf collimators. In addition, "end-to-end" techniques are mandatory to find the origin of potential discrepancies and to estimate the global ballistic accuracy of the delivered treatment. Indeed, they include frames, non-invasive immobilization devices, localizers, multimodal imaging for delineation and in-room positioning imaging systems. The final precision that could be reasonably achieved is more or less 1mm.
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Affiliation(s)
- E Cassol
- Unité de radiophysique et de radioprotection des hôpitaux de Toulouse, Hôtel Dieu Saint-Jacques, 2 rue Viguerie,Toulouse cedex 9, France.
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Degail MA, Hughes GJ, Maule C, Holmes C, Lilley M, Pebody R, Bonnet J, Bermingham A, Bracebridge S. A human metapneumovirus outbreak at a community hospital in England, July to September 2010. Euro Surveill 2012; 17:20145. [PMID: 22516049] [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] [Indexed: 05/31/2023] Open
Abstract
We describe an outbreak of human metapneumovirus (hMPV) which occurred in July-September 2010 at a community hospital in the East of England. Based on the medical and nursing records, cases were retrospectively defined as suspected if they had had an influenza-like illness (ILI), and probable if they had had an ILI and an epidemiological link to a laboratory-confirmed case. Of a total of 17 symptomatic inpatients, five were classified as probable cases, five were laboratory confirmed and seven were suspected. The attack rate was 29.4% for confirmed and probable cases combined. The median age of symptomatic inpatients was 85 years-old (range 68-96) and the majority (16/17) of symptomatic inpatients had an underlying medical condition. Control measures introduced appeared to restrict further exposure of susceptible patients to infection although modelling suggested that up to four of 10 confirmed and probable cases (40%) could have been prevented through more timely diagnosis and recognition of an outbreak. These findings suggest that there should be increased awareness of hMPV infection within healthcare settings, particularly when the population at risk has a high prevalence of underlying co-morbidities.
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Affiliation(s)
- M A Degail
- Health Protection Agency, Colindale, United Kingdom
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Degail MA, Hughes GJ, Maule C, Holmes C, Lilley M, Pebody R, Bonnet J, Bermingham A, Bracebridge S. A human metapneumovirus outbreak at a community hospital in England, July to September 2010. Euro Surveill 2012. [DOI: 10.2807/ese.17.15.20145-en] [Citation(s) in RCA: 8] [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: 11/20/2022] Open
Abstract
Binary file ES_Abstracts_Final_ECDC.txt matches
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Affiliation(s)
- M A Degail
- European Programme for Intervention Epidemiology Training (EPIET), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden
- Health Protection Agency, Colindale, United Kingdom
| | - G J Hughes
- Health Protection Agency East of England, Cambridge, United Kingdom
| | - C Maule
- Hertfordshire Community NHS Trust, Welwyn Garden City, United Kingdom
| | - C Holmes
- Hertfordshire Community NHS Trust, Welwyn Garden City, United Kingdom
| | - M Lilley
- Bedfordshire and Hertfordshire Health Protection Unit, Letchworth, United Kingdom
| | - R Pebody
- Health Protection Agency, Colindale, United Kingdom
| | - J Bonnet
- Hertfordshire Community NHS Trust, Welwyn Garden City, United Kingdom
| | - A Bermingham
- Health Protection Agency, Colindale, United Kingdom
| | - S Bracebridge
- Health Protection Agency East of England, Cambridge, United Kingdom
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Bonnet J, Bounor-Legaré V, Boisson F, Melis F, Camino G, Cassagnau P. Phosphorus based organic–inorganic hybrid materials prepared by reactive processing for EVA fire retardancy. Polym Degrad Stab 2012. [DOI: 10.1016/j.polymdegradstab.2012.01.018] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Velde ICT, Bonnet J, Tanke HJ, Ploem JS. Reflection contrast microscopy performed on epi-illumination microscope stands: Comparison of reflection contrast- and epi-polarization microscopy. J Microsc 2011. [DOI: 10.1111/j.1365-2818.1990.tb03014.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Kahloula K, Slimani M, Dubois M, Bonnet J. D-cycloserine enhances spatial learning performances of rats chronically exposed to lead during the developmental period. African Journal of Neurological Sciences 2010. [DOI: 10.4314/ajns.v28i1.55141] [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: 11/17/2022]
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Ducassou A, David I, Bonnet J, Delannes M. Étude rétrospective du contrôle local et du résultat cosmétique de 147 carcinomes de la face après curiethérapie interstitielle. Cancer Radiother 2009. [DOI: 10.1016/j.canrad.2009.08.081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Bonnet J, Baer T, Neukomm S. Investigations on the Intermediate Metabolism of Steroid Hormones and Carcinogenic Compounds. Oncology 2009. [DOI: 10.1159/000224054] [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: 11/19/2022]
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Pillois X, Do Thi NP, Reynaud A, Benchimol D, Bonnet J. Abstract: P867 HPA1 POLYMORPHISM IN APOLIPOPROTEIN C1 GENE IS ASSOCIATED WITH CORONARY ARTERY DISEASE SEVERITY. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)70988-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Benchimol D, Mazanof M, Dubroca B, Benchimol H, Bernard V, Couffinhal T, Dartigues JF, Roudaut R, Pillois X, Bonnet J. Detection of coronary stenoses by stress echocardiography using a previously implanted pacemaker for ventricular pacing: preliminary report of a new method. Clin Cardiol 2009; 23:842-8. [PMID: 11097132 PMCID: PMC6655253 DOI: 10.1002/clc.4960231111] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND The number of patients with pacemakers has been increasing and a large number of them will present with chest pain or symptoms suggesting angina pectoris. Myocardial ischemia and presence of coronary artery disease are difficult to detect and assess by noninvasive methods in patients with a pacemaker; the electrocardiogram (ECG) at rest and during exercise is usually very difficult to analyze in terms of ischemia or even presence of an acute myocardial infarction. HYPOTHESIS To detect significant coronary stenosis in patients with previously implanted pacemakers, we tested a new stress echocardiography method using incremental ventricular pacing by already implanted pacemakers. METHODS We studied prospectively 25 consecutive patients who underwent stress echocardiography with increasing ventricular pacing up to either 85% of the age-predicted maximal heart rate or chest pain. Positive tests were defined by new hypokinesia or worsening of a preexisting alteration in wall motion in at least two adjacent territories. All patients underwent coronary angiograms to define the presence and severity of coronary stenoses. RESULTS Among the 25 tests, 11 (44%) were stopped for chest pain. 1 (4%) for moderate discomfort, 1 (4%) for a drop in blood pressure, and the target pacing rate was achieved in the tests of the remaining 12 patients (48%). There were no complications. Thirteen patients had significant stenoses. In 10 cases, stress echocardiography was a true positive test with respect to coronary angiography. There were 11 true negative, 1 false positive, and 3 false negative tests. The sensitivity was 77%, specificity was 90%, the positive predictive value was 91%, and the negative predictive value 79%. The accuracy was 84%. CONCLUSIONS This new stress echocardiography method appears feasible, easy, safe, and effective for detection of significant coronary stenoses in patients with pacemakers.
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Affiliation(s)
- D Benchimol
- Service de Cardiologie et Maladies Vasculaires, Hôpital Cardiologique, Pessac, France
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Bonnet J, Blouet A, David I, Marre D, Delannes M. Quality control in pulsed dose rate brachytherapy with Ir-192 afterloading system: The use of radiochromic films. Brachytherapy 2008. [DOI: 10.1016/j.brachy.2008.02.255] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Reboul JR, Guasch C, Ferrandis JY, Bonnet J. Stepped horn actuated Kelvin probe. Rev Sci Instrum 2008; 79:025110. [PMID: 18315332 DOI: 10.1063/1.2841075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We have developed an original Kelvin probe system using an ultrasonic stepped horn sonotrode. This actuator is optimized in order to maximize the velocity of the tip end, and hence to increase the Kelvin current detected. Such development is essential to improve surface potential measurements at small spatial scale.
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Affiliation(s)
- J-R Reboul
- IES, UMR 5214 UM2/CNRS, cc082, Université de Montpellier 2, Place E. Bataillon, F-34095 Montpellier Cedex 05, France.
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Lebrecht D, Deveaud C, Beauvoit B, Bonnet J, Kirschner J, Mueller K, Venhoff N, Walker UA. Uridine supplementation with Mitocnol antagonizes antiretroviral nucleoside analogue-induced mitochondrial peripheral and cerebral neuropathy in vivo. J Int AIDS Soc 2008. [DOI: 10.1186/1758-2652-11-s1-p148] [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: 11/10/2022] Open
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Bachaud JM, Delannes M, Marre D, Bonnet J, Jonca F, Soulie M, Huyghe E. Évaluation delafonction éjaculatoire après curiethérapie interstitielle prostatique pargrains d'iode 125. Cancer Radiother 2007. [DOI: 10.1016/j.canrad.2007.09.104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Macgrogan G, Hostein I, Chibon F, Geneste G, Petersen M, Velasco V, De Mascarel I, Soubeyran I, Bui M, Coindre J, Parrens M, De Mascarel A, Belaud-Rotureau M, Idrissi Y, Turmot M, Merlio J, Bonnet J, Colotte M, Tuffet S. Accélération de la fixation par le micro-ondes : l’expérience bordelaise. Ann Pathol 2007. [DOI: 10.1016/s0242-6498(07)92881-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Vieillevigne L, Hangard G, Marre D, Bonnet J, Rives M, Bachaud JM. Apport d'une fonction objectif basée surladose équivalente uniforme surlesplans detraitements parmodulation d'intensité (RCMI). Cancer Radiother 2007. [DOI: 10.1016/j.canrad.2007.09.076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Bonnet J, Davignon J, McPherson R, Tedgui A, Simoneau D, Martineau P, Nozza A. PO23-785 LDL-C AND CRP IN ATORVASTATIN TREATED STABLE CORONARY ARTERY DISEASE PATIENTS: THE CAP (COMPARATIVE ATORVASTATIN PLEOTROPIC) EFFECTS STUDY RESULTS. ATHEROSCLEROSIS SUPP 2007. [DOI: 10.1016/s1567-5688(07)71795-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Pommier P, Delannes M, LeFloch O, Bernier V, Baron MH, Thomas L, Malet C, Bonnet J, Louisot P, Aletti P, Goubard O, Chemin A, Chirat F, Lebivic S, Montbarbon X, Bachaud JM, Votron L, Lasbareilles O, Desmettre O, Bringeon G, Gassa F, Peiffert D. L'expérience française de l'utilisation d'un projecteur de source pour la curiethérapie prostatique exclusive par implants permanents d'iode radioactif : faisabilité et données de toxicité aiguë. Cancer Radiother 2006; 10:559-64. [PMID: 16959520 DOI: 10.1016/j.canrad.2006.07.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2006] [Accepted: 07/12/2006] [Indexed: 10/24/2022]
Abstract
PURPOSE To analyse a new technique for prostate brachytherapy with permanent Iodine implants characterized by the use of a seed projector after a 3D dosimetric peroperative treatment planning (FIRST technique). PATIENTS AND METHOD 395 patients have been treated in France with this technique in six radiotherapy centres between November 2002 and December 2005 for a localized prostate cancer. RESULTS Thirteen patients (3.3%) developped a urinary retention, and respectively 7.8 and 26.5% an acute RTOG grade 3 and 2 toxicity. The 6-weeks IPSS score was equal or lower to 15 in 73% with a 11 median IPSS value. A failure of the loading with the seed-projector, leading to a manual loading of the seeds, occurred in 9 patients (2.3%) in two centres, directly related to the loading procedure with the seed-projector in 5 cases. The median duration of the procedure was reduced by 30 minutes for the patients treated in 2005. CONCLUSIONS This multicenter study establishes the feasibility of the routine use of a seed projector for permanent iodine 125 prostate implants with an initial tolerance similar to the best results published for other implants techniques.
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Affiliation(s)
- P Pommier
- Centre Léon-Bérard, 28, rue Laënnec, 69373 Lyon, France.
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Bianchi-Demicheli F, Perrin E, Dupanloup A, Dumont P, Bonnet J, Berthoud M, Kulier R, Bettoli L, Lorenzi-Cioldi F, Chardonnens D. Contraceptive counselling and social representations: a qualitative study. Swiss Med Wkly 2006; 136:127-34. [PMID: 16633957 DOI: 2006/07/smw-11218] [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] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Contraceptive use is a complex issue and several studies have been conducted in an effort to understand user behaviour. It is of interest to explore the representations of professionals who give advice on contraception, since their views could have an impact on contraceptive use. METHODS Individual in-depth interviews of 65 healthcare professionals likely to provide contraceptive advice to patients at a Swiss maternity unit. RESULTS 83% of healthcare professionals interviewed were favourable to contraception in general while being highly critical of its practical efficacy. The methods most often spontaneously cited were oral contraceptive pills, male condom, intrauterine devices and hormonal implants. Theoretically, all methods should be proposed during contraceptive counselling but in practice interviewees have different social representations of user groups and associate them with specific contraceptive methods. Personal experience appears to play a bigger role than scientific knowledge. CONCLUSIONS The counsellor's social representations probably play an important role in determining user behaviour. These representations should be taken into consideration in the training of healthcare professionals in this field.
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Affiliation(s)
- F Bianchi-Demicheli
- Psychosomatic Gynaecology and Sexology Unit, Department of Psychiatry, Geneva University Hospitals, Switzerland.
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Bianchi-Demicheli F, Perrin E, Dupanloup A, Dumont P, Bonnet J, Berthoud M, Kulier R, Bettoli L, Lorenzi-Cioldi F, Chardonnens D. Contraceptive counselling and social representations: a qualitative study. Swiss Med Wkly 2006; 136:127-34. [PMID: 16633957 DOI: 10.4414/smw.2006.11218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND Contraceptive use is a complex issue and several studies have been conducted in an effort to understand user behaviour. It is of interest to explore the representations of professionals who give advice on contraception, since their views could have an impact on contraceptive use. METHODS Individual in-depth interviews of 65 healthcare professionals likely to provide contraceptive advice to patients at a Swiss maternity unit. RESULTS 83% of healthcare professionals interviewed were favourable to contraception in general while being highly critical of its practical efficacy. The methods most often spontaneously cited were oral contraceptive pills, male condom, intrauterine devices and hormonal implants. Theoretically, all methods should be proposed during contraceptive counselling but in practice interviewees have different social representations of user groups and associate them with specific contraceptive methods. Personal experience appears to play a bigger role than scientific knowledge. CONCLUSIONS The counsellor's social representations probably play an important role in determining user behaviour. These representations should be taken into consideration in the training of healthcare professionals in this field.
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Affiliation(s)
- F Bianchi-Demicheli
- Psychosomatic Gynaecology and Sexology Unit, Department of Psychiatry, Geneva University Hospitals, Switzerland.
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Milia J, Teyssier F, Dalenc F, Ader I, Delmas C, Pradines A, Lajoie-Mazenc I, Baron R, Bonnet J, Cohen-Jonathan E, Favre G, Toulas C. Farnesylated RhoB inhibits radiation-induced mitotic cell death and controls radiation-induced centrosome overduplication. Cell Death Differ 2005; 12:492-501. [PMID: 15776002 DOI: 10.1038/sj.cdd.4401586] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Our previous results demonstrated that expressing the GTPase ras homolog gene family, member B (RhoB) in radiosensitive NIH3T3 cells increases their survival following 2 Gy irradiation (SF2). We have first demonstrated here that RhoB expression inhibits radiation-induced mitotic cell death. RhoB is present in both a farnesylated and a geranylgeranylated form in vivo. By expressing RhoB mutants encoding for farnesylated (RhoB-F cells), geranylgeranylated or the CAAX deleted form of RhoB, we have then shown that only RhoB-F expression was able to increase the SF2 value by reducing the sensitivity of these cells to radiation-induced mitotic cell death. Moreover, RhoB-F cells showed an increased G2 arrest and an inhibition of centrosome overduplication following irradiation mediated by the Rho-kinase, strongly suggesting that RhoB-F may control centrosome overduplication during the G2 arrest after irradiation. Overall, our results for the first time clearly implicate farnesylated RhoB as a crucial protein in mediating cellular resistance to radiation-induced nonapoptotic cell death.
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Affiliation(s)
- J Milia
- INSERM U563, CPTP, Département d'Innovation Thérapeutique et d'Oncologie Moléculaire, Institut Claudius Regaud, 20-24 rue du Pont St Pierre, 31052 Toulouse Cedex, France
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Le Morvan V, Formento JL, Milano G, Bonnet J, Robert J. Techniques de recherche des polymorphismes génétiques. ONCOLOGIE 2005. [DOI: 10.1007/s10269-005-0146-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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