1
|
Servais L, Boschetti G, Meunier C, Gay C, Cotte E, François Y, Rozieres A, Fontaine J, Cuminal L, Chauvenet M, Charlois AL, Isaac S, Traverse-Glehen A, Roblin X, Flourié B, Valette PJ, Nancey S. Intestinal Conventional Ultrasonography, Contrast-Enhanced Ultrasonography and Magnetic Resonance Enterography in Assessment of Crohn's Disease Activity: A Comparison with Surgical Histopathology Analysis. Dig Dis Sci 2022; 67:2492-2502. [PMID: 34052948 DOI: 10.1007/s10620-021-07074-3] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 05/24/2021] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND AIMS Contrast-enhanced ultrasonography (CEUS) is a potential interesting method for assessing accurately Crohn's disease (CD) activity. We compared the value of intestinal ultrasonography (US) coupled with contrast agent injection with that of magnetic resonance enterography (MRE) in the assessment of small bowel CD activity using surgical histopathology analysis as reference. METHODS Seventeen clinically active CD patients (14 women, mean age 33 years) requiring an ileal or ileocolonic resection were prospectively enrolled. All performed a MRE and a US coupled with contrast agent injection (CEUS) less than 8 weeks prior to surgery. Various imaging qualitative and quantitative parameters were recorded and their respective performance to detect disease activity, disease extension and presence of complications was compared to surgical histopathological analysis. RESULTS The median wall thickness measured by US differed significantly between patients with non-severely active CD (n = 5) and those with severely active CD (n = 12) [7.0 mm, IQR (6.5-9.5) vs 10.0 mm, IQR (8.0-12.0), respectively; p = 0.03]. A non-significant trend was found with MRE with a median wall thickness in severe active CD of 10.0 mm, IQR (8.0-13.7) compared with 8.0 mm, IQR (7.5-10.5) in non-severely active CD (p = 0.07). The area under the ROC curve (AUROC) of the wall thickness assessed by US and MRE to identify patients with or without severely active CD on surgical specimens were 0.85, 95% CI (0.64-1.04), p = 0.03 and 0.80, 95% CI (0.56-1.01), p = 0.07, respectively. Among the parameters derived from the time-intensity curve during CEUS, time to peak and rise time were the two most accurate markers [AUROC = 0.88, 95% CI (0.70-1.04), p = 0.02 and 0.86, 95% CI (0.68-1.04), p = 0.03] to detect patients with severely active CD assessed on surgical specimens. CONCLUSION The accuracy of intestinal CEUS is close to that of conventional US to detect disease activity. A thickened bowel and shortened time to peak and rise time were the most accurate to identify CD patients with severe histological disease activity.
Collapse
Affiliation(s)
- L Servais
- Department of Gastroenterology, Lyon-Sud Hospital, Hospices Civils de Lyon, 165 Chemin du Grand Revoyet, 69495, Pierre-Bénite, France
| | - G Boschetti
- Department of Gastroenterology, Lyon-Sud Hospital, Hospices Civils de Lyon, 165 Chemin du Grand Revoyet, 69495, Pierre-Bénite, France.,INSERM U1111, International Center for Research in Infectiology, Lyon, France
| | - C Meunier
- Department of Gastroenterology, Lyon-Sud Hospital, Hospices Civils de Lyon, 165 Chemin du Grand Revoyet, 69495, Pierre-Bénite, France.,INSERM U1111, International Center for Research in Infectiology, Lyon, France
| | - C Gay
- Department of Gastroenterology, Lyon-Sud Hospital, Hospices Civils de Lyon, 165 Chemin du Grand Revoyet, 69495, Pierre-Bénite, France
| | - E Cotte
- Department of Digestive Surgery, Lyon-Sud Hospital, Hospices Civils de Lyon, Pierre-Bénite, France
| | - Y François
- Department of Digestive Surgery, Lyon-Sud Hospital, Hospices Civils de Lyon, Pierre-Bénite, France
| | - A Rozieres
- INSERM U1111, International Center for Research in Infectiology, Lyon, France
| | - J Fontaine
- Department of Pathology, Lyon-Sud Hospital, Hospices Civils de Lyon, Pierre-Bénite, France
| | - L Cuminal
- Department of Radiology, Lyon-Sud Hospital, Hospices Civils de Lyon, Pierre-Bénite, France
| | - M Chauvenet
- Department of Gastroenterology, Lyon-Sud Hospital, Hospices Civils de Lyon, 165 Chemin du Grand Revoyet, 69495, Pierre-Bénite, France
| | - A L Charlois
- Department of Gastroenterology, Lyon-Sud Hospital, Hospices Civils de Lyon, 165 Chemin du Grand Revoyet, 69495, Pierre-Bénite, France
| | - S Isaac
- Department of Pathology, Lyon-Sud Hospital, Hospices Civils de Lyon, Pierre-Bénite, France
| | - A Traverse-Glehen
- Department of Pathology, Lyon-Sud Hospital, Hospices Civils de Lyon, Pierre-Bénite, France
| | - X Roblin
- Department of Gastroenterology, CHU Saint-Etienne, Saint-Etienne, France
| | - B Flourié
- Department of Gastroenterology, Lyon-Sud Hospital, Hospices Civils de Lyon, 165 Chemin du Grand Revoyet, 69495, Pierre-Bénite, France.,INSERM U1111, International Center for Research in Infectiology, Lyon, France
| | - P J Valette
- Department of Radiology, Lyon-Sud Hospital, Hospices Civils de Lyon, Pierre-Bénite, France
| | - S Nancey
- Department of Gastroenterology, Lyon-Sud Hospital, Hospices Civils de Lyon, 165 Chemin du Grand Revoyet, 69495, Pierre-Bénite, France. .,INSERM U1111, International Center for Research in Infectiology, Lyon, France.
| |
Collapse
|
2
|
Téllez-Pérez SK, Wyffels S, KleinJan H, Meunier C, Gerards R. Advanced nitrogen removal from anaerobically pre-treated potato wastewater via partial nitritation-anammox in a continuous fed SBR. Chemosphere 2021; 280:130716. [PMID: 33965866 DOI: 10.1016/j.chemosphere.2021.130716] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 01/08/2021] [Revised: 04/14/2021] [Accepted: 04/24/2021] [Indexed: 06/12/2023]
Abstract
Partial nitritation-anammox was carried out successfully in a continuous fed Sequencing Batch Reactor (cf-SBR), composed of 3 compartments operated in continuous mode. The reactor was operated with floccular biomass (flocs) and biofilm to remove nitrogen from the anaerobic effluent from the potato industry at different nitrogen loading rates (0.16 g TN L-1 d-1 - 0.8 g TN L-1 d-1). At the maximum nitrogen loading rate (NLR) evaluated the nitrogen removal and ammonia oxidation achieved were 62% and 74% respectively. During the evaluation of the NLR, it was observed an improvement of the characteristics of the sludge, improving the Sludge Volumetric Index (SVI) from 228 to 63 mL g-1 MLSS. Moreover, molecular analysis (qPCR) confirmed the presence of anammox bacteria on the flocs and in the biofilm from the cf-SBR. The results showed the capability of the reactor to carry out the partial nitritation-anammox in the same reactor at pilot scale. The cf-SBR was presented as a suitable and feasible technology for advanced nitrogen removal under partial nitritation and anammox conditions.
Collapse
Affiliation(s)
- S K Téllez-Pérez
- Research and Development Department, Waterleau Group NV, Wespelaar, 3150, Belgium.
| | - S Wyffels
- Research and Development Department, Waterleau Group NV, Wespelaar, 3150, Belgium
| | - H KleinJan
- CEBEDEAU, Research and Expertise Center for Water, Allée de La Découverte, 11 (B53), Quartier Polytech 1, Liège, 4000, Belgium
| | - C Meunier
- CEBEDEAU, Research and Expertise Center for Water, Allée de La Découverte, 11 (B53), Quartier Polytech 1, Liège, 4000, Belgium
| | - R Gerards
- Research and Development Department, Waterleau Group NV, Wespelaar, 3150, Belgium
| |
Collapse
|
3
|
Boeri J, Meunier C, Le Corronc H, Branchereau P, Timofeeva Y, Lejeune FX, Mouffle C, Arulkandarajah H, Mangin JM, Legendre P, Czarnecki A. Two opposite voltage-dependent currents control the unusual early development pattern of embryonic Renshaw cell electrical activity. eLife 2021; 10:62639. [PMID: 33899737 PMCID: PMC8139835 DOI: 10.7554/elife.62639] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 04/24/2021] [Indexed: 11/25/2022] Open
Abstract
Renshaw cells (V1R) are excitable as soon as they reach their final location next to the spinal motoneurons and are functionally heterogeneous. Using multiple experimental approaches, in combination with biophysical modeling and dynamical systems theory, we analyzed, for the first time, the mechanisms underlying the electrophysiological properties of V1R during early embryonic development of the mouse spinal cord locomotor networks (E11.5–E16.5). We found that these interneurons are subdivided into several functional clusters from E11.5 and then display an unexpected transitory involution process during which they lose their ability to sustain tonic firing. We demonstrated that the essential factor controlling the diversity of the discharge pattern of embryonic V1R is the ratio of a persistent sodium conductance to a delayed rectifier potassium conductance. Taken together, our results reveal how a simple mechanism, based on the synergy of two voltage-dependent conductances that are ubiquitous in neurons, can produce functional diversity in embryonic V1R and control their early developmental trajectory.
Collapse
Affiliation(s)
- Juliette Boeri
- INSERM, UMR_S 1130, CNRS, UMR 8246, Neuroscience Paris Seine, Institute of Biology Paris Seine, Sorbonne Univ, Paris, France
| | - Claude Meunier
- Centre de Neurosciences Intégratives et Cognition, CNRS UMR 8002, Institut Neurosciences et Cognition, Université de Paris, Paris, France
| | - Hervé Le Corronc
- INSERM, UMR_S 1130, CNRS, UMR 8246, Neuroscience Paris Seine, Institute of Biology Paris Seine, Sorbonne Univ, Paris, France.,Univ Angers, Angers, France
| | | | - Yulia Timofeeva
- Department of Computer Science and Centre for Complexity Science, University of Warwick, Coventry, United Kingdom.,Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom
| | - François-Xavier Lejeune
- Institut du Cerveau et de la Moelle Epinière, Centre de Recherche CHU Pitié-Salpétrière, INSERM, U975, CNRS, UMR 7225, Sorbonne Univ, Paris, France
| | - Christine Mouffle
- INSERM, UMR_S 1130, CNRS, UMR 8246, Neuroscience Paris Seine, Institute of Biology Paris Seine, Sorbonne Univ, Paris, France
| | - Hervé Arulkandarajah
- INSERM, UMR_S 1130, CNRS, UMR 8246, Neuroscience Paris Seine, Institute of Biology Paris Seine, Sorbonne Univ, Paris, France
| | - Jean Marie Mangin
- INSERM, UMR_S 1130, CNRS, UMR 8246, Neuroscience Paris Seine, Institute of Biology Paris Seine, Sorbonne Univ, Paris, France
| | - Pascal Legendre
- INSERM, UMR_S 1130, CNRS, UMR 8246, Neuroscience Paris Seine, Institute of Biology Paris Seine, Sorbonne Univ, Paris, France
| | - Antonny Czarnecki
- INSERM, UMR_S 1130, CNRS, UMR 8246, Neuroscience Paris Seine, Institute of Biology Paris Seine, Sorbonne Univ, Paris, France.,Univ. Bordeaux, CNRS, EPHE, INCIA, Bordeaux, France
| |
Collapse
|
4
|
Dupras R, Mills L, Robert G, Meunier C, Chorfi Y. 91 Can propylene glycol modulate insulin and insulin-like growth factor-1 in superovulated dairy heifers? Reprod Fertil Dev 2019. [DOI: 10.1071/rdv31n1ab91] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The aim of this study was to determine the effect of propylene glycol (PPG) on serum concentrations of insulin and insulin-like growth factor (IGF)-1 in superovulated dairy heifers. We hypothesised that administration of PPG would have a positive effect on superovulation results via increased insulin and IGF-1. A total of 20 clinically healthy Holstein heifers with an average age of 12 months were used for this experiment. Superovulation was performed using a standard protocol. Briefly, each heifer received 3mg of oestradiol-17β IM and an intravaginal progesterone-releasing insert (CIDR) containing 1.9g of progesterone at random stages of the oestrous cycle (designated Day 0). From Day 4 to 8, heifers received a total of 200mg of NIH-follicle-stimulating hormone-P1 administered intramuscularly through 9 injections of decreasing doses (from 50 to 10mg) at 12-h intervals. On Day 7, heifers received 2 injections of 500µg of cloprostenol, a PGF2α analogue, at ~6-h intervals, after which intravaginal inserts were removed. Artificial insemination was performed on Day 10, 12h after treatment with 100µg of gonadotropin-releasing hormone IM. Embryos were flushed from the uterus of donor heifers 6 days after AI. The method consisted of simultaneously using 1 catheter per uterine horn. Catheters were maintained in place to perform 2 flushes 1h apart. A total of 1L of flushing medium was used, 700 and 300mL for the first and the second flush, respectively. Embryos were assessed for viability immediately after collection using the IETS classification. Heifers were divided into 2 groups (PPG and control group). From Day 4 to 14 of the superovulation protocol, PPG group received a daily dose of 400mL of a 66.7% propylene glycol solution, whereas the control group received the same amount of water. Two months later, the same experiment was conducted by inverting the groups. At Day 4 and 14, four blood samples were collected to measure insulin and IGF-1 at 25-min intervals. The first sample (0) was taken before heifers received PPG or water. Insulin was analysed using an ELISA kit following manufacturer’s instructions, whereas IGF-1 was determined using a chemiluminescence immunoassay. Embryo associated data were analysed using t-test. Both IGF-1 and insulin data were analysed using a two-way ANOVA, followed by Bonferroni post-hoc test. Treatment with PPG had no effect on the number of transferable embryos (8±5.1v. 7±5.5), degenerated embryos (0.5±0.8v. 1.5±2.4), or unfertilized oocytes (0.3±0.7v. 0.7±1.2) recovered. There was also no effect of PPG on IGF-1 serum concentrations at the beginning (Day 4) or the end (Day 14) of the treatment regimen. However, PPG treatment enhanced (P = 0.02) serum insulin concentrations 50min after administration on Day 4 (10.69 v. 6.88 pmol/L), as well as at 25 (19.58 v. 9.64 pmol/L) and 50min (16.67v. 8.21 pmol/L) on Day 14. It has been suggested that PPG metabolism may stimulate insulin and IGF-1 secretion, which can promote embryo development. However, in the present study, there was no effect of oral doses of PPG on IGF-1. Although higher serum concentrations of insulin were observed after PPG treatment, there was no effect of PPG treatment on the number of transferable embryos recovered following superovulation.
Collapse
|
5
|
Dupras R, Mills L, Meunier C, Chorfi Y. 90 Effects of treatment with the nonsteroidal anti-inflammatory drug Anafen prior to embryo recovery and the number of embryo flush procedures performed on prostaglandin levels in uterine fluid and pregnancy rate following embryo transfer. Reprod Fertil Dev 2019. [DOI: 10.1071/rdv31n1ab90] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Some studies have shown that performing a second flush during embryo collection can increase the number of embryos recovered. However, this technique results in greater uterine manipulation that may increase PGF2α in the uterine fluid of donor cows and affect pregnancy rate in recipient females. Two experiments were conducted (1) to determine whether PGF2α concentration in uterine fluid was affected by treatment with a non-steroidal anti-inflammatory drug (NSAID) before embryo recovery and (2) to determine whether the percent of recipients becoming pregnant following embryo transfer (P/ET) was affected by flush number. In both experiments, lactating Holstein cows were used as donors (n=18 and 34, respectively) and subjected to a standard superovulation protocol (Baracaldo et al. 2000 Theriogenology 53, 1239-1250, DOI: 10.1016/S0093-691X(00)00268-5). Embryo recovery was performed using 2 catheters that were inserted simultaneously into the uterus, 1 into each horn. During the first flush, a volume of 300mL of flush medium was used in each horn. At the end of the first flush approximately 75mL of fluid was left and, after 1h, a second flush was performed to recover the remaining fluid. Samples were taken from each horn at the first and second flush to determine PGF2α concentration using a bovine PGFM ELISA kit. Data for PGF2α concentrations in uterine fluid were presented as the average of both uterine horns. In Exp. 1, donors were randomly assigned to be treated with or without 1.2g of the NSAID Anafen (ketoprofen) IM 20min before embryo recovery. In Exp. 2, recovered grade-1 embryos from the first and second flush procedures were frozen in ethylene glycol and subsequently transferred to synchronized Holstein heifers (n=106 and 49 for the first and second flushes, respectively). Pregnancy was diagnosed by rectal palpation at Day 60. All data were analysed using t-test. In Exp. 1, Anafen treatment 20min before embryo recovery reduced PGF2α in uterine fluid during the second flush procedure (105.9±11.4v. 43.6±5.7 pg/mL; P<0.001), but not during the first (54.7±7.3v. 44.2±5.6 pg/mL; P=0.34). In Exp. 2, PGF2α in uterine fluid was greater for the second flush as compared to the first flush (95.9±7.4v. 56.3±5.5 pg/mL; P<0.001). A total of 345 viable embryos were recovered from the 34 donors in Exp. 2 (n=276 and 69 for the first and second flushes, respectively). The P/ET at Day 60 was greater (P<0.05) for recipients that received embryos from the first flush as compared to recipients that received embryos from the second flush (64.2v. 49.0%). Taken together, the results of the present study indicate that the second flush procedure results in greater PGF2α levels in uterine fluid and that embryos recovered during the second flush are less likely to establish pregnancy following transfer. Moreover, pretreatment of donors with the NSAID Anafen reduced PGF2α levels in uterine fluid during the second flush. Further research is needed to determine whether treatment of donors with NSAID can improve the P/ET achieved following the transfer of embryos recovered following a second flush procedure.
Collapse
|
6
|
Palussière J, Chomy F, Savina M, Deschamps F, Gaubert JY, Renault A, Bonnefoy O, Laurent F, Meunier C, Bellera C, Mathoulin-Pelissier S, de Baere T. Radiofrequency ablation of stage IA non-small cell lung cancer in patients ineligible for surgery: results of a prospective multicenter phase II trial. J Cardiothorac Surg 2018; 13:91. [PMID: 30143031 PMCID: PMC6109264 DOI: 10.1186/s13019-018-0773-y] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [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: 01/15/2018] [Accepted: 06/26/2018] [Indexed: 12/19/2022] Open
Abstract
Background A prospective multicenter phase II trial to evaluate the survival outcomes of percutaneous radiofrequency ablation (RFA) for patients with stage IA non-small cell lung cancer (NSCLC), ineligible for surgery. Methods Patients with a biopsy-proven stage IA NSCLC, staging established by a positron emission tomography-computed tomography (PET-CT), were eligible. The primary objective was to evaluate the local control of RFA at 1-year. Secondary objectives were 1- and 3-year overall survival (OS), 3-year local control, lung function (prior to and 3 months after RFA) and quality of life (prior to and 1 month after RFA). Results Of the 42 patients (mean age 71.7 y) that were enrolled at six French cancer centers, 32 were eligible and assessable. Twenty-seven patients did not recur at 1 year corresponding to a local control rate of 84.38% (95% CI, [67.21–95.72]). The local control rate at 3 years was 81.25% (95% CI, [54.35–95.95]). The OS rate was 91.67% (95% CI, [77.53–98.25]) at 1 year and 58.33% (95% CI, [40.76–74.49]) at 3 years. The forced expiratory volume was stable in most patients apart from two, in whom we observed a 10% decrease. There was no significant change in the global health status or in the quality of life following RFA. Conclusion RFA is an efficient treatment for medically inoperable stage IA NSCLC patients. RFA is well tolerated, does not adversely affect pulmonary function and the 3-year OS rate is comparable to that of stereotactic body radiotherapy, in similar patients. Trial registration ClinicalTrials.gov Identifier NCT01841060 registered in November 2008.
Collapse
Affiliation(s)
- J Palussière
- Department of Interventional Radiology, Institut Bergonié, 229 Cours de l'Argonne, 33000, Bordeaux, France.
| | - F Chomy
- Department of Medical Oncology, Institut Bergonié, 229 Cours de l'Argonne, 33000, Bordeaux, France
| | - M Savina
- Department of Clinical and Epidemiological Research, Institut Bergonié, 229 Cours de l'Argonne, 33000, Bordeaux, France
| | - F Deschamps
- Department of Interventional Imaging, Institut Gustave Roussy, 114 Rue Edouard Vaillant, 94800 Villejuif, Paris, France
| | - J Y Gaubert
- Department of Imaging, CHU Timone, 264 Rue Saint-Pierre, 13385, Marseille, France
| | - A Renault
- Department of Imaging, CHU Pau, 4 Boulevard Hauterive, 64000, Pau, France
| | - O Bonnefoy
- Department of Imaging, CHU Pau, 4 Boulevard Hauterive, 64000, Pau, France
| | - F Laurent
- Department of Imaging, CHU Haut Lévêque, Avenue Magellan, 33600, Pessac, France
| | - C Meunier
- Department of Imaging, CHU Rennes, 2 rue Henri Le Guilloux, 35033, Rennes, France
| | - C Bellera
- Department of Clinical and Epidemiological Research, Institut Bergonié, 229 Cours de l'Argonne, 33000, Bordeaux, France
| | - S Mathoulin-Pelissier
- Department of Clinical and Epidemiological Research, Institut Bergonié, 229 Cours de l'Argonne, 33000, Bordeaux, France
| | - T de Baere
- Department of Interventional Imaging, Institut Gustave Roussy, 114 Rue Edouard Vaillant, 94800 Villejuif, Paris, France
| |
Collapse
|
7
|
Seguret F, Courouble N, Meunier C. Typologie de l’activité des établissements français de Soins de suite et de réadaptation à partir des données 2016 du Programme de médicalisation des systèmes d’information. Rev Epidemiol Sante Publique 2018. [DOI: 10.1016/j.respe.2018.01.061] [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
|
8
|
Wergifosse V, Delrée M, Meunier C, Pauvert M, Wanet M, Bihin B, Daisne JF. Étude randomisée prospective entre deux masques pour la stéréotaxie crânienne : comparaison de la précision et du confort du patient. Cancer Radiother 2017. [DOI: 10.1016/j.canrad.2017.08.016] [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]
|
9
|
Bousquet J, Bourret R, Camuzat T, Augé P, Bringer J, Noguès M, Jonquet O, de la Coussaye JE, Ankri J, Cesari M, Guérin O, Vellas B, Blain H, Arnavielhe S, Avignon A, Combe B, Canovas G, Daien C, Dray G, Dupeyron A, Jeandel C, Laffont I, Laune D, Marion C, Pastor E, Pélissier JY, Galan B, Reynes J, Reuzeau JC, Bedbrook A, Granier S, Adnet PA, Amouyal M, Alomène B, Bernard PL, Berr C, Caimmi D, Claret PG, Costa DJ, Cristol JP, Fesler P, Hève D, Millot-Keurinck J, Morquin D, Ninot G, Picot MC, Raffort N, Roubille F, Sultan A, Touchon J, Attalin V, Azevedo C, Badin M, Bakhti K, Bardy B, Battesti MP, Bobia X, Boegner C, Boichot S, Bonnin HY, Bouly S, Boubakri C, Bourrain JL, Bourrel G, Bouix V, Bruguière V, Cade S, Camu W, Carre V, Cavalli G, Cayla G, Chiron R, Coignard P, Coroian F, Costa P, Cottalorda J, Coulet B, Coupet AL, Courrouy-Michel MC, Courtet P, Cros V, Cuisinier F, Danko M, Dauenhauer P, Dauzat M, David M, Davy JM, Delignières D, Demoly P, Desplan J, Dujols P, Dupeyron G, Engberink O, Enjalbert M, Fattal C, Fernandes J, Fouletier M, Fraisse P, Gabrion P, Gellerat-Rogier M, Gelis A, Genis C, Giraudeau N, Goucham AY, Gouzi F, Gressard F, Gris JC, Guillot B, Guiraud D, Handweiler V, Hayot M, Hérisson C, Heroum C, Hoa D, Jacquemin S, Jaber S, Jakovenko D, Jorgensen C, Kouyoudjian P, Lamoureux R, Landreau L, Lapierre M, Larrey D, Laurent C, Léglise MS, Lemaitre JM, Le Quellec A, Leclercq F, Lehmann S, Lognos B, Lussert CM, Makinson A, Mandrick K, Mares P, Martin-Gousset P, Matheron A, Mathieu G, Meissonnier M, Mercier G, Messner P, Meunier C, Mondain M, Morales R, Morel J, Mottet D, Nérin P, Nicolas P, Nouvel F, Paccard D, Pandraud G, Pasdelou MP, Pasquié JL, Patte K, Perrey S, Pers YM, Portejoie F, Pujol JLE, Quantin X, Quéré I, Ramdani S, Ribstein J, Rédini-Martinez I, Richard S, Ritchie K, Riso JP, Rivier F, Robine JM, Rolland C, Royère E, Sablot D, Savy JL, Schifano L, Senesse P, Sicard R, Stephan Y, Strubel D, Tallon G, Tanfin M, Tassery H, Tavares I, Torre K, Tribout V, Uziel A, Van de Perre P, Venail F, Vergne-Richard C, Vergotte G, Vian L, Vialla F, Viart F, Villain M, Viollet E, Ychou M, Mercier J. MACVIA-LR (Fighting Chronic Diseases for Active and Healthy Ageing in Languedoc-Roussillon): A Success Story of the European Innovation Partnership on Active and Healthy Ageing. J Frailty Aging 2017; 5:233-241. [PMID: 27883170 DOI: 10.14283/jfa.2016.105] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The Région Languedoc Roussillon is the umbrella organisation for an interconnected and integrated project on active and healthy ageing (AHA). It covers the 3 pillars of the European Innovation Partnership on Active and Healthy Ageing (EIP on AHA): (A) Prevention and health promotion, (B) Care and cure, (C) and (D) Active and independent living of elderly people. All sub-activities (poly-pharmacy, falls prevention initiative, prevention of frailty, chronic respiratory diseases, chronic diseases with multimorbidities, chronic infectious diseases, active and independent living and disability) have been included in MACVIA-LR which has a strong political commitment and involves all stakeholders (public, private, patients, policy makers) including CARSAT-LR and the Eurobiomed cluster. It is a Reference Site of the EIP on AHA. The framework of MACVIA-LR has the vision that the prevention and management of chronic diseases is essential for the promotion of AHA and for the reduction of handicap. The main objectives of MACVIA-LR are: (i) to develop innovative solutions for a network of Living labs in order to reduce avoidable hospitalisations and loss of autonomy while improving quality of life, (ii) to disseminate the innovation. The three years of MACVIA-LR activities are reported in this paper.
Collapse
Affiliation(s)
- J Bousquet
- Professor Jean Bousquet, CHRU, 371 Avenue du Doyen Gaston Giraud, 34295 Montpellier Cedex 5, France, Tel +33 611 42 88 47,
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
10
|
Meunier C, Pauvert M, Wergifosse V, Delree M, Wanet M, Bihin B, Daisne J. OC-0077: Comparison of setup accuracy, intrafractionmovement and comfort for two stereotactic masks. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)30521-2] [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: 11/16/2022]
|
11
|
Dubie E, Pouzet G, Bohyn E, Meunier C, Wuyts A, Chateigner Coelsch S, Lesage P, Morvan C, Belle L, Vanzetto G. [Outpatient management of pulmonary embolism diagnosed in emergency services]. Ann Cardiol Angeiol (Paris) 2016; 65:322-325. [PMID: 27693164 DOI: 10.1016/j.ancard.2016.09.013] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 09/02/2016] [Indexed: 10/20/2022]
Abstract
In the emergency department, the management of patients with pulmonary embolism depends on the early mortality risk. Outpatient care is possible in low-risk patients. We present the existing scores and the strategy proposed by the North Alps Emergency Network, which uses the simplified PESI score (Pulmonary Embolism Severity Index) to select those low-risk patients, candidates for early discharge.
Collapse
Affiliation(s)
- E Dubie
- Centre hospitalier métropole Savoie, Medical Emergency Service, BP 31125, 7, square Massalaz, 73011 Chambéry cedex, France.
| | - G Pouzet
- Centre hospitalier métropole Savoie, Medical Emergency Service, BP 31125, 7, square Massalaz, 73011 Chambéry cedex, France
| | - E Bohyn
- Centre hospitalier Annecy-Genevois, 1, avenue de l'Hôpital, 74370 Metz-Tessy, France
| | - C Meunier
- Centre hospitalier de Saint-Jean-de-Maurienne, rue du Dr-Grange, 73300 Saint-Jean-de-Maurienne, France
| | - A Wuyts
- Centre hospitalier d'Albertville-Moutiers, 253, rue Pierre-de-Coubertin, 73200 Albertville, France
| | - S Chateigner Coelsch
- Centre hospitalier de Bourg-Saint-Maurice, 139, rue du Nantet, 73700 Bourg-Saint-Maurice, France
| | - P Lesage
- Centre hospitalier métropole Savoie, Medical Emergency Service, BP 31125, 7, square Massalaz, 73011 Chambéry cedex, France
| | - C Morvan
- Réseau Nord-Alpin des urgences, centre hospitalier Annecy-Genevois, 1, avenue de l'Hôpital, 74370 Metz-Tessy, France
| | - L Belle
- Réseau Nord-Alpin des urgences, centre hospitalier Annecy-Genevois, 1, avenue de l'Hôpital, 74370 Metz-Tessy, France
| | - G Vanzetto
- Centre hospitalier universitaire Grenoble-Alpes, boulevard de la Chantourne, 38700 la Tronche, France
| |
Collapse
|
12
|
Boulet L, Monteremal J, Meunier C, Ducros V, Besson G, Corne C. Mise au point du dosage sanguin des métabolites de la voie du tryptophane en HPLC-MS/MS et perspectives dans le suivi biologique des patients atteints de phénylcétonurie. Arch Pediatr 2016. [DOI: 10.1016/j.arcped.2016.07.021] [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]
|
13
|
Bousquet J, Bourret R, Camuzat T, Augé P, Domy P, Bringer J, Best N, Jonquet O, de la Coussaye JE, Noguès M, Robine JM, Avignon A, Blain H, Combe B, Dray G, Dufour V, Fouletier M, Giraudeau N, Hève D, Jeandel C, Laffont I, Larrey D, Laune D, Laurent C, Mares P, Marion C, Pastor E, Pélissier JY, Radier-Pontal F, Reynes J, Royère E, Ychou M, Bedbrook A, Granier S, Abecassis F, Albert S, Adnet PA, Alomène B, Amouyal M, Arnavielhe S, Asteriou T, Attalin V, Aubas P, Azevedo C, Badin M, Bakhti, Baptista G, Bardy B, Battesti MP, Bénézet O, Bernard PL, Berr C, Berthe J, Bobia X, Bockaert J, Boegner C, Boichot S, Bonnin HY, Boulet P, Bouly S, Boubakri C, Bourdin A, Bourrain JL, Bourrel G, Bouix V, Breuker C, Bruguière V, Burille J, Cade S, Caimmi D, Calmels MV, Camu W, Canovas G, Carre V, Cavalli G, Cayla G, Chiron R, Claret PG, Coignard P, Coroian F, Costa DJ, Costa P, Cottalorda, Coulet B, Coupet AL, Courrouy-Michel MC, Courtet P, Cristol JP, Cros V, Cuisinier F, Daien C, Danko M, Dauenhauer P, Dauzat M, David M, Davy JM, Delignières D, Demoly P, Desplan J, Dhivert-Donnadieu H, Dujols P, Dupeyron A, Dupeyron G, Engberink O, Enjalbert M, Fattal C, Fernandes J, Fesler P, Fraisse P, Froger J, Gabrion P, Galano E, Gellerat-Rogier M, Gellis A, Goucham AY, Gouzi F, Gressard F, Gris JC, Guillot B, Guiraud D, Handweiler V, Hantkié H, Hayot M, Hérisson C, Heroum C, Hoa D, Jacquemin S, Jaber S, Jakovenko D, Jorgensen C, Journot L, Kaczorek M, Kouyoudjian P, Labauge P, Landreau L, Lapierre M, Leblond C, Léglise MS, Lemaitre JM, Le Moing V, Le Quellec A, Leclercq F, Lehmann S, Lognos B, Lussert JM, Makinson A, Mandrick K, Marmelat V, Martin-Gousset P, Matheron A, Mathieu G, Meissonnier M, Mercier G, Messner P, Meunier C, Mondain M, Morales R, Morel J, Morquin D, Mottet D, Nérin P, Nicolas P, Ninot G, Nouvel F, Ortiz JP, Paccard D, Pandraud G, Pasdelou MP, Pasquié JL, Patte K, Perrey S, Pers YM, Picot MC, Pin JP, Pinto N, Porte E, Portejoie F, Pujol JL, Quantin X, Quéré I, Raffort N, Ramdani S, Ribstein J, Rédini-Martinez I, Richard S, Ritchie K, Riso JP, Rivier F, Rolland C, Roubille F, Sablot D, Savy JL, Schifano L, Senesse P, Sicard R, Soua B, Stephan Y, Strubel D, Sultan A, Taddei-Ologeanu, Tallon G, Tanfin M, Tassery H, Tavares I, Torre K, Touchon J, Tribout V, Uziel A, Van de Perre P, Vasquez X, Verdier JM, Vergne-Richard C, Vergotte G, Vian L, Viarouge-Reunier C, Vialla F, Viart F, Villain M, Villiet M, Viollet E, Wojtusciszyn A, Aoustin M, Bourquin C, Mercier J. Introduction. Presse Med 2015; 44 Suppl 1:S1-5. [DOI: 10.1016/j.lpm.2015.07.014] [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: 10/22/2022] Open
|
14
|
Blain H, Léglise MS, Bernard PL, Dupeyron A, Pastor E, Strubel D, Akbaraly T, Abecassis F, Adnet PA, Alomène B, Amouyal M, Bardy B, Battesti MP, Baptista G, Boubakri C, Burille J, Calmels MV, Canovas G, Combe B, Delignières D, Dupeyron G, Engberink O, Gressard F, Heve D, Jakovenko D, Jeandel C, Lapierre M, Laffont I, Laurent C, Lognos B, Lussert JM, Mandrick K, Marmelat V, Martin-Gousset P, Matheron A, Mercier G, Meunier C, Morel J, Ninot G, Nouvel F, Pasdelou MP, Pélissier JY, Perrey S, Picot MC, Pinto N, Raffort N, Ramdani S, Radier-Pontal F, Royère E, Rédini-Martinez I, Robine JM, Roux E, Savy JL, Stephan Y, Tallon G, Torre K, Verdier JM, Vergotte G, Viollet E, Bedbrook A, Granier S, Camuzat T, Bourret R, Jonquet O, de la Coussaye JE, Noguès M, Aoustin M, Domy P, Bringer J, Mercier J, Bousquet J. [Living Lab MACVIA-LR. Equilibrium and the prevention of falls]. Presse Med 2015; 44 Suppl 1:S23-30. [PMID: 26482487 DOI: 10.1016/j.lpm.2015.07.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- H Blain
- CHRU de Montpellier, département de gériatrie, 34090 Montpellier, France; Université de Montpellier, EA 2991 Movement To Health, Euromov, 34090 Montpellier, France.
| | - M-S Léglise
- CHRU de Montpellier, département de gériatrie, 34090 Montpellier, France
| | - P-L Bernard
- Université de Montpellier, EA 2991 Movement To Health, Euromov, 34090 Montpellier, France; Université de Montpellier, UFR-Staps, 34090 Montpellier, France
| | - A Dupeyron
- CHRU de Nîmes, hôpital Carémeau et du Grau du Roi, département de médecine physique et de réadaptation, 30029 Nîmes, France
| | - E Pastor
- Conseil régional de l'Ordre des masseurs kinésithérapeutes, Maison des professions libérales, 34000 Montpellier, France; L'ETAPE, pôle autonomie santé, CCAS de Lattes, 34970 Lattes, France
| | - D Strubel
- CHRU de Nîmes, département de gériatrie, 30029 Nîmes, France
| | - T Akbaraly
- CHRU de Montpellier, département de gériatrie, 34090 Montpellier, France
| | - F Abecassis
- Fédération pharmaceutique méditerranéenne (FEDMED), 34320 Roujan, France
| | - P-A Adnet
- CHRU de Montpellier, département de gériatrie, 34090 Montpellier, France
| | - B Alomène
- CHRU de Montpellier, département de gériatrie, 34090 Montpellier, France
| | - M Amouyal
- Faculté de médecine de Montpellier, département de médecine générale, 34090 Montpellier, France
| | - B Bardy
- Université de Montpellier, EA 2991 Movement To Health, Euromov, 34090 Montpellier, France
| | - M-P Battesti
- Agence régionale de santé, 34000 Montpellier, France
| | - G Baptista
- CHRU de Montpellier, département de gériatrie, 34090 Montpellier, France
| | - C Boubakri
- CHRU de Montpellier, département de gériatrie, 34090 Montpellier, France
| | - J Burille
- Société publique locale d'exploitation de Balaruc-les-Bains, 34540 Ballaruc les Bains, France
| | - M-V Calmels
- Centre communal d'action sociale, 34990 Juvignac, France
| | | | - B Combe
- CHRU de Montpellier, département de rhumatologie, 34090 Montpellier, France
| | - D Delignières
- Université de Montpellier, EA 2991 Movement To Health, Euromov, 34090 Montpellier, France
| | - G Dupeyron
- CHRU de Nîmes, ARAMAV (Association réinsertion aveugles malvoyants), département d'ophtalmologie, 30029 Nîmes, France
| | - O Engberink
- Université Montpellier, EA4556 Epsylon, 34090 Montpellier, France
| | - F Gressard
- L'ETAPE, pôle autonomie santé, CCAS de Lattes, 34970 Lattes, France
| | - D Heve
- Agence régionale de santé, 34000 Montpellier, France
| | - D Jakovenko
- Union régionale des professions de soins infirmiers libéraux du Languedoc-Roussillon, Maison des professions libérales, 34000 Montpellier, France
| | - C Jeandel
- CHRU de Montpellier, département de gériatrie, 34090 Montpellier, France
| | - M Lapierre
- CHRU de Nîmes, hôpital Carémeau et du Grau du Roi, département de médecine physique et de réadaptation, 30029 Nîmes, France
| | - I Laffont
- Université de Montpellier, EA 2991 Movement To Health, Euromov, 34090 Montpellier, France; CHRU de Montpellier, département de médecine physique et de réadaptation, 34090 Montpellier, France
| | - C Laurent
- I2ML, Fondation Institut méditerranéen des métiers de la longévité, 30000 Nîmes, France
| | - B Lognos
- Faculté de médecine de Montpellier, département de médecine générale, 34090 Montpellier, France; Union départementale des professions de soins médecins libéraux, 34000 Montpellier, France
| | - J-M Lussert
- Centre communal d'action sociale (CCAS), 34730 Prades-Le-Lez, France
| | - K Mandrick
- Université de Montpellier, EA 2991 Movement To Health, Euromov, 34090 Montpellier, France
| | - V Marmelat
- Université de Montpellier, EA 2991 Movement To Health, Euromov, 34090 Montpellier, France
| | - P Martin-Gousset
- L'ETAPE, pôle autonomie santé, CCAS de Lattes, 34970 Lattes, France
| | - A Matheron
- Centre communal d'action sociale (CCAS), 34730 Prades-Le-Lez, France
| | - G Mercier
- CHRU de Montpellier, département de l'information médicale, unité médico-économie, 34090 Montpellier, France
| | - C Meunier
- L'ETAPE, pôle autonomie santé, CCAS de Lattes, 34970 Lattes, France; Agglomération de Montpellier, 34970 Lattes, France
| | - J Morel
- CHRU de Montpellier, département de rhumatologie, 34090 Montpellier, France
| | - G Ninot
- Université Montpellier, EA4556 Epsylon, 34090 Montpellier, France
| | - F Nouvel
- CHRU de Nîmes, hôpital Carémeau et du Grau du Roi, département de médecine physique et de réadaptation, 30029 Nîmes, France; Association française des ergothérapeutes français, 34160 Boisseron, France; CHRU de Nîmes, clinique du positionnement et de la mobilité, 30029 Nîmes, France
| | - M-P Pasdelou
- Centre communal d'action sociale, 34990 Juvignac, France
| | - J-Y Pélissier
- CHRU de Nîmes, hôpital Carémeau et du Grau du Roi, département de médecine physique et de réadaptation, 30029 Nîmes, France
| | - S Perrey
- Université de Montpellier, EA 2991 Movement To Health, Euromov, 34090 Montpellier, France
| | - M-C Picot
- CHRU de Montpellier, département de santé publique, 34090 Montpellier, France
| | - N Pinto
- Caisse assurance retraite et santé au travail Languedoc-Roussillon (CARSAT-LR), 34000 Montpellier, France
| | - N Raffort
- Société publique locale d'exploitation de Balaruc-les-Bains, 34540 Ballaruc les Bains, France
| | - S Ramdani
- Université de Montpellier, EA 2991 Movement To Health, Euromov, 34090 Montpellier, France
| | - F Radier-Pontal
- Conseil départemental de l'Ordre des pharmaciens, Maison des professions libérales, 34000 Montpellier, France
| | - E Royère
- Pôle de compétitivité Eurobiomed PAC-Languedoc-Roussillon, 34000 Marseille, France
| | | | - J-M Robine
- Inserm U 988, 75006 Paris, France; Inserm U 710, 34095 Montpellier cedex 05, France; École pratique des Hautes Études (EPHE), 75014 Paris, France
| | - E Roux
- Groupe des infirmières libérales, 30460 Lasalle, France
| | - J-L Savy
- Centre communal d'action sociale, 34990 Juvignac, France
| | - Y Stephan
- Université Montpellier, EA4556 Epsylon, 34090 Montpellier, France
| | - G Tallon
- CHRU de Montpellier, département de gériatrie, 34090 Montpellier, France
| | - K Torre
- Université de Montpellier, EA 2991 Movement To Health, Euromov, 34090 Montpellier, France
| | - J-M Verdier
- Université Montpellier, EA4556 Epsylon, 34090 Montpellier, France; EPHE, Section des sciences de la vie et de la terre, 75014 Paris, France; Université Montpellier, UMR S 710, 34095 Montpellier cedex 05, France; Institut transdisciplinaire d'études du vieillissement, 34095 Montpellier cedex 05, France
| | - G Vergotte
- Université de Montpellier, EA 2991 Movement To Health, Euromov, 34090 Montpellier, France
| | - E Viollet
- CHRU de Nîmes, hôpital Carémeau et du Grau du Roi, département de médecine physique et de réadaptation, 30029 Nîmes, France
| | - A Bedbrook
- BJ2. MACVIA-LR, contre les maladies chroniques pour un vieillissement actif en Languedoc-Roussillon, 34000 Montpellier, France
| | | | - T Camuzat
- Région Languedoc-Roussillon, 34000 Montpellier, France
| | - R Bourret
- CHRU de Montpellier, 34090 Montpellier, France
| | - O Jonquet
- CHRU de Montpellier, Commission médicale d'établissement, 34090 Montpellier, France
| | | | - M Noguès
- Caisse assurance retraite et santé au travail Languedoc-Roussillon (CARSAT-LR), 34000 Montpellier, France
| | - M Aoustin
- Agence régionale de santé, 34000 Montpellier, France
| | - P Domy
- CHRU de Montpellier, 34090 Montpellier, France
| | - J Bringer
- Montpellier-Nîmes, faculté de médecine, 34090 Montpellier, France
| | - J Mercier
- Université Montpellier 1, 34090 Montpellier, France
| | - J Bousquet
- BJ2. MACVIA-LR, contre les maladies chroniques pour un vieillissement actif en Languedoc-Roussillon, 34000 Montpellier, France; CHRU de Montpellier, 34090 Montpellier, France
| |
Collapse
|
15
|
De Latour B, Guihaire J, Kerjouan M, Corre R, Rouze S, Lentz PA, Meunier C, Roisne A, Lena H, Flecher E, Verhoye JP. Place du robot en chirurgie thoracique : expérience rennaise initiale et revue de la littérature. Rev Mal Respir 2015. [DOI: 10.1016/j.rmr.2015.04.010] [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: 12/01/2022]
|
16
|
Blain H, Abecassis F, Adnet P, Alomène B, Amouyal M, Bardy B, Battesti M, Baptista G, Bernard P, Berthe J, Boubakri C, Burille J, Calmels M, Combe B, Delignières D, Dupeyron A, Dupeyron G, Engberink O, Gressard F, Hève D, Jakovenko D, Jeandel C, Lapierre M, Léglise M, Laffont I, Laurent C, Lognos B, Lussert J, Mandrick K, Marmelat V, Martin-Gousset P, Matheron A, Mercier G, Meunier C, Morel J, Ninot G, Nouvel F, Ortiz J, Pasdelou M, Pastor E, Pélissier J, Perrey S, Picot M, Pinto N, Ramdani S, Radier-Pontal F, Royère E, Rédini-Martinez I, Robine J, Roux E, Savy J, Stephan Y, Strubel D, Tallon G, Torre K, Verdier J, Vergotte G, Viollet E, Albinet C, Ankri J, Annweiler C, Benetos A, Beauchet O, Berrut G, Dargent P, Decker L, Hanon O, Joël M, Nourashemi F, Puisieux F, Rolland Y, Ruault G, Vellas B, Vuillemin A, Becker C, Holand N, Michel J, Strandberg T, Bedbrook A, Granier S, Camuzat T, Bourret R, Best N, Jonquet O, de la Coussaye J, Mercier J, Noguès M, Aoustin M, Domy P, Bringer J, Augé P, Bourquin C, Bousquet J. Living Lab Falls-MACVIA-LR: The falls prevention initiative of the European Innovation Partnership on Active and Healthy Ageing (EIP on AHA) in Languedoc-Roussillon. Eur Geriatr Med 2014. [DOI: 10.1016/j.eurger.2014.07.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
17
|
Jouneau S, Kerjouan M, Briens E, Lenormand JP, Meunier C, Letheulle J, Chiforeanu D, Lainé-Caroff C, Desrues B, Delaval P. La protéinose alvéolaire pulmonaire. Rev Mal Respir 2014; 31:975-91. [DOI: 10.1016/j.rmr.2014.08.009] [Citation(s) in RCA: 11] [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] [Received: 04/21/2014] [Accepted: 08/20/2014] [Indexed: 01/30/2023]
|
18
|
Bousquet J, Bourquin C, Augé P, Domy P, Bringer J, Aoustin M, Camuzat T, Bourret R, Best N, Jonquet O, de la Coussaye J, Robine J, Avignon A, Blain H, Giraudeau N, Hève D, Jeandel C, Laffont I, Larrey D, Laurent C, Noguès M, Pélissier J, Radier-Pontal F, Royère E, Bedbrook A, Granier S, Abecassis F, Albert S, Adnet P, Alomène B, Amouyal M, Arnavieilhe S, Attalin V, Aubas P, Badin M, Baptista G, Bardy B, Battesti M, Bénézet O, Bernard P, Berr C, Berthe J, Bockaert J, Boubakri C, Bourdin A, Bourrain J, Bourrel G, Bouix V, Burille J, Cade S, Caimmi D, Calmels M, Camu W, Cavalli G, Cayla G, Chiron R, Combe B, Costa D, Costa P, Courrouy-Michel M, Courtet P, Cristol J, Cuisinier F, Daien C, Danko M, Dauenhauer P, Dauzat M, David M, Davy J, Delignières D, Demoly P, Dhivert-Donnadieu H, Dray G, Dujols P, Dupeyron A, Dupeyron G, Engberink O, Fesler P, Gellerat-Rogier M, Gouzi F, Gressard F, Hoa D, Jacquemin S, Gris J, Guillot B, Handweiler V, Hayot M, Jaber S, Jakovenko D, Jorgensen C, Journot L, Kaczorek M, Lapierre M, Laune D, Léglise M, Le Quellec A, Leclerc F, Lehmann S, Lognos B, Lussert J, Mandrick K, Marmelat V, Martin-Gousset P, Matheron A, Mathieu G, Mercier G, Messner P, Meunier C, Mondain M, Morel J, Morquin D, Nérin P, Ninot G, Nouvel F, Ortiz J, Pandraud G, Pasdelou M, Pasquié J, Pastor E, Perrey S, Pers Y, Picot M, Pin J, Pinto N, Portejoie F, Pujol J, Quantin X, Quéré I, Raffort N, Ramdani S, Reynes J, Ribstein J, Rédini-Martinez I, Richard S, Ritchie K, Rolland C, Roubille F, Roux E, Salvat A, Savy J, Stephan Y, Strubel D, Sultan A, Tallon G, Tassery H, Torre K, Uziel A, Van de Perre P, Vasquez X, Verdier J, Vergotte G, Vian L, Viarouge-Reunier C, Vialla F, Viart F, Villain M, Viollet E, Ankri J, Berrut G, Crooks G, Joël M, Michel J, Samolinski B, Strandberg T, Vellas B, Mercier J. MACVIA-LR, Reference site of the European Innovation Partnership on Active and Healthy Ageing (EIP on AHA) in Languedoc Roussillon. Eur Geriatr Med 2014. [DOI: 10.1016/j.eurger.2014.07.013] [Citation(s) in RCA: 21] [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: 10/24/2022]
|
19
|
De Latour B, Corre R, Guihaire J, Kerjouan M, Rouze S, Meunier C, Sellin M, Lena H, Verhoye JP. L’expérience rennaise des lobectomies pulmonaires par vidéothoracoscopie (VATS) sans écartement des côtes : à propos de 46 patients. Rev Mal Respir 2014. [DOI: 10.1016/j.rmr.2014.04.091] [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]
|
20
|
Estèves-Ferreira C, Eynard E, Meunier C, Seguret F. Impact des classifications tarifaires : estimation des effets tarif, case-mix et niveau de sévérité. Rev Epidemiol Sante Publique 2014. [DOI: 10.1016/j.respe.2014.01.047] [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] Open
|
21
|
Manuel M, Zytnicki D, Meunier C. The dendritic location of the L-type current and its deactivation by the somatic AHP current both contribute to firing bistability in motoneurons. Front Comput Neurosci 2014; 8:4. [PMID: 24478687 PMCID: PMC3902208 DOI: 10.3389/fncom.2014.00004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [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: 11/12/2013] [Accepted: 01/08/2014] [Indexed: 11/19/2022] Open
Abstract
Spinal motoneurons may display a variety of firing patterns including bistability between repetitive firing and quiescence and, more rarely, bistability between two firing states of different frequencies. It was suggested in the past that firing bistability required that the persistent L-type calcium current be segregated in distal dendrites, far away from the spike generating currents. However, this is not supported by more recent data. Using a two compartment model of motoneuron, we show that the different firing patterns may also result from the competition between the more proximal dendritic component of the dendritic L-type conductance and the calcium sensitive potassium conductance responsible for afterhypolarization (AHP). Further emphasizing this point, firing bistability may be also achieved when the L-type current is put in the somatic compartment. However, this requires that the calcium-sensitive potassium conductance be triggered solely by the high threshold calcium currents activated during spikes and not by calcium influx through the L-type current. This prediction was validated by dynamic clamp experiments in vivo in lumbar motoneurons of deeply anesthetized cats in which an artificial L-type current was added at the soma. Altogether, our results suggest that the dynamical interaction between the L-type and afterhyperpolarization currents is as fundamental as the segregation of the calcium L-type current in dendrites for controlling the discharge of motoneurons.
Collapse
Affiliation(s)
| | | | - Claude Meunier
- Laboratoire de Neurophysique et Physiologie, CNRS UMR 8119, Institut des Neurosciences et de la Cognition, Université Paris DescartesParis, France
| |
Collapse
|
22
|
Rouzé S, Flécher E, de Latour B, Meunier C, Sellin M, Lena H, Verhoye JP. [Tracheal adenoid cystic carcinoma treated by complete carinal reconstruction with the help of an ECMO: about a case]. Rev Pneumol Clin 2013; 69:144-148. [PMID: 23597633 DOI: 10.1016/j.pneumo.2013.02.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Revised: 02/26/2013] [Accepted: 02/28/2013] [Indexed: 06/02/2023]
Abstract
Primitive tumors of the trachea are rare, accounting for 0.1% of the airway tumors. Cystic adenoid carcinoma (or cylindroma) represents the second most frequent type of tracheal cancers. Histologically speaking, this tumor type is divided in three patterns: cribriform, tubular and solid; it presents a slow growth, perineural invasion and potential local recurrence and metastasis. We presented herein the case of a 56-year-old female suffering from a cystic adenoid carcinoma of the low trachea. She has been treated by carinal resection with negative airway margin and complete reconstruction, with the help of an extra corporeal membrane oxygenation (ECMO).
Collapse
Affiliation(s)
- S Rouzé
- Département de chirurgie thoracique et cardiovasculaire, CHU Pontchaillou, 2, rue Henri-le-Guilloux, 35000 Rennes, France.
| | | | | | | | | | | | | |
Collapse
|
23
|
Bruandet A, Duco L, Meunier C, Girard A, Lambert D, Tavernier B, Villers A, Theis D. Motifs et volumes des déprogrammations au sein des blocs opératoires et salles interventionnelles au CHRU de Lille. Rev Epidemiol Sante Publique 2013. [DOI: 10.1016/j.respe.2013.01.033] [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: 11/24/2022] Open
|
24
|
Jouneau S, Kerjouan M, Caulet-Maugendre S, Guillot S, Meunier C, Desrues B, Delaval P. Clarithromycin Stops Lung Function Decline in Airway-Centered Interstitial Fibrosis. Respiration 2013; 85:156-9. [DOI: 10.1159/000341982] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2012] [Accepted: 06/21/2012] [Indexed: 11/19/2022] Open
|
25
|
Meunier C, Jennings D, Hunter C, Sherer T. Fox Trial Finder: An Innovative Web-Based Trial Matching Tool To Facilitate Clinical Trial Recruitment (P02.241). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p02.241] [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: 11/15/2022] Open
|
26
|
Izquierdo Manrique V, Ramos Acosta CL, Garcia Sanchez R, Gonzalez Canino C, Martinez Romero M, Cornago Delgado L, Gonzalez Aleman L, Santos Ruiz AC, Martin Guillada MR, Rodriguez Benitez A, Garcia Guzman CR, Hernandez Hernandez J, Palumbo A, Meunier C, Callender G, Matey S, Alvarez A, Legidos V, Lara E, Cabanes I, Requena A, Boivin J, Bunting L, Verhaak CM, Rozee V, Gallo C, Ruiz Jorro A, Remohi Gimenez J, Pellicer Martinez A, Kamisawa E, Hirabayashi N, Wakasa S, Inoue K, Yusa H, Sahuquillo S, Meseguer M, Martinez A, Fernandez V, Jimenez L, Borgonoz A, Pellicer A, Alama P, Sahin S, Beji NK, Bal MD, Yilmaz SD, Beji NK, Caliskan S, Urman B, Perl L, Zwahlen E, Gourounti K, Anagnostopoulos F, Stefanidis K, Lone S, Vaslamatzis G, Lykeridou K. PARAMEDICAL - NURSING. Hum Reprod 2012. [DOI: 10.1093/humrep/27.s2.84] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
27
|
Rinaldi L, Selman H, Floccari A, Ruggeri M, Pacchiarotti A, Kamisawa E, Takeshi Kawaguchi T, Meunier C, Callender G. POSTER VIEWING SESSION - PARAMEDICAL - NURSING. Hum Reprod 2011. [DOI: 10.1093/humrep/26.s1.86] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
28
|
Ramanoudjame M, Guillon P, Dauzac C, Meunier C, Carcopino JM. CT evaluation of torsional malalignment after intertrochanteric fracture fixation. Orthop Traumatol Surg Res 2010; 96:844-8. [PMID: 20822963 DOI: 10.1016/j.otsr.2010.05.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2009] [Revised: 04/30/2010] [Accepted: 05/06/2010] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Trochanteric fractures are commonly stabilized either by intramedullary nailing or plate and screw fixation after reduction on the orthopaedic surgical table under radiological guidance. HYPOTHESIS Closed trochanteric fracture anatomic reduction is difficult in the transversal plane. OBJECTIVES The objective of this prospective study was to assess the rotational malalignment induced after reduction and osteosynthesis of trochanteric fractures. PATIENTS AND METHODS Prospective study including 40 patients (mean age, 78 years; range, 51-90 years) operated for a trochanteric fracture between January 2007 and September 2008. Fourteen fractures were treated using DHS™ (Synthes™) plate and screw fixation and 26 with intramedullary nailing (trochanteric nail™, Stryker™). All these patients underwent postoperative CT of the pelvis during their hospitalization with measurement of anteversion of the operated and healthy femoral necks at the posterior condyles. The evaluation criterion was whether or not there was malalignment greater than 15° on the operated side compared to the healthy side. RESULTS The mean anteversion was 14.2° for the healthy side and 23° for the operated side. The mean rotational malalignment was 15.3°. Forty percent of the rotational malalignments were greater than 15°, with a majority of cases showing excess internal rotation (35%) of the distal fragment. CONCLUSION AND DISCUSSION The rate of internal rotational malalignment of the distal fragment greater than 15° was high (40% of this series). This should encourage surgeons to reduce the excess internal rotation that tends to be attributed to the distal fragment during preoperative reduction of these fractures. LEVEL OF EVIDENCE Level III. Prospective diagnostic study with no control group.
Collapse
Affiliation(s)
- M Ramanoudjame
- Orthopaedic Surgery and Traumatology Department, Le Raincy Montfermeil inter city Hospital group, 10, rue du Général-Leclerc, 93370 Montfermeil, France.
| | | | | | | | | |
Collapse
|
29
|
Séguret F, Meunier C. Prises en charge des patientes hospitalisées pour chirurgie de cancer du sein en France en 2007, à partir des bases nationales PMSI chaînées. Rev Epidemiol Sante Publique 2010. [DOI: 10.1016/j.respe.2010.06.130] [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] Open
|
30
|
Thomas L, Brouste Y, Najioullah F, Hochedez P, Hatchuel Y, Moravie V, Kaidomar S, King J, Besnier F, Abel S, Carmès S, Schmitt S, Brihier P, Meunier C, Cardoso T, Rosine J, Quenel P, Césaire R, Cabié A. Prospective and descriptive study of adult dengue cases in an emergency department, in Martinique. Med Mal Infect 2010; 40:480-9. [DOI: 10.1016/j.medmal.2009.10.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2009] [Revised: 04/30/2009] [Accepted: 10/27/2009] [Indexed: 11/29/2022]
|
31
|
Applegarth J, Dwyer T, Moxham L, Doodeman IMM, Renckens CNM, Meunier C, Callender G, Eluga M, Tamale sali E, Desmet B, Albano C, Devroey P, Ombelet W, Platteau P. Session 14: Paramedical Nursing. Hum Reprod 2010. [DOI: 10.1093/humrep/de.25.s1.14] [Citation(s) in RCA: 1] [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: 11/14/2022] Open
|
32
|
Meunier C, Cai J, Fortin A, Kwan T, Marquis J, Turbide C, Van Der Kraak L, Jothy S, Beauchemin N, Gros P. Characterization of a major colon cancer susceptibility locus (Ccs3) on mouse chromosome 3. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.1548] [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
|
33
|
Séguret F, Meunier C. Descriptif des prises en charge des patientes hospitalisées. Rev Epidemiol Sante Publique 2010. [DOI: 10.1016/j.respe.2010.02.097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|
34
|
Séguret F, Meunier C, Gaubert Y. Activité de soins de suite et réadaptation dans les établissements publics, PSPH et privés en 2008. Rev Epidemiol Sante Publique 2010. [DOI: 10.1016/j.respe.2010.02.036] [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] Open
|
35
|
Abstract
Depression is one of the major problems associated with multiple sclerosis (MS). Several physical and psychological factors tend to interact and make it difficult to pinpoint the predictors of the depression. It seemed particularly important to examine how anxiety and illness evolution (characterized by the functional status) influence the appearance of depression symptoms. Thus, the aim of this article was to clarify the relationship between depression and the factors associated with it. One hundred and fifteen participants living at home recruited through various associations and MS clinics answered socio demographic, medical and psychological questions and questionnaires (depression, anxiety, coping, social support, locus of control, alexithymia, self-esteem). Results show that functional status (EDSS), trait anxiety, alexithymia and satisfaction with social support system are the predicting factors of depression. Trait anxiety and functional status are two predictors that independently and simultaneously lead to the appearance of depression symptoms, with trait anxiety playing a predominant role. Alexithymia and social support indirectly influence the appearance of these symptoms.
Collapse
Affiliation(s)
- M-C Gay
- Psychology Department, University of Paris West Nanterre la Défense, Nanterre cedex, France.
| | | | | | | |
Collapse
|
36
|
Meunier C, Cai J, Fortin A, Kwan T, Marquis JF, Turbide C, Van Der Kraak L, Jothy S, Beauchemin N, Gros P. Characterization of a major colon cancer susceptibility locus (Ccs3) on mouse chromosome 3. Oncogene 2009; 29:647-61. [PMID: 19915610 DOI: 10.1038/onc.2009.369] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Treatment of mice with the carcinogen azoxymethane (AOM) induces a number of lesions in the colon, including hyperplastic lesions, as well adenomas and carcinomas in situ. Inbred strains of mice show different responses to AOM-induced carcinogenesis. A/J mice are highly susceptible and develop a greater number of hyperplastic lesions and tumors (15-70 tumors per mouse) than resistant C57BL/6J mice (0-6 tumors per mouse). Susceptibility to AOM-induced tumors segregates as a co-dominant trait in (A x B6)F1 hybrids. Using a set of 23 AcB and BcA recombinant congenic mouse strains derived from A/J (susceptible) and B6 (resistant) parents, we observed that the number of hyperplastic lesions and tumors induced by AOM was under different genetic controls in AcB/BcA strains. The multiplicity of AOM-induced tumors is controlled by a major locus that we have mapped on the distal portion of chromosome 3, to which we have given the temporary designation colon cancer susceptibility locus 3 (Ccs3). B6 and A/J alleles at Ccs3 are associated with resistance and susceptibility, respectively. Haplotype analysis in key informative AcB/BcA strains restricts the size of the Ccs3 locus to a 14 Mb segment that contains 94 annotated genes. The expression level of all these genes in normal colon has been established by transcript profiling with microarrays, and has led to the identification of a subset of positional candidates that are expressed at high levels in this tissue. The 4q and 1p human chromosomal segments sharing syntenic homology with the mouse Ccs3 segment are known to be associated with inflammatory bowel diseases and colorectal tumors in humans, suggesting that the study of the mouse Ccs3 locus may help further the pathogenesis of these human conditions.
Collapse
Affiliation(s)
- C Meunier
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
| | | | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Mehdaoui H, Allart L, Valentino R, Elzein I, Meunier C, Sarrazin B, Vilhelm C, Zitouni D, Ravaux P. Severe brain trauma management analysis using a high-rate recording tool: better definition allows better analysis of practice. Crit Care 2009. [PMCID: PMC4083975 DOI: 10.1186/cc7253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
38
|
Abstract
Dendrites may exhibit many types of electrical and morphological heterogeneities at the scale of a few micrometers. Models of neurons, even so-called detailed models, rarely consider such heterogeneities. Small-scale fluctuations in the membrane conductances and the diameter of dendrites are generally disregarded and spines merely incorporated into the dendritic shaft. Using the two-scales method known as homogenization, we establish explicit expressions for the small-scale fluctuations of the membrane voltage, and we derive the cable equation satisfied by the voltage when these fluctuations are averaged out. This allows us to rigorously establish under what conditions a heterogeneous dendrite can be approximated by a homogeneous cable. We consider different distributions of synapses, orderly or random, on a passive dendrite, and we investigate when replacing excitatory and inhibitory synaptic conductances by their local averages leads to a small error in the voltage. This indicates in which regimes the approximations made in compartmental models are justified. We extend these results to active membranes endowed with voltage-dependent conductances or NMDA receptors. Then we examine under which conditions a spiny dendrite behaves as a smooth dendrite. We discover a new regime where this holds true, namely, when the conductance of the spine neck is small compared to the conductance of the synapses impinging on the spine head. Spines can then be taken into account by an effective excitatory current, the capacitance of the dendrite remaining unchanged. In this regime, the synaptic current transmitted from a spine to the dendritic shaft is strongly attenuated by the weak coupling conductance, but the total current they deliver can be quite substantial. These results suggest that pedunculated spines and stubby spines might play complementary roles in synaptic integration. Finally, we analyze how varicosities affect voltage diffusion in dendrites and discuss their impact on the spatiotemporal integration of synaptic input.
Collapse
Affiliation(s)
- Claude Meunier
- Laboratoire de Neurophysique et Physiologie (UMR CNRS 8119), Université Paris Descartes, 75006 Paris, France
| | - Boris Lamotte d'Incamps
- Laboratoire de Neurophysique et Physiologie (UMR CNRS 8119), Université Paris Descartes, 75006 Paris, France
| |
Collapse
|
39
|
Mehdaoui H, Valentino R, Allart L, Zitouni D, Sarrazin B, Meunier C, Elzein I, Tissier S, Ravaux P. Brain trauma care targets analysis using a high-rate recording and computing network. Crit Care 2008. [PMCID: PMC4088492 DOI: 10.1186/cc6342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
|
40
|
|
41
|
Manuel M, Meunier C, Donnet M, Zytnicki D. The afterhyperpolarization conductance exerts the same control over the gain and variability of motoneurone firing in anaesthetized cats. J Physiol 2006; 576:873-86. [PMID: 16931549 PMCID: PMC1890407 DOI: 10.1113/jphysiol.2006.117002] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [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: 12/25/2022] Open
Abstract
Does the afterhyperpolarization current control the gain and discharge variability of motoneurones according to the same law? We investigated this issue in lumbar motoneurones of anaesthetized cats. Using dynamic clamp, we measured the conductance, time constant and driving force of the AHP current in a sample of motoneurones and studied how the gain was correlated to these quantities. To study the action of the AHP on the discharge variability and to compare it to its action on the gain, we injected an artificial AHP-like current in motoneurones. This increased the natural AHP. In three motoneurones, we abolished most of the natural AHP with the calcium chelator BAPTA to investigate the condition where the discharge was essentially controlled by the artificial AHP. Our results demonstrate that both the gain and the coefficient of variation of the firing rate are inversely proportional to the magnitude and to the time constant of the artificial AHP conductance. This indicates that the AHP exerts the same control over the gain and the variability. This mechanism ensures that the variability of the discharge is modulated with the gain. This guarantees a great regularity of the discharge when the motoneurone is in a low excitability state and hence good control of the force produced.
Collapse
Affiliation(s)
- Marin Manuel
- Laboratoire de Neurophysique et Physiologie, UMR 8119, CNRS and Université René Descartes, 45 rue des Saints-Pères, 75270 Paris Cedex 06, France
| | | | | | | |
Collapse
|
42
|
Cornillet A, Camus C, Nimubona S, Gandemer V, Tattevin P, Belleguic C, Chevrier S, Meunier C, Lebert C, Aupée M, Caulet-Maugendre S, Faucheux M, Lelong B, Leray E, Guiguen C, Gangneux JP. Comparison of epidemiological, clinical, and biological features of invasive aspergillosis in neutropenic and nonneutropenic patients: a 6-year survey. Clin Infect Dis 2006; 43:577-84. [PMID: 16886149 DOI: 10.1086/505870] [Citation(s) in RCA: 234] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2006] [Accepted: 05/10/2006] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND Invasive aspergillosis is an opportunistic infection that occurs mainly among patients with prolonged neutropenia. Few data are available on invasive aspergillosis in nonneutropenic patients. METHODS The aim of this survey was to compare neutropenic and nonneutropenic patients who had received a diagnosis of invasive aspergillosis at our institution during a 6-year period. RESULTS Among the 88 cases of invasive aspergillosis analyzed here, 12 were histologically proven, 52 were probable, and 24 were possible. Forty-seven percent of cases were diagnosed in the intensive care unit, and 40% were diagnosed in hematology units. Neutropenia was a risk factor for 52 patients (59%), most of whom had hematological or solid malignancies. Among the 36 nonneutropenic patients (41%), the main underlying conditions were steroid-treated chronic obstructive pulmonary disease, asthma, rheumatoid arthritis, giant-cell arteritis, and microvascular disorders; 10 patients were recipients of solid-organ transplants, and 1 patient was seropositive for human immunodeficiency virus. The distribution of proven and probable invasive aspergillosis was similar for neutropenic and nonneutropenic patients. The mortality rate was 71.5% overall and was significantly higher among nonneutropenic patients than among neutropenic patients (89% vs. 60%; P<.05). Compared with neutropenic patients, nonneutropenic patients were significantly less likely to have symptoms of invasive aspergillosis and more likely to have frequent intercurrent pneumonia due to another microorganism. The sensitivity of mycological examination of bronchoalveolar lavage fluid specimens was higher for nonneutropenic patients than for neutropenic patients (85% vs. 58%; P<.05), whereas the sensitivity of antigenemia was the same for the 2 populations (65% vs. 64%). Findings on thoracic computed tomographs were similar, except that segmental areas of consolidation occurred more frequently among neutropenic patients. CONCLUSION This survey at a whole institution underlines the high number of cases of invasive aspergillosis among nonneutropenic patients, with an overall mortality rate that was significantly higher than that for neutropenic patients.
Collapse
Affiliation(s)
- A Cornillet
- Laboratoire de Parasitologie-Mycologie,Hôpital Pontchaillou, Rennes, France
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
43
|
|
44
|
Manuel M, Meunier C, Donnet M, Zytnicki D. How much afterhyperpolarization conductance is recruited by an action potential? A dynamic-clamp study in cat lumbar motoneurons. J Neurosci 2006; 25:8917-23. [PMID: 16192382 PMCID: PMC6725587 DOI: 10.1523/jneurosci.2154-05.2005] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [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: 11/21/2022] Open
Abstract
We accurately measured the conductance responsible for the afterhyperpolarization (medium AHP) that follows a single spike in spinal motoneurons of anesthetized cats. This was done by using the dynamic-clamp method. We injected an artificial current in the neurons that increased the AHP amplitude, and we made use of the fact that the intensity of the natural AHP current at the trough of the voltage trajectory was related linearly to the AHP amplitude. We determined at the same time the conductance and the reversal potential of the AHP current. This new method was validated by a simple theoretical model incorporating AHP and hyperpolarization-activated (Ih) currents and could be applied when the decay time constant of the AHP conductance was at least five times shorter than the estimated Ih activation time. This condition was fulfilled in 33 of 44 motoneurons. The AHP conductance varied from 0.3 to 1.4 microS in both slow- and fast-type motoneurons, which was approximately the same range as the input conductance of the entire population. However, AHP and input conductances were not correlated. The larger AHP in slow-type motoneurons was mainly attributable to their smaller input conductance compared with fast motoneurons. The likeness of the AHP conductance in both types of motoneurons is in sharp contrast to differences in AHP decay time and explains why slow- and fast-type motoneurons have similar gain.
Collapse
Affiliation(s)
- Marin Manuel
- Neurophysique et Physiologie du Système Moteur, Unité Mixte de Recherche 8119, Centre National de la Recherche Scientifique, Université René Descartes, 75270 Paris Cedex 06, France
| | | | | | | |
Collapse
|
45
|
Hurtrez-Boussès S, Pendino A, Barnabé C, Durand P, Rondelaud D, Durand C, Meunier C, Hurtrez JE, Renaud F. Comparison between shell morphology and genetic diversity in two sympatric lymnaeid snails, vectors of fasciolosis. CAN J ZOOL 2005. [DOI: 10.1139/z05-150] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Species determination of freshwater snails is particularly important in the case of disease vectors. In central France, for example, it has been shown that Galba truncatula (Müller, 1774) and Omphiscola glabra (Müller, 1774), which can be found in sympatry, are intermediate hosts for fasciolosis. Although these two species are distinguishable based on their shell morphology, some snails present in sympatric zones possess shell characteristics that are common to both species, suggesting possible gene flow. To test this hypothesis, we carried out multilocus enzyme electrophoreses on individuals sampled in one zone of sympatry. Our results clearly show that all snails with shell characteristics common to both species are O. glabra. We also note an absence of hybridization between G. truncatula and O. glabra in the study area. Remarkably, we observe a total monomorphism at the six studied loci among individuals of G. truncatula. Similarly, we find a total lack of heterozygotes in the O. glabra sample (with classic or intermediate shell characteristics). These results suggest a predominance of selfing in the reproductive mode of both species. Our results suggest that conchological characteristics can provide information about the taxonomic position of lymnaeids. However, they are insufficient to confidently differentiate species.
Collapse
|
46
|
Abstract
Electrophysiological experiments and modeling studies have shown that after hyperpolarization regulates the discharge of lumbar motoneurons in anesthetized cats and is an important determinant of their firing properties. However, it is still unclear how firing properties depend on slow after hyperpolarization, input conductance, and the fast currents responsible for spike generation. We study a single-compartment integrate-andfire model with a slow potassium conductance that exponentially decays between spikes. We show that this model is analytically solvable, and we investigate how passive and active membrane properties control the discharge. We show that the model exhibits three distinct firing ranges (primary, secondary, and high frequency), and we explain the origin of these three ranges. Explicit expressions are established for the gain of the steady-state current-frequency (I− f) curve in the primary range and for the gain of the I− f curve for the first interspike interval. They show how the gain is controlled by the maximal conductance and the kinetic parameters of the after hyperpolarization conductance. The gain also depends on the spike voltage threshold, and we compute how it is decreased by threshold accommodation (i.e., the increase of the threshold with the injected current). In contrast, the gain is not very sensitive to the input conductance. This implies that tonic synaptic activity shifts the current-frequency curve in its primary range, in agreement with experiments. Taking into account the absolute refractory period associated with spikes somewhat reduces the gain in the primary range. More importantly, it accounts for the approximately linear and steep secondary range observed in many motoneurons. In the nonphysiological high-frequency range, the behavior of the I− f curve is determined by the fast voltage-dependent currents, via the amplitude of the fast repolarization afterspike, the duration of the refractory period, and voltage threshold accommodation, if present.
Collapse
Affiliation(s)
- Claude Meunier
- Laboratoire de Neurophysique et Physiologie, UMR CNRS 8119, Universtié René Descartes, 75270 Paris cedex, France.
| | | |
Collapse
|
47
|
Abstract
INTRODUCTION Interpreting measurements of carbon monoxide can be problematic. STATE OF THE ART The transfer factor (TLCO) is usually calculated by multiplying the decrease in alveolar CO concentration between the beginning and the end of a 10 second breath hold (KCO) by the alveolar volume (VA). Thus a reduced TLCO may occur due to either a low KCO, a reduced VA, or a combination of both. PERSPECTIVES A careful examination of KCO and VA will usually suggest a specific explanation for a reduction in TLCO. In restrictive lung diseases from extrapulmonary origin, TLCO is low but TLCO/VA [[/INF 120% of the reference values. In interstitial lung disease, the value of TLCO/VA depends on whether the loss of lung units is diffuse or not, and probably also on the status of the microcirculation. In airflow obstruction, a low VA is caused by uneven distribution of inspired He/CO mixture within the breath-hold time. CONCLUSIONS The transfer factor for carbon monoxide is best interpreted in terms of its components, alveolar volume and carbon monoxide transfer coefficient.
Collapse
Affiliation(s)
- S Guillot
- Service d'Explorations Fonctionnelles, CHU de Rennes, Rennes, France
| | | | | | | |
Collapse
|
48
|
Meunier C, Hurtrez-Bousses S, Durand P, Rondelaud D, Renaud F. Small effective population sizes in a widespread selfing species, Lymnaea truncatula (Gastropoda: Pulmonata). Mol Ecol 2004; 13:2535-43. [PMID: 15315668 DOI: 10.1111/j.1365-294x.2004.02242.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [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: 11/29/2022]
Abstract
We present here a spatial and temporal population genetic survey of a common freshwater snail, also a predominantly selfing species, Lymnaea truncatula. The rate of genetic diversity loss was quantified by estimating the effective size (Ne) of the snail populations, using two different methods. A temporal survey allowed estimation of a variance effective size of the populations, and a spatial survey allowed the estimation of an inbreeding effective size, from two-locus identity disequilibria estimates. Both methods were consistent and provided low Ne values. Drift due to (i) high amounts of selfing and (ii) fluctuations in population sizes because of temporary habitats, and also selection coupled to genome-wide linkage disequilibria, could explain such reductions in Ne. The loss of genetic diversity appears to be counterbalanced only very partially by low apparent rates of gene flow.
Collapse
Affiliation(s)
- C Meunier
- Centre d'Etude sur le Polymorphisme des Micro-organismes (UMR CNRS-IRD 9926), Institut de Recherche pour le Développement, 911 Avenue Agropolis, BP 64501, F-34394 Montpellier Cedex 1, France.
| | | | | | | | | |
Collapse
|
49
|
Affiliation(s)
- Nicolas Brunel
- Neurophysique et Physiologie du Système Moteur, CNRS UMR8119, Université Paris René Descartes, 45 rue des Saints Pères 75270, Paris 06 France
| | | | | | | |
Collapse
|
50
|
Brizzi L, Meunier C, Zytnicki D, Donnet M, Hansel D, Lamotte D'Incamps B, Van Vreeswijk C. How shunting inhibition affects the discharge of lumbar motoneurones: a dynamic clamp study in anaesthetized cats. J Physiol 2004; 558:671-83. [PMID: 15169842 PMCID: PMC1664972 DOI: 10.1113/jphysiol.2003.059964] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [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: 11/08/2022] Open
Abstract
In the present work, dynamic clamp was used to inject a current that mimicked tonic synaptic activity in the soma of cat lumbar motoneurones with a microelectrode. The reversal potential of this current could be set at the resting potential so as to prevent membrane depolarization or hyperpolarization. The only effect of the dynamic clamp was then to elicit a constant and calibrated increase of the motoneurone input conductance. The effect of the resulting shunt was investigated on repetitive discharges elicited by current pulses. Shunting inhibition reduced very substantially the firing frequency in the primary range without changing the slope of the current-frequency curves. The shift of the I-f curve was proportional to the conductance increase imposed by the dynamic clamp and depended on an intrinsic property of the motoneurone that we called the shunt potential. The shunt potential ranged between 11 and 37 mV above the resting potential, indicating that the sensitivity of motoneurones to shunting inhibition was quite variable. The shunt potential was always near or above the action potential voltage threshold. A theoretical model allowed us to interpret these experimental results. The shunt potential was shown to be a weighted time average of membrane voltage. The weighting factor is the phase response function of the neurone that peaks at the end of the interspike interval. The shunt potential indicates whether mixed synaptic inputs have an excitatory or inhibitory effect on the ongoing discharge of the motoneurone.
Collapse
Affiliation(s)
- L Brizzi
- Neurophysique et Physiologie du Système Moteur, UMR 8119 CNRS, Université René Descartes, 45 rue des Saints Pères, 75270 Paris Cedex 06, France
| | | | | | | | | | | | | |
Collapse
|