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Radojevic J, Guirgis L, Cohen S, Fournier E, Van Aerschot I, Hascoët S, Di Marco P. Usefulness and feasibility of exercise stress echocardiography in patients with congenital heart diseases. Archives of Cardiovascular Diseases Supplements 2023. [DOI: 10.1016/j.acvdsp.2022.10.281] [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: 12/31/2022]
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Valdeolmillos E, Boucly A, Le Pavec J, Savale L, Sitbon O, Petit J, Guirgis L, Batteux C, Cohen S, Fournier E, Humbert M, Fadel E, Belli E, Hascoët S. Prognostic value of hemodynamic parameters in pulmonary arterial hypertension associated to congenital heart diseases. Archives of Cardiovascular Diseases Supplements 2022. [DOI: 10.1016/j.acvdsp.2022.07.017] [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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Quiles RV, Tredez G, Sternberg D, Romero N, Evangelista T, Laforêt P, Cintas P, Sole G, Sacconi S, Bendahhou S, Arzel-Hezode M, Fournier E, Fontaine B, Stojkovic T, Vicart S. CHANNELOPATHIES AND RELATED DISORDERS. Neuromuscul Disord 2021. [DOI: 10.1016/j.nmd.2021.07.245] [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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Fournier E, Mercier-Bonin M, Denis S, Uriot O, Roussel C, Leveque M, Alric M, Van De Wiele T, Blanquet-Diot S, Etienne-Mesmin L. Deciphering the influence of physicochemical and microbial parameters of the human digestive tract on orally-ingested microplastics using in vitro gut models. Toxicol Lett 2021. [DOI: 10.1016/s0378-4274(21)00504-x] [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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Fournier E, Etienne-Mesmin L, Denis S, Verdier C, Chalancon S, Durif C, Uriot O, Mercier-Bonin M, Blanquet-Diot S. Impact of polyethylene microplastics on human gut microbiota as assessed in an in vitro gut model. Toxicol Lett 2021. [DOI: 10.1016/s0378-4274(21)00781-5] [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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Fournier E. CT-Echo Fusion Imaging: A New Approach to Congenital Heart Disease. Archives of Cardiovascular Diseases Supplements 2021. [DOI: 10.1016/j.acvdsp.2021.04.060] [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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Fournier E. [Carpal tunnel syndrome: Rare causes and associated forms behind a common and stereotyped affection]. Rev Med Interne 2020; 41:451-458. [PMID: 31980186 DOI: 10.1016/j.revmed.2019.12.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 12/23/2019] [Indexed: 10/25/2022]
Abstract
Carpal tunnel syndrome (CTS) is too common a condition not to daily interact with the practitioner, if only because of its entanglement to other pathologies, causal or chance association. The typical symptomatology, with hand paresthesia and morning pain upon waking, is related to a median nerve injury in the confined space of the carpal tunnel, more often by local inflammation and tenosynovitis of the finger flexors (repetitive activity of the hands). SCC may be secondary to situations (pregnancy) or conditions (edema, hypothyroidism…), which exaggerate the ordinary pathophysiology or cause deposits in the channel (amyloidosis, mucopolysaccharidoses, etc.). Otherwise, SCC is favored by all neuropathies that cause nerve fragility (especially diabetes). It is sometimes the first sign of these various affections of which it can allow early diagnosis. Electroneuromyographic examination (ENMG) is a key examination to confirm the diagnosis (slowing of sensitive and motor conduction of the median nerve through the carpal tunnel, due to local demyelination), to look for a predisposing neuropathy and for signs of seriousness (amplitude reduction of electrophysiological signals) that indicate axonal loss. In SCC forms with only slowed conduction without sign of seriousness, a splint or infiltration treatment may be attempted. If this medical treatment does not bring healing, or if there are signs of seriousness or unbearable pains, a decompression surgery is indicated. Whether it is performed traditionally or endoscopically, it provides fast relief, even immediate.
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Affiliation(s)
- E Fournier
- Département de physiologie, faculté de médecine Pitié-Salpêtrière, Sorbonne université, 91, boulevard de l'Hôpital, 75013 Paris, France.
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Selegny M, Fournier E, Amsallem M, Tortigue M, Kara M, Benmoussa N, Cohen S, Isorni MA, Jais X, Humbert M, Hascoet S. P371 Right ventricle end-systolic remodeling index in patients with atrial septal defect and severe pulmonary arterial hypertension. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.219] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background Outcome of patients with atrial septal defect (ASD) and severe pulmonary arterial hypertension (PAH) relates to right ventricular (RV) function.
Magnetic resonance imaging (MRI) remains the gold standard for evaluating the RV function but it is not used routinely. We investigated the relationship between MRI and multiple echocardiography parameters, including the Right Ventricle End-Systolic Remodeling Index (RVESRI), a new prognostic marker in patients with PAH.
Methods 23 patients with ASD and severe PAH (median age 49y.o.[39-59], Sp0 2 92% [90-95], WHO functional class II or III, mean pulmonary artery pressure 51mmHg [40-59]) were included between 2014 and 2018. All patients underwent MRI and echocardiography assessment. Echocardiographic measurements of RV remodeling and function included TAPSE, RV fractional area change (RVFAC), peak systolic velocity of the tricuspid valve (S’TV), right atrial (RA) area, RV strain, Systolic to diastolic ratio, eccentricity index and RVESRI, defined by septum length divided by lateral wall length (Figure 1). Pericardial effusion was noted.
Results Median RV ejection fraction (EF) evaluated with MRI was 46 % [34-59]. RV dysfunction (RVEF < 45%) was observed in 43% of patients. Median RVFAC and
RVESRI were 29.6%[23-34] and 1.6[1.4-1.7] respectively. By spearman correlation, RVFAC and RVESRI were significantly correlated to RVEF (Rho 0.62, p < 0.007 and
Rho -0.51,p < 0.02 respectively). By linear regression, RVFAC and RVESRI were also correlated to RVEF (R 2 =0.36, p < 0.003 and R 2 =0.34, p < 0.08). Pericardial effusion was associated with RV dysfunction (p< 0.008) and a lower RVFAC (p < 0.01). TAPSE, S’TV and RV strain were not correlated with RVEF.
Conclusion RVFAC, RVESRI and pericardial effusion were markers of RV dysfunction in patients with ASD and severe PAH. RVESRI appears as a simple and reliable parameter for follow-up. Its prognostic value in patients with CHD remains to be demonstrated.
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Affiliation(s)
- M Selegny
- Surgical Centre Marie Lannelongue, Le Plessis Robinson, France
| | - E Fournier
- Surgical Centre Marie Lannelongue, Le Plessis Robinson, France
| | - M Amsallem
- Stanford University Medical Center, Division of cardiovascular Medicine, Stanford, United States of America
| | - M Tortigue
- Surgical Centre Marie Lannelongue, Le Plessis Robinson, France
| | - M Kara
- Surgical Centre Marie Lannelongue, Le Plessis Robinson, France
| | - N Benmoussa
- Surgical Centre Marie Lannelongue, Le Plessis Robinson, France
| | - S Cohen
- Surgical Centre Marie Lannelongue, Le Plessis Robinson, France
| | - M A Isorni
- Surgical Centre Marie Lannelongue, Le Plessis Robinson, France
| | - X Jais
- Bicetre University Hospital, Pneumology, Le Kremlin-Bicetre, France
| | - M Humbert
- Bicetre University Hospital, Pneumology, Le Kremlin-Bicetre, France
| | - S Hascoet
- Surgical Centre Marie Lannelongue, Le Plessis Robinson, France
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Hascoët S, Fournier E, Karsenty C, Tagorti M, Cohen S, Combes N, Lecerf F, Arribard N, Roussin R, Belli E, Isorni MA, Petit J, Ciobotaru V. Pulmonary artery 3D printing to plan percutaneous pulmonary valve implantation in Tetralogy of Fallot patients with large native outflow tract. Archives of Cardiovascular Diseases Supplements 2020. [DOI: 10.1016/j.acvdsp.2019.09.164] [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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Tortigue M, Ben Moussa N, Sitbon O, Montani D, Jais X, Savale L, Parent F, Lecerf F, Fournier E, Cohen S, Moisson L, Humbert M, Isorni MA, Hascoët S. 4d cardiac magnetic resonance flow in patients with pulmonary arterial hypertension associated with congenital heart disease. Archives of Cardiovascular Diseases Supplements 2020. [DOI: 10.1016/j.acvdsp.2019.09.132] [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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Masingue M, Arzel M, Sternberg D, Stojkovic T, Behin A, Bassez G, Vicart S, Péréon Y, Kuntzer T, Eymard B, Fournier E. P.100Pseudo-increment at repetitive nerve stimulation (Arzel's sign): a new tool for Brody myopathy diagnosis. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.129] [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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Van De Wyngaert Z, Fournier E, Bera E, Carrette M, Soenen V, Gauthier J, Preudhomme C, Boyer T. Immature platelet fraction (IPF): A reliable tool to predict peripheral thrombocytopenia. Curr Res Transl Med 2019; 68:37-42. [PMID: 30987895 DOI: 10.1016/j.retram.2019.04.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 03/21/2019] [Accepted: 04/02/2019] [Indexed: 01/08/2023]
Affiliation(s)
| | - E Fournier
- Centre de Biologie, Pathologie, Laboratoire d'hématologie, CHU Lille, France; Laboratoire d'Hématologie, Centre Hospitalier de Dunkerque, Dunkerque, France
| | - E Bera
- Laboratoire d'Hématologie, CHU de Rouen, France
| | - M Carrette
- Laboratoire d'Hématologie, CHU de Rouen, France
| | - V Soenen
- Centre de Biologie, Pathologie, Laboratoire d'hématologie, CHU Lille, France
| | - J Gauthier
- Service des Maladies du Sang, CHU Lille, Lille, France
| | - C Preudhomme
- Service des Maladies du Sang, CHU Lille, Lille, France
| | - T Boyer
- Centre de Biologie, Pathologie, Laboratoire d'hématologie, CHU Lille, France.
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Cochet H, Iriart X, Allain-Nicolaï A, Jalal Z, Dinet M, Fournier E, Thambo J, Montaudon M, Laurent F. Focal scar and diffuse myocardial fibrosis in patients with history of repaired tetralogy of Fallot. Archives of Cardiovascular Diseases Supplements 2019. [DOI: 10.1016/j.acvdsp.2018.10.281] [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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Hogrel J, Annoussamy M, Chabanon A, Daron A, Péréon Y, Cances C, Vuillerot C, Goemans N, Cuisset J, Laugel V, Schara U, Gargaun E, Gidaro T, Seferian A, Turk S, Hermosilla R, Fournier E, Baudin P, Carlier P, Servais L, Study Group. SMA CLINICAL DATA, OUTCOME MEASURES AND REGISTRIES. Neuromuscul Disord 2018. [DOI: 10.1016/j.nmd.2018.06.116] [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: 10/28/2022]
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Fournier E. L’analyse des PUM : une affaire d’expert ? Rev Neurol (Paris) 2018. [DOI: 10.1016/j.neurol.2018.02.019] [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]
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Guimarães-Costa R, Iancu Ferfoglia R, Leonard-Louis S, Ziegler F, Magy L, Fournier E, Dubourg O, Bouche P, Maisonobe T, Lacour A, Moerman A, Latour P, Stojkovic T. Phenotypic spectrum of Charcot-Marie-Tooth disease due to LITAF/SIMPLE mutations: a study of 18 patients. Eur J Neurol 2017; 24:530-538. [PMID: 28211240 DOI: 10.1111/ene.13239] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 11/30/2016] [Indexed: 01/11/2023]
Abstract
BACKGROUND AND PURPOSE Charcot-Marie-Tooth (CMT) 1C due to mutations in LITAF/SIMPLE is a rare subtype amongst the autosomal dominant demyelinating forms of CMT. Our objective was to report the clinical and electrophysiological characteristics of 18 CMT1C patients and compare them to 20 patients with PMP22 mutations: 10 CMT1A patients and 10 patients with hereditary neuropathy with liability to pressure palsies (HNPP). METHODS Charcot-Marie-Tooth 1C patients were followed-up in referral centres for neuromuscular diseases or were identified by familial survey. All CMT1A and HNPP patients were recruited at the referral centre for neuromuscular diseases of Pitié-Salpêtrière Hospital. RESULTS Two phenotypes were identified amongst 18 CMT1C patients: the classical CMT form ('CMT-like', 11 cases) and a predominantly sensory form ('sensory form', seven cases). The mean CMT neuropathy score was 4.45 in CMT1C patients. Motor nerve conduction velocities in the upper limbs were significantly more reduced in CMT1A than in CMT1C patients. On the other hand, the motor nerve conduction velocity of the median nerve was significantly lower in CMT1C compared to the HNPP group. Distal motor latency was significantly more prolonged in CMT1A patients compared to the CMT1C and HNPP groups, the latter two groups having similar distal motor latency values. Molecular analysis revealed five new LITAF/SIMPLE mutations (Ala111Thr, Gly112Ala, Trp116Arg, Pro135Leu, Arg160Cys). CONCLUSIONS Our study delineates CMT1C as mostly a mild form of neuropathy, and gives clinical and electrophysiological clues differentiating CMT1C from CMT1A and HNPP. Delineating phenotypes in CMT subtypes is important to orient molecular diagnosis and to help to interpret complex molecular findings.
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Affiliation(s)
- R Guimarães-Costa
- Centre de Référence des Maladies Neuromusculaires Paris Est, Institut de Myologie, Hôpital Pitié-Salpêtrière, Paris, France
| | - R Iancu Ferfoglia
- Centre de Référence des Maladies Neuromusculaires Paris Est, Institut de Myologie, Hôpital Pitié-Salpêtrière, Paris, France
| | - S Leonard-Louis
- Centre de Référence des Maladies Neuromusculaires Paris Est, Institut de Myologie, Hôpital Pitié-Salpêtrière, Paris, France
| | - F Ziegler
- Service de Neurologie, Centre Hospitalier Intercommunale de la Haute Saône, Vesoul, France
| | - L Magy
- Centre de Référence Neuropathies Périphérique Rares, CHU de Limoges - Hôpital Dupuytren, Limoges, France
| | - E Fournier
- Département de Neurophysiologie Clinique, Hôpital Pitié-Salpêtrière, Paris, France
| | - O Dubourg
- Centre de Référence des Maladies Neuromusculaires Paris Est, Institut de Myologie, Hôpital Pitié-Salpêtrière, Paris, France
| | - P Bouche
- Département de Neurophysiologie Clinique, Hôpital Pitié-Salpêtrière, Paris, France
| | - T Maisonobe
- Département de Neurophysiologie Clinique, Hôpital Pitié-Salpêtrière, Paris, France
| | - A Lacour
- Clinique Neurologique, Centre Hospitalier Universitaire de Lille, Lille, France
| | - A Moerman
- Département de Génétique Médicale, Hôpital Jeanne de Flandres, Centre Hospitalier Universitaire de Lille, Lille, France
| | - P Latour
- Service de Neurobiologie, Centre de Biologie et Pathologie Est, Centre Hospitalier Universitaire de Lyon HCL, GH Est, Lyon, France
| | - T Stojkovic
- Centre de Référence des Maladies Neuromusculaires Paris Est, Institut de Myologie, Hôpital Pitié-Salpêtrière, Paris, France
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Matz M, Coleman MP, Sant M, Chirlaque MD, Visser O, Gore M, Allemani C, Bouzbid S, Hamdi-Chérif M, Zaidi Z, Bah E, Swaminathan R, Nortje S, El Mistiri M, Bayo S, Malle B, Manraj S, Sewpaul-Sungkur R, Fabowale A, Ogunbiyi O, Bradshaw D, Somdyala N, Stefan D, Abdel-Rahman M, Jaidane L, Mokni M, Kumcher I, Moreno F, González M, Laura E, Espinola S, Calabrano G, Carballo Quintero B, Fita R, Garcilazo D, Giacciani P, Diumenjo M, Laspada W, Green M, Lanza M, Ibañez S, Lima C, Lobo de Oliveira E, Daniel C, Scandiuzzi C, De Souza P, Melo C, Del Pino K, Laporte C, Curado M, de Oliveira J, Veneziano C, Veneziano D, Latorre M, Tanaka L, Azevedo e Silva G, Galaz J, Moya J, Herrmann D, Vargas S, Herrera V, Uribe C, Bravo L, Arias-Ortiz N, Jurado D, Yépez M, Galán Y, Torres P, Martínez-Reyes F, Pérez-Meza M, Jaramillo L, Quinto R, Cueva P, Yépez J, Torres-Cintrón C, Tortolero-Luna G, Alonso R, Barrios E, Nikiforuk C, Shack L, Coldman A, Woods R, Noonan G, Turner D, Kumar E, Zhang B, McCrate F, Ryan S, Hannah H, Dewar R, MacIntyre M, Lalany A, Ruta M, Marrett L, Nishri D, McClure C, Vriends K, Bertrand C, Louchini R, Robb K, Stuart-Panko H, Demers S, Wright S, George J, Shen X, Brockhouse J, O'Brien D, Ward K, Almon L, Bates J, Rycroft R, Mueller L, Phillips C, Brown H, Cromartie B, Schwartz A, Vigneau F, MacKinnon J, Wohler B, Bayakly A, Clarke C, Glaser S, West D, Green M, Hernandez B, Johnson C, Jozwik D, Charlton M, Lynch C, Huang B, Tucker T, Deapen D, Liu L, Hsieh M, Wu X, Stern K, Gershman S, Knowlton R, Alverson J, Copeland G, Rogers D, Lemons D, Williamson L, Hood M, Hosain G, Rees J, Pawlish K, Stroup A, Key C, Wiggins C, Kahn A, Schymura M, Leung G, Rao C, Giljahn L, Warther B, Pate A, Patil M, Schubert S, Rubertone J, Slack S, Fulton J, Rousseau D, Janes T, Schwartz S, Bolick S, Hurley D, Richards J, Whiteside M, Nogueira L, Herget K, Sweeney C, Martin J, Wang S, Harrelson D, Keitheri Cheteri M, Farley S, Hudson A, Borchers R, Stephenson L, Espinoza J, Weir H, Edwards B, Wang N, Yang L, Chen J, Song G, Gu X, Zhang P, Ge H, Zhao D, Zhang J, Zhu F, Tang J, Shen Y, Wang J, Li Q, Yang X, Dong J, Li W, Cheng L, Chen J, Huang Q, Huang S, Guo G, Wei K, Chen W, Zeng H, Demetriou A, Pavlou P, Mang W, Ngan K, Swaminathan R, Kataki A, Krishnatreya M, Jayalekshmi P, Sebastian P, Sapkota S, Verma Y, Nandakumar A, Suzanna E, Keinan-Boker L, Silverman B, Ito H, Nakagawa H, Hattori M, Kaizaki Y, Sugiyama H, Utada M, Katayama K, Narimatsu H, Kanemura S, Koike T, Miyashiro I, Yoshii M, Oki I, Shibata A, Matsuda T, Nimri O, Ab Manan A, Bhoo-Pathy N, Tuvshingerel S, Chimedsuren O, Al Khater A, El Mistiri M, Al-Eid H, Jung K, Won Y, Chiang C, Lai M, Suwanrungruang K, Wiangnon S, Daoprasert K, Pongnikorn D, Geater S, Sriplung H, Eser S, Yakut C, Hackl M, Mühlböck H, Oberaigner W, Zborovskaya A, Aleinikova O, Henau K, Van Eycken L, Dimitrova N, Valerianova Z, Šekerija M, Zvolský M, Engholm G, Storm H, Innos K, Mägi M, Malila N, Seppä K, Jégu J, Velten M, Cornet E, Troussard X, Bouvier A, Faivre J, Guizard A, Bouvier V, Launoy G, Arveux P, Maynadié M, Mounier M, Fournier E, Woronoff A, Daoulas M, Clavel J, Le Guyader-Peyrou S, Monnereau A, Trétarre B, Colonna M, Cowppli-Bony A, Molinié F, Bara S, Degré D, Ganry O, Lapôtre-Ledoux B, Grosclaude P, Estève J, Bray F, Piñeros M, Sassi F, Stabenow R, Eberle A, Erb C, Nennecke A, Kieschke J, Sirri E, Kajueter H, Emrich K, Zeissig S, Holleczek B, Eisemann N, Katalinic A, Brenner H, Asquez R, Kumar V, Ólafsdóttir E, Tryggvadóttir L, Comber H, Walsh P, Sundseth H, Devigili E, Mazzoleni G, Giacomin A, Bella F, Castaing M, Sutera A, Gola G, Ferretti S, Serraino D, Zucchetto A, Lillini R, Vercelli M, Busco S, Pannozzo F, Vitarelli S, Ricci P, Pascucci C, Autelitano M, Cirilli C, Federico M, Fusco M, Vitale M, Usala M, Cusimano R, Mazzucco W, Michiara M, Sgargi P, Maule M, Sacerdote C, Tumino R, Di Felice E, Vicentini M, Falcini F, Cremone L, Budroni M, Cesaraccio R, Contrino M, Tisano F, Fanetti A, Maspero S, Candela G, Scuderi T, Gentilini M, Piffer S, Rosso S, Sacchetto L, Caldarella A, La Rosa F, Stracci F, Contiero P, Tagliabue G, Dei Tos A, Zorzi M, Zanetti R, Baili P, Berrino F, Gatta G, Sant M, Capocaccia R, De Angelis R, Liepina E, Maurina A, Smailyte G, Agius D, Calleja N, Siesling S, Visser O, Larønningen S, Møller B, Dyzmann-Sroka A, Trojanowski M, Góźdż S, Mężyk R, Grądalska-Lampart M, Radziszewska A, Didkowska J, Wojciechowska U, Błaszczyk J, Kępska K, Bielska-Lasota M, Kwiatkowska K, Forjaz G, Rego R, Bastos J, Silva M, Antunes L, Bento M, Mayer-da-Silva A, Miranda A, Coza D, Todescu A, Valkov M, Adamcik J, Safaei Diba C, Primic-Žakelj M, Žagar T, Stare J, Almar E, Mateos A, Quirós J, Bidaurrazaga J, Larrañaga N, Díaz García J, Marcos A, Marcos-Gragera R, Vilardell Gil M, Molina E, Sánchez M, Franch Sureda P, Ramos Montserrat M, Chirlaque M, Navarro C, Ardanaz E, Moreno-Iribas C, Fernández-Delgado R, Peris-Bonet R, Galceran J, Khan S, Lambe M, Camey B, Bouchardy C, Usel M, Ess S, Herrmann C, Bulliard J, Maspoli-Conconi M, Frick H, Kuehni C, Schindler M, Bordoni A, Spitale A, Chiolero A, Konzelmann I, Dehler S, Matthes K, Rashbass J, Stiller C, Fitzpatrick D, Gavin A, Bannon F, Black R, Brewster D, Huws D, White C, Finan P, Allemani C, Bonaventure A, Carreira H, Coleman M, Di Carlo V, Harewood R, Liu K, Matz M, Montel L, Nikšić M, Rachet B, Sanz N, Spika D, Stephens R, Peake M, Chalker E, Newman L, Baker D, Soeberg M, Aitken J, Scott C, Stokes B, Venn A, Farrugia H, Giles G, Threlfall T, Currow D, You H, Hendrix J, Lewis C. Erratum to “The histology of ovarian cancer: Worldwide distribution and implications for international survival comparisons (CONCORD-2)” [Gynecol. Oncol. 144 (2017) 405–413]. Gynecol Oncol 2017; 147:726. [DOI: 10.1016/j.ygyno.2017.06.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Walker AS, Ravigne V, Rieux A, Ali S, Carpentier F, Fournier E. Fungal adaptation to contemporary fungicide applications: the case of Botrytis cinerea populations from Champagne vineyards (France). Mol Ecol 2017; 26:1919-1935. [PMID: 28231406 DOI: 10.1111/mec.14072] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 02/13/2017] [Accepted: 02/13/2017] [Indexed: 11/26/2022]
Abstract
In addition to being one of the most acute problems impeding chemical control of fungal diseases, the evolution of fungicide resistance is an emblematic case of local adaptation to spatially heterogeneous and temporally variable selection pressures. Here we dissected the adaptation of Botrytis cinerea (the causal agent of grey mould) populations on grapes to several fungicides. We carried out a 2-year survey (four collection dates) on three treated/untreated pairs of plots from vineyards in Champagne (France) and monitored the frequency of four resistant phenotypes that are unambiguously associated with four distinct genotypes. For two loci under selection by currently used fungicides (MDR1 and MDR2), the frequencies of resistant mutations at vintage were greater in treated plots compared to untreated plots, showing that the effect of selection is detectable even at the plot scale. This effect was not detectable for two other loci under selection by previously used fungicides (BenR1 and ImiR1). We also found that treatment with currently used fungicides reduced B. cinerea effective population size, leading to a significant decrease in genic diversity and allelic richness in treated vs. untreated plots. We further highlight that even under ample drift and migration, fungal populations can present an efficient response to selection. Finally, for the four studied loci, the costs of fungicide resistance were estimated by modelling the decrease in the frequency of resistant mutations in the absence of treatment. We discuss the importance of these estimates for defining strategies for limiting or counteracting the local adaptation of pests to fungicides.
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Affiliation(s)
- A-S Walker
- UMR BIOGER, INRA, AgroParisTech, Université Paris-Saclay, Avenue Lucien Brétignières, 78850, Thiverval-Grignon, France
| | - V Ravigne
- CIRAD, UMR PVBMT, 97410, Saint-Pierre, Réunion, France
- CIRAD, UMR BGPI, 34398, Montpellier, France
| | - A Rieux
- CIRAD, UMR PVBMT, 97410, Saint-Pierre, Réunion, France
- CIRAD, UMR BGPI, 34398, Montpellier, France
| | - S Ali
- UMR BGPI, INRA, CIRAD, Montpellier SupAgro, TA A 54/K, Campus international de Baillarguet, 34398, Montpellier Cedex 5, France
- Institute of Biotechnology & Genetic Engineering, The University of Agriculture, Peshawar, 25000, Pakistan
| | - F Carpentier
- UMR BIOGER, INRA, AgroParisTech, Université Paris-Saclay, Avenue Lucien Brétignières, 78850, Thiverval-Grignon, France
| | - E Fournier
- UMR BGPI, INRA, CIRAD, Montpellier SupAgro, TA A 54/K, Campus international de Baillarguet, 34398, Montpellier Cedex 5, France
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Salilew-Wondim D, Hoelker M, Besenfelder U, Havlicek V, Held E, Rings F, Gagné D, Fournier E, Sirard MA, Robert C, Tholen E, Neuhoff C, Schellander K, Tesfaye D. 69 BLASTOCYSTS DEVELOPED FROM EMBRYOS THAT SPENT UP TO 2-CELL STAGE IN VIVO EXHIBITED MASSIVE DNA METHYLATION DYSREGULATION INCLUDING IMPRINTED GENES AND DNA METHYLTRANSFERASES. Reprod Fertil Dev 2017. [DOI: 10.1071/rdv29n1ab69] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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
Suboptimal culture condition before minor or major genome activation is believed to affect the quality and the transcriptome landscape of the resulting blastocysts. Thus, we hypothesised that exposure of bovine embryos to suboptimal culture condition before minor embryonic genome activation could affect the genome methylation patterns of the resulting blastocysts. Therefore, here we aimed to investigate the genome wide DNA methylation patterns of blastocysts derived from embryos developed up to 2-cell stages in vivo followed by in vitro culture. For this, Simmental heifers were superovulated and artificially inseminated. The 2-cell stage embryos were then flushed using a state-of-the-art nonsurgical endoscopic early-stage embryo flushing technique and in vitro cultured until the blastocyst stage. The DNA methylation patterns of these blastocysts were then determined with reference to blastocysts derived from embryos developed completely under in vivo condition. For this, the genomic DNA isolated from each blastocyst group were fragmented, and unmethylated genomic regions were cleaved using methylation sensitive restriction enzymes. The samples were then amplified using ligation mediated PCR and labelled either with Cy-3 or Cy-5 dyes in a dye-swap design using the ULS Fluorescent genomic DNA labelling kit (Kreatech Biotechnology) and hybridized on an EmbryoGENE DNA Methylation Array as described previously (Saadi 2014 BMC Genomics 15, 451; Salilew-Wondim 2015 PLoS ONE 10, e0140467). Array hybridization was performed for 40 h at 65°C, and 4 hybridizations were preformed to represent 4 biological replicates. The slides were scanned using Agilent’s High-Resolution C Scanner (Agilent Technologies, Santa Clara, CA, USA), and Agilent’s Feature Extraction software (Agilent Technologies) was used to extract data features. Differentially methylated regions with fold change ≥1.5 and P-value < 0.05 were identified using linear modelling for microarray and R software. The results have shown that including imprinted genes (PEG3, IGF1, RASGRF1, IGF2R, GRB10, SNRPN, and PLAGL1) and DNA methyltransferases (DNMT1, DNMT3A, and DNMT3B), a total of 10,388 genomic regions were differentially methylated, of which 6393 genomic regions were hypermethylated in blastocysts derived from 2-cell flush compared with the complete vivo group. In addition, comparative analysis of the current DNA methylation data with our previous transcriptome profile data have shown that including DNMT3A, CTSZ, ElF3E, and PPP2R2B, the expression patterns of 603 genes was inversely correlated with the methylation patterns. Moreover, canonical pathways including gap junction, adherens junction, axon guidance, focal adhesion, and calcium signalling were affected by differentially methylated regions. Therefore, this study indicated that exposure of embryos to suboptimal culture condition before embryonic genome activation would lead to a massive dysregulation of methylation pattern of genes involved in developmentally relevant pathways in the resulting blastocysts.
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20
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Desmet KLJ, Van Hoeck V, Gagné D, Fournier E, Thakur A, O'Doherty AM, Walsh CP, Sirard MA, Bols PEJ, Leroy JLMR. Exposure of bovine oocytes and embryos to elevated non-esterified fatty acid concentrations: integration of epigenetic and transcriptomic signatures in resultant blastocysts. BMC Genomics 2016; 17:1004. [PMID: 27931182 PMCID: PMC5146907 DOI: 10.1186/s12864-016-3366-y] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 12/02/2016] [Indexed: 12/30/2022] Open
Abstract
Background Metabolic stress associated with negative energy balance in high producing dairy cattle and obesity in women is a risk factor for decreased fertility. Non-esterified fatty acids (NEFA) are involved in this pathogenesis as they jeopardize oocyte and embryo development. Growing evidence indicates that maternal metabolic disorders can disturb epigenetic programming, such as DNA methylation, in the offspring. Oocyte maturation and early embryo development coincide with methylation changes and both are sensitive to adverse environments. Therefore, we investigated whether elevated NEFA concentrations affect establishment and maintenance of DNA methylation in oocytes and embryos, subsequently altering transcriptomic profiles and developmental competence of resultant blastocysts. Results Bovine oocytes and embryos were exposed to different NEFA concentrations in separate experiments. In the first experiment, oocytes were matured in vitro for 24 h in medium containing: 1) physiological (“BASAL”) concentrations of oleic (OA), palmitic (PA) and stearic (SA) acid or 2) pathophysiological (“HIGH COMBI”) concentrations of OA, PA and SA. In the second experiment, zygotes were cultivated in vitro for 6.5 days under BASAL or HIGH COMBI conditions. Developmental competence was evaluated by assessing cleavage and blastocyst rate. Overall gene expression and DNA methylation of resultant blastocysts were analyzed using microarray. DNA methylation data were re-evaluated by pyrosequencing. HIGH COMBI-exposed oocytes and embryos displayed a lower competence to develop into blastocysts compared to BASAL-exposed counterparts (19.3% compared to 23.2% and 18.2% compared to 25.3%, respectively) (P < 0.05). HIGH COMBI-exposed oocytes and embryos resulted in blastocysts with altered DNA methylation and transcriptomic fingerprints, compared to BASAL-exposed counterparts. Differences in gene expression and methylation were more pronounced after exposure during culture compared to maturation suggesting that zygotes are more susceptible to adverse environments. Main gene networks affected were related to lipid and carbohydrate metabolism, cell death, immune response and metabolic disorders. Conclusions Overall, high variation in methylation between blastocysts made it difficult to draw conclusions concerning methylation of individual genes, although a clear overview of affected pathways was obtained. This may offer clues regarding the high rate of embryonic loss and metabolic diseases during later life observed in offspring from mothers displaying lipolytic disorders.
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Affiliation(s)
- K L J Desmet
- Laboratory of Veterinary Physiology and Biochemistry, Department of Veterinary Sciences, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Wilrijk, Belgium.
| | - V Van Hoeck
- Laboratory of Veterinary Physiology and Biochemistry, Department of Veterinary Sciences, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Wilrijk, Belgium
| | - D Gagné
- Centre de Recherche en Biologie de la Reproduction (CRBR), Département des Sciences Animales, Université Laval, Québec, Canada
| | - E Fournier
- Centre de Recherche en Biologie de la Reproduction (CRBR), Département des Sciences Animales, Université Laval, Québec, Canada
| | - A Thakur
- British Columbia Cancer Agency, University of British Columbia, Vancouver, Canada
| | - A M O'Doherty
- School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | - C P Walsh
- Centre for Molecular Biosciences, School of Biomedical Sciences, University of Ulster, Coleraine, UK
| | - M A Sirard
- Centre de Recherche en Biologie de la Reproduction (CRBR), Département des Sciences Animales, Université Laval, Québec, Canada
| | - P E J Bols
- Laboratory of Veterinary Physiology and Biochemistry, Department of Veterinary Sciences, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Wilrijk, Belgium
| | - J L M R Leroy
- Laboratory of Veterinary Physiology and Biochemistry, Department of Veterinary Sciences, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Wilrijk, Belgium
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Semplicini C, Arzel-Hézode M, Stojkovic T, Béhin A, Leonard-Louis S, Eymard B, Laforêt P, Fournier E. EMG diagnosis of McArdle disease with long exercise test. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.405] [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: 10/21/2022]
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22
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Leonard-Louis S, Latour P, De Becdelievre A, Themar-Noel C, Fournier E, Stojkovic T. TRPV4 gene polymorphism as a phenotype modifier in a family with COL6-linked Bethlem myopathy. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.369] [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: 11/29/2022]
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23
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Grivaux M, Duvert B, Ferrer-Lopez P, Hominal S, Goarant E, Brichet-Martin A, Romand P, Fournier E, Asselain B, Debieuvre D. [One-year survival improvement in lung cancer in France. Results of the prospective real life studies KBP-2000-CPHG and KBP-2010-CPHG]. Rev Pneumol Clin 2016; 72:163-170. [PMID: 27113617 DOI: 10.1016/j.pneumo.2016.02.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Accepted: 02/26/2016] [Indexed: 06/05/2023]
Abstract
INTRODUCTION The French college of general hospital respiratory physicians (CPHG) has conducted 10 years apart two prospective observational studies to assess changes in the primary lung cancer epidemiology and outcomes, including 1-year mortality. METHODS In 2000 and 2010, all volunteer adult patients followed in the respiratory department of general hospitals participating in the study were consecutively included if their lung cancer was histologically or cytologically diagnosed between 01 January and 31 December (sample date). Their vital status at least 1 year after inclusion and date of death (if applicable) were collected. RESULTS Respectively, 5667 and 7051 patients were included in the study in 2000 and 2010 and vital status of 5441 (96.0%) and 6981 (99%) patients known. One-year mortality rate was 61.8% in 2000 and 56.4% in 2010 (P<0.0001). Mortality rate significantly decreased from 2000 to 2010 in non-small-cell lung cancer (60.7% vs. 55.2%; P<0.0001) but not in small-cell lung cancer (66.9% vs. 64.2%; P=0.22). The year of diagnosis was an independent risk factor of mortality (OR=0.84; 95% CI: 0.77-0.91; P<0.0001). CONCLUSION Although it remains low (43.6% in 2010), life expectancy at 1 year for patients with lung cancer has improved in 10 years. Five-year results are expected to show whether this improvement is maintained or not over time.
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Affiliation(s)
- M Grivaux
- Service de pneumologie, centre hospitalier de Meaux, 6-8, rue Saint-Fiacre, BP 218, 77104 Meaux cedex, France.
| | - B Duvert
- Service d'oncologie, centre hospitalier de Montélimar, quartier Beausseret, route de Sauzet, 26216 Montélimar, France
| | - P Ferrer-Lopez
- Service de pneumologie, centre hospitalier de la polynésie française, avenue du Général-de-Gaulle, 98713 Papeete, Polynésie française
| | - S Hominal
- Service de pneumologie, centre hospitalier de la Région D'annecy, 1, avenue de l'Hôpital, 74370 Metz-Tessy, France
| | - E Goarant
- Service de pneumologie, centre hospitalier de Saint-Malo, 1, rue de la Marne, 35400 Saint-Malo, France
| | - A Brichet-Martin
- Service de pneumologie, centre hospitalier Victor-Provo, 35, rue de Barbieux, CS 60359, 59056 Roubaix cedex, France
| | - P Romand
- Service de pneumologie, hôpitaux du Leman, 3, avenue de la Dame, 74200 Thonon-les-Bains, France
| | - E Fournier
- Service de pneumologie, polyclinique de Henin-Beaumont, 1110, route de Courrières, 62110 Hénin-Beaumont, France
| | | | - D Debieuvre
- Service de pneumologie, hôpital Émile-Muller, 20, avenue du Dr-René-Laennec, 68070 Mulhouse, France
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Molinier O, Goupil F, Debieuvre D, Clarot C, Ménager P, Dot J, Carbonnelle M, Barre P, Tagu P, Mahmoud H, Figueredo M, Bernier C, Saillour M, Romand P, Gentil le Pecq B, Fournier E, Desurmont-Salasc B, Perrichon M, Blanchon F, Grivaux M. 1037 One-year mortality in 6,101 non-small-cell lung cancers (NSCLCs) according to histology. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30463-4] [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: 10/22/2022]
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Christophe V, Duprez C, Congard A, Antoine P, Lesur A, Fournier E, Vanlemmens L. The subjective experience of young women with non-metastatic breast cancer: the Young Women with Breast Cancer Inventory. Health Qual Life Outcomes 2015; 13:73. [PMID: 26036192 PMCID: PMC4451721 DOI: 10.1186/s12955-015-0273-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Accepted: 05/23/2015] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND The subjective experience of young women with breast cancer has some particular features linked to the impact of the disease and its treatment on their age-related issues (e.g. desire for a child, couple relationship, career management). Despite these specific concerns, no questionnaire currently targets the young breast cancer patient's quality of life, subjective experience or common problems when facing cancer. This study presents the psychometric validation of an inventory that aimed to measure the impact of breast cancer on the quality of life of young women (<45 years of age) with non-metastatic disease. METHODS 546 women aged <45 years when diagnosed with a non-metastatic breast cancer were recruited in 27 French cancer research and treatment centers. They answered a self-reported questionnaire created from verbatim collected by non-directive interviews carried out with 69 patients in a first qualitative study. Exploratory and confirmatory analyses were conducted in order to obtain the final structure of the scale. Internal consistency, test-retest reliability and concurrent validity with quality of life questionnaires currently used (QLQ-C30 and the QLQ-BR23 module) were then assessed. RESULTS The YW-BCI36 contains 36 items and highlights 8 factors: 1) feeling of couple cohesion, 2) negative affectivity and apprehension about the future, 3) management of child(ren) and of everyday life, 4) sharing with close relatives, 5) body image and sexuality, 6) financial difficulties, 7) deterioration of relationships with close relatives, and 8) career management. Psychometric analyses indicated good internal consistency (Cronbach's alpha values ranging from 0.76 to 0.91) and temporal reliability (Bravais-Pearson correlations ranging from 0.66 to 0.85). As expected, there were quite strong correlations between the YW-BCI36 and the QLQ-C30 and QLQ-BR23 scores (r ranging from 0.20 to -0.66), indicating adequate concurrent validity. CONCLUSIONS The YW-BCI36 was confirmed as a valid scale for evaluating the subjective experience of breast cancer in young women. This instrument could help to identify the problems of these women more precisely, in order to respond to them better by an optimal care management. This scale may improve the medical, psychological and social care of breast cancer patients.
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Affiliation(s)
- V Christophe
- Université de Lille - SCALab UMR CNRS 9193, Rue du Barreau, BP 60149, F-59653, Villeneuve d'Ascq cedex, France. .,SIRIC ONCOLille - Maison Régionale de la Recherche Clinique - 6, rue du Professeur Laguesse, 59037, Lille cedex, France.
| | - C Duprez
- Université de Lille - SCALab UMR CNRS 9193, Rue du Barreau, BP 60149, F-59653, Villeneuve d'Ascq cedex, France. .,SIRIC ONCOLille - Maison Régionale de la Recherche Clinique - 6, rue du Professeur Laguesse, 59037, Lille cedex, France.
| | - A Congard
- Aix-Marseille Université, Centre de Recherche PsyCLÉ (EA 3273), 29, avenue Robert Schuman, F-13621, Aix en Provence cedex 1, France.
| | - P Antoine
- Université de Lille - SCALab UMR CNRS 9193, Rue du Barreau, BP 60149, F-59653, Villeneuve d'Ascq cedex, France.
| | - A Lesur
- Institut de Cancérologie de Lorraine- Centre Alexis Vautrin, 6 Avenue de Bourgogne, 54519, Vandoeuvre-lès-Nancy, France.
| | - E Fournier
- Université de Lille - SCALab UMR CNRS 9193, Rue du Barreau, BP 60149, F-59653, Villeneuve d'Ascq cedex, France.
| | - L Vanlemmens
- Centre Oscar Lambret - Département de Sénologie, BP 307, F-59020, Lille cedex, France.
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Christophe V, Duprez C, Congard A, Fournier E, Lesur A, Antoine P, Vanlemmens L. Evaluate the subjective experience of the disease and its treatment in the partners of young women with non-metastatic breast cancer. Eur J Cancer Care (Engl) 2015; 25:734-43. [DOI: 10.1111/ecc.12327] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/07/2015] [Indexed: 12/01/2022]
Affiliation(s)
- V. Christophe
- UMR CNRS 9193 Cognitives and Affectives Sciences; Université de Lille; F-59653 Villeneuve d'Ascq Cedex
- SIRIC ONCOLille - Maison Régionale de la Recherche Clinique; 59037 Lille Cedex France
| | - C. Duprez
- UMR CNRS 9193 Cognitives and Affectives Sciences; Université de Lille; F-59653 Villeneuve d'Ascq Cedex
- SIRIC ONCOLille - Maison Régionale de la Recherche Clinique; 59037 Lille Cedex France
| | - A. Congard
- Centre de Recherche PsyCLÉ (EA 3273); Aix-Marseille Université; F-13621 Aix en Provence Cedex 1 France
| | - E. Fournier
- UMR CNRS 9193 Cognitives and Affectives Sciences; Université de Lille; F-59653 Villeneuve d'Ascq Cedex
| | - A. Lesur
- Institut de Cancérologie de Lorraine; Centre Alexis Vautrin; 54519 Vandoeuvre-lès-Nancy France
| | - P. Antoine
- UMR CNRS 9193 Cognitives and Affectives Sciences; Université de Lille; F-59653 Villeneuve d'Ascq Cedex
| | - L. Vanlemmens
- Département de Sénologie; Centre Oscar Lambret; F-59020 Lille Cedex France
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Morizot-Koutlidis R, André-Obadia N, Antoine JC, Attarian S, Ayache S, Azabou E, Benaderette S, Camdessanché JP, Cassereau J, Convers P, d’Anglejean J, Delval A, Durand MC, Etard O, Fayet G, Fournier E, Franques J, Gavaret M, Guehl D, Guerit JM, Krim E, Kubis N, Lacour A, Lozeron P, Mauguière F, Merle PE, Mesrati F, Mutschler V, Nicolas G, Nordine T, Pautot V, Péréon Y, Petiot P, Pouget J, Praline J, Salhi H, Trébuchon A, Tyvaert L, Vial C, Zola JM, Zyss J, Lefaucheur JP. Somatosensory evoked potentials in the assessment of peripheral neuropathies: Commented results of a survey among French-speaking practitioners and recommendations for practice. Neurophysiol Clin 2015; 45:131-42. [DOI: 10.1016/j.neucli.2015.04.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 03/31/2015] [Accepted: 04/02/2015] [Indexed: 12/14/2022] Open
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Grange F, Woronoff AS, Bera R, Colomb M, Lavole B, Fournier E, Arnold F, Barbe C. Efficacy of a general practitioner training campaign for early detection of melanoma in France. Br J Dermatol 2015; 170:123-9. [PMID: 23937244 DOI: 10.1111/bjd.12585] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/05/2013] [Indexed: 11/26/2022]
Abstract
BACKGROUND To date, no strategy for improving early diagnosis of melanoma has been evaluated on a population basis in France. OBJECTIVE To evaluate the efficacy of a general practitioner (GP) awareness and training campaign in a pilot French geographical region (Champagne-Ardenne), including 1.34 million inhabitants, 1241 GPs, 56 dermatologists and a population-based melanoma registry. METHODS All GPs received repeated awareness postal mailings in 2008 and 398 (32.1%) attended training sessions organized by 27 dermatologists. The pre- (2005-7) and post-campaign (2009-11) periods were compared for the following: primary endpoint - the world-standardized incidence of very thick melanomas (VTM) (Breslow thickness ≥ 3 mm); secondary endpoints--the mean Breslow thickness; the proportions of VTM and of thin (< 1 mm) melanomas among invasive cases; and the ratio of in situ/all melanoma cases. Similar measures were performed in the control area of Doubs/Belfort territory (655,000 ha), where no similar campaign was carried out. RESULTS The incidence of VTM decreased from 1.07 to 0.71 per 100 000 habitants per year (P = 0.01), the mean Breslow thickness from 1.95 to 1.68 mm (P = 0.06) and the proportion of VTM from 19.2% to 12.8% (P = 0.01). The proportion of thin and in situ melanomas increased from 50.9% to 57.4% (P = 0.05) and from 20.1% to 28.2% (P = 0.001), respectively. No significant variation was observed in Doubs/Belfort territory. CONCLUSION These results strongly support the efficacy of such a campaign targeting GPs and provide a rationale for a larger public health campaign in France, including training of GPs by dermatologists and encouraging patients to ask their GP for a systematic skin examination.
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Affiliation(s)
- F Grange
- Service de Dermatologie, Hôpital Robert Debré, Reims, France
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Salilew-Wondim D, Hoelker M, Besenfelder U, Havlicek V, Rings F, Gagné D, Fournier E, Sirard MA, Tholen E, Looft C, Neuhoff C, Schellander K, Tesfaye D. 199 IN VITRO-DEVELOPED BOVINE BLASTOCYSTS ARE MARKED WITH ABERRANT HYPER- AND HYPO-METHYLATED GENOMIC REGIONS. Reprod Fertil Dev 2015. [DOI: 10.1071/rdv27n1ab199] [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
Most often, in vitro produced embryos display poor quality and altered gene expression patterns compared to their in vivo counterparts. Aberrant DNA methylation occurring during in vitro embryo development is believed to be one of the multifaceted factors which may cause altered gene expression and poor embryo quality. Here, we investigated the genome-wide DNA methylation patterns of in vitro derived embryos using the recently developed Bovine EmbryoGENE Methylation Platform (BEGMP) array (Shojaei Saadi et al. BMC Genomics 2014 15, 451. doi: 10.1186/1471-2164-15-451) to unravel the aberrantly methylated genomic region in in vitro developed embryos. For this, in vitro and in vivo produced blastocysts were produced and used for genome-wide DNA methylation analysis. In vitro blastocysts were produced from oocytes retrieved from ovaries collected from the local abattoir and matured, fertilized, and cultured in vitro using SOF media. The in vivo blastocysts were produced by superovulation and AI of Simmental heifers followed by uterine flushing. Genomic DNA (gDNA) was then isolated from four replicates (each 10 blastocysts) of in vivo and in vitro derived blastocysts using Allprep DNA/RNA micro kit (Qiagen, Valencia, CA, USA) and the gDNA was then fragmented using the MseI enzyme. Following this, MseLig21 and MseLig were ligated to the MseI-digested genomic fragments in the presence of Ligase enzyme. Methyl-sensitive enzymes, HpaII, AciI, and Hinp1I, were used to cleave unmethlayted genomic regions within the MseI-MseI region of the fragmented DNA. The gDNA was subjected to two rounds of ligation-mediated polymerase chain reaction (LM-PCR) amplification. After removal of the adapters, the amplified gDNA samples from in vivo or in vitro groups were labelled either Cy-3 or Cy-5 dyes in dye-swap design using ULS Fluorescent gDNA labelling kit (Kreatech Biotechnology BV, Amsterdam, The Netherlands). Hybridization was performed for 40 h at 65°C. Slides were scanned using Agilent's High-Resolution C Scanner (Agilent Technologies Inc., Santa Clara, CA, USA) and features were extracted with Agilent's Feature Extraction software (Agilent Technologies Inc.). The results have shown that from a total of 414 566 probes harboured by the BEGMP array, 248 453 and 253 147 probes were detected in in vitro and in vivo derived blastocysts, respectively. Data analysis using the linear modelling for microarray (LIMMA) package and R software (The R Project for Statistical Computing, Vienna, Austria) revealed a total of 3434 differentially methylated regions (DMRs; Fold change ≥1.5, P-value <0.05), of which 42 and 58% were hyper- and hypo-methylated, respectively, in in vitro derived blastocysts compared to their in vivo counterparts. The DMRs were found to be localised in the intronic, exonic, promoter, proximal promoter, and distal promoter, and some of the probes did not have nearby genes. In addition, 10.8% of the DMRs were found to be stretched in short, long, or intermediate CpG islands. Thus, this study demonstrated genome-wide dysregulation in the epigenome landscape of in vitro-derived embryos by the time they reach to the blastocysts stage.
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Koutlidis R, Ayrignac X, Pradat PF, Le Forestier N, Léger JM, Salachas F, Maisonobe T, Fournier E, Viala K. Segmental somatosensory-evoked potentials as a diagnostic tool in chronic inflammatory demyelinating polyneuropathies, and other sensory neuropathies. Neurophysiol Clin 2014; 44:267-80. [DOI: 10.1016/j.neucli.2014.08.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2013] [Revised: 08/07/2014] [Accepted: 08/08/2014] [Indexed: 10/24/2022] Open
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Abstract
Species of Pyricularia (magnaporthe-like sexual morphs) are responsible for major diseases on grasses. Pyricularia oryzae (sexual morph Magnaporthe oryzae) is responsible for the major disease of rice called rice blast disease, and foliar diseases of wheat and millet, while Pyricularia grisea (sexual morph Magnaporthe grisea) is responsible for foliar diseases of Digitaria. Magnaporthe salvinii, M. poae and M. rhizophila produce asexual spores that differ from those of Pyricularia sensu stricto that has pyriform, 2-septate conidia produced on conidiophores with sympodial proliferation. Magnaporthe salvinii was recently allocated to Nakataea, while M. poae and M. rhizophila were placed in Magnaporthiopsis. To clarify the taxonomic relationships among species that are magnaporthe- or pyricularia-like in morphology, we analysed phylogenetic relationships among isolates representing a wide range of host plants by using partial DNA sequences of multiple genes such as LSU, ITS, RPB1, actin and calmodulin. Species of Pyricularia s. str. belong to a monophyletic clade that includes all P. oryzae/P. grisea isolates tested, defining the Pyriculariaceae, which is sister to the Ophioceraceae, representing two novel families. These clades are clearly distinct from species belonging to the Gaeumannomyces pro parte/Magnaporthiopsis/Nakataea generic complex that are monophyletic and define the Magnaporthaceae. A few magnaporthe- and pyricularia-like species are unrelated to Magnaporthaceae and Pyriculariaceae. Pyricularia oryzae/P. grisea isolates cluster into two related clades. Host plants such as Eleusine, Oryza, Setaria or Triticum were exclusively infected by isolates from P. oryzae, while some host plant such as Cenchrus, Echinochloa, Lolium, Pennisetum or Zingiber were infected by different Pyricularia species. This demonstrates that host range cannot be used as taxonomic criterion without extensive pathotyping. Our results also show that the typical pyriform, 2-septate conidium morphology of P. grisea/P. oryzae is restricted to Pyricularia and Neopyricularia, while most other genera have obclavate to more ellipsoid 2-septate conidia. Some related genera (Deightoniella, Macgarvieomyces) have evolved 1-septate conidia. Therefore, conidium morphology cannot be used as taxonomic criterion at generic level without phylogenetic data. We also identified 10 novel genera, and seven novel species. A re-evaluation of generic and species concepts within Pyriculariaceae is presented, and novelties are proposed based on morphological and phylogenetic data.
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Affiliation(s)
- S. Klaubauf
- CBS-KNAW Fungal Biodiversity Centre, 3584 CT Utrecht, The Netherlands
- Fungal Molecular Physiology, Utrecht University, Utrecht, The Netherlands
| | - D. Tharreau
- UMR BGPI, CIRAD, Campus International de Baillarguet, F-34398 Montpellier, France
| | - E. Fournier
- UMR BGPI, INRA, Campus International de Baillarguet, F-34398 Montpellier, France
| | - J.Z. Groenewald
- CBS-KNAW Fungal Biodiversity Centre, 3584 CT Utrecht, The Netherlands
| | - P.W. Crous
- CBS-KNAW Fungal Biodiversity Centre, 3584 CT Utrecht, The Netherlands
- Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria 0002, South Africa
- Wageningen University and Research Centre (WUR), Laboratory of Phytopathology, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - R.P. de Vries
- CBS-KNAW Fungal Biodiversity Centre, 3584 CT Utrecht, The Netherlands
- Fungal Molecular Physiology, Utrecht University, Utrecht, The Netherlands
| | - M.-H. Lebrun
- UR1290 INRA BIOGER-CPP, Campus AgroParisTech, F-78850 Thiverval-Grignon, France
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Dobbs KB, Gagné D, Fournier E, Dufort I, Robert C, Block J, Sirard MA, Bonilla L, Ealy AD, Hansen PJ. 93 SEX-SPECIFIC DEVELOPMENTAL PROGRAMMING OF THE BOVINE EMBRYO BY COLONY STIMULATING FACTOR 2 (CSF2). Reprod Fertil Dev 2014. [DOI: 10.1071/rdv26n1ab93] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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
Competence of the bovine embryo to establish pregnancy can be enhanced by treatment with colony stimulating factor 2 (CSF2) from Days 5 to 7 post-insemination. The mechanism is unknown but could involve developmental reprogramming. Here, we questioned whether treatment with CSF2 from Days 5 to 7 alters growth, interferon-τ (IFNT) secretion, and the methylome of extra-embryonic membranes (EEM) at Day 15. In vitro-produced embryos were treated with either 0 or 10 ng mL–1 bovine CSF2 from Days 5 to 7. Expanded blastocysts were transferred into synchronized recipients. On Day 15, conceptuses were recovered by flushing the uterus and sex determined by PCR (n = 4 males and 4 females per treatment). Statistical analysis of IFNT and length was performed using analysis of variance with the general linear models procedure of SAS (SAS Institute Inc., Cary, NC, USA). There was a sex × treatment interaction for conceptus length (P < 0.003) and IFNT in uterine flushing (P < 0.05) (as determined by antiviral activity). CSF2 increased length in males (least squares means ± s.e.m.: 93 ± 19 mm v. 20 ± 19 mm) and decreased length in females (22 ± 19 mm v. 103 ± 19). Similarly, CSF2 increased IFNT in males (45 483 ± 22 615 IU mL–1 v. –2536.27 ± 13 385 IU mL–1) and decreased IFNT in females (–14 012 ± 13 642 IU mL–1 v. 35 404 ± 7514.91 IU mL–1). The EmbryoGENE DNA Methylation Array (Edmonton, AB, Canada) was used to assess CSF2 effects at 418 805 positions across the genome in a subset of EEM (n = 2 for vehicle and 4 for CSF2 in males; n = 3 for vehicle and n = 3 for CSF2 in females). CSF2 caused hypermethylation for 9842 probes in males and 6227 probes in females and hypomethylation for 9322 probes in males and 3292 probes in females. An analysis was conducted to evaluate if clusters of differentially-methylated probes were non-randomly distributed spatially in 5 Mb regions of individual chromosomes using a 500-kb moving window. Statistical significance was determined using chi-squared tests for each 500-kb window. Differential methylation was not uniformly distributed but rather there were regions or hyper- and hypomethylation that varied with sex. The most common situation was where a region was differentially methylated in one sex but not the other. In some cases, a region was differentially methylated in opposite directions for males and females. For example, a region of BTA1 between positions 67 Mb–77.5 Mb contained 1632 probes, of which 59 probes were hypo-methylated in males and 35 were hypermethylated in females. In conclusion, changes in developmental programming of the bovine embryo caused by CSF2 occur in a sex-specific manner. This result suggests a possible mechanism by which environmental effects on the female affect male embryos differently than female embryos.
Support was provided by U.S. Department of Agriculture (USDA) National Institute of Food and Agriculture (NIFA) grant 2011-67015-30688.
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Laresche C, Fournier E, Dupond AS, Woronoff AS, Drobacheff-Thiébaut MC, Pelletier F, Humbert P, Aubin F. Étude épidémiologique rétrospective descriptive de la maladie de Kaposi dans le Doubs sur la période 1977 à 2009. Ann Dermatol Venereol 2013. [DOI: 10.1016/j.annder.2013.09.257] [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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Grange F, Woronoff A, Bera R, Colomb M, Lavole B, Fournier E, Arnold F, Barbe C. Efficacité d’une campagne de formation des médecins généralistes au diagnostic précoce du mélanome : étude pilote en Champagne-Ardenne. Ann Dermatol Venereol 2013. [DOI: 10.1016/j.annder.2013.09.094] [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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Terrien E, Woronoff AS, Lacour B, Fournier E, Champenois V, Tillier C. Investigation d’une suspicion d’agrégat de tumeurs cérébrales cancéreuses chez des enfants, département du Doubs, France, octobre 2012. Rev Epidemiol Sante Publique 2013. [DOI: 10.1016/j.respe.2013.07.332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Eymard B, Stojkovic T, Sternberg D, Richard P, Nicole S, Fournier E, Béhin A, Laforêt P, Servais L, Romero N, Fardeau M, Hantaï D. [Congenital myasthenic syndromes: difficulties in the diagnosis, course and prognosis, and therapy--The French National Congenital Myasthenic Syndrome Network experience]. Rev Neurol (Paris) 2013; 169 Suppl 1:S45-55. [PMID: 23452772 DOI: 10.1016/s0035-3787(13)70060-2] [Citation(s) in RCA: 18] [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] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Congenital myasthenic syndromes (CMS) are a heterogeneous group of disorders caused by genetic defects affecting neuromuscular transmission and leading to muscle weakness accentuated by exertion. Three different aspects have been investigated by members of the national French CMS Network: the difficulties in making a proper diagnosis; the course and long-term prognosis; and the response to therapy, especially for CMS that do not respond to cholinesterase inhibitors. CMS diagnosis is late in most cases because of confusion with other entities such as: congenital myopathies, due to the frequent presentation in patients of myopathies such as permanent muscle weakness, atrophy and scoliosis, and the abnormalities of internal structure, diameter and distribution of fibers (type I predominance, type II atrophy) seen on biopsy; seronegative autoimmune myasthenia gravis, when CMS is of late onset; and metabolic myopathy, with the presence of lipidosis in muscle. The long-term prognosis of CMS was studied in a series of 79 patients recruited with the following gene mutations: CHRNA; CHRNE; DOK7; COLQ; RAPSN; AGRN; and MUSK. Disease-course patterns (progressive worsening, exacerbation, stability, improvement) could be variable throughout life in a given patient. DOK7 patients had the most severe disease course with progressive worsening: of the eight wheelchair-bound and ventilated patients, six had mutations of this gene. Pregnancy was a frequent cause of exacerbation. Anticholinesterase agents are the first-line therapy for CMS patients, except for cases of slow-channel CMS, COLQ and DOK7. In our experience, 3,4-DAP was a useful complement for several patients harboring CMS with AChR loss or RAPSN gene mutations. Ephedrine was given to 18 patients (eight DOK7, five COLQ, four AGRN and one RAPSN). Tolerability was good. Therapeutic responses were encouraging even in the most severely affected patients, particularly with DOK7 and COLQ. Salbutamol was a good alternative in one patient who was allergic to ephedrine.
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Affiliation(s)
- B Eymard
- Centre de référence des affections neuromusculaires Paris-Est, service de Neurologie 2, Institut de Myologie, Hôpital de la Pitié-Salpêtrière, 47 bd de l'Hôpital, 75013 Paris, France.
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Fournier E. [Conduction block: a notion to let through]. Rev Neurol (Paris) 2012; 168:952-9. [PMID: 23107884 DOI: 10.1016/j.neurol.2012.05.016] [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] [Received: 04/02/2012] [Revised: 05/22/2012] [Accepted: 05/25/2012] [Indexed: 10/27/2022]
Abstract
Historical study of electrodiagnosis indicates that nerve conduction block is an old notion, used as early as the second century by Galien and then early in the 19th by physiologists such as Müller and Mateucci. Although introduced into the field of human pathology by Mitchell in 1872, who used it to study nerve injuries, and then by Erb in 1874 to study radial palsy, the contribution of nerve conduction blocks to electrodiagnosis was not exploited until the 1980s. At that time, attempts to improve early diagnosis of Guillain-Barré syndrome showed that among the electrophysiological consequences of demyelination, conduction block was the most appropriate to account for the paralysis. At the same time, descriptions of neuropathies characterized by conduction blocks led to considering conduction block as a major electrophysiological sign. Why was it so difficult for this sign to be retained for electrodiagnosis? Since the notion is not always associated with anatomical lesions, it doesn't fit easily into anatomoclinical reasoning, but has to be thought of in functional terms. Understanding how an uninjured axon could fail to conduct action potentials leads to an examination of the intimate consequences of demyelinations and axonal dysfunctions. But some of the difficulty encountered in adding this new old sign to the armamentarium of electrophysiological diagnosis was related to the technical precautions required to individualize a block. Several pitfalls have to be avoided if a conduction block is to be afforded real diagnostic value. Similar precautions and discussions are also needed to establish an opposing sign, the "excitability block" or "inverse block".
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Affiliation(s)
- E Fournier
- Département de neurophysiologie clinique, groupe hospitalier Pitié-Salpêtrière, 47 boulevard de l'Hôpital, Paris, France.
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Brel V, Créancier L, Marionneau-Brossard M, Offrete V, Verdier J, Andre K, Fournier E, Kruczynski A, Guilbaud N, Annereau J. 285 Antiproliferative Activity of F, a Novel Polyamine-vectorized Drug, on Resistant Cancer Cells. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)70980-2] [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: 11/28/2022]
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Fournier E. Application des principes de la toxicologie aux faibles niveaux d'amiantes. Med Sci (Paris) 2012. [DOI: 10.4267/10608/391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Psimaras D, Lenglet T, Maisonobe T, Viala K, Fournier E, Bouche P. Monocenter Clinical and Neurophysiological Study of 231 Patients with Peroneal Neuropathy (P04.024). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p04.024] [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: 11/15/2022] Open
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Mondou E, Dufort I, Gohin M, Fournier E, Sirard MA. Analysis of microRNAs and their precursors in bovine early embryonic development. Mol Hum Reprod 2012; 18:425-34. [PMID: 22491901 DOI: 10.1093/molehr/gas015] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In animals, the maternal-to-embryonic transition (MET) occurs in the first days of early development and involves the degradation of maternal transcripts that have been stored during oogenesis. Moreover, precise and specific control mechanisms govern the adequate synchronization of the MET events to promote the activation of the embryonic genome. These mechanisms are not well understood, but it is believed that microRNAs (miRNAs) could be one of the mechanisms involved. After a microarray screening study, we analysed the expression of specific miRNA during oocyte maturation and early embryo development until preimplantation stages. Two differentially expressed candidates were selected for further analysis. Mature and precursor forms of miR-21 and miR-130a were quantified by qRT-PCR in pools of 20 oocytes at GV (germinal vesicle), GV breakdown and metaphase II stages as well as in pools of embryos at the 2-cell, 4-cell, 8-cell and blastocyst stages. The results showed a linear increase during the 1-8 cell stage for the mature forms of miR-130a and miR-21 (P < 0.05 and P < 0.003, respectively) and for the precursor form of miR-130a (P < 0.002). To see if this increase was due to minor transcriptional activity, 2-cell embryos were exposed to α-amanitin for 30-34 h. Results showed a significant decrease in miR-21, pre-miR-21, miR-130a and SRFS3 in α-amanitin-treated embryos (P < 0.05). Considering the potential regulatory role of these miRNA, the bovine genome was screened to identify putative targets with a 3'UTR exact seed match. This study suggests that miRNAs could be important players in the MET, as expression profiles suggest a potential regulation role during early development steps.
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Affiliation(s)
- E Mondou
- Centre de recherche en biologie de la reproduction, Faculté des sciences de l'agriculture et de l'alimentation, Département des Sciences Animales, INAF, Pavillon des services, Université Laval, QC, Canada G1V 0A6
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Rajabally YA, Lagarde J, Cassereau J, Viala K, Fournier E, Nicolas G. A European multicentre reappraisal of distal compound muscle action potential duration in chronic inflammatory demyelinating polyneuropathy. Eur J Neurol 2011; 19:638-42. [DOI: 10.1111/j.1468-1331.2011.03605.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Wargon I, Richard P, Kuntzer T, Nafissi S, Gaudon K, Sternberg D, Fournier E, Gevin A, Eymard B, Stojkovic T. P5.17 Congenital Myasthenic Syndromes with COLQ mutations: Long term follow-up. Neuromuscul Disord 2011. [DOI: 10.1016/j.nmd.2011.06.1046] [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: 11/27/2022]
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Albert T, Leclercq C, Carles A, Fournier E, Vincenti P, Regnier S, Floris L. Evaluation of the long-term results of functional surgery of the upper limbs in tetraplegic individuals. Ann Phys Rehabil Med 2011. [DOI: 10.1016/j.rehab.2011.07.658] [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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Bauduin H, Servais L, Richard P, Sternberg D, Fournier E, Laforet P, Behin A, Eymard B, Stojkovic T. P5.16 Pregnancy outcome in congenital myasthenic syndromes. Neuromuscul Disord 2011. [DOI: 10.1016/j.nmd.2011.06.1045] [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]
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Villars M, Fournier E, Richard F. Identification of material parameters of cartilage for hip joint mechanical model. Comput Methods Biomech Biomed Engin 2011. [DOI: 10.1080/10255842.2011.595217] [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]
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Villars M, Fournier E, Richard F, Thibaud S. Identification of geometrical parameters of femoral heads for hip joint mechanical model. Comput Methods Biomech Biomed Engin 2011. [DOI: 10.1080/10255842.2011.595215] [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]
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Fournier E, Fournier C, Christophe V, Reich M, Villet S, Gamblin V, Hoguet D, Rodrigues I, Neu J, Clisant S, Penel N. Patients (pts) accessible to interview in palliative care unit: Analysis of inherent biases. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e19734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Larue S, Bombelli F, Viala K, Neil J, Maisonobe T, Bouche P, Musset L, Fournier E, Léger JM. Non-anti-MAG DADS neuropathy as a variant of CIDP: clinical, electrophysiological, laboratory features and response to treatment in 10 cases. Eur J Neurol 2010; 18:899-905. [PMID: 21199182 DOI: 10.1111/j.1468-1331.2010.03312.x] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND PURPOSE Some patients within the spectrum of chronic inflammatory demyelinating polyradiculoneuropathies (CIDP) have distal acquired demyelinating symmetric (DADS) neuropathy, usually associated with anti-myelin-associated-glycoprotein (MAG) IgM monoclonal gammopathy. The aim of this retrospective study was to investigate patients with DADS neuropathy without anti-MAG antibodies, and study their response to immunotherapy. METHODS Patients were selected on the basis of (i) 'Definite CIDP' according to the EFNS/PNS Guideline criteria, (ii) The presence of disproportionately prolonged motor latencies resulting in a terminal latency index (TLI) ≤ 0.25 in at least two motor nerves and (iii) The absence of anti-MAG antibodies on ELISA. Response to immunotherapy was defined as persistent improvement by at least one point on the INCAT disability score. RESULTS Data from 146 CIDP patients were analysed, and 10 patients were included. Six had clinically pure sensory neuropathy, and four had sensorimotor neuropathy. Ataxia was present in nine patients, generalized areflexia in seven and postural tremor in two. Five of the 10 patients had abnormal sensory potentials only in the upper limbs. An associated condition was found in nine patients: two chronic lymphocytic leukaemias, four IgG monoclonal gammopathies (one associated with non-Hodgkin's lymphoma) and two IgM monoclonal gammopathies of unknown significance. Patients were mostly improved with intravenous immunoglobulin (IVIg), corticosteroids, plasma exchanges, or a combination thereof. CONCLUSION DADS neuropathy without anti-MAG antibodies is more likely to be considered a variant of CIDP. In addition, such patients should be systematically investigated for an associated haematological or immunological condition.
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Affiliation(s)
- S Larue
- Centre de Référence Maladies Neuromusculaires Rares, Hôpital Pitié-Salpêtrière and Université Paris VI, Paris, France
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Vivot A, Colombani F, Trouette H, Colonna M, Fournier E, Leux C, Coureau G, Salamon R, Savès M, Nicolescu-Catargi B. R128 – Oral Surincidence des carcinomes thyroïdiens en Gironde : comparaison de la taille des tumeurs entre différents registres de cancer français. Bull Cancer 2010. [DOI: 10.1016/s0007-4551(15)31048-1] [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: 10/23/2022]
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