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Vondracek P, Panek R, Hron M, Havlicek J, Weinzettl V, Todd T, Tskhakaya D, Cunningham G, Hacek P, Hromadka J, Junek P, Krbec J, Patel N, Sestak D, Varju J, Adamek J, Balazsova M, Balner V, Barton P, Bielecki J, Bilkova P, Błocki J, Bocian D, Bogar K, Bogar O, Boocz P, Borodkina I, Brooks A, Bohm P, Burant J, Casolari A, Cavalier J, Chappuis P, Dejarnac R, Dimitrova M, Dudak M, Duran I, Ellis R, Entler S, Fang J, Farnik M, Ficker O, Fridrich D, Fukova S, Gerardin J, Hanak I, Havranek A, Herrmann A, Horacek J, Hronova O, Imrisek M, Isernia N, Jaulmes F, Jerab M, Kindl V, Komm M, Kovarik K, Kral M, Kripner L, Macusova E, Majer T, Markovic T, Matveeva E, Mikszuta-Michalik K, Mohelnik M, Mysiura I, Naydenkova D, Nemec I, Ortwein R, Patocka K, Peterka M, Podolnik A, Prochazka F, Prevratil J, Reboun J, Scalera V, Scholz M, Svoboda J, Swierblewski J, Sos M, Tadros M, Titus P, Tomes M, Torres A, Tracz G, Turjanica P, Varavin M, Veselovsky V, Villone F, Wąchal P, Yanovskiy V, Zadvitskiy G, Zajac J, Zak A, Zaloga D, Zelda J, Zhang H. Preliminary design of the COMPASS upgrade tokamak. Fusion Engineering and Design 2021. [DOI: 10.1016/j.fusengdes.2021.112490] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Firdaouss M, Chappuis P, Gazzotti S, Lipa M, Portafaix C, Diez M. Design and manufacturing of bulk tungsten tiles for WEST outer limiter. Fusion Engineering and Design 2020. [DOI: 10.1016/j.fusengdes.2020.112000] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Friedlaender A, Vuillemier A, Viassolo V, Ayme A, De Talhouet S, Combes JD, Peron J, Bodmer A, Giraud S, Buisson A, Bonadona V, Gauchat-Bouchardy I, Tredan O, Chappuis P, Labidi-Galy S. BRCA1/BRCA2 germline mutations and chemotherapy-related hematological toxicity in breast cancer patients. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy270.233] [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
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Chappuis P, Duru G, Marchal O, Girier P, Dalle S, Thomas L. Dermoscopy, a useful tool for general practitioners in melanoma screening: a nationwide survey. Br J Dermatol 2016; 175:744-50. [PMID: 26914613 DOI: 10.1111/bjd.14495] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/15/2016] [Indexed: 11/30/2022]
Abstract
BACKGROUND Dermoscopy improves diagnostic accuracy in melanoma, as shown by several meta-analyses. Although it is used by general practitioners (GPs) in Australia, Canada and Italy, no published data on this topic are available in France. OBJECTIVES To review the opinions and use of dermoscopy by GPs in France and to understand their practice of skin examination. METHODS We designed a descriptive and cross-sectional survey and conducted it between 26 November and 26 December 2014. An anonymous, multiple-choice questionnaire about the demographic characteristics, skin examination modalities and use and training in dermoscopy was sent to 4057 GPs in four large regions of France. Pearson, χ(2) , Student, Welch and Fisher tests were used for cross-tabulation statistical analysis. RESULTS Only 8% of respondents had access to a dermoscope; most were male practitioners and aged > 50 years. Dermoscopy increased self-confidence in analysing pigmented lesions (P = 0·004), and dermoscopy users referred fewer patients to dermatologists. The number of biopsies was reduced in the dermoscopy users group (P = 0·004). In total, 425 questionnaires were returned and analysed. Dermoscopy users took more time to evaluate a single pigmented lesion (P = 0·015). Only 16·9% of physicians declared having received some training on dermoscopy, yet this number reached 47% for those owning a dermoscope. Their training was mostly short and recent. Overall 29·2% of the respondents said the main advantage was to reduce the number of referrals to the dermatologists (P = 0·004), while its main disadvantage was the necessity of training (54·6%). Our responders declared they could spend seven working days on a dermoscopy training course. CONCLUSIONS Our study demonstrates positive opinions regarding dermoscopy, despite a minority of French GPs using this technique in the areas surveyed. The need for formal training appears to be the main limitation to wider use. Appropriate and specifically designed training programmes should be offered.
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Affiliation(s)
- P Chappuis
- Department of General Medicine, Claude Bernard Lyon 1 University, 43 Boulevard 11 Novembre, 1918 BP 761, 69622, Villeurbanne Cedex, France
| | - G Duru
- Department of Mathematics, Claude Bernard Lyon 1 University, 43 Boulevard 11 Novembre, 1918 BP 761, 69622, Villeurbanne Cedex, France
| | - O Marchal
- Lyon University, Institute Camille Jordan, UMR 5208, Université Jean Monnet, Lyon, France
| | - P Girier
- Department of General Medicine, Claude Bernard Lyon 1 University, 43 Boulevard 11 Novembre, 1918 BP 761, 69622, Villeurbanne Cedex, France
| | - S Dalle
- Dermatology Department, Centre Hospitalier Lyon-Sud, Hospices Civils de Lyon, 69495, Pierre Bénite Cedex, France.,INSERM U1052, CNRS UMR5286, Lyon Cancer Research Center, Lyon, France
| | - L Thomas
- Dermatology Department, Centre Hospitalier Lyon-Sud, Hospices Civils de Lyon, 69495, Pierre Bénite Cedex, France. .,INSERM U1052, CNRS UMR5286, Lyon Cancer Research Center, Lyon, France.
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Cicero T, Jimenez M, D’Amico G, Pou JA, Dellopoulos G, Alvaro E, Cardenes S, Banetta S, Bellin B, Zacchia F, Calcagno B, Chappuis P, Gicquel S, Mitteau R, Raffray R. Progress in the design of Normal Heat Flux First Wall panels for ITER. Fusion Engineering and Design 2015. [DOI: 10.1016/j.fusengdes.2015.01.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Durigova A, Tsantoulis P, Lyle R, Borel C, Fioretta G, Dieterich B, Chappuis P. Genomic Profile of Early Stage Node-Negative Luminal Breast Cancer Associated with Short Disease-Specific Survival. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu327.31] [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: 11/12/2022] Open
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Trocello JM, El Balkhi S, Woimant F, Girardot-Tinant N, Chappuis P, Lloyd C, Poupon J. Relative exchangeable copper: a promising tool for family screening in Wilson disease. Mov Disord 2013; 29:558-62. [PMID: 24375554 DOI: 10.1002/mds.25763] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [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: 05/28/2013] [Revised: 09/17/2013] [Accepted: 10/28/2013] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Family screening is a main step for the diagnosis in Wilson disease. This study was undertaken to evaluate the value of relative exchangeable copper for family screening. METHODS Data from family screening were collected from the French National Center of Reference for Wilson disease. Subjects who were first- or second-degree relatives of the index case underwent clinical examination and biological parameters. RESULTS Of 127 subjects examined, copper abnormalities or low ceruloplasminemia were detected in 21 subjects, corresponding to 5 patients with Wilson disease, 14 heterozygous ATP7B carriers and 2 subjects with no ATP7B mutations. Relative exchangeable copper determination significantly discriminates heterozygous ATP7B carriers and subjects with no ATP7B mutations from WD patients with a cutoff of 15%. CONCLUSIONS Exchangeable copper appears to be a promising tool for family screening in Wilson disease.
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Affiliation(s)
- Jean-Marc Trocello
- Centre national de référence pour la maladie de Wilson, AP-HP, Hôpital Lariboisière, Paris, France
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Trocello JM, Woimant F, El Balkhi S, Guichard JP, Poupon J, Chappuis P, Feillet F. Extensive striatal, cortical, and white matter brain MRI abnormalities in Wilson disease. Neurology 2013; 81:1557. [PMID: 24145882 DOI: 10.1212/wnl.0b013e3182a95883] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Jean-Marc Trocello
- From the French National Reference Centre for Wilson's Disease (J.-M.T., F.W.), Biological Toxicology Laboratory (S.E.B., J.P.), Neuroradiology (J.-P.G.), and Laboratoire de Biochimie et Biologie Moléculaire (P.C.), AP-HP, Hôpital Lariboisière, Paris; and National Reference Centre for Inborn Errors of Metabolism (F.F.), INSERM U954, Nancy, France
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Mitteau R, Calcagno B, Chappuis P, Eaton R, Gicquel S, Chen J, Labusov A, Martin A, Merola M, Raffray R, Ulrickson M, Zacchia F. The design of the ITER first wall panels. Fusion Engineering and Design 2013. [DOI: 10.1016/j.fusengdes.2013.05.030] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Dufernez F, Lachaux A, Chappuis P, De Lumley L, Bost M, Woimant F, Misrahi M, Debray D. Wilson disease in offspring of affected patients: report of four French families. Clin Res Hepatol Gastroenterol 2013; 37:240-5. [PMID: 23567103 DOI: 10.1016/j.clinre.2013.01.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [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: 11/01/2012] [Revised: 12/22/2012] [Accepted: 01/09/2013] [Indexed: 02/04/2023]
Abstract
BACKGROUND Wilson disease (WD) is an autosomal recessive genetic disorder caused by mutations in the ATP7B gene resulting in toxic accumulation of copper mainly in the liver and brain. Early treatment may prevent irreversible tissue damage. AIM We report on four families with an occurrence of WD in two consecutive generations in order to highlight the need for screening offspring of affected parents. RESULTS In all families, one parent was known to be affected with WD. Screening for the disease was not performed in children from two families until occurrence of liver disease in one and of neurological symptoms in the other. In two other families, screening of children as soon as diagnosis was performed in the affected parent allowed a timely rescue of advanced liver disease in one while two affected children were asymptomatic. In three children, diagnosis required direct sequencing of the ATP7B gene. Two novel disease-causing mutations are reported. CONCLUSION Patients with WD should be offered genetic counselling when considering pregnancy and offspring should always be screened for the disease. Diagnostic difficulties based on copper disturbances in asymptomatic children that are obligate carriers of the Wilson gene and the usefulness of molecular diagnosis are discussed.
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Affiliation(s)
- Fabienne Dufernez
- Laboratoire de génétique moléculaire, pharmacogénétique, hormonologie, université Paris Sud, hôpital Bicêtre, AP-HP, 94270 Le Kremlin-Bicêtre, France
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Trocello JM, El Balkhi S, Girardot-Tinant N, Chappuis P, Poupon J, Woimant F. Le cuivre échangeable relatif : un nouvel outil diagnostique pour le dépistage familial de la maladie de Wilson. Rev Neurol (Paris) 2013. [DOI: 10.1016/j.neurol.2013.01.042] [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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Hercend C, Bauvais C, Bollot G, Delacotte N, Chappuis P, Woimant F, Launay JM, Manivet P. Elucidation of the ATP7B N-domain Mg2+-ATP coordination site and its allosteric regulation. PLoS One 2011; 6:e26245. [PMID: 22046264 PMCID: PMC3203118 DOI: 10.1371/journal.pone.0026245] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2011] [Accepted: 09/23/2011] [Indexed: 11/25/2022] Open
Abstract
The diagnostic of orphan genetic disease is often a puzzling task as less attention is paid to the elucidation of the pathophysiology of these rare disorders at the molecular level. We present here a multidisciplinary approach using molecular modeling tools and surface plasmonic resonance to study the function of the ATP7B protein, which is impaired in the Wilson disease. Experimentally validated in silico models allow the elucidation in the Nucleotide binding domain (N-domain) of the Mg2+-ATP coordination site and answer to the controversial role of the Mg2+ ion in the nucleotide binding process. The analysis of protein motions revealed a substantial effect on a long flexible loop branched to the N-domain protein core. We demonstrated the capacity of the loop to disrupt the interaction between Mg2+-ATP complex and the N-domain and propose a role for this loop in the allosteric regulation of the nucleotide binding process.
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Affiliation(s)
- Claude Hercend
- APHP, Hôpital Lariboisière, Service de Biochimie et de Biologie Moléculaire, Paris, France
- INSERM U942, Biomarqueurs et Insuffisance cardiaque, Hôpital Lariboisière, Paris, France
| | - Cyril Bauvais
- Division of Structural Biology, Bioquanta, Paris, France
| | | | | | - Philippe Chappuis
- APHP, Hôpital Lariboisière, Service de Biochimie et de Biologie Moléculaire, Paris, France
| | - France Woimant
- APHP, Hôpital Lariboisière, Service de Neurologie, Paris, France
| | - Jean-Marie Launay
- APHP, Hôpital Lariboisière, Service de Biochimie et de Biologie Moléculaire, Paris, France
- INSERM U942, Biomarqueurs et Insuffisance cardiaque, Hôpital Lariboisière, Paris, France
| | - Philippe Manivet
- APHP, Hôpital Lariboisière, Service de Biochimie et de Biologie Moléculaire, Paris, France
- INSERM U829, SABNP Laboratory, Evry, France
- Université Evry Val-d'Essonne, Evry, France
- * E-mail:
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Trocello JM, Guichard JP, Leyendecker A, Pernon M, Chaine P, El Balkhi S, Poupon J, Chappuis P, Woimant F. Corpus callosum abnormalities in Wilson's disease. J Neurol Neurosurg Psychiatry 2011; 82:1119-21. [PMID: 20660913 DOI: 10.1136/jnnp.2009.204651] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [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: 11/03/2022]
Abstract
INTRODUCTION Wilson's disease (WD) with neurological presentation is associated with brain lesions classically localised in globus pallidus, putamen, thalamus, mesencephalon, pons and dentate nucleus. Lesions of corpus callosum (CC) have not been studied in a broad population of patients with WD. OBJECTIVE Evaluation of the frequency of CC lesions in patients with neurological symptoms related to WD. METHOD The authors included all patients with neurological expression of WD, followed in the French national centre for WD who had a brain MRI between March 2006 and December 2008. The localisation of brain lesions was analysed and the frequency of lesions in CC evaluated. All patients were assessed using the Unified Wilson's Disease Rating Scale. For patients with abnormalities located in CC, a clinical dysconnexion syndrome was investigated. RESULTS Among 81 patients (45 men, mean age: 34.8 years, from 12 to 74 years) with neurological expression, 42% had white-matter lesions on fluid-attenuated inversion recovery MRI. 23.4% of patients presented CC lesions, limited to the posterior part (splenium). The severity of disability estimated by Unified Wilson's Disease Rating Scale was correlated with the presence of CC lesions on MRI. CONCLUSION Abnormalities in CC are not unusual (23.4%). Together with lesions of basal ganglia, CC signal changes should suggest the diagnosis of WD.
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Affiliation(s)
- J M Trocello
- French National Centre of Wilson’s disease, Lariboisière Hospital, Paris, France.
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El Balkhi S, Trocello JM, Poupon J, Chappuis P, Massicot F, Girardot-Tinant N, Woimant F. Relative exchangeable copper: a new highly sensitive and highly specific biomarker for Wilson's disease diagnosis. Clin Chim Acta 2011; 412:2254-60. [PMID: 21878323 DOI: 10.1016/j.cca.2011.08.019] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Revised: 08/05/2011] [Accepted: 08/11/2011] [Indexed: 01/18/2023]
Abstract
Wilson disease (WD) is an autosomal recessive inherited disorder of copper metabolism. Failure to diagnose WD can be dramatic leading to irreversible damages. The molecular genetic analysis of ATP7B gene is the reference test for diagnosis but the number of reported mutations of the ATP7B gene is on the rise. The analysis is cumbersome and requires tedious work. Other clinical and biological tests are proposed but it is often difficult to interpret some patients' results. A rapid and reliable biological test for WD diagnosis is still needed. Analytical reliability of Exchangeable copper (CuEXC) determination procedure is examined by studying the repeatability, the short term stability and stability in frozen serum. Relative exchangeable copper (REC=CuEXC/total copper%) is proposed and evaluated as a new diagnostic test and compared to classic tests used for WD diagnosis. Sixteen new Wilson disease patients were diagnosed in our institution between January 2009 and May 2011. The different biological tests used for WD diagnosis yielded lower sensitivity and specificity compared to our new biomarker, the REC. We show that REC is an excellent discriminatory tool for the diagnosis of WD offering 100% sensitivity and 100% specificity.
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Affiliation(s)
- Souleiman El Balkhi
- Laboratoire de toxicologie biologique, AP-HP, Hopital Lariboisière, 2, rue Ambroise Paré, 75475 Paris cedex 10, France
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Trocello JM, Chappuis P, El Balkhi S, Poupon J, Leyendecker A, Chaine P, Woimant F. Anomalies du métabolisme du cuivre chez l’adulte. Rev Med Interne 2010; 31:750-6. [DOI: 10.1016/j.revmed.2009.11.012] [Citation(s) in RCA: 13] [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: 05/07/2009] [Revised: 11/02/2009] [Accepted: 11/15/2009] [Indexed: 12/28/2022]
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Rapiti E, Benhamou S, Fioretta G, Verkooijen H, Chappuis P, Neyroud-Caspar I, Castiglione M, Vinh-Hung V, Vlastos G, Bouchardy C. 124 Estrogen receptor-negative tumour and positive family history for breast cancer highly modify the risk of second contra-lateral breast cancer. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)70155-5] [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: 10/19/2022] Open
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Ioki K, Bachmann C, Chappuis P, Cordier JJ, Giraud B, Gribov Y, Jones L, Jun C, Kim B, Kuzmin E, Pathak H, Readman P, Sugihara M, Utin Y, Wang X, Wu S. ITER vacuum vessel: Design review and start of procurement process. Fusion Engineering and Design 2009. [DOI: 10.1016/j.fusengdes.2009.01.070] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Verkooijen H, Deglise C, Rapiti E, Bouchardy C, Usel M, Burri M, Rougemont A, Neyroud-Caspar I, Chappuis P, Vlastos G. Impact of obesity on diagnosis of breast cancer. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)70406-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Deglise C, Bouchardy C, Rapiti E, Usel M, Burri M, Rougemont A, Neyroud-Caspar I, Vlastos G, Chappuis P, Verkooijen H. Impact of obesity on breast cancer treatment. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)70405-1] [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: 10/22/2022] Open
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Mitteau R, Missiaen J, Brustolin P, Ozer O, Durocher A, Ruset C, Lungu C, Courtois X, Dominicy C, Maier H, Grisolia C, Piazza G, Chappuis P. Recent developments toward the use of tungsten as armour material in plasma facing components. Fusion Engineering and Design 2007. [DOI: 10.1016/j.fusengdes.2007.01.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Doceul L, Walker C, Ingesson C, Ciattaglia E, Chappuis P, Portafaix C, Salasca S, Thomas E, Tremblay G, Bruyere C. CEA engineering studies and integration of the ITER diagnostic port plugs. Fusion Engineering and Design 2007. [DOI: 10.1016/j.fusengdes.2007.02.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Arnaud J, Bost M, Vitoux D, Labarère J, Galan P, Faure H, Hercberg S, Bordet JC, Roussel AM, Chappuis P. Effect of Low Dose Antioxidant Vitamin and Trace Element Supplementation on the Urinary Concentrations of Thromboxane and Prostacyclin Metabolites. J Am Coll Nutr 2007; 26:405-11. [PMID: 17914127 DOI: 10.1080/07315724.2007.10719629] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [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: 12/31/2022]
Abstract
OBJECTIVE This trial evaluated the effect of antioxidant supplementation on the urinary excretion of 11-dehydro TXB(2)/2,3 dinor 6 keto PGF(1alpha) ratio, a marker of the pathogenesis of thrombosis and arteriosclerosis. METHODS This study was a randomised, double-blind, placebo-controlled trial involving 186 presumably healthy volunteers. One hundred received a multi-antioxidant supplementation and 86 a placebo for two years. Blood zinc, selenium, beta-carotene, vitamin C and E and urinary excretion of 11-dehydro TXB(2) and 2,3 dinor 6 keto PGF(1alpha) were measured. RESULTS Baseline subject characteristics did not differ between the two groups. Blood zinc, selenium, and beta-carotene concentrations significantly increased between baseline and two years in the multi-antioxidant supplementation group supporting subject compliance (p < 0.05). At two years, the median urinary 11-dehydro TXB(2)/2,3 dinor 6 keto PGF(1alpha) ratio was significantly lower in the multi-antioxidant supplementation group (3.4 versus 2.78, p = 0.015). Serum selenium concentration was the only antioxidant studied that was significantly related to the urinary 11-dehydro TXB(2)/2,3 dinor 6 keto PGF(1alpha) ratio. CONCLUSIONS These results support the hypothesis that a low-dose multi-antioxidant supplementation may contributes to a reduction in platelet activation which is beneficial for cardiovascular function.
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Affiliation(s)
- Josiane Arnaud
- Département de Biologie Intégrée, CHU de Grenoble, BP 217, 38043 Grenoble cedex 9, France.
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Riché FC, Boutron CM, Valleur P, Berton C, Laisné MJ, Launay JM, Chappuis P, Peynet J, Vicaut E, Payen D, Cholley BP. Adrenal response in patients with septic shock of abdominal origin: relationship to survival. Intensive Care Med 2007; 33:1761-6. [PMID: 17618417 DOI: 10.1007/s00134-007-0770-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2007] [Accepted: 06/12/2007] [Indexed: 10/23/2022]
Abstract
OBJECTIVE To evaluate the prognostic value of adrenocortical response to corticotropin in septic shock patients operated on exclusively for an intra-abdominal source of infection. DESIGN AND SETTING Prospective, observational, single-center study in a surgical intensive care unit of a university hospital PATIENTS 118 consecutive septic shock patients undergoing laparotomy or drainage for intra-abdominal infection. MEASUREMENTS AND RESULTS Baseline cortisol (t (0)) and cortisol response to corticotropin test (Delta) were measured during the first 24 h following onset of shock. The relationship between adrenal function test results and survival was analyzed as well as the effect of etomidate anesthesia. Cortisol plasma level at t (0) was higher in nonsurvivors than in survivors (33 +/- 23 vs. 25 +/- 14 microg/dl), but the response to corticotropin test did not differ between these two subgroups. ROC analysis showed threshold values for t (0) (32 microg/dl) and Delta (8 microg/dl) that best discriminated survivors from nonsurvivors in our population. We observed no difference in survival at the end of hospital stay using log rank test when patients were separated according to t (0), Delta, or both. In addition, adrenal function tests and survival did not differ in patients who received etomidate anesthesia (n = 69) during the surgical treatment of their abdominal sepsis. CONCLUSIONS In this cohort of patients with abdominal septic shock baseline cortisol level and the response to corticotropin test did not discriminate survivors from nonsurvivors. No deleterious impact of etomidate anesthesia on adrenal function tests and survival was observed in these patients.
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Affiliation(s)
- Florence C Riché
- Department of Anesthesiology and Intensive Care, Hôpital Lariboisière, AP-HP, Université Paris VII, 2 rue Ambroise Paré, 75010, Paris, France
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Bouchardy C, Fioretta G, Verkooijen HM, Vlastos G, Schaefer P, Delaloye JF, Neyroud-Caspar I, Balmer Majno S, Wespi Y, Forni M, Chappuis P, Sappino AP, Rapiti E. Recent increase of breast cancer incidence among women under the age of forty. Br J Cancer 2007; 96:1743-6. [PMID: 17533391 PMCID: PMC2359920 DOI: 10.1038/sj.bjc.6603783] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Using data from the Geneva Cancer Registry, we found that in 2002–2004, breast cancer incidence in women aged 25–39 years increased by 46.7% per year (95% CI: 7.1–74.0, P=0.015), which surveillance or detection bias may not fully explain.
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Affiliation(s)
- C Bouchardy
- Geneva Cancer Registry, Institute for Social and Preventive Medicine, University of Geneva, 55, bd de la Cluse, 1205 Geneva, Switzerland.
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Idohou-Dossou N, Wade S, Guiro AT, Sarr CS, Diaham B, Cissé D, Beau JP, Chappuis P, Hoffman D, Lemonnier D. Nutritional status of preschool Senegalese children: long-term effects of early severe malnutrition. Br J Nutr 2007; 90:1123-32. [PMID: 14641972 DOI: 10.1079/bjn2003990] [Citation(s) in RCA: 18] [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: 11/11/2022]
Abstract
The prevalence of malnutrition remains high in many developing countries. However, data relating to the long-term effects of severe malnutrition, specifically, serum levels of biochemical indicators of nutritional status, are still scarce in the literature. Hence the present study aimed to investigate the nutritional, biological and growth status of Senegalese preschool children previously hospitalised for severe malnutrition. The study involved twenty-four 7-year-old children who had suffered from marasmus 5 years earlier, twenty-four siblings living in the same household, and nineteen age-matched children living in the centre of Dakar. The siblings were of similar age to the post-marasmic children. Anthropometry, serum biochemical indicators of nutritional status, growth factors, and haematological and mineral parameters were measured. The prevalence of stunting and wasting was the same in the post-marasmic children as in the siblings. Body-fat and fat-free-mass (FFM) deficits in both groups were corroborated by abnormally low concentrations of transthyretin, osteocalcin, insulin-like growth factor (IGF)-1, and insulin-like growth factor-binding protein (IGFBP)-3. FFM was positively and significantly correlated with concentrations of IGF-1 and IGFBP-3. In the post-marasmic children, height for age was also correlated with IGF-1. Of the post-marasmic children, 53 % had Fe-deficiency anaemia, as did 35 % of the siblings and 29 % of the controls. No significant associations were found between the serum concentrations of Ca, Cu, K, Mg, Na, P, Se, Zn and growth retardation. At 5 years after nutritional rehabilitation, the post-marasmic children remained stunted with nutritional indices significantly lower than the control children. However, these children were doing as well as their siblings except for minor infections.
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Affiliation(s)
- Nicole Idohou-Dossou
- Equipe de Nutrition et Alimentation, Laboratoire de Physiologie, Département de Biologie Animale, Faculté des Sciences et Techniques, Université Cheikh Anta Diop de Dakar, Sénégal.
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Casilli F, Tournier I, Sinilnikova OM, Coulet F, Soubrier F, Houdayer C, Hardouin A, Berthet P, Sobol H, Bourdon V, Muller D, Fricker JP, Capoulade-Metay C, Chompret A, Nogues C, Mazoyer S, Chappuis P, Maillet P, Philippe C, Lortholary A, Gesta P, Bézieau S, Toulas C, Gladieff L, Maugard CM, Provencher DM, Dugast C, Delvincourt C, Nguyen TD, Faivre L, Bonadona V, Frébourg T, Lidereau R, Stoppa-Lyonnet D, Tosi M. The contribution of germline rearrangements to the spectrum of BRCA2 mutations. J Med Genet 2007; 43:e49. [PMID: 16950820 PMCID: PMC2564582 DOI: 10.1136/jmg.2005.040212] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [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: 11/03/2022]
Abstract
BACKGROUND Few germline BRCA2 rearrangements have been described compared with the large number of germline rearrangements reported in the BRCA1 gene. However, some BRCA2 rearrangements have been reported in families that included at least one case of male breast cancer. OBJECTIVE To estimate the contribution of large genomic rearrangements to the spectrum of BRCA2 defects. METHODS Quantitative multiplex PCR of short fluorescent fragments (QMPSF) was used to screen the BRCA2 gene for germline rearrangements in highly selected families. QMPSF was previously used to detect heterozygous deletions/duplications in many genes including BRCA1 and BRCA2. RESULTS We selected a subgroup of 194 high risk families with four or more breast cancers with an average age at diagnosis of < or = 50 years, who were recruited through 14 genetic counselling centres in France and one centre in Switzerland. BRCA2 mutations were detected in 18.6% (36 index cases) and BRCA1 mutations in 12.4% (24 index cases) of these families. Of the 134 BRCA1/2 negative index cases in this subgroup, 120 were screened for large rearrangements of BRCA2 using QMPSF. Novel and distinct BRCA2 deletions were detected in three families and their boundaries were determined. We found that genomic rearrangements represent 7.7% (95% confidence interval 0% to 16%) of the BRCA2 mutation spectrum. CONCLUSION The molecular diagnosis of breast cancer predisposition should include screening for BRCA2 rearrangements, at least in families with a high probability of BRCA2 defects.
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Affiliation(s)
- F Casilli
- Inserm U614, IFRMP, Faculty of Medicine, Rouen, France
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27
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Doceul L, Cordier J, Durocher A, Faïsse F, Gargiulo L, Chappuis P. Manufacture, testing and quality assurance of cast stainless steel headers for the CIEL pump limiter of Tore Supra. Fusion Engineering and Design 2007. [DOI: 10.1016/j.fusengdes.2006.05.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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28
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Chappuis P, Callebert J, Quignon V, Woimant F, Laplanche JL. Late neurological presentations of Wilson disease patients in French population and identification of 8 novel mutations in the ATP7B gene. J Trace Elem Med Biol 2007; 21:37-42. [PMID: 17317524 DOI: 10.1016/j.jtemb.2006.11.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2006] [Accepted: 11/12/2006] [Indexed: 01/28/2023]
Abstract
Wilson disease (WD) is an autosomal recessive disorder of copper biliary excretion caused by an impaired function of ATP7B, a metal-transporting P-type ATPase encoded by WD gene. It results in copper accumulation, mostly in liver and brain tissues. Mutation analysis was carried out on 11 WD French unrelated patients presenting a predominant neurological form of this illness. SSCP and dHPLC analysis followed by sequencing of the 21 exons and their flanking introns were performed. Thirteen different mutations in a total of 17, and, among them, 10 novel variants were evidenced. Two deletions (c.654_655delCC and c.1745_1746delTA), 4 missense mutations (p.F763Y, p.G843R, p.D918A and p.L979Q), 1 nonsense mutation (p.Q1200X), 1 splice site mutation (c.1947-1G>C) and 2 intronic silent substitutions (c.2448-25G>T and c.3412+13T>A) were detected. These data extend the mutational spectrum of the disease, already known to be a very heterogeneous genetic disorder. As compared to hepatic manifestations, the phenotypes associated to these mutations confirm that neurological presentations associated with other mutations than p.H1069Q are also often late in their onset. Most of these neurological forms probably correspond to an attenuated impairment of copper metabolism, as compared to hepatic forms of the disease, mostly diagnosed earlier.
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Affiliation(s)
- Philippe Chappuis
- Hôpital Lariboisière, Centre National Référence Bernard Pépin pour la Maladie de Wilson, Service de Biochimie et Biologie Moléculaire, 2, rue A. Paré, 75475 Paris Cedex 10, France.
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29
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Abstract
Wilson disease is an autosomal recessive disorder of copper overload. A principal characteristic of this disease is its wide phenotypic and genotypic variability. Its results from mutations of the ATP 7B gene located on chromosome 13, that encodes a hepatic copper transport protein. More than 300 mutations of this gene have been identified. This protein ensures the transport of copper in the hepatocyte, its incorporation with the apoceruloplasmin and its biliary excretion. The clinical manifestations are heterogeneous as well in their presentation, dominated by the neuropsychiatric and hepatic symptoms, as in the age of the first symptoms. Early recognition and initiation of therapy with chelators or zinc are essential for prognosis. Liver transplantation is indicated in cases with fulminant hepatitis, end-stage liver cirrhosis and should be considered in the therapy resistant neurological forms. A regular follow-up with monitoring of adverse effects of treatment and compliance is essential. Any discontinuation of treatments will involve, within a very variable time, but in constant manner, a reappearance or a reaggravation of the signs. Such relapses are often brutal and can be extremely serious, especially since response to subsequent treatment is often poor.
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30
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Salavy JF, Chappuis P, Lomas P, Riccardo V. Tiles chamfering and power handling of the MK II HD divertor. Fusion Engineering and Design 2005. [DOI: 10.1016/j.fusengdes.2005.06.157] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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31
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Mikol J, Vital C, Wassef M, Chappuis P, Poupon J, Lecharpentier M, Woimant F. Extensive cortico-subcortical lesions in Wilson's disease: clinico-pathological study of two cases. Acta Neuropathol 2005; 110:451-8. [PMID: 16195917 DOI: 10.1007/s00401-005-1061-1] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2005] [Revised: 05/20/2005] [Accepted: 06/21/2005] [Indexed: 11/29/2022]
Abstract
Wilson's disease (WD) with extensive cortico-subcortical lesions represents a rare neuropathological subgroup, the pathogenesis of which is not clearly determined. We report two new cases with identical lesions. In the families of each of the patient, there were mutations in the ATPase7B gene, especially in the family of proband 1, and in the first cousin of proband 2. These cases included massive destruction of the white matter in superior gyri, mostly frontal, extending to the deep cortex with neuronal loss and capillary proliferation. Astrocytes were of Alzheimer type 1 and 2; and type 1 were labeled by anti-metallothionein. Opalski cells were abundant and their macrophagic lineage was confirmed by immunostaining. Among the possible mechanisms proposed, the role of vascular factors and penicillamine treatment could be excluded. Cerebral copper content in white matter and putamen of case 1 was at the same level as in common WD but accumulation of unbound copper in the white matter was a distinctive feature, which suggested a pathological neurotoxic effect.
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Affiliation(s)
- Jacqueline Mikol
- Department of Pathology, Denis Diderot University, Paris, France.
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32
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Chappuis P, Bost M, Misrahi M, Duclos-Vallée JC, Woimant F. [Wilson disease: clinical and biological aspects]. Ann Biol Clin (Paris) 2005; 63:457-66. [PMID: 16230279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2005] [Accepted: 08/08/2005] [Indexed: 05/04/2023]
Abstract
Wilson disease is an autosomal recessive disorder of copper excess. This illness results from mutations of the ATP7B gene (chromosome 13, MIM# 277900). The discovery of the gene allowed a better understanding of cytosolic copper trafficking and its relationship with ceruloplasmin synthesis. Symptomatic patients may present with hepatic, neurologic or psychiatric forms. Clinical and phenotypic evidences provide only presumptive arguments for this disease which can be routinely assessed by molecular analysis. This genetic disease which can be efficiently treated was formerly biologically suspected after a careful but sometimes invasive study of copper metabolism. Genetic advances can now give a definite answer using linkage analysis and research for disease-causing mutations. However, this diagnosis strategy is limited since currently over 320 mutations and 80 polymorphisms have been currently identified.
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Affiliation(s)
- P Chappuis
- Service de biochimie et biologie moléculaire, Hôpital Lariboisière, AP-HP, Paris.
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33
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Verkooijen H, Fioretta G, Chappuis P, Vlastos G, Sappino P, Benhamou S, Bouchardy C. Set-up of a population-based familial breast cancer registry in Geneva Switzerland: Validation of first results. EJC Suppl 2004. [DOI: 10.1016/s1359-6349(04)91053-1] [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: 10/26/2022] Open
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34
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Rey G, Magaud P, Libeyre P, Garin P, Agarici G, Beaumont B, Berger-by G, Bibet P, Chappuis P, Cordier J, Couturier B, Duchateau J, Durocher A, Escourbiac F, Gravil B, Kazarian F, Lipa M, Magne R, Portafaix C, Schlosser J. Spin-off from Euratom-CEA association in fusion magnetic research. Fusion Engineering and Design 2003. [DOI: 10.1016/s0920-3796(03)00179-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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35
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Chappuis P, Damiani C, Guerin C, Hurd F, Loarte A, Lomas P, Lorenz A, Paméla J, Peacock A, Portafaix C, Rapp J, Riccardo V, Rimini F, Saibene G, Salavy J, Sauce Y, Sartori R, Solano E, Thomas E, Thomas P, Tsitrone E, Valeta M. The design of a new JET divertor for high triangularity and high current scenarios. Fusion Engineering and Design 2003. [DOI: 10.1016/s0920-3796(03)00171-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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36
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Merola M, Chappuis P, Escourbiac F, Grattarola M, Jeskanen H, Kauppinen P, Plöchl L, Schedler B, Schlosser J, Smid I, Tähtinen S, Vesprini R, Visca E, Zabernig A. Non-destructive testing of divertor components. Fusion Engineering and Design 2002. [DOI: 10.1016/s0920-3796(02)00155-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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37
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Merola M, Vieider G, Bet M, Bobin Vastra I, Briottet L, Chappuis P, Cheyne K, Dell'Orco G, Duglué D, Duwe R, Erskine S, Escourbiac F, Fèbvre M, Grattarola M, Moreschi F, Orsini A, Pamato R, Petrizzi L, Plöchl L, Riccardi B, Rigal E, Rödig M, Salavy J, Schedler B, Schlosser J, Tähtinen S, Vesprini R, Visca E, Wu C. European achievements for ITER high heat flux components. Fusion Engineering and Design 2001. [DOI: 10.1016/s0920-3796(01)00253-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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38
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Mitteau R, Chappuis P, Martin G, Rosanvallon S. Analysis of an in-service rupture of the inner first wall of tore supra. Fusion Engineering and Design 2001. [DOI: 10.1016/s0920-3796(01)00321-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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39
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Buehler J, Chappuis P, Saffar JL, Tsouderos Y, Vignery A. Strontium ranelate inhibits bone resorption while maintaining bone formation in alveolar bone in monkeys (Macaca fascicularis). Bone 2001; 29:176-9. [PMID: 11502480 DOI: 10.1016/s8756-3282(01)00484-7] [Citation(s) in RCA: 221] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Strontium ranelate (S12911) has previously been shown to stimulate bone formation and inhibit bone resorption in rats. To determine whether strontium ranelate affects normal bone remodeling, we studied the effect of strontium ranelate on alveolar bone in monkeys. Strontium ranelate, at dosages of 100, 275, and 750 mg/kg per day, or vehicle, were given by gavage to 31 normal adult monkeys (Macaca fascicularis) (15 males, 16 females), aged 3-4 years. Treatment for 6 months with strontium ranelate resulted in an increase in plasma strontium concentration. Histomorphometric analyses of indices of bone formation and resorption were determined in standardized areas of alveolar bone. Treatment with strontium ranelate decreased the histomorphometric indices of bone resorption (osteoclast surface and number) with a maximal significant effect at the highest dose tested. In contrast to this inhibitory effect on bone resorption, strontium ranelate maintained bone formation. Although the amount of osteoid tended to increase, strontium ranelate, even at the highest dose, had no deleterious effect on bone mineralization, as evaluated by mineral apposition rate and osteoid thickness. These findings show that strontium ranelate decreases indices of bone resorption while maintaining bone formation in the alveolar bone in monkeys.
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Affiliation(s)
- J Buehler
- Department of Orthopedics and Rehabilitation, Yale University School of Medicine, New Haven, CT 06510, USA
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40
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Rödig M, Akiba M, Chappuis P, Duwe R, Febvre M, Gervash A, Linke J, Litounovsky N, Suzuki S, Wiechers B, Youchison D. Comparison of electron beam test facilities for testing of high heat flux components. Fusion Engineering and Design 2000. [DOI: 10.1016/s0920-3796(00)00219-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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41
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Vieider G, Merola M, Anselmi F, Bonal J, Chappuis P, Dell'Orco G, Duglué D, Duwe R, Erskine S, Escourbiac F, Fèbvre M, Giancarli L, Grattarola M, LeMarois G, Pacher H, Pizzuto A, Plöchl L, Riccardi B, Rödig M, Schlosser J, Salito A, Schedler B, Wu C. European development of prototypes for ITER high heat flux components. Fusion Engineering and Design 2000. [DOI: 10.1016/s0920-3796(00)00238-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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42
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Linke J, Bolt H, Chappuis P, Penkalla H, Scheerer M, Schöpflin K. Brittle destruction of carbon based materials under severe thermal loads. Fusion Engineering and Design 2000. [DOI: 10.1016/s0920-3796(00)00367-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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43
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Lorenzetto P, Cardella A, Chappuis P, Daenner W, Erskine A, Fèbvre M, Hofmann G, Le Gallo P, Stamm H, Tähtinen S. Main achievements of the EU HT test programme of ITER primary wall small scale mock ups. Fusion Engineering and Design 2000. [DOI: 10.1016/s0920-3796(00)00372-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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44
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Andreutti-Zaugg C, Couturier A, Chappuis P, Hutter P. Detection of protein truncating mutations in exons 1-14 of the APC gene using an in vivo fusion protein assay. Mutations in brief no. 214. Online. Hum Mutat 2000; 13:170-1. [PMID: 10094557 DOI: 10.1002/(sici)1098-1004(1999)13:2<170::aid-humu12>3.0.co;2-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
About 80% of the mutations identified to date in the Adenomatous Polyposis Coli (APC) gene have been found in the 5' half of the coding sequence, the vast majority of which (>95%) are nonsense or frameshift mutations that result in the loss of the carboxyl terminus of APC protein. Using a stop codon assay in yeast recently developed by others (Ishioka et al., 1997), we have screened the 5' half of the APC gene for mutations in 7 unrelated families affected with Familial Adenomatous Polyposis. The assay relies on the expression of a yeast reporter gene fused in frame to one of 3 contiguous segments of the APC open reading frame. Here we report on the detection by this assay of 5 germline mutations, 4 of which lie upstream of exon 15, where lesions appear to be sometimes difficult to detect by standard methods.
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Affiliation(s)
- C Andreutti-Zaugg
- Swiss Institute for Experimental Cancer Research (ISREC), Epalinges, Switzerland
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45
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Abstract
The real significance of the level of trace elements copper, zinc and selenium in erythrocytes is still a matter of debate. This review is an evaluation of the potential value of copper, zinc and selenium in red blood cells in physiology, nutrition and pathology, taking into account the other commonly used indices and the analytical difficulty encountered for erythrocyte determinations. The main analytical methods and reference values in erythrocytes are also presented. The literature of the last 3 decades was analyzed. On the basis of these papers, the role of erythrocyte copper in various pathologies should be re-investigated, especially when they include inflammatory processes or hormonal changes. The main interest of zinc determination in red blood cells concerns thyroid pathology. In general, the value of selenium in erythrocytes agrees with selenium in serum and its determination is often unnecessary.
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Affiliation(s)
- D Vitoux
- Laboratory of Biochemistry, Saint-Louis Hospital, Paris, France
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46
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Vieider G, Merola M, Bonal J, Chappuis P, Duglué D, Duwe R, Escourbiac F, Fèbvre M, Giancarli L, Grattarola M, LeMarois G, Pacher H, Pizzuto A, Plöchl L, Riccardi B, Rödig M, Schlosser J, Smid I, Tramier P, Wu C. European development of the ITER divertor target. Fusion Engineering and Design 1999. [DOI: 10.1016/s0920-3796(99)00048-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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47
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Heinimann K, Scott RJ, Chappuis P, Weber W, Müller H, Dobbie Z, Hutter P. N-acetyltransferase 2 influences cancer prevalence in hMLH1/hMSH2 mutation carriers. Cancer Res 1999; 59:3038-40. [PMID: 10397239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
Hereditary nonpolyposis colorectal cancer (HNPCC), an inherited cancer predisposition syndrome, has been associated with germline mutations in DNA mismatch repair (MMR) genes. Because a deficiency in MMR does not predict a specific cancer phenotype, modifying genes may account in part for the variation in disease expression. We determined the N-acetyltransferase 2 (NAT2) genotype in 26 unaffected and 52 cancer-affected hMLH1/hMSH2 mutation carriers coming from 21 Swiss HNPCC families. Slow acetylators were found to be significantly (P < 0.03) more prevalent in the group of affected mutation carriers. Our results suggest a protective effect of the NAT2 rapid acetylator phenotype, an observation that could have implications for genetic counseling and management of MMR gene mutation carriers.
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Affiliation(s)
- K Heinimann
- Research Group Human Genetics, University Hospital, Basel, Switzerland
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48
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Abstract
In this report, the frequency of the G-->A transition polymorphism at nucleotide 5557 in exon 39 of the coding sequence of the gene mutated in ataxia-telangiectasia (ATM) was analysed. The frequency of the A and G alleles was estimated in the general population at 0. 15 and 0.85, respectively. This polymorphism can be identified by single-strand conformation polymorphism (SSCP) and by a simple and rapid Dde I digestion after polymerase chain reaction (PCR)-mediated site directed mutagenesis (PSDM).
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Affiliation(s)
- P Maillet
- Département de Médecine, Division d>>Oncologie, Hôpital Cantonal Universitaire de Genève, 24 rue Micheli-du-Crest, Genève 14, 1211, Switzerland.
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49
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50
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Andreutti‐Zaugg C, Couturier A, Chappuis P, Hutter P. Detection of protein truncating mutations in exons 1‐14 of the APC gene using an in vivo fusion protein assay. Hum Mutat 1999. [DOI: 10.1002/(sici)1098-1004(1999)13:2<170::aid-humu13>3.3.co;2-w] [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: 12/30/2022]
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