1
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Lassalle F, Marmontel O, Zawadzki C, Fretigny M, Bouvagnet P, Vinciguerra C. Recurrent F8
and F9
gene variants result from a founder effect in two large French haemophilia cohorts. Haemophilia 2018; 24:e213-e221. [DOI: 10.1111/hae.13480] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/06/2018] [Indexed: 12/29/2022]
Affiliation(s)
- F. Lassalle
- Centre de Biologie Pathologie; Laboratoire d'Hématologie; Centre Hospitalier Régional Universitaire de Lille; Lille France
| | - O. Marmontel
- Département de Biochimie et Biologie Moléculaire; Centre de Biologie Pathologie Est; Groupe Hospitalier Est; Hospices Civils de Lyon; Bron France
| | - C. Zawadzki
- Centre de Biologie Pathologie; Laboratoire d'Hématologie; Centre Hospitalier Régional Universitaire de Lille; Lille France
| | - M. Fretigny
- Centre de Biologie Pathologie Est; Service d'Hématologie Biologique; Groupe Hospitalier Est; Hospices Civils de Lyon; Bron France
| | - P. Bouvagnet
- Laboratoire de Cardiogénétique; Hospices Civils de Lyon; Université Lyon 1; Lyon France
| | - C. Vinciguerra
- Centre de Biologie Pathologie Est; Service d'Hématologie Biologique; Groupe Hospitalier Est; Hospices Civils de Lyon; Bron France
- Hémostase et Cancer; Université Lyon 1; Lyon France
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2
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Jourdy Y, Chatron N, Fretigny M, Carage ML, Chambost H, Claeyssens-Donadel S, Roussel-Robert V, Negrier C, Sanlaville D, Vinciguerra C. Molecular cytogenetic characterization of five F8 complex rearrangements: utility for haemophilia A genetic counselling. Haemophilia 2017; 23:e316-e323. [PMID: 28475226 DOI: 10.1111/hae.13218] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/21/2017] [Indexed: 12/18/2022]
Abstract
BACKGROUND Genomic inversions are usually balanced, but unusual patterns have been described in haemophilia A (HA) patients for intron 22 (Inv22) and intron 1 (Inv1) inversions leading to the hypothesis of more complex rearrangements involving deletions or duplications. AIM To characterize five abnormal patterns either in Southern blot and long-range PCR for Inv22 or in PCR for Inv1. MATERIALS AND METHODS All patients were studied using cytogenetic microarray analysis (CMA). RESULTS In all cases, CMA analysis found that each inversion was associated with complex Xq28 rearrangement. In three patients, CMA analysis showed large duplication ranging from 230 to 1302 kb and encompassing a various number of contiguous genes among which RAB39B. RAB39B duplication is a strong candidate gene for X-linked intellectual disability (XLID). Surprisingly, none of the severe HA patients with RAB39B duplication reported in this study or in the literature exhibited XLID. We hypothesise that F8 complex rearrangement down regulated RAB39B expression. In the two remaining patients, CMA analysis found Xq28 large deletion (from 285 to 522 kb). Moyamoya syndrome was strongly suspected in one of them who carried BRCC3 deletion. CONCLUSION Because several F8 neighbouring genes are associated with other pathologies such as XLID and cardiovascular disease, all HA patients where complex Xq28 rearrangement was suspected should be referred to a geneticist for possible utility of a pangenomic study. Such investigation should be carefully considered in genetic counselling in female carriers to assess the risk of transmitting severe HA with a "contiguous gene syndrome".
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Affiliation(s)
- Y Jourdy
- Hospices Civils de Lyon, Hôpital Edouard Herriot, Service d'hématologie Biologique, Lyon, France.,Univ Lyon, EA 4609 Hémostase et cancer, Université Claude Bernard Lyon 1, Lyon, France
| | - N Chatron
- Hospices Civils de Lyon, Groupe Hospitalier Est, Laboratoire de Cytogénétique Constitutionnelle, Bron, France.,Univ Lyon, CRNL, équipe GENDEV INSERM U1028, CNRS UMR5292, Université Claude Bernard Lyon 1, Lyon, France
| | - M Fretigny
- Hospices Civils de Lyon, Hôpital Edouard Herriot, Service d'hématologie Biologique, Lyon, France
| | - M L Carage
- Hospices Civils de Lyon, Hôpital Edouard Herriot, Service d'hématologie Biologique, Lyon, France
| | - H Chambost
- Centre de traitement de l'hémophilie, CHU La Timone, Marseille, France
| | | | - V Roussel-Robert
- Centre de traitement de l'hémophilie, Hôpital Cochin, Paris, France
| | - C Negrier
- Hospices Civils de Lyon, Hôpital Edouard Herriot, Service d'hématologie Biologique, Lyon, France.,Univ Lyon, EA 4609 Hémostase et cancer, Université Claude Bernard Lyon 1, Lyon, France
| | - D Sanlaville
- Hospices Civils de Lyon, Groupe Hospitalier Est, Laboratoire de Cytogénétique Constitutionnelle, Bron, France.,Univ Lyon, CRNL, équipe GENDEV INSERM U1028, CNRS UMR5292, Université Claude Bernard Lyon 1, Lyon, France
| | - C Vinciguerra
- Hospices Civils de Lyon, Hôpital Edouard Herriot, Service d'hématologie Biologique, Lyon, France.,Univ Lyon, EA 4609 Hémostase et cancer, Université Claude Bernard Lyon 1, Lyon, France
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3
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Jourdy Y, Chatron N, Carage ML, Fretigny M, Meunier S, Zawadzki C, Gay V, Negrier C, Sanlaville D, Vinciguerra C. Study of six patients with complete F9 deletion characterized by cytogenetic microarray: role of the SOX3 gene in intellectual disability. J Thromb Haemost 2016; 14:1988-1993. [PMID: 27477789 DOI: 10.1111/jth.13430] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [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: 02/16/2016] [Indexed: 11/26/2022]
Abstract
Essentials Some hemophilia B (HB) patients with complete F9 deletion present with intellectual disability (ID). We delineate six F9 complete deletions and investigate genotype/phenotype correlation. We identify SOX3 as a candidate gene for ID, acting through haploinsufficiency, in HB patients. All complete F9 deletions in ID patients should be explored with cytogenetic microarrays. SUMMARY Background Large deletions encompassing both the complete F9 gene and contiguous genes have been detected in patients with severe hemophilia B (HB). Some of these patients present other clinical features, such as intellectual disability (ID). Objectives/Methods In this study, we characterized six unrelated large deletions encompassing F9, by cytogenetic microarray analysis (CMA), to investigate genotype/phenotype correlation. Results Five of the six patients included in this study presented with ID associated with HB. CMA showed that the six large deletions, ranging in size from approximately 933 kb to 9.19 Mb, were located within the Xq26.3 to Xq28 bands. In all cases, the complete deletion of F9 was associated with the loss of various neighboring genes (5-28 other genes). The smallest region of overlap for ID was a 1.26-Mb region encompassing seven OMIM genes (LOC389895, SOX3, LINC00632, CDR1, SPANXF1, LDOC1, SPANXC). SOX3, our candidate gene for ID, encodes an early transcription factor involved in pituitary development. All of the patients studied who had both HB and ID had deletion of the SOX3 gene. Conclusions All HB patients with an atypical phenotype, especially if complete deletion of F9 is suspected, should be referred to a geneticist for possible pangenomic assessment, because haploinsufficiency of genes flanking F9, such as SOX3 in particular, may result in a broader phenotype, including ID. Such assessment would be of particular value for the genetic counseling of female carriers with F9 deletions, as it would facilitate analysis of the risk of transmitting HB associated with ID.
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Affiliation(s)
- Y Jourdy
- Hospices Civils de Lyon, Hôpital Edouard Herriot, Service d'Hématologie Biologique, Lyon, France
- EAM 4174 Hémostase, Inflammation et Sepsis, Université Claude Bernard Lyon 1, Lyon, France
| | - N Chatron
- Hospices Civils de Lyon, Groupe Hospitalier Est, Laboratoire de Cytogénétique Constitutionnelle, Bron, France
| | - M-L Carage
- Hospices Civils de Lyon, Hôpital Edouard Herriot, Service d'Hématologie Biologique, Lyon, France
| | - M Fretigny
- Hospices Civils de Lyon, Hôpital Edouard Herriot, Service d'Hématologie Biologique, Lyon, France
| | - S Meunier
- Hospices Civils de Lyon, Hôpital Cardiologique Louis Pradel, Unité d'Hémostase Clinique, Bron, France
| | - C Zawadzki
- Laboratoire d'Hématologie, CHRU de Lille, Lille, France
| | - V Gay
- Centre de Traitement de l'Hémophilie, CHG, Chambery, France
| | - C Negrier
- Hospices Civils de Lyon, Hôpital Edouard Herriot, Service d'Hématologie Biologique, Lyon, France
- EAM 4174 Hémostase, Inflammation et Sepsis, Université Claude Bernard Lyon 1, Lyon, France
- Hospices Civils de Lyon, Hôpital Cardiologique Louis Pradel, Unité d'Hémostase Clinique, Bron, France
| | - D Sanlaville
- Hospices Civils de Lyon, Groupe Hospitalier Est, Laboratoire de Cytogénétique Constitutionnelle, Bron, France
- CRN, équipe TIGER, INSERM U1028, CNRS UMR5292, Université Claude Bernard, Lyon1, France
| | - C Vinciguerra
- Hospices Civils de Lyon, Hôpital Edouard Herriot, Service d'Hématologie Biologique, Lyon, France.
- EAM 4174 Hémostase, Inflammation et Sepsis, Université Claude Bernard Lyon 1, Lyon, France.
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4
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Rugeri L, Fretigny M, Dargaud Y, Nougier C, Vinciguerra C. Genotyping might help therapeutic decision-making in patients with von Willebrand disease type 2 B. Haemophilia 2016; 22:e439-43. [PMID: 27353798 DOI: 10.1111/hae.12960] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/23/2016] [Indexed: 11/27/2022]
Affiliation(s)
- L Rugeri
- Centre Regional de Traitement des Hemophiles, Hopital Louis Pradel, Bron, France.
| | - M Fretigny
- Laboratoire Hématase, Hôpital E. Herriot, Lyon, France
| | - Y Dargaud
- Centre Regional de Traitement des Hemophiles, Hopital Louis Pradel, Bron, France
| | - C Nougier
- Laboratoire Hématase, Hôpital E. Herriot, Lyon, France
| | - C Vinciguerra
- Laboratoire Hématase, Hôpital E. Herriot, Lyon, France
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5
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Jourdy Y, Nougier C, Roualdes O, Fretigny M, Durand B, Negrier C, Vinciguerra C. Characterization of five associations ofF8missense mutations containing FVIII B domain mutations. Haemophilia 2016; 22:583-9. [DOI: 10.1111/hae.12906] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/30/2015] [Indexed: 01/17/2023]
Affiliation(s)
- Y. Jourdy
- Hospices Civils de Lyon; Hôpital Edouard Herriot; Service d'hématologie Biologique; Lyon France
- EAM 4174 Hémostase; Inflammation et Sepsis; Université Claude Bernard Lyon1; Université de Lyon; Lyon France
| | - C. Nougier
- Hospices Civils de Lyon; Hôpital Edouard Herriot; Service d'hématologie Biologique; Lyon France
- EAM 4174 Hémostase; Inflammation et Sepsis; Université Claude Bernard Lyon1; Université de Lyon; Lyon France
| | - O. Roualdes
- Hospices Civils de Lyon; Hôpital Edouard Herriot; Service d'hématologie Biologique; Lyon France
- EAM 4174 Hémostase; Inflammation et Sepsis; Université Claude Bernard Lyon1; Université de Lyon; Lyon France
| | - M. Fretigny
- Hospices Civils de Lyon; Hôpital Edouard Herriot; Service d'hématologie Biologique; Lyon France
| | - B. Durand
- Hospices Civils de Lyon; Hôpital de la Croix Rousse; Service d'hématologie Biologique; Lyon France
| | - C. Negrier
- Hospices Civils de Lyon; Hôpital Edouard Herriot; Service d'hématologie Biologique; Lyon France
- EAM 4174 Hémostase; Inflammation et Sepsis; Université Claude Bernard Lyon1; Université de Lyon; Lyon France
| | - C. Vinciguerra
- Hospices Civils de Lyon; Hôpital Edouard Herriot; Service d'hématologie Biologique; Lyon France
- EAM 4174 Hémostase; Inflammation et Sepsis; Université Claude Bernard Lyon1; Université de Lyon; Lyon France
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6
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Lannoy N, Ravoet M, Grisart B, Fretigny M, Vikkula M, Hermans C. Five int22h homologous copies at the Xq28 locus identified in intron22 inversion type 3 of the Factor VIII gene. Thromb Res 2015; 137:224-227. [PMID: 26653368 DOI: 10.1016/j.thromres.2015.11.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 11/03/2015] [Accepted: 11/14/2015] [Indexed: 10/22/2022]
Affiliation(s)
- N Lannoy
- Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain, Brussels, Belgium.
| | - M Ravoet
- Center of Human Genetics, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - B Grisart
- Center of Human Genetics IPG, Gosselies, Belgium
| | - M Fretigny
- Service d'Hématologie Biologique, Hôpital Edouard Herriot, Hospices Civils de Lyon, France
| | - M Vikkula
- Laboratory of Human Molecular Genetics de Duve Institute, Université Catholique de Louvain, Brussels, Belgium
| | - C Hermans
- Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain, Brussels, Belgium; Haemostasis and Thrombosis Unit, Haemophilia Clinic, Division of Haematology, UCL, Cliniques Universitaires Saint-Luc, Brussels, Belgium
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7
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Roualdes O, Nougier C, Fretigny M, Talagrand E, Durand B, Negrier C, Vinciguerra C. Usefulness of anin vitrocellular expression model for haemophilia A carrier diagnosis: illustration with five novel mutations in theF8gene in women with isolated factor VIII:C deficiency. Haemophilia 2015; 21:e202-e209. [DOI: 10.1111/hae.12651] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/14/2015] [Indexed: 11/29/2022]
Affiliation(s)
- O. Roualdes
- Hospices Civils de Lyon; Hôpital Edouard Herriot; Service d'Hématologie Biologique; Lyon
- EAM 4174 Hémostase; Inflammation et Sepsis; Université Claude Bernard Lyon 1; Lyon
| | - C. Nougier
- Hospices Civils de Lyon; Hôpital Edouard Herriot; Service d'Hématologie Biologique; Lyon
- EAM 4174 Hémostase; Inflammation et Sepsis; Université Claude Bernard Lyon 1; Lyon
| | - M. Fretigny
- Hospices Civils de Lyon; Hôpital Edouard Herriot; Service d'Hématologie Biologique; Lyon
| | - E. Talagrand
- Hospices Civils de Lyon; Hôpital Edouard Herriot; Service d'Hématologie Biologique; Lyon
| | - B. Durand
- Hospices Civils de Lyon; Hôpital de la Croix Rousse; Laboratoire d'Hématologie Biologique; Lyon
| | - C. Negrier
- Hospices Civils de Lyon; Hôpital Edouard Herriot; Service d'Hématologie Biologique; Lyon
- EAM 4174 Hémostase; Inflammation et Sepsis; Université Claude Bernard Lyon 1; Lyon
| | - C. Vinciguerra
- Hospices Civils de Lyon; Hôpital Edouard Herriot; Service d'Hématologie Biologique; Lyon
- EAM 4174 Hémostase; Inflammation et Sepsis; Université Claude Bernard Lyon 1; Lyon
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8
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Ardillon L, Lefrançois A, Graveleau J, Fouassier M, Ternisien C, Sigaud M, Fretigny M, Archambeaud I, Trossaërt M. Management of bleeding in severe factor V deficiency with a factor V inhibitor. Vox Sang 2014; 107:97-9. [DOI: 10.1111/vox.12134] [Citation(s) in RCA: 7] [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] [Received: 08/08/2013] [Revised: 12/20/2013] [Accepted: 12/20/2013] [Indexed: 12/23/2022]
Affiliation(s)
- L. Ardillon
- Haemophilia Center; University Hospital; Nantes France
| | - A. Lefrançois
- Haemophilia Center; University Hospital; Nantes France
| | - J. Graveleau
- Internal Medicine; University Hospital; Nantes France
| | - M. Fouassier
- Haemophilia Center; University Hospital; Nantes France
| | - C. Ternisien
- Haemophilia Center; University Hospital; Nantes France
| | - M. Sigaud
- Haemophilia Center; University Hospital; Nantes France
| | - M. Fretigny
- Laboratory of Hematology; University Hospital; Lyon France
| | | | - M. Trossaërt
- Haemophilia Center; University Hospital; Nantes France
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9
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Trossaert M, Lienhart A, Nougier C, Fretigny M, Sigaud M, Meunier S, Fouassier M, Ternisien C, Negrier C, Dargaud Y. Diagnosis and management challenges in patients with mild haemophilia A and discrepant FVIII measurements. Haemophilia 2014; 20:550-8. [DOI: 10.1111/hae.12381] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/27/2013] [Indexed: 11/28/2022]
Affiliation(s)
- M. Trossaert
- Centre Regional du Traitement de l'Hemophilie; CHU de Nantes; Nantes France
| | - A. Lienhart
- Unite d'Hemostase Clinique; CHU de Lyon; Lyon France
| | - C. Nougier
- Laboratoire d'Hemostase; CHU de Lyon; Lyon France
| | - M. Fretigny
- Laboratoire d'Hemostase; CHU de Lyon; Lyon France
| | - M. Sigaud
- Centre Regional du Traitement de l'Hemophilie; CHU de Nantes; Nantes France
| | - S. Meunier
- Unite d'Hemostase Clinique; CHU de Lyon; Lyon France
| | - M. Fouassier
- Centre Regional du Traitement de l'Hemophilie; CHU de Nantes; Nantes France
| | - C. Ternisien
- Centre Regional du Traitement de l'Hemophilie; CHU de Nantes; Nantes France
| | - C. Negrier
- Unite d'Hemostase Clinique; CHU de Lyon; Lyon France
- EA 4174 Unite de Recherche sur l'Hemophilie; Universite Lyon 1; Lyon France
| | - Y. Dargaud
- Unite d'Hemostase Clinique; CHU de Lyon; Lyon France
- EA 4174 Unite de Recherche sur l'Hemophilie; Universite Lyon 1; Lyon France
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10
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Nougier C, Roualdes O, Fretigny M, d'Oiron R, Costa C, Negrier C, Vinciguerra C. Characterization of four novel molecular changes in the promoter region of the factor VIII gene. Haemophilia 2013; 20:e149-56. [DOI: 10.1111/hae.12346] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/17/2013] [Indexed: 01/10/2023]
Affiliation(s)
- C. Nougier
- Service d'Hématologie Biologique; HCL, Hôpital Edouard Herriot; Lyon France
- EAM 4174 Hémostase, Inflammation et Sepsis; Université Claude Bernard Lyon 1; Lyon France
| | - O. Roualdes
- Service d'Hématologie Biologique; HCL, Hôpital Edouard Herriot; Lyon France
- EAM 4174 Hémostase, Inflammation et Sepsis; Université Claude Bernard Lyon 1; Lyon France
| | - M. Fretigny
- Service d'Hématologie Biologique; HCL, Hôpital Edouard Herriot; Lyon France
| | - R. d'Oiron
- Centre de Traitement pour Hémophiles, AP-HP Hôpital Bicêtre; Université Paris XI; le Kremlin-Bicêtre France
| | - C. Costa
- Département de Génétique; CHU Henri Mondor-AP-HP; Créteil France
| | - C. Negrier
- Service d'Hématologie Biologique; HCL, Hôpital Edouard Herriot; Lyon France
- EAM 4174 Hémostase, Inflammation et Sepsis; Université Claude Bernard Lyon 1; Lyon France
| | - C. Vinciguerra
- Service d'Hématologie Biologique; HCL, Hôpital Edouard Herriot; Lyon France
- EAM 4174 Hémostase, Inflammation et Sepsis; Université Claude Bernard Lyon 1; Lyon France
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11
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Igout J, Fretigny M, Vasse M, Callat MP, Silva M, Willemont L, Gelle M, Lenormand B. Evaluation of the coulter LH 750 haematology analyzer compared with flow cytometry as the reference method for WBC, platelet and nucleated RBC count. ACTA ACUST UNITED AC 2004; 26:1-7. [PMID: 14738430 DOI: 10.1111/j.0141-9854.2003.00577.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [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: 11/28/2022]
Abstract
The Coulter LH 750 is a new haematology analyser with several new features: a count of nucleated red blood cells (NRBCs), automated WBC correction in presence of a flag indicating a cellular interference and a lower incidence of platelet or WBC interference flags when compared with the GEN.S, our current instrument. We had three main goals in our study: evaluating the LH 750 WBC counts when a GEN.S flag suggests a risk of WBC interference, ascertaining whether the platelet counts not flagged by the LH 750 were accurately assessed in samples flagged by the GEN.S and evaluating the NRBC assay provided by the LH 750. Flow cytometry, using CD45 and CD41, respectively for WBC and platelet labelling, was used as a reference method to assess the accuracy of the LH 750 counts. NRBC were identified by double labelling with propidium iodide (PI) and CD45, NRBCs being CD45-/PI+. A significant relationship was found between LH 750 and flow cytometric WBC counts, whether a WBC correction was made by the LH 750 (r = 0.9809, n = 54) or not (r = 0.9901, n = 23). A highly significant relationship was observed for platelets not only in the range from 0 to 450 x 10(9)/l (r = 0.981, n = 108) but also in cases of thrombocytopenia (range: 0-80 x 10(9)/l; r = 0.956, n = 51). In samples with NRBCs, the NRBC percentages given by the LH 750 and by flow cytometry were highly correlated (r = 0.977, n = 60) and WBC counts were accurate. In conclusion, the reduction in flagging by the LH 750, the accuracy of the results, and the availability of a NRBC count, constitute major advantages.
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Affiliation(s)
- J Igout
- Laboratoire d'hématologie, CHU Charles Nicolle, Rouen, France
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12
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Lévesque H, Lecam-Duchez V, Cailleux N, Gandelin C, Fretigny M, Marie I, Hellot M, Courtois H, Borg J. Intérêt d'une prévention secondairepar des AVK ≪ faibles doses ≫ au cours des thrombophilies constitutionnelles : étude prospective randomisée chez 79 sujets. Résultats préliminaires à 30 mois de suivi. Rev Med Interne 2003. [DOI: 10.1016/s0248-8663(03)80390-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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Fretigny M, Lecam-Duchez V, Lévesque H, Porte A, Gandelin C, Cailleux N, Marie I, Courtoise H, Borg J. Influence des polymorphismes du cytochrome P450sur la sensibilité à la warfarine chez 78 sujets nécessitant une anticoagulation prolongée en prévention secondaire d'une thrombophilie. Rev Med Interne 2003. [DOI: 10.1016/s0248-8663(03)80391-0] [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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Le Cam-Duchez V, Fretigny M, Bagan-Triquenot A, Chretien MH, Mihout B, Borg JY. Protein C promoter polymorphisms are potential additional risk factors for cerebral venous thrombosis. J Thromb Haemost 2003. [DOI: 10.1111/j.1538-7836.2003.tb03487.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: 11/28/2022]
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15
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Leclerc C, Fretigny M, Jehan C, Le Querrec A, Hanouz JL, Gérard JL, Bricard H. [Mesenteric vein and inferior vena cava thrombosis: disseminated intravascular coagulation and/or G 20210 A mutation of the prothrombin gene?]. Ann Fr Anesth Reanim 2000; 19:42-6. [PMID: 10751955 DOI: 10.1016/s0750-7658(00)00124-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
The authors report the case of a 30-year-old man who died from pulmonary embolism and multiorgan failure caused by mesenteric and inferior vena cava thrombosis. The patient was found heterozygous for the prothrombin gene variant (G 20210 A). The family study showed the same asymptomatic anomaly in his brother. This recently described mutation is associated with an increased risk for venous thrombosis. The investigations and treatment of mesenteric venous thrombosis are discussed.
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Affiliation(s)
- C Leclerc
- Département d'anesthésie-réanimation chirurgicale et médecine d'urgence, Centre hospitalier universitaire Côte-de-Nacre, Caen, France
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Petitjean J, Vincent F, Fretigny M, Vabret A, Poveda JD, Brun J, Freymuth F. Comparison of two serological methods and a polymerase chain reaction-enzyme immunoassay for the diagnosis of acute respiratory infections with Chlamydia pneumoniae in adults. J Med Microbiol 1998; 47:615-21. [PMID: 9839566 DOI: 10.1099/00222615-47-7-615] [Citation(s) in RCA: 20] [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: 11/18/2022] Open
Abstract
Chlamydia pneumoniae is a common respiratory tract pathogen. Serological methods currently used for the diagnosis of C. pneumoniae infection lack specificity, give ambiguous results from a single serum sample and often provide only a retrospective diagnosis. A prospective study was undertaken to assess whether PCR could be a useful addition to the serological techniques routinely practised for diagnosis. This study investigated 68 adult patients with a diagnosis of acute respiratory infection. Acute and convalescent serological determination of antibodies to C. pneumoniae were performed by means of an rELISA test and a micro-immunofluorescence (MIF) test. Nasopharyngeal aspirates or bronchoalveolar lavage specimens and bronchial aspirates obtained from the 68 patients were evaluated by PCR-enzyme immunoassay (PCR-EIA) for the presence of C. pneumoniae and by immunofluorescence assay and cell culture for virus identification. Mycoplasma pneumoniae serology was also performed. Eight patients (11.8%) were positive by either rELISA or PCR-EIA, or both, with an infection rate of 5 (18.5%) of 27 in patients with community-acquired pneumonia, 2 (9%) of 22 in asthmatic patients and 1 (5%) of 19 in patients with an exacerbation of chronic obstructive pulmonary disease. Serological evidence of acute infection was found in four of these patients with the rELISA test and in three others with the MIF test. PCR-EIA detected C. pneumoniae DNA in four specimens, but there were concordant results with both rELISA and PCR-EIA in only one patient A positive PCR-EIA was also obtained in a patient who did not show an antibody response in acute serum. The discrepancy between serological and PCR-EIA results reflects the difficulties in routine laboratory diagnosis of C. pneumoniae infection and the necessity for further studies with optimised techniques.
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Affiliation(s)
- J Petitjean
- Laboratory of Human and Molecular Virology, CHRU Caen, France
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