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Garcia R, Mansourati J, Gras D, Probst V, Khattar P, Himbert C, Gandjbakhch E, Saulnier PJ, Constantin V, Lequeux B, Gueffet JP, Combes S, Minois D, Gras M, Bisson A, Pierre B, Defaye P, Marijon E, Boveda S, Degand B. Rationale and design of the HeartLogic French Cohort Study: Remote monitoring of heart failure patients implanted with a cardiac defibrillator enabled with the HeartLogic algorithm. Archives of Cardiovascular Diseases Supplements 2023. [DOI: 10.1016/j.acvdsp.2022.10.186] [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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Farrell ED, Andersson L, Bekkevold D, Campbell N, Carlsson J, Clarke MW, Egan A, Folkvord A, Gras M, Lusseau SM, Mackinson S, Nolan C, O'Connell S, O'Malley M, Pastoors M, Pettersson ME, White E. A baseline for the genetic stock identification of Atlantic herring, Clupea harengus, in ICES Divisions 6.a, 7.b-c. R Soc Open Sci 2022; 9:220453. [PMID: 36133150 PMCID: PMC9449477 DOI: 10.1098/rsos.220453] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 08/19/2022] [Indexed: 06/16/2023]
Abstract
Atlantic herring in International Council for Exploration of the Sea (ICES) Divisions 6.a, 7.b-c comprises at least three populations, distinguished by temporal and spatial differences in spawning, which have until recently been managed as two stocks defined by geographical delineators. Outside of spawning the populations form mixed aggregations, which are the subject of acoustic surveys. The inability to distinguish the populations has prevented the development of separate survey indices and separate stock assessments. A panel of 45 single-nucleotide polymorphisms, derived from whole-genome sequencing, were used to genotype 3480 baseline spawning samples (2014-2021). A temporally stable baseline comprising 2316 herring from populations known to inhabit Division 6.a was used to develop a genetic assignment method, with a self-assignment accuracy greater than 90%. The long-term temporal stability of the assignment model was validated by assigning archive (2003-2004) baseline samples (270 individuals) with a high level of accuracy. Assignment of non-baseline samples (1514 individuals) from Divisions 6.a, 7.b-c indicated previously unrecognized levels of mixing of populations outside of the spawning season. The genetic markers and assignment models presented constitute a 'toolbox' that can be used for the assignment of herring caught in mixed survey and commercial catches in Division 6.a into their population of origin with a high level of accuracy.
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Affiliation(s)
- Edward D. Farrell
- EDF Scientific Limited, Rathaha, Ladysbridge, Cork, Ireland
- Area 52 Research Group, School of Biology and Environmental Science/Earth Institute, Science Centre West, University College Dublin, Dublin, Ireland
| | - Leif Andersson
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
- Department of Veterinary Integrative Biosciences, Texas A&M University, College Station, Texas, USA
- Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Dorte Bekkevold
- National Institute of Aquatic Resources, Technical University of Denmark, Silkeborg, Denmark
| | - Neil Campbell
- Marine Scotland Science, 375 Victoria Road, Aberdeen AB11 9DB, Scotland
| | - Jens Carlsson
- Area 52 Research Group, School of Biology and Environmental Science/Earth Institute, Science Centre West, University College Dublin, Dublin, Ireland
| | | | - Afra Egan
- Marine Institute, Rinville, Oranmore, Co. Galway, Ireland
| | - Arild Folkvord
- Department of Biological Sciences, University of Bergen, Bergen, Norway
| | - Michaël Gras
- Marine Institute, Rinville, Oranmore, Co. Galway, Ireland
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Susan Mærsk Lusseau
- Marine Scotland Science, 375 Victoria Road, Aberdeen AB11 9DB, Scotland
- National Institute of Aquatic Resources, Willemoesvej 2, Hovedbygning, 067, 9850 Hirtshals, Denmark
| | - Steven Mackinson
- Scottish Pelagic Fishermen's Association, Heritage House, 135-139 Shore Street, Fraserburgh, Aberdeenshire, Scotland
| | - Cormac Nolan
- Marine Institute, Rinville, Oranmore, Co. Galway, Ireland
| | - Steven O'Connell
- Marine Scotland Science, 375 Victoria Road, Aberdeen AB11 9DB, Scotland
| | | | - Martin Pastoors
- Pelagic Freezer-trawler Association, Louis Braillelaan 80, 2719 EK Zoetermeer, The Netherlands
| | - Mats E. Pettersson
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Emma White
- Marine Institute, Rinville, Oranmore, Co. Galway, Ireland
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Taranu I, Marin D, Pistol G, Untea A, Vlassa M, Filip M, Gras M, Rotar C, Anghel A. Assessment of the ability of dietary yeast-fermented rapeseed
meal to modulate inflammatory and oxidative stress
in piglets after weaning. J Anim Feed Sci 2022. [DOI: 10.22358/jafs/148055/2022] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Waintraub X, Sauve R, Vedrenne G, Amet D, Gras M, Degand B, Moini C, Duthoit G, Laredo M, Badenco N, Lesaffre F, Lepillier A, Hidden Lucet F, Hermida A, Gandjbakhch E. Endocardial ablation of ventricular tachycardia ablation in arrhythmogenic right ventricular cardiomyopathy aiming epicardial late potential abolition. Europace 2022. [DOI: 10.1093/europace/euac053.382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Catheter ablation is frequently needed to treat ventricular tachycardia (VT) in ARVC patients. Ablation aiming non-inducibility (NI) and late potential (LP) abolition has been shown to be effective1. Simultaneous endo-epicardial mapping demonstrate epicardial involvement in most VT2. However epicardial fat and vicinity of coronary artery may prevent effective epicardial ablation.
Aims
(a) evaluate endocardial-only ablation guided by epicardial late-potential recording (EA-ELP) to achieve LP abolition (LPA) and NI; (b) measure ablation-index(AI) values allowing epicardial LP suppression by endocardial ablation, as a surrogate for transmurality.
Methods
From 2019 to 2021 the authors (XW, EG) evaluated EA-ELP in ARVC patients patient referred for ablation. Our ablation protocol was previously described3. Endo and epicardial voltage mapping of the right ventricle (RV) were performed in sinus rhythm using 0.5-1.5 mV threshlods for endocardial scar and 0.5-1 mV for the epicardial. All LP were manually tagged. Programmed ventricular stimulation (PVS) was performed till S4 from the RV apex and other sites, all inducible tolerated VT were mapped. Endocardial ablation was performed with an irrigated tip catheter positioned in front of epi-LP recorded by a multi-electrode catheter aiming to eliminate or delay epi-LP as a surrogate for transmurality. For each lesion fulfilling the «transmurality criteria», the AI values were recorded. Remap was performed to validate LPA and NI was tested. Patient follow-up (FU) rely on telemonitoring in ICD-carriers and holter/exercise test for the others.
Results
11 patients were enrolled (9M/2F, mean age 45 years), 9 for VT recurrence (3 redo) and 2 for de novo VT. The median ICD therapy before ablation was 5/patient (mean 1.7). The clinical VT originated from the RV outflow tract (RVOT) in 5 patients, peritricuspid (PT) in 2, RV free wall (RFW) in 4. Substrate were more extended in the epicardium compared to the endocardium: epi-LP and scar surfaces were 42.5 cm2/118 cm2 versus 24.5 cm2/25.5 cm2 for the endocardium. In one patient, additional epicardial lesion was necessary to achieve LPA. The mean ablation duration was 3377 s. Remap showed LPA in all patients and PVS was negative in all (not tested in one due to hemodynamic instability). One patient presented retrosternal hematoma after ablation with spontaneous favorable outcome. Endocardial AI values allowing epi-LP abolition were 595 for the inferior wall, 625 in the RVOT, 604 for PT and 639 for RFW. During a mean FU of 12 months (median 16.5 mths), only one patient had VT recurrence.
Conclusion
Based on this case-series, EA-ELP appeared as a safe and effective method to treat VT in ARVC. EA-ELP ablation allowed VT suppression in 91 % of patients after an mean FU of 12 mths. The RV endocardial AI needed to suppress epi-LP ranged was between 595-639 and could be used as surrogate for transmurality in ARVC.
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Affiliation(s)
- X Waintraub
- AP-HP - Hospital Pitie-Salpetriere - Institute of Cardiology, Rhythmology Department, Paris, France
| | - R Sauve
- Biosense Webster, Paris, France
| | - G Vedrenne
- Saint Joseph Hospital, Arrhythmia Unit, Paris, France
| | - D Amet
- European Hospital Georges Pompidou, Paris, France
| | - M Gras
- La Miletrie University Hospital Centre, Poitiers, France
| | - B Degand
- La Miletrie University Hospital Centre, Poitiers, France
| | - C Moini
- JACQUES CARTIER PRIVATE HOSPITAL, Massy, France
| | - G Duthoit
- AP-HP - Hospital Pitie-Salpetriere - Institute of Cardiology, Rhythmology Department, Paris, France
| | - M Laredo
- AP-HP - Hospital Pitie-Salpetriere - Institute of Cardiology, Rhythmology Department, Paris, France
| | - N Badenco
- AP-HP - Hospital Pitie-Salpetriere - Institute of Cardiology, Rhythmology Department, Paris, France
| | - F Lesaffre
- HOSPITAL ROBERT DEBRE - UNIVERSITY HOSPITAL CENTRE OF REIMS, Reims, France
| | - A Lepillier
- Centre Cardiologique du Nord (CCN), Saint Denis, France
| | - F Hidden Lucet
- AP-HP - Hospital Pitie-Salpetriere - Institute of Cardiology, Rhythmology Department, Paris, France
| | - A Hermida
- AP-HP - Hospital Pitie-Salpetriere - Institute of Cardiology, Rhythmology Department, Paris, France
| | - E Gandjbakhch
- AP-HP - Hospital Pitie-Salpetriere - Institute of Cardiology, Rhythmology Department, Paris, France
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de Villeneuve Bargemon JB, Prenaud C, Quérel D, Bismuth Y, de Keyzer PB, Gras M. Repair of the dorsal capsuloligamentous scapholunate septum during arthroscopic resection of painful dorsal wrist ganglion cyst: Comparative analysis of two techniques. Hand Surgery and Rehabilitation 2022; 41:457-462. [DOI: 10.1016/j.hansur.2022.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 03/29/2022] [Accepted: 04/01/2022] [Indexed: 11/25/2022]
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Gras M, Gras-Champel V, Moragny J, Delaunay P, Laugier D, Masmoudi K, Liabeuf S. Impact of the COVID-19 outbreak on the reporting of adverse drug reactions associated with self-medication. Ann Pharm Fr 2021; 79:522-529. [PMID: 33631179 PMCID: PMC7899020 DOI: 10.1016/j.pharma.2021.02.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [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: 12/22/2020] [Revised: 02/09/2021] [Accepted: 02/16/2021] [Indexed: 11/21/2022]
Abstract
Objectives The primary objective of the present study was to describe the characteristics of adverse drug reactions (ADRs) linked to self-medication that were notified to the French Pharmacovigilance Database (FPVD) during the COVID-19 outbreak in 2020 first wave. The secondary objective was to compare the characteristics of these ADRs in 2020 with those notified during the same calendar period a year previously. Material and methods We analyzed ADRs recorded in the FPVD between March 15th and May 31st, 2020 vs. the same dates in 2019. Only ADRs linked to self-medication were analyzed. Descriptive statistics were used to obtain an overview of the types and characteristics of these ADRs. Results Of 3114 ADRs notified to the FPVD during the COVID-19 period in 2020, 114 (3.7%) were linked to self-medication. The equivalent proportion in 2019 was 1.6% (113 out of 7097). Half of the ADRs notified in 2020 were “serious”. The median age of affected patients was 30.5, and 22% of the ADRs concerned children. Of the 114 ADRs linked to self-medication, 107 (66%) were for prescription-only drugs. The three mostly frequently suspected ATC classes were analgesics, psycholeptics, and antibacterials for systemic use. The most frequent ADRs were general disorders, gastrointestinal disorders, and nervous system disorders. The main difference between the non-COVID-19 period and the COVID-19 period was the higher proportion of medication errors during the latter. Conclusion The present study is the first to have reported on ADRs linked to self-medication and notified during a COVID-19 outbreak. Further studies of self-medication patterns and their consequences in a pandemic context are mandatory and effective information on medication use (including self-medication and its dangers) during a pandemic is essential.
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Affiliation(s)
- M Gras
- Department of Clinical Pharmacology, Amiens University Hospital, Amiens, France
| | - V Gras-Champel
- Department of Clinical Pharmacology, Amiens University Hospital, Amiens, France; MP3CV Laboratory, EA7517, Jules-Verne University of Picardie, Amiens, France
| | - J Moragny
- Department of Clinical Pharmacology, Amiens University Hospital, Amiens, France
| | - P Delaunay
- Department of Clincal Pharmacology and Vigilances, Poitiers University Hospital, Poitiers, France
| | - D Laugier
- Regional Pharmacovigilance Centre Marseille - Provence - Corse, Sainte-Marguerite Hospital, AP-HM, Marseille, France
| | - K Masmoudi
- Department of Clinical Pharmacology, Amiens University Hospital, Amiens, France
| | - S Liabeuf
- Department of Clinical Pharmacology, Amiens University Hospital, Amiens, France; MP3CV Laboratory, EA7517, Jules-Verne University of Picardie, Amiens, France.
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Suc L, Daguenet E, Louati S, Gras M, Langrand-Escure J, Sotton S, Magné N. [Telemedicine for prostate cancer during long-term radiotherapy follow-up: An opportunity for digital innovation in oncology]. Cancer Radiother 2021; 25:45-50. [PMID: 33402288 DOI: 10.1016/j.canrad.2020.06.038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/08/2020] [Accepted: 06/09/2020] [Indexed: 10/22/2022]
Abstract
PURPOSE The annual follow-up in radiotherapy for prostate cancer consists of an oral interview with a radiation oncologist. The present study aimed at surveying the target population on their knowledge and perceptions of telemedicine. MATERIALS AND METHODS A prospective study was conducted at the Lucien Neuwirth Cancer Institute (France) that included patients with prostate cancer undergoing treatment or in follow-up, during spring 2019 (n=158). A specific questionnaire was designed for the study. Patient's self-evaluation of satisfaction and enthusiasm was assessed through visual analog scale (VAS) (0/10 to 10/10). RESULTS One hundred and fifty-eight patients completed the survey. The vast majority of the population commonly used phone for communication and 56% of patients owned internet connexion. Around 56% of patients declared telemedicine knowledge without having ever experienced telemedicine. If 60.8% of patients would not be against telemedicine with a median enthusiasm VAS of 6/10, patients' opinions were divergent: 48.7% of patients would like to keep a classical follow-up and 48.7% of patients would envision to alternate classical consultation with telemedicine. CONCLUSION This feasibility study with an aged cohort showed that telemedicine is a valuable option for long-term radiotherapy follow-up, even if therapeutic education and information will be necessary to supervise this novel approach.
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Affiliation(s)
- L Suc
- Département universitaire de la recherche et de l'enseignement, institut de cancérologie Lucien-Neuwirth, 42270 Saint-Priest-en-Jarez, France
| | - E Daguenet
- Département universitaire de la recherche et de l'enseignement, institut de cancérologie Lucien-Neuwirth, 42270 Saint-Priest-en-Jarez, France; Département de radiothérapie, institut de cancérologie Lucien-Neuwirth, 42270 Saint-Priest-en-Jarez, France
| | - S Louati
- Département universitaire de la recherche et de l'enseignement, institut de cancérologie Lucien-Neuwirth, 42270 Saint-Priest-en-Jarez, France; Département de radiothérapie, institut de cancérologie Lucien-Neuwirth, 42270 Saint-Priest-en-Jarez, France; Laboratoire de radiobiologie cellulaire et moléculaire, UMR CNRS5822/IN2P3, IPNL, PRISME, 69622 Villeurbanne, France
| | - M Gras
- Département universitaire de la recherche et de l'enseignement, institut de cancérologie Lucien-Neuwirth, 42270 Saint-Priest-en-Jarez, France; Département de radiothérapie, institut de cancérologie Lucien-Neuwirth, 42270 Saint-Priest-en-Jarez, France
| | - J Langrand-Escure
- Département de radiothérapie, institut de cancérologie Lucien-Neuwirth, 42270 Saint-Priest-en-Jarez, France
| | - S Sotton
- Département universitaire de la recherche et de l'enseignement, institut de cancérologie Lucien-Neuwirth, 42270 Saint-Priest-en-Jarez, France; Département de radiothérapie, institut de cancérologie Lucien-Neuwirth, 42270 Saint-Priest-en-Jarez, France
| | - N Magné
- Département universitaire de la recherche et de l'enseignement, institut de cancérologie Lucien-Neuwirth, 42270 Saint-Priest-en-Jarez, France; Département de radiothérapie, institut de cancérologie Lucien-Neuwirth, 42270 Saint-Priest-en-Jarez, France; Laboratoire de radiobiologie cellulaire et moléculaire, UMR CNRS5822/IN2P3, IPNL, PRISME, 69622 Villeurbanne, France.
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Bisson A, Bodin A, Bernard A, Clementy N, Gras M, Andre C, Pierre B, Babuty D, Lip G, Fauchier L. P2899Stroke, thromboembolism and bleeding events in patients with atrial fibrillation according to the new EHRA valvular heart disease classification. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- A Bisson
- Tours Regional University Hospital, Hospital Trousseau, Tours, France
| | - A Bodin
- Tours Regional University Hospital, Hospital Trousseau, Tours, France
| | - A Bernard
- Tours Regional University Hospital, Hospital Trousseau, Tours, France
| | - N Clementy
- Tours Regional University Hospital, Hospital Trousseau, Tours, France
| | - M Gras
- Tours Regional University Hospital, Hospital Trousseau, Tours, France
| | - C Andre
- Tours Regional University Hospital, Hospital Trousseau, Tours, France
| | - B Pierre
- Tours Regional University Hospital, Hospital Trousseau, Tours, France
| | - D Babuty
- Tours Regional University Hospital, Hospital Trousseau, Tours, France
| | - G Lip
- Birmingham City Hospital, Birmingham, United Kingdom
| | - L Fauchier
- Tours Regional University Hospital, Hospital Trousseau, Tours, France
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Fauchier L, Bisson A, Clementy N, Pierre B, Andre C, Bodin A, Gras M, Genet T, Angoulvant D, Babuty D, Lip G. P4241Antithrombotic therapy in patients with atrial fibrillation and a so-called temporary cause: a different strategy needed in case of acute coronary syndrome? Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- L Fauchier
- Tours Regional University Hospital, Hospital Trousseau, Tours, France
| | - A Bisson
- Tours Regional University Hospital, Hospital Trousseau, Tours, France
| | - N Clementy
- Tours Regional University Hospital, Hospital Trousseau, Tours, France
| | - B Pierre
- Tours Regional University Hospital, Hospital Trousseau, Tours, France
| | - C Andre
- Tours Regional University Hospital, Hospital Trousseau, Tours, France
| | - A Bodin
- Tours Regional University Hospital, Hospital Trousseau, Tours, France
| | - M Gras
- Tours Regional University Hospital, Hospital Trousseau, Tours, France
| | - T Genet
- Tours Regional University Hospital, Hospital Trousseau, Tours, France
| | - D Angoulvant
- Tours Regional University Hospital, Hospital Trousseau, Tours, France
| | - D Babuty
- Tours Regional University Hospital, Hospital Trousseau, Tours, France
| | - G Lip
- Birmingham City Hospital, Birmingham, United Kingdom
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Gras M, Leclercq C. Spasticity and hyperselective neurectomy in the upper limb. Hand Surgery and Rehabilitation 2017; 36:391-401. [DOI: 10.1016/j.hansur.2017.06.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 05/15/2017] [Accepted: 06/13/2017] [Indexed: 10/18/2022]
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McInnes JC, Alderman R, Lea MA, Raymond B, Deagle BE, Phillips RA, Stanworth A, Thompson DR, Catry P, Weimerskirch H, Suazo CG, Gras M, Jarman SN. High occurrence of jellyfish predation by black-browed and Campbell albatross identified by DNA metabarcoding. Mol Ecol 2017; 26:4831-4845. [DOI: 10.1111/mec.14245] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 06/21/2017] [Indexed: 11/26/2022]
Affiliation(s)
- Julie C. McInnes
- Institute for Marine and Antarctic Studies; University of Tasmania; Hobart Tas. Australia
- Australian Antarctic Division; Kingston Tas. Australia
| | - Rachael Alderman
- Department of Primary Industries, Parks, Water and Environment; Hobart Tas. Australia
| | - Mary-Anne Lea
- Institute for Marine and Antarctic Studies; University of Tasmania; Hobart Tas. Australia
| | - Ben Raymond
- Institute for Marine and Antarctic Studies; University of Tasmania; Hobart Tas. Australia
- Australian Antarctic Division; Kingston Tas. Australia
| | | | - Richard A. Phillips
- British Antarctic Survey; Natural Environment Research Council; Cambridge UK
| | | | - David R. Thompson
- National Institute for Water and Atmospheric Research; Hataitai Wellington New Zealand
| | - Paulo Catry
- Marine and Environmental Sciences Centre (MARE); ISPA-Instituto Universitário; Lisbon Portugal
| | - Henri Weimerskirch
- Centre d'Etudes Biologiques de Chizé; UMR 7372 CNRS/ULR; Villiers-en-Bois France
| | - Cristián G. Suazo
- Department of Animal Ecology and Systematics; Justus Liebig University Giessen; Giessen Germany
| | - Michaël Gras
- Directorate of Natural Resources; Fisheries of the Falkland Islands Government; Stanley Falkland Islands
| | - Simon N. Jarman
- CIBIO-InBIO; Centro de Investigação em Biodiversidade e Recursos Genéticos; Universidade do Porto; Vairão Portugal
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Gras M, Leclercq C. Treatment of spasticity of the intrinsic muscles of the fingers. Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.1406] [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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Rodhouse PGK, Pierce GJ, Nichols OC, Sauer WHH, Arkhipkin AI, Laptikhovsky VV, Lipiński MR, Ramos JE, Gras M, Kidokoro H, Sadayasu K, Pereira J, Lefkaditou E, Pita C, Gasalla M, Haimovici M, Sakai M, Downey N. Environmental effects on cephalopod population dynamics: implications for management of fisheries. Adv Mar Biol 2014; 67:99-233. [PMID: 24880795 DOI: 10.1016/b978-0-12-800287-2.00002-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Cephalopods are a relatively small class of molluscs (~800 species), but they support some large industrial scale fisheries and numerous small-scale, local, artisanal fisheries. For several decades, landings of cephalopods globally have grown against a background of total finfish landings levelling off and then declining. There is now evidence that in recent years, growth in cephalopod landings has declined. The commercially exploited cephalopod species are fast-growing, short-lived ecological opportunists. Annual variability in abundance is strongly influenced by environmental variability, but the underlying causes of the links between environment and population dynamics are poorly understood. Stock assessment models have recently been developed that incorporate environmental processes that drive variability in recruitment, distribution and migration patterns. These models can be expected to improve as more, and better, data are obtained on environmental effects and as techniques for stock identification improve. A key element of future progress will be improved understanding of trophic dynamics at all phases in the cephalopod life cycle. In the meantime, there is no routine stock assessment in many targeted fisheries or in the numerous by-catch fisheries for cephalopods. There is a particular need for a precautionary approach in these cases. Assessment in many fisheries is complicated because cephalopods are ecological opportunists and stocks appear to have benefited from the reduction of key predator by overexploitation. Because of the complexities involved, ecosystem-based fisheries management integrating social, economic and ecological considerations is desirable for cephalopod fisheries. An ecological approach to management is routine in many fisheries, but to be effective, good scientific understanding of the relationships between the environment, trophic dynamics and population dynamics is essential. Fisheries and the ecosystems they depend on can only be managed by regulating the activities of the fishing industry, and this requires understanding the dynamics of the stocks they exploit.
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Affiliation(s)
| | - Graham J Pierce
- Oceanlab, University of Aberdeen, Newburgh, Aberdeenshire, United Kingdom; CESAM & Departamento de Biologia, Universidade de Aveiro, Aveiro, Portugal
| | - Owen C Nichols
- School for Marine Science and Technology, University of Massachusetts - Dartmouth, Fairhaven, Massachusetts, USA; Center for Coastal Studies, Provincetown, Massachusetts, USA
| | - Warwick H H Sauer
- Department of Ichthyology and Fisheries Science, Rhodes University, Grahamstown, South Africa
| | | | | | - Marek R Lipiński
- Department of Ichthyology and Fisheries Science, Rhodes University, Grahamstown, South Africa
| | - Jorge E Ramos
- Institute for Marine and Antarctic Studies, Marine Research Laboratories Taroona, Nubeena Crescent, Taroona, Tasmania, Australia
| | - Michaël Gras
- Université de Caen Basse-Normandie, Institut de Biologie Fondamentale et Appliquée Department, UMR BOREA: Biologie des ORganismes et des Ecosystèmes Aquatiques, Esplanade de la paix, CS 14032, Caen, France; BOREA, UMR CNRS7208, IRD207, UPMC, MNHN, UCBN, Caen, France
| | - Hideaki Kidokoro
- Japan Sea National Fisheries Research, Institute, Fisheries Research Agency, Suido-cho, Niigata, Japan
| | - Kazuhiro Sadayasu
- Marine Fisheries Research and Development Center, Fisheries Research Agency, Yokohama, Kanagawa, Japan
| | - João Pereira
- Instituto de Investigação das Pescas e do Mar (IPIMAR), Lisboa, Portugal
| | - Evgenia Lefkaditou
- Helenic Centre for Marine Research, Aghios Kosmas, Hellinikon, Athens, Greece
| | - Cristina Pita
- Oceanlab, University of Aberdeen, Newburgh, Aberdeenshire, United Kingdom; CESAM & Departamento de Biologia, Universidade de Aveiro, Aveiro, Portugal
| | - Maria Gasalla
- Fisheries Ecosystems Laboratory, Oceanographic Institute, University of São Paulo, São Paulo, Brazil
| | - Manuel Haimovici
- Institute of Oceanography, Federal University of Rio Grande, CEP, Rio Grande, Brazil
| | - Mitsuo Sakai
- National Research Institute of Far Seas Fisheries, Shizuoka, Japan
| | - Nicola Downey
- Department of Ichthyology and Fisheries Science, Rhodes University, Grahamstown, South Africa
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Ibao AF, Gras M, Therrien B, Süss-Fink G, Zava O, Dyson PJ. Thiolato-Bridged Arene-Ruthenium Complexes: Synthesis, Molecular Structure, Reactivity, and Anticancer Activity of the Dinuclear Complexes [(arene)2Ru2(SR)2Cl2]. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201101057] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Gras M, Mathoulin C. Vascularized bone graft pedicled on the volar carpal artery from the volar distal radius as primary procedure for scaphoid non-union. Orthop Traumatol Surg Res 2011; 97:800-6. [PMID: 22116058 DOI: 10.1016/j.otsr.2011.08.008] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [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: 09/06/2010] [Revised: 07/28/2011] [Accepted: 08/23/2011] [Indexed: 02/02/2023]
Abstract
INTRODUCTION The treatment of scaphoid non-union with non-vascularized bone graft leads to non-union in 10 to 20% of cases and up to 50% in case of proximal pole necrosis. Vascularized bone graft improves consolidation rates, but is generally restricted to secondary scaphoid non-union. HYPOTHESIS This study assessed the value of a primary vascularized bone graft pedicled on the transverse volar carpal artery from the volar aspect of the distal radius as donor site. PATIENTS AND METHODS This retrospective study included 111 cases of vascularized bone graft for scaphoid non-union as primary procedure in 73 cases and secondarily in 38. The procedures were performed through a single incision. RESULTS Mean delay before surgery was 25.5 and 33 months respectively, with union rates of 96% and 89.5%. Results showed improvement in both groups, but were better in primary surgery in terms of range of motion, strength, pain, function, satisfaction and return to work. There were more complications with secondary surgery. DISCUSSION All reports agree that union is better with vascularized bone graft. This technique performed as a day of admission surgery through a single incision under locoregional anesthesia seems feasible as a primary intervention.
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Affiliation(s)
- M Gras
- Nollet Locomotor System Institut, 23, rue Brochant, 75017 Paris, France.
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16
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Pollegioni P, Van der Linden G, Belisario A, Gras M, Anselmi N, Olimpieri I, Luongo L, Santini A, Turco E, Scarascia Mugnozza G, Malvolti ME. Mechanisms governing the responses to anthracnose pathogen in Juglans spp. J Biotechnol 2011; 159:251-64. [PMID: 21884735 DOI: 10.1016/j.jbiotec.2011.08.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2011] [Revised: 07/28/2011] [Accepted: 08/08/2011] [Indexed: 11/24/2022]
Abstract
Juglans nigra and Juglans regia are two highly economically important species for wood and fruit production that are susceptible to anthracnose caused by Gnomonia leptostyla. The identification of genotypes resistant to anthracnose could represent a valid alternative to agronomic and chemical management. In this study, we analyzed 72 walnut genotypes that showed a variety of resistance phenotypes in response to natural infection. According to the disease severity rating and microsatellite fingerprinting analysis, these genotypes were divided into three main groups: (40) J. nigra resistant, (1) J. nigra susceptible, and (31) J. regia susceptible. Data on leaf emergence rates and analysis of in vivo pathogenicity indicated that the incidence of anthracnose disease in the field might be partially conditioned by two key factors: the age and/or availability of susceptible leaves during the primary infection of fungus (avoidance by late flushing) and partial host resistance. NBS profiling approach, based on PCR amplification with an adapter primer for an adapter matching a restriction enzyme site and a degenerate primer targeting the conserved motifs present in the NBS domain of NBS-LRR genes, was applied. The results revealed the presence of a candidate marker that correlated to a reduction in anthracnose incidence in 72 walnut genotypes.
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Affiliation(s)
- P Pollegioni
- C.N.R. - Institute of Agro-environmental and Forest Biology, Viale Marconi 2, 05010 Porano, Terni, Italy.
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17
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Gras M, Therrien B, Süss-Fink G, Zava O, Dyson PJ. Thiophenolato-bridged dinuclear arene ruthenium complexes: a new family of highly cytotoxic anticancer agents. Dalton Trans 2010; 39:10305-13. [PMID: 20890536 DOI: 10.1039/c0dt00887g] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New cationic diruthenium complexes of the type [(arene)(2)Ru(2)(SPh)(3)](+), arene being C(6)H(6), p-(i)PrC(6)H(4)Me, C(6)Me(6), C(6)H(5)R, where R = (CH(2))(n)OC(O)C(6)H(4)-p-O(CH(2))(6)CH(3) or (CH(2))(n)OC(O)CH=CHC(6)H(4)-p-OCH(3) and n = 2 or 4, are obtained from the reaction of the corresponding precursor [(arene)RuCl(2)](2) and thiophenol and isolated as their chloride salts. The complexes have been fully characterised by spectroscopic methods and the solid state structure of [(C(6)H(6))(2)Ru(2)(SPh)(3)](+), crystallised as the hexafluorophosphate salt, has been established by single crystal X-ray diffraction. The complexes are highly cytotoxic against human ovarian cancer cells (cell lines A2780 and A2780cisR), with the IC(50) values being in the submicromolar range. In comparison the analogous trishydroxythiophenolato compounds [(arene)(2)Ru(2)(S-p-C(6)H(4)OH)(3)]Cl (IC(50) values around 100 μM) are much less cytotoxic. Thus, it would appear that the increased antiproliferative effect of the arene ruthenium complexes is due to the presence of the phenyl or toluyl substituents at the three thiolato bridges.
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Affiliation(s)
- Michaël Gras
- Institut de Chimie, Université de Neuchâtel, Case postale 158, CH-2009, Neuchâtel, Switzerland
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Abstract
This cross-sectional study among heterosexual migrant groups in south-eastern Amsterdam, the city area where the largest migrant groups live, provides an insight into HIV testing behaviour in this particular group. Participants were recruited at street locations (May 1997-July 1998) and interviewed using structured questionnaires. They also donated saliva for HIV testing. In total, 705 males and 769 females were included in this study (Afro-Surinamese (45%), Dutch-Antilleans (15%) and West Africans (40%)). Prior HIV testing was reported by 38% of all migrants (556/1479), of which only a minority (28%) had actively requested HIV testing. Multivariate logistic regression showed that not actively requesting HIV testing was more likely among younger (< 23 years) migrants, especially women (ORwomen: 4.79, p < 0.01, ORmen: 1.81, p < 0.05). Furthermore, women without previous STI treatment (OR 2.19, p < 0.05) with Afro-Surinamese ethnicity (OR 2.12, p < 0.05), men without health insurance (OR 2.17, p < 0.05) and with low education (p < 0.01) were also more likely to not actively request HIV testing. Active requests for HIV testing in case of HIV risk should be facilitated by promoting HIV testing and by improving accurate self-assessment of risk for HIV infection, especially among the groups that do not actively request HIV testing. This would increase HIV awareness and provide the opportunity of better medical care earlier in HIV infection.
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Affiliation(s)
- I G Stolte
- Municipal Health Service Amsterdam, Cluster of Infectious Diseases, HIV&STI Research, Nieuwe Achtergracht 100, PO Box 2200, 1000 CE Amsterdam, The Netherlands.
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Gras M, Therrien B, Süss-Fink G, Casini A, Edafe F, Dyson PJ. Anticancer activity of new organo-ruthenium, rhodium and iridium complexes containing the 2-(pyridine-2-yl)thiazole N,N-chelating ligand. J Organomet Chem 2010. [DOI: 10.1016/j.jorganchem.2010.01.020] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Marboeuf P, Gras M, Rosey G, Fontaine P, Mounier-Vehier C. [The metabolic syndrome: marker of cardiovascular risk in hypertensive patients? The importance of definition]. Arch Mal Coeur Vaiss 2007; 100:642-648. [PMID: 17928768] [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] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
INTRODUCTION Metabolic syndrome (MetS) was defined by association of abdominal obesity, hypertension, glucose intolerance and/or dyslipidemia. The objective of this study was to compare the new International Diabetes Federation (IDF) definition and the National Cholesterol Education Program Adult Treatment Panel III (NCEP) definition and their association with cardio-vascular disease in hypertensive patients. POPULATION AND METHOD Two hundred and thirty hypertensive patients were hospitalized successively for cardio-vascular disease exploration and hs-CRP measurement. The stratification of cardio-vascular risk was made according to the French recommendations. The IDF definition and the NCEP definition were compared according frequency of resistant hypertension and cardio-vascular disease extension. RESULTS In our study, high cardio-vascular risk hypertension represented 68.5% of patients. Diabetes was present in 23.5% of them and obesity in 45.5%. Patients with cardio-vascular disease represented 60% of our study population. Prevalence of MetS was 38.5% according to the NCEP definition and 59% according to the IDF definition. The NCEP definition was allowed to select subjects with widespread vascular disease and resistant hypertension whereas the IDF definition did not. These results could be explained by lower waist circumference and glycaemia cuts offs according to the IDF criteria. When diabetic's patients were excluded, MetS was not associated with increase of resistant hypertension frequency. Moreover, hs-CRP was independently associated to the extension of the cardiovascular disease and smoking remained the most powerfully factor associated to the cardio-vascular disease extension. CONCLUSION In hypertensive patients, the NCEP definition seems more adapted to the diagnosis of MetS than the IDF one. Abdominal obesity could be the indispensable element to the MetS diagnosis but according to the NCEP waist circumference cut off. The use of this syndrome seems to be relevant to select the patients presenting an intermediate cardio-vascular risk in order to adapt treatment.
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Affiliation(s)
- P Marboeuf
- Service de médecine vasculaire et HTA, clinique de cardiologie, hôpital cardiologique, CHRU Lille
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Sicard F, De Groot D, Gras M, Leprince J, Conlon JM, Roubos EW, Vaudry H, Delarue C. Neuroendocrine Regulation of Frog Adrenocortical Cells by Neurotensin. Ann N Y Acad Sci 2006; 1040:200-5. [PMID: 15891025 DOI: 10.1196/annals.1327.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
We previously characterized the primary structure of neurotensin (NT) from an extract of the intestine of the frog Rana esculenta. In this study, we provide evidence for the involvement of NT in the neurocrine regulation of the secretory activity of frog adrenocortical cells. Immunohistochemical studies revealed that the adrenal gland of R. esculenta is innervated by a dense network of NT-immunoreactive fibers. Graded concentrations of frog NT induced a dose-dependent stimulation of corticosterone and aldosterone secretion by frog adrenocortical explants through activation of two receptors with pEC(50) of 9.8 and 6.9. These data support the view that NT, released by nerve fibers within the frog adrenal gland, acts locally to control corticosteroid secretion.
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Affiliation(s)
- F Sicard
- European Institute for Peptide Research (IFRMP 23), Laboratory of Cellular and Molecular Neuroendocrinology, INSERM U413, UA CNRS, University of Rouen, Mont-Saint-Aignan, France
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Gras M, van Kemenade FJ, van Maarsseveen ACMT, Alberts C. [Sarcoidosis: immunopathogenesis and the potential of immunotherapy]. Ned Tijdschr Geneeskd 2003; 147:150-5. [PMID: 12635545] [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] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Sarcoidosis is a multi-systemic disease of unknown aetiology, immunopathologically and histologically characterised by a macrophage/T-helper I cell-mediated non-caseating granulomatous inflammation process. In the development of granulomas, an imbalance between pro-inflammatory and anti-inflammatory cytokines plays an important role, possibly initiated by an as yet unidentified (exogenous) stimulus. The clinical outcome of the disease process is unpredictable, and appears to be determined by the cytokine production of the inflammatory cells in the granuloma. Fifty to seventy percent of the patients recover without medication within a period of time which cannot be predicted, the other 30 to 50% of patients are treated during the course of the disease with corticosteroids (with varying degrees of success), either alone or in combination with cytostatic or immunosuppressive agents. Based on recent developments in the field of immunomodulation and on current knowledge of the immunopathogenesis of sarcoidosis, there appear to be opportunities for specific immunotherapy which should be evaluated in controlled studies.
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Affiliation(s)
- M Gras
- VU Medisch Centrum, afd. Pathologie, Postbus 7057, 1007 MB Amsterdam
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Fito P, Chiralt A, Betoret N, Gras M, Cháfer M, Martı́nez-Monzó J, Andrés A, Vidal D. Vacuum impregnation and osmotic dehydration in matrix engineering. J FOOD ENG 2001. [DOI: 10.1016/s0260-8774(00)00220-x] [Citation(s) in RCA: 150] [Impact Index Per Article: 6.5] [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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Dukers DF, Oudejans JJ, Jaspars EH, Gras M, Vos W, Middeldorp JM, Meijer CJ, Bloemena E. All infiltrating T-lymphocytes in Hodgkin's disease express immunohistochemically detectable T-cell receptor zeta-chains in situ. Histopathology 2000; 36:544-50. [PMID: 10849097 DOI: 10.1046/j.1365-2559.2000.00909.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AIM We studied the expression of TCR zeta-chain on tumour-infiltrating lymphocytes in EBV-positive and EBV-negative cases of Hodgkin's disease (HD), to assess whether downregulation of TCR zeta-chain on tumour-infiltrating lymphocytes might be a mechanism for immune escape of the neoplastic cells. METHODS AND RESULTS By immunohistochemistry we investigated tissue of 27 cases of primary HD, both paraffin embedded and frozen, for the presence of T-cell receptor complex zeta-chain and other T-cell markers on the reactive cells. Strong membranous staining of TCR zeta-chain was present in all cases in frozen tissue. In contrast, in paraffin-embedded material substantial loss of TCR zeta-chain was detected in old (> 6 years) tissues. However, no differences in either the number of positive cells or their staining intensity were observed in EBV-positive and negative cases of HD as detected in frozen tissue. Storage of paraffin-embedded tissue leads to a rapid and substantial loss of TCR zeta-chain reactivity compared to frozen material of the same HD cases. Staining reactivity of other T-cell markers (CD3, CD4 and CD8) on paraffin-embedded material remained unaffected. Immunofluorescent double-staining confirmed colocalization and coexpression of TCR zeta-chain and CD3. CONCLUSIONS In frozen biopsies of primary HD TCR zeta-chain was expressed on all reactive CD3-positive cells, both in EBV-positive and EBV-negative cases. This suggests that zeta-chain downregulation is not a likely mechanism whereby neoplastic cells of HD can escape immune surveillance.
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Affiliation(s)
- D F Dukers
- Department of Pathology, Academic Hospital, Vrije Universiteit Amsterdam, The Netherlands.
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Linthorst AC, van Giersbergen PL, Gras M, Versteeg DH, de Jong W. The nigrostriatal dopamine system: role in the development of hypertension in spontaneously hypertensive rats. Brain Res 1994; 639:261-8. [PMID: 8205480 DOI: 10.1016/0006-8993(94)91739-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The effects of lesions in the pars compacta of the substantia nigra of 4-week-old spontaneously hypertensive rats (SHR) and normotensive Wistar-Kyoto rats (WKY) were studied on (a) changes in blood pressure during a period of 6 weeks following lesioning, and (b) dopamine and metabolite concentrations in the caudate nucleus and (c) the in vitro release of [3H]dopamine from caudate nucleus slices 6 weeks after the lesioning. We report here that substantia nigra lesions caused a profound attenuation of the development of hypertension in SHR. No effect on heart rate was observed. Whereas the concentrations of dopamine and 3,4-dihydroxyphenylacetic acid (DOPAC) in the caudate nucleus were not different, the amount of homovanillic acid (HVA) and the ratios DOPAC/dopamine and HVA/dopamine were lower in sham-treated SHR than in sham-treated WKY, indicating a lower turnover of dopamine in SHR. Six weeks after lesioning, the concentrations of dopamine, DOPAC and HVA were decreased in the caudate nucleus (46-66%) of both strains, whereas DOPAC/dopamine and HVA/dopamine ratios tended to be increased in both SHR and WKY. Using an in vitro superfusion method, it was found, that the electrically stimulated release of [3H]dopamine from caudate nucleus slices of sham-treated SHR was lower than from slices of sham-treated WKY at the age of 10 weeks. Six weeks after lesioning, the stimulus-evoked release of [3H]dopamine from the remaining terminals was significantly increased in caudate nucleus slices of SHR, whereas the difference did not reach statistical significance in WKY.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- A C Linthorst
- Department of Medical Pharmacology, Rudolf Magnus Institute, Medical Faculty, University of Utrecht, The Netherlands
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Abstract
A 9-year-old boy developed ataxia, right transient hemiparesis, left transient hemichorea, dysarthria and swallowing difficulties with left velar paralysis following two transient episodes of vomiting, headache and dizziness. Angiography demonstrated an occlusion of the distal part of the basilar artery. Thirty-six previously reported cases of vertebro-basilar arterial occlusion in children were reviewed, with particular regard to possible etiologies.
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Frerebeau P, Dimeglio A, Gras M, Harbi H. Diastematomyelia: report of 21 cases surgically treated by a neurosurgical and orthopedic team. Childs Brain 1983; 10:328-39. [PMID: 6628040 DOI: 10.1159/000120131] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
We studied 21 cases of diastematomyelia associated with myelo-meningocele (3 cases) or congenital spine deformities (18 cases). Analysis of bone and neuraxis abnormalities with special reference to the spinal canal, related to operative findings demonstrate in all cases an embarrassed cord by localized compression or global narrowing of the malformed spinal canal (11 cases), bone spur fixation (13 cases) and tethered cord associated lesions (5 cases). Mechanisms of neural damage and prophylactic value of laminectomy before the orthopedic treatment of the curve during the same operation is discussed.
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Gras M, Crèche J, Chénieux JC, Rideau M. [A comparative study of the effects of selection and environmental factors on alkaloid accumulation in strains of Choisya ternata]. Planta Med 1982; 46:231-5. [PMID: 17396980 DOI: 10.1055/s-2007-971221] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The accumulation of two dihydrofuroquinoline alkaloids has been studied in seventeen strains of Choisya ternata (Rutaceae) initiated from the same tree. The contents of platydesminium and balfourodinium vary in heavy proportions. The effect of some factors (age of the culture, NAA or glucose concentrations of the medium, light intensity) has been studied in two of these strains, one with a low accumulative capacity, the other with a high accumulative capacity. These factors may in certain cases increase the alkaloid contents of both strains, but the induced variability is much lower than that existing naturally between the strains. The strain with a low content always remains inferior to that with a high content. This shows the importance of selecting strains with a high accumulative capacity before studying an optimal production medium.
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Affiliation(s)
- M Gras
- Laboratoire de Biologie Végétale, Faculté de Pharmacie, Tours, France
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Gras M, Bourbotte G, Boluix B, Castan P, Pous JG, Dimeglio A, Frerebeau P. [Scoliotic malformations with or without associated occult spinal dysraphia. A study in 82 children. Current radiological techniques, indications and findings]. J Radiol 1982; 63:383-95. [PMID: 6752402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The possible association of spinal dysraphia with scoliotic malformations was studied in 82 children. Scoliotic malformations are not always the result of dysraphic malformations (diastematomyelia, hydromyelia, intrathecal lipoma, medullary cone ectopia). Recognition of dysraphic scoliotic malformations from among other types of scoliotic malformations can be accomplished before myelography by detecting vertebral malformations on standard films and, if necessary, by computed tomography. Segmental vertebral malformations, affecting vertebral bodies only, do not appear to arise from malformations of nerves. On the contrary, however, dysraphic lesions are always associated with vertebral neural malformations. Of currently employed techniques, only myelography with metrizamide, followed by computed tomography, gives the maximum amount of data concerning the lesions. Even the association of these two techniques does not demonstrate the presence of certain intrathecal fibrous lesions, due to lack of resolution.
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Alegre B, Carrasco D, Breto MD, Gras M, Berenguer J. [Semiquantitative determination of lipoprotein X (Lp-X): its usefulness in differential diagnosis of jaundice]. Rev Clin Esp 1976; 143:79-81. [PMID: 188081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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