1
|
François J, Claus I, Cathenis K, François B, Provenier F, Goossens D, Ballaux PKEW. Ten year experience with the concomitant Maze IV procedure for atrial fibrillation. Acta Chir Belg 2022; 122:99-106. [PMID: 33571418 DOI: 10.1080/00015458.2021.1875641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE The Maze IV (M-IV) procedure is regarded as the golden standard in treatment for surgical ablation of atrial fibrillation (AF); however, long-term follow-up results are scarce. We present our institutional 10-year experience. METHODS We collected data of 117 consecutive patients who have undergone a concomitant M-IV procedure between April 2006 and April 2016. Primary endpoints are freedom of atrial arrhythmias and freedom of atrial arrhythmias off antiarrhythmic drugs (AAD). RESULTS Forty-seven patients (40.2%) had paroxysmal AF. Two-thirds of the procedures included mitral valve surgery. The average follow-up time per patient was 3.8 years (SD 2.8). Freedom of AF at 1 year was 79%, at 5 years freedom of AF was 69% and freedom of AF off AAD was 56%. Predictors of AF recurrence in multivariate analysis were age, preoperative pacemakers, redo cardiac surgery and in-hospital AF. Preoperative PVI ablation was found to be a protective factor. CONCLUSIONS The long-term outcomes of the M-IV procedure are good and remain stable over the years. Results could be improved if follow-up were to be intensified and recurrences dealt with aggressively. Key question: How many patients are free from AF in a 10-year period after concomitant M-IV surgical ablation? Key findings: In the long term around 70% of patients are free of AF with an increasing need for anti-arrhythmic drugs. Take home message: Early to midterm freedom from AF after concomitant M-IV procedure is high and remains stable after 3 years.
Collapse
Affiliation(s)
- Jules François
- Department of Cardiac Surgery, AZ Maria Middelares, Gent, Belgium
| | | | - Koen Cathenis
- Department of Cardiac Surgery, AZ Maria Middelares, Gent, Belgium
| | - Bart François
- Department of Cardiology, AZ Maria Middelares, Gent, Belgium
| | - Frank Provenier
- Department of Cardiology, AZ Maria Middelares, Gent, Belgium
| | | | | |
Collapse
|
2
|
Abstract
There is a paucity of literature describing potential issues related to lateral hand dominance in general and cardiac surgery. Nonetheless, during surgical training left-handedness can produce difficulties in the operating room that are not always understood or accepted by supervising right-handed surgeons. These problems can be easily overcome by practice and anticipation. This report aims to address laterality related issues in cardiac surgery and provide insight into techniques that may aid the left handed surgeon in a right handed dominated surgical environment. An ergonomically different approach, more convenient for the left-handed trainee, may facilitate learning, enhance confidence and increase surgeon satisfaction both for the trainer and trainee.
Collapse
Affiliation(s)
- K. Cathenis
- Department of Cardiac Surgery, AZ Maria Middelares Hospital, Ghent, Belgium
| | - J. Fleerakkers
- Department of Cardiothoracic Surgery, St Antonius Hospital, Nieuwegein, The Netherlands
| | - W. Willaert
- Department of Vascular Surgery, AZ Maria Middelares Hospital, Ghent, Belgium
| | - P. Ballaux
- Department of Cardiac Surgery, AZ Maria Middelares Hospital, Ghent, Belgium
| | - D. Goossens
- Department of Cardiac Surgery, AZ Maria Middelares Hospital, Ghent, Belgium
| | - R. Hamerlijnck
- Department of Cardiac Surgery, AZ Maria Middelares Hospital, Ghent, Belgium
| |
Collapse
|
3
|
Desrames A, Genetet S, Delcourt MP, Goossens D, Mouro-Chanteloup I. Detergent-free isolation of native red blood cell membrane complexes. Biochim Biophys Acta Biomembr 2019; 1862:183126. [PMID: 31738902 DOI: 10.1016/j.bbamem.2019.183126] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 10/29/2019] [Accepted: 11/10/2019] [Indexed: 12/15/2022]
Abstract
Over the past few decades, studies on the red blood cell (RBC) membrane gave rise to increasingly sophisticated although divergent models of its structural organization, since investigations were often performed in denaturing conditions using detergents. To access soluble isolated RBC membrane complexes with the preservation of their interactions and conformations, we decided to apply the recent SMALP (Styrene Maleic Acid Lipid Particles) technology to RBC ghosts. Depending on the ionic strength of buffers in which ghost membranes were resuspended, the isolated proteins within SMALPs could differ on Coomassie-stained gels, but with few changes when compared to ghost membrane SDS lysates. We subsequently produced SMALPs derived from ghosts from two different blood group phenotypes, RhD-positive and RhD-negative, both types of RBC expressing the RhCE proteins but only RhD-positive cells being able to express the RhD proteins. This allowed the isolation, by size exclusion chromatography (SEC), of soluble fractions containing the Rh complex, including the RhD protein or not, within SMALPs. The use a conformation-dependent anti-RhD antibody in immunoprecipitation studies performed on SEC fractions of SMALPs containing Rh proteins clearly demonstrated that the RhD protein, which was only present in SMALPs prepared from RhD-positive RBC ghosts, has preserved at least one important conformational RhD epitope. This approach opens new perspectives in the field of the erythroid membrane study, such as visualization of RBC membrane complexes in native conditions by cryo-electron microscopy (CryoEM) or immuno-tests with conformation-dependent antibodies against blood group antigens on separated and characterized SMALPs containing RBC membrane proteins.
Collapse
Affiliation(s)
- Alexandra Desrames
- Université de Paris, UMR_S1134, BIGR, Inserm, F-75015 Paris, France; Institut National de la transfusion sanguine, F-75015 Paris, France
| | - Sandrine Genetet
- Université de Paris, UMR_S1134, BIGR, Inserm, F-75015 Paris, France; Institut National de la transfusion sanguine, F-75015 Paris, France
| | - Maëlenn Païline Delcourt
- Université de Paris, UMR_S1134, BIGR, Inserm, F-75015 Paris, France; Institut National de la transfusion sanguine, F-75015 Paris, France
| | | | - Isabelle Mouro-Chanteloup
- Université de Paris, UMR_S1134, BIGR, Inserm, F-75015 Paris, France; Institut National de la transfusion sanguine, F-75015 Paris, France.
| |
Collapse
|
4
|
Padalko E, Lagrou K, Delforge ML, Jansens H, Ectors N, Pirnay JP, Klykens J, Sokal E, Muylle L, Libois A, Vanderkelen A, Verbeken G, Matthys C, Goossens D, Hanssens G, Baltes M, Beele H. Biological tests carried out on serum/plasma samples from donors of human body material for transplantation: Belgian experience and practical recommendations. Cell Tissue Bank 2018; 19:681-695. [PMID: 30159824 PMCID: PMC6280847 DOI: 10.1007/s10561-018-9721-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 08/22/2018] [Indexed: 12/22/2022]
Abstract
This paper on the biological tests carried out on serum/plasma samples from donors of human body material (HBM) is the result of a project of the working Group of Superior Health Council of Belgium formed with experts in the field of HBM and infectious serology. Indeed, uncertainty about the interpretation of biological test results currently leads to the sometimes unjustified cancelling of planned donations or the rejection of harvested HBM, whilst more sophisticated diagnostic algorithms would still allow the use of organs or HBM that would otherwise have been rejected. NAT tests will not be discussed in this publication. In the first part some general aspects as the need for a formal agreement between the Tissue Establishment l and the laboratory responsible for the biological testing, but also some specifications regarding testing material, the choice of additional biological tests, and some general aspects concerning interpretation and reporting are discussed. In a second part, detailed information and recommendations concerning the interpretation are presented for each of the mandatory tests (human immunodeficiency virus, hepatitis B virus, hepatitis C virus and syphilis) is presented. A number of not mandatory, but regularly used optional serological tests (e.g. for the detection of antibodies to Toxoplasma gondii, Epstein-Barr virus, human T cell leukemia virus and cytomegalovirus) are also extensively discussed. Although the project was meant to provide clarification and recommendations concerning the Belgian legislation, the majority of recommendations are also applicable to testing of donors of tissues and cells in other (European) countries.
Collapse
Affiliation(s)
- Elizaveta Padalko
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University/University Hospital, De Pintelaan 185, 2P8, 9000, Ghent, Belgium.
- School of Life Sciences, Hasselt University, Agoralaan Building D, 3590, Diepenbeek, Belgium.
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium.
| | - Katrien Lagrou
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- KU Leuven and University Hospitals of Leuven, Herestraat 49, 3000, Louvain, Belgium
| | - Marie-Luce Delforge
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- Université Libre de Bruxelles/Hopital Erasme, Route de Lennik 808, 1070, Brussels, Belgium
| | - Hilde Jansens
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- Antwerp University and Antwerp University Hospital, Wilrijkstraat 10, 2650, Edegem, Belgium
| | - Nadine Ectors
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- KU Leuven and University Hospitals of Leuven, Herestraat 49, 3000, Louvain, Belgium
| | - Jean-Paul Pirnay
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- Laboratory for Molecular and Cellular Technology, Queen Astrid Military Hospital, Bruynstraat 1, 1120, Brussels, Belgium
| | - Johan Klykens
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- KU Leuven and University Hospitals of Leuven, Herestraat 49, 3000, Louvain, Belgium
| | - Etienne Sokal
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- Centre de Thérapie Cellulaire, Cliniques Universitaires St Luc, Université Catholique de Louvain, 10 av Hippocrate, B 1200, Brussels, Belgium
| | - Ludo Muylle
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- Antwerp University and Antwerp University Hospital, Wilrijkstraat 10, 2650, Edegem, Belgium
| | - Agnes Libois
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- CHU Saint-Pierre, Université Libre de Bruxelles, 322 rue haute, 1000, Brussels, Belgium
| | - Alain Vanderkelen
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- Laboratory for Molecular and Cellular Technology, Queen Astrid Military Hospital, Bruynstraat 1, 1120, Brussels, Belgium
| | - Gilbert Verbeken
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- Laboratory for Molecular and Cellular Technology, Queen Astrid Military Hospital, Bruynstraat 1, 1120, Brussels, Belgium
| | - Conny Matthys
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University/University Hospital, De Pintelaan 185, 2P8, 9000, Ghent, Belgium
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
| | - Dominique Goossens
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- Red Cross, Namur, Belgium
| | - Geert Hanssens
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- , Sint-Genesius-Rode, Belgium
| | - Muriel Baltes
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
| | - Hilde Beele
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University/University Hospital, De Pintelaan 185, 2P8, 9000, Ghent, Belgium
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
| |
Collapse
|
5
|
Padalko E, Lagrou K, Delforge ML, Jansens H, Ectors N, Pirnay JP, Klykens J, Sokal E, Muylle L, Libois A, Vanderkelen A, Verbeken G, Matthys C, Goossens D, Hanssens G, Baltes M, Beele H. Correction to: Biological tests carried out on serum/plasma samples from donors of human body material for transplantation: Belgian experience and practical recommendations. Cell Tissue Bank 2018; 19:835-836. [PMID: 30367287 PMCID: PMC6280857 DOI: 10.1007/s10561-018-9728-8] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Elizaveta Padalko
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University/University Hospital, De Pintelaan 185, 2P8, 9000, Ghent, Belgium.
- School of Life Sciences, Hasselt University, Agoralaan Building D, 3590, Diepenbeek, Belgium.
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium.
| | - Katrien Lagrou
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- KU Leuven and University Hospitals of Leuven, Herestraat 49, 3000, Louvain, Belgium
| | - Marie-Luce Delforge
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- Université Libre de Bruxelles/Hopital Erasme, Route de Lennik 808, 1070, Brussels, Belgium
| | - Hilde Jansens
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- Antwerp University and Antwerp University Hospital, Wilrijkstraat 10, 2650, Edegem, Belgium
| | - Nadine Ectors
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- KU Leuven and University Hospitals of Leuven, Herestraat 49, 3000, Louvain, Belgium
| | - Jean-Paul Pirnay
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- Laboratory for Molecular and Cellular Technology, Queen Astrid Military Hospital, Bruynstraat 1, 1120, Brussels, Belgium
| | - Johan Klykens
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- KU Leuven and University Hospitals of Leuven, Herestraat 49, 3000, Louvain, Belgium
| | - Etienne Sokal
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- Centre de Thérapie Cellulaire, Cliniques Universitaires St Luc, Université Catholique de Louvain, 10 av Hippocrate, B 1200, Brussels, Belgium
| | - Ludo Muylle
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- Antwerp University and Antwerp University Hospital, Wilrijkstraat 10, 2650, Edegem, Belgium
| | - Agnes Libois
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- CHU Saint-Pierre, Université Libre de Bruxelles, 322 rue haute, 1000, Brussels, Belgium
| | - Alain Vanderkelen
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- Laboratory for Molecular and Cellular Technology, Queen Astrid Military Hospital, Bruynstraat 1, 1120, Brussels, Belgium
| | - Gilbert Verbeken
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- Laboratory for Molecular and Cellular Technology, Queen Astrid Military Hospital, Bruynstraat 1, 1120, Brussels, Belgium
| | - Conny Matthys
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University/University Hospital, De Pintelaan 185, 2P8, 9000, Ghent, Belgium
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
| | - Dominique Goossens
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- Red Cross, Namur, Belgium
| | - Geert Hanssens
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
- , Sint-Genesius-Rode, Belgium
| | - Muriel Baltes
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
| | - Hilde Beele
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University/University Hospital, De Pintelaan 185, 2P8, 9000, Ghent, Belgium
- Working Group on Cells, Tissues and Organs of the Superior Health Council of Belgium, Brussels, Belgium
| |
Collapse
|
6
|
Vangrinsven E, Girod M, Goossens D, Desquilbet L, Clercx C, Billen F. Comparison of two minimally invasive enilconazole perendoscopic infusion protocols for the treatment of canine sinonasal aspergillosis. J Small Anim Pract 2018; 59:777-782. [PMID: 30362215 DOI: 10.1111/jsap.12933] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 07/31/2018] [Accepted: 08/08/2018] [Indexed: 11/28/2022]
Abstract
OBJECTIVES To compare two minimally invasive enilconazole infusion protocols for the treatment of canine sinonasal aspergillosis and evaluate the importance of complete endoscopic debridement in determining first treatment success rate. MATERIALS AND METHODS Data for 48 dogs with confirmed sinonasal aspergillosis treated with endoscopic debridement followed by per-endoscopic enilconazole infusion were collected. Twenty-four dogs were treated according to the previously published 1-hour infusion protocol and 24 dogs underwent a simplified 15-minute infusion protocol. Completeness of debridement, evaluated as partial or complete at the end of the procedure and outcome after one or several treatments were assessed in all dogs. Multi-variable analysis was performed to derive odds ratios and 95% confidence intervals. RESULTS The median duration of the simplified protocol - 92∙3 minutes (range 40 to 140) - was substantially shorter than the duration of the previous protocol - 201∙3 minutes (range 120 to 265). First treatment success rates were 58 and 62∙5% for the previous and simplified protocol, respectively. Overall treatment success rate was similar in both groups (96%). Complete debridement was associated with an improved first treatment success rate compared to partial debridement. CLINICAL SIGNIFICANCE The simplified protocol is a valid alternative approach to the treatment of sinonasal aspergillosis. Completeness of endoscopic debridement before infusion is an important step for the success of treatment in canine sinonasal aspergillosis.
Collapse
Affiliation(s)
- E Vangrinsven
- Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Liège, 4000 Liège, Belgium
| | - M Girod
- Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Liège, 4000 Liège, Belgium
| | - D Goossens
- Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Liège, 4000 Liège, Belgium
| | - L Desquilbet
- Clinical Epidemiology and Biostatistics Unit, National Veterinary School of Alfort, University of Paris-Est, 94704 Paris, France
| | - C Clercx
- Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Liège, 4000 Liège, Belgium
| | - F Billen
- Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Liège, 4000 Liège, Belgium
| |
Collapse
|
7
|
Fattal C, Albert T, Le-Chapelain L, Gault D, Goossens D, Perrouin-Verbe B. A recent survey relating to the organization of the French network of spinal cord injuries care units. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.1183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
8
|
Waked K, Ballaux P, Goossens D, Cathenis K. The 'Two Bridges Technique' for sternal wound closure. The use of vacuum-assisted closure for the treatment of deep sternal wound defects: a centre-specific technique. Int Wound J 2018; 15:198-204. [PMID: 29430829 DOI: 10.1111/iwj.12823] [Citation(s) in RCA: 2] [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: 05/29/2017] [Revised: 08/13/2017] [Accepted: 08/18/2017] [Indexed: 12/17/2022] Open
Abstract
The objective is to describe the 'Two Bridges Technique' (TBT), which has proven to be successful and has been the standard technique at our centre for vacuum-assisted closure (VAC) of post-sternotomy mediastinitis. An extensive literature search was performed in four databases to identify all published articles concerning VAC for post-sternotomy mediastinitis. Several VAC methods have been used; however, no article has described our specific technique. TBT consists of a two-bridges construction using two types of foam with different pore sizes, which ensures an equally divided negative pressure over the wound bed and stabilisation of the chest. This guarantees a continuous treatment of the sternal defect and prevents foam displacement. It maintains an airtight seal that prevents skin maceration and provides enough protection to avoid right ventricular rupture. The main advantage of TBT is the prevention of shifting or tilting of the foam during chest movements such as breathing or couching. Along with targeted antibiotic treatment, this alternative VAC technique can be an asset in the sometimes cumbersome treatment of post-sternotomy mediastinitis.
Collapse
Affiliation(s)
- Karl Waked
- Department of Cardiac Surgery, AZ Maria Middelares Gent, Ghent, Belgium
| | - Philippe Ballaux
- Department of Cardiac Surgery, AZ Maria Middelares Gent, Ghent, Belgium
| | | | - Koen Cathenis
- Department of Cardiac Surgery, AZ Maria Middelares Gent, Ghent, Belgium
| |
Collapse
|
9
|
Rodenbach MP, Billemont B, Caldarella P, Mbattang G, Belot K, Goossens D. Génotypage érythrocytaire chez les donneurs de sang : bilan après 15 mois. Transfus Clin Biol 2017. [DOI: 10.1016/j.tracli.2017.06.227] [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]
|
10
|
Claus I, Cathenis K, Goossens D, Ballaux P. Ventricular septal rupture: successful delayed repair. Acta Chir Belg 2016; 116:383-385. [PMID: 27472167 DOI: 10.1080/00015458.2016.1199352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Ventricular septal rupture (VSR) occurs in approximately 1% of the patients who experience an acute myocardial infarction. The operative mortality of VSR repair decreases if surgery can be delayed until the infarct has healed and tissue strength improved. Because of heart failure or impending cardiogenic shock, surgical treatment can often not be delayed. We present a case in which a delayed repair of a VSR was possible. The patient was initially stabilized with an intra-aortic balloon pump. She was discharged and readmitted 5 weeks later for definitive repair. Repair was performed, according to the Daggett technique, using a bovine pericardial patch and a mitral annuloplasty was carried out to correct for the regurgitation. Recovery was uneventful. Cardiac ultrasound examination at discharge showed no residual defect.
Collapse
Affiliation(s)
- Isabelle Claus
- Department of Cardiac Surgery, AZ Maria Middelares, Ghent, Belgium
| | - Koen Cathenis
- Department of Cardiac Surgery, AZ Maria Middelares, Ghent, Belgium
| | | | - Philippe Ballaux
- Department of Cardiac Surgery, AZ Maria Middelares, Ghent, Belgium
| |
Collapse
|
11
|
Marques C, Bettens K, Goossens D, Heyrman L, Heusdens C, Kupers S, Berwouts S, Van Barel D, Rotthier A, Del-Favero J. Detection of NRAS, KRAS and BRAF mutations in FFPE derived DNA with a novel targeted resequencing-based diagnostics assay. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw380.16] [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
|
12
|
Al-Samir S, Goossens D, Cartron JP, Nielsen S, Scherbarth F, Steinlechner S, Gros G, Endeward V. Maximal Oxygen Consumption Is Reduced in Aquaporin-1 Knockout Mice. Front Physiol 2016; 7:347. [PMID: 27559317 PMCID: PMC4978734 DOI: 10.3389/fphys.2016.00347] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [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: 05/09/2016] [Accepted: 07/29/2016] [Indexed: 12/01/2022] Open
Abstract
We have measured maximal oxygen consumption (V˙O2,max) of mice lacking one or two of the established mouse red-cell CO2 channels AQP1, AQP9, and Rhag. We intended to study whether these proteins, by acting as channels for O2, determine O2 exchange in the lung and in the periphery. We found that V˙O2,max as determined by the Helox technique is reduced by ~16%, when AQP1 is knocked out, but not when AQP9 or Rhag are lacking. This figure holds for animals respiring normoxic as well as hypoxic gas mixtures. To see whether the reduction of V˙O2,max is due to impaired O2 uptake in the lung, we measured carotid arterial O2 saturation (SO2) by pulse oximetry. Neither under normoxic (inspiratory O2 21%) nor under hypoxic conditions (11% O2) is there a difference in SO2 between AQP1null and WT mice, suggesting that AQP1 is not critical for O2 uptake in the lung. The fact that the % reduction of V˙O2,max is identical in normoxia and hypoxia indicates moreover that the limitation of V˙O2,max is not due to an O2 diffusion problem, neither in the lung nor in the periphery. Instead, it appears likely that AQP1null animals exhibit a reduced V˙O2,max due to the reduced wall thickness and muscle mass of the left ventricles of their hearts, as reported previously. We conclude that very likely the properties of the hearts of AQP1 knockout mice cause a reduced maximal cardiac output and thus cause a reduced V˙O2,max, which constitutes a new phenotype of these mice.
Collapse
Affiliation(s)
- Samer Al-Samir
- Vegetative Physiologie 4220, Abt. Molekular-und Zellphysiologie, Medizinische Hochschule Hannover Hannover, Germany
| | - Dominique Goossens
- Institut National de la Transfusion Sanguine-Institut National de la Santé et de la Recherche Médicale UMR_S1134 Paris, France
| | - Jean-Pierre Cartron
- Institut National de la Transfusion Sanguine-Institut National de la Santé et de la Recherche Médicale UMR_S1134 Paris, France
| | - Søren Nielsen
- Biomedicine, Department Health Science and Technology, Aalborg University Aalborg, Denmark
| | - Frank Scherbarth
- Institut für Zoologie, Tierärztliche Hochschule Hannover Hannover, Germany
| | | | - Gerolf Gros
- Vegetative Physiologie 4220, Abt. Molekular-und Zellphysiologie, Medizinische Hochschule Hannover Hannover, Germany
| | - Volker Endeward
- Vegetative Physiologie 4220, Abt. Molekular-und Zellphysiologie, Medizinische Hochschule Hannover Hannover, Germany
| |
Collapse
|
13
|
Crahay F, Goossens D, Gillet P, Rapaille A, Lambermont M. Restless legs syndrome in Belgian repeat blood donors, no correlation with ferritin level. Transfus Clin Biol 2016; 23:111-2. [DOI: 10.1016/j.tracli.2016.01.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 01/05/2016] [Indexed: 11/25/2022]
|
14
|
Leetham M, DeWitt J, Buck B, Goossens D, Teng Y, Pollard J, McLaurin B, Gerads R, Keil D. Oxidative stress and lung pathology following geogenic dust exposure. J Appl Toxicol 2016; 36:1276-83. [PMID: 26922875 DOI: 10.1002/jat.3297] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 12/26/2015] [Accepted: 01/05/2016] [Indexed: 01/14/2023]
Abstract
This study was designed to evaluate markers of systemic oxidative stress and lung histopathology following subacute exposure to geogenic dust with varying heavy metal content collected from a natural setting prone to wind erosion and used heavily for off-road vehicle recreation. Adult female B6C3F1 mice were exposed to several concentrations of dust collected from seven different types of surfaces at the Nellis Dunes Recreation Area in Clark County, Nevada, designated here as CBN 1-7. Dust representing each of the seven surface types, with an average median diameter of 4.2 μm, was selected and administered via oropharyngeal aspiration to mice at concentrations from 0.01 to 100 mg of dust kg(-1) of body weight. Exposures were given four times spaced a week apart over a 28 day period to mimic a month of weekend exposures. Lung pathology was evaluated while plasma markers of oxidative stress included levels of reactive oxygen and nitrogen species, superoxide dismutase, total antioxidant capacity and total glutathione. Overall, results of these assays to evaluate markers of oxidative stress indicate that no single CBN surface type was able to consistently induce markers of systemic oxidative stress at a particular dose or in a dose-response manner. All surface types were able to induce some level of lung inflammation, typically at the highest exposure levels. These data suggest that dust from the Nellis Dunes Recreation Area may present a potential health risk, but additional studies are necessary to characterize the full extent of health risks to humans. Copyright © 2016 John Wiley & Sons, Ltd.
Collapse
Affiliation(s)
- M Leetham
- Department of Microbiology and Immunology, Montana State University, Bozeman, Montana, 59717, USA
| | - J DeWitt
- Department of Pharmacology and Toxicology, East Carolina University, Greenville, North Carolina, 27834, USA
| | - B Buck
- Department of Geoscience, University of Nevada, Las Vegas, Nevada, 89154, USA
| | - D Goossens
- Department of Geoscience, University of Nevada, Las Vegas, Nevada, 89154, USA.,Department of Earth and Environmental Sciences, KU, Leuven, Belgium
| | - Y Teng
- Department of Geoscience, University of Nevada, Las Vegas, Nevada, 89154, USA
| | - J Pollard
- Department of Geoscience, University of Nevada, Las Vegas, Nevada, 89154, USA
| | - B McLaurin
- Department of Environmental, Geographical and Geological Sciences, Bloomsburg University of Pennsylvania, Bloomsburg, Pennsylvania, 17815, USA
| | - R Gerads
- Brooks Rand Labs, LLC, Bothell, Western Australia, 98011, USA
| | - D Keil
- Department of Microbiology and Immunology, Montana State University, Bozeman, Montana, 59717, USA
| |
Collapse
|
15
|
Dewulf M, Cathenis K, Goossens D. Conservative Treatment of Left Ventricular Free Wall Rupture. Acta Chir Belg 2015; 115:433-5. [PMID: 26763845 DOI: 10.1080/00015458.2015.11681148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
We present a case of post-infarction Left Ventricular Free Wall Rupture (LVFWR), in which conservative treatment was successfully applied. A 48-year old male patient presented at our emergency department with abdominal pain and a clinical presentation of shock. There had been an episode of chest pain three days before admission. Electrocardiogram was suggestive for old myocardial infarction. Coronarography revealed an occlusion of a diagonal branch. Computed Tomography scan was performed to exclude a rupturing aortic aneurysm, but a large pericardial effusion was seen. Echocardiography confirmed the diagnosis of cardiac tamponade and pericardiocentesis was performed. Conservative treatment consisting of bed rest, blood pressure control and beta-blocker therapy was applied, allowing the patient to be discharged after 10 days. The diagnosis of LVFWR was confirmed by cardiac magnetic resonance imaging.Surgery is considered as the golden standard in treatment of LVFWR. This case illustrates that in selected patients conservative treatment is possible.
Collapse
|
16
|
Goossens D, da Silva N, Metral S, Cortes U, Callebaut I, Picot J, Mouro-Chanteloup I, Cartron JP. Mice expressing RHAG and RHD human blood group genes. PLoS One 2013; 8:e80460. [PMID: 24260394 PMCID: PMC3832391 DOI: 10.1371/journal.pone.0080460] [Citation(s) in RCA: 7] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Accepted: 10/02/2013] [Indexed: 11/18/2022] Open
Abstract
Anti-RhD prophylaxis of haemolytic disease of the fetus and newborn (HDFN) is highly effective, but as the suppressive mechanism remains uncertain, a mouse model would be of interest. Here we have generated transgenic mice expressing human RhAG and RhD erythrocyte membrane proteins in the presence and, for human RhAG, in the absence, of mouse Rhag. Human RhAG associates with mouse Rh but not mouse Rhag on red blood cells. In Rhag knockout mice transgenic for human RHAG, the mouse Rh protein is “rescued” (re-expressed), and co-immunoprecipitates with human RhAG, indicating the presence of hetero-complexes which associate mouse and human proteins. RhD antigen was expressed from a human RHD gene on a BAC or from RHD cDNA under control of β-globin regulatory elements. RhD was never observed alone, strongly indicative that its expression absolutely depends on the presence of transgenic human RhAG. This first expression of RhD in mice is an important step in the creation of a mouse model of RhD allo-immunisation and HDFN, in conjunction with the Rh-Rhag knockout mice we have developed previously.
Collapse
Affiliation(s)
- Dominique Goossens
- Institut National de la Transfusion Sanguine, Paris, France
- Inserm UMR_S 665, Paris, France
- Université Paris Diderot, Sorbonne Paris Cité, UMR-S665, Paris, France
- * E-mail:
| | - Nelly da Silva
- Institut National de la Transfusion Sanguine, Paris, France
| | - Sylvain Metral
- Institut National de la Transfusion Sanguine, Paris, France
| | - Ulrich Cortes
- Institut National de la Transfusion Sanguine, Paris, France
| | - Isabelle Callebaut
- IInstitut de Minéralogie et de Physique des milieux Condensés UMR 7590 CNRS, Université Pierre et Marie Curie, Paris, France
| | - Julien Picot
- Institut National de la Transfusion Sanguine, Paris, France
- Inserm UMR_S 665, Paris, France
- Université Paris Diderot, Sorbonne Paris Cité, UMR-S665, Paris, France
| | - Isabelle Mouro-Chanteloup
- Institut National de la Transfusion Sanguine, Paris, France
- Inserm UMR_S 665, Paris, France
- Université Paris Diderot, Sorbonne Paris Cité, UMR-S665, Paris, France
| | | |
Collapse
|
17
|
Delleci C, Goossens D, Shao E, Nozères A, Forest K, Lassalle R, Denys P, Joseph PA, de Sèze M. Évolution naturelle clinique, urodynamique et de marqueurs inflammatoires et neurotrophiques urinaires chez 8 patients blessés médullaires suivis dès le traumatisme et jusqu’au 6e mois. Ann Phys Rehabil Med 2012. [DOI: 10.1016/j.rehab.2012.07.951] [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]
|
18
|
Le Nué R, Harper L, De Sèze M, Bouteiller C, Goossens D, Dobremez E. Evolution of the management of acquired neurogenic bladder in children using intradetrusor botulinum toxin type A injections: 5-year experience and perspectives. J Pediatr Urol 2012; 8:497-503. [PMID: 22115699 DOI: 10.1016/j.jpurol.2011.09.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [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: 03/24/2011] [Accepted: 09/29/2011] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To report the clinical and urodynamic results of repeated intradetrusor botulinum toxin type A injections in children with an acquired neurogenic bladder. PATIENTS AND METHOD We reviewed the data of 8 patients presenting an acquired neurogenic bladder treated between 2005 and 2010. Their mean age was 12.4 years old (range: 5-18). They were all on clean intermittent catheterization. All patients presented detrusor overactivity resistant to oral anticholinergic treatment. They received between 2 and 6 injections at a dose of 12 botulinum toxin units (BU)/kg (maximum 300 BU). Cystometry was performed 4-8 weeks after treatment. RESULTS Five patients became completely dry, 2 were only rarely wet, and data are lacking for 1 patient. Febrile urinary tract infections ceased after 1 or 2 injections. The mean maximal detrusor pressure decreased below 40 cmH(2)O after 1, 2 and 3 injections. The normalized safe capacity rose significantly after 1, 2 and 3 injections. The normalized maximal bladder capacity rose similarly after 1, 2 and 3 injections although not always significantly. CONCLUSION Intradetrusor botulinum toxin-A injections significantly reduce detrusor pressure and can be repeated with efficacy. They have their place in between anticholinergic treatment and surgery. The procedure could be simplified and the dosage reduced.
Collapse
Affiliation(s)
- R Le Nué
- Service de Chirurgie Pédiatrique, Hôpital des Enfants, CHU de Bordeaux, Place Amélie Raba Léon, 33 076 Bordeaux, France.
| | | | | | | | | | | |
Collapse
|
19
|
Gelis A, Daures JP, Gault D, Bouchema T, Pedelucq JP, Maupas E, Goossens D, Pelissier J, Fattal C. Auto-évaluation des mesures de prévention cutanées chez les personnes lésées médullaires : validation de la version française du SMnac. Ann Phys Rehabil Med 2012. [DOI: 10.1016/j.rehab.2012.07.348] [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]
|
20
|
Gelis A, Daures JP, Gault D, Bouchema T, Pedelucq JP, Maupas E, Goossens D, Pelissier J, Fattal C. Evaluating self-reported pressure ulcer prevention measures in person with spinal cord injury using the SMnac: Validation of the French version. Ann Phys Rehabil Med 2012. [DOI: 10.1016/j.rehab.2012.07.354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
21
|
Beliën T, Bangels E, Peusens G, Goossens D, Berkvens N, Viaene N. TOWARDS IMPROVED CONTROL OF WOOLLY APPLE APHID (ERIOSOMA LANIGERUM) IN INTEGRATED FRUIT PRODUCTION. ACTA ACUST UNITED AC 2011. [DOI: 10.17660/actahortic.2011.917.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
22
|
Hudspeth J, Goossens D, Gutmann M, Welberry R. Short range order in ferroelectric triglycine sulphate. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311089574] [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: 11/10/2022] Open
|
23
|
Lamothe G, Muller F, Vital JM, Goossens D, Barat M. Evolution of spinal cord injuries due to cervical canal stenosis without radiographic evidence of trauma (SCIWORET): A prospective study. Ann Phys Rehabil Med 2011; 54:213-24. [DOI: 10.1016/j.rehab.2011.02.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2010] [Revised: 02/11/2011] [Accepted: 02/12/2011] [Indexed: 11/28/2022]
|
24
|
Cathenis K, Goossens D, Vertriest R, Coppens M, Hamerlijnck R. Breast Infarction Due to Calciphylaxis After Coronary Artery Bypass Grafting. Ann Thorac Surg 2011; 91:1603-6. [DOI: 10.1016/j.athoracsur.2010.10.088] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2010] [Revised: 10/05/2010] [Accepted: 10/27/2010] [Indexed: 11/30/2022]
|
25
|
Gélis A, Stéfan A, Colin D, Albert T, Gault D, Goossens D, Perrouin-Verbe B, Fattal C, Pelissier J, Coudeyre E. Therapeutic education in persons with spinal cord injury: A review of the literature. Ann Phys Rehabil Med 2011; 54:189-210. [DOI: 10.1016/j.rehab.2011.03.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2010] [Revised: 03/13/2011] [Accepted: 03/17/2011] [Indexed: 11/24/2022]
|
26
|
Chartier-Kastler E, Lauge I, Ruffion A, Goossens D, Charvier K, Biering-Sørensen F. Safety of a new compact catheter for men with neurogenic bladder dysfunction: a randomised, crossover and open-labelled study. Spinal Cord 2011; 49:844-50. [DOI: 10.1038/sc.2011.5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
27
|
Goossens D, Bangels E, Belien T, Schoevaerts C, De Maeyer L. Optimal profit of the parasitation by Aphelinus mali in an IPM complementary strategy for the control of Eriosoma lanigerum. Commun Agric Appl Biol Sci 2011; 76:457-465. [PMID: 22696953] [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: 06/01/2023]
Abstract
During summer the parasitoid Aphelinus mali may certainly reduce the infestation of woolly apple aphid (Eriosoma lanigerum), but studies on the single interaction rarely indicate sufficient biological control in the period May-June. In this period chemical control by spirotetramat or pirimicarb remains indispensable in order to anticipate on dense migration waves and subsequent colonization of extension shoots by E. lanigerum. The limited parasitation by A. mali around flowering is linked with a delayed emergence from diapause and with a slower reproduction rate than its host. In 2010 and 2011 the first adult flights monitored on yellow sticky traps corresponded perfectly with the currently used prediction models for A. mali. Further accurate monitoring all along the season enabled also to determine a well defined endo-parasitic phase of A. mali occurring after the small peak observed around flowering. During this endo-parasitic phase A. mali larvae reside inside their mummified host. Compounds with higher acute toxicity on A. mali adults, like chloronicotinyl insecticides (CNI's), are preferably positioned here. Selectivity in the time can then be claimed. Respecting this principle, the further parasitation potential of A. mali in summer is not hampered. Preservation of the first peak of flights of A. mali in the pre-flowering period is essential for an exponential flight increase. This is essential for the parasitation of E. lanigerum in summer, which constitutes a valuable complement in the integrated control strategy.
Collapse
Affiliation(s)
- D Goossens
- Pcfruit vzw, Zoology Department, Fruittuinweg 1, BE-3800 Sint-Truiden, Belgium
| | | | | | | | | |
Collapse
|
28
|
Deprez L, Weckhuysen S, Holmgren P, Suls A, Van Dyck T, Goossens D, Del-Favero J, Jansen A, Verhaert K, Lagae L, Jordanova A, Van Coster R, Yendle S, Berkovic SF, Scheffer I, Ceulemans B, De Jonghe P. Clinical spectrum of early-onset epileptic encephalopathies associated with STXBP1 mutations. Neurology 2010; 75:1159-65. [DOI: 10.1212/wnl.0b013e3181f4d7bf] [Citation(s) in RCA: 138] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
29
|
Baets J, Deconinck T, Smets K, Goossens D, Van den Bergh P, Dahan K, Schmedding E, Santens P, Rasic VM, Van Damme P, Robberecht W, De Meirleir L, Michielsens B, Del-Favero J, Jordanova A, De Jonghe P. Mutations in SACS cause atypical and late-onset forms of ARSACS. Neurology 2010; 75:1181-8. [DOI: 10.1212/wnl.0b013e3181f4d86c] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
30
|
Paściak M, Goossens D, Whitfield R, Withers R, Welberry TR. Local order and diffuse scattering in ferroelectric oxides. Acta Crystallogr A 2010. [DOI: 10.1107/s0108767310095152] [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: 11/10/2022] Open
|
31
|
Goossens D, Trinh-Trang-Tan MM, Debbia M, Ripoche P, Vilela-Lamego C, Louache F, Vainchenker W, Colin Y, Cartron JP. Generation and characterisation of Rhd and Rhag null mice. Br J Haematol 2009; 148:161-72. [PMID: 19807729 DOI: 10.1111/j.1365-2141.2009.07928.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Mouse Rhd* and Rhag* genes were targeted using insertional vectors; the resulting knockout mice, and double-knockout descendants, were analysed. Rhag glycoprotein deficiency entailed defective assembly of the erythroid Rh complex with complete loss of Rh and intercellular adhesion molecule 4 (ICAM-4), but not CD47, expression. Absence of the Rh protein induced a loss of ICAM-4, and only a moderate reduction of Rhag expression. Double knockout phenotype was similar to that of Rhag targeted mice. Rhd and Rhag deficient mice exhibited neither the equivalent of human Rh(null) haemolytic anaemia nor any clinical or cellular abnormalities. Rhd-/- and Rhag-/- erythrocytes showed decreased basal adhesion to an endothelial cell line resulting from defective ICAM-4 membrane expression. There was no difference in recovery from phenylhydrazine-induced haematopoietic stress for double knockout mice as compared to controls, suggesting that ICAM-4 might be dispensable during stress erythropoiesis. Ammonia and methylammonia transport in erythrocytes was severely impaired in Rhag-/- but only slightly in Rhd-/- animals that significantly expressed Rhag, supporting the view that RhAG and Rhag, but not Rh, may act as ammonium transporters in human and mouse erythrocytes. These knockout mice should prove useful for further dissecting the physiological roles of Rh and Rhag proteins in the red cell membrane.
Collapse
Affiliation(s)
- Dominique Goossens
- Institut National de la Transfusion Sanguine, 6 rue Alexandre Cabanel, Paris, France.
| | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Lauf PK, Adragna NC, Goossens D, Cartron J. Role of Rh (rhesus) complex in K‐Cl cotransport (KCC) regulation in red blood cells (RBCs) of Rh and Rh‐associated glycoprotein (RhAg) knockout (KO) mice. FASEB J 2009. [DOI: 10.1096/fasebj.23.1_supplement.797.5] [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] [Indexed: 11/11/2022]
Affiliation(s)
- Peter K. Lauf
- Cell Biophysics Group
- Department of Pharmacology and ToxicologyWright State UniversityBoonshoft School of MedicineDaytonOH
| | - Norma C. Adragna
- Cell Biophysics Group
- Department of Pharmacology and ToxicologyWright State UniversityBoonshoft School of MedicineDaytonOH
| | | | | |
Collapse
|
33
|
Goossens D, Dousse M, Ventura M, Fattal C. Chronic neuropathic pain in spinal cord injury patients: What is the impact of social and environmental factors on care management? Ann Phys Rehabil Med 2009; 52:173-9. [DOI: 10.1016/j.rehab.2008.12.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2008] [Accepted: 12/17/2008] [Indexed: 10/21/2022]
|
34
|
Hilgert N, Alasti F, Dieltjens N, Pawlik B, Wollnik B, Uyguner O, Delmaghani S, Weil D, Petit C, Danis E, Yang T, Pandelia E, Petersen MB, Goossens D, Favero JD, Sanati MH, Smith RJH, Van Camp G. Mutation analysis of TMC1 identifies four new mutations and suggests an additional deafness gene at loci DFNA36 and DFNB7/11. Clin Genet 2008; 74:223-32. [PMID: 18616530 DOI: 10.1111/j.1399-0004.2008.01053.x] [Citation(s) in RCA: 48] [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] [Indexed: 11/27/2022]
Abstract
Hearing loss is the most frequent sensorineural disorder affecting 1 in 1000 newborns. In more than half of these babies, the hearing loss is inherited. Hereditary hearing loss is a very heterogeneous trait with about 100 gene localizations and 44 gene identifications for non-syndromic hearing loss. Transmembrane channel-like gene 1 (TMC1) has been identified as the disease-causing gene for autosomal dominant and autosomal recessive non-syndromic hearing loss at the DFNA36 and DFNB7/11 loci, respectively. To date, 2 dominant and 18 recessive TMC1 mutations have been reported as the cause of hearing loss in 34 families. In this report, we describe linkage to DFNA36 and DFNB7/11 in 1 family with dominant and 10 families with recessive non-syndromic sensorineural hearing loss. In addition, mutation analysis of TMC1 was performed in 51 familial Turkish patients with autosomal recessive hearing loss. TMC1 mutations were identified in seven of the families segregating recessive hearing loss. The pathogenic variants we found included two known mutations, c.100C>T and c.1165C>T, and four new mutations, c.2350C>T, c.776+1G>A, c.767delT and c.1166G>A. The absence of TMC1 mutations in the remaining six linked families implies the presence of mutations outside the coding region of this gene or alternatively at least one additional deafness-causing gene in this region. The analysis of copy number variations in TMC1 as well as DNA sequencing of 15 additional candidate genes did not reveal any proven pathogenic changes, leaving both hypotheses open.
Collapse
Affiliation(s)
- N Hilgert
- Department of Medical Genetics, University of Antwerp, Antwerp, Belgium
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Venken T, Alaerts M, Souery D, Goossens D, Sluijs S, Navon R, Van Broeckhoven C, Mendlewicz J, Del-Favero J, Claes S. Chromosome 10q harbors a susceptibility locus for bipolar disorder in Ashkenazi Jewish families. Mol Psychiatry 2008; 13:442-50. [PMID: 17579605 DOI: 10.1038/sj.mp.4002039] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
We report the results of a 10 cM density genome-wide scan and further fine mapping of three chromosomal candidate regions in 10 Belgian multigenerational families with bipolar (BP) disorder. This two-stage approach revealed significant evidence for linkage on chromosome 10q21.3-10q22.3, showing a maximum multipoint parametric heterogeneity logarithm of odds (HLOD) score of 3.28 and a nonparametric linkage (NPL) score of 4.00. Most of the chromosome 10q evidence was derived from a single, large Ashkenazi Jewish pedigree. Haplotype analysis in this pedigree shows that the patients share a 14-marker haplotype, defining a chromosomal candidate region of 19.2 cM. This region was reported previously as a candidate region for BP disorder in several independent linkage analysis studies and in one large meta-analysis. It was also implicated in a linkage study on schizophrenia (SZ) in Ashkenazi Jewish families. Additionally, we found suggestive evidence for linkage on chromosome 19q13.2-13.4 (HLOD 2.01, NPL 1.09) and chromosome 7q21-q22 (HLOD 1.45, NPL 2.28). Together, these observations suggest that a gene located on chromosome 10q21.3-10q22.3 is underlying the susceptibility both for SZ and for BP disorder in at least the Ashkenazi Jewish population.
Collapse
Affiliation(s)
- T Venken
- Department of Molecular Genetics, Flanders Institute for Biotechnology VIB, Antwerpen, Belgium
| | | | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Gijselinck I, van der Zee J, Engelborghs S, Goossens D, Peeters K, Mattheijssens M, Corsmit E, Del-Favero J, De Deyn PP, Van Broeckhoven C, Cruts M. Progranulin locus deletion in frontotemporal dementia. Hum Mutat 2008; 29:53-8. [PMID: 18157829 DOI: 10.1002/humu.20651] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Ubiquitin-positive, tau-negative, frontotemporal dementia (FTD) is caused by null mutations in progranulin (PGRN; HUGO gene symbol GRN), suggesting a haploinsufficiency mechanism. Since whole gene deletions also lead to the loss of a functional allele, we performed systematic quantitative analyses of PGRN in a series of 103 Belgian FTD patients. We identified in one patient (1%) a genomic deletion that was absent in 267 control individuals. The deleted segment was between 54 and 69 kb in length and comprised PGRN and two centromeric neighboring genes RPIP8 (HUGO gene symbol RUNDC3A) and SLC25A39. The patient presented clinically with typical FTD without additional symptoms, consistent with haploinsufficiency of PGRN being the only gene contributing to the disease phenotype. This study demonstrates that reduced PGRN in absence of mutant protein is sufficient to cause neurodegeneration and that previously reported PGRN mutation frequencies are underestimated.
Collapse
Affiliation(s)
- I Gijselinck
- Neurodegenerative Brain Diseases Group, Department of Molecular Genetics, Flanders Institute for Biotechnology (VIB), University of Antwerp, Antwerpen, Belgium
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Deprez L, Peeters K, Van Paesschen W, Claeys KG, Claes LRF, Suls A, Audenaert D, Van Dyck T, Goossens D, Del-Favero J, De Jonghe P. Familial occipitotemporal lobe epilepsy and migraine with visual aura: Linkage to chromosome 9q. Neurology 2007; 68:1995-2002. [PMID: 17460155 DOI: 10.1212/01.wnl.0000262764.78511.17] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.8] [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: 11/15/2022] Open
Abstract
OBJECTIVE To map the disease-causing locus in a large Belgian family with occipitotemporal lobe epilepsy associated with migraine with visual aura and to describe the clinical, electrophysiologic, and imaging characteristics. METHODS DNA samples from 21 family members were obtained and an 8 cM density genome-wide scan was performed. The authors interviewed 21 individuals and performed interictal EEG in 14 and brain MRI in 13 individuals. RESULTS Nine at risk family members and one deceased individual had epilepsy with occipital and temporal lobe symptomatology, variable age at onset, usually good prognosis, no epileptic EEG features, and normal brain MRI. Five of the 10 patients had a history of migraine with aura (p = 0.0026). Seizures and migraine attacks occurred as separate episodes in all but one patient. Three patients described light flashes both as epileptic and migraine aura. Epilepsy and migraine started at the same age in three patients and remitted simultaneously in two. The epileptic phenotype had a dominant mode of inheritance with a reduced penetrance of 75%. A conclusive two-point lod score of 3.3 was obtained for marker D9S257 at recombination fraction zero. Haplotype analysis defined a candidate region of 9.95 cM (5.96 Mb) between markers GATA152H04 and D9S253 located at chromosome 9q21-q22 based upon recombinations in affected individuals. CONCLUSIONS The clinical association in this family of occipitotemporal lobe epilepsy and migraine with visual aura and the conclusive linkage of the occipitotemporal lobe epilepsy/migraine with aura trait to a single locus suggests a common monogenic gene defect.
Collapse
Affiliation(s)
- L Deprez
- Neurogenetics Group, Department of Molecular Genetics, VIB, Antwerpen, Belgium
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Deprez L, Peeters K, Van Paesschen W, Claeys KG, Claes LRF, Suls A, Audenaert D, Van Dyck T, Goossens D, Del-Favero J, De Jonghe P. Familial occipitotemporal lobe epilepsy and migraine with visual aura: linkage to chromosome 9q. Neurology 2007; 70:896; author reply 896-7. [PMID: 17460155 DOI: 10.1212/01.wnl.0000307659.43996.ca] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE To map the disease-causing locus in a large Belgian family with occipitotemporal lobe epilepsy associated with migraine with visual aura and to describe the clinical, electrophysiologic, and imaging characteristics. METHODS DNA samples from 21 family members were obtained and an 8 cM density genome-wide scan was performed. The authors interviewed 21 individuals and performed interictal EEG in 14 and brain MRI in 13 individuals. RESULTS Nine at risk family members and one deceased individual had epilepsy with occipital and temporal lobe symptomatology, variable age at onset, usually good prognosis, no epileptic EEG features, and normal brain MRI. Five of the 10 patients had a history of migraine with aura (p = 0.0026). Seizures and migraine attacks occurred as separate episodes in all but one patient. Three patients described light flashes both as epileptic and migraine aura. Epilepsy and migraine started at the same age in three patients and remitted simultaneously in two. The epileptic phenotype had a dominant mode of inheritance with a reduced penetrance of 75%. A conclusive two-point lod score of 3.3 was obtained for marker D9S257 at recombination fraction zero. Haplotype analysis defined a candidate region of 9.95 cM (5.96 Mb) between markers GATA152H04 and D9S253 located at chromosome 9q21-q22 based upon recombinations in affected individuals. CONCLUSIONS The clinical association in this family of occipitotemporal lobe epilepsy and migraine with visual aura and the conclusive linkage of the occipitotemporal lobe epilepsy/migraine with aura trait to a single locus suggests a common monogenic gene defect.
Collapse
Affiliation(s)
- L Deprez
- Neurogenetics Group, Department of Molecular Genetics, VIB, Antwerpen, Belgium
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Abstract
Rhesus glycoproteins are a recently discovered family of ammonium transporters and a new branch of the Mep/AMT proteins superfamily that was identified more than 15 years ago in lower organisms and plants. Despite many ex vivo studies showing evidences that Rh glycoproteins can accelerate transmembrane NH3 or NH4+ transfer, their role in normal and disease physiology remains unknown. This review focuses on some of the different studies carried out in animal models to gain insight into Rh glycoprotein function. Immunolocalization studies have added new evidence that this protein family is related to ammonium transport or metabolism in epithelial cells. However, the absence of distal tubular acidosis or hyperammonemia in Rhbg KO mice have raised new questions about the physiological significance of these proteins.
Collapse
Affiliation(s)
- R Chambrey
- Inserm U652, IFR58, institut des Cordeliers, faculté de médecine René-Descartes, université Paris-Descartes, 15, rue de l'Ecole-de-Médecine, 75006 Paris, France.
| | | | | | | |
Collapse
|
40
|
Abstract
Mice carrying inactivated Rh and Rhag genes were generated by insertional targeting. KO animals exhibited normal growth, development and fertility and both types were indistinguishable at a gross phenotypic level from their wild type littermates. Preliminary analysis revealed that red cells from Rh-/- mice lack Rh protein and have a moderate decrease of Rhag protein, whereas those from Rhag-/- mice have a total absence of Rhag and Rh proteins. Studies are in progress to delineate the antigenic, biochemical and functional abnormalities of red cells from these animals as well as the impact on hematological parameters and erythropoiesis.
Collapse
Affiliation(s)
- D Goossens
- Institut national de la transfusion sanguine Paris, Inserm U665, 6, rue Alexandre-Cabanel, 75739 Paris cedex 15, France.
| | | | | | | | | |
Collapse
|
41
|
Ripoche P, Goossens D, Devuyst O, Gane P, Colin Y, Verkman AS, Cartron JP. Role of RhAG and AQP1 in NH3 and CO2 gas transport in red cell ghosts: a stopped-flow analysis. Transfus Clin Biol 2006; 13:117-22. [PMID: 16574458 DOI: 10.1016/j.tracli.2006.03.004] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
To clarify the potential role Rh/RhAG and AQP1 proteins in erythrocyte gas transport, NH3 and CO2 transport was measured in erythrocyte ghost membrane vesicles from rare human variants (Rh(null), CO(null),) and knockout mice (homozygous AQP1-/-, Rh-/- and Rhag-/-) exhibiting well-characterized protein defects. Transport was measured from intracellular pH (pHi) changes in a stopped-flow fluorimeter. NH3 transport was measured in chloride-free conditions with ghosts exposed to 20 mM inwardly directed gradients of gluconate salts of ammonium, hydrazine and methylammonium at 15 degrees C. Alkalinization rates of control samples were 6.5+/-0.3, 4.03+/-0.17, 0.95+/-0.08 s(-1) for each solute, respectively, but were significantly reduced for Rh(null) and CO(null) samples that are deficient in RhAG and AQP1 proteins, respectively. Alkalinization rates of Rh(null) ghosts were about 60%, 83% and 94% lower than that in control ghosts, respectively, for each solute. In CO(null) ghosts, the lack of AQP1 resulted in about 30% reduction of the alkalinization rates as compared to controls, but the transport selectivity of RhAG for the three solutes was preserved. Similar observations were made with ghosts from KO mice Rhag-/- and AQP1-/-. These results confirm the major contribution of RhAG/Rhag in the NH3 conductance of erythrocytes and suggest that the reduction of transport rates in the absence of AQP1 would be better explained by a direct or indirect effect on RhAG/Rhag-mediated transport. When ghosts were preloaded with carbonic anhydrase and exposed to a 25 mM CO2/HCO3- gradient at 6 degrees C, an extremely rapid kinetics of acidification corresponding to CO2 influx was observed. The rate constants were not significantly different between controls and human variants (125+/-6 s(-1)), or between wild-type and KO mice, suggesting no major role of RhAG or AQP1 in CO2 transport, at least in our experimental conditions.
Collapse
Affiliation(s)
- P Ripoche
- Institut national de la transfusion sanguine, Paris F-75015, France
| | | | | | | | | | | | | |
Collapse
|
42
|
Chambrey R, Goossens D, Bourgeois S, Picard N, Bloch-Faure M, Leviel F, Geoffroy V, Cambillau M, Colin Y, Paillard M, Houillier P, Cartron JP, Eladari D. Genetic ablation of Rhbg in the mouse does not impair renal ammonium excretion. Am J Physiol Renal Physiol 2005; 289:F1281-90. [PMID: 16077082 DOI: 10.1152/ajprenal.00172.2005] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.0] [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: 11/22/2022] Open
Abstract
NH(4)(+) transport by the distal nephron and NH(4)(+) detoxification by the liver are critical for achieving regulation of acid-base balance and to avoid hyperammonemic hepatic encephalopathy, respectively. Therefore, it has been proposed that rhesus type B glycoprotein (Rhbg), a member of the Mep/Amt/Rh NH(3) channel superfamily, may be involved in some forms of distal tubular acidosis and congenital hyperammonemia. We have tested this hypothesis by inactivating the RHbg gene in the mouse by insertional mutagenesis. Histochemical studies analyses confirmed that RHbg knockout (KO) mice did not express Rhbg protein. Under basal conditions, the KO mice did not exhibit encephalopathy and survived well. They did not exhibit hallmarks of distal tubular acidosis because neither acid-base status, serum potassium concentration, nor bone mineral density was altered by RHbg disruption. They did not have hyperammonemia or disturbed hepatic NH(3) metabolism. Moreover, the KO mice adapted to a chronic acid-loading challenge by increasing urinary NH(4)(+) excretion as well as their wild-type controls. Finally, transepithelial NH(3) diffusive permeability, or NH(3) and NH(4)(+) entry across the basolateral membrane of cortical collecting duct cells, measured by in vitro microperfusion of collecting duct from KO and wild-type mice, was identical with no apparent effect of the absence of Rhbg protein. We conclude that Rhbg is not a critical determinant of NH(4)(+) excretion by the kidney and of NH(4)(+) detoxification by the liver in vivo.
Collapse
|
43
|
Claes L, Audenaert D, Deprez L, Van Paesschen W, Depondt C, Goossens D, Del-Favero J, Van Broeckhoven C, De Jonghe P. Novel locus on chromosome 12q22-q23.3 responsible for familial temporal lobe epilepsy associated with febrile seizures. J Med Genet 2005; 41:710-4. [PMID: 15342703 PMCID: PMC1735896 DOI: 10.1136/jmg.2004.019257] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
44
|
Audenaert D, Claes L, Claeys KG, Deprez L, Van Dyck T, Goossens D, Del-Favero J, Van Paesschen W, Van Broeckhoven C, De Jonghe P. A novel susceptibility locus at 2p24 for generalised epilepsy with febrile seizures plus. J Med Genet 2005; 42:947-52. [PMID: 15827091 PMCID: PMC1735961 DOI: 10.1136/jmg.2005.031393] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Generalised epilepsy with febrile seizures plus (GEFS+) is a clinically and genetically heterogeneous epilepsy syndrome. Using positional cloning strategies, mutations in SCN1B, SCN1A, and GABRG2 have been identified as genetic causes of GEFS+. In the present study, we describe a large four generation family with GEFS+ in which we performed a 10 cM density genome-wide scan. We obtained conclusive evidence for a novel GEFS+ locus on chromosome 2p24 with a maximum two point logarithm of the odds (LOD) score of 4.22 for marker D2S305 at zero recombination. Fine mapping and haplotype segregation analysis in this family delineated a candidate region of 3.24 cM, corresponding to a physical distance of 4.2 Mb. Linkage to 2p24 was confirmed (p = 0.007) in a collection of 50 nuclear and multiplex families with febrile seizures and epilepsy. Transmission disequilibrium testing and association studies provided further evidence (p < 0.05) that 2p24 is a susceptibility locus for febrile seizures and epilepsy. Furthermore, we could reduce the candidate region to a 2.14 cM interval, localised between D2S1360 and D2S2342, based upon an ancestral haplotype. Identification of the disease gene at this locus will contribute to a better understanding of the complex genetic aetiology of febrile seizures and epilepsy.
Collapse
Affiliation(s)
- D Audenaert
- Department of Molecular Genetics, Flanders Interuniversity Institute for Biotechnology, University of Antwerp, Antwerp, Belgium
| | | | | | | | | | | | | | | | | | | |
Collapse
|
45
|
Goossens D, Jonkers D, Russel M, Thijs A, van den Bogaard A, Stobberingh E, Stockbrügger R. Survival of the probiotic, L. plantarum 299v and its effects on the faecal bacterial flora, with and without gastric acid inhibition. Dig Liver Dis 2005; 37:44-50. [PMID: 15702859 DOI: 10.1016/j.dld.2004.07.018] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [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: 12/11/2022]
Abstract
INTRODUCTION Probiotic bacteria have to survive passage through the gastrointestinal tract. In this placebo-controlled double-blind study, the effect of Lactobacillus plantarum 299v on the faecal flora was studied with and without gastric acid inhibition. METHODS Thirty-two healthy volunteers were given pantoprazole (40 mg/day) or placebo for 3 weeks from week 2 until week 4. In addition, from week 3 until week 4, L. plantarum 299v in an oatmeal-fermented drink (10(9) CFU/ml) was given twice daily to both groups. From each healthy volunteer, faecal samples were collected at the end of week 1, 2, 4 and 8 (4 weeks after cessation of L. plantarum 299v and pantoprazole/placebo). Several aerobically and anaerobically growing bacteria were counted and short chain fatty acid concentrations were determined. RESULTS In both the pantoprazole and the placebo group, median lactobacilli counts increased significantly in week 4 compared to week 1 (from log 4.5 to 8.0 CFU/g faeces in pantoprazole and from log 4.2 to 7.7 CFU/g faeces in placebo group) and decreased significantly in week 8 (to log 4.5 CFU/g faeces in pantoprazole and log 4.3 CFU/g faeces in placebo group). These lactobacilli were identified as L. plantarum 299v. No significant differences were observed in all other bacterial counts and short chain fatty acid concentrations. CONCLUSIONS The comparable increase of faecal lactobacilli counts in both the pantoprazole and the placebo-treated group demonstrates that L. plantarum 299v survives passage through the gastrointestinal tract irrespective of gastric acidity. The increment of the intra-gastric pH in combination with L. plantarum 299v did not modulate bacterial composition and/or the production of short chain fatty acids.
Collapse
Affiliation(s)
- D Goossens
- Department of Gastroenterology and Hepatology, University Hospital Maastricht, 6202 AZ Maastricht, The Netherlands.
| | | | | | | | | | | | | |
Collapse
|
46
|
Abstract
INTRODUCTION Post brainstem lesion dysphagia is frequently associated with palatal myoclonus (PM) but the correlation between these two symptoms is still unclear. OBJECTIVE The aim of this study was to verify the relationship between PM and dysphagia, and if PM could itself induce dysphagia. PATIENTS AND METHODS Twelve patients suffering from post brainstem lesion PM and dysphagia; 10 male and two female, mean aged of 50.5 years, were assessed using clinical examination, radiological and endoscopic examination of deglutition. RESULTS In three cases, PM were associated with pharyngeal area decreasing, laryngeal aspiration, and dysphagia. DISCUSSION This study confirms the hypothesis of close relationship between PM and dysphagia. In these cases, specific dysphagia therapy should be recommended. CONCLUSION Post brainstem lesion dysphagia is sometimes associated with PM and in some cases, there is probably a relationship between PM and swallowing disorders of these patients.
Collapse
Affiliation(s)
- D Goossens
- Service de médecine physique et de réadaptation, hôpital Pellegrin, CHU, 33076 Bordeaux cedex, France
| | | | | | | |
Collapse
|
47
|
Abstract
Nowadays. there is a growing interest in probiotics as a safe way of changing the intestinal bacterial flora. Probiotics may have potential in several gastroenterological conditions, especially when the intestinal flora has been disturbed. Most scientific evidence is available for diarrhoea patients treated with Lactobacillus GG, Lactobacillus reuteri or Saccharomyces boulardii. Meta-analyses have shown an overall reduction in the risk of antibiotic-associated diarrhoea during treatment with probiotics, and benefits have also been demonstrated for patients with rota-virus-associated diarrhoea. Patients with inflammatory bowel disease, an inflammatory disorder characterized by a change in the intestinal flora, are another important target group for which probiotics may be beneficial. It has been claimed that in ulcerative colitis and Crohn disease patients, lactobacilli, S. boulardii and Escherichia coli reduce relapses. but most studies were not placebo-controlled. A reduction in relapses has also been demonstrated in pouchitis patients treated with a multispecies probiotic. Irritable bowel syndrome might be another clinical indication for probiotic therapy, but results of clinical trials performed in these patients are inconsistent. Additionally, probiotics may improve lactose absorption. Helicobacter pylori eradication and constipation. Finally, in animal models of colorectal cancer, treatment with probiotics reduces the prevalence of this disease, and in humans the amount of genotoxic substances in faeces has been reduced. In conclusion, the results of studies on the effects of probiotics in gastrointestinal conditions are encouraging. but well-designed placebo-controlled studies are warranted before recommendations for therapeutic or preventive use can be given. Many issues still have to be resolved, including optimal dose and duration of treatment, selection of and differences between the several available probiotic strains, and, importantly, their mechanisms of actions have to be elucidated.
Collapse
Affiliation(s)
- D Goossens
- Dept. of Gastroenterology, University Hospital Maastricht. The Netherlands.
| | | | | | | | | | | |
Collapse
|
48
|
Goossens D, Jonkers D, Russel M, Stobberingh E, Van Den Bogaard A, StockbrUgger R. The effect of Lactobacillus plantarum 299v on the bacterial composition and metabolic activity in faeces of healthy volunteers: a placebo-controlled study on the onset and duration of effects. Aliment Pharmacol Ther 2003; 18:495-505. [PMID: 12950422 DOI: 10.1046/j.1365-2036.2003.01708.x] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.6] [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: 01/01/2023]
Abstract
AIM To study the onset and duration of a possible effect of a fermented oatmeal drink containing Lactobacillus plantarum 299v on the composition of the faecal flora of healthy volunteers in a placebo-controlled, double-blind study. METHODS Twenty-two participants consumed a fermented oatmeal drink with or without L. plantarum 299v for 4 weeks. Faecal samples were collected weekly: two samples before, four during and four after the consumption of the drink. Several bacterial species were counted and enzyme activities, short-chain fatty acid concentrations, endotoxin concentration and pH were determined. L. plantarum 299v was identified using randomly amplified polymorphic DNA. RESULTS In contrast with the placebo group, median lactobacilli counts increased significantly from 4.2 (3.4-6.3) to 8.2 (7.3-8.5) log colony-forming units/gram faeces (P = 0.005) after 1 week of consumption of L. plantarum 299v, thereafter remaining stable during the treatment period. One week after cessation, a significant decrease in lactobacilli [to 4.4 (2.2-6.5) log colony-forming units/gram faeces] was observed (P = 0.003). These lactobacilli were identified as L. plantarum 299v. All other bacterial counts, enzyme activities, short-chain fatty acid concentrations, endotoxin concentration and pH remained unchanged. CONCLUSIONS L. plantarum 299v significantly increased the number of lactobacilli in the faecal flora within 1 week, and this effect disappeared within 1 week after cessation of intake. No other changes in bacterial counts and metabolic products were observed.
Collapse
Affiliation(s)
- D Goossens
- Departments of Gastroenterology and Medical Microbiology, University Hospital Maastricht, Maastricht, The Netherlands.
| | | | | | | | | | | |
Collapse
|
49
|
Quentin F, Eladari D, Cheval L, Lopez C, Goossens D, Colin Y, Cartron JP, Paillard M, Chambrey R. RhBG and RhCG, the putative ammonia transporters, are expressed in the same cells in the distal nephron. J Am Soc Nephrol 2003; 14:545-54. [PMID: 12595489 DOI: 10.1097/01.asn.0000050413.43662.55] [Citation(s) in RCA: 118] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Two nonerythroid homologs of the blood group Rh proteins, RhCG and RhBG, which share homologies with specific ammonia transporters in primitive organisms and plants, could represent members of a new family of proteins involved in ammonia transport in the mammalian kidney. Consistent with this hypothesis, the expression of RhCG was recently reported at the apical pole of all connecting tubule (CNT) cells as well as in intercalated cells of collecting duct (CD). To assess the localization along the nephron of RhBG, polyclonal antibodies against the Rh type B glycoprotein were generated. In immunoblot experiments, a specific polypeptide of Mr approximately 50 kD was detected in rat kidney cortex and in outer and inner medulla membrane fractions. Immunocytochemical studies revealed RhBG expression in distal nephron segments within the cortical labyrinth, medullary rays, and outer and inner medulla. RhBG expression was restricted to the basolateral membrane of epithelial cells. The same localization was observed in rat and mouse kidney. RT-PCR analysis on microdissected rat nephron segments confirmed that RhBG mRNAs were chiefly expressed in CNT and cortical and outer medullary CD. Double immunostaining with RhCG demonstrated that RhBG and RhCG were coexpressed in the same cells, but with a basolateral and apical localization, respectively. In conclusion, RhBG and RhCG are present in a major site of ammonia secretion in the kidney, i.e., the CNT and CD, in agreement with their putative role in ammonium transport.
Collapse
Affiliation(s)
- Fabienne Quentin
- Institut National de la Santé et de la Recherche Médicale Unité 356, Institut Fédératif de Recherche 58, Université Pierre et Marie Curie, Paris, France
| | | | | | | | | | | | | | | | | |
Collapse
|
50
|
Goossens D, Van Gestel S, Claes S, De Rijk P, Souery D, Massat I, Van den Bossche D, Backhovens H, Mendlewicz J, Van Broeckhoven C, Del-Favero J. A novel CpG-associated brain-expressed candidate gene for chromosome 18q-linked bipolar disorder. Mol Psychiatry 2003; 8:83-9. [PMID: 12556911 DOI: 10.1038/sj.mp.4001190] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.0] [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: 11/09/2022]
Abstract
We previously identified 18q21-q22 as a candidate region for bipolar (BP) disorder and constructed a yeast artificial chromosome (YAC) contig map. Here we identified three potential CpG islands using CCG/CGG YAC fragmentation. Analysis of available genomic sequences using bioinformatic tools identified an exon of 3639 bp downstream of a CpG island of 1.2 kb containing a putative transcription initiation site. The exon contained an open reading frame coding for 1212 amino acids with significant homology to the SART-2 protein; weaker homology was found with a series of sulphotransferases. Alignment of cDNA sequences of corresponding ESTs and RT-PCR sequencing predicted a transcript of 9.5 kb which was confirmed by Northern blot analysis. The transcript was expressed in different brain areas as well as in multiple other peripheral tissues. We performed an extensive mutation analysis in 113 BP patients. A total of nine single nucleotide polymorphisms (SNPs) were identified. Five SNPs predicted an amino acid change, of which two were present in BP patients but not in 163 control individuals.
Collapse
Affiliation(s)
- D Goossens
- Department of Molecular Genetics, Flanders Interuniversity Institute for Biotechnology (VIB), University of Antwerp (UIA), Antwerpen, Belgium
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|