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Dupont L, Aberle C, Botsikas D, Ith M, Lima TVM, Menz R, Monnin P, Poletti PA, Presilla S, Schegerer A, Stoica LC, Trueb P, Sans Merce M. Proposed DRLs for Mammography in Switzerland. J Radiol Prot 2024. [PMID: 38530290 DOI: 10.1088/1361-6498/ad37c8] [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] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
OBJECTIVES
The aim of this study is to propose Diagnostic Reference Levels (DRLs) values for mammography in Switzerland.
Methods:
For the data collection, a survey was conducted among a sufficient number of centres, including 5 University hospitals, several cantonal hospitals, and large private clinics, covering all linguistic regions of Switzerland to be representative of the clinical practice. The data gathered contained the mean glandular dose (MGD), the compressed breast thickness (CBT), the mammography model and the examination parameters for each acquisition. The data collected was sorted into the following categories: 2D or digital breast tomosynthesis (DBT) examination, craniocaudal (CC) or mediolateral oblique (MLO) projection, and 8 categories of compressed breast thickness (CBT) ranging from 20mm to 100mm in 10mm intervals.
Results:
24762 acquisitions acquired in 31 centres on 36 mammography units from 6 different manufacturers were collected. The analysis showed that the data reflects the practice in Switzerland.The results revealed that the MGD is larger for DBT than for 2D acquisitions for the same CBT. From 20-30mm to 90-100mm of CBT, the 75th percentile of the MGD values obtained increased from 0.81mGy to 2.55mGy for 2D CC acquisitions, from 0.83mGy to 2.96mGy for 2D MLO acquisitions, from 1.22mGy to 3.66mGy for DBT CC acquisitions and from 1.33mGy to 4.04mGy for DBT MLO acquisitions.
Conclusion:
The results of the survey allow us to propose Swiss DRLs for mammography according to the examination type (2D/DBT), projection (CC/MLO) and CBT. The proposed values are very satisfactory in comparison with other studies.
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Affiliation(s)
- Laura Dupont
- Radiology, Geneva University Hospitals, Geneve, SWITZERLAND
| | - Christoph Aberle
- Clinic of Radiology & Nuclear Medicine, University Hospital Basel, Basel, SWITZERLAND
| | | | - Michael Ith
- Inselspital University Hospital Bern, Bern, Bern, SWITZERLAND
| | | | - Roman Menz
- Basel Universtiy Hospital, Basel, SWITZERLAND
| | - Pascal Monnin
- Lausanne University Hospital Institute of Radiation Physics, Lausanne, Vaud, SWITZERLAND
| | | | - Stefano Presilla
- Medical Physics Unit, Ente Ospedaliero Cantonale, Ospedale San Giovanni, Bellinzona, TI, SWITZERLAND
| | | | | | - Philipp Trueb
- Radiation Protection Division, Federal Office of Public Health, Bern, Bern, SWITZERLAND
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Uyttebroek S, Claeyssens C, Jorissen M, Dupont L, Van Gerven L. Dual and triple modulator therapy for chronic rhinosinusitis in cystic fibrosis patients. Rhinology 2024; 0:3171. [PMID: 38530204 DOI: 10.4193/rhin23.487] [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: 03/27/2024]
Abstract
BACKGROUND The introduction of CFTR modulators has changed the landscape in the treatment of cystic fibrosis (CF) and early case series have shown improvements in sinonasal outcomes in this patient population. METHODOLOGY A real-word data study was performed to evaluate the impact of dual therapy with tezacaftor/ivacaftor (TEZ/IVA) and triple therapy with elexacaftor/tezacaftor/ivacaftor (ELX/TEZ/IVA) on CF-related chronic rhinosinusitis (CRS), by comparing subjective and objective outcome measures at baseline, 12 months after treatment with TEZ/IVA and six months after treatment with ELX/TEZ/IVA. RESULTS In total, 43 CF patients, with a mean age of 32 years, were included. After triple therapy, significant improvements in overall visual analogue scale, SNOT-22, Lund Kennedy, nasal polyps, and Lund-Mackay scores were observed, whereas no beneficial effect could be seen in patients treated with dual therapy. Bacterial upper airway colonization did not differ pre- and postmodulator therapy in the present study. The number of responders to dual and triple therapy is 23.8% and 63.2% of the patients, respectively. CONCLUSIONS Triple therapy with ELX/TEZ/IVA is superior to dual therapy with TEZ/IVA in the treatment of CF-CRS, as significantly reduced sinonasal complaints, nasal endoscopy and CT scores were observed after triple therapy, whereas this was not the case for dual therapy.
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Affiliation(s)
- S Uyttebroek
- UZ Leuven, Department of Otorhinolaryngology, Head and Neck surgery, Leuven, Belgium
- KU Leuven, Department of Neurosciences, Experimental Otorhinolaryngology, Rhinology Research, Leuven, Belgium
| | - C Claeyssens
- UZ Leuven, Department of Otorhinolaryngology, Head and Neck surgery, Leuven, Belgium
- KU Leuven, Department of Neurosciences, Experimental Otorhinolaryngology, Rhinology Research, Leuven, Belgium
| | - M Jorissen
- UZ Leuven, Department of Otorhinolaryngology, Head and Neck surgery, Leuven, Belgium
- KU Leuven, Department of Neurosciences, Experimental Otorhinolaryngology, Rhinology Research, Leuven, Belgium
| | - L Dupont
- UZ Leuven, Department of Pneumology, Leuven, Belgium
- KU Leuven, Department of Chronic Diseases and Metabolism, Respiratory Diseases and Thoracic Surgery, Leuven, Belgium
| | - L Van Gerven
- UZ Leuven, Department of Otorhinolaryngology, Head and Neck surgery, Leuven, Belgium
- KU Leuven, Department of Neurosciences, Experimental Otorhinolaryngology, Rhinology Research, Leuven, Belgium
- KU Leuven, Department of Microbiology, Immunology and Transplantation, Allergy and Clinical Immunology Research Group, Leuven, Belgium
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Faj D, Bassinet C, Brkić H, De Monte F, Dreuil S, Dupont L, Ferrari P, Gallagher A, Gallo L, Huet C, Knežević Ž, Kralik I, Krstić D, Maccia C, Majer M, Malchair F, O'Connor U, Pankowski P, Sans Merce M, Sage J, Simantirakis G. Management of pregnant or potentially pregnant patients undergoing diagnostic and interventional radiology procedures: Investigation of clinical routine practice. Phys Med 2023; 115:103159. [PMID: 37852021 DOI: 10.1016/j.ejmp.2023.103159] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 08/26/2023] [Accepted: 10/01/2023] [Indexed: 10/20/2023] Open
Abstract
It is well known that foetuses are highly sensitive to ionising radiation and special attention to justification and optimisation of radiological procedures involving a pregnant patient is required. A task to review, validate and compare different approaches to managing the pregnant patient and to estimating the associated foetal doses arising from a diagnostic or interventional radiology (DIR) procedure was designed in the framework of EURADOS working group 12. As a first step, a survey of radiation protection practice including dosimetry considerations among EURADOS members was performed using online questionnaire. Then, to evaluate the possible differences in the estimated foetal doses, a comparison of assessed dose values was made for three cases of pregnant patients that underwent different CT procedures. More than 120 professionals from 108 institutions and 17 countries that are involved in managing pregnant patients undergoing DIR procedures answered the questionnaire. Most of the respondents use national or hospital guidelines on the management of pregnant patients undergoing DIR procedures. However, the guidelines differ considerably among respondents. Comparison of foetal dose assessments performed by dosimetry experts showed the variety of methods used as well as large variability of estimated foetal doses in all three cases. Although European and International commission on radiation protection guidelines already exist, they are more than 20 years old and, in some aspects, they are obsolete. This paper shows that there is a need to revise and update these guidelines.
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Affiliation(s)
- Dario Faj
- Faculty of Medicine, J. J. Strossmayer University of Osijek, J. Huttlera 4, Osijek, Croatia; Faculty of Dental Medicine and Health, J. J. Strossmayer University of Osijek, Crkvena 21, Osijek, Croatia
| | - Céline Bassinet
- Institute for Radiation Protection and Nuclear Safety, 31 avenue de la division Leclerc, Fontenay-aux-Roses, France
| | - Hrvoje Brkić
- Faculty of Medicine, J. J. Strossmayer University of Osijek, J. Huttlera 4, Osijek, Croatia; Faculty of Dental Medicine and Health, J. J. Strossmayer University of Osijek, Crkvena 21, Osijek, Croatia.
| | | | - Serge Dreuil
- Institute for Radiation Protection and Nuclear Safety, 31 avenue de la division Leclerc, Fontenay-aux-Roses, France
| | - Laura Dupont
- University Hospital of Geneva, Geneva, Switzerland
| | | | | | - Lara Gallo
- Veneto Institute of Oncology IOV - IRCCS, Padua, Italy
| | - Christelle Huet
- Institute for Radiation Protection and Nuclear Safety, 31 avenue de la division Leclerc, Fontenay-aux-Roses, France
| | | | - Ivana Kralik
- Dubrava University Hospital, Avenija Gojka Suska 6, Zagreb, Croatia
| | - Dragana Krstić
- University of Kragujevac, Faculty of Science, R. Domanovica 12, 34000 Kragujevac, Serbia
| | | | - Marija Majer
- Ruđer Boškovć Institute, Bijenička 54, Zagreb, Croatia
| | | | - Una O'Connor
- Medical Physics & Bioengineering Dept, St. James's Hospital, Dublin, Ireland
| | - Piotr Pankowski
- Faculty of Physics and Applied Informatics, University of Lodz, Pomorska St. 149/153, 90-236 Lodz, Poland
| | | | - Julie Sage
- Institute for Radiation Protection and Nuclear Safety, 31 avenue de la division Leclerc, Fontenay-aux-Roses, France
| | - George Simantirakis
- Greek Atomic Energy Commission, P.O. Box 60092, 153 10, Agia Paraskevi, Athens, Greece
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Cremer J, Brohée L, Dupont L, Lefevre C, Peiffer R, Saarinen AM, Peulen O, Bindels L, Liu J, Colige A, Deroanne CF. Acidosis-induced regulation of adipocyte G0S2 promotes crosstalk between adipocytes and breast cancer cells as well as tumor progression. Cancer Lett 2023:216306. [PMID: 37442366 DOI: 10.1016/j.canlet.2023.216306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 07/07/2023] [Accepted: 07/07/2023] [Indexed: 07/15/2023]
Abstract
Bidirectional interactions between cancer cells and their microenvironment govern tumor progression. Among the stromal cells in this microenvironment, adipocytes have been reported to upregulate cancer cell migration and invasion by producing fatty acids. Conversely, cancer cells alter adipocyte phenotype notably via increased lipolysis. We aimed to identify the mechanisms through which cancer cells trigger adipocyte lipolysis and evaluate the functional consequences on cancer progression. Here, we show that cancer cell-induced acidification of the extracellular medium strongly promotes preadipocyte lipolysis through a mechanism that does not involve lipophagy but requires adipose triglyceride lipase (ATGL) activity. This increased lipolysis is triggered mainly by attenuation of the G0/G1 switch gene 2 (G0S2)-induced inhibition of ATGL. G0S2-mediated regulation in preadipocytes affects their communication with breast cancer cells, modifying the phenotype of the cancer cells and increasing their resistance to chemotherapeutic agents in vitro. Furthermore, we demonstrate that the adipocyte-specific overexpression of G0S2 impairs mammary tumor growth and lung metastasis formation in vivo. Our results highlight the importance of acidosis in cancer cell-adipocyte crosstalk and identify G0S2 as the main regulator of cancer-induced lipolysis, regulating tumor establishment and spreading.
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Affiliation(s)
- Julie Cremer
- Laboratory of Connective Tissues Biology, GIGA-Cancer, University of Liège, Avenue Hippocrate 13, 4000, Liège, Belgium
| | - Laura Brohée
- Laboratory of Connective Tissues Biology, GIGA-Cancer, University of Liège, Avenue Hippocrate 13, 4000, Liège, Belgium
| | - Laura Dupont
- Laboratory of Connective Tissues Biology, GIGA-Cancer, University of Liège, Avenue Hippocrate 13, 4000, Liège, Belgium
| | - Camille Lefevre
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, UCLouvain, Université Catholique de Louvain, Avenue Mounier 73, B1.73.11, 1200, Brussels, Belgium
| | - Raphaël Peiffer
- Metastasis Research Laboratory, GIGA-Cancer, University of Liège, Avenue Hippocrate 13, 4000, Liège, Belgium
| | - Alicia M Saarinen
- Department of Biochemistry and Molecular Biology, Mayo Clinic in Arizona Scottsdale, AZ, USA
| | - Olivier Peulen
- Metastasis Research Laboratory, GIGA-Cancer, University of Liège, Avenue Hippocrate 13, 4000, Liège, Belgium
| | - Laure Bindels
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, UCLouvain, Université Catholique de Louvain, Avenue Mounier 73, B1.73.11, 1200, Brussels, Belgium
| | - Jun Liu
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, USA
| | - Alain Colige
- Laboratory of Connective Tissues Biology, GIGA-Cancer, University of Liège, Avenue Hippocrate 13, 4000, Liège, Belgium
| | - Christophe F Deroanne
- Laboratory of Connective Tissues Biology, GIGA-Cancer, University of Liège, Avenue Hippocrate 13, 4000, Liège, Belgium.
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Kerckhof P, Ambrosio G, Beeckmans H, Kaes J, Geudens V, Slambrouck J, Bos S, Vermant M, Aelbrecht C, Lynn W, Astrid V, Aversa L, Mohamady Y, Jin X, Charlotte D, Goos T, Iwein G, Vanstapel A, Orlitova M, Boone M, Janssens W, Josipovic I, Varghese V, Dupont L, Godinas L, Verleden G, Van Raemdonck D, Ceulemans L, Neyrinck A, McDonough J, Gayan-Ramirez G, Vanaudenaerde B, Vos R. Morphometric Airway Changes in Explanted Human Lungs with Chronic Lung Allograft Dysfunction. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.124] [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: 04/05/2023] Open
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6
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Beeckmans H, Kerckhof P, McDonough J, De Sadeleer L, Kaes J, Sacreas A, Aelbrecht C, Vanstapel A, Maes K, Schoemans H, Wauters E, Neyrinck A, Verleden G, Dupont L, Godinas L, Van Raemdonck D, Vanaudenaerde B, Vos R. Differences in the Transcriptional Landscape of Human End-Stage CLAD Phenotypes. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.123] [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: 04/05/2023] Open
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Dupont L, Bouckaert F, Detraux J. [The impact of high indoor temperatures on cognitive performance within the work setting: a systematic review]. Tijdschr Psychiatr 2023; 65:316-322. [PMID: 37434569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 07/13/2023]
Abstract
BACKGROUND Workplace guidelines exclusively focus on the impact of high indoor temperatures on physical work. There are no concrete recommendations in this regard concerning mental work. AIM To investigate to what extent high ambient temperatures can have an impact on cognitive performance within a work setting, which cognitive skills or tasks are impacted, and to what extent the results found can be transposed to the work setting of the psychiatrist. METHOD A literature search was conducted using the PubMed, Embase, and Web of Science databases. RESULTS A total of 17 studies were included. Although results were inconsistent, reaction time and processing speed appeared to be the most sensitive cognitive skills to elevated ambient temperatures. Higher cognitive functions such as logical and abstract reasoning were more resistant. The temperature range for optimal cognitive functioning generally appeared to be between 22°C and 24°C. CONCLUSION Temperatures above 24°C can have a negative impact on cognitive performance within a work setting. Given that reaction speed and processing speed are particularly affected, this could possibly have an impact in the work setting of the psychiatrist when making crucial decisions. However, due to the limited ecological validity of the included studies, unequivocal conclusions remain difficult.
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8
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Faj MD, Bassinet C, Brkić H, De Monte F, Dreuil S, Ferrari P, Gallagher MA, Gallo L, Huet C, Knežević Ž, Kralik I, Krstić D, Maccia C, Majer M, Malchair F, Sage J, Merce MS, Simantirakis G, O’Connor U, Dupont L. FOETAL DOSIMETRY IN PREGNANT PATIENTS UNDERGOING DIAGNOSTIC AND INTERVENTIONAL RADIOLOGY PROCEDURES: INVESTIGATION OF CLINICAL ROUTINE PRACTICE. Phys Med 2022. [DOI: 10.1016/s1120-1797(22)02197-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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9
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Ramalho A, Cuyx S, Boon M, Proesmans M, Dupont L, Van Hoorenbeeck K, De Wachter E, Van Biervliet S, De Boeck K, Vermeulen F. 692 Importance of cystic fibrosis transmembrane conductance regulator messenger ribonucleic acid testing to uncover other variants in cystic fibrosis genotype that affect cystic fibrosis transmembrane conductance regulator expression. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)01382-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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10
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De Crem N, Ruelens C, Duplacie N, Brants J, Makki N, André E, Van Bleyenbergh P, Dupont L, Lorent N. P108 Impact of improved nontuberculous mycobacterial culture surveillance strategy in an adult cystic fibrosis cohort. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)00441-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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Havermans T, Seyen N, Luyckx K, Vos R, Dupont L. ePS1.02 Long-term psychological impact of COVID-19 on adult patients with cystic fibrosis, including transplanted patients. J Cyst Fibros 2022. [PMCID: PMC9184772 DOI: 10.1016/s1569-1993(22)00280-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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12
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Ensinck M, De Keersmaecker L, Ramalho A, Cuyx S, Van Biervliet S, Dupont L, Christ F, Debyser Z, Vermeulen F, Carlon M. WS06.03 Novel CFTR modulator combinations maximise functional rescue of G85E and N1303K in rectal organoids. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)00185-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Havermans T, Paeps M, Braun S, Luyckx K, DeWachter E, Dupont L. WS03.03 Qualitative analyses of the experiences of people with end-stage cystic fibrosis lung disease receiving ELX/TEZ/IVA. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)00167-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Cuyx S, Ramalho A, Proesmans M, Boon M, Ensinck M, Carlon M, Dupont L, De Boeck K, Vermeulen F. P025 Assessment of CFTR modulator combinations in rectal organoids from F508del homozygous patients with cystic fibrosis. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)00358-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Uyttebroek S, Dupont L, Van Gerven L. P106 Upper airway disease in adults with cystic fibrosis: a cross-sectional study. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)00439-8] [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]
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16
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Godinas L, Bos S, Sacreas A, Beeckmans H, Daniëls L, Vanstapel A, Dierickx D, Dupont L, Neyrinck A, Ceulemans L, Van Raemdonck D, Vanaudenaerde B, Verleden G, Vos R. Characteristics of AMR Predicts Prognosis and Phenotype of CLAD. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.706] [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: 10/18/2022] Open
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17
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Vanluyten C, Vandervelde C, Vos R, Fieuws S, Van Slambrouck J, De Leyn P, Coosemans W, Nafteux P, Decaluwé H, Van Veer H, Depypere L, Denaux K, Desschans B, Ingels C, Verleden S, Godinas L, Dupont L, Verleden G, Neyrinck A, Van Raemdonck D, Ceulemans L. Recipient Outcome After Lung Transplantation from Older Donors (≥70 Years) Equals Younger Donors (< 70 Years): A Propensity-Matched Analysis. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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18
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Dupont L, Joannes L, Morfoisse F, Blacher S, Monseur C, Deroanne CF, Noël A, Colige AC. ADAMTS2 and ADAMTS14 substitute ADAMTS3 in adults for proVEGFC activation and lymphatic homeostasis. JCI Insight 2022; 7:151509. [PMID: 35316211 PMCID: PMC9089798 DOI: 10.1172/jci.insight.151509] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 05/19/2021] [Accepted: 03/16/2022] [Indexed: 11/17/2022] Open
Abstract
The capacity of ADAMTS3 to cleave pro-VEGFC into active VEGFC able to bind its receptors and to stimulate lymphangiogenesis has been clearly established during embryonic life. However, this function of ADAMTS3 is unlikely to persist in adulthood because of its restricted expression pattern after birth. Because ADAMTS2 and ADAMTS14 are closely related to ADAMTS3 and are mainly expressed in connective tissues where the lymphatic network extends, we hypothesized that they could substitute for ADAMTS3 during adulthood in mammals allowing proteolytic activation of pro-VEGFC. Here, we demonstrated that ADAMTS2 and ADAMTS14 are able to process pro-VEGFC into active VEGFC as efficiently as ADAMTS3. In vivo, adult mice lacking Adamts2 developed skin lymphedema due to a reduction of the density and diameter of lymphatic vessels, leading to a decrease of lymphatic functionality, while genetic ablation of Adamts14 had no impact. In a model of thermal cauterization of cornea, lymphangiogenesis was significantly reduced in Adamts2- and Adamts14-KO mice and further repressed in Adamts2/Adamts14 double-KO mice. In summary, we have demonstrated that ADAMTS2 and ADAMTS14 are as efficient as ADAMTS3 in activation of pro-VEGFC and are involved in the homeostasis of the lymphatic vasculature in adulthood, both in physiological and pathological processes.
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Affiliation(s)
- Laura Dupont
- Laboratory of Tumor and Developmental Biology, University of Liege, Liège, Belgium
| | - Loïc Joannes
- Laboratory of Connective Tissues Biology, University of Liege, Liège, Belgium
| | - Florent Morfoisse
- Laboratory of Tumor and Developmental Biology, University of Liege, Liège, Belgium
| | - Silvia Blacher
- Laboratory of Tumor and Development Biology, University of Liege, Liège, Belgium
| | - Christine Monseur
- Laboratory of Connective Tissues Biology, University of Liege, Liège, Belgium
| | | | - Agnès Noël
- Laboratory of Tumor and Development Biology, University of Liege, Liège, Belgium
| | - Alain Cma Colige
- Laboratory of Connective Tissues Biology, University of Liege, Liège, Belgium
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El Rammouz H, Benmeddour F, Assaad J, Moulin E, Smagin N, Dupont L, Chehami L, Zaatar Y, Herro Z. A micro-transducer matrix design for the detection of flexural guided waves. Ultrasonics 2021; 115:106430. [PMID: 33932641 DOI: 10.1016/j.ultras.2021.106430] [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] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 02/18/2021] [Accepted: 03/25/2021] [Indexed: 06/12/2023]
Abstract
In this paper, a new approach is proposed for the detection of ultrasonic guided waves using a LiNbO3 single crystal-based micro-transducer matrix. This matrix was designed, manufactured, and then used to detect Lamb and Pochhammer-Chree guided waves in plate- and cylinder-like structures. This study highlights the identification of the first flexural mode F(1,1) in cylinders at low frequencies. A network analyser and a laser Doppler vibrometer (LDV) were used to characterise and study the behaviour of the micro-transducer matrix. An experimental device was designed and used to acquire electrical measurements of the micro-transducer vibrations. Then, an original experimental device was developed to generate a selected flexural guided mode in a solid aluminium cylinder. The emitter comprised two semicircular piezoelectric transducers excited with only one phased signal thanks to the inverse position of polarisation. Finally, the results prove that the flexural mode F(1,1) is selected and generated by the emitter, then detected and identified by the micro-transducer matrix.
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Affiliation(s)
- H El Rammouz
- Univ. Polytechnique Hauts-de-France, CNRS, Univ. Lille, ISEN, Centrale Lille, UMR 8520 - IEMN - Institut d'electronique de Microelectronique et de Nanotechnologie, DOAE - Departement d'Opto-Acousto-electronique, F-59313 Valenciennes, France; Lebanese University, Faculty of Sciences II, Laboratory of Applied Physics, Fanar, Lebanon.
| | - F Benmeddour
- Univ. Polytechnique Hauts-de-France, CNRS, Univ. Lille, ISEN, Centrale Lille, UMR 8520 - IEMN - Institut d'electronique de Microelectronique et de Nanotechnologie, DOAE - Departement d'Opto-Acousto-electronique, F-59313 Valenciennes, France
| | - J Assaad
- Univ. Polytechnique Hauts-de-France, CNRS, Univ. Lille, ISEN, Centrale Lille, UMR 8520 - IEMN - Institut d'electronique de Microelectronique et de Nanotechnologie, DOAE - Departement d'Opto-Acousto-electronique, F-59313 Valenciennes, France
| | - E Moulin
- Univ. Polytechnique Hauts-de-France, CNRS, Univ. Lille, ISEN, Centrale Lille, UMR 8520 - IEMN - Institut d'electronique de Microelectronique et de Nanotechnologie, DOAE - Departement d'Opto-Acousto-electronique, F-59313 Valenciennes, France
| | - N Smagin
- Univ. Polytechnique Hauts-de-France, CNRS, Univ. Lille, ISEN, Centrale Lille, UMR 8520 - IEMN - Institut d'electronique de Microelectronique et de Nanotechnologie, DOAE - Departement d'Opto-Acousto-electronique, F-59313 Valenciennes, France
| | - L Dupont
- Univ. Polytechnique Hauts-de-France, CNRS, Univ. Lille, ISEN, Centrale Lille, UMR 8520 - IEMN - Institut d'electronique de Microelectronique et de Nanotechnologie, DOAE - Departement d'Opto-Acousto-electronique, F-59313 Valenciennes, France
| | - L Chehami
- Univ. Polytechnique Hauts-de-France, CNRS, Univ. Lille, ISEN, Centrale Lille, UMR 8520 - IEMN - Institut d'electronique de Microelectronique et de Nanotechnologie, DOAE - Departement d'Opto-Acousto-electronique, F-59313 Valenciennes, France
| | - Y Zaatar
- Lebanese University, Faculty of Sciences II, Laboratory of Applied Physics, Fanar, Lebanon
| | - Z Herro
- Lebanese University, Faculty of Sciences II, Laboratory of Applied Physics, Fanar, Lebanon
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20
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Vanstapel A, Weynand B, De Zutter A, Dubbeldam A, De Sadeleer L, Kaes J, Verbeken E, Ceulemans L, Geudens V, Goos T, Gyselinck I, Van Raemdonck D, Neyrinck A, Dupont L, Boon M, Boone M, Vanaudenaerde B, Vos R, Verleden G, Verleden S. Phenotypical Characterization of Airway Morphology in Post-Infectious vs Post-Lung Transplantation Bronchiolitis Obliterans. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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21
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Leduc C, Dupont L, Joannes L, Monseur C, Baiwir D, Mazzucchelli G, Deroanne C, Colige A, Bekhouche M. In vivo N-Terminomics Highlights Novel Functions of ADAMTS2 and ADAMTS14 in Skin Collagen Matrix Building. Front Mol Biosci 2021; 8:643178. [PMID: 33816558 PMCID: PMC8017238 DOI: 10.3389/fmolb.2021.643178] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 02/08/2021] [Indexed: 12/12/2022] Open
Abstract
A disintegrin and metalloproteinase with thrombospondin type I motif (ADAMTS)2 and ADAMTS14 were originally known for their ability to cleave the aminopropeptides of fibrillar collagens. Previous work using N-terminomic approach (N-TAILS) in vitro led to the identification of new substrates, including some molecules involved in TGF-β signaling. Here, N-TAILS was used to investigate the substrates of these two enzymes in vivo, by comparing the N-terminomes of the skin of wild type mice, mice deficient in ADAMTS2, in ADAMTS14 and in both ADAMTS2 and ADAMTS14. This study identified 68 potential extracellular and cell surface proteins, with the majority of them being cleaved by both enzymes. These analyses comfort their role in collagen matrix organization and suggest their implication in inflammatory processes. Regarding fibrillar collagen, this study demonstrates that both ADAMTS2 and ADAMTS14 are involved in the processing of the aminopropeptide of alpha1 and alpha2 type V collagen. It also revealed the existence of several cleavage sites in the Col1 domain and in the C-propeptide of type I collagens. In addition to collagens and other extracellular proteins, two major components of the cell cytoskeleton, actin and vimentin, were also identified as potential substrates. The latter data were confirmed in vitro using purified enzymes and could potentially indicate other functions for ADAMTS2 and 14. This original investigation of mouse skin degradomes by N-terminomic highlights the essential role of ADAMTS2 and ADAMTS14 in collagen matrix synthesis and turnover, and gives clues to better understand their functions in skin pathophysiology. Data are available via ProteomeXchange with identifier PXD022179.
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Affiliation(s)
- Cédric Leduc
- Laboratory of Connective Tissues Biology, GIGA-Cancer, University of Liège, Liège, Belgium
| | - Laura Dupont
- Laboratory of Connective Tissues Biology, GIGA-Cancer, University of Liège, Liège, Belgium
| | - Loïc Joannes
- Laboratory of Connective Tissues Biology, GIGA-Cancer, University of Liège, Liège, Belgium
| | - Christine Monseur
- Laboratory of Connective Tissues Biology, GIGA-Cancer, University of Liège, Liège, Belgium
| | - Dominique Baiwir
- GIGA Proteomic Facility, GIGA-Interdisciplinary Cluster for Applied Genoproteomics, University of Liège, Liège, Belgium
| | - Gabriel Mazzucchelli
- GIGA Proteomic Facility, GIGA-Interdisciplinary Cluster for Applied Genoproteomics, University of Liège, Liège, Belgium
| | - Christophe Deroanne
- Laboratory of Connective Tissues Biology, GIGA-Cancer, University of Liège, Liège, Belgium
| | - Alain Colige
- Laboratory of Connective Tissues Biology, GIGA-Cancer, University of Liège, Liège, Belgium
| | - Mourad Bekhouche
- Laboratory of Connective Tissues Biology, GIGA-Cancer, University of Liège, Liège, Belgium.,Tissue Biology and Therapeutic Engineering, Centre National de la Recherche Scientifique/University of Lyon Unité Mixte de Recherche 5305, Lyon, France.,Faculté d'Odontologie de Lyon, Université de Lyon, Université Lyon 1, Lyon, France
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22
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Havermans T, Brants J, Hoebrechts F, Duplacie N, Dupont L. P256 Waiting for double lung transplantation: psychological impact (review). J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01281-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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23
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Van Meerbeeck S, Proesmans M, Brants J, Havermans T, Claes I, Dupont L. P173 Investigation of cyproheptadine as an appetite stimulator in 6 children with cystic fibrosis with a suboptimal nutritional status. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01199-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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24
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Serrano A, Wyn H, Dupont L, Villa-Gomez DK, Yermán L. Self-sustaining treatment as a novel alternative for the stabilization of anaerobic digestate. J Environ Manage 2020; 264:110544. [PMID: 32250925 DOI: 10.1016/j.jenvman.2020.110544] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 03/28/2020] [Accepted: 03/29/2020] [Indexed: 06/11/2023]
Abstract
Self-sustaining smouldering combustion (SSS) is a technology based on the flameless oxidation of an organic substrate and limited by the rate at which oxygen is diffused to the surface of the substrate. This work aims to evaluate the SSS combustion as a treatment process for the stabilization of anaerobic digestate, determining the limits of operational conditions, (moisture content (MC), air flux) that allow for a self-sustaining process. Maximum possible MC was found at 82 wt% with Darcy air flux of 50 cm/s. The digestate destruction rate (kg/(h·m2), and the addition of sand as an inert solid, to enhance the oxygen diffusion, were also investigated. A sand/substrate mass ratio of 1 allowed for SSS at 85 wt% MC, but decreased the digestate destruction rate. The average composition of the emitted gases showed ca. 25% CO and 10% H2, whereas the analysis of the ashes showed almost complete digestate inertization.
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Affiliation(s)
- A Serrano
- School of Civil Engineering, The University of Queensland, Brisbane, 4072, Australia; Instituto de Grasa, Spanish National Research Council (CSIC), Ctra. de Utrera, km. 1, Seville, Spain
| | - H Wyn
- School of Civil Engineering, The University of Queensland, Brisbane, 4072, Australia
| | - L Dupont
- Département Génie Énergétique et Environnement, INSA, 69100, Villeurbanne, France
| | - D K Villa-Gomez
- School of Civil Engineering, The University of Queensland, Brisbane, 4072, Australia
| | - L Yermán
- School of Civil Engineering, The University of Queensland, Brisbane, 4072, Australia.
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25
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Ramalho AS, Cuyx S, Boon M, Dupont L, Proesmans M, Sarouk I, Cordero C, Vermeulen F, De Boeck K. WS11.1 Response to CFTR modulators in organoids from patients with cystic fibrosis as a tool to select candidates to treatment. J Cyst Fibros 2020. [DOI: 10.1016/s1569-1993(20)30222-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Wang G, Muhl L, Padberg Y, Dupont L, Peterson-Maduro J, Stehling M, le Noble F, Colige A, Betsholtz C, Schulte-Merker S, van Impel A. Specific fibroblast subpopulations and neuronal structures provide local sources of Vegfc-processing components during zebrafish lymphangiogenesis. Nat Commun 2020; 11:2724. [PMID: 32483144 PMCID: PMC7264274 DOI: 10.1038/s41467-020-16552-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 05/07/2020] [Indexed: 12/17/2022] Open
Abstract
Proteolytical processing of the growth factor VEGFC through the concerted activity of CCBE1 and ADAMTS3 is required for lymphatic development to occur. How these factors act together in time and space, and which cell types produce these factors is not understood. Here we assess the function of Adamts3 and the related protease Adamts14 during zebrafish lymphangiogenesis and show both proteins to be able to process Vegfc. Only the simultaneous loss of both protein functions results in lymphatic defects identical to vegfc loss-of-function situations. Cell transplantation experiments demonstrate neuronal structures and/or fibroblasts to constitute cellular sources not only for both proteases but also for Ccbe1 and Vegfc. We further show that this locally restricted Vegfc maturation is needed to trigger normal lymphatic sprouting and directional migration. Our data provide a single-cell resolution model for establishing secretion and processing hubs for Vegfc during developmental lymphangiogenesis.
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Affiliation(s)
- Guangxia Wang
- Institute for Cardiovascular Organogenesis and Regeneration, WWU Münster, Münster, Germany.,Faculty of Medicine, WWU Münster, Münster, Germany.,Cells-in-Motion Cluster of Excellence, WWU Münster, Münster, Germany
| | - Lars Muhl
- Integrated Cardio Metabolic Centre, Department of Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Yvonne Padberg
- Institute for Cardiovascular Organogenesis and Regeneration, WWU Münster, Münster, Germany.,Faculty of Medicine, WWU Münster, Münster, Germany.,Cells-in-Motion Cluster of Excellence, WWU Münster, Münster, Germany
| | - Laura Dupont
- Laboratory of Connective Tissue Biology, GIGA, University of Liège, Liege, Belgium
| | | | - Martin Stehling
- Flow Cytometry Unit, Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Ferdinand le Noble
- Department of Cell and Developmental Biology, Zoological Institute and Institute of Biological and Chemical Systems, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany.,Institute of Experimental Cardiology, University of Heidelberg, Heidelberg, Germany.,DZHK (German Center for Cardiovascular Research) partner site, Heidelberg/Mannheim, Germany
| | - Alain Colige
- Laboratory of Connective Tissue Biology, GIGA, University of Liège, Liege, Belgium
| | - Christer Betsholtz
- Integrated Cardio Metabolic Centre, Department of Medicine, Karolinska Institutet, Huddinge, Sweden.,Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
| | - Stefan Schulte-Merker
- Institute for Cardiovascular Organogenesis and Regeneration, WWU Münster, Münster, Germany. .,Faculty of Medicine, WWU Münster, Münster, Germany. .,Cells-in-Motion Cluster of Excellence, WWU Münster, Münster, Germany.
| | - Andreas van Impel
- Institute for Cardiovascular Organogenesis and Regeneration, WWU Münster, Münster, Germany. .,Faculty of Medicine, WWU Münster, Münster, Germany. .,Cells-in-Motion Cluster of Excellence, WWU Münster, Münster, Germany.
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27
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Le Maout P, Laquintinie PS, Lahuec C, Seguin F, Wojkiewicz JL, Redon N, Dupont L. A low cost, handheld E-nose for renal diseases early diagnosis. Annu Int Conf IEEE Eng Med Biol Soc 2019; 2018:2817-2820. [PMID: 30440987 DOI: 10.1109/embc.2018.8512847] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
In the last decade, the use of electronic olfaction systems for the early diagnosis of several pathologies by breath analysis has been investigated. In this study, an electronic nose including seven polyaniline sensors has been developed. An impedance measurement circuit and a micro-computer to process the sensor responses were studied to give a pre-diagnosis conclusion. The measurement accuracy is 97% when the E-nose is exposed to a simulated human breath and different concentration of ammonia, from 500 ppb to 2.8 ppm. The described prototype weights about 300 g and can be used for 14 hours with a smartphone battery.
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28
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Furstova E, Ramalho A, Cuyx S, Proesmans M, Dupont L, Vermeulen F, Amelina E, Kashirskaya N, Drevinek P, De Boeck K. ePS1.03 Investigation of in vitro treatment response to CFTR modulators in patients with cystic fibrosis in a cross-sectional intestinal organoid study. J Cyst Fibros 2019. [DOI: 10.1016/s1569-1993(19)30242-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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29
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Rosell-García T, Paradela A, Bravo G, Dupont L, Bekhouche M, Colige A, Rodriguez-Pascual F. Differential cleavage of lysyl oxidase by the metalloproteinases BMP1 and ADAMTS2/14 regulates collagen binding through a tyrosine sulfate domain. J Biol Chem 2019; 294:11087-11100. [PMID: 31152061 DOI: 10.1074/jbc.ra119.007806] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [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: 01/29/2019] [Revised: 05/24/2019] [Indexed: 12/18/2022] Open
Abstract
Collagens are the main structural component of the extracellular matrix and provide biomechanical properties to connective tissues. A critical step in collagen fibril formation is the proteolytic removal of N- and C-terminal propeptides from procollagens by metalloproteinases of the ADAMTS (a disintegrin and metalloproteinase with thrombospondin motifs) and BMP1 (bone morphogenetic protein 1)/Tolloid-like families, respectively. BMP1 also cleaves and activates the lysyl oxidase (LOX) precursor, the enzyme catalyzing the initial step in the formation of covalent collagen cross-links, an essential process for fibril stabilization. In this study, using murine skin fibroblasts and HEK293 cells, along with immunoprecipitation, LOX enzymatic activity, solid-phase binding assays, and proteomics analyses, we report that the LOX precursor is proteolytically processed by the procollagen N-proteinases ADAMTS2 and ADAMTS14 between Asp-218 and Tyr-219, 50 amino acids downstream of the BMP1 cleavage site. We noted that the LOX sequence between the BMP1- and ADAMTS-processing sites contains several conserved tyrosine residues, of which some are post-translationally modified by tyrosine O-sulfation and contribute to binding to collagen. Taken together, these findings unravel an additional level of regulation in the formation of collagen fibrils. They point to a mechanism that controls the binding of LOX to collagen and is based on differential BMP1- and ADAMTS2/14-mediated cleavage of a tyrosine-sulfated domain.
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Affiliation(s)
- Tamara Rosell-García
- Centro de Biología Molecular "Severo Ochoa," Consejo Superior de Investigaciones Científicas (C.S.I.C.), Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Alberto Paradela
- Proteomics Facility, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (C.S.I.C.), 28049 Madrid, Spain
| | - Gema Bravo
- Proteomics Facility, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (C.S.I.C.), 28049 Madrid, Spain
| | - Laura Dupont
- Laboratory of Connective Tissues Biology, GIGA, University of Liège, 4000 Sart Tilman, Belgium
| | - Mourad Bekhouche
- Laboratory of Connective Tissues Biology, GIGA, University of Liège, 4000 Sart Tilman, Belgium
| | - Alain Colige
- Laboratory of Connective Tissues Biology, GIGA, University of Liège, 4000 Sart Tilman, Belgium
| | - Fernando Rodriguez-Pascual
- Centro de Biología Molecular "Severo Ochoa," Consejo Superior de Investigaciones Científicas (C.S.I.C.), Universidad Autónoma de Madrid, 28049 Madrid, Spain
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30
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Kaux JF, Libertiaux V, Dupont L, Colige A, Denoël V, Lecut C, Hego A, Gustin M, Duwez L, Oury C, Gothot A, Greimers L, Drion P. Platelet-rich plasma (PRP) and tendon healing: comparison between fresh and frozen-thawed PRP. Platelets 2019; 31:221-225. [PMID: 30915890 DOI: 10.1080/09537104.2019.1595563] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2022]
Abstract
Platelet-rich plasma (PRP) is increasingly used in the treatment of musculoskeletal diseases. Its preservation by freezing it for the realization of multiple injections in clinical use has never been discussed. Calcaneal tendons of rats were surgically sectioned. Platelet concentration of the PRP was 2.5 x 106/µl with autologous plasma of rats. Frozen-thawed PRP was prepared by performing two cycles of freezing and thawing on PRP aliquots. Both platelet preparations were injected in the lesion. Biomechanical and histological evaluations were carried out after 7, 20 or 40 days post surgery. After 7 and 40 days, no significant difference was observed between the PRP and the frozen-thawed PRP group. There is however a difference 20 days after surgery: the ultimate tensile strength (UTS) was greater in the fresh PRP group. No obvious difference with histological aspect was observed between the two groups. In conclusion, fresh PRP and frozen-thawed PRP injections can lead to similar results in the healing process of section calcaneal tendons of rats. Improvements with fresh PRP are slight. PRP could thus be frozen to be preserved if multiple injections are needed (e.g. osteoarthritis).
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Affiliation(s)
- Jean-François Kaux
- Physical Medicine and Sports Traumatology Department, SportS2, FIFA Medical Centre of Excellence, University and University Hospital of Liège, Liège, Belgium.,Department of Sport and Rehabilitation Science, University of Liège, Liège, Belgium
| | - Vincent Libertiaux
- Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Liège, Liège, Belgium
| | - Laura Dupont
- Laboratory of Connective Tissues Biology, GIGA-R, University of Liège, Liège, Belgium
| | - Alain Colige
- Laboratory of Connective Tissues Biology, GIGA-R, University of Liège, Liège, Belgium
| | | | - Christelle Lecut
- Department of Laboratory Hematology, University and University Hospital of Liège, Liège, Belgium
| | - Alexandre Hego
- Laboratory of Cardiology, GIGA-Cardiovascular Sciences, University of Liège, Liège, Belgium
| | - Maxime Gustin
- Laboratory of Cardiology, GIGA-Cardiovascular Sciences, University of Liège, Liège, Belgium
| | - Luc Duwez
- Experimental Surgery, GIGA-R & Credec, University of Liège, Liège, Belgium
| | - Cécile Oury
- Laboratory of Cardiology, GIGA-Cardiovascular Sciences, University of Liège, Liège, Belgium
| | - André Gothot
- Department of Laboratory Hematology, University and University Hospital of Liège, Liège, Belgium
| | - Laura Greimers
- Experimental Surgery, GIGA-R & Credec, University of Liège, Liège, Belgium
| | - Pierre Drion
- Experimental Surgery, GIGA-R & Credec, University of Liège, Liège, Belgium
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31
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Affiliation(s)
- K. Schoovaerts
- Department of Respiratory Medicine, University Hospitals Leuven, Leuven, Belgium
| | - N. Lorent
- Department of Respiratory Medicine, University Hospitals Leuven, Leuven, Belgium
| | - P. Goeminne
- Department of Respiratory Medicine, AZ Nikolaas, Sint-Niklaas, Belgium
| | - S. Aliberti
- Department of Pathophysiology and Transplantation, University of Milan, Cardio-thoracic Unit and Adult Cystic Fibrosis Centre, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - L. Dupont
- Department of Respiratory Medicine, University Hospitals Leuven, Leuven, Belgium
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32
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Taheri S, James S, Roy V, Decaëns T, Williams B, Anderson F, Rougerie R, Chang CH, Brown G, Cunha L, Stanton D, Da Silva E, Chen JH, Lemmon A, Moriarty Lemmon E, Bartz M, Baretta D, Barois I, Lapied E, Coulis M, Dupont L. Complex taxonomy of the ‘brush tail’ peregrine earthworm Pontoscolex corethrurus. Mol Phylogenet Evol 2018; 124:60-70. [DOI: 10.1016/j.ympev.2018.02.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 02/20/2018] [Accepted: 02/20/2018] [Indexed: 01/19/2023]
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33
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Ramalho A, Peetermans P, Proesmans M, Dupont L, Vermeulen F, De Boeck K. WS15.3 Patterns of response to lumacaftor and ivacaftor in rectal organoids. J Cyst Fibros 2018. [DOI: 10.1016/s1569-1993(18)30204-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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34
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Dupont L, Ehx G, Chantry M, Monseur C, Leduc C, Janssen L, Cataldo D, Thiry M, Jerome C, Thomassin JM, Nusgens B, Dubail J, Baron F, Colige A. Spontaneous atopic dermatitis due to immune dysregulation in mice lacking Adamts2 and 14. Matrix Biol 2018; 70:140-157. [PMID: 29649548 DOI: 10.1016/j.matbio.2018.04.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 12/01/2017] [Revised: 04/05/2018] [Accepted: 04/05/2018] [Indexed: 12/12/2022]
Abstract
Since its first description, ADAMTS14 has been considered as an aminoprocollagen peptidase based on its high similarity with ADAMTS3 and ADAMTS2. As its importance for procollagen processing was never experimentally demonstrated in vivo, we generated Adamts14-deficient mice. They are healthy, fertile and display normal aminoprocollagen processing. They were further crossed with Adamts2-deficient mice to evaluate potential functional redundancies between these two highly related enzymes. Initial characterizations made on young Adamts2-Adamts14-deficient animals showed the same phenotype as that of Adamts2-deficient mice, with no further reduction of procollagen processing and no significant aggravation of the structural alterations of collagen fibrils. However, when evaluated at older age, Adamts2-Adamts14-deficient mice surprisingly displayed epidermal lesions, appearing in 2 month-old males and later in some females, and then worsening rapidly. Immunohistological evaluations of skin sections around the lesions revealed thickening of the epidermis, hypercellularity in the dermis and extensive infiltration by immune cells. Additional investigations, performed on young mice before the formation of the initial lesions, revealed that the primary cause of the phenotype was not related to alterations of the epidermal barrier but was rather the result of an abnormal activation and differentiation of T lymphocytes towards a Th1 profile. However, the primary molecular defect probably does not reside in the immune system itself since irradiated Adamts2-Adamts14-deficient mice grafted with WT immune cells still developed lesions. While originally created to better characterize the common and specific functions of ADAMTS2 and ADAMTS14 in extracellular matrix and connective tissues homeostasis, the Adamts2-Adamts14-deficient mice revealed an unexpected but significant role of ADAMTS in the regulation of immune system, possibly through a cross-talk involving mesenchymal cells and the TGFβ pathways.
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Affiliation(s)
- L Dupont
- Laboratory of Connective Tissues Biology, GIGA-R, University of Liege, 4000 Sart Tilman, Belgium.
| | - G Ehx
- Laboratory of Hematology, GIGA-R, University of Liege, 4000 Sart Tilman, Belgium
| | - M Chantry
- Laboratory of Connective Tissues Biology, GIGA-R, University of Liege, 4000 Sart Tilman, Belgium
| | - C Monseur
- Laboratory of Connective Tissues Biology, GIGA-R, University of Liege, 4000 Sart Tilman, Belgium
| | - C Leduc
- Laboratory of Connective Tissues Biology, GIGA-R, University of Liege, 4000 Sart Tilman, Belgium
| | - L Janssen
- Laboratory of Connective Tissues Biology, GIGA-R, University of Liege, 4000 Sart Tilman, Belgium
| | - D Cataldo
- Laboratory of Tumor and Developmental Biology, GIGA-R, University of Liege, 4000 Sart Tilman, Belgium
| | - M Thiry
- Laboratory of Cell Biology, GIGA-R, University of Liege, 4000 Sart Tilman, Belgium
| | - C Jerome
- Center for Educational and Research on Macromolecules (CERM), University of Liege, 4000 Sart Tilman, Belgium
| | - J-M Thomassin
- Center for Educational and Research on Macromolecules (CERM), University of Liege, 4000 Sart Tilman, Belgium
| | - B Nusgens
- Laboratory of Connective Tissues Biology, GIGA-R, University of Liege, 4000 Sart Tilman, Belgium
| | - J Dubail
- Laboratory of Connective Tissues Biology, GIGA-R, University of Liege, 4000 Sart Tilman, Belgium; Department of Genetics, INSERM UMR1163, Institut Imagine, Paris, France
| | - F Baron
- Laboratory of Hematology, GIGA-R, University of Liege, 4000 Sart Tilman, Belgium
| | - A Colige
- Laboratory of Connective Tissues Biology, GIGA-R, University of Liege, 4000 Sart Tilman, Belgium
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Brouillard P, Dupont L, Helaers R, Coulie R, Tiller GE, Peeden J, Colige A, Vikkula M. Loss of ADAMTS3 activity causes Hennekam lymphangiectasia-lymphedema syndrome 3. Hum Mol Genet 2018; 26:4095-4104. [PMID: 28985353 DOI: 10.1093/hmg/ddx297] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Accepted: 07/23/2017] [Indexed: 01/05/2023] Open
Abstract
Primary lymphedema is due to developmental and/or functional defects in the lymphatic system. It may affect any part of the body, with predominance for the lower extremities. Twenty-seven genes have already been linked to primary lymphedema, either isolated, or as part of a syndrome. The proteins that they encode are involved in VEGFR3 receptor signaling. They account for about one third of all primary lymphedema cases, underscoring the existence of additional genetic factors. We used whole-exome sequencing to investigate the underlying cause in a non-consanguineous family with two children affected by lymphedema, lymphangiectasia and distinct facial features. We discovered bi-allelic missense mutations in ADAMTS3. Both were predicted to be highly damaging. These amino acid substitutions affect well-conserved residues in the prodomain and in the peptidase domain of ADAMTS3. In vitro, the mutant proteins were abnormally processed and sequestered within cells, which abolished proteolytic activation of pro-VEGFC. VEGFC processing is also affected by CCBE1 mutations that cause the Hennekam lymphangiectasia-lymphedema syndrome syndrome type1. Our data identifies ADAMTS3 as a novel gene that can be mutated in individuals affected by the Hennekam syndrome. These patients have distinctive facial features similar to those with mutations in CCBE1. Our results corroborate the recent in vitro and murine data that suggest a close functional interaction between ADAMTS3 and CCBE1 in triggering VEGFR3 signaling, a cornerstone for the differentiation and function of lymphatic endothelial cells.
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Affiliation(s)
- Pascal Brouillard
- Human Molecular Genetics, de Duve Institute, University of Louvain, 1200 Brussels, Belgium
| | - Laura Dupont
- Laboratory of Connective Tissues Biology, University of Liège, 4000 Liège, Belgium
| | - Raphael Helaers
- Human Molecular Genetics, de Duve Institute, University of Louvain, 1200 Brussels, Belgium
| | - Richard Coulie
- Human Molecular Genetics, de Duve Institute, University of Louvain, 1200 Brussels, Belgium
| | - George E Tiller
- Pediatric Medical Genetics, Vanderbilt University Medical Center, Nashville 37232, TN, USA
| | - Joseph Peeden
- East Tennessee Children's Hospital, University of Tennessee Medical Center, Knoxville, TN 37916, USA
| | - Alain Colige
- Laboratory of Connective Tissues Biology, University of Liège, 4000 Liège, Belgium
| | - Miikka Vikkula
- Human Molecular Genetics, de Duve Institute, University of Louvain, 1200 Brussels, Belgium.,Walloon Excellence in Life Sciences and Biotechnology (WELBIO), de Duve Institute, University of Louvain, 1200 Brussels, Belgium
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Decaesteker T, Seys S, Hox V, Dilissen E, Marijsse G, Manhaeghe L, Hellings P, Vanoirbeek J, Bullens D, Dupont L. Serum and sputum calprotectin, a reflection of neutrophilic airway inflammation in asthmatics after high-altitude exposure. Clin Exp Allergy 2017; 47:1675-1677. [PMID: 28992401 DOI: 10.1111/cea.13043] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- T Decaesteker
- Laboratory of Pneumology, Department of Clinical and Experimental Medicine, KU Leuven, Leuven, Belgium
| | - S Seys
- Laboratory of Clinical Immunology, Department of Immunology and Microbiology, KU Leuven, Leuven, Belgium
| | - V Hox
- Laboratory of Clinical Immunology, Department of Immunology and Microbiology, KU Leuven, Leuven, Belgium
| | - E Dilissen
- Laboratory of Clinical Immunology, Department of Immunology and Microbiology, KU Leuven, Leuven, Belgium
| | - G Marijsse
- Laboratory of Clinical Immunology, Department of Immunology and Microbiology, KU Leuven, Leuven, Belgium
| | - L Manhaeghe
- Department of Respiratory Diseases, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | - P Hellings
- Laboratory of Clinical Immunology, Department of Immunology and Microbiology, KU Leuven, Leuven, Belgium.,Department of Otorhinolaryngology, Head and Neck Surgery, University Hospitals Leuven, Leuven, Belgium
| | - J Vanoirbeek
- Laboratory of Environment and Health, Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium
| | - D Bullens
- Laboratory of Pediatric Immunology, Department of Immunology and Microbiology, KU Leuven, Leuven, Belgium.,Paediatric Department, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | - L Dupont
- Laboratory of Pneumology, Department of Clinical and Experimental Medicine, KU Leuven, Leuven, Belgium.,Department of Respiratory Diseases, University Hospitals Leuven, KU Leuven, Leuven, Belgium
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Havermans T, Lorent N, Colpaert K, Theunissen B, Kinoo D, Hollemans G, Dupont L. 396 Agreement between patients' self-report and multidisciplinary CF professionals' proxy report of symptoms of anxiety and depression. J Cyst Fibros 2017. [DOI: 10.1016/s1569-1993(17)30726-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Fouhy F, Ronan N, McCarthy Y, Arooj P, Daly M, Flanagan E, Deane J, O'Sullivan O, Murphy K, Fleming C, McCarthy M, Shortt C, Eustace J, Shanahan F, Rea M, Ross R, Floto R, Harrison M, Haworth C, Dupont L, Stanton C, Plant B. WS03.3 A longitudinal, multi-centre investigation into the gut microbiota of adult CF patients – the CFMATTERS perspective. J Cyst Fibros 2017. [DOI: 10.1016/s1569-1993(17)30170-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Spence C, Einarsson G, Lee A, McGettigan C, Johnston E, Verleden S, Vanaudenaerde B, McDonough J, Lammertyn E, Dupont L, Elborn J, Gilpin D, Tunney M. WS03.6 Estimation of total bacterial load in explanted cystic fibrosis (CF) lungs via qPCR. J Cyst Fibros 2017. [DOI: 10.1016/s1569-1993(17)30173-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Dupont L, Couchot P, Foissy A, Mottet B. Étude des propriétés rhéologiques de suspensions
d’alumine en présence d’ions divalents
et d’acide polyacrylique. ACTA ACUST UNITED AC 2017. [DOI: 10.1051/jcp/1997941257] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Dupont L, Torres-Leguizamon M, René-Corail P, Mathieu J. Landscape features impact connectivity between soil populations: a comparative study of gene flow in earthworms. Mol Ecol 2017; 26:3128-3140. [DOI: 10.1111/mec.14102] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 02/20/2017] [Accepted: 02/28/2017] [Indexed: 12/28/2022]
Affiliation(s)
- L. Dupont
- Université Paris Est Créteil (UPEC); Université Pierre et Marie Curie (UPMC); Paris 7; CNRS; INRA; IRD; Institut d’écologie et des Sciences de l'Environnement de Paris; Créteil Cedex France
| | - M. Torres-Leguizamon
- Université Paris Est Créteil (UPEC); Université Pierre et Marie Curie (UPMC); Paris 7; CNRS; INRA; IRD; Institut d’écologie et des Sciences de l'Environnement de Paris; Créteil Cedex France
| | - P. René-Corail
- Université Paris Est Créteil (UPEC); Université Pierre et Marie Curie (UPMC); Paris 7; CNRS; INRA; IRD; Institut d’écologie et des Sciences de l'Environnement de Paris; Créteil Cedex France
| | - J. Mathieu
- Sorbonne Universités; UPMC; UPEC; Paris 7; CNRS; INRA; IRD; Institut d'Ecologie et des Sciences de l'Environnement de Paris; Paris France
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Everaerts S, Vermeersch K, Van Hoeyveld E, Vanaudenaerde B, Bossuyt X, Lagrou K, Dupont L, Janssens W. Sensitization to Aspergillus fumigatus in COPD patients with and without bronchiectasis. Pneumologie 2016. [DOI: 10.1055/s-0036-1592237] [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: 10/20/2022]
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Dupont L. Lost in translation? Therapeutic contrasts in CF and non-CF bronchiectasis. Pneumologie 2016. [DOI: 10.1055/s-0036-1592229] [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: 10/20/2022]
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Dobbels F, Verleden G, Dupont L, Vanhaecke J, De Geest S. To transplant or not? The importance of psychosocial and behavioural factors before lung transplantation. Chron Respir Dis 2016; 3:39-47. [PMID: 16509176 DOI: 10.1191/1479972306cd082ra] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [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: 11/05/2022] Open
Abstract
The gratifying results of lung transplantation in terms of survival and quality of life stimulate the referral of an ever-increasing number of patients with end-stage lung disease. This in turn compounds the organ shortage, which is the limiting factor in the transplantation rate. In the absence of good alternative treatment modalities, an evidence-based pretransplant screening process is a prerequisite to detennine which patients will benefit most from transplantation. Within this evidence-based screening process, medical selection criteria are well established. There is a growing awareness that psychosocial and behavioural factors may determine outcome after transplantation as well. This paper reviews the available evidence for psychosocial and behavioural factors in the screening process for lung transplantation. The relation of various factors with post-transplant outcome was explored. Psychosocial characteristics before transplantation consist of 1) anxiety and depression, 2) personality disorders, 3) neurocognitive problems, and 4) lack of social support. Pretransplant behavioural factors include 1) noncompliance with medication, 2) alcohol abuse or dependence, 3) smoking, 4) noncompliance with dietary guidelines, and 5) noncompliance with monitoring of vital parameters and infections. It appears that the lack of rigorous studies limit the feasibility of an evidence-based screening process. Prospective studies are crucial to this further investigation of the relationship between psychosocial and behavioural determinants before transplantation and outcomes after transplantation, in terms of compliance, morbidity, and mortality. Identification of modifiable risk factors for poor outcome before transplantation is a first step in developing interventions.
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Affiliation(s)
- F Dobbels
- Center for Health Services and Nursing Research, Katholieke Universiteit Leuven, Belgium.
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Pironet Z, Ceulemans L, Dupont L, Vos R, Proesmans M, De Boeck K, Neyrinck A, Schetz M, Pirenne J, Coosemans W, Decaluwe H, De Leyn P, Depypere L, Nafteux P, Van Veer H, Verleden G, Van Raemdonck D. F-086LUNG TRANSPLANTATION FOR CYSTIC FIBROSIS: A SINGLE-CENTRE 24-YEAR EXPERIENCE. Interact Cardiovasc Thorac Surg 2016. [DOI: 10.1093/icvts/ivw260.85] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Havermans T, Luyckx K, Stiers L, Wyffels F, De Boeck K, Vos R, Dupont L. 247 Long-lasting anxiety and depression in patients with cystic fibrosis: the importance of illness perceptions and social support. J Cyst Fibros 2016. [DOI: 10.1016/s1569-1993(16)30486-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Stiers L, Luyckx K, Wyffels F, Boeck KD, Vos R, Dupont L, Havermans T. 236 Differences in perceptions of illness and its treatment before and after transplantation: implications for treatment adherence. J Cyst Fibros 2016. [DOI: 10.1016/s1569-1993(16)30475-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Van Raemdonck D, Neyrinck A, Van Cromphaut S, Verleden S, Vanaudenaerde B, Claes D, Degezelle K, Desschans B, Vos R, Dupont L, Coosemans W, Decaluwé H, Depypere L, Nafteux P, Van Veer H, De Leyn P, Verleden G. Transplantation of Lungs Recovered from Donors After Euthanasia Results in Excellent Long-Term Outcome. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.1050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Dobbels F, De Bleser L, Berben L, Kristanto P, Dupont L, Nevens F, Vanhaecke J, Verleden G, De Geest S. Testing the Efficacy of a Multicomponent Theory-Based Tailored Behavioral Medication Adherence Intervention in Transplantation: The MAESTRO-TX RCT. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.248] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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50
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Dupont L, Porco D, Symondson WOC, Roy V. Hybridization relics complicate barcode-based identification of species in earthworms. Mol Ecol Resour 2016; 16:883-94. [PMID: 26929276 DOI: 10.1111/1755-0998.12517] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [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: 10/16/2015] [Revised: 02/05/2016] [Accepted: 02/05/2016] [Indexed: 11/28/2022]
Abstract
Introgressive hybridization results in mito-nuclear discordance which could obscure the delimitation of closely related taxa. Although such events are increasingly reported, they have been poorly studied in earthworms. Here, we propose a method for investigating the degree of introgressive hybridization between three taxa of the Allolobophora chlorotica aggregate within two field populations (N = 67 and N = 105) using a reference data set including published DNA barcoding and microsatellite data of all known A. chlorotica lineages (N = 85). For this, we used both molecular phylogenetic and population genetic approaches. The test of correspondence between mitochondrial cytochrome c oxidase I (COI) lineages and clusters of nuclear microsatellite genotypes allowed individuals to be sorted in three categories (matching, admixed and nonmatching) and additional markers (mitochondrial NADH dehydrogenase subunit 1, nuclear Histone 3 and Internal transcribed Spacer Region 2) were used for phylogenetic reconstructions in order to check assignments. Although 15 admixed individuals were observed, no early-generation hybrids were detected within the two populations. Interestingly, 14 nonmatching individuals (i.e. with a mtDNA haplotype that did not correspond to their nuclear cluster) were detected, a pattern that would result after multiple generations of unidirectional hybridization of female from one taxon to male of the other taxon. Because earthworms are simultaneous hermaphrodites, these events of unidirectional hybridization suggest sterility of the male function in several crosses and highlight that some individuals can be misidentified if reliance is placed on COI barcodes alone. These findings could improve the use of these barcodes in earthworms for species delineation.
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Affiliation(s)
- L Dupont
- Institut d'écologie et des sciences de l'environnement de Paris, Université Paris Est Créteil, 61 avenue du Général de Gaulle, 94010, Créteil Cedex, France
| | - D Porco
- Bâtiment IRESE A, Université de Rouen - Laboratoire ECODIV, Place Emile Blondel, 76821, Mont Saint Aignan Cedex, France
| | - W O C Symondson
- Cardiff School of Biosciences, Cardiff University, Museum Avenue, Cardiff, CF10 3AX, UK
| | - V Roy
- Institut d'écologie et des sciences de l'environnement de Paris, Université Paris Est Créteil, 61 avenue du Général de Gaulle, 94010, Créteil Cedex, France
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