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Mennen KHJE, Rasing SPA, de Winter RFP, van den Bogaard M, van den Berg M, van Rossum JM, Creemers DHM. [Diagnostics and treatment of suicidality; a matter of customization]. Tijdschr Psychiatr 2024; 66:101-106. [PMID: 38512149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
This article illustrates the importance of conducting a comprehensive analysis of suicidality through the case study of an adolescent patient dealing with both depressive disorder and obsessive-compulsive disorder. The aim of treating suicidality is to address the underlying psychiatric conditions and factors contributing to the disorder. This necessitates a thorough evaluation of the treatment environment, the establishment of continuous care, and ensuring safety. By utilizing a new model to distinguish various forms of suicidal behavior and examining suicidality as a distinct phenomenon, it becomes possible to create individualized diagnostic and treatment approaches, along with effective risk assessments. In the presented patient, intrusive thoughts significantly impacted her suicidality. The treatment approach for patient A involved employing eye movement dual task (EMDT), exposure therapy and strategies to enhance autonomy. This approach aims to reduce suicidality, facilitate recovery, and alleviate the fear of losing control.
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van den Berg M, van Beuningen FE, Ter Maaten JC, Bouma HR. Hospital-related costs of sepsis around the world: A systematic review exploring the economic burden of sepsis. J Crit Care 2022; 71:154096. [PMID: 35839604 DOI: 10.1016/j.jcrc.2022.154096] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [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: 02/17/2022] [Revised: 05/29/2022] [Accepted: 06/02/2022] [Indexed: 10/17/2022]
Abstract
AIM The aim of this study was to examine the quality of manuscripts reporting sepsis health care costs and to provide an overview of hospital-related expenditures for sepsis in adult patients around the world. METHODS We systematically searched the PubMed, EMBASE, Cochrane and Google Scholar to identify relevant studies between January 2010 and January 2022. We selected articles that provided costs and cost-effectiveness analyses, defined sepsis and described their cost calculation method. All costs were adjusted to 2020 US dollars. Medians and interquartile ranges (IQRs) for various costs of sepsis were calculated. The quality of economic studies was assessed using the Drummond 10-item checklist. RESULTS Overall, 26 studies met our eligibility criteria. The mean total hospital costs per patient varied largely, between €1101 and €91,951. The median (IQR) of the total sepsis costs per country were €36,191 (€17,158 - €53,349), which equals €50 (€34 - €84) per capita annually. The relative amount of healthcare budget spent on sepsis was 2.65%, which equals 0.33% of the gross national product (GNP). CONCLUSION While general sepsis costs are high, there is considerable variability between countries regarding the costs of sepsis. Further studies examining the impact on sepsis costs, especially on the general ward, can help justify, design and monitor initiatives on prevention, diagnosis, and treatment of this time-critical and potentially preventable disease.
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Affiliation(s)
- M van den Berg
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - F E van Beuningen
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - J C Ter Maaten
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - H R Bouma
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands; Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands.
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van der Kooi A, van Dijk M, Broer L, van den Berg M, Laven J, van Leeuwen F, Ronckers C, van der Heiden-van der Loo M, Hudson M, Byrne J, Pluijm S, Spix C, Kaatsch P, Kremer L, Yasui Y, Brooke J, Uitterlinden A, van den Heuvel-Eibrink M, van Dulmen-den Broeder E. 072 Possible modification of BRSK1 on the risk of alkylating chemotherapy-related reduced ovarian function. Eur J Obstet Gynecol Reprod Biol 2022. [DOI: 10.1016/j.ejogrb.2022.02.101] [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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Aapkes SE, Bernts LHP, van den Berg AP, van den Berg M, Blokzijl H, Cantineau AEP, van Gastel MDA, de Haas RJ, Kappert P, Müller RU, Nevens F, Torra R, Visser A, Drenth JPH, Gansevoort RT. Protocol for a randomized controlled multicenter trial assessing the efficacy of leuprorelin for severe polycystic liver disease: the AGAINST-PLD study. BMC Gastroenterol 2022; 22:82. [PMID: 35216547 PMCID: PMC8876117 DOI: 10.1186/s12876-022-02142-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 02/06/2022] [Indexed: 11/11/2022] Open
Abstract
Background In patients with severe polycystic liver disease (PLD), there is a need for new treatments. Estrogens and possibly other female sex hormones stimulate growth in PLD. In some patients, liver volume decreases after menopause. Female sex hormones could therefore be a target for therapy. The AGAINST-PLD study will examine the efficacy of the GnRH agonist leuprorelin, which blocks the production of estrogen and other sex hormones, to reduce liver growth in PLD.
Methods The AGAINST-PLD study is an investigator-driven, multicenter, randomized controlled trial. Institutional review board (IRB) approval was received at the University Medical Center of Groningen and will be collected in other sites before opening these sites. Thirty-six female, pre-menopausal patients, with a very large liver volume for age (upper 10% of the PLD population) and ongoing liver growth despite current treatment options will be randomized to direct start of leuprorelin or to 18 months standard of care and delayed start of leuprorelin. Leuprorelin is given as 3.75 mg subcutaneously (s.c.) monthly for the first 3 months followed by 3-monthly depots of 11.25 mg s.c. The trial duration is 36 months. MRI scans to measure liver volume will be performed at screening, 6 months, 18 months, 24 months and 36 months. In addition, blood will be drawn, DEXA-scans will be performed and questionnaires will be collected. This design enables comparison between patients on study treatment and standard of care (first 18 months) and within patients before and during treatment (whole trial). Main outcome is annualized liver growth rate compared between standard of care and study treatment. Secondary outcomes are PLD disease severity, change in liver growth within individuals and (serious) adverse events. The study is designed as a prospective open-label study with blinded endpoint assessment (PROBE). Discussion In this trial, we combined the expertise of hepatologist, nephrologists and gynecologists to study the effect of leuprorelin on liver growth in PLD. In this way, we hope to stop liver growth, reduce symptoms and reduce the need for liver transplantation in severe PLD. Trial registration Eudra CT number 2020-005949-16, registered at 15 Dec 2020. https://www.clinicaltrialsregister.eu/ctr-search/search?query=2020-005949-16.
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Affiliation(s)
- S E Aapkes
- Department of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - L H P Bernts
- Department of Gastroenterology and Hepatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - A P van den Berg
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - M van den Berg
- Department of Obstetrics and Gynecology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - H Blokzijl
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - A E P Cantineau
- Department of Obstetrics and Gynecology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - M D A van Gastel
- Department of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - R J de Haas
- Department of Radiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - P Kappert
- Department of Radiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - R U Müller
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, Faculty of Medicine, University Hospital Cologne, University of Cologne, Kerpener Straße 62, 50937, Cologne, Germany
| | - F Nevens
- Department of Gastroenterology and Hepatology, Universiteitsziekenhuis Leuven, Leuven, Belgium
| | - R Torra
- Department of Nephrology, Fundacio Puigvert, Barcelona, Spain
| | - A Visser
- Department of Applied Health Sciences, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - J P H Drenth
- Department of Gastroenterology and Hepatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - R T Gansevoort
- Department of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
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Aapkes SE, Bernts LH, van den Berg M, Gansevoort RT, Drenth JP. Tamoxifen for the treatment of polycystic liver disease: A case report. Medicine (Baltimore) 2021; 100:e26797. [PMID: 34397882 PMCID: PMC8360467 DOI: 10.1097/md.0000000000026797] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 07/12/2021] [Indexed: 01/04/2023] Open
Abstract
RATIONALE Polycystic liver disease is a rare disease characterized by the growth of numerous cysts in the liver. The liver function remains well preserved, but liver volumes can grow very large, and some patients ultimately need a liver transplantation. Other treatment options are limited and there is an unmet need for new therapeutic options. PATIENT CONCERNS We describe a 59-year-old patient with pain in the abdomen, especially when bending forward. Five years ago, she was diagnosed with breast cancer and as an incidental finding a couple of large liver cysts were diagnosed, explaining her abdominal pain. DIAGNOSIS Polycystic liver disease with several large liver cysts. INTERVENTIONS The patient was treated with tamoxifen, an estrogen receptor modulator, as treatment for her hormone receptor positive breast cancer. One of the liver cysts was aspirated. OUTCOMES In the 4.6 years after the start of tamoxifen treatment, 20 mg once daily, the volume of her liver cysts decreased remarkably. There was a reduction of combined cyst volume from 311 mL to 22 mL without percutaneous drainage. LESSONS Epidemiological as well as experimental evidence supports a pivotal role for estrogens as a driver for growth of polycystic livers. Estrogen antagonism has often been proposed as a therapeutic target, but supporting evidence is lacking in the literature. We hypothesize that the decrease in cyst size in this patient was caused by tamoxifen therapy, suggesting an in vivo antagonistic effect on cystic cholangiocytes. This is an important finding because tamoxifen could be a promising new treatment option for polycystic liver disease.
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Affiliation(s)
- Sophie E. Aapkes
- Department Nephrology, University Medical Center, Groningen, The Netherlands
| | - Lucas H.P. Bernts
- Department Gastroenterology and Hepatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - M. van den Berg
- Department Gynecology, University Medical Center, Groningen, The Netherlands
| | - Ron T. Gansevoort
- Department Nephrology, University Medical Center, Groningen, The Netherlands
| | - Joost P.H. Drenth
- Department Gastroenterology and Hepatology, Radboud University Medical Center, Nijmegen, The Netherlands
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Magosso M, van den Berg M, van der Schaaf J. Kinetic study and modeling of the Schotten–Baumann synthesis of peroxyesters using phase-transfer catalysts in a capillary microreactor. REACT CHEM ENG 2021. [DOI: 10.1039/d1re00141h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effect of several operating parameters on the kinetics of the synthesis of the peroxyester tert-butyl peroxy-2-ethylhexanoate was investigated in detail using a capillary microreactor and a reactor model was developed.
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Affiliation(s)
- M. Magosso
- Sustainable Process Engineering, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - M. van den Berg
- Nouryon, Polymer Catalysts, P.O. Box 10, 7400 AA, Deventer, The Netherlands
| | - J. van der Schaaf
- Sustainable Process Engineering, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
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Brakel JW, Berendsen TA, Callenbach PMC, van der Burgh J, Hissink RJ, van den Berg M. Screening for aneurysms of the abdominal aorta using a simple screening device. Ultrasound J 2020; 12:46. [PMID: 33175986 PMCID: PMC7658288 DOI: 10.1186/s13089-020-00192-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 09/21/2020] [Indexed: 11/10/2022] Open
Abstract
Introduction Several countries advocate screening for aneurysms of the abdominal aorta (AAA) in selected patients. In the Netherlands, routine screening is currently under review by the National Health Council. In any screening programme, cost-efficiency and accuracy are key. In this study, we evaluate the Aorta Scan (Verathon, Amsterdam, Netherlands), a cost-effective and easy-to-use screening device based on bladder scan technology, which enables untrained personnel to screen for AAA. Methods We subjected 117 patients to an Aorta Scan and compared the results to the gold standard (abdominal ultrasound). We used statistical analysis to determine sensitivity and specificity of the Aorta Scan, as well as the positive and negative predictive values, accuracy, and inter-test agreement (Kappa). Results Sensitivity and specificity were 0.86 and 0.98, respectively. Positive predictive value was 0.98 and negative predictive value was 0.88. Accuracy was determined at 0.92 and the Kappa value was 0.85. When waist–hip circumferences (WHC) of > 115 cm were excluded, sensitivity raised to 0.96, specificity stayed 0.98, positive and negative predictive value were 0.98 and 0.96, respectively, accuracy to 0.97, and Kappa to 0.94. Conclusion Herein, we show that the Aorta Scan is a cost-effective and very accurate screening tool, especially in patients with WHC below 115 cm, which makes it a suitable candidate for implementation into clinical practice, specifically in the setting of screening selected populations for the presence of AAA.
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Affiliation(s)
- J W Brakel
- Department of Surgery, Treant Zorggroep, Boermarkeweg 60, 7824 AA, Emmen, Netherlands.
| | - T A Berendsen
- Department of Surgery, Treant Zorggroep, Boermarkeweg 60, 7824 AA, Emmen, Netherlands
| | - P M C Callenbach
- Department of Surgery, Treant Zorggroep, Boermarkeweg 60, 7824 AA, Emmen, Netherlands
| | - J van der Burgh
- Department of Surgery, Treant Zorggroep, Boermarkeweg 60, 7824 AA, Emmen, Netherlands
| | - R J Hissink
- Department of Surgery, Treant Zorggroep, Boermarkeweg 60, 7824 AA, Emmen, Netherlands
| | - M van den Berg
- Department of Surgery, Treant Zorggroep, Boermarkeweg 60, 7824 AA, Emmen, Netherlands
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Kersalé M, Meinen CS, Perez RC, Le Hénaff M, Valla D, Lamont T, Sato OT, Dong S, Terre T, van Caspel M, Chidichimo MP, van den Berg M, Speich S, Piola AR, Campos EJD, Ansorge I, Volkov DL, Lumpkin R, Garzoli SL. Highly variable upper and abyssal overturning cells in the South Atlantic. Sci Adv 2020; 6:eaba7573. [PMID: 32821826 PMCID: PMC7406378 DOI: 10.1126/sciadv.aba7573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 06/25/2020] [Indexed: 06/11/2023]
Abstract
The Meridional Overturning Circulation (MOC) is a primary mechanism driving oceanic heat redistribution on Earth, thereby affecting Earth's climate and weather. However, the full-depth structure and variability of the MOC are still poorly understood, particularly in the South Atlantic. This study presents unique multiyear records of the oceanic volume transport of both the upper (<~3100 meters) and abyssal (>~3100 meters) overturning cells based on daily moored measurements in the South Atlantic at 34.5°S. The vertical structure of the time-mean flows is consistent with the limited historical observations. Both the upper and abyssal cells exhibit a high degree of variability relative to the temporal means at time scales, ranging from a few days to a few weeks. Observed variations in the abyssal flow appear to be largely independent of the flow in the overlying upper cell. No meaningful trends are detected in either cell.
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Affiliation(s)
- M. Kersalé
- Cooperative Institute for Marine and Atmospheric Studies, University of Miami, Miami, FL, USA
- NOAA Atlantic Oceanographic and Meteorological Laboratory, Miami, FL, USA
| | - C. S. Meinen
- NOAA Atlantic Oceanographic and Meteorological Laboratory, Miami, FL, USA
| | - R. C. Perez
- NOAA Atlantic Oceanographic and Meteorological Laboratory, Miami, FL, USA
| | - M. Le Hénaff
- Cooperative Institute for Marine and Atmospheric Studies, University of Miami, Miami, FL, USA
- NOAA Atlantic Oceanographic and Meteorological Laboratory, Miami, FL, USA
| | - D. Valla
- Servicio de Hidrografía Naval, Buenos Aires, Argentina
| | - T. Lamont
- Oceans and Coasts Research Branch, Department of Environmental Affairs, Cape Town, South Africa
- Department of Oceanography, University of Cape Town, Rondebosch 7701, South Africa
| | - O. T. Sato
- Oceanographic Institute, University of São Paulo, São Paulo, Brazil
| | - S. Dong
- NOAA Atlantic Oceanographic and Meteorological Laboratory, Miami, FL, USA
| | - T. Terre
- IFREMER, University of Brest, CNRS, IRD, Laboratoire d'Océanographie Physique et Spatiale (LOPS), IUEM, Plouzané, France
| | - M. van Caspel
- Oceanographic Institute, University of São Paulo, São Paulo, Brazil
| | - M. P. Chidichimo
- Servicio de Hidrografía Naval, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
- Instituto Franco-Argentino sobre Estudio del Clima y sus Impactos (UMI-IFAECI/CNRS-CONICET-UBA), Buenos Aires, Argentina
| | - M. van den Berg
- Oceans and Coasts Research Branch, Department of Environmental Affairs, Cape Town, South Africa
| | - S. Speich
- Laboratoire de Météorologie Dynamique–IPSL, Ecole Normale Supérieure, Paris, France
| | - A. R. Piola
- Servicio de Hidrografía Naval, Buenos Aires, Argentina
- Instituto Franco-Argentino sobre Estudio del Clima y sus Impactos (UMI-IFAECI/CNRS-CONICET-UBA), Buenos Aires, Argentina
- Universidad de Buenos Aires, Buenos Aires, Argentina
| | - E. J. D. Campos
- Oceanographic Institute, University of São Paulo, São Paulo, Brazil
- Department of Biology, Chemistry and Environmental Sciences, School of Arts and Sciences, American University of Sharjah, Sharjah, United Arab Emirates
| | - I. Ansorge
- Department of Oceanography, University of Cape Town, Rondebosch 7701, South Africa
| | - D. L. Volkov
- Cooperative Institute for Marine and Atmospheric Studies, University of Miami, Miami, FL, USA
- NOAA Atlantic Oceanographic and Meteorological Laboratory, Miami, FL, USA
| | - R. Lumpkin
- NOAA Atlantic Oceanographic and Meteorological Laboratory, Miami, FL, USA
| | - S. L. Garzoli
- Cooperative Institute for Marine and Atmospheric Studies, University of Miami, Miami, FL, USA
- NOAA Atlantic Oceanographic and Meteorological Laboratory, Miami, FL, USA
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van den Brand AD, Rubinstein E, de Jong PC, van den Berg M, van Duursen M. Assessing anti-estrogenic effects of AHR ligands in primary human and rat endometrial epithelial cells. Reprod Toxicol 2020; 96:202-208. [PMID: 32668270 DOI: 10.1016/j.reprotox.2020.07.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 07/08/2020] [Accepted: 07/10/2020] [Indexed: 02/08/2023]
Abstract
Unopposed estrogenic action in the uterus can lead to the development of endometrial cancer in both humans and rats. Aryl hydrocarbon receptor (AHR) activation gives rise to anti-estrogenic actions and may consequently reduce the development of endometrial cancer. In this study, the anti-estrogenic potential of the AHR ligands 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) and DELAQ, a metabolite of the pharmaceutical laquinimod, was assessed in in primary human and rat endometrial epithelial cells (EECs) with and without co-exposure to endogenous hormones. In human EECs, estradiol and progesterone did not affect AHR gene expression, but in rat EECs, progesterone decreased Ahre xpression (1.4-fold). In accordance, AHR-mediated induction of Cyp1a1/1b1 expression by DELAQ and TCDD decreased in hormone-treated rat EECs. DELAQ was 22-fold more potent than TCDD in human EECs in inducing CYP1A1/1B1 gene expression, while DELAQ was approximately 16-33-fold less potent than TCDD in rat EECs. In human EECs, 10 nM DELAQ decreased estradiol-induced expression of growth-regulated estrogen receptor binding 1 (GREB1) by 1.8-fold. In rat EECs, both DELAQ and TCDD did not affect the expression of estradiol-induced genes. This study shows that AHR ligand DELAQ, but not TCDD, causes anti-estrogenic effects in primary human EECs. Furthermore, although AHR-mediated CYP1A1/1B1/Cyp1a1/1b1 induction by DELAQ and TCDD was stronger in rat EECs than human EECs, this did not result in apparent anti-estrogenic effects in the rat cells. This study shows that primary human and rat endometrial cells respond differently towards hormones and AHR ligands. This should be considered in human risk assessment based on rodent studies.
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Affiliation(s)
- A D van den Brand
- Institute for Risk Assessment Sciences, Utrecht University, Yalelaan 104, 3584 CM Utrecht, the Netherlands.
| | - E Rubinstein
- Teva Pharmaceutical Industries Ltd., Netanya, Israel
| | - P C de Jong
- St. Antonius Hospital, Internal Medicine, Nieuwegein, the Netherlands
| | - M van den Berg
- Institute for Risk Assessment Sciences, Utrecht University, Yalelaan 104, 3584 CM Utrecht, the Netherlands
| | - Mbm van Duursen
- Environmental Health & Toxicology, Vrije Universiteit, Amsterdam, the Netherlands
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Jalalzadeh H, Indrakusuma R, Koelemay MJW, Balm R, Van den Akker LH, Van den Akker PJ, Akkersdijk GJ, Akkersdijk GP, Akkersdijk WL, van Andringa de Kempenaer MG, Arts CH, Avontuur JA, Baal JG, Bakker OJ, Balm R, Barendregt WB, Bender MH, Bendermacher BL, van den Berg M, Berger P, Beuk RJ, Blankensteijn JD, Bleker RJ, Bockel JH, Bodegom ME, Bogt KE, Boll AP, Booster MH, Borger van der Burg BL, de Borst GJ, Bos-van Rossum WT, Bosma J, Botman JM, Bouwman LH, Breek JC, Brehm V, Brinckman MJ, van den Broek TH, Brom HL, de Bruijn MT, de Bruin JL, Brummel P, van Brussel JP, Buijk SE, Buimer MG, Burger DH, Buscher HC, den Butter G, Cancrinus E, Castenmiller PH, Cazander G, Coveliers HM, Cuypers PH, Daemen JH, Dawson I, Derom AF, Dijkema AR, Diks J, Dinkelman MK, Dirven M, Dolmans DE, van Doorn RC, van Dortmont LM, van der Eb MM, Eefting D, van Eijck GJ, Elshof JW, Elsman BH, van der Elst A, van Engeland MI, van Eps RG, Faber MJ, de Fijter WM, Fioole B, Fritschy WM, Geelkerken RH, van Gent WB, Glade GJ, Govaert B, Groenendijk RP, de Groot HG, van den Haak RF, de Haan EF, Hajer GF, Hamming JF, van Hattum ES, Hazenberg CE, Hedeman Joosten PP, Helleman JN, van der Hem LG, Hendriks JM, van Herwaarden JA, Heyligers JM, Hinnen JW, Hissink RJ, Ho GH, den Hoed PT, Hoedt MT, van Hoek F, Hoencamp R, Hoffmann WH, Hoksbergen AW, Hollander EJ, Huisman LC, Hulsebos RG, Huntjens KM, Idu MM, Jacobs MJ, van der Jagt MF, Jansbeken JR, Janssen RJ, Jiang HH, de Jong SC, Jongkind V, Kapma MR, Keller BP, Khodadade Jahrome A, Kievit JK, Klemm PL, Klinkert P, Knippenberg B, Koedam NA, Koelemay MJ, Kolkert JL, Koning GG, Koning OH, Krasznai AG, Krol RM, Kropman RH, Kruse RR, van der Laan L, van der Laan MJ, van Laanen JH, Lardenoye JH, Lawson JA, Legemate DA, Leijdekkers VJ, Lemson MS, Lensvelt MM, Lijkwan MA, Lind RC, van der Linden FT, Liqui Lung PF, Loos MJ, Loubert MC, Mahmoud DE, Manshanden CG, Mattens EC, Meerwaldt R, Mees BM, Metz R, Minnee RC, de Mol van Otterloo JC, Moll FL, Montauban van Swijndregt YC, Morak MJ, van de Mortel RH, Mulder W, Nagesser SK, Naves CC, Nederhoed JH, Nevenzel-Putters AM, de Nie AJ, Nieuwenhuis DH, Nieuwenhuizen J, van Nieuwenhuizen RC, Nio D, Oomen AP, Oranen BI, Oskam J, Palamba HW, Peppelenbosch AG, van Petersen AS, Peterson TF, Petri BJ, Pierie ME, Ploeg AJ, Pol RA, Ponfoort ED, Poyck PP, Prent A, Ten Raa S, Raymakers JT, Reichart M, Reichmann BL, Reijnen MM, Rijbroek A, van Rijn MJ, de Roo RA, Rouwet EV, Rupert CG, Saleem BR, van Sambeek MR, Samyn MG, van 't Sant HP, van Schaik J, van Schaik PM, Scharn DM, Scheltinga MR, Schepers A, Schlejen PM, Schlosser FJ, Schol FP, Schouten O, Schreinemacher MH, Schreve MA, Schurink GW, Sikkink CJ, Siroen MP, Te Slaa A, Smeets HJ, Smeets L, de Smet AA, de Smit P, Smit PC, Smits TM, Snoeijs MG, Sondakh AO, van der Steenhoven TJ, van Sterkenburg SM, Stigter DA, Stigter H, Strating RP, Stultiëns GN, Sybrandy JE, Teijink JA, Telgenkamp BJ, Testroote MJ, The RM, Thijsse WJ, Tielliu IF, van Tongeren RB, Toorop RJ, Tordoir JH, Tournoij E, Truijers M, Türkcan K, Tutein Nolthenius RP, Ünlü Ç, Vafi AA, Vahl AC, Veen EJ, Veger HT, Veldman MG, Verhagen HJ, Verhoeven BA, Vermeulen CF, Vermeulen EG, Vierhout BP, Visser MJ, van der Vliet JA, Vlijmen-van Keulen CJ, Voesten HG, Voorhoeve R, Vos AW, de Vos B, Vos GA, Vriens BH, Vriens PW, de Vries AC, de Vries JP, de Vries M, van der Waal C, Waasdorp EJ, Wallis de Vries BM, van Walraven LA, van Wanroij JL, Warlé MC, van Weel V, van Well AM, Welten GM, Welten RJ, Wever JJ, Wiersema AM, Wikkeling OR, Willaert WI, Wille J, Willems MC, Willigendael EM, Wisselink W, Witte ME, Wittens CH, Wolf-de Jonge IC, Yazar O, Zeebregts CJ, van Zeeland ML. Editor's Choice - Nationwide Analysis of Patients Undergoing Iliac Artery Aneurysm Repair in the Netherlands. Eur J Vasc Endovasc Surg 2020; 60:49-55. [PMID: 32331994 DOI: 10.1016/j.ejvs.2020.02.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 02/04/2020] [Accepted: 02/25/2020] [Indexed: 01/04/2023]
Abstract
OBJECTIVE The new 2019 guideline of the European Society for Vascular Surgery (ESVS) recommends consideration for elective iliac artery aneurysm (eIAA) repair when the iliac diameter exceeds 3.5 cm, as opposed to 3.0 cm previously. The current study assessed diameters at time of eIAA repair and ruptured IAA (rIAA) repair and compared clinical outcomes after open surgical repair (OSR) and endovascular aneurysm repair (EVAR). METHODS This retrospective observational study used the nationwide Dutch Surgical Aneurysm Audit (DSAA) registry that includes all patients who undergo aorto-iliac aneurysm repair in the Netherlands. All patients who underwent primary IAA repair between 1 January 2014 and 1 January 2018 were included. Diameters at time of eIAA and rIAA repair were compared in a descriptive fashion. The anatomical location of the IAA was not registered in the registry. Patient characteristics and outcomes of OSR and EVAR were compared with appropriate statistical tests. RESULTS The DSAA registry comprised 974 patients who underwent IAA repair. A total of 851 patients were included after exclusion of patients undergoing revision surgery and patients with missing essential variables. eIAA repair was carried out in 713 patients, rIAA repair in 102, and symptomatic IAA repair in 36. OSR was performed in 205, EVAR in 618, and hybrid repairs and conversions in 28. The median maximum IAA diameter at the time of eIAA and rIAA repair was 43 (IQR 38-50) mm and 68 (IQR 58-85) mm, respectively. Mortality was 1.3% (95% CI 0.7-2.4) after eIAA repair and 25.5% (95% CI 18.0-34.7) after rIAA repair. Mortality was not significantly different between the OSR and EVAR subgroups. Elective OSR was associated with significantly more complications than EVAR (intra-operative: 9.8% vs. 3.6%, post-operative: 34.0% vs. 13.8%, respectively). CONCLUSION In the Netherlands, most eIAA repairs are performed at diameters larger than recommended by the ESVS guideline. These findings appear to support the recent increase in the threshold diameter for eIAA repair.
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Affiliation(s)
- Hamid Jalalzadeh
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - Reza Indrakusuma
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - Mark J W Koelemay
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - Ron Balm
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands.
| | - L H Van den Akker
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - P J Van den Akker
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - G J Akkersdijk
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - G P Akkersdijk
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - W L Akkersdijk
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M G van Andringa de Kempenaer
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - C H Arts
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J A Avontuur
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J G Baal
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - O J Bakker
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R Balm
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - W B Barendregt
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M H Bender
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - B L Bendermacher
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M van den Berg
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - P Berger
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R J Beuk
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J D Blankensteijn
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R J Bleker
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J H Bockel
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M E Bodegom
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - K E Bogt
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - A P Boll
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M H Booster
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - B L Borger van der Burg
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - G J de Borst
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - W T Bos-van Rossum
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J Bosma
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J M Botman
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - L H Bouwman
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J C Breek
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - V Brehm
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M J Brinckman
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - T H van den Broek
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - H L Brom
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M T de Bruijn
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J L de Bruin
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - P Brummel
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J P van Brussel
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - S E Buijk
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M G Buimer
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - D H Burger
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - H C Buscher
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - G den Butter
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - E Cancrinus
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - P H Castenmiller
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - G Cazander
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - H M Coveliers
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - P H Cuypers
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J H Daemen
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - I Dawson
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - A F Derom
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - A R Dijkema
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J Diks
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M K Dinkelman
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M Dirven
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - D E Dolmans
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R C van Doorn
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - L M van Dortmont
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M M van der Eb
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - D Eefting
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - G J van Eijck
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J W Elshof
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - B H Elsman
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - A van der Elst
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M I van Engeland
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R G van Eps
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M J Faber
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - W M de Fijter
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - B Fioole
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - W M Fritschy
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R H Geelkerken
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - W B van Gent
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - G J Glade
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - B Govaert
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R P Groenendijk
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - H G de Groot
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R F van den Haak
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - E F de Haan
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - G F Hajer
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J F Hamming
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - E S van Hattum
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - C E Hazenberg
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - P P Hedeman Joosten
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J N Helleman
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - L G van der Hem
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J M Hendriks
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J A van Herwaarden
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J M Heyligers
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J W Hinnen
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R J Hissink
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - G H Ho
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - P T den Hoed
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M T Hoedt
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - F van Hoek
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R Hoencamp
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - W H Hoffmann
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - A W Hoksbergen
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - E J Hollander
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - L C Huisman
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R G Hulsebos
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - K M Huntjens
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M M Idu
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M J Jacobs
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M F van der Jagt
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J R Jansbeken
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R J Janssen
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - H H Jiang
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - S C de Jong
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - V Jongkind
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M R Kapma
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - B P Keller
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - A Khodadade Jahrome
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J K Kievit
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - P L Klemm
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - P Klinkert
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - B Knippenberg
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - N A Koedam
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M J Koelemay
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J L Kolkert
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - G G Koning
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - O H Koning
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - A G Krasznai
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R M Krol
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R H Kropman
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R R Kruse
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - L van der Laan
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M J van der Laan
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J H van Laanen
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J H Lardenoye
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J A Lawson
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - D A Legemate
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - V J Leijdekkers
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M S Lemson
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M M Lensvelt
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M A Lijkwan
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R C Lind
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - F T van der Linden
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - P F Liqui Lung
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M J Loos
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M C Loubert
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - D E Mahmoud
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - C G Manshanden
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - E C Mattens
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R Meerwaldt
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - B M Mees
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R Metz
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R C Minnee
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J C de Mol van Otterloo
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - F L Moll
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - Y C Montauban van Swijndregt
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M J Morak
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R H van de Mortel
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - W Mulder
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - S K Nagesser
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - C C Naves
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J H Nederhoed
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - A M Nevenzel-Putters
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - A J de Nie
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - D H Nieuwenhuis
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J Nieuwenhuizen
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R C van Nieuwenhuizen
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - D Nio
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - A P Oomen
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - B I Oranen
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J Oskam
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - H W Palamba
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - A G Peppelenbosch
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - A S van Petersen
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - T F Peterson
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - B J Petri
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M E Pierie
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - A J Ploeg
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R A Pol
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - E D Ponfoort
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - P P Poyck
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - A Prent
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - S Ten Raa
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J T Raymakers
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M Reichart
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - B L Reichmann
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M M Reijnen
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - A Rijbroek
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M J van Rijn
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R A de Roo
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - E V Rouwet
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - C G Rupert
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - B R Saleem
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M R van Sambeek
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M G Samyn
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - H P van 't Sant
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J van Schaik
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - P M van Schaik
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - D M Scharn
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M R Scheltinga
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - A Schepers
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - P M Schlejen
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - F J Schlosser
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - F P Schol
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - O Schouten
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M H Schreinemacher
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M A Schreve
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - G W Schurink
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - C J Sikkink
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M P Siroen
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - A Te Slaa
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - H J Smeets
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - L Smeets
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - A A de Smet
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - P de Smit
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - P C Smit
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - T M Smits
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M G Snoeijs
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - A O Sondakh
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - T J van der Steenhoven
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - S M van Sterkenburg
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - D A Stigter
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - H Stigter
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R P Strating
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - G N Stultiëns
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J E Sybrandy
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J A Teijink
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - B J Telgenkamp
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M J Testroote
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R M The
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - W J Thijsse
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - I F Tielliu
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R B van Tongeren
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R J Toorop
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J H Tordoir
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - E Tournoij
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M Truijers
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - K Türkcan
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R P Tutein Nolthenius
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - Ç Ünlü
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - A A Vafi
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - A C Vahl
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - E J Veen
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - H T Veger
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M G Veldman
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - H J Verhagen
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - B A Verhoeven
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - C F Vermeulen
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - E G Vermeulen
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - B P Vierhout
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M J Visser
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J A van der Vliet
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - C J Vlijmen-van Keulen
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - H G Voesten
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R Voorhoeve
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - A W Vos
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - B de Vos
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - G A Vos
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - B H Vriens
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - P W Vriens
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - A C de Vries
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J P de Vries
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M de Vries
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - C van der Waal
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - E J Waasdorp
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - B M Wallis de Vries
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - L A van Walraven
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J L van Wanroij
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M C Warlé
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - V van Weel
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - A M van Well
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - G M Welten
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - R J Welten
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J J Wever
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - A M Wiersema
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - O R Wikkeling
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - W I Willaert
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - J Wille
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M C Willems
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - E M Willigendael
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - W Wisselink
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M E Witte
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - C H Wittens
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - I C Wolf-de Jonge
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - O Yazar
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - C J Zeebregts
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - M L van Zeeland
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
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van den Berg M. [The e-cigarette: a toxicological box of Pandora]. Ned Tijdschr Geneeskd 2020; 164:D4890. [PMID: 32392011] [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: 06/11/2023]
Abstract
It is argued by the author that the addition of flavorings to e-cigarette devices presents a major uncertainty in the health risks of these nicotine delivery-systems. These flavorings have usually been tested only for oral uptake situations and not for e-cigarette devices in which unkown and possible hazardous combustion products can be formed. A similar uncertainty exist for the de novo formation of combustion products of humectants. Experimental studies have already indicated the possibility of adverse effects on the respiratory system. The now observed lung symptoms with e-cigarette users are there not unexpected from a toxicological point of view. The overall complexity of the mixture of combustion products clearly hampers an adequate toxicological risk assessment, which is further increased by the large variety of liquids and delivery devices on the market. The use if e-cigarette devices may very well be a toxicological box of Pandora.
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Affiliation(s)
- M van den Berg
- Universiteit Utrecht, faculteit Diergeneeskunde, Utrecht
- Contact: M. van den Berg
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van den Brand AD, Rubinstein E, de Jong PC, van den Berg M, van Duursen MBM. Primary endometrial 3D co-cultures: A comparison between human and rat endometrium. J Steroid Biochem Mol Biol 2019; 194:105458. [PMID: 31465845 DOI: 10.1016/j.jsbmb.2019.105458] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 08/18/2019] [Accepted: 08/25/2019] [Indexed: 12/21/2022]
Abstract
Human and rat reproductive systems differ significantly with respect to hormonal cyclicity and endometrial cell behavior. However, species-differences in endometrial cell responses upon hormonal stimulation and exposure to potentially toxic compounds are poorly characterized. In this study, human and rat endometrial hormonal responses were assessed in vitro using a 3D co-culture model of primary human and rat endometrial cells. The models were exposed to the aryl hydrocarbon receptor (AHR) ligands 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), laquinimod, and its AHR active metabolite DELAQ. In both the human and rat endometrial models, estrogen receptor and progesterone receptor gene expression was modulated by the hormonal treatments, comparable to the in vivo situation. AHR gene expression in the human endometrial model did not change when exposed to hormones. In contrast, AHR expression decreased 2-fold in the rat model when exposed to predominantly progesterone, which resulted in a 2.8-fold attenuation of gene expression induction of cytochrome P450 1A1 (CYP1A1) by TCDD. TCDD and DELAQ, but not laquinimod, concentration-dependently induced CYP1A1 gene expression in both human and rat endometrial models. Interestingly, the relative degree of DELAQ to induce CYP1A1 was higher than that of TCDD in the human model, while it was lower in the rat model. These data clearly show species-differences in response to hormones and AHR ligands between human and rat endometrial cells in vitro, which might greatly affect the applicability of the rat as translational model for human endometrial effects. This warrants further development of human relevant, endometrium-specific test methods for risk assessment purposes.
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Affiliation(s)
- A D van den Brand
- Institute for Risk Assessment Sciences, Utrecht University, Yalelaan 104, 3584 CM Utrecht, the Netherlands.
| | - E Rubinstein
- Teva Pharmaceutical Industries Ltd, Netanya, Israel
| | - P C de Jong
- St. Antonius Hospital, Nieuwegein, the Netherlands
| | - M van den Berg
- Institute for Risk Assessment Sciences, Utrecht University, Yalelaan 104, 3584 CM Utrecht, the Netherlands
| | - M B M van Duursen
- Institute for Risk Assessment Sciences, Utrecht University, Yalelaan 104, 3584 CM Utrecht, the Netherlands; Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
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van den Brand AD, Rubinstein E, van den Berg M, van Duursen MBM. GH3 and RC-4BC cell lines are not suitable as in vitro models to study prolactin modulation and AHR responsiveness in rat pituitary. Mol Cell Endocrinol 2019; 496:110520. [PMID: 31352040 DOI: 10.1016/j.mce.2019.110520] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 05/21/2019] [Accepted: 07/24/2019] [Indexed: 01/10/2023]
Abstract
Some environmental contaminants and pharmaceuticals increase the incidence of uterine tumors in toxicological studies with rats. These tumors can result from a hormonal imbalance due to rat-specific disrupted pituitary prolactin regulation, and are therefore of questionable relevance for humans. In this study we compared in vitro prolactin regulation in rat primary pituitary cells to that in pituitary cell lines, GH3 and RC-4BC. Moreover, we assessed the potential effects of aryl hydrocarbon receptor (AHR) activation on prolactin regulation by using two different AHR agonists, 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) and DELAQ, the N-deethylated minor metabolite of the pharmaceutical laquinimod. In rat primary pituitary cells, known prolactin stimulant thyrotropin-releasing hormone (TRH) marginally increased prolactin secretion (1.2-fold) and gene expression (1.3-fold). In contrast, synthetic dopamine receptor agonist quinpirole, a known inhibitor of prolactin release, significantly inhibited prolactin secretion (2.6-fold) and gene expression (3.6-fold). In GH3 cells, TRH strongly increased prolactin secretion (6.8-fold) and gene expression (30.8-fold), whereas quinpirole did not affect prolactin secretion nor gene expression. In RC-4BC cells, both TRH and quinpirole did not modulate prolactin secretion nor gene expression. Prolactin secretion and gene expression did not significantly change upon exposure to TCDD or DELAQ. However, DELAQ, but not TCDD, attenuated quinpirole-inhibited prolactin gene expression by 51% in primary pituitary cells. This study shows that pituitary prolactin regulation in rat primary pituitary cells in vitro is distinctly different from rat pituitary cell lines GH3 and RC-4BC. Therefore, effects on pituitary prolactin regulation in vitro should best be performed using rat primary pituitary cells. Additionally, AHR ligands may interact with rat pituitary prolactin regulation, but this appears to depend on the ligand and constitutive prolactin secretion. However, interpretation of the in vitro results with respect to occurrence of uterine tumors in rats should take the complex regulation of prolactin release in the pituitary into account as well as the in vivo hypothalamus-pituitary-gonadal (HPG) axis and its feedback loops.
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Affiliation(s)
- A D van den Brand
- Institute for Risk Assessment Sciences, Utrecht University, Yalelaan 104, 3584 CM, the Netherlands.
| | - E Rubinstein
- TEVA Pharmaceutical Industries Ltd, Netanya, Israel
| | - M van den Berg
- Institute for Risk Assessment Sciences, Utrecht University, Yalelaan 104, 3584 CM, the Netherlands
| | - M B M van Duursen
- Institute for Risk Assessment Sciences, Utrecht University, Yalelaan 104, 3584 CM, the Netherlands; Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
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de Winter J, Bouman K, van den Berg M, Strohm J, Jongbloed J, van der Roest W, van Wijngaarden J, Timmermans J, Kamsteeg E, Van Engelen B, Van der Pijl R, Granzier H, van Spaendonck-Zwarts K, Voermans N, Ottenheijm C. O.13Nemaline myopathy patients with mutations in KBTBD13 display a cardiac phenotype. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Ijmker-Hemink V, Heerschop S, Wanten G, van den Berg M. MON-PO531: Evaluation of the Applicability and Feasibility of GLIM Criteria to Diagnose Malnutrition in Clinical Practice. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32364-7] [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: 10/26/2022]
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van den Berg M, Baysal Ö, Nelen WLDM, Braat DDM, Beerendonk CCM, Hermens RPMG. Professionals’ barriers in female oncofertility care and strategies for improvement. Hum Reprod 2019; 34:1074-1082. [DOI: 10.1093/humrep/dez062] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 04/12/2019] [Indexed: 12/12/2022] Open
Affiliation(s)
- M van den Berg
- Department of Obstetrics and Gynaecology, Radboud university medical center, Nijmegen, the Netherlands
| | - Ö Baysal
- Department of Obstetrics and Gynaecology, Radboud university medical center, Nijmegen, the Netherlands
| | - W L D M Nelen
- Department of Obstetrics and Gynaecology, Radboud university medical center, Nijmegen, the Netherlands
| | - D D M Braat
- Department of Obstetrics and Gynaecology, Radboud university medical center, Nijmegen, the Netherlands
| | - C C M Beerendonk
- Department of Obstetrics and Gynaecology, Radboud university medical center, Nijmegen, the Netherlands
| | - R P M G Hermens
- Department of IQ Healthcare, Radboud university medical center, Nijmegen, the Netherlands
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Abstract
Introduction: "Aerotoxic syndrome" is a debated entity. Regulatory authorities consider long-term health effects to be an unlikely consequence of exposure to contaminated air because several air quality monitoring studies report low concentrations of toxic chemicals in cabin air. We describe two pilots and one flight attendant, who developed ill health during their flying career which improved after cessation of flying.Case details: The most frequently reported symptoms were headache, balance problems, fatigue, gastro-intestinal complaints and cognitive impairment. One of these patients had reduced levels of butyrylcholinesterase after a flight suggesting exposure to organophosphate compounds had occurred. All three were found to have elevated neuronal and glial auto-antibodies, biomarkers of central nervous system injury, and all three had genetic polymorphisms of paraoxonase (PON-1) and two of cytochrome P450, leading to a reduced ability to metabolize organophosphate compound (OPs).Discussion: A similar constellation of symptoms has been described in other studies of aircrew, although objective evidence of exposure is lacking in most of these studies. Reduced levels of butyrylcholinesterases in one of our cases is suggestive of causation and elevated neuronal and glial autoantibodies provide objective evidence of damage to the central nervous system. We consider further research is warranted.
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Affiliation(s)
- G Hageman
- Medical Spectrum Twente, Hospital Enschede, Enschede, the Netherlands
| | - T M Pal
- Occupational Health Physician n.p, Lelystad, the Netherlands
| | - J Nihom
- Medical Spectrum Twente, Hospital Enschede, Enschede, the Netherlands
| | - S J MackenzieRoss
- Research Department of Clinical, Educational and Health Psychology, University College London, London, UK
| | - M van den Berg
- Institute of Risk Assessment Sciences (IRAS), Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
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Engwerda E, van den Berg M, Blans M, Bech A, de Boer H. Efficacy and safety of a phosphate replacement strategy for severe hypophosphatemia in the ICU. Neth J Med 2018; 76:437-441. [PMID: 30569887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
BACKGROUND Experience with individualized phosphate replacement is limited in patients with severe hypophosphatemia. This study compares the efficacy and safety of an individualized regimen of serum phosphate < 0.4 mmol/l treatment in ICU patients to patients with moderate hypophosphatemia (0.4-0.6 mmol/l). METHODS This retrospective cohort study included 36 patients with severe and 35 patients with moderate hypophosphatemia. Supplementation dose was calculated according to the equation: phosphate dose (in mmol) = 0.5 x body weight x (1.25 - [serum phosphate]). Sodium-potassium-phosphate was infused at a rate of 10 mmol/hour. Blood samples were taken at baseline and the next morning at 06.00 hrs. RESULTS Serum phosphate rose to a level > 0.40 mmol/l in all patients with severe hypophosphatemia. Serum phosphate increased to > 0.60 mmol/l in 56% of patients with severe hypophosphatemia and in 86% of patients with moderate hypophosphatemia (p = 0.01). Mild hyperphosphatemia was observed in one patient only (1.53 mmol/l), hyperkalemia was observed in three patients (all three had severe hypophosphatemia, average potassium after supplementation was 5.2 ±; 0.2 mmol/l) and serum calcium levels remained unchanged in both groups. CONCLUSION Individualized phosphate replacement was effective and safe for both moderate and severe hypophosphatemia, but was more accurate in moderate hypophosphatemia.
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Affiliation(s)
- E Engwerda
- Department of Internal Medicine, Rijnstate Hospital, Arnhem, the Netherlands
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19
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Lijftogt N, Karthaus EG, Vahl A, van Zwet EW, van der Willik EM, Tollenaar RA, Hamming JF, Wouters MW, Van den Akker L, Van den Akker P, Akkersdijk G, Akkersdijk G, Akkersdijk W, van Andringa de Kempenaer M, Arts C, Avontuur J, Baal J, Bakker O, Balm R, Barendregt W, Bender M, Bendermacher B, van den Berg M, Berger P, Beuk R, Blankensteijn J, Bleker R, Bockel J, Bodegom M, Bogt K, Boll A, Booster M, Borger van der Burg B, de Borst G, Bos-van Rossum W, Bosma J, Botman J, Bouwman L, Breek J, Brehm V, Brinckman M, van den Broek T, Brom H, de Bruijn M, de Bruin J, Brummel P, van Brussel J, Buijk S, Buimer M, Burger D, Buscher H, den Butter G, Cancrinus E, Castenmiller P, Cazander G, Coveliers H, Cuypers P, Daemen J, Dawson I, Derom A, Dijkema A, Diks J, Dinkelman M, Dirven M, Dolmans D, van Doorn R, van Dortmont L, van der Eb M, Eefting D, van Eijck G, Elshof J, Elsman B, van der Elst A, van Engeland M, van Eps R, Faber M, de Fijter W, Fioole B, Fritschy W, Geelkerken R, van Gent W, Glade G, Govaert B, Groenendijk R, de Groot H, van den Haak R, de Haan E, Hajer G, Hamming J, van Hattum E, Hazenberg C, Hedeman Joosten P, Helleman J, van der Hem L, Hendriks J, van Herwaarden J, Heyligers J, Hinnen J, Hissink R, Ho G, den Hoed P, Hoedt M, van Hoek F, Hoencamp R, Hoffmann W, Hoksbergen A, Hollander E, Huisman L, Hulsebos R, Huntjens K, Idu M, Jacobs M, van der Jagt M, Jansbeken J, Janssen R, Jiang H, de Jong S, Jongkind V, Kapma M, Keller B, Khodadade Jahrome A, Kievit J, Klemm P, Klinkert P, Knippenberg B, Koedam N, Koelemaij M, Kolkert J, Koning G, Koning O, Krasznai A, Krol R, Kropman R, Kruse R, van der Laan L, van der Laan M, van Laanen J, Lardenoye J, Lawson J, Legemate D, Leijdekkers V, Lemson M, Lensvelt M, Lijkwan M, Lind R, van der Linden F, Liqui Lung P, Loos M, Loubert M, Mahmoud D, Manshanden C, Mattens E, Meerwaldt R, Mees B, Metz R, Minnee R, de Mol van Otterloo J, Moll F, Montauban van Swijndregt Y, Morak M, van de Mortel R, Mulder W, Nagesser S, Naves C, Nederhoed J, Nevenzel-Putters A, de Nie A, Nieuwenhuis D, Nieuwenhuizen J, van Nieuwenhuizen R, Nio D, Oomen A, Oranen B, Oskam J, Palamba H, Peppelenbosch A, van Petersen A, Peterson T, Petri B, Pierie M, Ploeg A, Pol R, Ponfoort E, Poyck P, Prent A, ten Raa S, Raymakers J, Reichart M, Reichmann B, Reijnen M, Rijbroek A, van Rijn M, de Roo R, Rouwet E, Rupert C, Saleem B, van Sambeek M, Samyn M, van ’t Sant H, van Schaik J, van Schaik P, Scharn D, Scheltinga M, Schepers A, Schlejen P, Schlosser F, Schol F, Schouten O, Schreinemacher M, Schreve M, Schurink G, Sikkink C, Siroen M, te Slaa A, Smeets H, Smeets L, de Smet A, de Smit P, Smit P, Smits T, Snoeijs M, Sondakh A, van der Steenhoven T, van Sterkenburg S, Stigter D, Stigter H, Strating R, Stultiëns G, Sybrandy J, Teijink J, Telgenkamp B, Testroote M, The R, Thijsse W, Tielliu I, van Tongeren R, Toorop R, Tordoir J, Tournoij E, Truijers M, Türkcan K, Tutein Nolthenius R, Ünlü Ç, Vafi A, Vahl A, Veen E, Veger H, Veldman M, Verhagen H, Verhoeven B, Vermeulen C, Vermeulen E, Vierhout B, Visser M, van der Vliet J, Vlijmen-van Keulen C, Voesten H, Voorhoeve R, Vos A, de Vos B, Vos G, Vriens B, Vriens P, de Vries A, de Vries J, de Vries M, van der Waal C, Waasdorp E, Wallis de Vries B, van Walraven L, van Wanroij J, Warlé M, van Weel V, van Well A, Welten G, Welten R, Wever J, Wiersema A, Wikkeling O, Willaert W, Wille J, Willems M, Willigendael E, Wisselink W, Witte M, Wittens C, Wolf-de Jonge I, Yazar O, Zeebregts C, van Zeeland M, Van den Akker L, Van den Akker P, Akkersdijk G, Akkersdijk G, Akkersdijk W, van Andringa de Kempenaer M, Arts C, Avontuur J, Baal J, Bakker O, Balm R, Barendregt W, Bender M, Bendermacher B, van den Berg M, Berger P, Beuk R, Blankensteijn J, Bleker R, Bockel J, Bodegom M, Bogt K, Boll A, Booster M, Borger van der Burg B, de Borst G, Bos-van Rossum W, Bosma J, Botman J, Bouwman L, Breek J, Brehm V, Brinckman M, van den Broek T, Brom H, de Bruijn M, de Bruin J, Brummel P, van Brussel J, Buijk S, Buimer M, Burger D, Buscher H, den Butter G, Cancrinus E, Castenmiller P, Cazander G, Coveliers H, Cuypers P, Daemen J, Dawson I, Derom A, Dijkema A, Diks J, Dinkelman M, Dirven M, Dolmans D, van Doorn R, van Dortmont L, van der Eb M, Eefting D, van Eijck G, Elshof J, Elsman B, van der Elst A, van Engeland M, van Eps R, Faber M, de Fijter W, Fioole B, Fritschy W, Geelkerken R, van Gent W, Glade G, Govaert B, Groenendijk R, de Groot H, van den Haak R, de Haan E, Hajer G, Hamming J, van Hattum E, Hazenberg C, Hedeman Joosten P, Helleman J, van der Hem L, Hendriks J, van Herwaarden J, Heyligers J, Hinnen J, Hissink R, Ho G, den Hoed P, Hoedt M, van Hoek F, Hoencamp R, Hoffmann W, Hoksbergen A, Hollander E, Huisman L, Hulsebos R, Huntjens K, Idu M, Jacobs M, van der Jagt M, Jansbeken J, Janssen R, Jiang H, de Jong S, Jongkind V, Kapma M, Keller B, Khodadade Jahrome A, Kievit J, Klemm P, Klinkert P, Knippenberg B, Koedam N, Koelemaij M, Kolkert J, Koning G, Koning O, Krasznai A, Krol R, Kropman R, Kruse R, van der Laan L, van der Laan M, van Laanen J, Lardenoye J, Lawson J, Legemate D, Leijdekkers V, Lemson M, Lensvelt M, Lijkwan M, Lind R, van der Linden F, Liqui Lung P, Loos M, Loubert M, Mahmoud D, Manshanden C, Mattens E, Meerwaldt R, Mees B, Metz R, Minnee R, de Mol van Otterloo J, Moll F, Montauban van Swijndregt Y, Morak M, van de Mortel R, Mulder W, Nagesser S, Naves C, Nederhoed J, Nevenzel-Putters A, de Nie A, Nieuwenhuis D, Nieuwenhuizen J, van Nieuwenhuizen R, Nio D, Oomen A, Oranen B, Oskam J, Palamba H, Peppelenbosch A, van Petersen A, Peterson T, Petri B, Pierie M, Ploeg A, Pol R, Ponfoort E, Poyck P, Prent A, ten Raa S, Raymakers J, Reichart M, Reichmann B, Reijnen M, Rijbroek A, van Rijn M, de Roo R, Rouwet E, Rupert C, Saleem B, van Sambeek M, Samyn M, van ’t Sant H, van Schaik J, van Schaik P, Scharn D, Scheltinga M, Schepers A, Schlejen P, Schlosser F, Schol F, Schouten O, Schreinemacher M, Schreve M, Schurink G, Sikkink C, Siroen M, te Slaa A, Smeets H, Smeets L, de Smet A, de Smit P, Smit P, Smits T, Snoeijs M, Sondakh A, van der Steenhoven T, van Sterkenburg S, Stigter D, Stigter H, Strating R, Stultiëns G, Sybrandy J, Teijink J, Telgenkamp B, Testroote M, The R, Thijsse W, Tielliu I, van Tongeren R, Toorop R, Tordoir J, Tournoij E, Truijers M, Türkcan K, Tutein Nolthenius R, Ünlü Ç, Vafi A, Vahl A, Veen E, Veger H, Veldman M, Verhagen H, Verhoeven B, Vermeulen C, Vermeulen E, Vierhout B, Visser M, van der Vliet J, Vlijmen-van Keulen C, Voesten H, Voorhoeve R, Vos A, de Vos B, Vos G, Vriens B, Vriens P, de Vries A, de Vries J, de Vries M, van der Waal C, Waasdorp E, Wallis de Vries B, van Walraven L, van Wanroij J, Warlé M, van Weel V, van Well A, Welten G, Welten R, Wever J, Wiersema A, Wikkeling O, Willaert W, Wille J, Willems M, Willigendael E, Wisselink W, Witte M, Wittens C, Wolf-de Jonge I, Yazar O, Zeebregts C, van Zeeland M. Failure to Rescue – a Closer Look at Mortality Rates Has No Added Value for Hospital Comparisons but Is Useful for Team Quality Assessment in Abdominal Aortic Aneurysm Surgery in The Netherlands. Eur J Vasc Endovasc Surg 2018; 56:652-661. [DOI: 10.1016/j.ejvs.2018.06.062] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Accepted: 06/24/2018] [Indexed: 01/14/2023]
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van der Velde M, Baruth B, Bussay A, Ceglar A, Garcia Condado S, Karetsos S, Lecerf R, Lopez R, Maiorano A, Nisini L, Seguini L, van den Berg M. In-season performance of European Union wheat forecasts during extreme impacts. Sci Rep 2018; 8:15420. [PMID: 30337571 PMCID: PMC6194012 DOI: 10.1038/s41598-018-33688-1] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 10/04/2018] [Indexed: 11/09/2022] Open
Abstract
Here we assess the quality and in-season development of European wheat (Triticum spp.) yield forecasts during low, medium, and high-yielding years. 440 forecasts were evaluated for 75 wheat forecast years from 1993-2013 for 25 European Union (EU) Member States. By July, years with median yields were accurately forecast with errors below ~2%. Yield forecasts in years with low yields were overestimated by ~10%, while yield forecasts in high-yielding years were underestimated by ~8%. Four-fifths of the lowest yields had a drought or hot driver, a third a wet driver, while a quarter had both. Forecast accuracy of high-yielding years improved gradually during the season, and drought-driven yield reductions were anticipated with lead times of ~2 months. Single, contrasting successive in-season, as well as spatially distant dry and wet extreme synoptic weather systems affected multiple-countries in 2003, '06, '07, '11 and 12', leading to wheat losses up to 8.1 Mt (>40% of total EU loss). In these years, June forecasts (~ 1-month lead-time) underestimated these impacts by 10.4 to 78.4%. To cope with increasingly unprecedented impacts, near-real-time information fusion needs to underpin operational crop yield forecasting to benefit from improved crop modelling, more detailed and frequent earth observations, and faster computation.
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Affiliation(s)
- M van der Velde
- European Commission, Joint Research Centre, Via E. Fermi 2749, 21027, Ispra, Italy.
| | - B Baruth
- European Commission, Joint Research Centre, Via E. Fermi 2749, 21027, Ispra, Italy
| | - A Bussay
- European Commission, Joint Research Centre, Via E. Fermi 2749, 21027, Ispra, Italy
| | - A Ceglar
- European Commission, Joint Research Centre, Via E. Fermi 2749, 21027, Ispra, Italy
| | - S Garcia Condado
- European Commission, Joint Research Centre, Via E. Fermi 2749, 21027, Ispra, Italy
| | - S Karetsos
- European Commission, Joint Research Centre, Via E. Fermi 2749, 21027, Ispra, Italy
| | - R Lecerf
- European Commission, Joint Research Centre, Via E. Fermi 2749, 21027, Ispra, Italy
| | - R Lopez
- European Commission, Joint Research Centre, Via E. Fermi 2749, 21027, Ispra, Italy
| | - A Maiorano
- European Commission, Joint Research Centre, Via E. Fermi 2749, 21027, Ispra, Italy
| | - L Nisini
- European Commission, Joint Research Centre, Via E. Fermi 2749, 21027, Ispra, Italy
| | - L Seguini
- European Commission, Joint Research Centre, Via E. Fermi 2749, 21027, Ispra, Italy
| | - M van den Berg
- European Commission, Joint Research Centre, Via E. Fermi 2749, 21027, Ispra, Italy
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Ijmker-Hemink V, Dijxhoorn D, Wanten G, van den Berg M. Increased oral protein intake at day one during hospitalization is associated with decreased complication risk and hospital length of stay. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1874] [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: 11/25/2022]
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Dijxhoorn D, IJmker-Hemink V, Wanten G, van den Berg M. High frequency food service improves protein intake at mealtimes. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1591] [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]
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van den Berg M, Killington M, Morris C, Maeder A, Crotty M. A virtual health coach application to provide psychosocial support post-stroke: Feasible or not? Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.211] [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]
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Sherrington C, Hassett L, van den Berg M, Lindley R, Crotty M, McCluskey A, van der Ploeg H, Smith S, Schurr K. The effectiveness of affordable technology in rehabilitation to improve mobility and physical activity: Amount (activity and mobility using technology) rehabilitation trial. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.184] [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]
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van den Berg M. Amount (activity and mobility using technology) rehabilitation trial: Technologies used and participant perceptions in the inpatient setting. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.818] [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]
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Morris C, Barr C, van den Berg M, George S, Crotty M. Clinician perspectives of an avatar-directed scheduling and memory aid. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.1203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Thompson KR, Clarkson L, Riley CB, van den Berg M. Horse-keeping practices in Australia: findings from a national online survey of horse owners. Aust Vet J 2018; 95:437-443. [PMID: 29076216 DOI: 10.1111/avj.12639] [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: 05/28/2015] [Revised: 12/12/2016] [Accepted: 02/13/2017] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To gain an understanding of general horse-keeping practices in Australia, including shelter, social contact, exercise, watering and supplementary feeding. METHODS An online survey was conducted with 505 owners in relation to one 'representative' horse in their care. RESULTS The majority (83%) of horses were managed at pasture. Approximately one-quarter of those horses were housed alone (26%) or with one companion animal (27%). If horses were confined to a stable or small yard, the most recorded means of exercise was riding (65%) at a daily frequency (60%). Over half of the horse owners provided water in a trough or drinker with an automatic refill system (58%) and most horse owners supplied hay to their horses (82%), most commonly in combination with grazing. Areas of potential concern included one-quarter of stabled horses being prevented from unmediated social and physical contact with conspecifics and one-fifth of stabled horses being exercised less than daily. CONCLUSION The horse-keeping profile in this study should be considered in the public communication of guidelines as well as interactions between veterinarians and clients.
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Affiliation(s)
- K R Thompson
- Central Queensland University, Appleton Institute for Behavioural Science, Wayville, South Australia, Australia
| | - L Clarkson
- Central Queensland University, Appleton Institute for Behavioural Science, Wayville, South Australia, Australia
| | - C B Riley
- Institute of Veterinary, Animal and Biomedical Sciences Massey University, Palmerston North, New Zealand
| | - M van den Berg
- School of Environmental and Rural Science, University of New England, Armidale, New South Wales, Australia.,MB Equine Services, Armidale, New South Wales, Australia
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van den Berg M, Giagos V, Lee C, Brown W, Cawdell-Smith A, Hinch G. The influence of odour, taste and nutrients on feeding behaviour and food preferences in horses. Appl Anim Behav Sci 2016. [DOI: 10.1016/j.applanim.2016.08.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [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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van den Berg M, Giagos V, Lee C, Brown W, Hinch G. Acceptance of novel food by horses: The influence of food cues and nutrient composition. Appl Anim Behav Sci 2016. [DOI: 10.1016/j.applanim.2016.07.005] [Citation(s) in RCA: 17] [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] [Indexed: 11/25/2022]
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Newman MA, Dawes H, van den Berg M, Wade DT, Burridge J, Izadi H. Can aerobic treadmill training reduce the effort of walking and fatigue in people with multiple sclerosis: a pilot study. Mult Scler 2016; 13:113-9. [PMID: 17294619 DOI: 10.1177/1352458506071169] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [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: 11/16/2022]
Abstract
Impaired mobility in multiple sclerosis (MS) is associated with high-energy costs and effort when walking, gait abnormalities, poor endurance and fatigue. This repeated measures trial with blinded assessments investigated the effect of treadmill walking at an aerobic training intensity in 16 adults with MS. The intervention consisted of 12 sessions of up to 30 minutes treadmill training (TT), at 55–85% of age-predicted maximum heart rate. The primary outcome measure was walking effort, measured by oxygen consumption (mL/kg per metre), during treadmill walking at comfortable walking speed (CWS). Associated changes in gait parameters using the ‘Gait-Rite’ mat, 10-m time and 2-minute distance, and Fatigue Severity Scale were examined. Following training, oxygen consumption decreased at rest (P = 0.008), CWS increased (P = 0.002), and 10-m times (P = 0.032) and walking endurance (P = 0.020) increased. At increased CWS, oxygen consumption decreased (P = 0.020), with a decreased time spent in stance in the weaker leg (P = 0.034), and a greater stride distance with the stronger leg (P = 0.044). Reported fatigue levels remained the same. Aerobic TT presents the opportunity to alter a motor skill and reduce the effort of walking, whilst addressing cardiovascular de-conditioning, thereby, potentially reducing effort and fatigue for some people with MS.
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Affiliation(s)
- M A Newman
- Physiotherapy Research Unit, NOC NHS Trust, Oxford OX3 7LD, UK
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de Kruif A, op den Kelder-Verstraten I, Derks M, van den Berg M, de Vries Y, Kamps L, Winkels R, de Boer M, Visser M, Kampman E, Westerman M. 1960 The perceptions of women with breast cancer during treatment with chemotherapy on changes in weight; a mixed methods approach. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30908-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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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Hong SH, Bang EN, Lim ST, Lee JY, Yang SJ, Litnovsky A, Hellwig M, Matveev D, Komm M, van den Berg M, Lho T, Park CR, Kim GH. Preliminary test results on tungsten tile with castellation structures in KSTAR. Fusion Engineering and Design 2014. [DOI: 10.1016/j.fusengdes.2014.01.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Pieters R, Schulz V, Bol Schoenmakers M, van Duursen M, van den Berg M, Smit J. Activation of the AhR pathway prevents food allergy in mice. PharmaNutrition 2014. [DOI: 10.1016/j.phanu.2013.11.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Overbeek A, van den Berg M, Louwé L, Wendel E, ter Kuile M, Kaspers G, Stiggelbout A, van Dulmen-Den Broeder E, Hilders C. Practice, attitude and knowledge of Dutch paediatric oncologists regarding female fertility. Neth J Med 2014; 72:264-270. [PMID: 24930460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
BACKGROUND Chemotherapy and radiotherapy for childhood cancer can result in a decreased reproductive function. It is therefore important that paediatric oncologists discuss the possible impact of treatment on female fertility and available fertility preservation options with their patients. However, it is unknown what Dutch paediatric oncologists know about of the effect of cancer treatment on female fertility, whether or not they address this issue in clinical practice, what their attitudes are towards addressing fertility after cancer treatment and fertility preservation options, and to what extent they require additional information resources. METHODS In this nationwide quantitative cross-sectional study a survey was sent to all registered paediatric oncologists in the Netherlands (n=64). RESULTS Thirty-seven paediatric oncologists participated (participation rate 58%). Fertility issues were discussed with patients and/or parents by 97%. Of the paediatric oncologists, 54-76% were aware of possibilities for fertility preservation; however only <25% reported a moderate or high confidence in their knowledge of these techniques. Paediatric oncologists stated that they had little resources to counsel their patients and 92% found educational resources not completely sufficient. CONCLUSION Paediatric oncologists are well aware of the effect that cancer treatment may have on female fertility and their responsibility to counsel their patients and/or the parents on this issue. They do not (yet) possess the knowledge to sufficiently counsel these patients and, if needed, do not frequently refer them to a fertility specialist.
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Affiliation(s)
- A Overbeek
- Department of Paediatrics, VU Medical Center, Amsterdam, the Netherlands
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Louwers YV, Roest-Schalken ME, Kleefstra N, Roeters van Lennep J, van den Berg M, Fauser BCJM, Bilo HJG, Sijbrands EJG, Laven JSE. Excess mortality in mothers of patients with polycystic ovary syndrome. Hum Reprod 2014; 29:1780-6. [DOI: 10.1093/humrep/deu107] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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Bakker N, Schieven L, Bruins R, van den Berg M, Hissink R. Compression Stockings after Endovenous Laser Ablation of the Great Saphenous Vein: A Prospective Randomized Controlled Trial. J Vasc Surg 2013. [DOI: 10.1016/j.jvs.2013.09.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Bakker NA, Schieven LW, Bruins RMG, van den Berg M, Hissink RJ. Compression stockings after endovenous laser ablation of the great saphenous vein: a prospective randomized controlled trial. Eur J Vasc Endovasc Surg 2013; 46:588-92. [PMID: 24012465 DOI: 10.1016/j.ejvs.2013.08.001] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [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: 05/24/2013] [Accepted: 08/07/2013] [Indexed: 11/28/2022]
Abstract
OBJECTIVES To determine if the duration of wearing compression stockings after endovenous laser ablation (EVLA) of the great saphenous vein (GSV) has influence on pain and quality of life. METHODS This was a prospective randomized controlled trial. Between December 2006 and February 2008, 109 consecutive patients with EVLA of the GSV were analyzed. Deep vein insufficiency, ulceration, more than one insufficient vein in one leg, and use of anticoagulants were exclusion criteria. Group A used compression stocking for 48 hours after therapy, group B for 7 days. Pain (visual analogue scale [VAS]) and quality of life (SF-36) were analyzed 48 hours, 1 week, and 6 weeks after therapy. Three months after treatment, duplex ultrasound imaging was performed to assess occlusion rates. RESULTS Both groups (group A, n = 37; group B, n = 32) where comparable at baseline. After 1 week, there was a significant difference in pain (VAS score 3.7 [± 2.1] vs. 2.0 [± 1.1], p ≤ .001), and physical dysfunction (group A, 85.1 [± 11.2] vs. group B, 95.7 [± 10.1]; p < .001) as well as vitality (group A, 75 [± 13.0] vs. group B, 83.7 [± 13.4]; p = .03), all in favor of group B, which disappeared after 6 weeks. After 6 weeks, no significant differences in all endpoints were present. Duplex ultrasound imaging revealed complete GSV occlusion in all patients, while no cases of deep venous thrombosis had developed. CONCLUSIONS Prescribing compression stockings for longer than 2 days after endovenous GSV ablation (without simultaneous phlebectomies) leads to reduced pain and improved physical function during the first week after treatment.
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Affiliation(s)
- N A Bakker
- Department of Neurosurgery, University Medical Center Groningen, P.O. Box 30.001, 9700 RB Groningen, The Netherlands
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Schulz V, van Roest M, Bol-Schoenmakers M, van Duursen M, van den Berg M, Pieters R, Smit J. Aryl hydrocarbon receptor activation affects the dendritic cell phenotype and function during allergic sensitization. Immunobiology 2013; 218:1055-62. [DOI: 10.1016/j.imbio.2013.01.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2012] [Revised: 12/13/2012] [Accepted: 01/23/2013] [Indexed: 12/20/2022]
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Solak KA, Wijnolts FMJ, Pralong FP, Blaauboer BJ, van den Berg M, Westerink RH, van Duursen MBM. In vitro neuroendocrine effects of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) in the AhR-expressing hypothalamic rat GnV-3 cell line. Toxicology 2013; 311:124-34. [PMID: 23871856 DOI: 10.1016/j.tox.2013.07.006] [Citation(s) in RCA: 5] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Revised: 06/27/2013] [Accepted: 07/09/2013] [Indexed: 01/07/2023]
Abstract
The aryl hydrocarbon receptor (AhR) is involved in a wide variety of biological and toxicological responses, including neuroendocrine signaling. Due to the complexity of neuroendocrine pathways in e.g. the hypothalamus and pituitary, there are limited in vitro models available despite the strong demand for such systems to study and predict neuroendocrine effects of chemicals. In this study, the applicability of the AhR-expressing rat hypothalamic GnV-3 cell line was investigated as a novel model to screen for neuroendocrine effects of AhR ligands using 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) as reference compound. The qRT-PCR analyses demonstrated the presence of several sets of neurotransmitter receptors in the GnV-3 cells. TCDD (10nM) altered neurotransmitter signaling by up-regulation of glutamate (Grik2), gamma-amino butyric acid (Gabra2) and serotonin (Ht2C) receptor mRNA levels. However, no significant changes in basal and serotonin-evoked intracellular Ca(2+) concentration ([Ca(2+)]i) or serotonin release were observed. On the other hand, TCDD de-regulated period circadian protein homolog 1 (Per1) and gonadotropin releasing hormone (Gnrh) mRNA levels within a 24-h time period. Both Per1 and Gnrh genes displayed a similar mRNA expression pattern in GnV-3 cells. Moreover, the involvement of AhR in TCDD-induced alteration of Neuropeptide Y (Npy) gene expression was found and confirmed by using siRNA targeted against Ahr in GnV-3 cells. Overall, the combined results demonstrate that GnV-3 cells may be a suitable model to predict some mechanisms of action and effects of AhR ligands in the hypothalamus.
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Affiliation(s)
- K A Solak
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands.
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Hong SH, Yu Y, Kim KP, Bak JG, Park HJ, Oh YS, Chung J, Nam YU, Bang EN, Kim KR, Litnovsky A, Hellwig M, Matveev D, Komm M, van den Berg M, Kim WC, Kim HK, Rho TH, Chu Y, Oh YK, Yang HL, Park KR, Chung KS. Plasma-Surface Interaction Activities in KSTAR. Fusion Science and Technology 2013. [DOI: 10.13182/fst13-a16879] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S.-H. Hong
- National Fusion Research Institute, 169-148 Gwahangno, Yusung-Gu, Daejeon, 305-333, Korea
- Department of electrical engineering, HanYang University, Seoul, Korea
- Department of Nuclear Fusion and Plasma Science, University of Science and Technology, 169-148 Gwahangno, Yusung-Gu, Daejeon, 305-333, Korea
| | - Y. Yu
- National Fusion Research Institute, 169-148 Gwahangno, Yusung-Gu, Daejeon, 305-333, Korea
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, 230031, China
- Korea Atomic Energy Research Institute, 1045 Daeduk-Daero, Yuseong-gu, Daejeon, Korea
- Japan Atomic Energy Agency, 801 Mukouyama, Naka, Ibaraki-ken, 311-0193, Japan
| | - K.-P. Kim
- National Fusion Research Institute, 169-148 Gwahangno, Yusung-Gu, Daejeon, 305-333, Korea
| | - J. G. Bak
- National Fusion Research Institute, 169-148 Gwahangno, Yusung-Gu, Daejeon, 305-333, Korea
| | - H.-J. Park
- National Fusion Research Institute, 169-148 Gwahangno, Yusung-Gu, Daejeon, 305-333, Korea
| | - Y.-S. Oh
- Department of electrical engineering, HanYang University, Seoul, Korea
| | - J. Chung
- National Fusion Research Institute, 169-148 Gwahangno, Yusung-Gu, Daejeon, 305-333, Korea
| | - Y.-U. Nam
- National Fusion Research Institute, 169-148 Gwahangno, Yusung-Gu, Daejeon, 305-333, Korea
| | - E.-N. Bang
- National Fusion Research Institute, 169-148 Gwahangno, Yusung-Gu, Daejeon, 305-333, Korea
| | - K.-R. Kim
- National Fusion Research Institute, 169-148 Gwahangno, Yusung-Gu, Daejeon, 305-333, Korea
- Department of Nuclear Fusion and Plasma Science, University of Science and Technology, 169-148 Gwahangno, Yusung-Gu, Daejeon, 305-333, Korea
| | - A. Litnovsky
- Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Straße, 52428 Jülich, Germany
| | - M. Hellwig
- Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Straße, 52428 Jülich, Germany
| | - D. Matveev
- Department of Applied Physics, Ghent University, Plateaustraat 22, B-9000 Ghent, Belgium
- Institut für Energie- und Klimaforschung–Plasmaphysik, Forschungszentrum Jülich GmbH, Association EURATOM-FZJ, Trilateral Euregio Cluster, D-52425 Jülich, Germany
| | - M. Komm
- Department of Surface and Plasma Science, Charles University, CZ-18000 Prague, Czech Republic
| | - M. van den Berg
- Dutch Institute for Fundamental Energy Research (DIFFER), Association EURATOM-FOM, Trilateral Euregio Cluster, Postbus 1207, 3430BE, Nieuwegein, The Netherlands
| | - W.-C. Kim
- National Fusion Research Institute, 169-148 Gwahangno, Yusung-Gu, Daejeon, 305-333, Korea
| | - H.-K. Kim
- National Fusion Research Institute, 169-148 Gwahangno, Yusung-Gu, Daejeon, 305-333, Korea
| | - T.-H. Rho
- National Fusion Research Institute, 169-148 Gwahangno, Yusung-Gu, Daejeon, 305-333, Korea
| | - Y. Chu
- National Fusion Research Institute, 169-148 Gwahangno, Yusung-Gu, Daejeon, 305-333, Korea
| | - Y.-K Oh
- National Fusion Research Institute, 169-148 Gwahangno, Yusung-Gu, Daejeon, 305-333, Korea
| | - H.-L. Yang
- National Fusion Research Institute, 169-148 Gwahangno, Yusung-Gu, Daejeon, 305-333, Korea
| | - K.-R. Park
- National Fusion Research Institute, 169-148 Gwahangno, Yusung-Gu, Daejeon, 305-333, Korea
| | - K.-S. Chung
- Department of electrical engineering, HanYang University, Seoul, Korea
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Schulz VJ, Smit JJ, Bol-Schoenmakers M, van Duursen MBM, van den Berg M, Pieters RHH. Activation of the aryl hydrocarbon receptor reduces the number of precursor and effector T cells, but preserves thymic CD4+CD25+Foxp3+ regulatory T cells. Toxicol Lett 2012; 215:100-9. [PMID: 23041608 DOI: 10.1016/j.toxlet.2012.09.024] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Revised: 09/24/2012] [Accepted: 09/26/2012] [Indexed: 12/12/2022]
Abstract
Aryl hydrocarbon receptor (AhR) activation suppresses immune responses, including allergic sensitization, by increasing the percentage of regulatory (Treg) cells. Furthermore, AhR activation is known to affect thymic precursor T cells. However, the effect of AhR activation on intrathymic CD4+CD25+Foxp3+ Treg cells is unknown. Therefore, we investigated the effect of AhR activation on the percentage and number of CD4+CD25+Foxp3+ Treg cells during allergic sensitization in relevant immunological organs. C3H/HeOuJ mice were treated on day 0 with 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) and subsequently sensitized to peanut. On day 8, mice were sacrificed and thymus, spleen and mesenteric lymph nodes (MLN) were isolated. TCDD treatment decreased the number of CD4-CD8-, CD4+CD8+, CD4+CD8- and CD4-CD8+ precursor T cells, but not the number of thymic CD4+CD25+Foxp3+ Treg cells. TCDD treatment increased the number of splenic CD4+CD25+Foxp3+ Treg cells and decreased Th1, Th2 and cytotoxic T cells in the spleen. This appeared to be independent of allergic sensitization. In MLN, TCDD treatment suppressed the increase of the number of CD4+CD25+Foxp3+ Treg cells, Th1, Th2 and cytotoxic T cells induced by peanut sensitization. Together, TCDD treatment preserves thymic CD4+CD25+Foxp3+ Treg cells and decreases peripheral T helper and cytotoxic T cells. This effect of TCDD may contribute to the increased influence of CD4+CD25+Foxp3+ Treg cells on immune mediated responses and to the understanding of how AhR activation modulates immune mediated diseases, including food allergy.
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Affiliation(s)
- V J Schulz
- Institute for Risk Assessment Sciences, Utrecht University, P.O. Box 80177, 3508 TD Utrecht, The Netherlands
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Mela F, Fritsche K, de Boer W, van den Berg M, van Veen JA, Maharaj NN, Leveau JHJ. Comparative genomics of bacteria from the genus Collimonas: linking (dis)similarities in gene content to phenotypic variation and conservation. Environ Microbiol Rep 2012; 4:424-432. [PMID: 23760828 DOI: 10.1111/j.1758-2229.2012.00336.x] [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] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Collimonas is a genus of soil bacteria comprising three recognized species: C. fungivorans, C. pratensis and C. arenae. Collimonads share the ability to degrade chitin (chitinolysis), feed on living fungal hyphae (mycophagy), and dissolve minerals (weathering), but vary in their inhibition of fungi (fungistasis). To better understand this phenotypic variability, we analysed the genomic content of four strains representing three Collimonas species (Ter14, Ter6, Ter91 and Ter10) by hybridization to a microarray based on reference strain C. fungivorans Ter331. The analysis revealed genes unique to strain Ter331 (e.g. those on the extrachromosomal element pTer331) and genes present in some but not all of the tested strains. Among the latter were several candidates that may contribute to fungistasis, including genes for the production and secretion of antifungals. We hypothesize that differential possession of these genes underlies the specialization of Collimonas strains towards different fungal hosts. We identified a set of 136 genes that were common in all tested Collimonas strains, but absent from the genomes of three other members of the family Oxalobacteraceae. Predicted products of these 'Collimonas core' genes include lytic, secreted enzymes such as chitinases, peptidases, nucleases and phosphatases with a putative role in mycophagy and weathering.
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Affiliation(s)
- F Mela
- Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, the Netherlands Institute of Biology, Leiden University, Leiden, the Netherlands Department of Plant Pathology, University of California, Davis, CA 95616, USA
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Chakraborty P, Chakravarty BN, Kabir SN, Goswami SK, Yenicesu O, Gulerman C, Ozyer S, Cakar E, Sarikaya E, Mollamahmutoglu L, Daponte A, Deligeoroglou E, Pournaras S, Tsezou A, Garas A, Skentou H, Messinis IE, Chakravarty BN, Ganesh A, Chowdhuri K, Shyam T, Ghosh S, Chattopadhyay R, Banerjee P, Pasricha P, Chakravarty BN, Chaudhury K, Kuji N, Kitamura S, Mochimaru Y, Yamada M, Hamatani T, Kawakami M, Hirayama A, Sugimoto M, Soga T, Tomita M, Yoshimura Y, Tabibi A, Tarahhomi M, Roghayee M, Bayatsarmadi H, Zolghadri J, Younesi M, Bug S, Solfrank B, Pricelius J, Craig A, Botcherby M, Stecher M, Bingemann S, Becker B, Nevinny-Stickel-Hinzpeter C, Kuroda K, Venkatakrishnan R, Salker MS, Quenby S, Brosens JJ, Rahmati M, Petitbarat M, Dubanchet S, Chaouat G, Ledee N, van den Berg M, van Maarle MC, van Wely M, Goddijn M, Telli P, Erdem M, Bozkurt N, Oktem M, Yirmibes K. M, Karabacak O, Erdem A, Kim CH, Lee KH, Kim SH, Chae HD, Kang BM, Jung KS, Johnson S, Godbert S, Perry P, Parkinson P, Vink-Ranti CQJ, Van Os HC, Tucker KE, Kapiteijn K, Heijdra PMA, Jansen CAM, Matsumoto H, Sato Y, Suginami K, Horie A, Fujiwara H, Konishi I, Yamada S, Kataoka N, Ogata S, Mukai M, Inai K, Hashimoto H, Tokura Y, Mizusawa Y, Matsumoto Y, Okamoto E, Kokeguchi S, Shiotani M, Mariee N, Li TC, Laird SM, Refaat B, Simpson H, Ledger W, Confino E, Williams A, Grabar V, Feskov A, Feskova I, Blazhko E, Horie A, Fujiwara H, Sato Y, Suginami K, Matsumoto H, Maruyama M, Konishi I, Hattori A, Chi HB, Qiao J, Wang HN, Hong TP, Gao HW, Abdelnaby El Gelany SAA, Nady Abdelmegeed A, Markoff A, Rogenhofer N, Engels L, Bogdanova N, Tuettelmann F, Thaler C, Seckin B, Sarikaya E, Sargin Oruc A, Celen S, Cicek N, Zarei S, Torabi R, Zeraati H, Zarnani AH, Akhondi MM, Hadavi R, Savadi-Shiraz E, Jeddi-Tehrani M, Sugiura-Ogasawara M, Ozaki Y, Katano K, Suzumori N, Kitaori T, Mizutani E, Al-Gubory KH, Bolifraud P, Angele K, Grange S, Puillet-Anselme L, Garrel C. EARLY PREGNANCY. Hum Reprod 2012. [DOI: 10.1093/humrep/27.s2.76] [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: 11/14/2022] Open
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van Duursen MBM, Nijmeijer SM, de Morree ES, de Jong PC, van den Berg M. Genistein induces breast cancer-associated aromatase and stimulates estrogen-dependent tumor cell growth in in vitro breast cancer model. Toxicology 2011; 289:67-73. [PMID: 21854827 DOI: 10.1016/j.tox.2011.07.005] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2011] [Revised: 07/06/2011] [Accepted: 07/09/2011] [Indexed: 11/30/2022]
Abstract
In breast cancer, the interaction between estrogen-producing breast adipose fibroblasts (BAFs) and estrogen-dependent epithelial tumor cells is pivotal. Local estrogen production is catalyzed by aromatase, which is differentially regulated in disease-free and tumorigenic breast tissue. The use of aromatase inhibitors to block local estrogen production has proven effective in treatment of estrogen-dependent breast cancer. However, a major problem during breast cancer treatment is the sudden onset of menopause and many women seek for alternative medicines, such as the soy isoflavone genistein. In this study, we show that genistein can induce estrogen-dependent MCF-7 tumor cell growth and increase breast cancer-associated aromatase expression and activity in vitro. We have previously developed an in vitro breast cancer model where the positive feedback loop between primary BAFs and estrogen-dependent MCF-7 tumor cells is operational, thereby representing a more natural in vitro model for breast cancer. In this model, genistein could negate the growth inhibitory action of the aromatase inhibitor fadrozole at physiologically relevant concentrations. These data suggest that soy-based supplements might affect the efficacy of breast cancer treatment with aromatase inhibitors. Considering the high number of breast cancer patients using soy supplements to treat menopausal symptoms, the increasing risk for adverse interactions with breast cancer treatment is of major concern and should be considered with care.
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Affiliation(s)
- M B M van Duursen
- Endocrine Toxicology, Institute for Risk Assessment Sciences, Utrecht University, Yalelaan 2, PO Box 80177, 3508 TD, Utrecht University, Utrecht, The Netherlands.
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Schulz VJ, Smit JJ, Willemsen KJ, Fiechter D, Hassing I, Bleumink R, Boon L, van den Berg M, van Duursen MBM, Pieters RHH. Activation of the aryl hydrocarbon receptor suppresses sensitization in a mouse peanut allergy model. Toxicol Sci 2011; 123:491-500. [PMID: 21804081 DOI: 10.1093/toxsci/kfr175] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Food allergy is an increasing health problem in Western countries. Previously, it has been shown that the intensity of food allergic reactions can be regulated by regulatory T (T(reg)) cells. In addition, it has been shown that activation of the aryl hydrocarbon receptor (AhR) regulates T-cell responses by induction of T(reg) cells. Therefore, we hypothesized that activation of the AhR pathway can suppress development of food allergic responses through the induction of T(reg) cells. This was investigated by using a mouse model for peanut allergy. C3H/HeOuJ mice (AhR(b)(-2)) were sensitized to peanut by administering peanut extract (PE) by gavage in the presence of cholera toxin and were treated with the prototypical AhR ligand 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) (0.6, 1.7, 5, and 15 μg/kg body weight) on days 3 and 11 orally. The functional role of CD4(+)CD25(+)Foxp3(+) T(reg) cells was investigated by depleting these cells with anti-CD25 mAb during sensitization to PE. TCDD treatment dose dependently suppressed sensitization to peanut (PE-specific IgE, IgG1, and IgG2a and PE-induced IL-5, IL-10, and IL-13, respectively). The percentage, but not the number, of CD4(+)CD25(+)Foxp3(+) T(reg) cells dose dependently increased by AhR activation in both spleen and mesenteric lymph nodes. Depletion of CD4(+)CD25(+)Foxp3(+) T(reg) cells markedly reversed the suppressive effect of TCDD on PE-specific antibody levels and PE-induced IL-5, IL-10, and IL-13 cytokine production. Present data demonstrate for the first time that activation of the AhR by TCDD suppressed the development of Th2-mediated food allergic responses. A functional shift within the CD4(+) cell population toward CD4(+)CD25(+)Foxp3(+) T(reg) cells appeared to underlie this effect. This suggests that the AhR pathway might provide potential therapeutic targets to treat food allergic diseases.
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Affiliation(s)
- V J Schulz
- Department of Toxicology, Institute for Risk Assessment Sciences, Utrecht University, 3508 TD Utrecht, The Netherlands.
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Castellote J, van den Berg M, Valls Solé J. P22.8 The effect of preceding muscle activity on reaction time. Clin Neurophysiol 2011. [DOI: 10.1016/s1388-2457(11)60569-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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van den Berg M, Verbaarschot P, Hontelez S, Vet LEM, Dicke M, Smid HM. CREB expression in the brains of two closely related parasitic wasp species that differ in long-term memory formation. Insect Mol Biol 2010; 19:367-379. [PMID: 20236366 DOI: 10.1111/j.1365-2583.2010.00997.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The cAMP/PKA signalling pathway and transcription factor cAMP response element-binding protein (CREB) play key roles in long-term memory (LTM) formation. We used two closely related parasitic wasp species, Cotesia glomerata and Cotesia rubecula, which were previously shown to be different in LTM formation, and sequenced at least nine different CREB transcripts in both wasp species. The splicing patterns, functional domains and amino acid sequences were similar to those found in the CREB genes of other organisms. The predicted amino acid sequences of the CREB isoforms were identical in both wasp species. Using real-time quantitative PCR we found that two low abundant CREB transcripts are differentially expressed in the two wasps, whereas the expression levels of high abundant transcripts are similar.
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Affiliation(s)
- M van den Berg
- Laboratory of Entomology, Wageningen University, Wageningen, The Netherlands
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