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24 results on '"Wiersema-Buist, Janneke"'

1. Prolonged hypothermic machine perfusion enables daytime liver transplantation – an IDEAL stage 2 prospective clinical trial

Author

de Meijer, Vincent E., Brüggenwirth, Isabel M.A., Lantinga, Veerle A., Moers, Cyril, Monbaliu, Diethard, Hofker, Sijbrand H., Bottema, Jan, Franke, Hildegaard S., de Boer, Marieke T., van den Boom, Anne Loes, Buis, Carlijn I., Fouraschen, Suomi M.G., Hoogwater, Frederik J.H., Klaase, Joost M., de Kleine, Ruben H.J., Meerdink, Mark, Nijkamp, Maarten W., Porte, Robert J., Rayar, A. Michel, van den Berg, Aad P., Blokzijl, Hans, Cuperus, Frans J.C., van der Heide, Frans, van Vilsteren, Frederike G.I., Abbasova, Ilhama F., Fernhout, Meine H., Meyer, Peter, Muskiet, Ernesto R.R., Reyntjens, Koen M.E.M., Vos, Jaap J., Zeillemaker, Miriam, Haring, Martijn P.D., Lascaris, Bianca, Pamplona, Carol C., Thorne, Adam M., Veenma, Vivianne, van Leeuwen, Otto B., Bodewes, Silke B., Lisman, Ton, Adelmeijer, Jelle, Wiersema-Buist, Janneke, van den Heuvel, Marius, and de Kleine, Ruben H.

Published
2024
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2. Prolonged hypothermic machine perfusion enables daytime liver transplantation – an IDEAL stage 2 prospective clinical trial

Author

Brüggenwirth, Isabel M.A., primary, Lantinga, Veerle A., additional, Lascaris, Bianca, additional, Thorne, Adam M., additional, Meerdink, Mark, additional, de Kleine, Ruben H., additional, Blokzijl, Hans, additional, van den Berg, Aad P., additional, Reyntjens, Koen M.E.M., additional, Lisman, Ton, additional, Porte, Robert J., additional, de Meijer, Vincent E., additional, Brüggenwirth, Isabel M.A., additional, Moers, Cyril, additional, Monbaliu, Diethard, additional, Hofker, Sijbrand H., additional, Bottema, Jan, additional, Franke, Hildegaard S., additional, de Boer, Marieke T., additional, van den Boom, Anne Loes, additional, Buis, Carlijn I., additional, Fouraschen, Suomi M.G., additional, Hoogwater, Frederik J.H., additional, Klaase, Joost M., additional, de Kleine, Ruben H.J., additional, Nijkamp, Maarten W., additional, Rayar, A. Michel, additional, Cuperus, Frans J.C., additional, van der Heide, Frans, additional, van Vilsteren, Frederike G.I., additional, Abbasova, Ilhama F., additional, Fernhout, Meine H., additional, Meyer, Peter, additional, Muskiet, Ernesto R.R., additional, Vos, Jaap J., additional, Zeillemaker, Miriam, additional, Haring, Martijn P.D., additional, Pamplona, Carol C., additional, Veenma, Vivianne, additional, van Leeuwen, Otto B., additional, Bodewes, Silke B., additional, Adelmeijer, Jelle, additional, Wiersema-Buist, Janneke, additional, and van den Heuvel, Marius, additional

Published
2024
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7. Effect of school reopening on SARS-CoV-2 incidence in a low-prevalence region: Prospective SARS-CoV-2 testing in healthcare workers with primary school-attending children versus without children living at home

Author

Frie, Melvin, primary, Havinga, Lisa M, additional, Wiersema-Buist, Janneke, additional, Veldman, Charlotte G, additional, de Vries, Marjan JT, additional, Rurenga-Gard, Lilli, additional, Friedrich, Alex W, additional, and Knoester, Marjolein, additional

Published
2021
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8. sj-docx-1-bji-10.1177_17571774211012469 – Supplemental material for Effect of school reopening on SARS-CoV-2 incidence in a low-prevalence region: Prospective SARS-CoV-2 testing in healthcare workers with primary school-attending children versus without children living at home

Author

Frie, Melvin, Havinga, Lisa M, Wiersema-Buist, Janneke, Veldman, Charlotte G, de Vries, Marjan JT, Rurenga-Gard, Lilli, Friedrich, Alex W, and Knoester, Marjolein

Subjects
111099 Nursing not elsewhere classified, 111708 Health and Community Services, 111799 Public Health and Health Services not elsewhere classified, FOS: Health sciences
Abstract

Supplemental material, sj-docx-1-bji-10.1177_17571774211012469 for Effect of school reopening on SARS-CoV-2 incidence in a low-prevalence region: Prospective SARS-CoV-2 testing in healthcare workers with primary school-attending children versus without children living at home by Melvin Frie, Lisa M Havinga, Janneke Wiersema-Buist, Charlotte G Veldman, Marjan JT de Vries, Lilli Rurenga-Gard, Alex W Friedrich and Marjolein Knoester in Journal of Infection Prevention

Published
2021
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14. Aggravation of fibrin deposition and microthrombus formation within the graft during kidney transplantation.

Author

van den Berg, Tamar A. J., van den Heuvel, Marius C., Wiersema-Buist, Janneke, Adelmeijer, Jelle, Nieuwenhuijs-Moeke, Gertrude J., Lisman, Ton, Bakker, Stephan J. L., van Goor, Harry, TransplantLines Investigators, Annema-de Jong, J. H., Bakker, S. J. L., Berger, S. P., Blokzijl, J., Bodewes, F. A. J. A., de Boer, M. T., Damman, K., De Borst, M. H., Diepstra, A., Dijkstra, G., and Douwes, R. M.

Subjects
KIDNEY transplantation, FIBRIN, IMMUNOHISTOCHEMISTRY, REPERFUSION, PERFUSION
Abstract

In kidney transplantation, microthrombi and fibrin deposition may lead to local perfusion disorders and subsequently poor initial graft function. Microthrombi are often regarded as donor-derived. However, the incidence, time of development, and potential difference between living donor kidneys (LDK) and deceased donor kidneys(DDK), remains unclear. Two open-needle biopsies, taken at preimplantation and after reperfusion, were obtained from 17 LDK and 28 DDK transplanted between 2005 and 2008. Paraffin-embedded sections were immunohistochemically stained with anti-fibrinogen antibody. Fibrin deposition intensity in peritubular capillaries(PTC) and glomeruli was categorized as negative, weak, moderate or strong and the number of microthrombi/mm2 was quantified. Reperfusion biopsies showed more fibrin deposition (20% to 100% moderate/strong, p < 0.001) and more microthrombi/mm2 (0.97 ± 1.12 vs. 0.28 ± 0.53, p < 0.01) than preimplantation biopsies. In addition, more microthrombi/mm2 (0.38 ± 0.61 vs. 0.09 ± 0.22, p = 0.02) and stronger fibrin intensity in glomeruli (28% vs. 0%, p < 0.01) and PTC (14% vs. 0%, p = 0.02) were observed in preimplantation DDK than LDK biopsies. After reperfusion, microthrombi/mm2 were comparable (p = 0.23) for LDK (0.09 ± 0.22 to 0.76 ± 0.49, p = 0.03) and DDK (0.38 ± 0.61 to 0.90 ± 1.11, p = 0.07). Upon reperfusion, there is an aggravation of microthrombus formation and fibrin deposition within the graft. The prominent increase of microthrombi in LDK indicates that they are not merely donor-derived. [ABSTRACT FROM AUTHOR]

Published
2021
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15. Organ‐specific metabolic profiles of the liver and kidney during brain death and afterwards during normothermic machine perfusion of the kidney

Author

Erp, Anne C., Qi, Haiyun, Jespersen, Nichlas R., Hjortbak, Marie V., Ottens, Petra J., Wiersema‐Buist, Janneke, Nørregaard, Rikke, Pedersen, Michael, Laustsen, Christoffer, Leuvenink, Henri G. D., and Jespersen, Bente

Abstract

We investigated metabolic changes during brain death (BD) using hyperpolarized magnetic resonance (MR) spectroscopy and ex vivo graft glucose metabolism during normothermic isolated perfused kidney (IPK) machine perfusion. BD was induced in mechanically ventilated rats by inflation of an epidurally placed catheter; sham‐operated rats served as controls. Hyperpolarized [1‐13C]pyruvate MR spectroscopy was performed to quantify pyruvate metabolism in the liver and kidneys at 3 time points during BD, preceded by injecting hyperpolarized[1‐13C]pyruvate. Following BD, glucose oxidation was measured using tritium‐labeled glucose (d‐6‐3H‐glucose) during IPK reperfusion. Quantitative polymerase chain reaction and biochemistry were performed on tissue/plasma. Immediately following BD induction, lactate increased in both organs (liver: eµd0.21, 95% confidence interval [CI] [−0.27, −0.15]; kidney: eµd0.26, 95% CI [−0.40, −0.12]. After 4 hours of BD, alanine production decreased in the kidney (eµd0.14, 95% CI [0.03, 0.25], P< .05). Hepatic lactate and alanine profiles were significantly different throughout the experiment between groups (P< .01). During IPK perfusion, renal glucose oxidation was reduced following BD vs sham animals (eµd0.012, 95% CI [0.004, 0.03], P< .001). No differences in enzyme activities were found. Renal gene expression of lactate‐transporter MCT4 increased following BD (P< .01). In conclusion, metabolic processes during BD can be visualized in vivo using hyperpolarized magnetic resonance imaging and with glucose oxidation during ex vivo renal machine perfusion. These techniques can detect differences in the metabolic profiles of the liver and kidney following BD. Differences in glucose metabolism in the liver and kidney can be visualized in vivo during brain death using hyperpolarized magnetic resonance spectroscopy and ex vivo following brain death during normothermic kidney machine perfusion using glucose oxidation.

Published
2020
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16. Normothermic machine perfusion reduces bile duct injury and improves biliary epithelial function in rat donor livers

Author

op den Dries, Sanna, primary, Karimian, Negin, additional, Westerkamp, Andrie C., additional, Sutton, Michael E., additional, Kuipers, Michiel, additional, Wiersema‐Buist, Janneke, additional, Ottens, Petra J., additional, Kuipers, Jeroen, additional, Giepmans, Ben N., additional, Leuvenink, Henri G. D., additional, Lisman, Ton, additional, and Porte, Robert J., additional

Published
2016
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24. Determination of an adequate perfusion pressure for continuous dual vessel hypothermic machine perfusion of the rat liver.

Author

't Hart, Nils A., Der Van Plaats, Arjan, Leuvenink, Henri G. D., Van Goor, Harry, Wiersema-Buist, Janneke, Verkerke, Gijsbertus J., Rakhorst, Gerhard, and Ploeg, Rutger J.

Subjects
MEDICAL research, HYPOTHERMIA, ISCHEMIA, FLUORESCENCE microscopy, LABORATORY rats, ACRIDINE, CELLS
Abstract

Hypothermic machine perfusion (HMP) provides better protection against ischemic damage of the kidney compared to cold-storage. The required perfusion pressures needed for optimal HMP of the liver are, however, unknown. Rat livers were preserved in University of Wisconsin organ preservation solution enriched with acridine orange (AO) to stain viable cells and propidium iodide (PI) to detect dead cells. Perfusion pressures of 12.5%, 25% or 50% of physiologic perfusion pressures were compared. Intravital fluorescence microscopy was used to assess liver perfusion by measuring the percentage of AO staining. After 1-h, the perfusion pressure of 12.5% revealed 72% ± 3% perfusion of mainly the acinary zones one and two. The perfusion pressure of 25% and 50% showed complete perfusion. Furthermore, 12.5% showed 14.7 ± 3.6, 25% showed 3.7 ± 0.9, and 50% showed 11.2 ± 1.4 PI positive cells. One hour was followed by another series of experiments comprising 24-h preservation. In comparison with 24-h cold-storage, HMP at 25% showed less PI positive cells and HMP at 50% showed more PI positive cells. In summary, perfusion at 25% showed complete perfusion, demonstrated by AO staining, with minimal cellular injury, shown with PI. This study indicates that fine-tuning of the perfusion pressure is crucial to balance (in)complete perfusion and endothelial injury. [ABSTRACT FROM AUTHOR]

Published
2007
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