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Matched pair analysis of the effect of longer hypothermic machine perfusion time on kidney transplant outcomes

World Journal of Transplantation 2024年第3期14卷 95-101页

作者： carlos.verdiales.luke baxter Hyun Ja Lim Gavin Beck Michael A Moser Department of Surgery University of SaskatchewanSaskatoonSaskatchewan S7N 0W8Canada College of Medicine University of SaskatchewanSaskatoonSaskatchewan S7N 0W8Canada Canada and Northern Ontario School of Medicine Thunder BayOntario P7B 5E1Canada Department of Community Health and Epidemiology University of SaskatchewanSaskatoonSaskatchewan S7N 0W8Canada

BACKGROUND Hypothermic machine perfusion(HMP)has demonstrated benefits in terms of early kidney transplant function compared to static cold *** longer preservation times have shown detrimental effects,a previous paired study indicated that longer pump times(the second kidney in a pair)might lead to improved *** To revisit the prior paired study's somewhat unexpected results by reviewing our program's *** A total of 61 pairs of transplant recipients who received kidneys from the same donor(2012-2021)were *** were divided into two groups depending on whether they were transplanted first(K1)or second(K2).Therefore,the patients in each pair had identical donor characteristics,except for time on the *** analyses included Kaplan-Meyer analysis and paired tests,including McNemar's test,student's paired t-test,or Wilcoxon's test,as *** The two groups of recipients had similar demographics(age,body mass index,diabetes,time on dialysis,sensit-ization and retransplants).Cold ischemic times for K1 and K2 were 8.9(95%CI:7.9,9.8)and 14.7 hours(13.7,15.8)(P<0.0001),***,K2 had a higher rate of freedom from biopsy-proven acute rejection at 1 year(P=0.015).Delayed graft function was less common in K2,12/61(20%)than in K1,20/61(33%)(P=0.046).Finally,K2 showed a higher graft survival than K1(P=0.023).CONCLUSION Our results agree with a previous study that suggested possible advantages to longer pump *** studies should encourage further research into HMP's potential anti-inflammatory effect.

关键词： Hypothermic machine perfusion Paired kidney study Early acute rejection

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Projections of weak braided Hopf algebras

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Science China Mathematics 2011年第5期54卷 877-906页

作者： ALONSO LVAREZ Jos Nicanor FERNNDEZ VILABOA Jos Manuel GONZLEZ RODRíIGUEZ Ramón SONEIRA CALVO carlos Departamento de Matemticas Universidad de Vigo Vigo E-36310 Spain Departamento de lxebra Universidad de Santiago de Compostela Santiago de Compostela E-15771 Spain Departamento de Matemtica Aplicada II Universidad de Vigo Vigo E-36310 Spain Departamento de Matemticas Universidad de Vigo Vigo E-36004 Spain

In this paper we study the projections of weak braided Hopf algebras using the notion of Yetter-Drinfeld module associated with a weak braided Hopf algebra. As a consequence, we complete the study ofthe structure of weak Hopf algebras with a projection in a braiding setting obtaining a categorical equivalencebetween the category of weak Hopf algebra projections associated with a weak Hopf algebra H living in abraided monoidal category and the category of Hopf algebras in the non-strict braided monoidal category ofleft-left Yetter-Drinfeld modules over H.

关键词： weak Yang-baxter operator Yetter-Drinfeld module weak (braided) Hopf algebra weak Hopf algebra projection

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