Abstract:
BACKGROUND:The activation of the tryptophane catabolizing enzyme Indoleamine 2,3-dioxygenase leads to the formation of kynurenine and other metabolites that counter-regulate immune activation resulting in restoration of immune homeostasis. But in chronic immune activation, as in hemodialysed patients, the immunosuppressive feedback mechanisms continue as indicated by elevated kynurenine concentrations. However, its relevance is still a matter of debate. MATERIAL/METHODS:This retrospective analysis presents the pre-transplant kynurenine levels (quantified photometrically) of 307 kidney graft recipients in connection with some pre- and post-transplant variables and the type of immunosuppression (cyclosporine-based triple drug therapy without/with ATG-Fresenius-induction). Statistical analyses performed were analysis of variance, Scheffé's test for pairwise comparisons, Cox regression, Spearman's rank correlation, and extended segmentation analysis. RESULTS:The pre-transplant kynurenine level was significantly elevated as compared to healthy adults (14.1±5.9 vs. 2.7±0.6 nmol/ml, p<0.0001), significantly higher in PRA positive than in PRA negative patients (16.1 vs. 12.9 nmol/ml, p<0.001) and, supporting this observation, also higher (p<0.0001) in a cohort with predominant (89.7%) pre-sensitized patients (16.4±6.4 nmol/ml) having the longest time on the waiting list (median 39 months) as compared to cohorts with fewer (16.8-22%) pre-sensitized patients (12.7±4.4 resp. 13.4±5.8 nmol/ml) having shorter times on the waiting list (16-24 months). Patients with immediately functioning grafts showed a lower pre-transplant kynurenine level than patients with non-immediately functioning grafts (13.5±6.0 vs. 14.9±5.7 nmol/ml, p=0.053). No associations were found with basic diseases, rejections, or graft survival. CONCLUSIONS:The pre-transplant elevated serum kynurenine levels were highly associated with the patient's pre-sensitization status and their longer time on hemodialysis treatments, but did not allow prognostic assessments.
journal_name
Ann Transplantjournal_title
Annals of transplantationauthors
Kaden J,Abendroth D,Völp A,Marzinzig M,Wesslau Cdoi
10.12659/AOT.889764subject
Has Abstractpub_date
2014-01-27 00:00:00pages
51-9eissn
1425-9524issn
2329-0358pii
889764journal_volume
19pub_type
杂志文章abstract:UNLABELLED:In spite of progress in biotechnology, isolation of porcine pancreatic islets remains a difficult task with unpredictable results. One reason could be the lack of knowledge as to the expression of extracellular matrix proteins in porcine exocrine and endocrine tissues, particularly in "islet capsules". Such ...
journal_title:Annals of transplantation
pub_type: 杂志文章
doi:
更新日期:1997-01-01 00:00:00
abstract::Stem cell research seems now to reach important progress in biomedicine, giving promising perspective for clinical implementation. The review of stem cell research is presented including origin, content in various organs, harvesting, preservation and storage. Some examples of results achieved in stem cell research inc...
journal_title:Annals of transplantation
pub_type: 杂志文章,评审
doi:
更新日期:2003-01-01 00:00:00
abstract::BACKGROUND Intrahepatic cholangiocarcinoma (ICC) can be incidentally diagnosed after liver transplantation (LT). We investigated the clinicopathological features of LT recipients with ICC and compared prognosis with that of the control group. MATERIAL AND METHODS We identified 16 recipients with ICC in our institution...
journal_title:Annals of transplantation
pub_type: 杂志文章
doi:10.12659/aot.901504
更新日期:2017-01-26 00:00:00
abstract:BACKGROUND:This study evaluated the effect of liver transplantation (LTX) and STACE on overall survival in palliative patients with HCC exceeding Milan criteria. MATERIAL AND METHODS:At a single center 63 HCC patients exceeding Milan criteria were retrospectively analyzed. Forty patients underwent STACE as palliative ...
journal_title:Annals of transplantation
pub_type: 杂志文章
doi:10.12659/AOT.884018
更新日期:2013-10-01 00:00:00
abstract:BACKGROUND:Antibody-mediated rejection (AMR), associated with the presence of C4d deposits, is well-defined in kidney transplantation but much less documented in liver transplantation (LTx). The aim of our study was to retrospectively analyze a group of pediatric liver transplant recipients who experienced episodes of ...
journal_title:Annals of transplantation
pub_type: 杂志文章
doi:10.12659/AOT.889921
更新日期:2014-03-04 00:00:00
abstract:BACKGROUND:Significant geographic disparities exist in access to liver transplantation and consequently the current liver allocation system is being challenged. We sought to describe our unique experience with using organs with long cold ischemia times from the largest donation service area. MATERIAL AND METHODS:From ...
journal_title:Annals of transplantation
pub_type: 杂志文章
doi:10.12659/aot.896190
更新日期:2016-03-08 00:00:00
abstract::BACKGROUND Left ventricular assist devices (LVAD) are used to treat heart failure. Preoperative prediction of RV function after LVAD implantation is crucial. Correlations were found between preoperative echo and RV function after LVAD implantation. MATERIAL AND METHODS We retrospectively reviewed 23 male patients (8 i...
journal_title:Annals of transplantation
pub_type: 杂志文章
doi:10.12659/aot.899054
更新日期:2016-08-11 00:00:00
abstract:BACKGROUND:Organ transplantation increases the risk of cancer including lymphomas through various and insidious mechanisms. In this study, we aimed to gather and analyze data of 5 international studies on late onset lymphoproliferative disorders after renal and liver transplantation. MATERIAL/METHODS:We conducted a co...
journal_title:Annals of transplantation
pub_type: 杂志文章,评审
doi:
更新日期:2009-10-01 00:00:00
abstract:BACKGROUND:Early post-operative hyperglycemia is commonly encountered in patients without pre-existing diabetes mellitus who are undergoing kidney transplantation. The aim of this study was to determine the effect of early post-operative hyperglycemia on graft and patient survival after kidney transplantation in our ce...
journal_title:Annals of transplantation
pub_type: 杂志文章
doi:10.12659/AOT.883937
更新日期:2013-06-07 00:00:00
abstract:BACKGROUND:Fungal infections have a significant impact on patient survival after liver transplantation, mostly caused by Candida and Aspergillus. The clinical manifestations vary, and range from colonization, active local infection, to severe invasive form. A high degree of suspicion is required for the early diagnosis...
journal_title:Annals of transplantation
pub_type: 杂志文章
doi:10.12659/AOT.892132
更新日期:2014-12-22 00:00:00
abstract:AIM OF THE STUDY:was to examine the influence of conversion from cyclosporine-based therapy to tacrolimus/mycophenolate mofetil (MMF) on renal graft survival in patients with refractory rejection and on the recurrence of rejection in patients converted at the time of the first episode of rejection. PATIENTS AND METHOD...
journal_title:Annals of transplantation
pub_type: 杂志文章,评审
doi:
更新日期:2006-01-01 00:00:00
abstract::BACKGROUND Acute graft-versus-host disease (aGVHD) remains the most common and challenging complication after allogeneic hematopoietic stem cell transplantation (allo-HSCT). An important obstacle to the therapeutic effect of aGVHD is the inability to identify risk factors for an individual patient at the onset of symp...
journal_title:Annals of transplantation
pub_type: 杂志文章
doi:10.12659/aot.901495
更新日期:2017-02-03 00:00:00
abstract:BACKGROUND:Insufficiency of blood vessels supplying a limb allograft may lead to loss of the extremity. Thus, a regular evaluation of perfusion of transplants seems a reasonable approach. The purpose of the present study was assessment of allograft perfusion by means of non-invasive methods. MATERIAL/METHODS:Six hand ...
journal_title:Annals of transplantation
pub_type: 杂志文章
doi:10.12659/AOT.892422
更新日期:2014-12-01 00:00:00
abstract:BACKGROUND:Despite observed huge progress in understanding the immunological basis of transplantation and the development of new immunosuppressive agents that have significantly improved both -- the patient and graft survival, still the kidney donation from live volunteers remains the most consistent factor which affec...
journal_title:Annals of transplantation
pub_type: 杂志文章
doi:
更新日期:2008-01-01 00:00:00
abstract::The patient is a 28 year old woman who received a heart transplant in 1992 secondary to hypertrophic cardiomyopathy with unremarkable post-operative course. In the period immediately post transplantation the patient was on a four-drug immunosuppressive regimen which was subsequently changed to standard three-agent the...
journal_title:Annals of transplantation
pub_type: 杂志文章
doi:
更新日期:1996-01-01 00:00:00
abstract:BACKGROUND:The early phase of MPA exposure has rarely been investigated after solid organ transplantation, especially in heart transplantation patients. We evaluated the association between exposure to mycophenolic acid (MPA), a main metabolite of mycophenolate mofetil (MMF), and clinical events within 3 months after h...
journal_title:Annals of transplantation
pub_type: 临床试验,杂志文章
doi:10.12659/AOT.883812
更新日期:2013-02-05 00:00:00
abstract::Even in the case of live related kidney donation, coercion within families is applied on the most vulnerable amongst them. This vulnerability could be financial, social or psychological In this paper we discuss how to assess the willingness or unwillingness of a kidney donor and discover if any coercion has been appli...
journal_title:Annals of transplantation
pub_type: 杂志文章
doi:
更新日期:2005-01-01 00:00:00
abstract:OBJECTIVES:The goal of this study was to examine the impact of various immunosuppressive regimens on an early NK cell recovery following haematopoietic cell transplantation (alloHCT). METHODS:The number of peripheral blood NK cells was analysed with the use of flow cytometry on day +30 (+/-2) after alloHCT from an HLA...
journal_title:Annals of transplantation
pub_type: 杂志文章
doi:
更新日期:2005-01-01 00:00:00
abstract::BACKGROUND Organ transplantation is one of the most critical topics in medical ethics that is commonplace in various countries. This study aimed to evaluate the knowledge and the ethical issues surrounding organ transplantation and organ donation among healthcare personnel in Tehran, Iran. MATERIAL AND METHODS In a cr...
journal_title:Annals of transplantation
pub_type: 杂志文章
doi:10.12659/AOT.908615
更新日期:2018-05-04 00:00:00
abstract:BACKGROUND:The impact of treated preoperative bacterial infections on the outcome of living-donor liver transplantation (LDLT) is not well defined. The aim of this study was to determine the frequency of pre-transplant bacterial infections within one month before LDLT and their impact on the post-transplant morbidity a...
journal_title:Annals of transplantation
pub_type: 杂志文章
doi:10.12659/AOT.892095
更新日期:2014-12-23 00:00:00
abstract:BACKGROUND:As newer immunosuppressive regimens have steadily reduced in the incidence of acute rejection and have extended the life expectancy of allograft recipients, posttransplant de novo malignancies have become an important cause of death in cadaveric donor transplantation. Also, according with the recent accumula...
journal_title:Annals of transplantation
pub_type: 杂志文章
doi:10.12659/aot.883230
更新日期:2012-04-01 00:00:00
abstract::BACKGROUND The prognosis of the patients of acute liver failure (ALF) with onset of hepatic coma is often dismal. ALF is a well-accepted indication for liver transplantation (LT) and has markedly improved the prognosis of these patients. However, its role in ALF patients with onset of hepatic coma has never been eluci...
journal_title:Annals of transplantation
pub_type: 杂志文章
doi:
更新日期:2018-03-13 00:00:00
abstract::The number of liver grafts obtained from a cadaver can be greatly increased with the application of split liver transplantation. In the last 10 years, pediatric waiting list mortality has been reduced significantly with the use of this form of liver transplantation, which has 2 major forms. In its most commonly used f...
journal_title:Annals of transplantation
pub_type: 杂志文章,评审
doi:10.12659/aot.896351
更新日期:2016-07-01 00:00:00
abstract::BACKGROUND Numerically, nurses represent the largest healthcare profession, thus setting norms for the quality and safety of direct patient care. Evidence of a global shortage of nurses in all clinical practice settings across different healthcare systems and countries has been documented. The aims of the present stud...
journal_title:Annals of transplantation
pub_type: 杂志文章,多中心研究
doi:10.12659/aot.898305
更新日期:2016-09-01 00:00:00
abstract:BACKGROUND:Data in kidney transplant recipients regarding elimination of calcineurin inhibitor (CNI) therapy from a de novo regimen based on low CNI exposure and an mTOR inhibitor are sparse, and restricted to CNI elimination within the first six months post-transplant. MATERIAL/METHODS:In a 12-month, randomized, mult...
journal_title:Annals of transplantation
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.12659/aot.882637
更新日期:2012-01-01 00:00:00
abstract:BACKGROUND:Achievement of sustained virological response (SVR) is the main goal of interferon/ribavirin (IFN/RBV) antiviral therapy in patients with hepatitis C virus (HCV) recurrence after orthotopic liver transplantation (OLT). In this study, we have retrospectively evaluated the efficacy and safety of low accelerati...
journal_title:Annals of transplantation
pub_type: 杂志文章
doi:10.12659/AOT.892255
更新日期:2015-05-11 00:00:00
abstract::BACKGROUND This study examined the attitude of patients' relatives in South Korea toward organ donation after brain death. MATERIAL AND METHODS A structured questionnaire was used to obtain the information on the attitude toward organ donation for relatives of patients who were admitted to the surgical intensive care ...
journal_title:Annals of transplantation
pub_type: 杂志文章
doi:10.12659/aot.906485
更新日期:2017-10-27 00:00:00
abstract::Solid organ transplantation program in Poland is very limited. The main reason of this is organ shortage. All the organs procured are transplanted. It is a general feeling that recently issued legal regulations will favorably influence organ donation, however the improvement may be expected within a few years and will...
journal_title:Annals of transplantation
pub_type: 杂志文章
doi:
更新日期:1996-01-01 00:00:00
abstract:BACKGROUND:This retrospective single-center study was undertaken to assess the occurrence of de novo neoplasms in renal transplant recipients according to the immunosuppressive regimen and time after transplantation. MATERIAL/METHODS:Observation encompassed 1028 patients transplanted between the years 1983-2006 and fo...
journal_title:Annals of transplantation
pub_type: 杂志文章
doi:
更新日期:2011-04-01 00:00:00
abstract::BACKGROUND Diffuse thrombosis of iliac veins and IVC has been considered a significant technical obstacle in pediatric kidney transplantation (KT). MATERIAL AND METHODS Between 1984 and 2018, 951 KTs were performed in our institution. In 4 children qualified for KT, diffuse thrombosis of iliac veins or IVC was found. T...
journal_title:Annals of transplantation
pub_type: 杂志文章
doi:10.12659/AOT.912657
更新日期:2019-01-11 00:00:00