Abstract:
BACKGROUND:Transplant surgeons rely on morphologic aspects of the organ as well as clinical and histologic data to decide whether to use a graft. Metabonomics measures the "downstream" products of proteins and genes; these metabolic profiles are particularly good reporters of tissue physiologic features. Sample preparation and data acquisition are generally considered limiting steps in metabonome analysis because they are important sources of variability. State-of-the-art mass spectrometry and multivariate statistical analysis have been used to explore the suitability of a metabonomic platform as a liver tissue metabonomic profiling method. OBJECTIVE:To develop robust and reliable sample processing and mass spectrometry protocols for studying human liver metabonomic profiles. MATERIALS AND METHODS:Liquid chromatography coupled with mass spectrometry was used to analyze 20 liver tissue samples from 10 discarded and 10 transplanted grafts. Principal component analysis (PCA) and projection to latent structures-discriminant analysis (PLS-DA) were used for data interpretation. RESULTS:Standard operating protocols for sample processing (tissue homogenization) and data acquisition were developed. The quantification of the quality controls present in the test mix demonstrated coefficients of variation less than 15%. The PCA score plot revealed that the sample triplicate cluster was quite close. Furthermore, PLS-DA analysis demonstrated a clear separation (transplanted vs discarded) along the first component. DISCUSSION:Multivariate data analysis (PCA and PLS-DA) indicated that protocols developed in-house for sample processing and mass spectrometry data acquisition were sufficiently sensitive (approximately 1245 features) and reproducible (sample triplicate clusters and test mix quantification) to perform liver tissue metabonomic profiling. In addition, a reduced set of metabolites was selected as potential biomarkers responsible for sample discrimination. These findings encourage ongoing research into the development of a metabonomic model to assess liver graft quality and function before transplantation.
journal_name
Transplant Procjournal_title
Transplantation proceedingsauthors
Cortés M,Pareja E,Castell JV,Moya A,Mir J,Lahoz Adoi
10.1016/j.transproceed.2010.07.049subject
Has Abstractpub_date
2010-10-01 00:00:00pages
2953-8issue
8eissn
0041-1345issn
1873-2623pii
S0041-1345(10)01094-8journal_volume
42pub_type
杂志文章abstract::Induction with thymoglobulin, a potent anti-thymocyte polyclonal antibody, has been recently reported to allow minimization of postoperative immunosuppression in organ transplantation. The relationship with recurrence of hepatitis C virus (HCV) after liver transplantation (LT) has never been investigated. We report he...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2005.06.070
更新日期:2005-07-01 00:00:00
abstract:BACKGROUND:Lung transplant remains the only viable treatment for certain patients with end-stage lung diseases. Such patients can become either single or double lung recipients. The 2 procedures are associated with specific risks and benefits. The aim of the study was to assess the survival of patients after lung trans...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2020.03.046
更新日期:2020-09-01 00:00:00
abstract::To elucidate the psychosocial aspects of the donors' decisions to engage in adult-to-adult living related liver transplantation, we interviewed a total of five institutional ethics committee members who had experience with reassessing informed consent prior to surgery. Qualitative analysis revealed several nuances of ...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2004.04.088
更新日期:2004-06-01 00:00:00
abstract::Fulminant hepatic failure (FHF) is often complicated with cerebral edema, intracranial hypertension, and coma. Cytotoxic and vasogenic factors have been recognized in the etiology of cerebral edema. One of the main causes seems to be the accumulation of glutamine in astrocytes, which is produced from ammonia and the e...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2006.01.040
更新日期:2006-04-01 00:00:00
abstract:BACKGROUND:The aim of this study was to identify predictors of overall survival (OS), disease-free survival (DFS), and recurrence in a cohort of 151 patients with hepatocellular carcinoma (HCC) and cirrhosis who were treated by liver transplantation (LT). PATIENTS AND METHODS:A retrospective database of patients under...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2016.04.002
更新日期:2016-07-01 00:00:00
abstract::A recent report noted that cyclosporine (CsA) inhibits replication of the hepatitis C virus (HCV) in vitro. Thus, CsA may be a superior immunosuppressant for renal transplant recipients infected with HCV. In the present retrospective study, we assessed whether CsA reduced the clinical impact of HCV infection among tho...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2006.10.134
更新日期:2006-12-01 00:00:00
abstract:INTRODUCTION:A prospective, randomized, multicenter, open clinical trial was performed to compare the main liver function tests, postoperative complications, and early graft and patient survival of recipients transplanted with livers preserved in Celsior (CEL) versus histidine tryptophan ketoglutarate (HTK) solutions. ...
journal_title:Transplantation proceedings
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/j.transproceed.2004.11.028
更新日期:2005-01-01 00:00:00
abstract:BACKGROUND:HLA alloimmunization is caused by sensitization events (SEs), such as transfusion, pregnancy, or previous organ transplantation, and the effects of particular SEs have not been thoroughly studied. Our aim was to evaluate how each SE affected HLA alloimmunization by considering Luminex assays. METHODS:Sera f...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2015.03.014
更新日期:2015-05-01 00:00:00
abstract:BACKGROUND:Renal angiography of a living donor is a common radiologic examination before transplantation. However, the contrast agent used during this procedure can cause contrast nephropathy. There are insufficient data regarding whether this radiocontrast exposure detoriates renal function and survival after transpla...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2012.01.122
更新日期:2012-06-01 00:00:00
abstract:UNLABELLED:Posttransplant diabetes mellitus (PTDM) is common post transplantation and is associated with tacrolimus (TAC) and steroid therapy. The aim of the present study was to analyze the incidences of PTDM and associated risk factors. METHODS:We selected renal transplant recipients treated with TAC, mycophenolate ...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2008.03.018
更新日期:2008-04-01 00:00:00
abstract:BACKGROUND:The main treatment modalities for chronic kidney disease (CKD) are dialysis and kidney transplantation. While kidney transplantation provides better survival and quality of life outcomes, it is a new treatment option in Ghana. Finding kidney donors for transplant may be a major challenge due to varied views ...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2020.02.165
更新日期:2020-12-01 00:00:00
abstract::The so-called learning factor has been disregarded for many years in analyzing the causes of surgical complications and post-operative mortality; it is also the case for OLT. In our center until April 2003, 209 OLT were performed in 196 patients. We evaluated the impact of experience of the transplantation team on the...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/s0041-1345(03)00834-0
更新日期:2003-09-01 00:00:00
abstract::Hepatic artery thrombosis (HAT), a serious complication after orthotopic liver transplantation (OLT), can lead to patient death in the absence of revascularization or retransplantation. Herein we have presented clinical characteristics, imaging findings, and long-term outcomes of 3 OLT patients with HAT who were treat...
journal_title:Transplantation proceedings
pub_type: 杂志文章,评审
doi:10.1016/j.transproceed.2012.09.002
更新日期:2012-11-01 00:00:00
abstract::This retrospective review presented the prevalence and manifestations of tuberculosis among renal transplant recipients in our center between 1987 and mid 2007. The prevalence of tuberculosis was 5/151 (3.3%) recipients with a median age of 49 years (range = 38-55). The median time of diagnosis after transplantation w...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2008.06.020
更新日期:2008-09-01 00:00:00
abstract::CD44 is a type I transmembrane glycoprotein serving as a cell adhesion receptor, whose main ligand is hyaluronic acid, but also may interact with collagen, laminin, fibronectin, and osteopontin. This marker is involved in cell migration, homing, activation, metastasis, and inflammation. Tubular CD44 expression has bee...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2003.11.010
更新日期:2004-01-01 00:00:00
abstract::Several groups have performed graft biopsies at set times posttransplant ("protocol biopsies") and found unequivocal histologic criteria for acute rejection in a high proportion of patients with stable graft function. The significance of "subclinical" rejection remains controversial. Our group and others have shown th...
journal_title:Transplantation proceedings
pub_type: 杂志文章,评审
doi:10.1016/j.transproceed.2003.12.051
更新日期:2004-03-01 00:00:00
abstract:INTRODUCTION:Kidney allocation should reach a balance between equity and efficiency. In Chile kidneys are allocated based on ABO matching, first to medical priorities and then according to a point scheme considering human leukocyte antigen (HLA) match (60%), waiting list time (20%), and panel-reactive antibodies (PRA; ...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2013.01.012
更新日期:2013-05-01 00:00:00
abstract:BACKGROUND:As the number of donated organs is still extremely small in Japan compared with other developed countries, in-hospital procurement transplant coordinators (In-Hp PTC) may play an important role in increasing organ donation and making the procurement procedure smoother. In this study, our education program of...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2014.06.017
更新日期:2014-07-01 00:00:00
abstract::The shortage of available cadaveric organs for transplantation and the growing demand has incresed live donation. To increase the number of transplantations from living donors, programs have been implemented to coordinate donations in direct or indirect form (cross-over, paired, and domino chain). Living donors with c...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2013.07.026
更新日期:2013-09-01 00:00:00
abstract:BACKGROUND:Approximately 20% of urinary tract fistulas after renal allografting are complicated by urinary tract infection, which presents a therapeutic challenge. OBJECTIVE:To evaluate an option for treatment of urinary tract fistulas associated with urinary tract infection and unsuitable for minimally invasive or pr...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2010.01.029
更新日期:2010-03-01 00:00:00
abstract::Living donor liver transplantation (LDLT) has been considered as an alternative option to resolve the shortage of cadaveric donor organs, despite the ethical aspects of the donor procedure. The objective of this study was to analyze the risk factors affecting graft survival in LDLT. From June 1996 to December 2002, 14...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2004.08.073
更新日期:2004-10-01 00:00:00
abstract:BACKGROUND:Accurate estimation of graft volume is crucial to avoid small-for-size syndrome following adult-to-adult living donor liver transplantation AALDLT). Herein, we combined radiological and mathematical approaches for preoperative assessment of right graft volume. METHODS:The right graft volume was preoperative...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2007.03.021
更新日期:2007-06-01 00:00:00
abstract:BACKGROUND:Thromboelastography (TEG) has been used perioperatively during liver transplantation (LT) to provide a real-time global hemostasis assessment for targeted blood product replacement. We aimed to analyze the relationship between post-LT TEG results and outcomes. METHODS:We retrospectively analyzed patients un...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2017.07.015
更新日期:2017-11-01 00:00:00
abstract:AIM:It has been reported that heme oxygenase-1 (HO-1) is upregulated during hepatocyte proliferation. Herein, we used a half-size liver transplantation (HSLT) model to study the impact of HO-1 on liver grafts proliferation. To the best of our knowledge, this is the first time that HO-1 has been characterized as a regul...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2019.11.051
更新日期:2020-04-01 00:00:00
abstract::Hepatic alveolar echinococcosis is an infectious disease caused by the larval stage of Echinococcus multilocularis, which grows primarily in the liver of an infected person and develops as a tumorlike lesion. In advanced cases, the organisms infiltrate every organ neighboring the liver and spread hematogenously to dis...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2009.07.022
更新日期:2009-09-01 00:00:00
abstract::Successful pancreas transplantation with systemic drainage is followed by a normalization of carbohydrate and lipid metabolism with low levels of plasma cholesterol and triglycerides. HDL cholesterol concentration and CETP plasma levels were found to be increased and the composition of lipoproteins altered in that LDL...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/s0041-1345(97)01439-5
更新日期:1998-03-01 00:00:00
abstract:BACKGROUND:Many living kidney donors are still at risk of chronic kidney disease (CKD) 1 year after nephrectomy. Although some donors still experience poor renal function, many exhibit delayed recovery of renal function afterwards. We studied the factors related to delayed recovery of renal function in patients with CK...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2018.01.038
更新日期:2018-05-01 00:00:00
abstract:OBJECTIVES:We describe our experience with infants suffering from interstitial pneumonia referred for lung transplantation. METHODS:From April 1998 to December 2000, three infants were admitted to our lung transplantation program: a 9-month-old girl (patient 1) suffering from surfactant protein C deficiency who had hi...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/s0041-1345(03)00665-1
更新日期:2003-08-01 00:00:00
abstract:INTRODUCTION:The aim of the study was to assess the impact of bacterial infection during hospital stay on long-term follow-up. MATERIALS AND METHODS:This was a retrospective single-center study of 97 recipients of lung transplantations performed between December 2004 and June 2016 at a single center. Information about...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2017.11.080
更新日期:2018-09-01 00:00:00
abstract::Most pancreas transplant centers initially use immunosuppression with antilymphocyte induction because the pancreas appears to be a highly immunogeneic organ. Although the addition of an antilymphocyte agent provides enhanced immunosuppression in the early posttransplant period, it is associated with added costs and a...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2005.11.027
更新日期:2005-12-01 00:00:00