scholarly journals Liver Function Enzymes are Potential Predictive Markers for Kidney Allograft Dysfunction

2020 ◽  
Vol 2 (1) ◽  
Keyword(s):  
Liver Function ◽  
Estimated Glomerular Filtration Rate ◽  
Serum Alkaline Phosphatase ◽  
Serum Biomarkers ◽  
Kidney Allograft ◽  
Individual Level ◽  
Allograft Dysfunction ◽  
Allograft Biopsy ◽  
Allograft Function ◽  
Pearson Correlations

Introduction: Biopsy of the allograft is the gold standard for assessing kidney allograft dysfunction. The aim of our pilot study was to identify serum biomarkers that could obviate the need for biopsy. Materials and Methods: We conducted a study to identify the biomarkers in the serum from different groups of chronic kidney disease (CKD) patients and kidney transplanted patients vs. healthy individuals. The four groups (n=25 in each group) were as follows: 1) Patients with unstable kidney allograft transplants requiring biopsy for cause, 2) Patients with stable kidney allograft transplants, 3) Patients with CKD not on immunosuppressive therapy and, 4) healthy subjects. We measured the activity and level of serum alkaline phosphatase (ALP) and other liver enzymes (alanine transaminase (ALT) and aspartate transaminase (AST)) as potential serum biomarkers in acute allograft dysfunction. Results: We found that ALP correlated with allograft biopsy findings, liver function, and clinical outcomes and possibly graft survival. Additionally, AST and ALT were higher in patients with graft rejection compared to non-rejected and stable kidney transplants. Moreover, the low Pearson correlations (r- values) between ALP level with age (r=0.179), gender, body mass index (r=0.236), creatinine (r=0.044) or estimated glomerular filtration rate (r=0.048) suggest that ALP may be an independent biomarker which is relatively unaffected by other individual-level variables. Conclusion: ALP may be a putative biomarker to predict kidney allograft function and rejection. Data also indicated that liver function plays an important role for the overall success of kidney transplantation.

scholarly journals Shear-Wave Elastography Variability Analysis and Relation with Kidney Allograft Dysfunction: A Single-Center Study

Diagnostics ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 41
Author(s):  
Sorana D. Bolboacă ◽  
Florin Ioan Elec ◽  
Alina Daciana Elec ◽  
Adriana Milena Muntean ◽  
Mihai Adrian Socaciu ◽  
...  
Keyword(s):  
Shear Wave ◽  
Shear Wave Elastography ◽  
Interquartile Range ◽  
P Value ◽  
Single Center ◽  
Tissue Stiffness ◽  
Kidney Allograft ◽  
Stable Function ◽  
Allograft Dysfunction ◽  
Allograft Function

Shear-wave elastography (SWE) showed the absence or presence of significant differences among stable kidney allograft function and allograft dysfunction. We evaluated the variability of kidney allograft stiffness in relation to allograft dysfunction, respectively, in terms of a correlation of stiffness with patients’ characteristics. A single-center prospective study on patients who had undergone renal transplantation was conducted between October 2017 and November 2018. Patients were clinically classified as having a stable allograft function or allograft dysfunction. SWE examinations performed by the same radiologist with a LOGIQ E9 were evaluated. Ten measurements were done for Young’s modulus (kPa) at the level of allograft cortex and another ten at the level of medulla. Eighty-three SWE examinations from 63 patients, 69 stable allografts, and 14 allografts with dysfunction were included in the analysis. The intra-examinations stiffness showed high variability, with the quantile covariation coefficient ranging from 2.21% to 45.04%. The inter-examinations stiffness showed heterogeneity (from 28.66% to 42.38%). The kidney allograft cortex stiffness showed significantly higher values in cases with dysfunction (median = 28.70 kPa, interquartile range (IQR) = (25.68–31.98) kPa) as compared to those with stable function (median = 20.99 kPa, interquartile range = (16.08–27.68) kPa; p-value = 0.0142). Allograft tissue stiffness (both cortex and medulla) was significantly negatively correlated with body mass index (−0.44, p-value < 0.0001 for allograft cortex and −0.42, p-value = 0.0001 for allograft medulla), and positively correlated with Proteinuria/Creatinuria ratio (0.33, p-value = 0.0021 for allograft cortex and 0.28, p-value = 0.0105 for allograft medulla) but remained statistically significant only in cases with stable function. The cortical tissue stiffness proved significantly higher values for patients with allograft dysfunction as compared to patients with stable function, but to evolve as an additional tool for the evaluation of patients with a kidney transplant and to change the clinical practice, more extensive studies are needed.

Fibrous Intimal Thickening at Implantation Adversely Affects Long-Term Kidney Allograft Function

2009 ◽  
Vol 87 (1) ◽  
pp. 72-78 ◽  
Author(s):  
Annemie T. Woestenburg ◽  
Gert A. Verpooten ◽  
Dirk K. Ysebaert ◽  
Eric A. Van Marck ◽  
Dierik Verbeelen ◽  
...  
Keyword(s):  
Intimal Thickening ◽  
Kidney Allograft ◽  
Allograft Function

scholarly journals Preservation of epoxyeicosatrienoic acid bioavailability prevents renal allograft dysfunction and cardiovascular alterations in kidney transplant recipients

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Thomas Duflot ◽  
Charlotte Laurent ◽  
Anne Soudey ◽  
Xavier Fonrose ◽  
Mouad Hamzaoui ◽  
...  
Keyword(s):  
Endothelial Function ◽  
Kidney Transplant ◽  
Plasma Levels ◽  
Renal Allograft ◽  
Transplant Recipients ◽  
Loss Of Function ◽  
Kidney Transplant Recipients ◽  
Allograft Dysfunction ◽  
Allograft Function ◽  
The Impact

AbstractThis study addressed the hypothesis that epoxyeicosatrienoic acids (EETs) synthesized by CYP450 and catabolized by soluble epoxide hydrolase (sEH) are involved in the maintenance of renal allograft function, either directly or through modulation of cardiovascular function. The impact of single nucleotide polymorphisms (SNPs) in the sEH gene EPHX2 and CYP450 on renal and vascular function, plasma levels of EETs and peripheral blood monuclear cell sEH activity was assessed in 79 kidney transplant recipients explored at least one year after transplantation. Additional experiments in a mouse model mimicking the ischemia–reperfusion (I/R) injury suffered by the transplanted kidney evaluated the cardiovascular and renal effects of the sEH inhibitor t-AUCB administered in drinking water (10 mg/l) during 28 days after surgery. There was a long-term protective effect of the sEH SNP rs6558004, which increased EET plasma levels, on renal allograft function and a deleterious effect of K55R, which increased sEH activity. Surprisingly, the loss-of-function CYP2C9*3 was associated with a better renal function without affecting EET levels. R287Q SNP, which decreased sEH activity, was protective against vascular dysfunction while CYP2C8*3 and 2C9*2 loss-of-function SNP, altered endothelial function by reducing flow-induced EET release. In I/R mice, sEH inhibition reduced kidney lesions, prevented cardiac fibrosis and dysfunction as well as preserved endothelial function. The preservation of EET bioavailability may prevent allograft dysfunction and improve cardiovascular disease in kidney transplant recipients. Inhibition of sEH appears thus as a novel therapeutic option but its impact on other epoxyfatty acids should be carefully evaluated.

scholarly journals Early Kidney Allograft Dysfunction (Threatened Allograft)

2016 ◽  
Vol 2 (9) ◽  
pp. e98
Author(s):  
Ravinder K. Wali ◽  
Heather A. Prentice ◽  
Venkata Reddivari ◽  
Geroge Baffoe-Bonnie ◽  
Cinthia I. Drachenberg ◽  
...  
Keyword(s):  
Kidney Allograft ◽  
Allograft Dysfunction

scholarly journals High urinary interleukin-2 in late post-transplant period portends a risk of decline in kidney allograft function: a preliminary study

2017 ◽  
Vol 10 (1) ◽  
Author(s):  
Andriy V. Trailin ◽  
Marina V. Pleten ◽  
Tetyana I. Ostapenko ◽  
Nadiia F. Iefimenko ◽  
Olexandr S. Nykonenko
Keyword(s):  
Interleukin 2 ◽  
Kidney Allograft ◽  
Post Transplant ◽  
Allograft Function ◽  
Preliminary Study

Adverse effect of donor vasopressor support on immediate and one-year kidney allograft function

Surgery ◽  
1996 ◽  
Vol 120 (4) ◽  
pp. 663-666 ◽  
Author(s):  
Renee marshall ◽  
Nasimul Ahsan ◽  
Saleena Dhillon ◽  
Michael Holman ◽  
Harold C. Yang
Keyword(s):  
Adverse Effect ◽  
Kidney Allograft ◽  
Vasopressor Support ◽  
Allograft Function ◽  
One Year

scholarly journals The Cytomegalovirus-Specific IL-21 ELISpot Correlates with Allograft Function of Kidney Transplant Recipients

2018 ◽  
Vol 19 (12) ◽  
pp. 3945 ◽  
Author(s):  
Monika Lindemann ◽  
Johannes Korth ◽  
Ming Sun ◽  
Shilei Xu ◽  
Christoph Struve ◽  
...  
Keyword(s):  
Kidney Transplant ◽  
Estimated Glomerular Filtration Rate ◽  
Transplant Recipients ◽  
Kidney Transplant Recipients ◽  
Flow Cytometric Data ◽  
Flow Cytometric ◽  
Allograft Function ◽  
Ifn Γ ◽  
Cellular Immune

In kidney transplant recipients, the cytomegalovirus (CMV) is frequently causing infection/reactivation and can trigger allograft rejection. To assess the risk of reactivation, the cellular immune response against CMV is increasingly assessed by cellular in vitro methods, such as the interferon (IFN)-γ ELISpot. In the current study we compared the IFN-γ ELISpot with our newly established CMV-specific ELISpot assays determining IL-17A, IL-21, IL-22, granzyme B, and perforin and correlated the results with flow cytometric data and clinical parameters. In 77 kidney transplant recipients, the highest frequency was observed for CMV pp65-specific cells secreting IFN-γ, followed by cells secreting IL-21 (62.9 and 23.2 Δ spot forming cells/105 cells). We observed a positive correlation between the percentage of CMV-specific CD3+ CD4+ CD154+ cells and results of the CMV-specific IL-21 ELISpot (p = 0.002). Results of the CMV pp65-specific IL-21 ELISpot correlated negatively with kidney function (estimated glomerular filtration rate, p = 0.006) and were significantly higher in women (p = 0.005). IL-21, a cytokine involved in aging that is secreted by activated CD4+ T cells, may also impact on allograft function. Thus, the CMV-specific IL-21 ELISpot could become a new tool to assess if CMV seropositivity represents a hazard for the graft.

scholarly journals Pre-Transplant Histological Assessment Provides a Useful Predictor of Subsequent Kidney Allograft Function

2018 ◽  
Vol 102 ◽  
pp. S340-S341
Author(s):  
Adam Brayne ◽  
Patrick Trotter ◽  
Daniel Hart ◽  
Gavin Pettigrew ◽  
Menna Clatworthy
Keyword(s):  
Kidney Allograft ◽  
Histological Assessment ◽  
Allograft Function

scholarly journals P1639DEVELOPMENT OF SELF-LIMITED LOW-LEVEL BK VIREMIA/VIRURIA SUGGESTS IDEAL IMMUNOSUPPRESSION TO SUPPRESS T-CELL AND ANTIBODY-MEDIATED REJECTION AND PRESERVE KIDNEY ALLOGRAFT FUNCTION

2020 ◽  
Vol 35 (Supplement_3) ◽  
Author(s):  
Bettina Näf ◽  
Thomas Müller ◽  
Rudolf Peter Wuthrich ◽  
Thomas Schachtner
Keyword(s):  
Lower Incidence ◽  
De Novo ◽  
Allograft Survival ◽  
Kidney Allograft ◽  
Low Level ◽  
Antibody Mediated Rejection ◽  
Maintenance Immunosuppression ◽  
Allograft Function ◽  
High Level ◽  
Egfr Slope

Abstract Background and Aims Polyomavirus BK (BKV) viremia has been suggested as a surrogate marker of overimmunosuppression. Due to recent advances in monitoring strategies and pre-emptive therapy, progression to BKV-associated nephropathy (BKVN) has been reduced. Reduction of maintenance immunosuppression during BKVN, however, has been associated with both T-cell mediated rejection (TCMR), antibody-mediated rejection (ABMR), and inferior kidney allograft outcomes. Although the administration of intravenous immunoglobulins (IVIG) failed to treat BKVN, IVIG may have properties to reduce allosensitization. Method We studied 860 kidney transplant recipients (KTRs) predominantly under tacrolimus-based triple-drug maintenance immunosuppression from 2009 to 2018. We identified 130 KTRs (15.1%) with high-level BK viremia &gt;10,000 copies/mL (presumptive BKVN), 180 KTRs (20.9%) with low-level BK viremia &lt;10,000 copies/mL, 85 KTRs (9.9%) with isolated BK viruria, and 465 KTRs (54.1%) with no BK viruria/viremia. Kidney allograft outcomes with respect to TCMR, ABMR, development of de novo donor-specific antibodies (DSA), kidney allograft survival, and estimated glomerular filtration rate (eGFR) slope were analysed. Due to the increased incidence of TCMR and ABMR among KTRs with presumptive BKVN, 48 of 130 KTRs (36.9%) with high-level BK viremia starting from 2015 received IVIG (0.5 g/kg of body weight) on a biweekly basis during BKV replication. Results Very interestingly, KTRs with low-level BK viremia/viruria showed a significantly lower incidence of TCMR compared to KTRs with no BK viremia/viruria and KTRs with high-level BK viremia (p&lt;0.05). In addition, KTRs with low-level BK viremia/viruria showed a significantly lower incidence of ABMR compared to KTRs with high-level BK viremia (p&lt;0.05). No differences were observed with respect to the development of de novo DSA (MFI&gt;5000) between KTRs with low-level BK viremia/viruria, KTRs with no BK viremia/viruria, and KTRs with high-level BK viremia (p&gt;0.05). KTRs with low-level BK viremia/viruria showed superior kidney allograft survival and lower eGFR slope compared to KTRs with no BK viremia/viruria and KTRs with high-level BK viremia (p&lt;0.05). The administration of IVIG during high-level BK viremia didn’t impact the development of TCMR, ABMR, development of de novo DSA, eGFR slope, and kidney allograft survival (p&lt;0.05). Conclusion Our results show that low-level BK viremia/viruria is associated with suppression of TCMR and ABMR in the early period posttransplantation, and preservation of kidney allograft function in the long-term. The administration of IVIG didn’t prove beneficial to reduce allosensitization among KTRs with high-level BK viremia.

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