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Renal biomarkers

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https://www.readbyqxmd.com/read/28230825/molecular-markers-of-apoptosis-in-cancer-patients-exposed-to-ionizing-radiation-the-post-chornobyl-view
#1
A A Philchenkov, E K Balcer-Kubiczek
During the past three decades, the deleterious consequences of Chornobyl accident including carcinogenic effects in the people who were accidentally exposed to radiation have been intensively studied. In particular, recent studies provided increased knowledge of the molecular pathogenesis of thyroid tumors in children exposed to Chornobyl fallout. The risk of several forms of leukemia including myelodysplastic syndromes is elevated in Chornobyl liquidators. Furthermore, the upward trends of increases in a variety of other tumors including breast cancer, cancers of central nervous system and renal cancer have been reported in the persons exposed to Chornobyl fallout...
December 2016: Experimental Oncology
https://www.readbyqxmd.com/read/28224821/lenvatinib-for-use-in-combination-with-everolimus-for-the-treatment-of-patients-with-advanced-renal-cell-carcinoma-following-one-prior-anti-angiogenic-therapy
#2
Aine O'Reilly, James Larkin
In patients with mRCC options for second line therapies, following progression on anti-angiogenic agents, that demonstrate a survival advantage in clinical trials have been limited. Recently a number of agents have demonstrated efficacy in this setting. Here in we profile one such therapy, the combination of lenvatinib and everolimus, and discuss the expanded options for therapy available in this setting. Areas covered: In this review, we discuss current algorithms for treatment of mRCC in both the first-line and second-line setting...
March 2017: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/28223273/pd-l1-studies-across-tumor-types-its-differential-expression-and-predictive-value-in-patients-treated-with-immune-checkpoint-inhibitors
#3
Harriet M Kluger, Christopher R Zito, Gabriela Turcu, Marina Baine, Hongyi Zhang, Adebowale Adeniran, Mario Sznol, David L Rimm, Yuval Kluger, Lieping Chen, Justine V Cohen, Lucia B Jilaveanu
PURPOSE: With recent approval of inhibitors of PD-1 in melanoma, non-small cell lung cancer (NSCLC) and renal cell carcinoma (RCC), extensive efforts are underway to develop biomarkers predictive of response. PD-L1 expression has been most widely studied, and is more predictive in NSCLC than RCC or melanoma. We therefore studied differences in expression patterns across tumor types. EXPERIMENTAL DESIGN: We employed tissue microarrays with tumors from NSCLC, RCC or melanoma and a panel of cell lines to study differences between tumor types...
February 21, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28223001/rethinking-ckd-evaluation-should-we-be-quantifying-basal-or-stimulated-gfr-to-maximize-precision-and-sensitivity
#4
Bruce A Molitoris
Chronic kidney disease (CKD) is an increasing clinical problem. Although clinical risk factors and biomarkers for the development and progression of CKD have been identified, there is no commercial surveillance technology to definitively diagnose and quantify the severity and progressive loss of glomerular filtration rate (GFR) in CKD. This has limited the study of potential therapies to late stages of CKD when FDA-registerable events are more likely. Because patient outcomes, including the rate of CKD progression, correlate with disease severity and effective therapy may require early intervention, being able to diagnose and stratify patients by their level of decreased kidney function early on is key for translational progress...
February 17, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28222921/relationships-between-left-ventricular-structure-and-function-according-to-cardiac-mri-and-cardiac-biomarkers-in-end-stage-renal-disease
#5
Bryan A Ross, Ron Wald, Marc B Goldstein, Darren A Yuen, Jonathon Leipsic, Mercedeh Kiaii, Andrea Rathe, Djeven P Deva, Anish Kirpalani, Olugbenga O Bello, John J Graham, Howard Leong-Poi, Kim A Connelly, Andrew T Yan
BACKGROUND: We sought to assess the relationships between left ventricular (LV) remodelling and the mechanical and uremic stressors in hemodialysis patients. METHODS: In this prospective 2-centre cohort study, 67 prevalent hemodialysis patients were followed for 1 year. Data on routine bloodwork and predialysis blood pressure (BP) measurements were collected over a 12-week period. LV end-diastolic volume (LVEDV) and LV mass (LVM) were measured using cardiac magnetic resonance imaging and indexed...
December 3, 2016: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28222690/ngal-expression-during-cardiopulmonary-bypass-does-not-predict-severity-of-postoperative-acute-kidney-injury
#6
Martin G Friedrich, Ioannis Bougioukas, Johanna Kolle, Christian Bireta, Fawad A Jebran, Marius Placzek, Theodor Tirilomis
BACKGROUND: Renal injury is a serious complication after cardiac surgery and therefore, early detection and much more prediction of postoperative kidney injury is desirable. Neutrophil gelatinase-associated lipocalin (NGAL) is a predictive biomarker of acute kidney injury and may increase after cardiopulmonary bypass (CPB). However, time correlation of NGAL expression and severity of renal injury is still unclear. The aim of our study was to investigate CPB-related urine NGAL (uNGAL) secretion in correlation to postoperative renal function...
February 21, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28222228/neutrophil-to-lymphocyte-ratio-a-biomarker-for-predicting-systemic-involvement-in-adult-iga-vasculitis-patients
#7
Géza Róbert Nagy, Lajos Kemény, Zsuzsanna Bata-Csörgő
BACKGROUND: IgA vasculitis (IgAV) is a small-vessel leucocytoclastic cutaneous vasculitis, often associated with kidney and gastrointestinal (GI) manifestations. Although predictive factors for systemic involvement have been extensively studied in children, there is paucity in the literature regarding adult patients. Neutrophil-to-lymphocyte ratio (NLR) is an inflammatory marker, used to assess systemic inflammation in various diseases. OBJECTIVE: We sought to evaluate whether NLR can be used for predicting renal and GI involvement in adult IgA vasculitis patients...
February 21, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28221174/iga-nephropathy-an-update
#8
Maria F Soares, Ian S D Roberts
PURPOSE OF REVIEW: To provide an update on recent developments since the publication of the Oxford Classification of IgA nephropathy and to consider lesions that were not included in the original classification. RECENT FINDINGS: Over 20 validation studies of the Oxford Classification have been published. Tubular atrophy/interstitial fibrosis is consistently the strongest predictor of renal survival, whereas mesangial hypercellularity predicts rate of loss of renal function...
February 17, 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/28221173/new-developments-in-transplant-proteomics
#9
Julie Ho, Patricia Hirt-Minkowski, John A Wilkins
PURPOSE OF REVIEW: Despite modern immunosuppression, renal allograft rejection remains a major contributor to graft loss. Novel biomarkers may help improve posttransplant outcomes through the early detection and treatment of rejection. Our objective is to provide an overview of proteomics, review recent discovery-based rejection studies, and explore innovative approaches in biomarker development. RECENT FINDINGS: Urine MMP7 was identified as a biomarker of subclinical and clinical rejection using two-dimensional liquid chromatography tandem-mass spectrometry (LC-MS/MS) and improved the overall diagnostic discrimination of urine CXCL10 : Cr alone for renal allograft inflammation...
February 17, 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/28220028/perspective-on-clinical-application-of-biomarkers-in-aki
#10
Chirag R Parikh, Sherry G Mansour
Several biomarkers of renal injury have been identified but the utility of these biomarkers is largely confined to research studies, whereas widespread clinical applicability is limited. This is partly because the use of serum creatinine as the comparator has several limitations and restricts the full interpretation of biomarker performance. To highlight the potential for clinical application of biomarkers, the most pertinent biomarker data are summarized here, using clinically relevant scenarios in which biomarkers could assist with diagnostic and management dilemmas...
February 20, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28219345/biomarkers-for-the-detection-of-renal-fibrosis-and-prediction-of-renal-outcomes-a-systematic-review
#11
Sherry G Mansour, Jeremy Puthumana, Steven G Coca, Mark Gentry, Chirag R Parikh
BACKGROUND: Fibrosis is the unifying pathway leading to chronic kidney disease. Identifying biomarkers of fibrosis may help predict disease progression. METHODS: We performed a systematic review to evaluate the reliability of blood and urine biomarkers in identifying fibrosis on biopsy as well as predicting renal outcomes. Using MEDLINE and EMBASE, a two-stage search strategy was implemented. Stage I identified a library of biomarkers correlating with fibrosis on biopsy...
February 20, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28217462/the-therapeutic-potential-of-hif-2-antagonism-in-renal-cell-carcinoma
#12
COMMENT
Olivier Cuvillier
Hypoxia, the insufficient delivery of oxygen for the demand of a tissue, contributes to the development of an aggressive phenotype, resistance to radiation therapy and chemotherapy, and is predictive of a poor outcome in numerous tumor types. Adaptation to hypoxia is mediated by hypoxia-inducible factors (HIFs), including HIF-1α and HIF-2α, which regulate genes promoting angiogenesis, increased tumor growth or metastasis. In kidney cancer, HIF-2α is believed to be the most important driver for development and progression of clear cell renal cell carcinoma (ccRCC), highlighting the therapeutic potential of HIF-2 antagonists in this disease...
February 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28216279/outcomes-and-drug-costs-of-sunitinib-regimens-for-metastatic-renal-cell-carcinoma-a-provincial-population-based-study
#13
Aleksi Suo, Urooj Iqbal, June Lim, Chel Lee, Kathy Gesy, Nayyer Iqbal, Tahir Abbas
BACKGROUND: Conventional sunitinib dosing in metastatic renal cell carcinoma (mRCC) administers 50 mg daily on a 4 weeks on/2 weeks off (4/2) schedule. Not all patients tolerate this regimen and many undergo modifications to schedule, dose, or both. MATERIAL AND METHODS: All patients with mRCC treated with sunitinib by the Saskatchewan Cancer Agency between January 1, 2006, and January 1, 2013, were included. Regimens were categorized as standard intermittent dosing (SID), modified intermittent schedule (MIS), modified intermittent dosing (MID), combination of modified schedule and dosing (MSD), or continuous dosing (CD)...
February 1, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28214834/kidney-injury-molecule-1-is-elevated-in-nephropathy-and-mediates-macrophage-activation-via-the-mapk-signalling-pathway
#14
Lei Tian, Xinghua Shao, Yuanyuan Xie, Qin Wang, Xiajing Che, Minfang Zhang, Weijia Xu, Yao Xu, Shan Mou, Zhaohui Ni
BACKGROUND/AIMS: Kidney injury molecule-1 (KIM-1) is highly expressed in renal tubular cells after injury and is usually regarded as an early biomarker of acute kidney injury(AKI). The aim of this study was to determine the role of KIM-1 in the development of renal tubular injury Methods: Clinical samples, three different animal models and in vitro experiments were utilized to determine the possible mechanism underlying the involvement of KIM-1 in kidney injury. RESULTS: Both plasma and urinary KIM-1 expression levels were significantly higher in AKI and chronic kidney disease (CKD) patients than in healthy volunteers, and urinary KIM-1 expression was significantly higher in CKD patients than in AKI patients...
February 13, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214792/suppression-of-tumorigenicity-2-in-heart-failure-with-preserved-ejection-fraction
#15
Omar F AbouEzzeddine, Paul M McKie, Shannon M Dunlay, Susanna R Stevens, G Michael Felker, Barry A Borlaug, Horng H Chen, Russell P Tracy, Eugene Braunwald, Margaret M Redfield
BACKGROUND: Soluble suppression of tumorigenicity 2 (sST2) receptor is a biomarker that is elevated in certain systemic inflammatory diseases. Comorbidity-driven microvascular inflammation is postulated to play a key role in heart failure with preserved ejection fraction (HFpEF) pathophysiology, but data on how sST2 relates to clinical characteristics or inflammatory conditions or biomarkers in HFpEF are limited. We sought to determine circulating levels and clinical correlates of sST2 in HFpEF...
February 18, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28213903/specifics-of-fetuin-a-levels-in-distinct-types-of-chronic-heart-failure
#16
Michael Lichtenauer, Bernhard Wernly, Vera Paar, Ilonka Rohm, Christian Jung, Atilla Yilmaz, Uta C Hoppe, Paul Christian Schulze, Daniel Kretzschmar, Rudin Pistulli
INTRODUCTION: Fetuin-A has been described to correlate inversely with vascular calcification both in animal models but also in patients with heart and renal disease. In this current study, we sought to investigate whether fetuin-A might be a useful marker for the discrimination of ischemic (ICM) from dilated cardiomyopathy (DCM). METHODS: A total of 124 non-consecutive patients were included in this study, 59 patients suffered from ICM and 65 patients from DCM. Serum samples were obtained during out-patient visits and analyzed for fetuin-A by ELISA...
February 18, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28213859/recurrence-in-localized-renal-cell-carcinoma-a-systematic-review-of-contemporary-data
#17
REVIEW
Jacqueline M Speed, Quoc-Dien Trinh, Toni K Choueiri, Maxine Sun
PURPOSE OF REVIEW: Patients with localized renal cell carcinoma (RCC) are at risk of recurrence. The purpose of this review was to characterize the literature on recurrence rates and risk factors after diagnosis of localized RCC. RECENT FINDINGS: Our search revealed that existing data examining the prevalence of recurrence rates predominantly originates from cohorts of patients diagnosed and treated in the 1980s to 1990s, and may therefore not be as useful for counseling for current patients today...
February 2017: Current Urology Reports
https://www.readbyqxmd.com/read/28213568/estimated-glomerular-filtration-rate-and-albuminuria-are-associated-with-biomarkers-of-cardiac-injury-in-a-population-based-cohort-study-the-maastricht-study
#18
Remy J H Martens, Dorien M Kimenai, Jeroen P Kooman, Coen D A Stehouwer, Frans E S Tan, Otto Bekers, Pieter C Dagnelie, Carla J H van der Kallen, Abraham A Kroon, Karel M L Leunissen, Frank M van der Sande, Nicolaas C Schaper, Simone J S Sep, Miranda T Schram, Jeroen D van Suijlen, Marja P van Dieijen-Visser, Steven J R Meex, Ronald M A Henry
BACKGROUND: Chronic kidney disease (CKD) is associated with an increased cardiovascular disease mortality risk. It is, however, less clear at what point in the course from normal kidney function to CKD the association with cardiovascular disease appears. Studying the associations of estimated glomerular filtration rate (eGFR) and albuminuria with biomarkers of (subclinical) cardiac injury in a population without substantial CKD may clarify this issue. METHODS: We examined the cross-sectional associations of eGFR and urinary albumin excretion (UAE) with high-sensitivity cardiac troponin (hs-cTn) T, hs-cTnI, and N-terminal probrain natriuretic-peptide (NT-proBNP) in 3103 individuals from a population-based diabetes-enriched cohort study...
February 17, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28213366/tumor-infiltrating-and-peripheral-blood-t-cell-immunophenotypes-predict-early-relapse-in-localized-clear-cell-renal-cell-carcinoma
#19
Nicolas A Giraldo, Etienne Becht, Yann Vano, Florent Petitprez, Laetitia Lacroix, Pierre Validire, Rafael Sanchez-Salas, Alexandre Ingels, Stephane Marie Oudard, Audrey Moatti, Bénédicte Buttard, Sarah Bourras, Claire Germain, Xavier Cathelineau, Wolf-Herman Fridman, Catherine Sautes-Fridman
PURPOSE: The efficacy of PD-1 Checkpoint Blockade (ChB) as adjuvant therapy in localized clear cell Renal Cell Carcinoma (ccRCC) is currently unknown. The identification of tumor microenvironment (TME) prognostic biomarkers in this setting may help to define which patients could benefit from ChB and to uncover new therapeutic targets. EXPERIMENTAL DESIGN: We performed multiparametric flow cytometry immunophenotypic analysis of T cells isolated from tumor tissue (TIL), adjacent non-malignant renal tissue (RIL) and peripheral blood (PBL), in a cohort of patients (n=40) with localized ccRCC...
February 17, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28212922/organ-specific-biomarkers-in-lupus
#20
REVIEW
Haijing Wu, Jinrong Zeng, Ming Zhao, Qianjin Lu
Systemic lupus erythematosus (SLE) is a complex and highly heterogeneous disease, which affects multiple organs, including joints, skin, kidneys, heart, hematopoietic system, and nerve system. While the etiopathogenesis of SLE still remains unclear, genetic susceptibilities and aberrant epigenetic modifications are believed to be involved. For precision therapy, it is necessary to assess accurately and objectively organ involvements and disease activity, which is difficult by current clinical laboratory tests...
February 14, 2017: Autoimmunity Reviews
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