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Kidney biomarkers

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https://www.readbyqxmd.com/read/29145491/the-urine-biomarker-panel-igfbp7-x-timp-2-nephrocheck%C3%A2-parameter-does-not-correlate-with-igfbp7-and-timp-2-gene-expression-in-urinary-sediment
#1
Daniela Knafl, Markus Müller, Sahra Pajenda, Zeynep Genc, Manfred Hecking, Ludwig Wagner
BACKGROUND: Acute kidney injury (AKI) is frequently observed in serious infections, following nephrotoxic medication, surgery and trauma. Here we tested whether the detection of two recently identified biomarkers for AKI, Tissue Inhibitor of Metalloproteinase-2 (TIMP-2) and Insulin-Like Growth Factor Binding Protein 7 (IGFBP7), depends on the expression of these proteins in cells of the urinary sediment. METHOD: We collected urine samples of 33 kidney transplant recipients and 14 non-transplanted patients who all had AKI (stages 1-3 according to KDIGO), and measured [IGFBP7]x[TIMP-2] using the NephroCheck® Astute1 40 ™ meter...
2017: PloS One
https://www.readbyqxmd.com/read/29143991/genetic-and-non-genetic-risk-factors-for-pre-eclampsia-an-umbrella-review-of-systematic-reviews-and-meta-analyses-of-observational-studies
#2
REVIEW
Konstantinos Giannakou, Evangelos Evangelou, Stefania I Papatheodorou
OBJECTIVE: To summarize evidence from the literature on the risk factors associated with preeclampsia, assess the presence of statistical biases and identify associations with robust evidence. METHODS: We searched PubMed and ISI Web of Science from inception to October, 2016, to identify systematic reviews and meta-analyses of observational studies examining associations between genetic and non-genetic risk factors for preeclampsia. For each meta-analysis we estimated the summary effect size by random-effects and fixed-effects models, the 95% confidence interval and the 95% prediction interval...
November 16, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29142972/a-drug-development-tool-for-trial-enrichment-in-patients-with-autosomal-dominant-polycystic-kidney-disease
#3
Ronald D Perrone, Mohamad-Samer Mouksassi, Klaus Romero, Frank S Czerwiec, Arlene B Chapman, Berenice Y Gitomer, Vicente E Torres, Dana C Miskulin, Steve Broadbent, Jean F Marier
Introduction: Total kidney volume (TKV) is a promising imaging biomarker for tracking and predicting the natural history of patients with autosomal dominant polycystic kidney disease. Methods: A drug development tool was developed by linking longitudinal TKV measurements to the probability of a 30% decline of estimated glomerular filtration rate (eGFR) or end-stage renal disease. Drug development tools were developed based on observational data collected over multiple decades for an eGFR decline and end-stage renal disease in 641 and 866 patients with autosomal dominant polycystic kidney disease, respectively...
May 2017: KI Reports
https://www.readbyqxmd.com/read/29142971/total-kidney-volume-is-a-prognostic-biomarker-of-renal-function-decline-and-progression-to-end-stage-renal-disease-in%C3%A2-patients-with-autosomal-dominant-polycystic-kidney-disease
#4
Ronald D Perrone, Mohamad-Samer Mouksassi, Klaus Romero, Frank S Czerwiec, Arlene B Chapman, Berenice Y Gitomer, Vicente E Torres, Dana C Miskulin, Steve Broadbent, Jean F Marier
Introduction: Autosomal dominant polycystic kidney disease is the most common hereditary kidney disease. TKV is a promising imaging biomarker for tracking and predicting the natural history of autosomal dominant polycystic kidney disease. The prognostic value of TKV was evaluated, in combination with age and eGFR, for the outcomes of 30% decline in eGFR and progression to ESRD. Observational data including 2355 patients with TKV measurements were available. Methods: Multivariable Cox models were developed to assess the prognostic value of age, TKV, height-adjusted TKV, eGFR, sex, race, and genotype for the probability of a 30% decline in eGFR or ESRD...
May 2017: KI Reports
https://www.readbyqxmd.com/read/29142970/cardiovascular-disease-biomarkers-and-supar-in-predicting-decline-in-renal-function-a-prospective-cohort-study
#5
Salim S Hayek, Yi-An Ko, Mosaab Awad, Hina Ahmed, Brandon Gray, Kareem Mohammed Hosny, Hiroshi Aida, Melissa J Tracy, Changli Wei, Sanja Sever, Jochen Reiser, Arshed A Quyyumi
Introduction: Soluble urokinase-type plasminogen activator receptor (suPAR) strongly predicts outcomes and incident chronic kidney disease (CKD) in patients with cardiovascular disease (CVD). Whether the association between suPAR and CKD is a reflection of its overall association with chronic inflammation and poor CVD outcomes is unclear. We examined whether CVD biomarkers, including high-sensitivity C-reactive protein (hs-CRP), fibrin-degradation products (FDPs), heat-shock protein 70 (HSP-70), and high-sensitivity troponin I (hs-TnI) were associated with a decline in kidney function in the Emory Cardiovascular Biobank cohort, in which suPAR levels were shown to be predictive of both incident CKD and CVD outcomes...
May 2017: KI Reports
https://www.readbyqxmd.com/read/29142952/serum-ngal-and-cystatin-c-comparison-with-urinary-albumin-to-creatinine-ratio-and-inflammatory-biomarkers-as-early-predictors-of-renal-dysfunction-in-patients-with-type-2-diabetes
#6
Marcelo R Bacci, Ethel Z Chehter, Ligia A Azzalis, Beatriz Costa de Aguiar Alves, Fernando L A Fonseca
Introduction: Diabetic nephropathy is associated with specific histological changes. Early detection of poor glomerular and tubular function can be achieved with biomarkers of diabetes. The aim of this study was to evaluate the accuracy of kidney dysfunction biomarkers in type 2 diabetes (T2D). Methods: Patients with T2D were grouped according to their glycated hemoglobin level. Patients' urine and blood samples were taken to measure cystatin C (CysC), neutrophil gelatinase-associated lipocalin, beta-trace protein levels, and the first morning void albumin-to-creatinine ratio...
March 2017: KI Reports
https://www.readbyqxmd.com/read/29141564/a-review-on-the-management-of-small-renal-masses-active-surveillance-versus-surgery
#7
Giancarlo Marra, Marco Oderda, Marco Allasia, Stefania Munegato, Steven Joniau, Paolo Gontero
Despite the rise of small renal tumour (SRMs) diagnosis and related surgeries, death rate of kidney cancer is increasing, suggesting a non-optimal management of SRMs. Active Surveillance (AS) for kidney cancer was introduced to face this paradox. However, incertitude remains on whether and when AS can replace surgery in selected patients. We performed a literature search, reviewed and discussed the evidence in favour of AS or surgery for SRMs. Histopathology and natural history of SRMs, including the percentage of benign tumours amongst SRMs, tumour growth rate, life expectancy of SRMs patients being generally older, and current results of AS series seem to support its use in selected groups...
November 13, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/29141366/-in-vitro-early-detection-of-amyloid-plaques-in-alzheimer-s-disease-by-pittsburgh-compound-b-modified-magnetic-nanoparticles
#8
J Q Zeng, J Q Wu, M H Li, P J Wang
Objective: To construct magnetic nanoparticles targeting β-amyloid (Aβ) plaques, the pathological biomarker of Alzheimer's disease (AD) and to study their binding capability in vitro. Methods: Superparamagnetic nanoparticles Mn(0.6)Zn(0.4)Fe(2)O(4) (MZF) were coated with amphiphilic star-block copolymeric micelles and modified with Aβ-specific probe Pittsburgh compound B (PiB) to construct a novel magnetic nanoparticle MZF-PiB, which specifically targeted amyloid plaques. Transmission electron microscope was used to study the morphological features of MZF-PiB...
November 7, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29137331/hdac-inhibitors-enhance-the-immunotherapy-response-of-melanoma-cells
#9
Laurence Booth, Jane L Roberts, Andrew Poklepovic, John Kirkwood, Paul Dent
We focused on the ability of the pan-histone deacetylase (HDAC) inhibitors AR42 and sodium valproate to alter the immunogenicity of melanoma cells. Treatment of melanoma cells with HDAC inhibitors rapidly reduced the expression of multiple HDAC proteins as well as the levels of PD-L1, PD-L2 and ODC, and increased expression of MHCA. In a cell-specific fashion, melanoma isolates released the immunogenic protein HMGB1 into the extracellular environment. Very similar data were obtained in ovarian and H&NSCC PDX isolates, and in established tumor cell lines from the lung and kidney...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29136750/-a-perspective-cohort-study-on-influence-factors-of-survival-outcome-among-the-elderly-aged-%C3%A2-80-years-old-from-longevity-areas-in-china
#10
Y B Lyu, J Zhang, J S Luo, W H Shi, Z X Yin, L Q Su, J L Fang, J N Wang, X M Shi
Objective: To investigate the influence factors of survival outcome among elderly aged ≥80 years old. Methods: In baseline survey in 2009, 930 participants aged ≥80 years old were enrolled from 7 longevity areas, to collect the information of socioeconomic factors, life style, cognitive function, activities of daily living and diseases, as well as physical examination to test biomarkers of blood and urine. The survival status was followed up at 2012 and 2014 survey. Stepwise Cox proportional hazards models were used to screen influence factors of 5-year survival...
November 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/29136189/serum-omega-3-fatty-acids-and-treatment-outcomes-among-women-undergoing-assisted-reproduction
#11
Y-H Chiu, A E Karmon, A J Gaskins, M Arvizu, P L Williams, I Souter, B R Rueda, R Hause, J E Chavarro
STUDY QUESTION: Are serum polyunsaturated fatty acids (PUFA) concentrations, including omega-3 (ω3-PUFA) and omega-6 (ω6-PUFA), related to ART outcomes? SUMMARY ANSWER: Serum levels of long-chain ω3-PUFA were positively associated with probability of live birth among women undergoing ART. WHAT IS KNOWN ALREADY: Intake of ω3-PUFA improves oocyte and embryo quality in animal and human studies. However, a recent cohort study found no relation between circulating ω3-PUFA levels and pregnancy rates after ART...
November 10, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29136041/profiling-analysis-of-circulating-microrna-in-peripheral-blood-of-patients-with-class-iv-lupus-nephritis
#12
Elkin Navarro-Quiroz, Lisandro Pacheco-Lugo, Roberto Navarro-Quiroz, Hernan Lorenzi, Pierine España-Puccini, Yirys Díaz-Olmos, Lisneth Almendrales, Valeria Olave, Henry Gonzalez-Torres, Anderson Diaz-Perez, Alex Dominguez, Antonio Iglesias, Raul García, Gustavo Aroca-Martinez
Renal involvement in Systemic Lupus Erythematous (SLE) patients is one of the leading causes of morbidity and a significant contributor to mortality. It's estimated that nearly 50% of SLE individuals develop kidney disease in the first year of the diagnosis. Class IV lupus nephritis (LN-IV) is the class of lupus nephritis most common in Colombian patients with SLE. Altered miRNAs expression levels have been reported in human autoimmune diseases including lupus. Variations in the expression pattern of peripheral blood circulating miRNAs specific for this class of lupus nephritis could be correlated with the pathophysiological status of this group of individuals...
2017: PloS One
https://www.readbyqxmd.com/read/29135410/tissue-based-molecular-markers-in-upper-tract-urothelial-carcinoma-and-their-prognostic-implications
#13
Ricardo L Favaretto, Stênio C Zequi, Renato A R Oliveira, Thiago Santana, Walter H Costa, Isabela W Cunha, Gustavo C Guimarães
Upper tract urothelial carcinoma (UTUC) is a rare and aggressive disease that is associated with high rates of recurrence and death. Radical nephroureterectomy (RNU) with excision of the bladder cuff is considered the standard of care for high-risk UTUC, whereas kidney-sparing techniques can be indicated for select patients with low-risk disease. There is a significant lack of clinical and pathological prognostic factors for stratifying patients with regard to making treatment decisions. Incorporation of tissue-based molecular markers into prognostic tools could help accurately stratify patients for clinical decision-making in this heterogeneous disease...
November 17, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/29135142/-investigation-of-serum-cysteine-concentration-to-monitor-glomerular-filtration-rate-for-early-diagnosis-of-acute-kidney-injury-in-patients-with-combined-trauma
#14
I A Miziev, M Kh Makhov
AIM: / To determine the early diagnostic criteria for acute kidney injury in patients with combined trauma using serum cystatin C as a biomarker in the diagnostic work-up of the affected patients. MATERIALS AND METHODS: / The study comprised 42 patients who suffered combined trauma from 2015 to 2016. Cystatin C level was measured in serum. Blood sampling was done on the 1st, 3rd, 7th, 14th day of the injury. The patients were predominantly men (80%). Renal function was tested by measuring the rate of filtration and reabsorption using the Reberg-Tareev test...
October 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/29133918/fast-simultaneous-assessment-of-renal-and-liver-function-using-polymethine-dyes-in-animal-models-of-chronic-and-acute-organ-injury
#15
A T Press, M J Butans, T P Haider, C Weber, S Neugebauer, M Kiehntopf, U S Schubert, M G Clemens, M Bauer, A Kortgen
Simultaneous assessment of excretory liver and kidney function is still an unmet need in experimental stress models as well as in critical care. The aim of the study was to characterize two polymethine-dyes potentially suitable for this purpose in vivo. Plasma disappearance rate and elimination measurements of simultaneously injected fluorescent dyes DY-780 (hepato-biliary elimination) and DY-654(renal elimination) were conducted using catheter techniques and intravital microscopy in animals subjected to different organ injuries, i...
November 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29130072/prediction-of-chronic-kidney-disease-stage-3-by-ckd273-a-urinary-proteomic-biomarker
#16
Claudia Pontillo, Zhen-Yu Zhang, Joost P Schanstra, Lotte Jacobs, Petra Zürbig, Lutgarde Thijs, Adela Ramírez-Torres, Hiddo J L Heerspink, Morten Lindhardt, Ronald Klein, Trevor Orchard, Massimo Porta, Rudolf W Bilous, Nishi Charturvedi, Peter Rossing, Antonia Vlahou, Eva Schepers, Griet Glorieux, William Mullen, Christian Delles, Peter Verhamme, Raymond Vanholder, Jan A Staessen, Harald Mischak, Joachim Jankowski
Introduction: CKD273 is a urinary biomarker, which in advanced chronic kidney disease predicts further deterioration. We investigated whether CKD273 can also predict a decline of estimated glomerular filtration rate (eGFR) to <60 ml/min per 1.73 m(2). Methods: In analyses of 2087 individuals from 6 cohorts (46.4% women; 73.5% with diabetes; mean age, 46.1 years; eGFR ≥ 60 ml/min per 1.73 m(2), 100%; urinary albumin excretion rate [UAE] ≥20 μg/min, 6.2%), we accounted for cohort, sex, age, mean arterial pressure, diabetes, and eGFR at baseline and expressed associations per 1-SD increment in urinary biomarkers...
November 2017: KI Reports
https://www.readbyqxmd.com/read/29126476/high-throughput-human-plasma-n-glycan-analysis-using-dna-analyzer-and-multivariate-analysis-for-biomarker-discovery
#17
Hua-Tao Feng, Siying Lim, Anna Karen Carrasco Laserna, Pingjing Li, Xuejiao Yin, Erhan Simsek, Shaheer H Khan, Shiaw-Min Chen, Sam F Y Li
Carbohydrates form the majority of organic compounds found in nature and their presence on proteins influences many important bioactivities. Therefore, glycan profiling shows potential in clinical applications. This work demonstrates the use of a high-throughput GlycanAssure™ sample preparation technology and multi-capillary DNA analyzer for the analysis of the major N-linked glycans (N-glycans) found in human plasma. The application involves two biomarker studies: (1) in profiling patients with chronic kidney disease and (2) in differentiating heart disease patients with normal controls in response to an antiplatelet drug from hypo-responders...
December 1, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/29126144/multi-scale-mathematical-model-of-drug-induced-proximal-tubule-injury-linking-urinary-biomarkers-to-epithelial-cell-injury-and-renal-dysfunction
#18
Yeshitila Gebremichael, James Lu, Harish Shankaran, Gabriel Helmlinger, Jerome Mettetal, K Melissa Hallow
Drug-induced nephrotoxicity is a major cause of acute kidney injury (AKI), and thus detecting the potential for nephrotoxicity early in the drug development process is critical. Various urinary biomarkers exhibit different patterns following drug-induced injury that may provide greater information than traditional biomarkers like serum creatinine. In this study, we developed a multi-scale quantitative systems pharmacology model relating drug exposure to proximal tubule (PT) epithelial cell injury, and subsequently to expression of multiple urinary biomarkers and organ-level functional changes...
November 6, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29125589/human-organ-tissue-identification-by-targeted-rna-deep-sequencing-to-aid-the-investigation-of-traumatic-injury
#19
Erin Hanson, Jack Ballantyne
Molecular analysis of the RNA transcriptome from a putative tissue fragment should permit the assignment of its source to a specific organ, since each will exhibit a unique pattern of gene expression. Determination of the organ source of tissues from crime scenes may aid in shootings and other investigations. We have developed a prototype massively parallel sequencing (MPS) mRNA profiling assay for organ tissue identification that is designed to definitively identify 10 organ/tissue types using a targeted panel of 46 mRNA biomarkers...
November 10, 2017: Genes
https://www.readbyqxmd.com/read/29123031/structure-function-characterization-of-three-human-antibodies-targeting-the-vaccinia-virus-adhesion-molecule-d8
#20
Michael H Matho, Andrew Schlossman, Iuliia M Gilchuk, Greg Miller, Zbigniew Mikulski, Matthias Hupfer, Jing Wang, Aruna Bitra, Xianghzi Meng, Yan Xiang, Tom Kaever, Tzanko Doukov, Klaus Ley, Shane Crotty, Bjoern Peters, Linda C Hsieh-Wilson, James E Crowe, Dirk M Zajonc
Vaccinia virus (VACV) envelope protein D8 is one of three glycosaminoglycan adhesion molecules and binds to the linear polysaccharide chondroitin sulfate (CS). D8 is also a target for neutralizing antibody responses that are elicited by the smallpox vaccine, which has enabled the first eradication of a human viral pathogen and is a useful model for studying antibody responses. However, to date, VACV epitopes targeted by human antibodies have not been characterized at atomic resolution. Here, we characterized the binding properties of several human anti-D8 antibodies and determined the crystal structures of three VACV-MAb variants, VACV-66, VACV-138, and VACV-304, separately bound to D8...
November 9, 2017: Journal of Biological Chemistry
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