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Cystatin C

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https://www.readbyqxmd.com/read/29777230/serum-biomarkers-of-inflammation-and-adiposity-in-the-labs-cohort-associations-with-metabolic-disease-and-surgical-outcomes
#1
Robert W O'Rourke, Geoffrey S Johnson, Jonathan Q Purnell, Anita P Courcoulas, Gregory F Dakin, Luis Garcia, Marcelo Hinojosa, James E Mitchell, Alfons Pomp, Walter J Pories, Konstantinos Spaniolas, David R Flum, Abdus S Wahed, Bruce M Wolfe
BACKGROUND: The utility of serum biomarkers related to inflammation and adiposity as predictors of metabolic disease prevalence and outcomes after bariatric surgery are not well-defined. METHODS: Associations between pre- and post-operative serum levels of four biomarkers (C-reactive protein (CRP), cystatin C (CC), leptin, and ghrelin) with baseline measures of adiposity and metabolic disease prevalence (asthma, diabetes, sleep apnea), and weight loss and metabolic disease remission after bariatric surgery were studied in the Longitudinal Assessment of Bariatric Surgery (LABS) cohort...
May 17, 2018: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29775443/-b-type-natriuretic-peptide-as-a-marker-of-cardiac-dysfunction-in-children-with-chronic-kidney-disease
#2
Tomasz Drożdż, Przemko Kwinta, Zbigniew Kordon, Krystyna Sztefko, Andrzej Rudziński, Katarzyna Zachwieja, Monika Miklaszewska, Danuta Czarnecka, Dorota Drożdż
Left ventricular hypertrophy is the most common organ damage in children with chronic kidney disease (CKD). AIM: The aim of the study was to assess the usefulness of B-type natriuretic peptide (BNP) as a marker of heart injury in children with CKD. MATERIALS AND METHODS: We included 66 children (41 boys and 25 girls) aged 0.7 to 18.6 (median 11.6) years with CKD stage 1-5. The concentrations of urea, creatinine, cystatin C and BNP in blood serum were assessed, and the estimated glomerular filtration rate (eGFR) was calculated from the Schwartz and Filler formulas...
April 23, 2018: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29775220/cystatin-c-is-a-more-reliable-biomarker-for-determining-egfr-to-support-drug-development-studies
#3
REVIEW
Sumit Kar, Sabina Paglialunga, Rafiqul Islam
Glomerular filtration rate (GFR) is routinely used as a surrogate endpoint for the development of investigational drugs in clinical trials. GFR and staging of chronic kidney disease are typically assessed by measuring the concentration of endogenous serum biomarkers such as albumin and creatinine. However, creatinine is subject to high biological variability, and levels of creatinine do not rise until nearly 50% of kidney function is damaged, leading to inaccurate chronic kidney disease staging and false negatives...
May 18, 2018: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29774462/combining-gfr-estimates-from-cystatin-c-and-creatinine-what-is-the-optimal-mix
#4
Emil den Bakker, Reinoud Gemke, Joanna A E van Wijk, Isabelle Hubeek, Birgit Stoffel-Wagner, Arend Bökenkamp
BACKGROUND: Combining estimated glomerular filtration rate (eGFR) equations based on creatinine and cystatin C has been shown to improve the accuracy of GFR estimation. This study aims to optimize this strategy for height-independent GFR estimation in children. METHODS: Retrospective study of 408 inulin clearance tests with simultaneous International Federation of Clinical Chemistry-calibrated measurements of creatinine, cystatin C, and urea in children (mean age 12...
May 17, 2018: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/29771963/predictive-value-of-long-term-changes-of-growth-differentiation-factor-15-over-a-27-year-period-for-heart-failure-and-death-due-to-coronary-heart-disease
#5
Nina Fluschnik, Francisco Ojeda, Tanja Zeller, Torben Jørgensen, Kari Kuulasmaa, Peter Moritz Becher, Christoph Sinning, Stefan Blankenberg, Dirk Westermann
BACKGROUND: Growth differentiation factor-15 (GDF-15), Cystatin C and C-reactive protein (CRP) have been discussed as biomarkers for prediction of cardiac diseases. The aim of this study was to investigate the predictive value of single and repeated measurements of GDF-15 compared to Cystatin C and CRP for incidence of heart failure (HF) and death due to coronary heart disease (CHD) in the general population. METHODS AND RESULTS: Levels of GDF-15, CRP and Cystatin C were determined in three repeated measurements collected 5 years apart in the DAN-MONICA (Danish-Multinational MONitoring of trends and determinants in Cardiovascular disease) cohort (participants at baseline n = 3785)...
2018: PloS One
https://www.readbyqxmd.com/read/29764624/hydrolyzed-proteins-from-herring-and-salmon-rest-raw-material-contain-peptide-motifs-with-angiotensin-i-converting-enzyme-inhibitors-and-resulted-in-lower-urine-concentrations-of-protein-cystatin-c-and-glucose-when-fed-to-obese-zucker-fa-fa-rats
#6
Aslaug Drotningsvik, Daniela Maria Pampanin, Rasa Slizyte, Ana Carvajal, Ingmar Høgøy, Tore Remman, Oddrun Anita Gudbrandsen
The use of angiotensin-I converting enzyme (ACE) inhibitors is a common strategy for treating kidney disease. Several amino acid sequences with ACE inhibiting activity are identified in filet and rest raw material from various species of fish, and fish protein hydrolysates could be of interest for possible treatment or prevention of kidney disease. Therefore, we hypothesized that protein hydrolysates from rest raw material from herring and salmon contained ACE inhibiting motifs, and could beneficially affect typical markers for kidney function in an obesity rat model prone to developing renal failure...
April 2018: Nutrition Research
https://www.readbyqxmd.com/read/29762739/ckd-staging-with-cystatin-c-or-creatinine-based-formulas-flipping-the-coin
#7
Sergio Luis-Lima, Beatriz Escamilla-Cabrera, Natalia Negrín-Mena, Sara Estupiñán, Patricia Delgado-Mallén, Domingo Marrero-Miranda, Ana González-Rinne, Rosa Miquel-Rodríguez, María Ángeles Cobo-Caso, Manuel Hernández-Guerra, Juana Oramas, Norberto Batista, Ana Aldea-Perona, Pablo Jorge-Pérez, Carlos González-Alayón, Miguel Moreno-Sanfiel, Juan Antonio González-Rodríguez, Laura Henríquez, Raquel Alonso-Pescoso, Laura Díaz-Martín, Federico González-Rinne, Bernardo Alio Lavín-Gómez, Judith Galindo-Hernández, Macarena Sánchez-Gallego, Alejandra González-Delgado, Alejandro Jiménez-Sosa, Armando Torres, Esteban Porrini
Background: Chronic kidney disease (CKD) affects 10-13% of the population worldwide. CKD classification stratifies patients in five stages of risk for progressive renal disease based on estimated glomerular filtration rate (eGFR) by formulas and albuminuria. However, the reliability of formulas to reflect real renal function is a matter of debate. The effect of the error of formulas in the CKD classification is unclear, particularly for cystatin C-based equations. Methods: We evaluated the reliability of a large number of cystatin C and/or creatinine-based formulas in the definition of the stages of CKD in 882 subjects with different clinical situations over a wide range of glomerular filtration rates (GFRs) (4...
May 11, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29757410/chronic-kidney-disease-and-peripheral-nerve-function-in-the-health-aging-and-body-composition-study
#8
Ranjani N Moorthi, Simit Doshi, Linda F Fried, Sharon M Moe, Mark J Sarnak, Suzanne Satterfield, Ann V Schwartz, Michael Shlipak, Brittney S Lange-Maia, Tamara B Harris, Anne B Newman, Elsa S Strotmeyer
Background: Chronic kidney disease (CKD) is associated with poor mobility. Peripheral nerve function alterations play a significant role in low mobility. We tested the hypothesis that early CKD is associated with altered sensory, motor and autonomic nerve function. Methods: Participants in the Health, Aging and Body Composition cohort who had kidney function measures in Year 3 (1999-2000) and nerve function measurements at Year 4 (2000-01) were analyzed (n = 2290)...
May 10, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29753732/niacin-action-in-the-atherogenic-mixed-dyslipidemia-of-metabolic-syndrome-insights-from-metabolic-biomarker-profiling-and-network-analysis
#9
Martin Adiels, M John Chapman, Paul Robillard, Michel Krempf, Martine Laville, Jan Borén
BACKGROUND: Niacin as an adjunct to statin treatment to reduce cardiovascular risk is questioned. OBJECTIVE: To evaluate interrelationships between the effects of niacin on mixed dyslipidemia and a spectrum of metabolic and inflammatory biomarkers. METHODS: Obese, nondiabetic, hypertriglyceridemic males (n = 19) with low high-density lipoprotein-cholesterol levels received extended-release nicotinic acid for 8 weeks. Multiple biomarkers were measured using enzyme-linked immunosorbent assay, enzymatic/absorptiometric, or multiplex biochip assays...
March 29, 2018: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/29753398/cardiovascular-risk-prediction-in-ckd
#10
REVIEW
Shoshana H Ballew, Kunihiro Matsushita
Cardiovascular disease is an important complication for patients with chronic kidney disease (CKD), warranting accurate risk prediction, but clinical guidelines are inconsistent regarding whether or how to use information on measures of CKD for predicting risk. Recent large meta-analyses have shown that key CKD measures (estimated glomerular filtration rate and albuminuria) improve cardiovascular risk prediction beyond traditional risk factors, especially when albuminuria is added to prediction models. In addition, several recent studies have shown that the use of filtration markers other than serum creatinine, cystatin C, and β2 -microglobulin can improve cardiovascular risk prediction...
May 2018: Seminars in Nephrology
https://www.readbyqxmd.com/read/29749989/first-report-on-the-percentiles-of-the-glomerular-filtration-rate-in-iranian-children-using-the-2009-schwartz-equations
#11
Peyman Roomizadeh, Alaleh Gheissari, Roya Kelishadi, Farhad Mahmoudi, Amin Abedini
The glomerular filtration rate (GFR) is widely considered the best overall index of renal function. The Schwartz equations are designed for measuring the GFR in children between 1 and 16 years of age. In the present study, we investigated the percentiles of the GFR in a general population of Iranian children with no known renal disease via the 2009 Schwartz equations (updated and combined equations). Between 2010 and 2011, we selected 687 children aged 7-16 years from the Iranian province of Isfahan. Blood samples were analyzed for blood urea nitrogen, creatinine, and cystatin C...
March 2018: Iranian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29749360/utility-of-cystatin-c-as-a-potential-bladder-tumour-biomarker-confirmed-by-surface-plasmon-resonance-technique
#12
Anna Tokarzewicz, Tomasz Guszcz, Anna Onopiuk, Robert Kozlowski, Ewa Gorodkiewicz
Background & objectives: The determination of cystatin C (cysC) may be helpful in diagnosis and monitoring of cancer because the pathogenesis of cancer is linked with an increased activity of cysteine peptidases (cathepsins) and a decrease of cysC concentration. This study was aimed to examine the utility of cysC as a marker of bladder cancer (BCa) to be used in the diagnosis. Methods: This study was conducted with 90 patients with BCa and 27 healthy people...
January 2018: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/29748898/cystatin-f-as-a-regulator-of-immune-cell-cytotoxicity
#13
REVIEW
Janko Kos, Milica Perišić Nanut, Mateja Prunk, Jerica Sabotič, Esmeralda Dautović, Anahid Jewett
Cysteine cathepsins are lysosomal peptidases involved in the regulation of innate and adaptive immune responses. Among the diverse processes, regulation of granule-dependent cytotoxicity of cytotoxic T-lymphocytes (CTLs) and natural killer (NK) cells during cancer progression has recently gained significant attention. The function of cysteine cathepsins is regulated by endogenous cysteine protease inhibitors-cystatins. Whereas other cystatins are generally cytosolic or extracellular proteins, cystatin F is present in endosomes and lysosomes and is thus able to regulate the activity of its target directly...
May 10, 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29748326/a-novel-method-for-rapid-bedside-measurement-of-gfr
#14
Dana V Rizk, Daniel Meier, Ruben M Sandoval, Teresa Chacana, Erinn S Reilly, Jesse C Seegmiller, Emmanuel DeNoia, James S Strickland, Joseph Muldoon, Bruce A Molitoris
Background Direct quantitative measurement of GFR (mGFR) remains a specialized task primarily performed in research settings. Multiple formulas for estimating GFR have been developed that use the readily available endogenous biomarkers creatinine and/or cystatin C. However, eGFR formulas have limitations, and an accurate mGFR is necessary in some clinical situations and for certain patient populations. We conducted a prospective, open-label study to evaluate a novel rapid technique for determining plasma volume and mGFR...
May 10, 2018: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/29743906/glomerular-filtration-decrease-after-diagnostic-cardiac-catheterisation-in-children-with-congenital-cardiac-malformation-the-role-of-serum-creatinine-cystatin-c-neutrophil-gelatinase-and-urine-output-monitoring
#15
Marcin Tkaczyk, Daria Tomczyk, Anna Jander, Sebastian Góreczny, Tomasz Moszura, Paweł Dryżek, Wojciech Krajewski, Ewa Głowacka, Agnieszka Wosiak
Introduction: Diagnosis of contrast induced-nephropathy (CIN) by a classic renal biomarker such as creatinine concentration can be delayed because of various factors that can influence this marker. Changes in new biomarkers such as neutrophil-gelatinase associated lipocalin (NGAL) and cystatin C are postulated to be more sensitive for recognizing patients prone to CIN-acute kidney injury (AKI). Aim: To investigate the role of NGAL and cystatin C as early biomarkers in the diagnosis of kidney injury after cardiac catheterisation...
2018: Postępy W Kardiologii Interwencyjnej, Advances in Interventional Cardiology
https://www.readbyqxmd.com/read/29742365/association-between-obstructive-sleep-apnea-and-cardiovascular-risk-factors-variation-by-age-sex-and-race-the-multi-ethnic-study-of-atherosclerosis-mesa
#16
Glaucylara Reis Geovanini, Rui Wang, Jia Weng, Nancy S Jenny, Steven Shea, Matthew Allison, Peter Libby, Susan Redline
RATIONALE: The association between obstructive sleep apnea (OSA) and cardiovascular disease (CVD) is complex, bi-directional, and may vary across groups. Understanding what cardiovascular risk factors vary in their relationship to OSA across population groups may improve the knowledge of the OSA-related CVD susceptibility. OBJECTIVE: To better understand the heterogeneity of associations, we assessed whether associations of OSA with cardiovascular risk factors vary by age, sex, and race/ethnicity...
May 9, 2018: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29740934/preventive-effect-of-nicorandil-on-contrast-induced-nephropathy-a-meta-analysis-of-randomized-controlled-trials
#17
Shuang Li, Lin Wang, Yucai Liu, Qiang Hu
BACKGROUNDS: Contrast-induced nephropathy (CIN) is a common and serious side effect in patients undergoing angiocardiography or radiological procedures. We aimed to comprehensively assess the impact of nicorandil on CIN, by gathering currently available data. METHODS AND RESULTS: We searched three main electric databases (Medline/PubMed, EMBASE and Cochrane Central Register of Controlled Trials) from inception through April, 2017. Four randomized controlled trials involving 730 participants were included...
May 9, 2018: Internal Medicine Journal
https://www.readbyqxmd.com/read/29735590/creatinine-and-cystatin-c-not-the-troponin-of-the-kidney
#18
EDITORIAL
Maria Rosa Costanzo, Jonathan Barasch
No abstract text is available yet for this article.
May 8, 2018: Circulation
https://www.readbyqxmd.com/read/29735307/combination-of-pediatric-and-adult-formulas-yield-valid-glomerular-filtration-rate-estimates-in-young-adults-with-a-history-of-pediatric-chronic-kidney-disease
#19
Derek K Ng, George J Schwartz, Michael F Schneider, Susan L Furth, Bradley A Warady
As patients with chronic kidney disease (CKD) transition from pediatric nephrology care to adult care, their kidney function is clinically assessed by estimated glomerular filtration rate (eGFR) using both pediatric and adult equations, which may not be congruent. Here we evaluated commonly used eGFR equations and directly measured iohexol GFR (iGFR) among participants between ages 18 and 26 with a diagnosis of pediatric CKD in the Chronic Kidney Disease in Children (CKiD) cohort. The bedside serum creatinine (SCr)-only equation (CKiDSCr ), the SCr-only CKD-EPI (CKD-EPISCr ), the cystatin C (Cys)-only CKD-EPI (CKD-EPICys ) and the combined SCr and Cys CKD-EPI (CKD-EPISCr-Cys ) were compared with a) 279 measured iGFRs obtained from 187 participants and b) 548 eGFRs from the SCr and Cys-based CKiD equation (CKiDSCr-Cys ) obtained from 219 participants...
May 5, 2018: Kidney International
https://www.readbyqxmd.com/read/29733331/mortality-in-relation-to-changes-in-a-healthy-aging-index-the-health-aging-and-body-composition-study
#20
Matthew D L O'Connell, Megan M Marron, Robert M Boudreau, Mark Canney, Jason L Sanders, Rose Anne Kenny, Stephen B Kritchevsky, Tamara B Harris, Anne B Newman
Background: Baseline scores on a Healthy Aging Index (HAI), including 5 key physiological domains, strongly predict health outcomes. This study aimed to characterize 9-year changes in a HAI and explore their relationship to subsequent mortality. Methods: Data are from the Health, Aging and Body Composition study of well-functioning adults aged 70-79. A HAI, which ranges from 0-10, was constructed at year 1 and year 10 of the study including systolic blood pressure, forced expiratory volume, digit symbol substitution test, cystatin C and fasting glucose...
May 4, 2018: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
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