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Kidney biomarker

Shinichi Hikasa, Megumi Yasuda, Kyoko Hideta, Mai Kawakami, Satoshi Higasa, Akihiro Sawada, Tazuko Tokugawa, Takeshi Kimura
BACKGROUND: Renal dysfunction is recognized with increasing frequency among the noninfectious comorbidities associated with human immunodeficiency virus (HIV) infection. Urinary liver-type fatty acid-binding protein (L-FABP) has been shown to be a new biomarker to screen for not only tubulointerstitial damage but also kidney dysfunction. METHODS: We performed a cross-sectional study to determine the association between the urinary L-FABP and chronic kidney disease (CKD) among 77 HIV-infected Japanese patients by backward-stepwise multivariable logistic regression...
October 19, 2016: Clinical and Experimental Nephrology
Julia Smedbråten, Geir Mjøen, Anders Hartmann, Anders Åsberg, Halvor Rollag, Tom Eirik Mollnes, Leiv Sandvik, Morten W Fagerland, Steffen Thiel, Solbjørg Sagedal
BACKGROUND: Higher incidence of malignancy and infectious diseases in kidney transplant recipients is related to immunosuppressive treatment after transplantation and the recipient's native immune system. The complement system is an essential component of the innate immunity. The aim of the present study was to investigate the association of effector molecules of the lectin complement pathway with graft and patient survival after kidney transplantation. METHODS: Two mannan-binding lectin (MBL) associated proteases, MASP-2 and MASP-3 (activators of the lectin pathway) and two MBL-associated proteins, MAp44 and MAp19 (inhibitors of the lectin pathway) were measured at the time of transplantation in 382 patients (≥17 years old) transplanted in 2000-2001...
October 18, 2016: BMC Nephrology
Aydın Güçlü, Cengiz Koçak, Fatma Emel Koçak, Raziye Akçılar, Yavuz Dodurga, Aydın Akçılar, Mücahit Seçme
AIM: MicroRNAs (miR) are important diagnostic and treatment targets due to their different tissue expressions and their central position in the regulation of gene expressions. miR studies might pioneer emerging of new diagnostic tools and treatment goals in kidney diseases. Captopril (CAP) and telmisartan (TEL) were shown to be effective in ischemia reperfusion (IR) injury. There is not any study about the effect of TEL and CAP over miR-21-320-146a. Our aim was to study the effects of CAP and TEL over miR on renal IR model...
October 19, 2016: Renal Failure
Mauro Boronat, Ángelo Santana, Elvira Bosch, Dionisio Lorenzo, Marta Riaño, César García-Cantón
BACKGROUND/AIMS: Different biochemical abnormalities of metabolic bone disease have been associated with anemia of chronic kidney disease (CKD), mainly in hemodialysis patients. However, all of these abnormalities are closely inter-related and their individual effect on the development of anemia is uncertain. This study was aimed to assess the relationship between anemia and a set of metabolic bone disease biomarkers in a cohort of adult patients with advanced non-dialysis-dependent CKD...
October 20, 2016: Nephron
Osama Mosa, Milan Skitek, Ales Jerin
CONTEXT AND OBJECTIVE: Acute kidney injury (AKI) is still a headache for clinicians and scientists as a possible reason for increased death among intensive care unit (ICU) patients after invasive cardiac surgery. Furthermore, the diagnostic process for AKI using conventional biomarkers is not sufficient to ensure early warning of this condition because of the morbid influence of non-renal factors that definitively delay the time for the prognosis. These imposed limitations have led to significant amounts of research targeted towards identifying novel biomarkers for AKI with a sustained degree of sensitivity and specificity...
October 13, 2016: São Paulo Medical Journal, Revista Paulista de Medicina
Paolo Angeli, Dimitri Bezinover, Gianni Biancofiore, Anja Bienholz, James Findlay, Catherine Paugam Burtz, Koen Reyntjens, Tetsuro Sakai, Fuat H Saner, Dana Tomescu, Gebhard Wagener, Emmanuel Weiss
Acute kidney injury (AKI) is associated with high perioperative mortality. A series of AKI research breakthroughs are worth mentioning. First, in 2003, serum and urine biomarkers specific to AKI were identified. These biomarkers have contributed to early detection, prevention, and treatment of AKI. In 2004, AKI severity was defined with the Risk, Injury, Failure, Loss, and End-stage kidney disease (RIFLE) criteria, which was developed by the International Consensus Conference Workgroup of the Acute Dialysis Quality Initiative...
October 19, 2016: Minerva Anestesiologica
Sanjiv M Baxi, Rebecca Scherzer, Vasantha Jotwani, Michelle M Estrella, Alison G Abraham, Chirag R Parikh, Michael R Bennett, Mardge H Cohen, Marek J Nowicki, Deborah R Gustafson, Anjali Sharma, Mary A Young, Michael G Shlipak
BACKGROUND: Urine biomarkers have helped identify persons at risk for progressing to kidney disease in the setting of HIV infection. We explored factors associated with changes in three urine biomarkers over 10 years among women living with HIV. METHODS: Prospective cohort of 294 HIV-infected women from the multicenter Women's Interagency HIV Study (WIHS). Predictors included HIV viral and immunological parameters, co-morbid conditions and health-related behaviors...
October 18, 2016: Journal of Acquired Immune Deficiency Syndromes: JAIDS
Caixia Yin, Ningning Wang
Kidney injury molecule-1(KIM-1) is a type I membrane protein, comprising an extracellular portion and a cytoplasmic portion, which is expressed at very low levels in the normal kidney. The extracellular portion can cleave and rapidly enter tubule lumens after kidney injury, and can then be detected in the urine. It has been confirmed that the urine KIM-1 level is closely related to tissue KIM-1 level and correlated with kidney tissue damage. Not only is KIM-1 proven to be an early biomarker of acute kidney injury but it also has a potential role in predicting long-term renal outcome...
October 19, 2016: Renal Failure
M Namdari, A Eatemadi, B Negahdari
Brain natriuretic peptide (BNP), also known as a B-type natriuretic peptide, is one of the important biomarkers with a proven role in the diagnosis of congestive heart failure (CHF). Researchers from the different clinical field have researched into the performance features of BNP testing in the acute care set-up to assist and improve in diagnosing CHF and in predicting future morbidity and mortality rates. The potency of BNP has also been researched into in cases like myocardial ischemia and infarction, cor pulmonale, and acute pulmonary embolism (PE)...
September 30, 2016: Cellular and Molecular Biology
Lawrence Appel
The identification of explicit blood pressure targets for clinical management remains controversial, particularly in older individuals with co-morbidities. Recommendations from the panel appointed to the Eighth Joint National Committee (JNC 8) and results of the SPRINT trial have rekindled interest in this issue. JNC8 recommended a higher (more relaxed) BP goal of < 150/90, instead of the traditional BP goal of <140/90, in persons aged 60+. In contrast, the recently completed SPRINT trial, which enrolled high risk patients without diabetes, documented that a lower (more stringent) SBP goal of <120 mmHg reduced total mortality and cardiovascular disease events compared to <140 mmHg...
September 2016: Journal of Hypertension
Akira Nishiyama
The renin-angiotensin system (RAS) plays a critical role in the regulation of blood pressure and body fluid homeostasis. In addition to its physiological roles, angiotensin II (AngII) induces inflammation, cell growth, mitogenesis, apoptosis, migration, and differentiation, regulates the gene expression of bioactive substances, and activates multiple intracellular signaling pathways, all of which contribute to renal tissue injuries. In the kidney, all of the RAS components are present and intrarenal AngII is formed by independent multiple mechanisms...
September 2016: Journal of Hypertension
Ana Vrdoljak, Vanja Ivković, Sandra Karanović, Živka Dika, Ivana Vuković, Jelena Kos, Mario Laganović, Tajana Željković Vrkić, Margareta Fištrek Prlić, Ivan Pećin, Bojan Jelaković
OBJECTIVE: It was observed that glomerular hyperfiltration (GHF) is associated with progression of kidney disease in diabetics, patients in stage 1 hypertension (HT), and we found previously that eGFR decreased faster also in prehypertensives (PHT) with GHF. Here we analyzed whether GHF in PHT is associated with other biomarkers of early renal impairment. DESIGN AND METHOD: From 954 subjects enrolled in ENAH follow-up study, 371(137 m;mean age = 46years) were eligible for further analysis:100 with optimal,72 with normal BP,70 with PHT(high normal BP),and 129 with newly diagnosed untreated HT...
September 2016: Journal of Hypertension
Bin Bai, Jin Xiong, Yuyan Lv, Shikai Yu, Jiadela Teliewubai, Chen Chi, Yiwu Zhou, Kai Wang, Le Wang, Yi Zhang, Yawei Xu
OBJECTIVE: To investigate the discrepancy between PWV and PPA in association with hypertensive TODs in the elderly population. DESIGN AND METHOD: From June 2014 to August 2015, a total of 1599 community-based elderly subjects (age > 65 years old) located in the northern Shanghai were recruited. The carotid-femoral pulse wave velocity (cfPWV), peripheral blood pressure (BP), central BP and other TODs indicators including the ratio of the early ventricular filling velocity (E) to the peak velocity of tissue Doppler velocity of septal mitral annulus (E/Ea), left ventricular mass index (LVMI), carotid intima-medium thickness (IMT), estimated glomerular filtration rate (eGFR), urinary albumin-creatinine rate (ACR) were assessed on each participant...
September 2016: Journal of Hypertension
Yook Chin Chia
: Many cardiovascular disease (CVD) risk prediction tools have been developed in an attempt to identify those at highest risk in order for them to benefit from interventional treatment. The first CVD risk tool that was developed was the coronary heart disease risk tool by the Framingham Heart Study in 1998 (1). However the Framingham Risk Score could overestimate (or underestimate) risk in populations other than the US population. Hence several other risk engines have also been developed, primarily for a better fit in the communities in which the tools are to be used (2, 3)...
September 2016: Journal of Hypertension
Eva Pazourkova, Sarka Pospisilova, Iveta Svobodova, Ales Horinek, Antonin Brisuda, Viktor Soukup, Jan Hrbacek, Otakar Capoun, Jaroslav Mares, Tomas Hanus, Marek Babjuk, Marie Korabecna
MicroRNAs (miRNAs) in urine are examined as potential biomarkers. We examined the urine samples from 70 individuals (45 males, 25 females, mean age 65 years, range 20-84 years). Of the urine donors, 15 were healthy volunteers, 5 were patients with non-cancer diseases, 50 were patients with different stages of bladder cancer. To examine the spectrum of miRNAs in the cell-free fraction of urine, TaqMan Human miRNA Array Card A v.2.1 was used. A set of 30 miRNAs were found that are constantly present in urine supernatants independently of sex, age and health status of the subjects...
2016: Advances in Experimental Medicine and Biology
Farag E Salama, Qasem A Anass, Abdelnaem A Abdelrahman, Elsayed B Saeed
Cardiovascular disease is the leading cause of morbidity and mortality in patients with chronic kidney disease (CKD). The carotid intima-media thickness (CIMT) and arterial stiffness are useful markers of subclinical atherosclerosis and significantly correlate with various metabolic risk factors. Chemerin is one of the adipokines that may represent a link between obesity and inflammation and may be a potential candidate playing a role in the pathogenesis of atherosclerosis and cardiovascular complications. Therefore, we studied the relationship of chemerin levels with atherosclerosis as measured by CIMT in diabetic CKD patients, either predialysis or on hemodialysis (HD)...
September 2016: Saudi Journal of Kidney Diseases and Transplantation
James J Hsieh, David Chen, Patricia I Wang, Mahtab Marker, Almedina Redzematovic, Ying-Bei Chen, S Duygu Selcuklu, Nils Weinhold, Nancy Bouvier, Kety H Huberman, Umesh Bhanot, Michael S Chevinsky, Parul Patel, Patrizia Pinciroli, Helen H Won, Daoqi You, Agnes Viale, William Lee, A Ari Hakimi, Michael F Berger, Nicholas D Socci, Emily H Cheng, Jennifer Knox, Martin H Voss, Maurizio Voi, Robert J Motzer
BACKGROUND: Metastatic renal cell carcinoma (RCC) patients are commonly treated with vascular endothelial growth factor (VEGF) inhibitors or mammalian target of rapamycin inhibitors. Correlations between somatic mutations and first-line targeted therapy outcomes have not been reported on a randomized trial. OBJECTIVE: To evaluate the relationship between tumor mutations and treatment outcomes in RECORD-3, a randomized trial comparing first-line everolimus (mTOR inhibitor) followed by sunitinib (VEGF inhibitor) at progression with the opposite sequence in 471 metastatic RCC patients...
October 14, 2016: European Urology
Hua Chen, Gang Cao, Dan-Qian Chen, Ming Wang, Nosratola D Vaziri, Zhi-Hao Zhang, Jia-Rong Mao, Xu Bai, Ying-Yong Zhao
Early detection is critical in prevention and treatment of kidney disease. However currently clinical laboratory and histopathological tests do not provide region-specific and accurate biomarkers for early detection of kidney disease. The present study was conducted to identify sensitive biomarkers for early detection and progression of tubulo-interstitial nephropathy in aristolochic acid I-induced rats at weeks 4, 8 and 12. Biomarkers were validated using aristolochic acid nephropathy (AAN) rats at week 24, adenine-induced chronic kidney disease (CKD) rats and CKD patients...
September 28, 2016: Redox Biology
Xiang Sun, Hongwei Zhang, Longhua Luo, Kezhao Zhong, Yushui Ma, Linlin Fan, Da Fu, Lijuan Wan
The identification of markers for disease diagnostic, prognostic, or predictive purposes will have a great effect in improving patient management. Proteomic‑based approaches for biomarker discovery are promising strategies used in cancer research. In this study, we performed quantitative proteomic analysis on four patients including clear cell renal cell carcinoma (ccRCC) and paired adjacent non‑cancerous renal tissues using label‑free quantitative proteomics and liquid chromatography‑tandem mass spectrometry (LC‑MS/MS) to identify differentially expressed proteins...
October 11, 2016: Oncology Reports
Tennille N Webb, Stuart L Goldstein
PURPOSE OF REVIEW: The incidence of cardiac surgery-associated acute kidney injury (CS-AKI) continues to increase and is associated with significant morbidity and mortality. Early diagnosis and identification of patients at risk are extremely important. Therefore, identifying associated risk factors, biomarkers for earlier detection, prevention and therapeutic options for CS-AKI warrant special attention. RECENT FINDINGS: The current diagnosis of acute kidney injury (AKI) largely depends upon the functional biomarkers serum creatinine and oliguria leading to delays in diagnosis and worsening outcomes...
September 29, 2016: Current Opinion in Anaesthesiology
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