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https://www.readbyqxmd.com/read/29149959/urinary-tissue-inhibitor-of-metalloproteinase-and-insulin-like-growth-factor-7-as-early-biomarkers-of-delayed-graft-function-after-kidney-transplantation
#1
J Yang, S Y Lim, M-G Kim, C-W Jung, W-Y Cho, S-K Jo
BACKGROUND: Recently, urinary tissue inhibitor of metalloproteinase-2 (TIMP-2) and insulin-like growth factor-7 (IGFBP-7), markers for G1 cell cycle arrest, have been identified and validated in predicting the development of acute kidney injury in critically ill patients. It is unknown, however, whether these two biomarkers could predict the development of delayed graft function (DGF) after kidney transplantation (KT). METHODS: This is a single-center, prospective, observational study...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29044306/biomarkers-of-renal-recovery-after-acute-kidney-injury
#2
Sérgio Mina Gaião, José Artur Osório de Carvalho Paiva
Novel biomarkers can be suitable for early acute kidney injury diagnosis and the prediction of the need for dialysis. It remains unclear whether such biomarkers may also play a role in the prediction of recovery after established acute kidney injury or in aiding the decision of when to stop renal support therapy. PubMed, Web of Science and Google Scholar were searched for studies that reported on the epidemiology of renal recovery after acute kidney injury, the risk factors of recovery versus non-recovery after acute kidney injury, and potential biomarkers of acute kidney injury recovery...
July 2017: Revista Brasileira de Terapia Intensiva
https://www.readbyqxmd.com/read/28677727/serum-biomarker-analysis-in-patients-with-recurrent-spontaneous-abortion
#3
Ying Wu, Junqin He, Chunyu Guo, Ying Zhang, Wei Yang, Mingwei Xin, Xinyun Liang, Xiaodan Yin, Jingshang Wang, Yanfeng Liu
Recurrent spontaneous abortion (RSA) occurs in 1‑5% of parturients. The sustained therapy and research for RSA is expensive, which is a serious issue faced by both patients and doctors. The aim of the present study was to detect protein expression profiles in the serum of RSA patients and healthy controls, and to identify potential biomarkers for this disease. A 1,000‑protein microarray consisting of a combination of Human L‑507 and L‑493 was used. The microarray data revealed that eight serum protein expression levels were significantly upregulated and 143 proteins were downregulated in RSA patients compared with the healthy controls...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28537976/interest-of-urinary-timp-2-%C3%A3-igfbp-7-for-predicting-the-occurrence-of-acute-kidney-injury-after-cardiac-surgery-a-gray-zone-approach
#4
Toufic Finge, Sébastien Bertran, Claire Roger, Damien Candela, Bruno Pereira, Christopher Scott, Laurent Muller, Benjamin Louart, Jean-Yves Lefrant
BACKGROUND: This study assessed the ability of 3-hour postoperative urinary tissue inhibitor of metalloproteinases-2 × insulin-like growth factor binding protein-7 ([TIMP-2] × [IGFBP-7]) to predict postoperative acute kidney injury (AKI) in patients undergoing cardiopulmonary bypass during cardiac surgery. METHODS: Patients undergoing cardiac surgery with cardiopulmonary bypass were eligible for this study. Patients with initial chronic renal insufficiency requiring renal replacement therapy, patients <18 years of age, and parturients were not included...
September 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28438765/longitudinal-characterization-of-renal-proximal-tubular-markers-in-normotensive-and-preeclamptic-pregnancies
#5
Elisabeth Codsi, Vesna D Garovic, Maria L Gonzalez-Suarez, Natasa Milic, Kristi S Borowski, Carl H Rose, Norman P Davies, Kianoush B Kashani, John C Lieske, Wendy M White
Glomerular damage is common in preeclampsia (PE), but the extent and etiology of tubular injury are not well understood. The aim of this study was to evaluate tubular injury in patients with PE and to assess whether it predates clinical disease. We performed a prospective cohort study of 315 pregnant women who provided urine samples at the end of the second trimester and at delivery. This analysis included women who developed PE (n = 15), gestational hypertension (GH; n = 14), and normotensive controls (NC; n = 44)...
May 1, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28407838/-effects-of-maternal-folate-deficiency-on-the-methylation-of-insulin-like-growth-factor-system-in-the-offspring-rats
#6
Meng-Meng Wu, Fan Yang, Yi Qu, De-Zhi Mu
OBJECTIVE: To study the effects of maternal folate deficiency on fetal growth and development and the methylation profiles of insulin-like growth factor system in the offspring rats. METHODS: Twenty-two Sprague-Dawley female rats were randomly assigned to two groups: a folate deficient group (n=12) and a control group (n=10). They were fed with folate deficient and normal diet respectively. Dams were mated after 2 weeks of feeding. Eight female rats from each group were pregnant...
April 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28382566/kinetics-of-the-cell-cycle-arrest-biomarkers-timp-2-igfbp-7-for-prediction-of-acute-kidney-injury-in-infants-after-cardiac-surgery
#7
Katja M Gist, Stuart L Goldstein, Julia Wrona, Jeffrey A Alten, Rajit K Basu, David S Cooper, Danielle E Soranno, Jane Duplantis, Christopher Altmann, Zhiqian Gao, Sarah Faubel
BACKGROUND: Tissue inhibitor metalloproteinase-2 (TIMP-2) and insulin-like growth factor binding protein-7 (IGFBP-7) are cell-cycle arrest biomarkers that have been shown to be predictive of acute kidney injury (AKI) in critically ill adults. AKI affects a large proportion (40%) of children following cardiac surgery. The aim of this study was to describe the kinetics of TIMP-2*IGFBP-7 and test its ability to predict AKI in infants following cardiac surgery. METHODS: A multicenter prospective study was performed in infants undergoing cardiac surgery with cardiopulmonary bypass (CPB) from October 2013 to January 2015...
April 5, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/27769173/serum-insulin-like-growth-factor-1-and-its-binding-protein-7-potential-novel-biomarkers-for-heart-failure-with-preserved-ejection-fraction
#8
Michael Coll Barroso, Frank Kramer, Stephen J Greene, Daniel Scheyer, Till Köhler, Martin Karoff, Melchior Seyfarth, Mihai Gheorghiade, Wilfried Dinh
BACKGROUND: Insulin-like growth factor binding protein-7 (IGFBP-7) modulates the biological activities of insulin-like growth factor-1 (IGF-1). Previous studies demonstrated the prognostic value of IGFBP-7 and IGF-1 among patients with systolic heart failure (HF). This study aimed to evaluate the IGF1/IGFBP-7 axis in HF patients with preserved ejection fraction (HFpEF). METHODS: Serum IGF-1 and IGFBP-7 levels were measured in 300 eligible consecutive patients who underwent comprehensive cardiac assessment...
October 21, 2016: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/27726925/the-effect-of-hmb-ingestion-on-the-igf-i-and-igf-binding-protein-response-to-high-intensity-military-training
#9
Michael J Redd, Jay R Hoffman, Yftach Gepner, Jeffrey R Stout, Mattan W Hoffman, Daniel Ben-Dov, Shany Funk, David D Church, Guy Avital, Yacov Chen, Hagai Frankel, Ishay Ostfeld
OBJECTIVE: Insulin-like growth factor-I (IGF-I) is a metabolic and anabolic biomarker that has been proposed to reflect physiological adaptations resulting from multistressor environments. The bioactivity of IGF-I is regulated by seven different insulin-like growth factor binding proteins (IGFBPs) which act not only as carriers of IGF-1, but also function as a modulator of IGF-I availability and activity. Supplementing with β-hydroxy-β-methylbutyrate (HMB) has been shown to enhance physiological outcomes associated with intense training, and has been reported to augment the IGF-1 response...
February 2017: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/27679852/the-relationship-of-novel-plasma-proteins-in-the-early-neonatal-period-with-retinopathy-of-prematurity
#10
Anne M Lynch, Brandie D Wagner, Naresh Mandava, Alan G Palestine, Peter M Mourani, Emily A McCourt, Scott C N Oliver, Steven H Abman
Purpose: Retinopathy of prematurity (ROP) is a vision-threatening disease associated with abnormal retinal vascular development. Proteins from the insulin-like growth factor pathway are related to ROP. However, there is a paucity of research on the role of other proteins in ROP. The aim of this study was to identify plasma proteins related to clinically significant ROP. Methods: We measured 1121 plasma proteins in the early neonatal period in infants at risk for ROP using an aptamer-based proteomic technology...
September 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27474749/atherosclerotic-renal-artery-stenosis-is-associated-with-elevated-cell-cycle-arrest-markers-related-to-reduced-renal-blood-flow-and-postcontrast-hypoxia
#11
Ahmed Saad, Wei Wang, Sandra M S Herrmann, James F Glockner, Michael A Mckusick, Sanjay Misra, Haraldur Bjarnason, Lilach O Lerman, Stephen C Textor
BACKGROUND: Atherosclerotic renal artery stenosis (ARAS) reduces renal blood flow (RBF), ultimately leading to kidney hypoxia and inflammation. Insulin-like growth factor binding protein-7 (IGFBP-7) and tissue inhibitor of metalloproteinases-2 (TIMP-2) are biomarkers of cell cycle arrest, often increased in ischemic conditions and predictive of acute kidney injury (AKI). This study sought to examine the relationships between renal vein levels of IGFBP-7, TIMP-2, reductions in RBF and postcontrast hypoxia as measured by blood oxygen level-dependent (BOLD) magnetic resonance imaging...
November 2016: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/27274818/the-cell-cycle-biomarkers-promising-research-but-do-not-oversell-them
#12
REVIEW
Norbert Lameire, Jill Vanmassenhove, Wim Van Biesen, Raymond Vanholder
This review focuses on the most recent scientific and clinical information on the development and clinical applicability of the cell cycle biomarkers TIMP-2 and IGFBP-7 in the diagnosis and prognosis of patients at risk for and suffering from acute kidney injury (AKI). A number of evaluation studies have demonstrated that compared with existing biomarkers, urinary excretion of the product of both biomarkers, [TIMP-2]•[IGFBP-7], improved diagnostic performance in assessing the risk for AKI, predicting the need for renal replacement therapy, AKI-related complications and short- and long-term prognoses...
June 2016: Clinical Kidney Journal
https://www.readbyqxmd.com/read/26797672/analytical-characteristics-of-a-biomarker-based-risk-assessment-test-for-acute-kidney-injury-aki
#13
Denise L Uettwiller-Geiger, Ravi Vijayendran, John A Kellum, Robert L Fitzgerald
BACKGROUND: Acute kidney injury (AKI) is associated with increased mortality, morbidity, hospital length of stay, and costs. A quantitative urine test is available to assess the risk of developing AKI by measuring the concentrations of two protein biomarkers, TIMP-2 and IGFBP-7. The NephroCheck Test combines these concentrations into an AKIRisk Score. The purpose of this study is to characterize the analytical performance characteristics of the AKIRisk Score. METHODS: Linearity and analytical sensitivity were evaluated by following Clinical Laboratory Standards Institute (CLSI) EP06-A and EP17-A, respectively...
April 1, 2016: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/26387651/histone-3-trimethylation-of-igfbp-7-gene-promoter-by-expression-of-d5-stat5a-in-breast-epithelial-cells
#14
Dunyong Tan, Jie Zhang, Xi Nie, Chao Yu, Zhongzheng Li, Zulbnur Mamat, Huang Jiang, Xiaomeng Yang, Jiao Zhang, Sihong Yao, Peizhi Tang, Jianjun Huang
As a very important transcription factor, signal transducer and activator of transcription 5a (Stat5a) has been reported to be involved in human reproductive cancers such as breast, prostate and ovarian cancer. However, up to date, the exact role of Stat5a in breast cancer is still not clear. The data reported are conflicting. D5 Stat5a is a variant of Stat5a we cloned recently. This newly cloned variant behave like its full length counterpart in terms of dimerization, being activated by prolactin and nuclear translocation, however it also behave differently in terms of effect on cell proliferation and interaction with other transcription factors...
October 31, 2015: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/25880247/methylation-status-of-insulin-like-growth-factor-binding-protein-7-concurs-with-the-malignance-of-oral-tongue-cancer
#15
Li-Hsuen Chen, Dai-Wei Liu, Junn-Liang Chang, Peir-Rong Chen, Lee-Ping Hsu, Hon-Yi Lin, Yu-Fu Chou, Chia-Fong Lee, Miao-Chun Yang, Yu-Hsuan Wen, Wen-Lin Hsu, Ching-Feng Weng
BACKGROUND: Aberrant insulin-like growth factor-binding protein 7 (IGFBP-7) expression has been found in various cancers such as prostate, breast, and colon. IGFBP-7 induced the apoptosis of tumor and potentially predicted the clinical outcome in some cancers is further demonstrated. This study investigates the causes and underlying mechanisms of aberrant IGFBP-7 expression in unravelling head and neck squamous cell carcinoma (HNSCC). METHODS: A total of 47 oral tongue cancer patient samples were primarily analyzed for the methylation status in 5' region of IGFBP-7 by methylation-specific PCR (MS-PCR)...
February 24, 2015: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/25819415/insulin-like-growth-factor-binding-protein-7-is-up-regulated-during-eae-and-inhibits-the-differentiation-of-oligodendrocyte-precursor-cells
#16
Weixing Tan, Yingyan Pu, Qi Shao, Xue Fang, Dunxin Han, Ming Zhao, Li Cao
Oligodendrocyte precursor cells (OPCs) differentiation failure is one of the leading causes for remyelination defects in the demyelinating lesions of multiple sclerosis (MS). In this study, we explored the roles of insulin-like growth factor-binding proteins 7 (IGFBP-7) on OPCs differentiation during experimental autoimmune encephalomyelitis (EAE). We first investigated the expression pattern of IGFBP-7 by real-time PCR and immunofluorescence staining. It showed that IGFBP-7 was expressed in astrocytes (ACs), oligodendrocytes (OLs) and neurons both in vitro and in vivo...
May 8, 2015: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/25560277/quantification-of-urinary-timp-2-and-igfbp-7-an-adequate-diagnostic-test-to-predict-acute-kidney-injury-after-cardiac-surgery
#17
Anna J Wetz, Eva M Richardt, Saskia Wand, Nils Kunze, Hanna Schotola, Michael Quintel, Anselm Bräuer, Onnen Moerer
INTRODUCTION: Postoperative acute kidney injury (AKI) is a frequently observed complication after on-pump cardiac surgery (CS) and is associated with adverse patient outcomes. Early identification of patients at risk is essential for the prevention of AKI after CS. In this study, we analysed whether urinary tissue inhibitor of metalloproteinase 2 (TIMP-2) combined with urine insulin-like growth factor binding protein 7 (IGFBP-7) ([TIMP-2] × [IGFBP-7]) is an adequate diagnostic test to identify early AKI after on-pump CS...
2015: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/25543030/the-change-of-circulating-insulin-like-growth-factor-binding-protein-7-levels-may-correlate-with-postoperative-cognitive-dysfunction
#18
Jue Jiang, Zhifeng Chen, Bing Liang, Jia Yan, Ying Zhang, Hui Xu, Yan Huang, Hong Jiang
Insulin-like growth factor binding protein (IGFBP) 7 may be a critical regulator of memory consolidation. This study was performed to assess the relationship between circulating IGFBP7 levels and postoperative cognition dysfunction (POCD) in patients scheduled for elective head and neck carcinoma surgery under general anesthesia. Among one hundred and two patients included in this study, forty-four patients completed collection of all four blood samples and thirty-five patients were diagnosed with POCD. The results of Mini-Mental State Examination (MMSE) test and enzyme-linked immunosorbent assay showed that postoperative MMSE score and circulating insulin-like growth factor (IGF)-1 level were lower and circulating IGFBP7 level was higher than preoperative level...
February 19, 2015: Neuroscience Letters
https://www.readbyqxmd.com/read/25237065/derivation-and-validation-of-cutoffs-for-clinical-use-of-cell-cycle-arrest-biomarkers
#19
RANDOMIZED CONTROLLED TRIAL
Eric A J Hoste, Peter A McCullough, Kianoush Kashani, Lakhmir S Chawla, Michael Joannidis, Andrew D Shaw, Thorsten Feldkamp, Denise L Uettwiller-Geiger, Paul McCarthy, Jing Shi, Michael G Walker, John A Kellum
BACKGROUND: Acute kidney injury (AKI) remains a deadly condition. Tissue inhibitor of metalloproteinases (TIMP)-2 and insulin-like growth factor binding protein (IGFBP)7 are two recently discovered urinary biomarkers for AKI. We now report on the development, and diagnostic accuracy of two clinical cutoffs for a test using these markers. METHODS: We derived cutoffs based on sensitivity and specificity for prediction of Kidney Disease: Improving Global Outcomes Stages 2-3 AKI within 12 h using data from a previously published multicenter cohort (Sapphire)...
November 2014: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/24972190/anti-diabetic-doses-of-metformin-decrease-proliferation-markers-in-tumors-of-patients-with-endometrial-cancer
#20
Ido Laskov, Laura Drudi, Marie-Claude Beauchamp, Amber Yasmeen, Alex Ferenczy, Michael Pollak, Walter H Gotlieb
BACKGROUND: Metformin has been associated with reduced cancer risk. The mechanisms underlying this cancer protective effect remain unknown. METHODS: "Window of opportunity" study of metformin in women with operable endometrial cancer (EC). Eleven newly diagnosed, untreated, non-diabetic patients with EC received metformin 500 mg tid from diagnostic biopsy to surgery. Fasting plasma insulin, insulin-like growth factor 1 (IGF-1), insulin-like growth factor binding protein 1 (IGFBP-1) and insulin-like growth factor binding protein 7 (IGFBP-7) measurements were taken before and after metformin treatment...
September 2014: Gynecologic Oncology
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