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markers in chronic kidney disease

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https://www.readbyqxmd.com/read/29673338/the-prognostic-importance-of-duration-of-aki-a-systematic-review-and-meta-analysis
#1
Swati Mehta, Kinsuk Chauhan, Achint Patel, Shanti Patel, Rachel Pinotti, Girish N Nadkarni, Chirag R Parikh, Steven G Coca
BACKGROUND: Acute kidney injury (AKI), as defined by peak increase in serum creatinine, is independently associated with increased risk of mortality and length of stay. Studies have suggested that the duration of AKI may be an important additional or independent prognostic marker of increased mortality in patients with AKI across clinical settings. We performed a systematic review and meta-analysis of published studies to assess the impact of duration of AKI on outcomes. METHODS: Various bibliographic databases (MEDLINE, Embase, Cochrane Library, CINAHL and Web of Science) were searched through database inception to December 2015...
April 19, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29671890/dynamic-thresholds-and-a-summary-roc-curve-assessing-prognostic-accuracy-of-longitudinal-markers
#2
P Saha-Chaudhuri, P J Heagerty
Cancer patients, chronic kidney disease patients, and subjects infected with HIV are routinely monitored over time using biomarkers that represent key health status indicators. Furthermore, biomarkers are frequently used to guide initiation of new treatments or to inform changes in intervention strategies. Since key medical decisions can be made on the basis of a longitudinal biomarker, it is important to evaluate the potential accuracy associated with longitudinal monitoring. To characterize the overall accuracy of a time-dependent marker, we introduce a summary ROC curve that displays the overall sensitivity associated with a time-dependent threshold that controls time-varying specificity...
April 19, 2018: Statistics in Medicine
https://www.readbyqxmd.com/read/29669060/plasticizer-di-2-ethylhexyl-phthalate-induces-epithelial-to-mesenchymal-transition-and-renal-fibrosis-in-vitro-and-in-vivo
#3
Cheng-Tien Wu, Ching-Chia Wang, Li-Chen Huang, Shing-Hwa Liu, Chih-Kang Chiang
Plasticizer di-(2-ethylhexyl)phthalate (DEHP) is known as an endocrine disruptor and a peroxisome proliferator. A currently epidemiological study has suggested that daily high di-(2-ethylhexyl)phthalate (DEHP) intake from phthalate-tainted foods in children may be a risk factor for renal dysfunction. DEHP can leach from medical devices such as blood storage bags and the tubing. Long-term exposure to DEHP is associated with nephropathy and exacerbates chronic kidney diseases (CKD) progression. However, the detailed effects and molecular mechanisms remain unclear...
April 14, 2018: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29665969/copeptin-plasma-levels-are-associated-with-decline-of-renal-function-in-patients-with-type-2-diabetes-mellitus
#4
Maria De La Luz Villela-Torres, Ana Edith Higareda-Mendoza, Anel Gómez-García, Alfonso Rafael Alvarez-Paredes, Elvia García-López, Peter Stenvikel, Harvest F Gu, Abbul Rashid-Qureshi, Bengt Lindholm, Cleto Alvarez-Aguilar
BACKGROUND: Chronic kidney disease (CKD) is a leading complication of type 2 diabetes mellitus (T2DM) and is considered as a public health problem. Copeptin is a surrogate marker of arginine vasopressin (AVP) system and is proposed as a biomarker of decline renal function. OBJECTIVE: Evaluate whether plasma copeptin levels may be used as a biomarker of decline renal function in patients with T2DM. RESEARCH DESIGN AND METHODS: A total of 480 patients with T2DM and different stages of CKD were included...
April 14, 2018: Archives of Medical Research
https://www.readbyqxmd.com/read/29661428/effects-of-chronic-physical-activity-on-glomerular-filtration-rate-creatinine-and-the-markers-of-anemia-of-kidney-transplantation-patients
#5
P S Lima, A S D Campos, C S Corrêa, C J M Dias, C T Mostarda, C E N Amorim, A M C Garcia
BACKGROUND: The incidence of anemia in kidney transplantation patients (KTPs) is very common and seems to be associated with the reduction in both renal function and physical exercise tolerance. The purpose of the present study was to compare biochemical markers of anemia and renal function of physically active and sedentary KTPs. METHOD: Serum hemoglobin (Hb), hematocrit (Hct), and serum creatinine (used to derive estimated glomerular filtration rate [eGFR]) were obtained from the medical records of 18 KTPs assisted at the Center for Prevention of Kidney Diseases of the Federal University of Maranhao Hospital...
April 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29655960/systemic-redox-biomarkers-and-their-relationship-to-prognostic-risk-markers-in-autosomal-dominant-polycystic-kidney-disease-and-iga-nephropathy
#6
Ambreen Tariq, Mohammad A Mansoor, Hans-Peter Marti, Grete Jonsson, Audun Slettan, Pabasara Weeraman, Terje Apeland
BACKGROUND: Oxidative stress is evident from an early stage in chronic kidney disease (CKD). Therefore, we investigated redox biomarkers in polycystic kidney disease (ADPKD) and IgA nephropathy (IGAN). METHODS: This is a case-control study with three groups: ADPKD (n = 54), IGAN (n = 58) and healthy controls (n = 86). The major plasma aminothiols with their redox species were examined: homocysteine (Hcy), cysteinglycine (CG), cysteine (Cys) and glutathione (GSH)...
April 12, 2018: Clinical Biochemistry
https://www.readbyqxmd.com/read/29649832/the-impact-of-preexisting-chronic-kidney-disease-on-the-severity-and-recovery-of-acute-kidney-injury
#7
Sung Yoon Lim, Yoon Sook Ko, Hee Young Lee, Ji Hyun Yang, Myung Gyu Kim, Sang Kyung Jo, Won Yong Cho
BACKGROUND: Recent observational studies have shown that in chronic kidney disease (CKD) patients, a significantly smaller percentage of patients with an episode of acute kidney injury (AKI) have full recovery of renal function compared to those without CKD. However, precise mechanisms involved in the incomplete repair after AKI with preexisting CKD have not been completely ascertained. Here, we assessed the impact of preexisting CKD on the severity and recovery of AKI in a mouse model of 5/6 nephrectomy...
April 12, 2018: Nephron
https://www.readbyqxmd.com/read/29644836/elevated-extracellular-nucleosomes-and-their-relevance-to-inflammation-in-stage-5-chronic-kidney-disease
#8
Trung Phan, Ryan McMillan, Leonidas Skiadopoulos, Amanda Walborn, Debra Hoppensteadt, Jawed Fareed, Vinod Bansal
BACKGROUND: Chronic kidney disease is a disorder characterized by a pro-inflammatory state that is associated with increased morbidity and mortality. Endogenous damage- associated molecular patterns, including nucleosomes, may contribute to this persistent inflammation. The aim of this study was to profile and evaluate the clinical significance of circulating nucleosomes in patients with Stage 5 chronic kidney disease (CKD5) on hemodialysis (HD). METHODS: Under institutional review board approval, plasma samples were collected from 90 CKD5-HD patients (45 male and 45 female) prior to hemodialysis...
April 11, 2018: International Angiology: a Journal of the International Union of Angiology
https://www.readbyqxmd.com/read/29626296/real-world-efficacy-and-safety-of-ledipasvir-and-sofosbuvir-in-patients-with-hepatitis-c-virus-genotype-1-infection-a-nationwide-multicenter-study-by-the-japanese-red-cross-liver-study-group
#9
Keiji Tsuji, Masayuki Kurosaki, Jun Itakura, Nami Mori, Shintaro Takaki, Chitomi Hasebe, Takehiro Akahane, Kouji Joko, Hitoshi Yagisawa, Jirou Takezawa, Ryou Nakata, Atsunori Kusakabe, Yuji Kojima, Hiroyuki Kimura, Takashi Tamada, Haruhiko Kobashi, Akeri Mitsuda, Masahiko Kondou, Chikara Ogawa, Yasushi Uchida, Tetsuro Sohda, Ryouichi Narita, Namiki Izumi
BACKGROUND: We aimed to describe the real-world efficacy and safety of combination therapy with ledipasvir and sofosbuvir (LDV/SOF) for chronic hepatitis C virus (HCV) genotype 1 (GT1) infection. METHODS: This retrospective analysis of a prospective, nationwide, multicenter registry included GT1-infected patients treated with LDV/SOF for 12 weeks. We assessed the rate of sustained virological response at 12 weeks post-treatment (SVR12), incidence of adverse events, and serum markers of hepatocellular carcinoma (HCC)...
April 6, 2018: Journal of Gastroenterology
https://www.readbyqxmd.com/read/29620449/low-lean-tissue-mass-can-be-a-predictor-of-one-year-survival-in-hemodialysis-patients
#10
Aleksandra Rymarz, Julia Gibińska, Maria Zajbt, Wiesław Piechota, Stanisław Niemczyk
PURPOSE: Nutritional status has a significant impact on the outcomes in the dialysis population. The aim of this study was to evaluate the association between body composition and a one-year survival of hemodialysis patients. METHODS: Forty-eight patients with chronic kidney disease stage V treated with hemodialysis for more than three months were included. Body composition was assessed by bioimpedance spectroscopy (Body Composition Monitor, Fresenius Medical Care)...
November 2018: Renal Failure
https://www.readbyqxmd.com/read/29616745/in-situ-analysis-of-mast-cells-and-dendritic-cells-in-coronary-atherosclerosis-in-chronic-kidney-disease-ckd
#11
D L Wachter, D Neureiter, V Câmpean, K F Hilgers, M Büttner-Herold, C Daniel, K Benz, K Amann
AIMS: Mast cells (MC) and dendritic cells (DC) have immune modulatory function and can influence T-cell activity. Both cell types have been found in atherosclerotic plaques and are thought to play an important role for plaque stability. Compared to matched segments of the non-renal population, patients with chronic kidney disease (CKD) show a more pronounced and more aggressive course of atherosclerosis with higher plaque calcification and significantly higher complications rates. It was the aim of this study to analyze the number and localization of MCs and DCs, macrophages, T- and B-cells as well as the expression of markers of inflammation such as CRP and NFκB in calcified and non-calcified atherosclerotic plaques of patients with CKD and control patients...
April 4, 2018: Histology and Histopathology
https://www.readbyqxmd.com/read/29616601/does-neutrophil-to-lymphocyte-ratio-demonstrate-deterioration-in-renal-function
#12
Senol Tonyali, Cavit Ceylan, Sedat Yahsi, Mine Sebnem Karakan
INTRODUCTION: Chronic kidney disease (CKD) is a major health issue worldwide, which leads to end-stage renal failure and cardiovascular events. Neutrophil to lymphocyte ratio (NLR) is a surrogate marker of inflammation and has been widely studied in malignancies, hypertension, heart diseases, and vascular diseases. In this study, we aimed to investigate if NLR represents renal reserve and function after partial or radical nephrectomy. METHODS: We conducted a retrospective study consists of patients who had undergone radical/partial nephrectomy in our hospital and/or who admitted to urology and nephrology clinics as an outpatient...
November 2018: Renal Failure
https://www.readbyqxmd.com/read/29608453/time-to-rethink-the-use-of-bone-biopsy-to-prevent-fractures-in-patients-with-chronic-kidney-disease
#13
Carolina Steller Wagner Martins, Vanda Jorgetti, Rosa Maria Affonso Moysés
PURPOSE OF REVIEW: The purpose of this review is to provide evidence to justify the use of bone biopsy data to guide decisions regarding fracture prevention in patients with chronic kidney disease (CKD). To date, no data can support the use of bone biopsy for this purpose. However, we believe that bone turnover, mineralization and volume (TMV) data might help decide, which therapy to use. RECENT FINDINGS: Previous bone biopsy-based prospective and intervention studies have used bone turnover as an outcome measure...
March 31, 2018: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/29603070/high-calcium-phosphate-and-calcitriol-supplementation-leads-to-an-osteocyte-like-phenotype-in-calcified-vessels-and-bone-mineralisation-defect-in-uremic-rats
#14
Sarah-Kim Bisson, Roth-Visal Ung, Sylvain Picard, Danika Valade, Mohsen Agharazii, Richard Larivière, Fabrice Mac-Way
A link between vascular calcification and bone anomalies has been suggested in chronic kidney disease (CKD) patients with low bone turnover disease. We investigated the vascular expression of osteocyte markers in relation to bone microarchitecture and mineralization defects in a model of low bone turnover CKD rats with vascular calcification. CKD with vascular calcification was induced by 5/6 nephrectomy followed by high calcium and phosphate diet, and vitamin D supplementation (Ca/P/VitD). CKD + Ca/P/VitD group (n = 12) was compared to CKD + normal diet (n = 12), control + normal diet (n = 8) and control + Ca/P/VitD supplementation (n = 8)...
March 30, 2018: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/29600966/asymmetric-dimethylarginine-as-a-useful-risk-marker-of-radial-artery-calcification-in-patients-with-advanced-kidney-disease
#15
Marcin Krzanowski, Katarzyna Krzanowska, Mariusz Gajda, Paulina Dumnicka, Grzegorz Kopeć, Bartłomiej Guzik, Karolina Woziwodzka, Artur Dziewierz, Jan A Litwin, Władysław Sułowicz
INTRODUCTION    Medial arterial calcification is common in patients with chronic kidney disease (CKD) and is considered a risk factor for morbidity and mortality. OBJECTIVES    We aimed to evaluate the correlation between asymmetric dimethylarginine (ADMA) levels, radial artery calcification, and common carotid artery intima-media thickness (CCA‑IMT). PATIENTS AND METHODS    The study included 51 patients with CKD, in whom an arteriovenous fistula for hemodialysis access was created to collect radial artery samples for a histological examination, and 33 healthy volunteers, in whom the reference concentrations of ADMA were assessed...
March 29, 2018: Polish Archives of Internal Medicine
https://www.readbyqxmd.com/read/29596954/usefulness-of-glycated-albumin-as-a-biomarker-for-glucose-control-and-prognostic-factor-in-chronic-kidney-disease-patients-on-dialysis-ckd-g5d
#16
REVIEW
Elena Dozio, Valentina Corradi, Marta Proglio, Elena Vianello, Lorenzo Menicanti, Roberta Rigolini, Carlotta Caprara, Massimo de Cal, Massimiliano M Corsi Romanelli, Claudio Ronco
In chronic kidney disease patients on dialysis (CKD-G5D) accurate assessment of glycemic control is vital to improve their outcome and survival. The best glycemic marker for glucose control in these patients is still debated because several clinical and pharmacological factors may affect the ability of the available biomarkers to reflect the patient's glycemic status properly. This review discusses the role of glycated albumin (GA) both as a biomarker for glucose control and as a prognostic factor in CKD-G5D; it also looks at the pros and cons of GA in comparison to the other markers and its usefulness in hemodialysis and peritoneal dialysis...
March 26, 2018: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/29595914/uromodulin-deficiency-alters-tubular-injury-and-interstitial-inflammation-but-not-fibrosis-in-experimental-obstructive-nephropathy
#17
Olena Maydan, Paul G McDade, Yan Liu, Xue-Ru Wu, Douglas G Matsell, Allison A Eddy
Human GWAS and Mendelian genetic studies have linked polymorphic variants and mutations in the human uromodulin gene (UMOD) with chronic kidney disease. The primary function of this kidney-specific and secreted protein remains elusive. This study investigated whether UMOD deficiency modified responses to unilateral ureteral obstruction (UUO)-induced kidney injury. Kidneys harvested from groups of wild-type (UMOD+/+) and knockout (UMOD-/-) male mice (n = 7-10 each) were studied on days 7, 14, and 21. Compared to sham kidneys, UMOD protein levels increased 9-13x after UUO and were associated with increased urinary UMOD levels...
March 2018: Physiological Reports
https://www.readbyqxmd.com/read/29590662/urinary-iron-excretion-is-associated-with-urinary-full-length-megalin-and-renal-oxidative-stress-in-chronic-kidney-disease
#18
Shinya Nakatani, Ayumi Nakatani, Eiji Ishimura, Norikazu Toi, Akihiro Tsuda, Katsuhito Mori, Masanori Emoto, Yoshiaki Hirayama, Akihiko Saito, Masaaki Inaba
BACKGROUND/AIMS: Megalin mediates the uptake of glomerular-filtered iron in the proximal tubules. Urinary full length megalin (C-megalin) excretion has been found to be increased in association with megalin-mediated metabolic load to the endo-lysosomal system in proximal tubular epithelial cells (PTECs) of residual nephrons. In the present study, we investigated the association between urinary iron and C-megalin in chronic kidney disease (CKD) patients, and the possible harmful effect of iron in renal tubules...
March 22, 2018: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29589268/changes-in-trace-elements-during-early-stages-of-chronic-kidney-disease-in-type-2-diabetic-patients
#19
Ching-Chiang Lin, Ching-Tang Shih, Chien-Hung Lee, Yeou-Lih Huang
Trace elements can influence glucose metabolism and be related to oxidative stress in type 2 diabetes mellitus. Moreover, trace elements play important roles in the nephrotic complications of these patients. Nevertheless, few investigations have been made into the changes in the levels of trace elements in diabetic patients at various stages of chronic kidney disease (CKD). The aims of this present study were to determine the levels of some important trace elements in diabetic patients during the early stages of CKD and to identify the relationship between these elements and CKD progression in type 2 diabetic patients...
March 28, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/29581966/impaired-gut-epithelial-tight-junction-expression-in-hemodialysis-patients-complicated-with-intradialytic-hypotension
#20
Tsai-Kun Wu, Paik-Seong Lim, Jong-Shiaw Jin, Ming-Ying Wu, Chang-Hsu Chen
Background: There is accumulating evidence pointing to uremia-induced impairment of the intestinal epithelial barrier structure in advanced chronic kidney disease (CKD) and hemodialysis (HD) patients. In this study, the impact of intradialytic hypotension on intestinal barrier integrity is being explored. Methods: Immunohistochemical staining was used to detect the expression of 4 types of tight junction (TJ) proteins such as occludin, zonula occludens-1 (ZO-1), claudin-1, and claudin-4, in colonic samples of a group of patients receiving segmental colectomy...
2018: BioMed Research International
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