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https://www.readbyqxmd.com/read/28526320/mercury-exposure-induces-cytoskeleton-disruption-and-loss-of-renal-function-through-epigenetic-modulation-of-mmp9-expression
#1
Hafizurrahman Khan, Radha Dutt Singh, Ratnakar Tiwari, Siddhartha Gangopadhyay, Somendu Kumar Roy, Dhirendra Singh, Vikas Srivastava
Mercury is one of the major heavy metal pollutants occurring in elemental, inorganic and organic forms. Due to ban on most inorganic mercury containing products, human exposure to mercury generally occurs as methylmercury (MeHg) by consumption of contaminated fish and other sea food. Animal and epidemiological studies indicate that MeHg affects neural and renal function. Our study is focused on nephrotoxic potential of MeHg. In this study, we have shown for the first time how MeHg could epigenetically modulate matrix metalloproteinase 9(MMP9) to promote nephrotoxicity using an animal model of sub chronic MeHg exposure...
May 16, 2017: Toxicology
https://www.readbyqxmd.com/read/28510740/propofol-based-anaesthesia-versus-sevoflurane-based-anaesthesia-for-living-donor-kidney-transplantation-results-of-the-vapor-1-randomized-controlled-trial
#2
G J Nieuwenhuijs-Moeke, V B Nieuwenhuijs, M A J Seelen, S P Berger, M C van den Heuvel, J G M Burgerhof, P J Ottens, R J Ploeg, H G D Leuvenink, M M R F Struys
Background: Kidney transplantation is associated with harmful processes affecting the viability of the graft. One of these processes is associated with the phenomenon of ischaemia-reperfusion injury. Anaesthetic conditioning is a widely described strategy to attenuate ischaemia-reperfusion injury. We therefore conducted the Volatile Anaesthetic Protection of Renal Transplants-1 trial, a pilot project evaluating the influence of two anaesthetic regimens, propofol- vs sevoflurane-based anaesthesia, on biochemical and clinical outcomes in living donor kidney transplantation...
May 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28507626/follow-up-of-value-of-the-intrarenal-resistivity-indices-and-different-renal-biomarkers-for-early-identification-of-diabetic-nephropathy-in-type-1-diabetic-patients
#3
Soha Abd El Dayem, Abo El Magd El Bohy, Mona Hamed, Solaf Ahmed
AIM: To evaluate intrarenal resistivity index (RI) and different biomarkers of diabetic nephropathy (DN) with clinical signs of DN and its progression over time as early detection of DN. PATIENTS AND METHODS: This longitudinal study included 48 type 1 diabetic patients who were studied at baseline and after three years. A blood sample was taken for assessment of glycosylated haemoglobin (HbA1), lipid profile and a urine sample was taken for assessment of albumin/creatinine ratio, Neutrophil gelatinase-associated lipocalin (NGAL), liver-type fatty acid binding protein (L-FABP) and kidney injury molecule-1 (Kim-1) at baseline and after three years...
April 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28503033/15-deoxy-%C3%AE-12-14-prostaglandin-j2-exerts-antioxidant-effects-while-exacerbating-inflammation-in-mice-subjected-to-ureteral-obstruction
#4
Line Nilsson, Fredrik Palm, Rikke Nørregaard
Urinary obstruction is associated with inflammation and oxidative stress, leading to renal dysfunction. Previous studies have shown that 15-deoxy-Δ(12,14)-prostaglandin J2 (15d-PGJ2) has both antioxidant and anti-inflammatory effects. Using a unilateral ureteral obstruction (UUO) mouse model, we examined the effects of 15d-PGJ2 on oxidative stress and inflammation in the kidney. Mice were subjected to UUO for 3 days and treated with 15d-PGJ2. Protein and RNA expression were examined using immunoblotting and qPCR...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28493961/aldosterone-signaling-regulates-the-over-expression-of-claudin-4-and-8-at-the-distal-nephron-from-type-1-diabetic-rats
#5
Eduardo Molina-Jijón, Rafael Rodríguez-Muñoz, Ricardo González-Ramírez, Carmen Namorado-Tónix, José Pedraza-Chaverri, Jose L Reyes
Hyperglycemia in diabetes alters tight junction (TJ) proteins in the kidney. We evaluated the participation of aldosterone (ALD), and the effect of spironolactone (SPL), a mineralocorticoid receptor antagonist, on the expressions of claudin-2, -4, -5 and -8, and occludin in glomeruli, proximal and distal tubules isolated from diabetic rats. Type 1 diabetes was induced in female Wistar rats by a single tail vein injection of streptozotocin (STZ), and SPL was administrated daily by gavage, from days 3-21. Twenty-one days after STZ injection the rats were sacrificed...
2017: PloS One
https://www.readbyqxmd.com/read/28476763/plasma-biomarkers-and-kidney-function-decline-in-early-and-established-diabetic-kidney-disease
#6
Steven G Coca, Girish N Nadkarni, Yuan Huang, Dennis G Moledina, Veena Rao, Jane Zhang, Bart Ferket, Susan T Crowley, Linda F Fried, Chirag R Parikh
Biomarkers of diverse pathophysiologic mechanisms may improve risk stratification for incident or progressive diabetic kidney disease (DKD) in persons with type 2 diabetes. To evaluate such biomarkers, we performed a nested case-control study (n=190 cases of incident DKD and 190 matched controls) and a prospective cohort study (n=1156) using banked baseline plasma samples from participants of randomized, controlled trials of early (ACCORD) and advanced (VA NEPHRON-D) DKD. We assessed the association and discrimination obtained with baseline levels of plasma TNF receptor-1 (TNFR-1), TNFR-2, and kidney injury molecule-1 (KIM-1) for the outcomes of incident DKD (ACCORD) and progressive DKD (VA-NEPHRON-D)...
May 5, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28476556/subclinical-chronic-kidney-disease-modifies-the-diagnosis-of-experimental-acute-kidney-injury
#7
Lena Succar, Timothy J Pianta, Trent Davidson, John W Pickering, Zoltán H Endre
Extensive structural damage within the kidney must be present before serum creatinine increases. However, a subclinical phase of chronic kidney disease (CKD) usually goes undetected. Here we tested whether experimental subclinical CKD would modify functional and damage biomarker profiles of acute kidney injury (AKI). Subclinical CKD was induced in rats by adenine or aristolochic acid models but without increasing serum creatinine. After prolonged recovery (three to six weeks), AKI was induced with a subnephrotoxic dose of cisplatin...
May 2, 2017: Kidney International
https://www.readbyqxmd.com/read/28438765/longitudinal-characterization-of-renal-proximal-tubular-markers-in-normotensive-and-preeclamptic-pregnancies
#8
Elisabeth Codsi, Vesna D Garovic, Maria L Gonzalez-Suarez, Natasa Milic, Kristi S Borowski, Carl H Rose, Norman P Davies, Kianoush 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)...
April 24, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28438648/the-superoxide-dismutase-mimetic-tempol-blunts-diabetes-induced-upregulation-of-nadph-oxidase-and-endoplasmic-reticulum-stress-in-a-rat-model-of-diabetic-nephropathy
#9
Miles J De Blasio, Anand Ramalingam, Anh H Cao, Darnel Prakoso, Ji-Ming Ye, Raelene Pickering, Anna M D Watson, Judy B de Haan, David M Kaye, Rebecca H Ritchie
Endoplasmic reticulum (ER) stress contributes to progression of diabetic nephropathy, which promotes end-stage renal failure in diabetic patients. This study was undertaken to investigate the actions of tempol and ramipril, pharmacological agents that target the consequences of NADPH oxidase, on diabetic nephropathy in a rat model of type 1 diabetes, with an emphasis on markers of ER stress. Male Sprague-Dawley rats were injected intravenously with a single bolus of streptozotocin (55mg/kg) to induce type 1 diabetes...
April 22, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28419138/clinical-significance-of-ngal-and-kim-1-for-acute-kidney-injury-in-patients-with-scrub-typhus
#10
In O Sun, Sung Hye Shin, A Young Cho, Hyun Ju Yoon, Mi Yok Chang, Kwang Young Lee
BACKGROUND: The aim of this study is to investigate the clinical significance of neutrophil gelatinase-associated lipocalin (NGAL) and kidney injury molecule-1 (KIM-1) for acute kidney injury (AKI) in patients with scrub typhus. METHODS: From 2014 to 2015, 145 patients were diagnosed with scrub typhus. Of these, we enrolled 138 patients who were followed up until renal recovery or for at least 3 months. We measured serum and urine NGAL and KIM-1 levels and evaluated prognostic factors affecting scrub typhus-associated AKI...
2017: PloS One
https://www.readbyqxmd.com/read/28413463/diagnostic-value-of-neutrophil-gelatinase-associated-lipocalin-for-renal-injury-in-asphyxiated-preterm-infants
#11
Yu'E Song, Shuzhen Sun, Yonghui Yu, Gang Li, Jia Song, Hong Zhang, Chunmei Yan
The aim of the present study was to analyze the diagnostic value of neutrophil gelatinase-associated lipocalin (NGAL) in renal injury in asphyxiated preterm infants. In total, 48 cases of asphyxiated preterm infants, 45 cases of premature infants and 45 cases of normal newborn infants were included in the study. Using ELISA we evaluated the level of urine NGAL, kidney injury molecule-1 (KIM-1), cystatin C (Cys-C) and serum creatinine (Scr). We also calculated the estimated glomerular filtration rate (eGFR)...
April 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28409285/urinary-calprotectin-kidney-injury-molecule-1-and-neutrophil-gelatinase-associated-lipocalin-for-the-prediction-of-adverse-outcome-in-pediatric-acute-kidney-injury
#12
Jens H Westhoff, Felix S Seibert, Sina Waldherr, Frederic Bauer, Burkhard Tönshoff, Alexander Fichtner, Timm H Westhoff
Early identification of patients with acute kidney injury (AKI) being at high risk for adverse outcome can influence medical treatment. This study compares urinary calprotectin, kidney injury molecule-1 (KIM-1), and neutrophil gelatinase-associated lipocalin (NGAL) for their performance in predicting mortality and need for renal replacement therapy (RRT) in pediatric AKI patients. Urinary biomarker concentrations were assessed prospectively in 141 subjects aged 0-18 years including 55 patients with established AKI according to pediatric Risk, Injury, Failure, Loss, and End-stage kidney disease (pRIFLE) criteria, 27 patients without AKI, and 59 healthy children...
April 14, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28408883/alisol-a-24-acetate-and-alisol-b-23-acetate-induced-autophagy-mediates-apoptosis-and-nephrotoxicity-in-human-renal-proximal-tubular-cells
#13
Chunfei Wang, Liang Feng, Liang Ma, Haifeng Chen, Xiaobin Tan, Xuefeng Hou, Jie Song, Li Cui, Dan Liu, Juan Chen, Nan Yang, Jing Wang, Ying Liu, Bingjie Zhao, Gang Wang, Yuanli Zhou, Xiaobin Jia
Two natural compounds alisol A 24-acetate (24A) and alisol B 23-acetate (23B) are abundant in Rhizoma alismatis. In the present study, we evaluated the induction of 24A and 23B on apoptosis and possible nephrotoxicity of human renal proximal tubular (HK-2) cells by activating autophagy and also explored its regulation on PI3K/Akt/mTOR signaling pathway. Presently, Clusterin, Kim-1, and TFF-3 were considered to be new bioindicators of nephrotoxicity. Interestingly, the protein expression and mRNA levels of Clusterin, Kim-1 and TFF-3 could be significantly increased by 23B and 24A in vivo and in vitro...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28380198/performance-of-urinary-kidney-injury-molecule-1-neutrophil-gelatinase-associated-lipocalin-and-n-acetyl-%C3%AE-d-glucosaminidase-to-predict-chronic-kidney-disease-progression-and-adverse-outcomes
#14
G R Lobato, M R Lobato, F S Thomé, F V Veronese
Urinary biomarkers can predict the progression of chronic kidney disease (CKD). In this study, kidney injury molecule-1 (KIM-1), neutrophil gelatinase-associated lipocalin (NGAL), and N-acetyl-β-D-glucosaminidase (NAG) were correlated with the stages of CKD, and the association of these biomarkers with CKD progression and adverse outcomes was determined. A total of 250 patients, including 111 on hemodialysis, were studied. Urinary KIM-1, NGAL, and NAG were measured at baseline. Patients not on dialysis at baseline who progressed to a worse CKD stage were compared with those who did not progress...
March 30, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28371757/environmental-exposure-to-low-doses-of-ionizing-radiation-effects-on-early-nephrotoxicity-in-mice
#15
Montserrat Bellés, Sergio Gonzalo, Noemí Serra, Roser Esplugas, Meritxell Arenas, José Luis Domingo, Victoria Linares
Nuclear accidents of tremendous magnitude, such as those of Chernobyl (1986) and Fukushima (2011), mean that individuals living in the contaminated areas are potentially exposed to ionizing radiation (IR). However, the dose-response relationship for effects of low doses of radiation is not still established. The present study was aimed at investigating in mice the early effects of low-dose internal radiation exposure on the kidney. Adult male (C57BL/6J) mice were divided into three groups. Two groups received a single subcutaneous (s...
March 31, 2017: Environmental Research
https://www.readbyqxmd.com/read/28365681/bone-marrow-derived-mononuclear-cell-therapy-accelerates-renal-ischemia-reperfusion-injury-recovery-by-modulating-inflammatory-antioxidant-and-apoptotic-related-molecules
#16
Felipe Mateus Ornellas, Débora Santos Ornellas, Sabrina Vargas Martini, Raquel Carvalho Castiglione, Grasiella Maria Ventura, Patrícia R Rocco, Bianca Gutfilen, Sergio A de Souza, Christina Maeda Takiya, Marcelo Marcos Morales
BACKGROUND/AIMS: We investigated the regenerative capacity of intravenous administration of bone marrow-derived mononuclear cells (BMMCs) in a rat model of bilateral renal ischemia/reperfusion (IR) injury and the involvement of inflammatory anti-inflammatory and other biological markers in this process. METHODS: Rats were subjected to 1h bilateral renal pedicle clamping. BMMCs were injected i.v 1h after reperfusion and tracked by 99mTc and GFP+ BMMCs. Twenty-four hours after reperfusion, renal function and histological changes were evaluated...
March 31, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28340076/cisplatin-induced-renal-inflammation-is-ameliorated-by-cilastatin-nephroprotection
#17
Blanca Humanes, Sonia Camaño, Jose Manuel Lara, Venkatta Sabbisetti, María Ángeles González-Nicolás, Joseph V Bonventre, Alberto Tejedor, Alberto Lázaro
Background.: Cisplatin is a potent chemotherapeutic drug whose nephrotoxic effect is a major complication and a dose-limiting factor for antitumoral therapy. There is much evidence that inflammation contributes to the pathogenesis of cisplatin-induced nephrotoxicity. We found that cilastatin, a renal dehydropeptidase-I inhibitor, has protective effects in vitro and in vivo against cisplatin-induced renal damage by inhibiting apoptosis and oxidation. Here, we investigated the potential use of cilastatin to protect against cisplatin-induced kidney injury and inflammation in rats...
March 11, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28337255/combined-therapy-with-melatonin-and-exendin-4-effectively-attenuated-the-deterioration-of-renal-function-in-rat-cardiorenal-syndrome
#18
Kuan-Hung Chen, Chih-Hung Chen, Christopher Glenn Wallace, Yen-Ta Chen, Chih-Chao Yang, Pei-Hsun Sung, Hsin-Ju Chiang, Yi-Ling Chen, Sarah Chua, Hon-Kan Yip, Jiin-Tsuey Cheng
This study tested the hypothesis that combined therapy with melatonin (Mel) and exendin-4 (Ex4) would be superior to either therapy alone for preventing the deterioration of renal function in cardiorenal syndrome (CRS). Male adult Sprague Dawley rats (n = 48) were randomly and equally divided into sham-control (SC), chronic kidney disease (CKD; induced by 5/6 nephrectomy), CRS (CKD + dilated cardiomyopathy, DCM; induced by doxorubicin 7 mg/kg i.p. every 5 days, 4 doses), CRS-Mel (20 mg/kg/day), CRS-Ex4 (10 µg/kg/day) and CRS-Mel-Ex4...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28321043/immunolocalization-of-novel-corticomedullary-tubule-injury-markers-in-cynomolgus-monkeys-treated-with-amphotericin-b
#19
J Eric McDuffie, Jing Ying Ma, Yunhai Zhang, Frederic S Almy, Xiaoyun Wu, Ke Li, Manisha Sonee, Ryan Meng, Michele Rizzolio, Sandra S Snook
Amphotericin B (AmpB) nephrotoxicity was used to assess the utility of drug‑induced kidney injury (DIKI) biomarkers in an exploratory study in male cynomolgus monkeys. All animals had quantifiable levels of AmpB in plasma on days 1 and 4. There were no clinical signs of AmpB‑induced toxicity in this study. The gold standard method used to confirm AmpB‑induced DIKI was anatomic pathology which revealed microscopic lesions with varying grades of severity. Immunolocalization of alpha‑1 microglobulin (α‑1M), kidney injury molecule 1 (KIM‑1), osteopontin (OPN) and neutrophil gelatinase‑associated lipocalin (NGAL) proteins was evaluated in formalin‑fixed, paraffin‑embedded monkey kidney tissue sections...
2017: Journal of Toxicological Sciences
https://www.readbyqxmd.com/read/28315878/dexamethasone-modifies-cystatin-c-based-diagnosis-of-acute-kidney-injury-during-cisplatin-based-chemotherapy
#20
Timothy J Pianta, John W Pickering, Lena Succar, Melvin Chin, Trent Davidson, Nicholas A Buckley, Fahim Mohamed, Zoltan H Endre
BACKGROUND/AIMS: Plasma cystatin C (pCysC) may be superior to serum creatinine (sCr) as a surrogate of GFR. However, the performance of pCysC for diagnosing acute kidney injury (AKI) after cisplatin-based chemotherapy is potentially affected by accompanying corticosteroid anti-emetic therapy and hydration. METHODS: In a prospective observational study pCysC, sCr, urinary kidney injury molecule-1 (KIM-1), and urinary clusterin were measured over 2 weeks in 27 patients given first-cycle chemotherapy...
2017: Kidney & Blood Pressure Research
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