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https://www.readbyqxmd.com/read/29227285/shifts-in-podocyte-histone-h3k27me3-regulate-mouse-and-human-glomerular-disease
#1
Syamantak Majumder, Karina Thieme, Sri N Batchu, Tamadher A Alghamdi, Bridgit B Bowskill, M Golam Kabir, Youan Liu, Suzanne L Advani, Kathryn E White, Laurette Geldenhuys, Karthik K Tennankore, Penelope Poyah, Ferhan S Siddiqi, Andrew Advani
Histone protein modifications control fate determination during normal development and dedifferentiation during disease. Here, we set out to determine the extent to which dynamic changes to histones affect the differentiated phenotype of ordinarily quiescent adult glomerular podocytes. To do this, we examined the consequences of shifting the balance of the repressive histone H3 lysine 27 trimethylation (H3K27me3) mark in podocytes. Adriamycin nephrotoxicity and subtotal nephrectomy (SNx) studies indicated that deletion of the histone methylating enzyme EZH2 from podocytes decreased H3K27me3 levels and sensitized mice to glomerular disease...
December 11, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29226570/campath-calcineurin-inhibitor-reduction-and-chronic-allograft-nephropathy-the-3c-study-results-of-a-randomized-controlled-clinical-trial
#2
Richard Haynes, Lisa Blackwell, Natalie Staplin, William G Herrington, Jonathan Emberson, Parminder K Judge, Benjamin C Storey, Martin J Landray, Paul N Harden, Colin Baigent, Peter Friend
Calcineurin inhibitors (CNI e.g. tacrolimus) reduce short-term kidney transplant failure, but chronic nephrotoxicity may contribute to late transplant loss. Elective conversion to inhibitors of the mammalian target of rapamycin pathway (mTOR e.g. sirolimus) might avoid long-term CNI renal damage and improve outcomes. The 3C Study was a pragmatic randomized controlled trial comprising sequential randomizations between alemtuzumab and basiliximab induction therapy (at the time of surgery) and between tacrolimus and sirolimus maintenance therapy at 6-months post-transplant...
December 11, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/29226122/does-mineralocorticoid-receptor-antagonism-prevent-calcineurin-inhibitor-induced-nephrotoxicity
#3
REVIEW
Line Aas Mortensen, Claus Bistrup, Helle Charlotte Thiesson
Calcineurin inhibitors have markedly reduced acute rejection rates in renal transplantation, thus significantly improved short-term outcome. The beneficial effects are, however, tampered by acute and chronic nephrotoxicity leading to interstitial fibrosis and tubular atrophy, which impairs long-term allograft survival. The mineralocorticoid hormone aldosterone induces fibrosis in numerous organs, including the kidney. Evidence from animal models suggests a beneficial effect of aldosterone antagonism in reducing calcineurin inhibitor-induced nephrotoxicity...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/29225806/renal-artery-intervention-utilizing-carbon-dioxide-angiography
#4
EDITORIAL
Alan A Sag, Baris Afsar, Mehmet Kanbay
Carbon dioxide angiography is an established non-nephrotoxic option for imaging of the infradiaphragmatic arteries and veins. Safe performance of the technique once required a somewhat cumbersome system, however, recent innovations have simplified implementation and expanded the user base for this technique. As such, patient access has also increased. In this issue, Hameed et al. provide initial feasibility data regarding carbon dioxide angiography and renal denervation therapy. This experience may be translated into future renovascular interventions in patients with limited renal reserve...
December 2017: Clinical Kidney Journal
https://www.readbyqxmd.com/read/29225131/role-of-tenofovir-alafenamide-taf-in-the-treatment-and-prophylaxis-of-hiv-and-hbv-infections
#5
REVIEW
Erik De Clercq
Tenofovir (TFV) is the cornerstone in the treatment and prophylaxis of HIV infections. It has been routinely used in its prodrug form TDF (tenofovir disoproxil fumarate) combined with emtricitabine ((-)FTC) and other antiretroviral agents. TDF has now been replaced by TAF (tenofovir alafenamide) which allows better uptake by the lymphoid tissue. In combination with elvitegravir (E), cobicistat (C), emtricitabine (F), TAF can be advocated as an STR (single tablet regimen, Genvoya®) for the treatment of HIV infections...
December 7, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29224791/antioxidant-and-anti-inflammatory-effects-of-virgin-coconut-oil-supplementation-abrogate-acute-chemotherapy-oxidative-nephrotoxicity-induced-by-anticancer-drug-methotrexate-in-rats
#6
Ademola C Famurewa, Patrick M Aja, Ekenechukwu K Maduagwuna, Chima A Ekeleme-Egedigwe, Odomero G Ufebe, Sharon O Azubuike-Osu
BACKGROUND: Methotrexate (MTX) is an efficacious anticancer agent constrained in clinical use due to its toxicity on non-targeted tissue, a considerable source of worry to clinicians. Because the toxicity is associated with oxidative stress and inflammation, the study explored antioxidant and anti-inflammatory effect of virgin coconut oil (VCO) supplementation in nephrotoxicity induced by MTX in rats. METHODS: Rats were randomized into 4 groups (n=6) as follows: Control group; MTX group injected with single dose of MTX (20mg/kg, ip) on day 14; VCO (5%)+MTX and VCO (15%)+MTX groups were pre-treated with VCO diet and injected with single dose of MTX (20mg/kg, ip) on day 14...
December 7, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29219791/effects-of-the-vitamin-d-analog-2amd-in-cyclosporine-induced-nephrotoxicity-dose-response-and-antifibrotic-activity
#7
Bianca Tomasini-Johansson, Cori O'Brien, Alexandra Larson-Osborne, Inger Toraason, Debra Hullett, Lori Plum, Hector DeLuca, Hans Sollinger
OBJECTIVES: In this study, we aimed to ascertain the efficacy and determine the dose effects of a new analog of vitamin D, 2α-methyl-19-nor-(20S)-1α,25-dihydroxyvitamin D3 (2AMD), in decreasing fibrosis and improving renal function in a rat model of kidney disease. MATERIALS AND METHODS: Using the cyclosporine model of chronic kidney disease, we tested 4 dose regimens (2.5, 5, 10, and 20 ng/kg) of 2AMD by subcutaneous administration. The 2AMD analog was compared with another analog, 2-methylene-19-nor-(20S)-1α,25-dihydroxyvitamin D3 (2MD), given at 5 ng/kg...
December 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29218692/euro-b-o-s-s-a-european-study-on-chemotherapy-in-bone-sarcoma-patients-aged-over-40-outcome-in-primary-high-grade-osteosarcoma
#8
Stefano Ferrari, Stefan S Bielack, Sigbjørn Smeland, Alessandra Longhi, Gerlinde Egerer, Kirsten Sundby Hall, Davide Donati, Matthias Kevric, Otte Brosjö, Alessandro Comandone, Mathias Werner, Odd Monge, Emanuela Palmerini, Wolfgang E Berdel, Bodil Bjerkehagen, Anna Paioli, Sylvie Lorenzen, Mikael Eriksson, Marco Gambarotti, Per-Ulf Tunn, Nina L Jebsen, Marilena Cesari, Thekla von Kalle, Virginia Ferraresi, Rudolf Schwarz, Rossella Bertulli, Anne-Katrin Kasparek, Giovanni Grignani, Fatime Krasniqi, Benjamin Sorg, Stefanie Hecker-Nolting, Piero Picci, Peter Reichardt
INTRODUCTION: The EUROpean Bone Over 40 Sarcoma Study (EURO-B.O.S.S.) was the first prospective international study for patients 41-65 years old with high-grade bone sarcoma treated with an intensive chemotherapy regimen derived from protocols for younger patients with high-grade skeletal osteosarcoma. METHODS: Chemotherapy based on doxorubicin, cisplatin, ifosfamide, and methotrexate was suggested, but patients treated with other regimens at the investigators' choice were also eligible for the study...
December 5, 2017: Tumori
https://www.readbyqxmd.com/read/29217887/renal-complications-of-hematopoietic-stem-cell-transplantation-report-of-a-case-and-review-of-the-literature
#9
E Liquete, S R Williamson, N Janakiraman, K K Venkat
We report the development of minimal change disease superimposed on preexisting chronic kidney disease secondary to chronic calcineurin inhibitor nephrotoxicity in a hematopoietic stem cell transplantation (HSCT) recipient and review the renal complications of HSCT.
November 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/29217759/opposing-roles-of-dendritic-cell-subsets-in-experimental-gn
#10
Sebastian Brähler, Bernd H Zinselmeyer, Saravanan Raju, Maximilian Nitschke, Hani Suleiman, Brian T Saunders, Michael W Johnson, Alexander M C Böhner, Susanne F Viehmann, Derek J Theisen, Nicole M Kretzer, Carlos G Briseño, Konstantin Zaitsev, Olga Ornatsky, Qing Chang, Javier A Carrero, Jeffrey B Kopp, Maxim N Artyomov, Christian Kurts, Kenneth M Murphy, Jeffrey H Miner, Andrey S Shaw
Dendritic cells (DCs) are thought to form a dendritic network across barrier surfaces and throughout organs, including the kidney, to perform an important sentinel function. However, previous studies of DC function used markers, such as CD11c or CX3CR1, that are not unique to DCs. Here, we evaluated the role of DCs in renal inflammation using a CD11c reporter mouse line and two mouse lines with DC-specific reporters, Zbtb46-GFP and Snx22-GFP. Multiphoton microscopy of kidney sections confirmed that most of the dendritically shaped CD11c+ cells forming a network throughout the renal interstitium expressed macrophage-specific markers...
December 7, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/29217164/the-protective-role-of-crocin-in-tartrazine-induced-nephrotoxicity-in-wistar-rats
#11
Mehmet Erman Erdemli, Mehmet Gul, Eyup Altinoz, Emrah Zayman, Zeynep Aksungur, Harika Gozukara Bag
The present study was conducted to investigate the changes in rat kidney tissues after administration of tartrazine (T) and crocine (Cr). The latter was applied for its protective properties. The present study was conducted with the approval of Inonu University, Faculty of Medicine, Experimental Animals Ethics Committee. Forty rats were randomly divided into 4 equal groups (Control, T, Cr, T + Cr). At the end of the experiment, the rats were decapitated. Biochemical and histopathological studies were conducted on excised rat kidney tissues...
December 4, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29216766/vanillin-mitigates-the-adverse-impact-of-cisplatin-and-methotrexate-on-rat-kidneys
#12
A A Fouad, W N Al-Melhim
The present study investigated the probable protective effect of vanillin (VLN) against kidney injury induced by cisplatin (CSN) and methotrexate (MTX) in rats. The rats received a single injection of either CSN (7.5 mg/kg, i.p.) or MTX (20 mg/kg, i.p.). VLN treatment (150 mg/kg/day, i.p.) was started 1 day before administration of the nephrotoxic agents and continued for 7 days. Both CSN and MTX significantly increased serum creatinine, cystatin C, and neutrophil gelatinase-associated lipocalin and kidney tissue renal malondialdehyde, inducible nitric oxide synthase, tumor necrosis factor-α, interleukin-18, nuclear factor-κB p65, cytosolic cytochrome C, and caspase-3 and significantly decreased renal total antioxidant capacity and Bcl-2/Bax ratio in rats...
January 1, 2017: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29214717/bisphenol-a-is-an-exogenous-toxin-that-promotes-mitochondrial-injury-and-death-in-tubular-cells
#13
Enrique Bosch-Panadero, Sebastian Mas, Esther Civantos, Pedro Abaigar, Vanesa Camarero, Alberto Ruiz-Priego, Alberto Ortiz, Jesus Egido, Emilio González-Parra
BACKGROUND: Uremic toxins that accumulate in chronic kidney disease (CKD) contribute to CKD complications, such as CKD progression. Bisphenol A (BPA) is a ubiquitous environmental toxin, structurally related with p-cresol, that accumulates in CKD. Our aim was to characterize the nephrotoxic potential of BPA. Specifically, we addressed BPA toxicity over energy-demanding proximal tubular cells. METHODS: Cell death and oxidative stress were evaluated by flow cytometry and confocal microscopy in HK-2 human proximal tubular epithelial cells...
December 7, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/29214169/reversal-of-proximal-renal-tubular-dysfunction-after-nucleotide-analogue-withdrawal-in-chronic-hepatitis-b
#14
Abhasnee Sobhonslidsuk, Pawin Numthavaj, Jirachaya Wanichanuwat, Areepan Sophonsritsuk, Supanna Petraksa, Alongkorn Pugasub, Paisan Jittorntam, Anucha Kongsomgan, Sittiruk Roytrakul, Bunyong Phakdeekitcharoen
Aims: Proximal renal tubular dysfunction (PRTD) is an infrequent complication after nucleotide analogue therapy. We evaluated the outcomes of PRTD and nephrotoxicity after nucleotide analogue withdrawal in chronic hepatitis B (CHB). Methods: A longitudinal follow-up study was performed in patients with PRTD after nucleotide analogue discontinuation. Serum and urine were collected at baseline and every 3 months for one year. The fractional excretion of phosphate (PO4), uric acid (UA), and potassium and tubular maximal reabsorption rate of PO4 to glomerular filtration rate (TmPO4/GFR) were calculated...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29213345/the-management-of-chronic-pulmonary-aspergillosis-the-uk-national-aspergillosis-centre-approach
#15
REVIEW
Firas Maghrabi, David W Denning
Purpose of Review: Chronic pulmonary aspergillosis (CPA) is a serious long-term fungal disease of the lung with a worldwide prevalence. Treatment of CPA is not straightforward given the often-multiple associated co-morbidities, complex clinical picture, drug interactions, toxicities and intolerances. Recent Findings: First line treatment is oral itraconazole or voriconazole. In the event of intolerance or toxicity, patients may be swapped from itraconazole to voriconazole or vice versa...
2017: Current Fungal Infection Reports
https://www.readbyqxmd.com/read/29213265/lactobacillus-plantarum-mys6-ameliorates-fumonisin-b1-induced-hepatorenal-damage-in-broilers
#16
B V Deepthi, Rakesh Somashekaraiah, K Poornachandra Rao, N Deepa, N K Dharanesha, K S Girish, M Y Sreenivasa
Fumonisin B1 (FB1), a mycotoxin produced by Fusarium species is a predominant Group 2B carcinogen occurring in maize and maize-based poultry feeds. It is shown to be nephrotoxic, hepatotoxic, neurotoxic, and immunosuppressing in animals. In this study, we report the ameliorating effects of a probiotic strain, Lactobacillus plantarum MYS6 on FB1-induced toxicity and oxidative damage in broilers. A 6-week dietary experiment consisting of 48 broilers was performed in six treatment groups. Probiotic treatment (109 cells/mL) involved pre-colonization of broilers with L...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29211658/letermovir-prophylaxis-for-cytomegalovirus-in-hematopoietic-cell-transplantation
#17
Francisco M Marty, Per Ljungman, Roy F Chemaly, Johan Maertens, Sanjeet S Dadwal, Rafael F Duarte, Shariq Haider, Andrew J Ullmann, Yuta Katayama, Janice Brown, Kathleen M Mullane, Michael Boeckh, Emily A Blumberg, Hermann Einsele, David R Snydman, Yoshinobu Kanda, Mark J DiNubile, Valerie L Teal, Hong Wan, Yoshihiko Murata, Nicholas A Kartsonis, Randi Y Leavitt, Cyrus Badshah
Background Cytomegalovirus (CMV) infection remains a common complication after allogeneic hematopoietic-cell transplantation. Letermovir is an antiviral drug that inhibits the CMV-terminase complex. Methods In this phase 3, double-blind trial, we randomly assigned CMV-seropositive transplant recipients, 18 years of age or older, in a 2:1 ratio to receive letermovir or placebo, administered orally or intravenously, through week 14 after transplantation; randomization was stratified according to trial site and CMV disease risk...
December 6, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/29210830/tenofovir-associated-nephrotoxicity-among-a-us-national-historical-cohort-of-hiv-infected-veterans-risk-modification-by-concomitant-antiretrovirals
#18
Joanne LaFleur, Adam P Bress, Stephen Esker, Kristin Knippenberg, Jacob Crook, Heather Nyman, Roger Bedimo, Pablo Tebas, Lisa Rosenblatt
BACKGROUND: Tenofovir disoproxil fumarate (TDF) has been associated with renal complications. The third agent in TDF-containing antiretroviral regimens may modify that risk. We compared renal adverse outcomes among treatment-naïve HIV-infected patients initiating TDF-containing regimens including efavirenz (EFV) or other agents. SETTING: This population-based historical cohort study used national Veterans Health Administration (VHA) clinical and administrative datasets to identify treatment-naïve HIV-infected veterans initiating antiretroviral therapy (ART) with TDF/emtricitabine (FTC)+EFV, rilpivirine (RPV), elvitegravir/cobicistat (EVG/c), or ritonavir (RTV)-boosted protease inhibitors (PIs) from 2003-2015...
November 27, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/29209836/accuracy-of-cystatin-c-for-the-detection-of-abnormal-renal-function-in-children-undergoing-chemotherapy-for-malignancy-a-systematic-review-using-individual-patient-data
#19
Penny Whiting, Kate Birnie, Jonathan A C Sterne, Catherine Jameson, Rod Skinner, Bob Phillips
PURPOSE: We conducted a systematic review and individual patient data (IPD) meta-analysis to examine the utility of cystatin C for evaluation of glomerular function in children with cancer. METHODS: Eligible studies evaluated the accuracy of cystatin C for detecting poor renal function in children undergoing chemotherapy. Study quality was assessed using QUADAS-2. Authors of four studies shared IPD. We calculated the correlation between log cystatin C and GFR stratified by study and measure of cystatin C...
December 6, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29209721/effect-of-high-cutoff-hemodialysis-vs-conventional-hemodialysis-on-hemodialysis-independence-among-patients-with-myeloma-cast-nephropathy-a-randomized-clinical-trial
#20
Frank Bridoux, Pierre-Louis Carron, Brigitte Pegourie, Eric Alamartine, Karine Augeul-Meunier, Alexandre Karras, Bertrand Joly, Marie-Noëlle Peraldi, Bertrand Arnulf, Cécile Vigneau, Thierry Lamy, Alain Wynckel, Brigitte Kolb, Bruno Royer, Nolwenn Rabot, Lotfi Benboubker, Christian Combe, Arnaud Jaccard, Bruno Moulin, Bertrand Knebelmann, Sylvie Chevret, Jean-Paul Fermand
Importance: Cast nephropathy is the main cause of acute kidney injury in multiple myeloma and persistent reduction in kidney function strongly affects prognosis. Strategies to rapidly remove nephrotoxic serum-free light chains combined with novel antimyeloma agents have not been evaluated prospectively. Objective: To compare the hemodialysis independence rate among patients newly diagnosed with myeloma cast nephropathy treated with hemodialysis using a high-cutoff dialyzer (with very large membrane pores and high permeability to immunoglobulin light chains) or a conventional high-flux dialyzer (with small pores and lower permeability)...
December 5, 2017: JAMA: the Journal of the American Medical Association
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