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Acute tubular necrosis

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https://www.readbyqxmd.com/read/29775726/pathological-effects-of-concurrent-administration-of-aflatoxin-b-1-and-fowl-adenovirus-4-in-broiler-chicks
#1
Muhammad Noman Naseem, Muhammad Kashif Saleemi, Ahrar Khan, Aisha Khatoon, Shafia Tehseen Gul, Farzana Rizvi, Ijaz Ahmad, Ahad Fayyaz
The current study was designed to investigate pathological effects fowl adenovirus in broilers exposed to aflatoxin B1 . Fowl Adenovirus-4 (FAdV-4) infection is remerging in all types of poultry birds in Pakistan. Poultry feed contamination with mycotoxin (aflatoxin) is another important global issue. A total of 125 a-day old broiler birds were divided into six equal groups. Group A served as control. B and C groups were administered with aflatoxin B1 (AFB1 ) 100 and 200 μg/kg feed. Group D was infected with FAdV-4 while groups E and F administered with both AFB1 (100 & 200 μg/kg) along with FAdV-4...
May 15, 2018: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29763902/prognostic-factors-of-renal-involvement-in-systemic-sclerosis
#2
Edoardo Rosato, Antonietta Gigante, Biagio Barbano, Maria Ludovica Gasperini, Rosario Cianci, Maurizio Muscaritoli
BACKGROUND/AIMS: Renal involvement is common in systemic sclerosis (SSc), including asymptomatic reduction of glomerular filtration rate (GFR), increased renal resistance indices, scleroderma renal crisis (SRC) and ANCA-associated vasculitis. The aim was to evaluate type and evolution of renal involvement for a period of five years. METHODS: 121 SSc patients (100 F, 21 M) with mean age of 54.9 ± 13.8, disease duration of 9 ± 6 years, of which 62 had a diffused form and 59 limited form were enrolled...
May 10, 2018: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29749549/enhanced-proliferation-and-differentiation-of-ho-1-gene-modified-bone-marrow-derived-mesenchymal-stem-cells-in-the-acute-injured-kidney
#3
Nanmei Liu, Huiling Wang, Guofeng Han, Jin Cheng, Weifeng Hu, Jinyuan Zhang
The aim of the present study was to investigate the effect of heme oxygenase-1 (HO-1) overexpression on the survival and differentiation ability of bone marrow‑derived mesenchymal stem cells (BMSCs) in the acute kidney injury (AKI) microenvironment. HO-1-BMSCs and enhanced green fluorescent protein (eGFP)-BMSCs were constructed. Rat ischemia/reperfusion (I/R)‑AKI-kidney homogenate supernatant was prep-ared to treat the BMSCs, eGFP-BMSCs and HO-1-BMSCs in vitro. In the AKI microenvironment, the HO-1-BMSCs exhibited a smaller proportion of cells at the G0/G1 phase, and a larger proportion of cells expressing proliferating cell nuclear antigen (PCNA) and cytokeratin 18 (CK18)...
May 11, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29731086/crepidiastrum-denticulatum-extract-ameliorates-kidney-ischemia-reperfusion-injury-in-mice
#4
J S Kim, H J Jang, E K Jeong, S S Kim, Y M Kim, J H Lee, M Y Oh, D K Lee, K Yelithao, H C Kwan, C W Nho, D W Eom
BACKGROUND: Crepidiastrum denticulatum (CD) is a well-known, traditionally consumed vegetable in Korea, which was recently reported to contain bioactive compounds with detoxification and antioxidant properties. Ischemia-reperfusion injury (IRI) is a major problem after renal transplantation. Furthermore, inflammatory responses to IRI exacerbate the resultant renal injury. In the present study, we investigated whether CD extract exhibits renoprotective effects against IR-induced acute kidney injury in mice...
May 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29725637/cystatin-c-predicts-renal-recovery-earlier-than-creatinine-among-patients-with-acute-kidney-injury
#5
Kamel A Gharaibeh, Abdurrahman M Hamadah, Ziad M El-Zoghby, John C Lieske, Timothy S Larson, Nelson Leung
Introduction: Serum cystatin C increases earlier than creatinine during acute kidney injury. However, whether cystatin C decreases earlier during recovery is unknown. This retrospective study aimed to determine the temporal trend between creatinine and cystatin C in acute kidney injury. Methods: We identified hospitalized patients with nonoliguric acute kidney injury who had serial creatinine and cystatin C values measured between May 2015 and May 2016. Demographic and laboratory data, causes of acute kidney injury, and relevant comorbidity data were collected through chart review...
March 2018: KI Reports
https://www.readbyqxmd.com/read/29701108/acute-kidney-injury-as-a-condition-of-renal-senescence
#6
Lucia Andrade, Camila E Rodrigues, Samirah A Gomes, Irene L Noronha
Acute kidney injury (AKI), characterized by a sharp drop in glomerular filtration, continues to be a significant health burden because it is associated with high initial mortality, morbidity, and substantial health-care costs. There is a strong connection between AKI and mechanisms of senescence activation. After ischemic or nephrotoxic insults, a wide range of pathophysiological events occur. Renal tubular cell injury is characterized by cell membrane damage, cytoskeleton disruption, and DNA degradation, leading to tubular cell death by necrosis and apoptosis...
January 1, 2018: Cell Transplantation
https://www.readbyqxmd.com/read/29699633/mir-17-92-ameliorates-renal-ischemia-reperfusion-injury
#7
Turun Song, Mianzhi Chen, Zhengsheng Rao, Yang Qiu, Jinpeng Liu, Yamei Jiang, Zhongli Huang, Xianding Wang, Tao Lin
There is limited information on the role of miR-17-92 in renal tubular pathophysiology. Therefore, the present study was performed to determine whether miR-17-92 plays a role in ischemia-reperfusion injury (IRI)-induced acute kidney injury. We originally demonstrated that miR-17-92 is up-regulated following IRI in vivo. To explore the roles of miR-17-92 in the IRI process, we first generated a renal proximal tubule-specific miR-17-92 deletion (PT-miR-17-92-/- ) knockout mouse model with Cre driven by the Kap promoter...
May 2018: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/29693270/uremic-encephalopathy-in-a-rhesus-macaque-macaca-mulatta-a-case-report-and-a-brief-review-of-the-veterinary-literature
#8
REVIEW
Allison Mustonen, Olga Gonzalez, Elda Mendoza, Shyamesh Kumar, Edward J Dick
BACKGROUND: Uremic encephalopathy is uncommon yet is one of the most severe complications of renal failure. We present a case of acute renal failure and associated cerebral and vascular lesions consistent with uremic encephalopathy in a rhesus macaque (Macaca mulatta). METHODS: A 14-year-old, female, specific-pathogen-free rhesus macaque presented in lateral recumbency, obtunded, severely dehydrated, and hypothermic, with severe azotemia, mild hyponatremia, hypokalemia, hypochloremia, increased anion gap, and hypercholesterolemia...
April 25, 2018: Journal of Medical Primatology
https://www.readbyqxmd.com/read/29674665/the-proximal-tubular-%C3%AE-7-nicotinic-acetylcholine-receptor-attenuates-ischemic-acute-kidney-injury-through-akt-pkc-signaling-mediated-ho-1-induction
#9
Hwajin Kim, So Ra Kim, Jihyun Je, Kyuho Jeong, Sooji Kim, Hye Jung Kim, Ki Churl Chang, Sang Won Park
Activation of the α7 nicotinic acetylcholine receptor (α7nAChR) has been shown to attenuate excessive inflammation by inhibiting proinflammatory cytokines during ischemia-reperfusion (IR) injury; however, the underlying kidney-specific molecular mechanisms remain unclear. The protective action of α7nAChR against renal IR injury was investigated using a selective α7nAChR agonist and antagonist. α7nAChR activation reduced plasma creatinine levels and tubular cell damage, whereas α7nAChR inhibition aggravated the IR-induced phenotype...
April 20, 2018: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29607256/the-modern-spectrum-of-biopsy-proven-renal-disease-in-chinese-diabetic-patients-a-retrospective-descriptive-study
#10
Diankun Liu, Ting Huang, Nan Chen, Gang Xu, Ping Zhang, Yang Luo, Yongping Wang, Tao Lu, Long Wang, Mengqi Xiong, Jian Geng, Sheng Nie
Background: Renal biopsies performed in diabetic patients are increasing and becoming more complex. Comprehensive data on modern spectrum of biopsy-proven renal disease in Chinese diabetic patients are lacking. Methods: In a nationwide renal biopsy survey including 71,151 native biopsies from 2004 to 2014, diabetic patients were identified according to the clinical diagnosis from referral records. The clinical data were extracted from referral records and pathological reports...
2018: PeerJ
https://www.readbyqxmd.com/read/29606257/-ifosphamide-nephrotoxicity
#11
Gaël Ensergueix, Alexandre Karras
Ifosfamide is a cytotoxic drug usually used in malignant sarcomas. The nephrotoxicity of this agent has been described essentially among children, revealed by renal failure and proximal tubulopathy. We recently conducted a retrospective multicentre study, describing 34 adult patients admitted for ifosfamide nephrotoxicity. More than 80% of them presented with renal failure, diagnosed up to 48 months after ifosfamide administration. A Fanconi syndrome with hypophosphoremia, hypokaliemia, glucosuria and low-molecular weight proteinuria, was present in two third of all cases...
April 2018: Néphrologie & Thérapeutique
https://www.readbyqxmd.com/read/29604514/renal-involvement-in-fatal-cases-of-chikungunya-virus-infection
#12
Marcela Mercado, Jorge Acosta-Reyes, Edgar Parra, Luis Guzmán, Mauricio Beltrán, Philippe Gasque, Carlos Mejía-García, Diego Viasus
BACKGROUND: Information regarding physiopathology and complications in fatal cases of chikungunya virus (CHIKV) is scarce. OBJECTIVES: The aim of this study was to describe the frequency and severity of renal complications in fatal cases associated with CHIKV infection based on the clinical and histopathological features from post-mortem tissue biopsies. STUDY DESIGN: This retrospective study included fatal cases associated with CHIKV infection occurring from September 2014 through October 2015, reported to National System for Public Health Surveillance (SIVIGILA) and laboratory-confirmed by the National Institute of Health of Colombia...
March 23, 2018: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/29593222/cd4-and-cd8-t-cells-exert-regulatory-properties-during-experimental-acute-aristolochic-acid-nephropathy
#13
Thomas Baudoux, Cécile Husson, Eric De Prez, Inès Jadot, Marie-Hélène Antoine, Joëlle L Nortier, Jean-Michel Hougardy
Experimental aristolochic acid nephropathy is characterized by transient acute proximal tubule necrosis and inflammatory cell infiltrates followed by interstitial fibrosis and tubular atrophy. The respective role of T-cell subpopulations has never been studied in the acute phase of the mouse model, and was heretofore exclusively investigated by the use of several depletion protocols. As compared to mice injected with aristolochic acids alone, more severe acute kidney injury was observed after CD4+ or CD8+ T-cells depletion...
March 28, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29588419/tweak-and-ripk1-mediate-a-second-wave-of-cell-death-during-aki
#14
Diego Martin-Sanchez, Miguel Fontecha-Barriuso, Susana Carrasco, Maria Dolores Sanchez-Niño, Anne von Mässenhausen, Andreas Linkermann, Pablo Cannata-Ortiz, Marta Ruiz-Ortega, Jesus Egido, Alberto Ortiz, Ana Belen Sanz
Acute kidney injury (AKI) is characterized by necrotic tubular cell death and inflammation. The TWEAK/Fn14 axis is a mediator of renal injury. Diverse pathways of regulated necrosis have recently been reported to contribute to AKI, but there are ongoing discussions on the timing or molecular regulators involved. We have now explored the cell death pathways induced by TWEAK/Fn14 activation and their relevance during AKI. In cultured tubular cells, the inflammatory cytokine TWEAK induces apoptosis in a proinflammatory environment...
April 17, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29587650/biopsy-proven-vancomycin-induced-acute-kidney-injury-a-case-report-and-literature-review
#15
Anri Sawada, Kunio Kawanishi, Shohei Morikawa, Toshihiro Nakano, Mio Kodama, Mitihiro Mitobe, Sekiko Taneda, Junki Koike, Mamiko Ohara, Yoji Nagashima, Kosaku Nitta, Takahiro Mochizuki
BACKGROUND: Vancomycin is the first-line antibiotic for methicillin-resistant Staphylococcus aureus and coagulase-negative strains. The risk of vancomycin-induced acute kidney injury increases with plasma vancomycin levels. Vancomycin-induced acute kidney injury is histologically characterized by acute interstitial nephritis and/or acute tubular necrosis. However, only 12 biopsy-proven cases of vancomycin-induced acute kidney injury have been reported so far, as renal biopsy is rarely performed for such cases...
March 27, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29582966/-extra-hepatic-manifestations-associated-with-hepatitis-and-virus-infection
#16
Luca Piscitani, Maria Olimpia Longo, Xhensila Grabocka, Simona Silvestri, Marta Arazzi, Alessandro Pezzutto, Gabriella Micioni, Giorgia Di Fulvio, Lorenzo Ottavio Di Pietro, Alessandra Schiazza, Roberto Di Vito, Mario Bonomini
Hepatitis E virus (HEV) is a significant public health problem that affects almost 20 million individuals annually and cause acute liver injury in 3,5 million. Hepatitis E virus can cause acute, fulminant and chronic hepatitis and has been associated with a range of extrahepatic manifestation. The spectrum of these manifestation is still emerging. Acute pancreatitis and neurological, renal, hematologic, and muscoloskeletal manifestations have been described. Renal injury include membranoproliferative glomerulonephritis with or without cryoglobulinemia, membranous glomerulonephritis and tubular necrosis...
March 2018: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/29559678/transient-receptor-potential-vanilloid-4-channel-deficiency-aggravates-tubular-damage-after-acute-renal-ischaemia-reperfusion
#17
Marwan Mannaa, Lajos Markó, András Balogh, Emilia Vigolo, Gabriele N'diaye, Mario Kaßmann, Laura Michalick, Ulrike Weichelt, Kai M Schmidt-Ott, Wolfgang B Liedtke, Yu Huang, Dominik N Müller, Wolfgang M Kuebler, Maik Gollasch
Transient receptor potential vanilloid 4 (TRPV4) cation channels are functional in all renal vascular segments and mediate endothelium-dependent vasorelaxation. Moreover, they are expressed in distinct parts of the tubular system and activated by cell swelling. Ischaemia/reperfusion injury (IRI) is characterized by tubular injury and endothelial dysfunction. Therefore, we hypothesised a putative organ protective role of TRPV4 in acute renal IRI. IRI was induced in TRPV4 deficient (Trpv4 KO) and wild-type (WT) control mice by clipping the left renal pedicle after right-sided nephrectomy...
March 20, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29550956/imaging-non-vascular-complications-of-renal-transplantation
#18
Nancy Kim, Roxanna Juarez, Angela D Levy
In patients with end-stage renal disease, the treatment of choice for most patients is renal transplantation. Complications that occur after kidney transplant can be broadly divided into vascular and non-vascular categories. Non-vascular complications can further be divided into surgical and medical categories. When evaluating renal transplant imaging, it is helpful to consider the occurrence of complications in a timeline from time of surgery. Ultrasound is often the first modality used for evaluation of renal transplants particularly in the early postoperative period...
March 17, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29534659/refractory-cd20-positive-cellular-rejection-in-living-kidney-transplant-a-case-report-and-review-of-literature
#19
Ahmed I Akl, Hussein A Sheashaa, Mona Abdel Rahim, Muhammed A El Hadedy, Ayman F Refaie
Transplant is the optimal therapy for patients with end-stage renal disease. Acute cellular rejection refractory to treatment remains a major risk factor for graft loss and poor outcomes. In this study, we describe a 39-year-old man who received a living-related kidney transplant. Two days after transplant, the patient displayed acute deterioration of graft function. Conventional anti-rejection therapy was initiated, but graft function did not improve. Biopsy revealed acute cellular rejection (grade IIA), and C4d and HLA antibodies were negative...
March 9, 2018: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29531097/gpr97-exacerbates-aki-by-mediating-sema3a-signaling
#20
Wei Fang, Ziying Wang, Quanxin Li, Xiaojie Wang, Yan Zhang, Yu Sun, Wei Tang, Chunhong Ma, Jinpeng Sun, Ningjun Li, Fan Yi
Background G protein-coupled receptors (GPCRs) participate in a variety of physiologic functions, and several GPCRs have critical physiologic and pathophysiologic roles in the regulation of renal function. We investigated the role of Gpr97, a newly identified member of the adhesion GPCR family, in AKI. Methods AKI was induced by ischemia-reperfusion or cisplatin treatment in Gpr97-deficient mice. We assessed renal injury in these models and in patients with acute tubular necrosis by histologic examination, and we conducted microarray analysis and in vitro assays to determine the molecular mechanisms of Gpr97 function...
May 2018: Journal of the American Society of Nephrology: JASN
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