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Acute tubular necrosis

Salma Malik, Kapil Suchal, Jagriti Bhatia, Sana I Khan, Swati Vasisth, Ameesha Tomar, Sameer Goyal, Rajeev Kumar, Dharamvir S Arya, Shreesh K Ojha
Emblica officinalis Gaertn. belonging to family Euphorbiaceae is commonly known as Indian gooseberry or "Amla" in India. It is used as a 'rejuvenating herb' in traditional system of Indian medicine. It has been shown to possess antioxidant, anti-inflammatory and anti-apoptotic effects. Thus, on the basis of its biological effects, the present study was undertaken to evaluate the protective effect of the dried fruit extract of the E. Officinalis (EO) in cisplatin-induced nephrotoxicity in rats and also to evaluate the mechanism of its nephroprotection...
2016: Frontiers in Pharmacology
Suman Pradhan, Christine Pellino, Kayleigh MacMaster, Dennis Coyle, Alison A Weiss
Seizures and neurologic involvement have been reported in patients infected with Shiga toxin (Stx) producing E. coli, and hemolytic uremic syndrome (HUS) with neurologic involvement is associated with more severe outcome. We investigated the extent of renal and neurologic damage in mice following injection of the highly potent form of Stx, Stx2a, and less potent Stx1. As observed in previous studies, Stx2a brought about moderate to acute tubular necrosis of proximal and distal tubules in the kidneys. Brain sections stained with hematoxylin and eosin (H&E) appeared normal, although some red blood cell congestion was observed...
2016: Frontiers in Cellular and Infection Microbiology
Ramachandran Rameshkumar, Sriram Krishnamurthy, Rajesh Nachiappa Ganesh, Subramanian Mahadevan, Parameswaran Narayanan, Ponnarmeni Satheesh, Puneet Jain
BACKGROUND: Septic acute kidney injury (AKI) accounts for more than half of all cases of AKI in critically ill children. The renal histology was found to alter the management in more than two-third of cases of adult acute renal failure. Better insight into the pathogenesis of pediatric septic AKI could be based on developing a clearer appreciation of the histopathological changes. No comprehensive study of the histopathological features of septic AKI in critically ill children has yet been performed...
October 13, 2016: Clinical and Experimental Nephrology
V A Reva, Y Matsumura, T Hörer, D A Sveklov, A V Denisov, S Y Telickiy, A B Seleznev, E R Bozhedomova, J Matsumoto, I M Samokhvalov, J J Morrison
PURPOSE: The aim of this study is to evaluate the early survival and organ damage following 30 and 60 min of thoracic resuscitative endovascular balloon occlusion of the aorta (REBOA) in an ovine model of severe hemorrhagic shock. METHODS: Eighteen sheep were induced into shock by undergoing a 35 % controlled exsanguination over 30 min. Animals were randomized into three groups: 60-min REBOA 30 min after the bleeding (60-REBOA), 30-min REBOA 60 min after the bleeding (30-REBOA) and no-REBOA control (n-REBOA)...
October 13, 2016: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
Alfredo Seijo, Sergio Giamperetti, Sonia M Ortiz Mayor, María B González, Eugenia S Ortega, Rossana C González
On the fifth day after leaving the Parque Nacional El Rey, province of Salta, Argentina, where she made rural tourism, a woman of Italian origin, aged 47, developed an acute fever followed by a petechial and purpuric rash that progressed rapidly to multiorgan failure. She died on the sixth day after hospitalization. There were references to tick bites and a skin lesion similar to tache noire was found. The autopsy showed generalized vasculitis, ascites, pulmonary edema, acute tubular necrosis and portal centrilobular necrosis...
2016: Medicina
Patricia Huelin, Salvatore Piano, Elsa Solà, Marialuisa Stanco, Cristina Solé, Rebeca Moreira, Elisa Pose, Silvano Fasolato, Nuria Fabrellas, Glòria de Prada, Chiara Pilutti, Isabel Graupera, Xavier Ariza, Antonietta Romano, Chiara Elia, Andrés Cárdenas, Javier Fernández, Paolo Angeli, Pere Ginès
BACKGROUND & AIMS: In patients with cirrhosis of the liver, acute kidney injury (AKI) is classified into 3 stages. Recent studies indicate that there are 2 subgroups of stage 1 disease, associated with different outcomes and serum levels of creatinine (sCr): stage 1A (sCr <1.5 mg/dL) and stage 1B (SCr ≥1.5 mg/dL). We performed a prospective study to validate, in a large series of patients with cirrhosis, the association between this new description and patient outcomes, as well as assess the relationship between AKI stage and the presence of acute-on-chronic liver failure (ACLF)...
October 5, 2016: Clinical Gastroenterology and Hepatology
Marcel P B Jansen, Diba Emal, Gwendoline J D Teske, Mark C Dessing, Sandrine Florquin, Joris J T H Roelofs
Acute kidney injury is often the result of ischemia reperfusion injury, which leads to activation of coagulation and inflammation, resulting in necrosis of renal tubular epithelial cells. Platelets play a central role in coagulation and inflammatory processes, and it has been shown that platelet activation exacerbates acute kidney injury. However, the mechanism of platelet activation during ischemia reperfusion injury and how platelet activation leads to tissue injury are largely unknown. Here we found that renal ischemia reperfusion injury in mice leads to increased platelet activation in immediate proximity of necrotic cell casts...
September 27, 2016: Kidney International
Angelika Url, Verena Krutak, Anna Kübber-Heiss, Sonja Chvala-Mannsberger, Nadia Robert, Nora Dinhopl, Peter Schmidt, Chris Walzer
According to previous studies in captive cheetah ( Acinonyx jubatus ) populations, one of the most threatening diseases besides amyloidosis, myelopathy, veno occlusive disease, and gastritis, is renal failure. Contrary to captive cheetahs in North America and South Africa, morphological data concerning renal lesions in the cheetah European Endangered Species Program (EEP) are lacking. This study details the histological characterization as well as immunohistochemical and morphometrical analysis of nephropathies in 35 captive cheetahs from the EEP, which were necropsied between 1985 and 2003...
September 2016: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
Hernando Gómez, John A Kellum
PURPOSE OF REVIEW: Sepsis is a common and frequently fatal condition in which mortality has been consistently linked to increasing organ dysfunction. For example, acute kidney injury (AKI) occurs in 40-50% of septic patients and increases mortality six to eight-fold. However, the mechanisms by which sepsis causes organ dysfunction are not well understood and hence current therapy remains reactive and nonspecific. RECENT FINDINGS: Recent studies have challenged the previous notion that organ dysfunction is solely secondary to hypoperfusion, by showing, for example, that AKI occurs in the setting of normal or increased renal blood flow; and that it is characterized not by acute tubular necrosis or apoptosis, but rather by heterogeneous areas of colocalized sluggish peritubular blood flow and tubular epithelial cell oxidative stress...
September 22, 2016: Current Opinion in Critical Care
Avik Sarkar, Ragui Sadek, Matthew Lissauer, Swati Pawa
BACKGROUND: After an acute attack of pancreatitis, walled-off pancreatic fluid collections (PFC) occur in approximately 10 % of cases. Drainage of the cavity is recommended when specific indications are met. Endoscopic drainage has been adopted as the main intervention for symptomatic walled-off PFC. Altered gastric anatomy in these patients poses an interesting challenge. We present the first case of a patient with sleeve gastrectomy who underwent successful endoscopic transduodenal necrosectomy (TDN)...
2016: BMC Obesity
Qiufa Hao, Xiaoyan Xiao, Junhui Zhen, Jinbo Feng, Chun Song, Bei Jiang, Zhao Hu
Acute kidney injury is a clinical syndrome characterized by a loss of renal function and acute tubular necrosis. Resveratrol exerts a wide range of pharmacological effects based on its anti‑inflammatory, antioxidant and cytoprotective properties. The present study aimed to evaluate whether resveratrol attenuates acute kidney injury in a cisplatin‑induced rat model and to investigate the potential mechanisms involved. Rats were randomly divided into four treatment groups: control, cisplatin, resveratrol, and cisplatin plus resveratrol...
October 2016: Molecular Medicine Reports
Irfan Zia Qureshi, Asia Bibi, Sana Shahid, Madiha Ghazanfar
Use of pesticides or insecticides can be highly toxic to aquatic life forms due to leaching and agricultural runoff, rains or flood. Fipronil (FP) is a GABA receptor inhibitor, while buprofezin (BPFN) is an insect growth regulator. Presently, we exposed groups of aquaria acclimated carp fish (Cyprinus carpio) for 96h to sub-lethal concentrations of fipronil (400μgL(-1); 9.15×10(-7)molL(-1)) and buprofezin (BPFN, 100mgL(-1); 1.072×10(-6)molL(-1)) singly or in combination. The extent of damage was assessed at biochemical, hematological, molecular biological and histopathological level...
October 2016: Aquatic Toxicology
Carlos Arias-Cabrales, Dolores Redondo-Pachón, María José Pérez-Sáez, Javier Gimeno, Ignacio Sánchez-Güerri, Sheila Bermejo, Adriana Sierra, Carla Burballa, Marisa Mir, Marta Crespo, Julio Pascual
INTRODUCTION: The impact of acute rejection in kidney graft survival is well known, but the prognosis of other diagnoses is uncertain. We evaluated the frequency and impact on graft survival of different diagnostic categories according to the Banff 2013 classification in a cohort of renal transplant recipients. MATERIAL AND METHODS: Retrospective study of 495 renal biopsies by indication in 322 patients from 1990-2014. Two independent observers reviewed the histological reports, reclassifying according to the Banff 2013 classification...
August 29, 2016: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
Hefziba Green, Ana Tobar, Anat Gafter-Gvili, Leonard Leibovici, Tirza Klein, Ruth Rahamimov, Eytan Mor, Alon Grossman
BACKGROUND: Serum lactate dehydrogenase (LDH) levels may help to distinguish ischemic acute tubular necrosis (ATN) from acute rejection after kidney transplantation. METHODS: All kidney biopsies performed in the years 2010 to 2012 were reviewed. Serum LDH, creatinine level, clinical variables, and presence of donor-specific antibodies were recorded before the biopsy. RESULTS: Overall 150 biopsies were included. Ischemic ATN was diagnosed in 45 biopsies and acute cellular-mediated rejection and/or antibody-mediated rejection in 59 biopsies, 38 of which were accompanied by ATN...
August 23, 2016: Progress in Transplantation
Sammy Saab, Melissa A Jimenez, Sherona N Bau, Gina Choi, Francisco A Durazo, Mohammed M El-Kabany, Steven-Huy B Han, Ronald W Busuttil
BACKGROUND: The use of direct acting agents has changed the management paradigm of hepatitis C (HCV) in liver transplant (LT) recipients. However, the appropriate antiviral regimen in LT recipients on hemodialysis (HD) remains unclear. METHODS: We retrospectively evaluated the safety and efficacy of sofosbuvir-based LT recipients on HD followed at the University of California Los Angeles. RESULTS: Twelve LT recipients on HD were treated for recurrent HCV with sofosbuvir-based therapy...
August 19, 2016: Journal of Clinical Gastroenterology
Fernando Peixoto Ferraz de Campos, Vitor Sérgio Kawabata, Márcio Sommer Bittencourt, Silvana Maria Lovisolo, Aloísio Felipe-Silva, Ana Paula Silva de Lemos
The incidence of severe complications of the Neisseria gonorrhoeae infection has presented variations over recent decades since the advent of penicillin. Gonococcal endocarditis (GE) still remains an ever-present threat afflicting the society's poor and sexually active young population. This entity frequently requires surgical intervention and usually exhibits a poor outcome. The interval between the onset of symptoms and the diagnosis does not usually exceed 4 weeks. One of the characteristics of GE is a proclivity for aortic valve involvement with large vegetation and valve ring abscess formation...
April 2016: Autopsy & case reports
Bruno Moulin
Cardiorenal syndromes refer to clinical and metabolic consequences of acute and chronic heart failure or kidney disease on other organ. Recent studies have further clarified the pathophysiological mechanisms behind the different types of cardiorenal syndromes and propose a new classification. The cardiorenal syndrome type 1 corresponds to an acute heart failure (cardiogenic shock, acute decompensated congestive heart failure) which induces acute renal dysfunction. In the cardiorenal syndrome type 2 heart failure is chronic (congestive heart failure) and induces chronic kidney damages in the long-term...
June 2016: La Revue du Praticien
Akina Nara, Daisuke Yajima, Sayaka Nagasawa, Hiroko Abe, Yumi Hoshioka, Hirotaro Iwase
Rhabdomyolysis is characterised by acute kidney injury (AKI) resulting from skeletal muscle injury. Lipid peroxidation-mediated oxidant injury and pro-inflammatory cytokine-mediated inflammatory response play critical roles in the pathogenesis of rhabdomyolysis-induced AKI. The present study aimed to investigate the short-term effects of both lipid peroxidation and inflammatory responses on rhabdomyolysis-induced AKI in a rat model of glycerol-induced rhabdomyolysis. Rhabdomyolysis was induced by the intramuscular injection of 50% glycerol in saline (10 mL/kg) into the hind limbs of rats...
August 16, 2016: Clinical and Experimental Pharmacology & Physiology
Parisa Valipour, Esfandiar Heidarian, Abolfazl Khoshdel, Mostafa Gholami-Arjenaki
INTRODUCTION: Gentamicin can lead to acute tubular injury and kidney dysfunction. This study aimed to evaluate the effect of Ferulago angulata on kidney function and other markers in rats with gentamicin-induced nephrotoxicity. MATERIALS AND METHODS: Forty-eight male Wistar rats were divided into the following groups: group 1, the controls; group 2, rats receiving gentamicin (120 mg/kg body weight per day, intraperitoneal) for 7 days without treatment; groups 3, 4 and 5, rats receiving gentamicin for 7 days and oral treatment with 200 mg/kg, 400 mg/kg, and 800 mg/kg body weight per day of Ferulago angulate extract, respectively...
July 2016: Iranian Journal of Kidney Diseases
Weiyan Lai, Ying Tang, Xiao R Huang, Patrick Ming-Kuen Tang, Anping Xu, Alexander J Szalai, Tan-Qi Lou, Hui Y Lan
Acute kidney injury (AKI) is exacerbated in C-reactive protein transgenic mice but alleviated in Smad3 knockout mice. Here we used C-reactive protein transgenic/Smad3 wild-type and C-reactive protein transgenic/Smad3 knockout mice to investigate the signaling mechanisms by which C-reactive protein promotes AKI. Serum creatinine was elevated, and the extent of tubular epithelial cell necrosis following ischemia/reperfusion-induced AKI was greater in C-reactive protein transgenics but was blunted when Smad3 was deleted...
September 2016: Kidney International
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