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Renal histopathology

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https://www.readbyqxmd.com/read/28650114/the-effect-of-adhesives-on-inflammatory-immune-markers-during-renal-injury-healing
#1
José Miguel Lloris-Carsí, Carlos Barrios, Beatriz Prieto-Moure, José Miguel Lloris-Cejalvo, Dolores Cejalvo-Lapeña
Renal injury is common in abdominal trauma. Adhesives and sealants can be used to repair and preserve damaged organs. We describe the effect of three biomaterial treatments (TachoSil, GelitaSpon, and Adhflex) on injured renal tissue. Renal traumatic injuries were experimentally induced in male Wistar rats (n = 90) using a punch. Animals were divided into five groups: (1) sham noninjured (n = 3) and punch injury groups; (2) nontreated (n = 6); (3) TachoSil (n = 27); (4) GelitaSpon (n = 27); and (5) Adhflex (n = 27)...
June 26, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28646482/clinical-serological-and-histological-determinants-of-patient-and-renal-outcome-in-anca-associated-vasculitis-with-renal-involvement-an-analysis-from-a-referral-centre
#2
Matija Crnogorac, Ivica Horvatic, Luka Toric, Danica Galesic Ljubanovic, Miroslav Tisljar, Krešimir Galesic
PURPOSE: To evaluate significance of clinical and histopathological prognostic factors for renal and patient outcome in AAV patient cohort. METHODS: Retrospective study included consecutive patients diagnosed with pauci-immune crescentic glomerulonephritis from January 2003 to December 2013. Primary outcome was combined endpoint patient death or progression to end-stage renal disease (ESRD). Secondary outcomes were patient survival and progression to ESRD (renal survival) singularly and disease relapse...
June 23, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28644089/evaluation-of-high-dosages-of-oral-meloxicam-in-american-kestrels-falco-sparverius
#3
Noémie M Summa, David Sanchez-Migallon Guzman, Sylvain Larrat, Eric Troncy, David M Bird, Stéphane Lair, Guy Fitzgerald
To evaluate the toxicity of short-term high doses of meloxicam in American kestrels ( Falco sparverius ), 32 male captive-born, 1- to 4-year-old American kestrels were randomly assigned to 4 groups: 3 groups treated with meloxicam (n = 9 per group) and a control group (n = 5). Meloxicam was administered orally via feeding tube in the proventriculus at 2, 10, and 20 mg/kg every 12 hours for 7 days for the treatment groups, while the control group received saline solution. The birds were evaluated for the presence of clinical signs, abnormalities in the complete blood cell count and in the plasma biochemical panel for the 20-mg/kg group, and gross and histopathologic lesions...
June 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/28639746/acute-changes-in-histopathology-and-intravascular-imaging-after-catheter-based-renal-denervation-in-a-porcine-model
#4
Atsushi Sakaoka, Akiyuki Takami, Yuji Onimura, Hitomi Hagiwara, Hisako Terao, Fumiaki Kumagai, Kiyoshi Matsumura
OBJECTIVES: We first aimed to identify the histopathological changes occurring immediately after renal denervation (RDN) with radiofrequency energy, and then to assess the feasibility of determining procedural success using currently available clinical intravascular imaging techniques. BACKGROUND: Catheter-based RDN has been used as an alternative therapy for hypertension. However, no practical endpoint to determine procedural success during treatment has been established...
June 22, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28632809/acquired-epidermodysplasia-verruciformis-occurring-in-a-renal-transplant-recipient
#5
Jill K Henley, Eric W Hossler
Acquired epidermodysplasia verruciformis (EDV) is a rare condition occurring in patients with depressed cellular immunity, particularly individuals with human immunodeficiency virus (HIV). Acquired EDV is less commonly reported in recipients of stem cell or solid organ transplantation. This condition typically manifests within 5 years of initial immunosuppression and can present as multiple hypopigmented to red, tinea versicolor-like macules or as multiple verrucous, flat-topped papules distributed over the trunk, arms, and legs...
May 2017: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/28631081/diffusion-weighted-imaging-versus-contrast-enhanced-mr-imaging-for-the-differentiation-of-renal-oncocytomas-and-chromophobe-renal-cell-carcinomas
#6
Yan Zhong, Haiyi Wang, Yanguang Shen, Aitao Guo, Jia Wang, Suhai Kang, Lu Ma, Jingjing Pan, Huiyi Ye
OBJECTIVES: To compare the performance of diffusion-weighted imaging (DWI) with that of contrast-enhanced MRI in differentiating renal oncocytomas from chromophobe renal cell carcinomas (RCCs). METHODS: We recruited 48 patients with histopathologically confirmed renal oncocytomas (n=16) and chromophobe RCCs (n=32). All patients underwent preoperative DWI and contrast-enhanced MRI. Apparent diffusion coefficient (ADC) and signal intensity were measured in each patient...
June 19, 2017: European Radiology
https://www.readbyqxmd.com/read/28627643/niclosamide-attenuates-inflammatory-cytokines-via-the-autophagy-pathway-leading-to-improved-outcomes-in-renal-ischemia-reperfusion-injury
#7
Lin-Xia Zhang, Hui-Juan Zhao, Dong-Li Sun, Shan-Lin Gao, Hong-Mei Zhang, Xin-Guo Ding
Renal ischemia/reperfusion (I/R) injury is a debilitating condition that leads to loss renal function and damage to kidney tissue in the majority of patients with acute kidney disease. Previous studies have indicated that autophagy serves a protective function in renal I/R injury. In the present study, the effect of the anthelmintic niclosamide in the regulation of inflammatory responses in kidney I/R was investigated. A total of 40 Sprague-Dawley rats were randomly divided into the following 5 groups (n=8 in each group): Sham group; renal I/R injury; renal I/R injury plus 3‑methyladenine (3‑MA) treatment (15 mg/kg); renal I/R injury plus niclosamide (25 mg/kg); and renal I/R injury plus rapamycin (10 mg/kg)...
June 14, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28627620/protective-effect-of-human-serum-amyloid-p-on-ccl4-induced-acute-liver-injury-in-mice
#8
Min Cong, Weihua Zhao, Tianhui Liu, Ping Wang, Xu Fan, Qingling Zhai, Xiaoli Bao, Dong Zhang, Hong You, Tatiana Kisseleva, David A Brenner, Jidong Jia, Hui Zhuang
Human serum amyloid P (hSAP), a member of the pentraxin family, inhibits the activation of fibrocytes in culture and inhibits experimental renal, lung, skin and cardiac fibrosis. As hepatic inflammation is one of the causes of liver fibrosis, in the present study, we investigated the hepatoprotective effects of hSAP against carbon tetrachloride (CCl4)-induced liver injury. Our data indicated that hSAP attenuated hepatic histopathological abnormalities and significantly decreased inflammatory cell infiltration and pro-inflammatory factor expression...
June 14, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28626544/atypical-hemolytic-uremic-syndrome-a-brief-review
#9
REVIEW
Kuixing Zhang, Yuxin Lu, Kevin T Harley, Minh-Ha Tran
Atypical hemolytic uremic syndrome (aHUS) is a disease characterized by the triad of microangiopathic hemolytic anemia, thrombocytopenia and acute kidney injury. The histopathologic lesions of aHUS include thrombotic microangiopathy involving the glomerular capillaries and thrombosis involving arterioles or interlobar arteries. Extra-renal manifestations occur in up to 20% of patients. The majority of aHUS is caused by complement system defects impairing ordinary regulatory mechanisms. Activating events therefore lead to unbridled, ongoing complement activity producing widespread endothelial injury...
June 1, 2017: Hematology Reports
https://www.readbyqxmd.com/read/28625023/-studyon-renal-cell-carcinoma-detected-by-abdominal-ultrasonography-during-routine-health-check-up
#10
Masahito Ishikawa, Ayae Kawakami, Kohei Sakuraba, Sae Tanaka, Yoichi Yamamoto, Tateru Ishida, Mitsuru Kawarasaki, Toshihiro Ootaki, Shigeru Ozasa
We performed a study on renal cell carcinoma (RCC) detected by abdominal ultrasonography during routine health check-up at Sapporo Teishin Hospital. The study included a total of 13,127 ultrasonographic examinations performed on 4,339 patients who visited our hospital for routine health check-ups during a 21- year period from April 1995 to March 2016. RCC was suspected from ultrasonographic findings and later histopathologically diagnosed in 11 patients in this group (detection rate 0.25%). Patients were male, aged 37 to 64 (median, 52...
May 2017: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/28624472/nonclinical-safety-of-astilbin-a-4-week-oral-toxicity-study-in-rats-with-genotoxicity-chromosomal-aberration-and-mammalian-micronucleus-tests
#11
Yonglin Gao, Chunmei Li, Yunzhi Wang, Yunguo Liu, Guisheng Li, Xiaochen Fan, Yanshen Li, Jingwei Tian, Albert W Lee
Astilbin is an active flavonoid compound isolated from Rhizoma Smilacis Glabrae. It has been widely used as an anti-hepatic, anti-arthritic, and anti-renal injury agent. However, its safety has not yet been established. The objective of this study was to evaluate 4-week repeated oral toxicity and genotoxicity of astilbin. We examined oral toxicity in Sprague-Dawley rats after daily oral administration of astilbin at 50, 150, and 500 mg/kg for 4 weeks. Negative control animals received the same volume of the solvent...
June 15, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28624062/diosmetin-protects-against-ischemia-reperfusion-induced-acute-kidney-injury-in-mice
#12
Kang Yang, Wei-Fang Li, Jun-Feng Yu, Cheng Yi, Wei-Feng Huang
BACKGROUND: Renal ischemia/reperfusion (I/R)-induced acute kidney injury remains to be a troublesome condition in clinical practice. Although the exact molecular mechanisms underlying renal I/R injury are incompletely understood, the deleterious progress of renal I/R injury involves inflammation, apoptosis, and oxidative stress. Diosmetin is a member of the flavonoid glycosides family, which suppresses the inflammatory response and cellular apoptosis and enhances antioxidant activity...
June 15, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28622333/acute-40-exchange-transfusion-with-hemoglobin-vesicles-in-a-mouse-pneumonectomy-model
#13
Mitsutomo Kohno, Tatsuhiko Ikeda, Ryo Hashimoto, Yotaro Izumi, Masazumi Watanabe, Hirohisa Horinouchi, Hiromi Sakai, Koichi Kobayashi, Masayuki Iwazaki
OBJECTIVES: Hemoglobin vesicles (HbVs) function as a red blood cell (RBC) substitute and are composed of purified hemoglobin encapsulated in a phospholipid bilayer membrane. The performance of HbVs as a substitute for RBC transfusions was examined in a mouse model of pneumonectomy following acute 40% exchange-transfusion with HbVs. METHODS: Before performing left pneumonectomies, 40% of the blood volume of mice was replaced with a) lactated Ringer's solution (control), b) 5% recombinant human serum albumin (rHSA), c) mouse RBCs shed in rHSA (mRBCs/rHSA), or d) HbV suspended in rHSA (HbV/rHSA)...
2017: PloS One
https://www.readbyqxmd.com/read/28621010/diversity-of-renal-phenotypes-in-patients-with-wdr19-mutations-two-case-reports
#14
Takahisa Yoshikawa, Koichi Kamei, Hiroko Nagata, Ken Saida, Mai Sato, Masao Ogura, Shuichi Ito, Osamu Miyazaki, Maki Urushihara, Shuji Kondo, Noriko Sugawara, Kiyonobu Ishizuka, Yuko Hamasaki, Seiichiro Shishido, Naoya Morisada, Kazumoto Iijima, Michio Nagata, Takako Yoshioka, Kentaro Ogata, Kenji Ishikura
WDR19 has been reported as a causative gene of nephronophthisis-related ciliopathies. Patients with WDR19 mutations can show various extrarenal manifestations such as skeletal disorders, Caroli disease, and retinal dystrophy, and typically display nephronophthisis as a renal phenotype. However, there is limited information on the renal phenotypes of patients with WDR19 mutations. We report two Japanese infants with Sensenbrenner syndrome caused by WDR19 mutations who demonstrated different features in renal ultrasound and histopathological results, despite several common extrarenal manifestations...
July 2017: Nephrology
https://www.readbyqxmd.com/read/28620270/flucytosine-and-amphotericin-b-coadministration-induces-dose-related-renal-injury
#15
Alexandra Folk, Cornel Balta, Hildegard Herman, Alexandra Ivan, Oana Maria Boldura, Lucian Paiusan, Aurel Ardelean, Anca Hermenean
Invasive fungal infections remain an important clinical problem, and despite recent approaches, they bring high morbidity and mortality. Combination therapies are the most effective; however, adverse effects need to be considered. In this study, we aimed to evaluate the nephrotoxicity induced by combined therapy of flucytosine (FL) and amphotericin B (AMF) at 3 different doses administered to mice for 14 days: 300 μg/kg AMF+50 mg/kg FL; 600 μg/kg AMF+100 mg/kg FL; 900 μg/kg AMF+150 mg/kg FL. Antifungal coadministration triggered nuclear translocation of NF-κB and upregulated nuclear factor kappa-light-chain-enhancer of activated B cells subunit p65 (NF-κB p65) messenger RNA mRNA level in dose-dependent manner...
April 2017: Dose-response: a Publication of International Hormesis Society
https://www.readbyqxmd.com/read/28619631/histopathologic-analysis-of-tumor-bed-and-peritumoral-pseudocapsule-after-in-vitro-tumor-enucleation-on-radical-nephrectomy-specimen-for-clinical-t1b-renal-cell-carcinoma
#16
Qun Lu, Changwei Ji, Xiaozhi Zhao, Yao Fu, Suhan Guo, Guangxiang Liu, Shiwei Zhang, Xiaogong Li, Weidong Gan, Hongqian Guo
PURPOSE: This study was designed to assess the feasibility and histopathologic safety of tumor enucleation for renal cell carcinoma, through histopathologic analysis of the tumor bed and peritumoral pseudocapsule (PC) after in vitro tumor enucleation. MATERIALS AND METHODS: We studied 176 radical nephrectomy specimens for clinical T1b renal cell carcinoma in our institution, from January 2013-February 2016. Immediately after the kidney was excised, the tumor of radical specimen was enucleated in vitro...
June 12, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28616648/protective-effect-of-dietary-polyphenol-caffeic-acid-on-ethylene-glycol-induced-kidney-stones-in-rats
#17
Fauzia Yasir, Atia-Tul- Wahab, M Iqbal Choudhary
Dietary polyphenol caffeic acid (1) has been reported for various pharmacological activities. The aim of the current study was to investigate the effect of caffeic acid (1) on ethylene glycol-induced renal stones in rats. For the study, male Wistar rats were divided into seven groups; normal, pathological, and standard drug controls, and preventive and curative groups. Normal control group received drinking water for 8 weeks. Pathological, standard drug, preventive, and curative groups received 0.75% ethylene glycol in drinking water for the induction of calcium oxalate stone formation, along with the regular diet...
June 14, 2017: Urolithiasis
https://www.readbyqxmd.com/read/28615647/differential-synchrotron-x-ray-imaging-markers-based-on-the-renal-microvasculature-for-tubulointerstitial-lesions-and-glomerulopathy
#18
Yu-Chuan Lin, Yeukuang Hwu, Guo-Shu Huang, Michael Hsiao, Tsung-Tse Lee, Shun-Min Yang, Ting-Kuo Lee, Nan-Yow Chen, Sung-Sen Yang, Ann Chen, Shuk-Man Ka
High resolution synchrotron microtomography capable of revealing microvessels in three dimensional (3D) establishes distinct imaging markers of mouse kidney disease strongly associated to renal tubulointerstitial (TI) lesions and glomerulopathy. Two complementary mouse models of chronic kidney disease (CKD), unilateral ureteral obstruction (UUO) and focal segmental glomerulosclerosis (FSGS), were used and five candidates of unique 3D imaging markers were identified. Our characterization to differentially reflect the altered microvasculature of renal TI lesions and/or glomerulopathy demonstrated these image features can be used to differentiate the disease status and the possible cause therefore qualified as image markers...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28614212/phosphaturic-mesenchymal-tumors-clinicopathologic-immunohistochemical-and-molecular-analysis-of-22-cases-expanding-their-morphologic-and-immunophenotypic-spectrum
#19
Abbas Agaimy, Michael Michal, Simion Chiosea, Fredrik Petersson, Ladislav Hadravsky, Glenn Kristiansen, Raymund E Horch, Jan Schmolders, Arndt Hartmann, Florian Haller, Michal Michal
Phosphaturic mesenchymal tumor (PMT) is a rare neoplasm of uncertain histogenesis that has been linked to tumor-induced osteomalacia (TIO) since 1959. The neoplastic cells produce increased amount of FGF23 which results in TIO via uncontrolled renal loss of phosphate (phosphaturia), and consequently diminished bone mineralization. To date, ∼300 cases have been reported. Although there is increasing evidence that PMT can be diagnosed by reproducible histopathologic features, firm diagnosis has been often restricted to cases associated with TIO and, hence, diagnosis of "nonphosphaturic variants" remained challenging...
June 13, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28613240/an-isoform-of-nedd4-2-plays-a-pivotal-role-in-electrophysiological-cardiac-abnormalities
#20
Shintaro Minegishi, Tomoaki Ishigami, Hisho Kawamura, Tabito Kino, Lin Chen, Rie Nakashima-Sasaki, Hiroshi Doi, Kengo Azushima, Hiromichi Wakui, Yumi Chiba, Kouichi Tamura
We have previously shown that neural precursor cell-expressed developmentally downregulated gene 4-2 (Nedd4-2) isoforms with a C2 domain are closely related to ubiquitination of epithelial sodium channel (ENaC), resulting in salt-sensitive hypertension by Nedd4-2 C2 targeting in mice. The sodium voltage-gated channel alpha subunit 5 (SCN5A) gene encodes the α subunit of the human cardiac voltage-gated sodium channel (I Na), and the potassium voltage-gated channel subfamily H member 2 (KCNH2) gene encodes rapidly activating delayed rectifier K channels (I Kr)...
June 14, 2017: International Journal of Molecular Sciences
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