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Renal histopathology

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https://www.readbyqxmd.com/read/29908046/sepsis-induced-acute-kidney-injury-a-disease-of-the-microcirculation
#1
Shuai Ma, Roger G Evans, Naoya Iguchi, Marianne Tare, Helena C Parkington, Rinaldo Bellomo, Clive N May, Yugeesh R Lankadeva
Acute kidney injury (AKI) is a common complication of sepsis and is significantly associated with mortality. Sepsis accounts for more than 50% of the cases of AKI, with a mortality rate of up to 40%. The pathogenesis of septic AKI is complex, but there is emerging evidence that, at least in the first 48 hours, the defects may be functional rather than structural in nature. For example, septic AKI is associated with an absence of histopathological changes, but with microvascular abnormalities and tubular stress...
June 16, 2018: Microcirculation: the Official Journal of the Microcirculatory Society, Inc
https://www.readbyqxmd.com/read/29907783/protective-effect-of-hydroxysafflor-yellow-a-against-acute-kidney-injury-via-the-tlr4-nf-%C3%AE%C2%BAb-signaling-pathway
#2
Juan Bai, Jinyi Zhao, Dongxiao Cui, Fan Wang, Ying Song, Lianghua Cheng, Kai Gao, Jin Wang, Long Li, Shujun Li, Yanyan Jia, Aidong Wen
This study aimed to evaluate the protective effect of hydroxysafflor yellow A (HSYA) on ischemia/reperfusion (I/R)-induced acute kidney injury via the TLR4/NF-κB pathway, both in vitro and in vivo. Rats were subjected to removal of the right kidney and I/R injury to the left kidney. Rats subjected to renal I/R injury were treated with HSYA at 0.5 h prior to I/R injury. Renal function, histopathological analysis, and cells apoptosis were measured in vivo. In vitro, proximal renal tubular cells (HK-2) were subjected to hypoxia/reoxygenation (H/R)...
June 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29904489/intracardiac-extension-of-intravenous-leiomyoma-a-rare-phenomenon-a-case-report
#3
Aileen Peña, Marvin Tamaña
Leiomyoma of uterine origin is a common histologically benign neoplasm in women; however, growth intravenously with intracardiac extension is a rare phenomenon. This is a diagnostic challenge that can present with varied clinical manifestations and multiple differential diagnosis. This is a case of a 45-year-old female patient with chest heaviness and an intracardiac mass on 2-dimensional (2D) echocardiogram. Previous history of hysterectomy was likewise noted. Imaging workup, including 2D echocardiogram and contrast-enhanced chest and abdomen computed tomography scans, was performed which demonstrated a large, heterogeneous, elongated filling defect in the right atrium and right ventricle extending to the inferior vena cava, left renal vein, and left gonadal vein...
April 2018: Radiology Case Reports
https://www.readbyqxmd.com/read/29901607/membranoproliferative-glomerulonephritis-like-findings-for-tafro-syndrome-associated-with-an-anterior-mediastinal-tumor-a-case-report
#4
Yoshitaka Furuto, Hirotsugu Hashimoto, Hajime Horiuti, Yuko Shibuya
RATIONALE: TAFRO syndrome is a systemic inflammatory disease proposed recently from Japan. The cause of TAFRO syndrome is unclear. Moreover, the disease characteristics and kidney pathology are yet unknown well and there are few cases. Herein, we report a patient with TAFRO syndrome and present the features of the renal histopathology. PATIENT CONCERNS: A 55-year-old woman presented to our hospital with the main complaint of subacute dyspnoea. DIAGNOSIS: Physical findings included a low-grade fever and generalised oedema...
June 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29901130/grape-seed-proanthocyanidins-protect-against-streptozotocin%C3%A2-induced-diabetic-nephropathy-by-attenuating-endoplasmic-reticulum-stress%C3%A2-induced-apoptosis
#5
Zhaoli Gao, Guangyi Liu, Zhao Hu, Weiwei Shi, Binbin Chen, Peimei Zou, Xianhua Li
Diabetic nephropathy (DN) is by far the most common cause of end‑stage renal disease (ESRD) in industrial countries, accounting for ~45% of all new ESRD cases in the United States. Grape seed proanthocyanidin extracts (GSPE) are powerful antioxidants, with an antioxidant ability 50‑fold greater than that of vitamin E and 20‑fold greater than that of vitamin C. The present study investigated whether GSPE can protect against streptozotocin (STZ)‑induced DN and aimed to elucidate a possible mechanism...
June 6, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29900781/causes-of-mortality-in-captive-panamanian-golden-frogs-atelopus-zeteki-at-the-maryland-zoo-in-baltimore-2001-2013
#6
Ronan Eustace, Allison Wack, Lisa Mangus, Ellen Bronson
  The Maryland Zoo in Baltimore is home to the largest captive assurance population of the critically endangered Panamanian golden frog ( Atelopus zeteki). With the ongoing extinction that is occurring worldwide in amphibians, the need for amphibian captive assurance populations is growing, and few mortality reviews on amphibian species exist. Necropsy and histopathologic examination of animals that die in captivity can help identify population-level disease problems, direct research needs in amphibian medicine and husbandry, and improve the success of captive breeding programs...
June 2018: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/29897076/honey-protects-against-cisplatin-induced-hepatic-and-renal-toxicity-through-inhibition-of-nf-%C3%AE%C2%BAb-mediated-cox-2-expression-and-the-oxidative-stress-dependent-bax-bcl-2-caspase-3-apoptotic-pathway
#7
Thikryat Neamatallah, Nagla A El-Shitany, Aymn T Abbas, Soad S Ali, Basma G Eid
The protective effects of both manuka and talh honeys were assessed using a rat model of cisplatin (CISP)-induced hepatotoxicity and nephrotoxicity. The results revealed that both honeys exerted a protective effect against CISP-induced hepatotoxicity and nephrotoxicity as demonstrated by decreasing liver and kidney function. Manuka honey also prevented CISP-induced histopathological changes observed in the liver and decreased the changes seen in the kidneys. Talh honey decreased CISP-induced liver histopathological changes but had no effect on CISP-induced kidney histopathological changes...
June 13, 2018: Food & Function
https://www.readbyqxmd.com/read/29896981/astragaloside-iv-ameliorates-early-diabetic-nephropathy-by-inhibition-of-mek1-2-erk1-2-rsk2-signaling-in-streptozotocin-induced-diabetic-mice
#8
Gaofeng Song, Pengxun Han, Huili Sun, Mumin Shao, Xuewen Yu, Wenjing Wang, Dongtao Wang, Wuyong Yi, Na Ge, Shunmin Li, Tiegang Yi
Objective The aim of this study was to investigate the renoprotective effects and molecular mechanisms of astragaloside IV (AS-IV) in streptozotocin (STZ)-induced diabetic mice. Methods Male C57BL/6 mice were injected intraperitoneally with STZ at 200 mg/kg body weight. AS-IV was administered for 8 consecutive weeks, beginning 1 week after STZ injection. Body weight, 24-hour urinary albumin excretion, and fasting blood glucose were measured. Kidney tissues were examined by histopathological analyses. Total levels and phosphorylation of mitogen-activated protein kinase 1/2 (MEK1/2), extracellular signal-regulated kinases 1 and 2 (ERK1/2), and ribosomal S6 kinase 2 (RSK2) were determined by Western blotting analysis...
January 1, 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29895474/microfilaria-in-kidney-biopsy-a-report-of-two-cases
#9
Swasti Shubham, Arvind Ahuja, Minakshi Bhardwaj
Filariasis is traditionally diagnosed on finding microfilaria in peripheral blood smear and in cases of occult filariasis by immunological tests. Clinically, it presents with a wide range of symptoms and signs. We present two cases of filariasis presenting with renal symptoms warranting kidney biopsy. Histopathology of both revealed microfilaria in the glomerular capillary loop. First case was a 23-year-old male who presented with complaints of passage of milky urine. Second case was a 36-year-old female patient who presented with complaints of gross hematuria...
June 9, 2018: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/29895293/robotic-treatment-of-oligometastatic-kidney-tumor-with-synchronous-pancreatic-metastasis-case-report-and-review-of-the-literature
#10
Andrea Boni, Giovanni Cochetti, Stefano Ascani, Michele Del Zingaro, Francesca Quadrini, Alessio Paladini, Diego Cocca, Ettore Mearini
BACKGROUND: The management of metastatic Renal Cell Carcinoma (RCC) has changed dramatically in the last 20 years, and the role of surgery in the immunotherapy's era is under debate. Metastatic lesions interesting pancreas are infrequent, but those harbouring from RCC have an high incidence. If metachronous resections are not rare, synchronous resection of primary RCC and its pancreatic metastasis is uncommonly reported, and accounts for a bad prognosis. CASE PRESENTATION: We report the case of a 68 years old woman, who presented hematuria at hospital incoming, with radiological appearance of a 13 cm left renal mass, with a 2...
June 13, 2018: BMC Surgery
https://www.readbyqxmd.com/read/29894528/pigmented-squamous-cell-carcinoma-presenting-as-longitudinal-melanonychia-in-a-transplant-recipient
#11
Christina A Serret, Stephanie Wang, Amanda Marsch, Claudia Hernandez
We report the case of a 62-year-old black man who was on a maintenance immunosuppressive regimen that included mycophenolate mofetil and cyclosporine following renal transplantation 9 years prior. He presented to the dermatology department for evaluation of a pigmented longitudinal streak on the left third finger adjacent to the lateral nail fold that had been present for several months. He noted that the streak was increasing in size, and his fingertip had recently become tender. The pigmented band was biopsied, and histopathology showed atypia of the epidermis consistent with pigmented squamous cell carcinoma (pSCC)...
May 2018: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/29891955/a-systematic-evaluation-of-the-biocompatibility-of-cucurbit-7-uril-in-mice
#12
Xiangjun Zhang, Xiaoqiu Xu, Shengke Li, Lian-Hui Wang, Jianxiang Zhang, Ruibing Wang
As one of the most water-soluble members in the macrocyclic cucurbit[n]uril (CB[n]) family, CB[7] has attracted increasing attention in pharmaceutical and biomedical fields. Despite extensive studies regarding the potential use of CB[7] for biomedical applications, its full safety and toxicity profile in a clinically relevant model is still lacking. Herein we report the full biocompatibility profile of CB[7], administered orally, peritoneally or intravenously in mice, respectively. Body-weight changes showed no significant differences among various groups of mice after they were administered with CB[7] at a single dose of 5 g/kg orally, 500 mg/kg peritoneally and 150 mg/kg intravenously, respectively...
June 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29890881/comparative-assessment-on-mechanism-underlying-renal-toxicity-of-commercial-formulation-of-roundup-herbicide-and-glyphosate-alone-in-male-albino-rat
#13
Gabriel A Dedeke, Folarin O Owagboriaye, Kehinde O Ademolu, Olanrewaju O Olujimi, Adeyinka A Aladesida
There have been major concerns that the nephrotoxicity of commercial formulations of Roundup herbicide is due to the active ingredient glyphosate. We therefore investigated and compared the mechanisms underlining the nephrotoxicity of Roundup herbicide and glyphosate alone in rat. Fifty-six adult male rats randomized into 7 groups of 8 rats per group were exposed to Roundup formulation and glyphosate alone daily by gavage at 3.6, 50.4, and 248.4 mg/kg body weight (bw) of glyphosate concentrations for 12 weeks with distilled water administered to the control group...
January 1, 2018: International Journal of Toxicology
https://www.readbyqxmd.com/read/29889909/rabbit-aortic-aneurysm-model-with-enlarging-diameter-capable-of-better-mimicking-human-aortic-aneurysm-disease
#14
Yonghua Bi, Hongmei Chen, Yahua Li, Zepeng Yu, Xinwei Han, Jianzhuang Ren
The self-healing phenomenon can be found in the elastase-induced abdominal aortic aneurysm (AAA) model, and an enlarging AAA model was successfully induced by coarctation. Unfortunately, aortic coarctation in these enlarging models is generally not found in human AAA disease. This study aimed to create an experiment model of enlarging AAA in rabbits to better mimic human aortic aneurysm disease. Eighty-four male New Zealand white rabbits were randomly divided into three equal groups: two aneurysm groups (A and B) and a SHAM group...
2018: PloS One
https://www.readbyqxmd.com/read/29887714/type-1-papillary-renal-cell-carcinoma-presenting-as-an-infected-benign-renal-cyst-an-uncommon-presentation
#15
Chanchal Rana, Manoj Kumar, Suresh Babu, Atin Singhai, H Agarwal
We describe an unusual presentation of papillary renal cell carcinoma in a 40-year old male where radiological evaluation revealed a Bosniak type 2 cyst (probably benign), and clinical signs as well as symptoms also suggested an infected cyst l. However, on histopathological examination, an intra cystic type 1 papillary renal cell carcinoma was diagnosed. This is an extremely rare presentation of papillary renal cell carcinoma because it usually present as a heterogenous mass. Hence, even the radiologically benign cyst should be evaluated and managed cautiously...
June 2018: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29885932/questionable-specificity-of-histologic-findings-in-calcific-uremic-arteriolopathy
#16
Carla L Ellis, W Charles O'Neill
A variety of criteria exist for histopathologic diagnosis of calciphylaxis, also known as calcific uremic arteriolopathy but data on their specificity are limited. To assess this, histologic findings of 38 skin biopsies performed for a suspicion of calcific uremic arteriolopathy were compared with histologic findings in skin obtained from healthy margins of 43 amputations in patients with end-stage renal disease (ESRD) without evidence of calcific uremic arteriolopathy. Abnormalities in small arteries or arterioles were present in 35% of amputation specimens and 55% of skin biopsies, and among these only thrombosis but not calcification was significantly more prevalent in skin biopsies...
June 6, 2018: Kidney International
https://www.readbyqxmd.com/read/29885161/basic-parameters-of-blood-count-serum-sodium-and-creatinine-as-prognostic-factors-for-renal-cell-carcinoma-at-five-year-follow-up
#17
Marcin Życzkowski, Grzegorz Prokopowicz, Piotr Taborowski, Krzysztof Nowakowski, Paweł Rajwa, Paweł Stelmach, Andrzej Paradysz
BACKGROUND Several nomograms were developed for predicting the potential recurrence and cancer death risk in renal cell carcinoma patients. The combination of TNM classification and appropriately selected clinical classifiers allows for the creation of simple and effective risk calculators. MATERIAL AND METHODS There were 230 patients with renal cell cancer enrolled in this study. Basic parameters of blood count, serum creatinine and sodium concentrations, and histopathological features of the tumors were analyzed...
June 9, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29884802/chloroquine-and-amodiaquine-enhance-ampk-phosphorylation-and-improve-mitochondrial-fragmentation-in-diabetic-tubulopathy
#18
Hye Yun Jeong, Jun Mo Kang, Hak Hoon Jun, Dong-Jin Kim, Seon Hwa Park, Min Ji Sung, Jin Hyung Heo, Dong Ho Yang, Sang Ho Lee, So-Young Lee
We investigated the effects of chloroquine (CQ) and amodiaquine (AQ) on AMPK phosphorylation in renal tubular cells in a diabetic environment in vivo and in vitro. We also examined whether CQ- or AQ-mediated AMPK activity restoration attenuated diabetic tubulopathy by normalizing mitochondrial fragmentation. Human renal proximal epithelial cells (HKC8) were incubated in high-glucose conditions. Diabetes was induced with streptozotocin in male C57/BL6J mice. Treatment with CQ or AQ abolished high-glucose-induced phospho-AMPK and phosph-PGC1α down-regulation in HKC8 cells...
June 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29884068/microwave-extraction-of-salvia-officinalis-essential-oil-and-assessment-of-its-gc-ms-identification-and-protective-effects-versus-vanadium-induced-nephrotoxicity-in-wistar-rats-models
#19
Fatma Ghorbel Koubaa, Raed Abdennabi, Ahlem Soussi Ben Salah, Abdelfattah El Feki
In this study, we assess the impact of Salvia officinalis essential oil on renal toxicity induced by vanadium in rats. The animals were exposed to either ammonium metavanadate (5 mg/kg body weight) or the combination of vanadium and S. officinalis essential oil (15 mg EO/kg body weight) for 10 days. Vanadium induced significant renal damage, demonstrated by increased plasma levels of urea and creatinine. A marked increase in lipid peroxidation markers and carbonyl protein levels with a significant decrease in enzymatic antioxidants (SOD), catalase (CAT), and glutathione peroxidase (GPx) was also observed in vanadium-treated rats...
June 8, 2018: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/29883558/bapta-am-nanoparticle-for-the-curing-of-acute-kidney-injury-induced-by-ischemia-reperfusion
#20
Zhiyu He, Haoyu Tang, Xinru You, Keqing Huang, Arvind Dhinakar, Yang Kang, Qiaoli Yu, Jun Wu
Ischemia-reperfusion (I/R) is a major cause of acute kidney injury (AKI), which is associated with unacceptably high mortality rates in ICU. This research was designed to explore the therapeutic effect of BAPTA-AM (1,2-Bis(2-aminophenoxy) ethane-N,N,N,N-tetraacetic acid tetrakis(acetoxymethyl ester)) nanoparticle (BA-N) on AKI. BA-N was developed by liposome strategy and characterized by standard methods. The rat model was selected and the rats were randomly allocated into four groups: (1) Normal group; (2) Sham-operated group; (3) Model group (I/R + NS); (4) BA-N treatment group (I/R + BA-N)...
May 1, 2018: Journal of Biomedical Nanotechnology
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