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renal histology

Iván Tavera Busso, Ana Carolina Mateos, Luis Isaías Juncos, Norma Canals, Hebe Alejandra Carreras
According to the WHO, about 3 million people die each year due to ambient air pollution. Most of the in vivo studies on the PM2.5 effects have been done on respiratory and cardiovascular tissues. However, little is known about the effects on the tissues involved on xenobiotic removal, such as kidneys. In the present study we assess the harmful effects of sub-chronic exposure to PM2.5 on the kidney, by investigating histologic and serum alterations in healthy and hypertensive rat models. Mean PM2.5 concentrations during exposures were slightly above the daily WHO standard...
October 10, 2018: Environment International
Yosra M Magdy, Omnyah A El-Kharashi, Dalia A A El-Waseef, Enas S Nabih, Abeer A Abd El Samad
OBJECTIVES: The repression of renal Farnesoid X Receptor (FXR) had been shown to result from lack of bile acid production from cirrhotic liver. We hypothesized that silymarin and rosuvastatin (Rvs) could have a hepatorenal therapeutic effects in hepatic nephropathy through induction of FXR. METHODS: Forty two male Wistar rats were used; naïve (n = 12); six of them were sacrificed after 4 weeks and six continued till the end of the experiment. Thirty rats were treated as follows: Rvs, silymarin, thioacetamide (TAA), TAA + Rvs and TAA + silymarin...
October 8, 2018: Experimental and Molecular Pathology
Shanat Baig, Richard Paisey, Charlotte Dawson, Timothy Barrett, Pietro Maffei, James Hodson, Srinivasa Bhargav Rambhatla, Priyesh Chauhan, Shaun Bolton, Francesca Dassie, Clair Francomano, Robert P Marshall, Mohammed Belal, Kassiani Skordilis, Manvir Hayer, Anna M Price, Robert Cramb, Nicola Edwards, Richard P Steeds, Tarekegn Geberhiwot
Background: Alström syndrome (AS) is a rare autosomal recessive ciliopathy with a wide spectrum of clinical features, including cone-rod retinal dystrophy, neuronal deafness, severe insulin resistance and major organ failure. The characteristics of renal disease in the syndrome have not been systematically described. The aim of this study is to define the onset and progression of renal disease in AS. Method: Prospective observational cohort study. Setting and Participants: Thirty-two adult subjects from a national specialist clinic in UK and 86 subjects from an international AS registry were studied...
October 10, 2018: Nephrology, Dialysis, Transplantation
Qian Kang, Jia Liu, Ying Zhao, Xin Liu, Xin-Yan Liu, Yong-Jie Wang, Nuo-Lan Mo, Qing Wu
Co-encapsulation of drugs provides a convenient means for treating different symptoms of a disease. Celastrol (Cel) shows potent anti-arthritic activity and Indomethacin (Indo) is effective in relieving inflammatory pain. Nanostructured lipid carriers loaded with Celastrol and Indomethacin (Cel-Indo-NLCs) were prepared by emulsification evaporation-solidification method, optimized by the Box-Behnken design and characterized by transmission electron microscopy (TEM), Fourier transform infrared (FTIR) and powder X-ray diffraction analysis (PXRD)...
October 11, 2018: Artificial Cells, Nanomedicine, and Biotechnology
Kunihiro Yamagata, Joichi Usui, Michio Nagata, Hitoshi Sugiyama, Ken-Ei Sada, Eri Muso, Masayoshi Harigai, Koichi Amano, Tatsuya Atsumi, Shouichi Fujimoto, Yukio Yuzawa, Masaki Kobayashi, Takao Saito, Takafumi Ito, Nobuhito Hirawa, Sakae Homma, Hiroaki Dobashi, Naotaka Tsuboi, Akihiro Ishizu, Yoshihiro Arimura, Hirofumi Makino, Seiichi Matsuo
BACKGROUND: The prognostic value of the EUVAS-proposed histopathological classification of anti-neutrophil cytoplasmic antibody (ANCA)-associated glomerulonephritis has been evaluated throughout the world. Here, we performed a Japanese nationwide biopsy survey to assess the association between this histopathological classification and renal prognosis after 2-year follow-up in ANCA-associated glomerulonephritis. METHODS: We collected 67 renal biopsy materials of the 321 entries in the RemIT-JAV-RPGN cohort study, and assessed their histologies...
October 10, 2018: Clinical and Experimental Nephrology
Rosario Martinez, Garifallia Kapravelou, Carlos López-Chaves, Elena Cáceres, Irene Coll-Risco, Cristina Sánchez-González, Juan Llopis, Francisco Arrebola, Milagros Galisteo, Pilar Aranda, Maria Lopez-Jurado, Jesus M Porres
Obesity, metabolic syndrome and renal injury are considered risk factors for type 2 diabetes, as well as kidney disease. Functional and structural changes in the kidney as consequence of obesity and metabolic syndrome may lead to impaired mineral metabolism in what is known as chronic kidney disease-mineral and bone disorder. Lifestyle interventions such as physical activity are good strategies to manage these pathologies and, therefore, prevent the loss of kidney functionality and related complications in mineral metabolism...
October 10, 2018: American Journal of Physiology. Renal Physiology
Gábor Bari, Szilárd Szűcs, Dániel Érces, Mihály Boros, Gabriella Varga
Objectives: Pericardial tamponade is a life-threatening medical emergency, when the hemodynamic consequences of low cardiac output severely disturb the perfusion of the peripheral tissues. Our aim was to design a reliable large animal model to reproduce the clinical scenario with the relevant pathophysiological consequences of pericardial tamponade -induced cardiogenic shock. Material and Methods: Anesthetized Vietnamese mini pigs were used (n=12). Following laparotomy, a cannula was fixed into the pericardium through the diaphragm without thoracotomy...
2018: Turkish Journal of Surgery
In Hee Lee, Byung Woog Kang, Jong Gwang Kim, Woo Kyun Bae, Myung Seo Ki, Inkeun Park, Jae-Cheol Jo, Jin Young Kim, Sung Ae Koh, Kyung Hee Lee, Yoon Young Cho, Hun Mo Ryoo, Sang Gyu Kwak, Jung Lim Lee, Sun Ah Lee
Background/Aims: For metastatic renal cell carcinoma (RCC), various prognostic scoring systems have been developed. However, owing to the low prevalence of nonclear cell RCC, the three most commonly used tools were mainly developed based on patients with clear cell histology. Accordingly, this study applied three prognostic models to Korean non-clear cell RCC patients treated with first-line temsirolimus. Methods: This study analyzed data for 74 patients with non-clear cell RCC who were treated with temsirolimus as the first-line therapy at eight medical centers between 2011 and 2016...
October 12, 2018: Korean Journal of Internal Medicine
Jonathan R Young, Heidi Coy, Hyun J Kim, Michael Douek, Anthony Sisk, Allan J Pantuck, Steven S Raman
OBJECTIVE: The purpose of this study was to determine whether qualitative MDCT features are associated with the carbonic anhydrase IX (CAIX) score of clear cell renal cell carcinoma (RCC). The CAIX score has been previously found to have prognostic significance for disease-free survival, overall survival, and lymph node involvement. MATERIALS AND METHODS: A cohort of 105 histologically proven clear cell RCCs in patients who underwent preoperative four-phase renal mass MDCT was derived from 2001 to 2013...
October 9, 2018: AJR. American Journal of Roentgenology
Romana Ryšavá
AL amyloidosis (light chain; previously also called primary amyloidosis) is a systemic disease characterized by an amyloid deposition process affecting many organs, and which still has unsatisfactory survival of patients. The monoclonal light chains kappa (κ) or lambda (λ) or their fragments form the fibrils that deposit and accumulate in different tissues. Renal involvement is very frequent in AL amyloidosis and can lead to the development of nephrotic syndrome followed by renal failure in some cases. AL amyloidosis ultimately leads to destruction of tissues and progressive disease...
October 8, 2018: Nephrology, Dialysis, Transplantation
Amir Sedigh, Sofia Nordling, Fredrik Carlsson, Erik Larsson, Bo Norlin, Norbert Lübenow, Fredrik Lennmyr, Gunnar Tufveson, Peetra U Magnusson, Tomas Lorant
BACKGROUND: Previously we have been able to demonstrate the possibility of coating the inner surface of the renal arteries in porcine kidneys with a heparin conjugate during hypothermic machine perfusion (HMP). The purpose of this study was to assess the efficacy of this treatment in reducing early ischemia-reperfusion injury. METHOD: Brain death was induced in male landrace pigs by stepwise volume expansion of an epidural balloon catheter until negative cerebral perfusion pressure was obtained...
October 6, 2018: Transplantation
David H Chafey, Valerae O Lewis, Robert L Satcher, Bryan S Moon, Patrick P Lin
BACKGROUND: Although cephalomedullary nail fixation is often used for metastatic peritrochanteric lesions of the femur, there is concern regarding the durability of the implant in comparison to endoprosthetic reconstruction. Previous studies have reported the proportion of patients who undergo reoperation for loss of stability, but the adequacy of the construct has not been critically evaluated in a competing risk analysis that incorporates death of the patient in the calculation. QUESTIONS/PURPOSES: (1) What is the cumulative incidence of reoperation of cephalomedullary nails with death as a competing risk for metastatic lesions of the proximal femur? (2) What is the survival of patients with metastases to the proximal femur after cephalomedullary nailing? (3) What clinical factors are associated with implant stability in these patients? METHODS: Between 1990 and 2009, 11 surgeons at one center treated 217 patients with cephalomedullary nails for metastatic proximal femoral lesions...
October 2, 2018: Clinical Orthopaedics and related Research
Desmond Yh Yap, Susan Yung, Tak Mao Chan
Immunosuppressive therapies for lupus nephritis (LN) have improved significantly over the past few decades, resulting in growing number of choices for treatment individualization and improved renal and patient outcomes. Corticosteroids combined with mycophenolate or cyclophosphamide induces a satisfactory response in a high proportion of Asian and Caucasian patients, but the rate of improvement varies considerably between patients. Relatively low disease flare rate was observed in Chinese patients receiving low-dose prednisolone and mycophenolate maintenance...
October 2018: Nephrology
Kranti A Mapuskar, Hsiang Wen, Danniele G Holanda, Prerna Rastogi, Emily Steinbach, Rachel Han, Mitchell C Coleman, Massimo Attanasio, Dennis P Riley, Douglas R Spitz, Bryan G Allen, Diana Zepeda-Orozco
Severe and recurrent cisplatin-induced acute kidney injury (AKI) as part of standard cancer therapy is a known risk factor for development of chronic kidney disease (CKD). The specific role of superoxide (O2 •- )-mediated disruption of mitochondrial oxidative metabolism in CKD after cisplatin treatment is unexplored. Cisplatin is typically administered in weekly or tri-weekly cycles as part of standard cancer therapy. To investigate the role of O2 •- in predisposing patients to future renal injury and in CKD, mice were treated with cisplatin and a mitochondrial-specific, superoxide dismutase (SOD) mimetic, GC4419...
September 27, 2018: Redox Biology
Chan-Min Liu, Hui-Xin Yang, Jie-Qiong Ma, Wei Yang, Zhao-Jun Feng, Jian-Mei Sun, Chao Cheng, Jun Li, Hong Jiang
Paeonol is a natural flavonoid isolated from Moutan Cortex, which has been found to exhibit antioxidant, anti-apoptotic, anti-aging and anti-inflammatory bioactivities. Herein, we investigated the nephroprotective efficacy of paeonol against Pb-induced toxicity and elucidated the potential mechanisms. The results revealed that paeonol significantly ameliorated renal dysfunction and histology changes of Pb-treated mice. Paeonol inhibited oxidative stress and increased activities of antioxidant enzyme in the kidneys of Pb-treated mice...
October 6, 2018: Food and Chemical Toxicology
Soumya Sundar Kumar, Krishnendu Manna, Asima Das
Tender coconut water (TCW), a well-known plant beverage, has been used as a stress-relieving traditional medicine since ancient times. It is also used to treat various ailments of disease, including hepatic disorders, renal disorders, gastric disorders and reproductive disorders. However, the reasons for its effectiveness as a natural antioxidant as well as its testicular protective effects against whole body heat stress (HS)-induced oxidative imbalance remain to be revealed. The present study aimed to elucidate the protective efficacy of TCW on HS-induced testicular damage in a murine system and to explore the possible mechanism of action...
October 8, 2018: Food & Function
Rafael Inácio Brandão, Ricardo Zanetti Gomes, Luana Lopes, Filipe Silva Linhares, José Carlos Rebuglio Vellosa, Katia Sabrina Paludo
BACKGROUND: The aim of this study was to evaluate the effects of the antioxidant allopurinol and ischemic post-conditioning on the deleterious effects of ischemia followed by reperfusion (I/R) in a standardized model of ischemia involving infra-renal aortic occlusion in rats. METHODS: The animals were randomly divided into five groups: (A) animals not subjected to ischemia; (B) animals subjected to 2 h of ischemia and reperfusion only once; (C) animals given an allopurinol dose by gavage, then subjected to 2 h of ischemia and reperfusion only once; (D) animals subjected to 2 h of ischemia and post-conditioning and (E) animals that received allopurinol, then subjected to 2 h of ischemia and post-conditioning...
October 8, 2018: Therapeutic Advances in Cardiovascular Disease
Lester D R Thompson, Kelly R Magliocca, Simon Andreasen, Katlin Kiss, Lisa Rooper, Edward Stelow, Bruce M Wenig, Justin A Bishop
Endolymphatic sac tumors (ELSTs) are rare, slowly growing temporal bone neoplasms which show a high association with von Hippel-Lindau (VHL) syndrome. The immunohistochemistry evaluation of these papillary-cystic neoplasms frequently raises the differential diagnosis with renal cell carcinoma, among other metastatic neoplasms, whether in VHL patients or not. A cohort of 26 patients with ELSTs were evaluated for histologic features, immunohistochemistry findings, and association with VHL. Standard immunohistochemistry evaluation was performed...
October 5, 2018: Head and Neck Pathology
He Huang, Wenwu Ling, Tingting Qiu, Yan Luo
RATIONALE: Testicular metastases from renal cell carcinoma (RCC) are extremely rare. To the best of our knowledge, only 35 cases have been described in the literatures. PATIENT CONCERNS: A 64-year-old male presented to our urology clinic for a palpable painless mass on his right side of the scrotum by self-examination 1 week ago, with a general abdominal ultrasonographic report showing a mass in his right kidney. DIAGNOSES AND INTERVENTIONS: Scrotal B-mode ultrasound revealed a 15 × 13 × 15 mm well-defined round homogenously hypoechoic nodule with a halo at the upper pole of the right testis...
October 2018: Medicine (Baltimore)
Hamed Haghi-Aminjan, Maryam Baeeri, Mahban Rahimifard, Ahad Alizadeh, Mahshid Hodjat, Shokoufeh Hassani, Mohammad Hossein Asghari, Alireza Abdollahi, Tina Didari, Rohollah Hosseini, Mohammad Sharifzadeh, Mohammad Abdollahi
Poisoning with aluminum phosphide (AlP) has been attributed to the high rate of mortality among many Asian countries. It affects several organs, mainly heart and kidney. Numerous literature demonstrated the valuable effect of minocycline in mitigating pathological symptoms of heart and kidney disease. The aim of the present study was to evaluate the probable protective effect of minocycline on cardiac hemodynamic parameters abnormalities and renal toxicity induced by AlP-poisoning in the rat model. AlP was administered by gavage at 12 mg/kg body weight followed by injection of minocycline for two interval times of 12 and 24 h, at 40, 80, 120 mg/kg body weight...
October 2, 2018: Environmental Toxicology and Pharmacology
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