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pathology of kidney

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https://www.readbyqxmd.com/read/28731375/no-incidence-of-nephrogenic-systemic-fibrosis-after-gadobenate-dimeglumine-administration-in-patients-undergoing-dialysis-or-those-with-severe-chronic-kidney-disease
#1
Diego R Martin, Bobby Kalb, Ankush Mittal, Khalil Salman, Srinivasan Vedantham, Pardeep K Mittal
Purpose To determine the incidence of nephrogenic systemic fibrosis (NSF) in patients with severe chronic kidney disease (CKD) who underwent a uniform protocol for contrast material-enhanced magnetic resonance (MR) imaging with a gadolinium-based contrast agent (GBCA). Materials and Methods This retrospective, single-center, institutional review board-approved, HIPAA-compliant study included 3819 patients with severe (stage 4 or 5) CKD who underwent gadobenate dimeglumine-enhanced MR imaging as part of a preoperative evaluation for potential renal transplantation from January 2008 to February 2014...
July 21, 2017: Radiology
https://www.readbyqxmd.com/read/28731045/renal-cell-tumors-with-clear-cell-histology-and-intact-vhl-and-chromosome-3p-a-histological-review-of-tumors-from-the-cancer-genome-atlas-database
#2
Laura Favazza, Dhananjay A Chitale, Ravi Barod, Craig G Rogers, Shanker Kalyana-Sundaram, Nallasivam Palanisamy, Nilesh S Gupta, Sean R Williamson
Clear cell renal cell carcinoma is by far the most common form of kidney cancer; however, a number of histologically similar tumors are now recognized and considered distinct entities. The Cancer Genome Atlas published data set was queried (http://cbioportal.org) for clear cell renal cell carcinoma tumors lacking VHL gene mutation and chromosome 3p loss, for which whole-slide images were reviewed. Of the 418 tumors in the published Cancer Genome Atlas clear cell renal cell carcinoma database, 387 had VHL mutation, copy number loss for chromosome 3p, or both (93%)...
July 21, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28729036/molecular-mechanisms-of-renal-aging
#3
REVIEW
Roland Schmitt, Anette Melk
Epidemiologic, clinical, and molecular evidence suggest that aging is a major contributor to the increasing incidence of acute kidney injury and chronic kidney disease. The aging kidney undergoes complex changes that predispose to renal pathology. The underlying molecular mechanisms could be the target of therapeutic strategies in the future. Here, we summarize recent insight into cellular and molecular processes that have been shown to contribute to the renal aging phenotype.The main clinical finding of renal aging is the decrease in glomerular filtration rate, and its structural correlate is the loss of functioning nephrons...
July 17, 2017: Kidney International
https://www.readbyqxmd.com/read/28728748/metastatic-renal-cell-carcinoma-patterns-and-predictors-of-metastases-a-contemporary-population-based-series
#4
Thenappan Chandrasekar, Zachary Klaassen, Hanan Goldberg, Girish S Kulkarni, Robert J Hamilton, Neil E Fleshner
OBJECTIVE: To assess the patterns and predictors of metastatic disease in renal cell carcinoma (RCC) at the time of diagnosis in a contemporary series. METHODS: The Surveillance, Epidemiology, and End Results database was queried for all patients with kidney RCC from 2010 to 2013 (N = 50,815). Distribution and predictors of distant metastases at diagnosis were assessed. Multivariate logistic regression hazard analyses were performed to determine covariates associated with the likelihood of having metastases at diagnosis, whereas competing risks regression analysis was used to assess predictors of cancer-specific mortality (CSM) in patients with metastatic disease...
July 17, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28727065/effects-of-feeding-camelina-cake-to-weaned-pigs-on-safety-growth-performance-and-fatty-acid-composition-of-pork
#5
M N Smit, E Beltranena
Feeding cake with remaining oil contributes dietary energy (fat) in addition to protein (AA) and may provide an opportunity to enrich the n-3 fatty acid content of pork. Information regarding safety, growth performance, and efficacy of feeding camelina cake to pigs is limited. We therefore evaluated the effects of camelina cake inclusion in pig nursery diets. In total, 192 pigs (9.4 kg BW) were randomly allocated by sex to 48 pens, 2 heavy and 2 light pigs per pen. Pigs were fed 1 of 4 wheat-based diets including camelina cake (0%, 6%, 12%, or 18%; variety Celine) replacing soybean meal for 4 wk...
June 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28723764/increased-nuchal-translucency-in-fetuses-with-a-normal-karyotype-diagnosis-and-management-an-observational-study
#6
Demetra Socolov, Razvan Socolov, Vlad Eusebiu Gorduza, Tudor Butureanu, Ruxandra Stanculescu, Alexandru Carauleanu, Ioana Pavaleanu
The use of nuchal translucency (NT) in 1992 by Nicolaides et al was a major breakthrough in screening for chromosomal aneuploidies at the end of the first trimester. However, pathological conditions other than chromosomal aneuploidies are also associated with increased NT, which can also be detected in normal fetuses. This study sought to evaluate the causes of this ultrasound sign in a group of patients from Iasi, Romania.During the decade-long study period, there were 71 certified cases involving increased NT; the patients in these cases underwent diagnostic amniocentesis and karyotyping...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28723681/inhibition-of-necroptosis-attenuates-kidney-inflammation-and-interstitial-fibrosis-induced-by-unilateral-ureteral-obstruction
#7
Xia Xiao, Chunyang Du, Zhe Yan, Yonghong Shi, Huijun Duan, Yunzhuo Ren
BACKGROUND: Inflammation plays a crucial role in renal interstitial fibrosis, the pathway of chronic kidney diseases. Necroptosis is a novel form of regulated cell death, which plays a potential role in inflammation and renal diseases. The small molecule necrostatin-1 (Nec-1) is a specific inhibitor of necroptosis. This study was aimed at determining the role of necroptosis, RIP1/RIP3/mixed lineage kinase domain-like (MLKL) signaling pathway, in renal inflammation and interstitial fibrosis related to primitive tubulointerstitial injury...
July 20, 2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28722531/patterns-of-renal-disease-in-south-korea-a-20-year-review-of-a-single-center-renal-biopsy-database
#8
Ho Sik Shin, Dae Hyeon Cho, Soo Kyoung Kang, Hyun Jeong Kim, Soo Young Kim, Joung Wook Yang, Gyong Hoon Kang, Ye Na Kim, Yeonsoon Jung, Bong-Kwon Cheon, Hark Rim
BACKGROUND: Several registries and centers have reported the results of renal biopsies from different parts of the world. As there are few data regarding the epidemiology of glomerulonephritis (GN) in South Korea, we conducted this study on renal biopsy findings during the last 20 years from a single center. METHODS: Data for 818 patients who underwent renal biopsy at our center between 1992 and 2011 were collected retrospectively. All kidney specimens were examined with light microscopy (LM) and immunofluorescent microscopy (IF)...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/28721497/normoalbuminuric-diabetic-kidney-disease
#9
REVIEW
Chao Chen, Chang Wang, Chun Hu, Yachun Han, Li Zhao, Xuejing Zhu, Li Xiao, Lin Sun
Diabetic kidney disease (DKD) is one of the primary causes of end-stage renal disease (ESRD). Early diagnosis is very important in preventing the development of DKD. Urinary albumin excretion rate (UAER) and glomerular filtration rate (GFR) are widely accepted as criteria for the diagnosis and clinical grading of DKD, and microalbuminuria has been recommended as the first clinical sign of DKD. The natural history of DKD has been divided into three stages: normoalbuminuria, microalbuminuria, and macroalbuminuria...
July 18, 2017: Frontiers of Medicine
https://www.readbyqxmd.com/read/28719975/toxicological-effects-of-aqueous-extract-from-african-walnut-tetracarpidium-conophorum-leaves-in-rats
#10
Seun F Akomolafe, Ganiyu Oboh, Sunday I Oyeleye, Tosin A Olasehinde
Tetracarpidium conophorum leaves are used in traditional medicine for the treatment of male infertility, without considering its toxicity and side effects. In this study, we investigated the effects of T conophorum leaves on some biochemical parameters such as alanine aminotransferase, aspartate aminotransferase, bilirubin, albumin, creatinine, and uric acid. Histology of the liver and kidney were also assessed. The result revealed that the alanine aminotransferase and aspartate aminotransferase levels of the control group were not significantly different from the experimental groups...
January 1, 2017: Journal of Evidence-based Complementary & Alternative Medicine
https://www.readbyqxmd.com/read/28718733/diagnostic-utility-of-renal-fine-needle-aspirate-cytology-and-ultrasound-in-the-cat
#11
Camille A McAloney, Leslie C Sharkey, Daniel A Feeney, Davis M Seelig
Objectives The primary objective of this study was to retrospectively assess the diagnostic utility of feline renal fine-needle aspiration cytology by assessing diagnostic yield, cytologic characteristics and diagnostic accuracy. The secondary objective was to characterize ultrasonographic features of sampled kidneys to determine if they influenced diagnostic yield. Methods Slides, images and patient data were collected from the University of Minnesota Veterinary Medical Center database. Slides were designated as diagnostic or non-diagnostic...
July 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28717279/cystitis-glandularis-management-and-challenges-in-a-renal-transplant-recipient
#12
Himanshu Agarwal, Mukund G Andankar, Viswanath Billa
Cystitis cystica or glandularis is a clinical and pathological entity of the bladder mucosa occurring secondary to inflammation or chronic obstruction. Its premalignant nature remains controversial, especially in an immunocompromised transplant recipient. We present a rare case where a chronic kidney disease patient was found to have cystitis glandularis while being worked up for living-related donor renal transplant and describe its subsequent management.
July 2017: Indian Journal of Urology: IJU: Journal of the Urological Society of India
https://www.readbyqxmd.com/read/28716570/protective-effects-of-pistacia-lentiscus-l-fruit-extract-against-calcium-oxalate-monohydrate-induced-proximal-tubular-injury
#13
Nassima Cheraft-Bahloul, Cécile Husson, Meriam Ourtioualous, Sébastien Sinaeve, Djebbar Atmani, Caroline Stévigny, Joëlle L Nortier, Marie-Hélène Antoine
ETHNOPHARMACOLOGICAL RELEVANCE: The world prevalence of kidney stones is increasing and plants are frequently used to treat urolithiasis. Pistacia lentiscus L, a plant which freely grows around the Mediterranean basin areas, is widely used for various pathologies. P. lentiscus has an important impact as it has economical value on top of its pharmacological interest. Decoctions of its aerial parts and/or resin are used to treat kidney stones. AIM OF THE STUDY: To in vitro assess the potential nephroprotective effect of Pistacia lentiscus ethanolic fruit extract (PLEF) on proximal tubular cells in response to the adhesion of calcium oxalate monohydrate (COM) crystals...
July 14, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28716561/influence-of-renal-biopsy-results-on-the-management-of-small-kidney-cancers-in-older-patients-results-from-a-population-based-cohort
#14
Marc A Bjurlin, Elena B Elkin, Coral L Atoria, Paul Russo, Samir S Taneja, William C Huang
BACKGROUND AND OBJECTIVE: Small kidney cancers are a heterogeneous group with varying malignant potential. Pathologic information obtained from a renal biopsy may guide decision-making for small kidney cancers. We sought to assess the effect of pathologic information from renal biopsy on the nonsurgical management of small kidney cancers in a population-based cohort of patients over 65 years of age. METHODS: In the Surveillance, Epidemiology and End Results-Medicare dataset, we identified patients ≥66 years diagnosed with a kidney cancer<4cm between 2002 and 2011...
July 14, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28715154/the-role-of-oxidative-stress-in-acute-renal-injury-of-newborn-rats-exposed-to-hypoxia-and-endotoxin
#15
Egor Y Plotnikov, Tatiana A Pavlenko, Irina B Pevzner, Ljubava D Zorova, Vasily N Manskikh, Denis N Silachev, Gennady T Sukhikh, Dmitry B Zorov
Neonatal kidney injury is a frequent pathology, especially among premature infants. The search for effective nephroprotection requires the creation of adequate experimental models of nephropathy in newborns. In this study, we explored the development of acute kidney injury (AKI) in neonatal rats during hypoxia or administration of endotoxin. We found that 2-h hypoxia (8% O2 ) and the intraperitoneal injection of 4 mg/kg lipopolysaccharide (LPS) causes the appearance of AKI markers, such as КIM-1 and NGAL in the rat urine after 24 and 72 h of exposure...
July 17, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28714966/nanoscale-imaging-of-clinical-specimens-using-pathology-optimized-expansion-microscopy
#16
Yongxin Zhao, Octavian Bucur, Humayun Irshad, Fei Chen, Astrid Weins, Andreea L Stancu, Eun-Young Oh, Marcello DiStasio, Vanda Torous, Benjamin Glass, Isaac E Stillman, Stuart J Schnitt, Andrew H Beck, Edward S Boyden
Expansion microscopy (ExM), a method for improving the resolution of light microscopy by physically expanding a specimen, has not been applied to clinical tissue samples. Here we report a clinically optimized form of ExM that supports nanoscale imaging of human tissue specimens that have been fixed with formalin, embedded in paraffin, stained with hematoxylin and eosin, and/or fresh frozen. The method, which we call expansion pathology (ExPath), converts clinical samples into an ExM-compatible state, then applies an ExM protocol with protein anchoring and mechanical homogenization steps optimized for clinical samples...
July 17, 2017: Nature Biotechnology
https://www.readbyqxmd.com/read/28714578/efficacy-and-initial-safety-profile-of-cxcl12-treatment-in-a-rodent-model-of-urinary-sphincter-deficiency
#17
J Koudy Williams, Ashley Dean, Shannon Lankford, Karl-Erik Andersson
Disappointing results of skeletal muscle precursor cell (skMPC) therapy for women with intrinsic urinary sphincter deficiency (ISD) associated urinary incontinence has increased interest in alternative sphincter regenerative approaches. This study was to measure the safety and efficacy of the cell homing chemokine CXCL12 versus skMPCs in a rat model of ISD. Thirty-six adult female Sprague Dawley rats were divided into 6 treatment (Tx) conditions: (a) no ISD/noTx [Control]; (b) ISD/noTx; (c) ISD + skMPCs; (d) ISD + 3...
July 17, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28714397/prognostic-value-of-copeptin-in-chronic-kidney-disease-from-general-population-to-end-stage-renal-disease
#18
Edyta Golembiewska, Anna Machowska, Peter Stenvinkel, Bengt Lindholm
Arginine vasopressin (AVP), also known as antidiuretic hormone (ADH), is released in response to osmotic and non-osmotic stimuli and plays a key role in many physiologic and pathologic processes. The main function of AVP is the control of fluid homeostasis by inducing water conservation by the kidney, but it also stimulates arteriolar vasoconstriction and the release of adrenocorticotropic hormone (ACTH). These actions are mediated by different AVP receptors located on various target cells. Produced in hypothalamus from a larger precursor, pre-proAVP, AVP is produced in equimolar amounts to copeptin, a glycopeptide with yet unknown biologic function...
July 14, 2017: Current Protein & Peptide Science
https://www.readbyqxmd.com/read/28710580/assessment-of-acute-kidney-injury-with-t1-mapping-mri-following-solid-organ-transplantation
#19
Matti Peperhove, Van Dai Vo Chieu, Mi-Sun Jang, Marcel Gutberlet, Dagmar Hartung, Susanne Tewes, Gregor Warnecke, Christiane Fegbeutel, Axel Haverich, Wilfried Gwinner, Frank Lehner, Jan Hinrich Bräsen, Hermann Haller, Frank Wacker, Faikah Gueler, Katja Hueper
OBJECTIVES: To evaluate T1 mapping as a non-invasive, functional MRI biomarker in patients shortly after solid organ transplantation to detect acute postsurgical kidney damage and to correlate T1 times with renal function. METHODS: 101 patients within 2 weeks after solid organ transplantation (49 kidney transplantation, 52 lung transplantation) and 14 healthy volunteers were examined by MRI between July 2012 and April 2015 using the modified Look-Locker inversion recovery (MOLLI) sequence...
July 14, 2017: European Radiology
https://www.readbyqxmd.com/read/28709692/ampk-orchestrates-an-elaborate-cascade-protecting-tissue-from-fibrosis-and-aging
#20
REVIEW
Shuai Jiang, Tian Li, Zhi Yang, Wei Yi, Shouyin Di, Yang Sun, Dongjin Wang, Yang Yang
Fibrosis is a common process characterized by excessive extracellular matrix (ECM) accumulation after inflammatory injury, which is also a crucial cause of aging. The process of fibrosis is involved in the pathogenesis of most diseases of the heart, liver, kidney, lung, and other organs/tissues. However, there are no effective therapies for this pathological alteration. Annually, fibrosis represents a huge financial burden for the USA and the world. 5'-AMP-activated protein kinase (AMPK) is a pivotal energy sensor that alleviates or delays the process of fibrogenesis...
July 12, 2017: Ageing Research Reviews
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