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https://www.readbyqxmd.com/read/28340221/nationwide-multicentre-kidney-biopsy-study-of-japanese-patients-with-type-2-diabetes
#1
Kengo Furuichi, Yukio Yuzawa, Miho Shimizu, Akinori Hara, Tadashi Toyama, Hiroshi Kitamura, Yoshiki Suzuki, Hiroshi Sato, Noriko Uesugi, Yoshifumi Ubara, Satoshi Hisano, Yoshihiko Ueda, Shinichi Nishi, Hitoshi Yokoyama, Tomoya Nishino, Kentaro Kohagura, Daisuke Ogawa, Koki Mise, Yugo Shibagaki, Kenjiro Kimura, Masakazu Haneda, Hirofumi Makino, Seiichi Matsuo, Takashi Wada
Background.: The clinical and pathologic manifestations of nephropathy due to type 2 diabetes are diverse, but large-scale pathologic studies with long-term observations are limited. Methods.: Kidney biopsies and clinical data of 600 patients with type 2 diabetes were collected retrospectively from 13 centres across Japan. Thirteen pathologic findings (nine glomerular lesions, two interstitial lesions and two vascular lesions) were clearly defined and scored. Results...
March 2, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28340010/non-proteinuric-rather-than-proteinuric-renal-diseases-are-the-leading-cause-of-end-stage-kidney-disease
#2
Davide Bolignano, Carmine Zoccali
Proteinuria is a distinguishing feature in primary and secondary forms of chronic glomerulonephritis, which contribute to no more than the 20% of the end-stage kidney disease (ESKD) population. The contribution of non-proteinuric nephropathies to the global ESKD burden is still poorly focused and scarce research efforts are dedicated to the elucidation of risk factors and mechanistic pathways triggering ESKD in these diseases. We abstracted information on proteinuria in the main renal diseases other than glomerulonephritides that may evolve into ESKD...
March 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28339994/a-longitudinal-cohort-study-of-the-anti-synthetase-syndrome-increased-severity-of-interstitial-lung-disease-in-black-patients-and-patients-with-anti-pl7-and-anti-pl12-autoantibodies
#3
Iago Pinal-Fernandez, Maria Casal-Dominguez, Julio A Huapaya, Jemima Albayda, Julie J Paik, Cheilonda Johnson, Leann Silhan, Lisa Christopher-Stine, Andrew L Mammen, Sonye K Danoff
Objective.: The aim was to study the prevalence, rate of appearance and severity of clinical features in patients with different anti-synthetase syndrome (ASyS) autoantibodies. Methods.: All Johns Hopkins Myositis Longitudinal Cohort subjects positive for any ASyS autoantibodies were included. Clinical information, including symptoms, signs, strength, creatine kinase concentrations and pulmonary function tests, were prospectively collected. The standardized mortality and cancer rates and the rate of appearance and intensity of the different organ manifestations were assessed using univariate and multivariate analysis and compared between ASyS autoantibodies...
March 4, 2017: Rheumatology
https://www.readbyqxmd.com/read/28339984/the-link-between-phenotype-and-fatty-acid-metabolism-in-advanced-chronic-kidney-disease
#4
Dan-Qian Chen, Hua Chen, Lin Chen, Nosratola D Vaziri, Ming Wang, Xiang-Ri Li, Ying-Yong Zhao
Background.: The kidney plays a central role in elimination of metabolic waste products and regulation of low-molecular weight metabolites via glomerular filtration, tubular secretion and reabsorption. Disruption of these processes results in profound changes in the biochemical milieu of the body fluids, which contribute to complications of chronic kidney disease (CKD) by inducing cytotoxicity and inflammation. Insight into the changes of the composition of metabolites and dysregulation of target genes and proteins enhances the understanding of the pathophysiology of CKD and its complications, and the development of novel therapeutic strategies...
March 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28339906/interstitial-fibrosis-scored-on-whole-slide-digital-imaging-of-kidney-biopsies-is-a-predictor-of-outcome-in-proteinuric-glomerulopathies
#5
Laura H Mariani, Sebastian Martini, Laura Barisoni, Pietro A Canetta, Jonathan P Troost, Jeffrey B Hodgin, Matthew Palmer, Avi Z Rosenberg, Kevin V Lemley, Hui-Ping Chien, Jarcy Zee, Abigail Smith, Gerald B Appel, Howard Trachtman, Stephen M Hewitt, Matthias Kretzler, Serena M Bagnasco
Background.: Interstitial fibrosis (IF), tubular atrophy (TA) and interstitial inflammation (II) are known determinants of progression of renal disease. Standardized quantification of these features could add value to current classification of glomerulopathies. Methods.: We studied 315 participants in the Nephrotic Syndrome Study Network (NEPTUNE) study, including biopsy-proven minimal change disease (MCD = 98), focal segmental glomerulosclerosis (FSGS = 121), membranous nephropathy (MN = 59) and IgA nephropathy (IgAN = 37)...
February 27, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28339835/the-association-between-proton-pump-inhibitor-use-and-the-risk-of-adverse-kidney-outcomes-a-systematic-review-and-meta-analysis
#6
Surapon Nochaiwong, Chidchanok Ruengorn, Ratanaporn Awiphan, Kiatkriangkrai Koyratkoson, Chayutthaphong Chaisai, Kajohnsak Noppakun, Wilaiwan Chongruksut, Kednapa Thavorn
Background: Existing epidemiological studies illustrate that proton pump inhibitors (PPIs) may be related to adverse kidney outcomes. To date, no comprehensive meta-analysis has been conducted to evaluate and quantify this association. Methods: We performed a systematic review and meta-analysis of studies to assess the association between PPI use and the risk of adverse kidney outcomes. We searched MEDLINE, Embase, SCOPUS, Web of Science, CINAHL, Cochrane Library and grey literature with no language restrictions (through 31 October 2016)...
February 23, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28339739/unabated-occupational-risk-in-a-patient-with-rheumatoid-pulmonary-fibrosis
#7
V K Holden, S J Kligerman, T G Hastings, S E Hines
Background: This case highlights the importance of considering hypersensitivity pneumonitis (HP) in the differential diagnosis of interstitial lung disease (ILD) and of obtaining an occupational history so that remediable risk factors may be identified and managed. Aims: To report a case of a chicken sexer with severe rheumatoid arthritis (RA) who developed progressively worsening dyspnoea and restrictive lung disease associated with pulmonary fibrosis. Methods: Clinical investigation included physical examination, occupational history, pulmonary function tests (PFTs), chest imaging and bronchoalveolar lavage (BAL), as well as serological tests including standard IgE bird feather mixture and local IgG precipitin preparation to chicken excrement...
February 23, 2017: Occupational Medicine
https://www.readbyqxmd.com/read/28339731/obesity-associated-cardiac-pathogenesis-in-broiler-breeder-hens-development-of-metabolic-cardiomyopathy2-3
#8
C Y Chen, Y F Huang, Y J Ko, Y J Liu, Y H Chen, R L Walzem, S E Chen
Feed intake is typically restricted (R) in broiler hens to avoid obesity and improve egg production and livability. To determine whether improved heart health contributes to improved livability, fully adult 45-week-old R hens were allowed to consume feed to appetite (ad libitum; AL) up to 10 wk (70 d). Mortality, contractile functions, and morphology at 70 d, and measurements of cardiac hypertrophic remodeling at 7 d and 21 d were made and compared between R and AL hens. Outcomes for cardiac electrophysiology and mortality, reported separately, found increased mortality in AL hens in association with cardiac pathological hypertrophy and contractile dysfunction...
February 22, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339646/tgf-%C3%AE-receptor-inhibition-prevents-ventricular-fibrosis-in-a-mouse-model-of-progressive-cardiac-conduction-disease
#9
Mickael Derangeon, Jérôme Montnach, Cynthia Ore Cerpa, Benoit Jagu, Justine Patin, Gilles Toumaniantz, Aurore Girardeau, Christopher Lh Huang, William H Colledge, Andrew A Grace, Isabelle Baró, Flavien Charpentier
Loss-of-function mutations in SCN5A, the gene encoding Nav1.5 channel, have been associated with inherited progressive cardiac conduction disease (PCCD). We have proposed that Scn5a heterozygous knock-out (Scn5a+/-) mice, which are characterized by ventricular fibrotic remodeling with ageing, represent a model for PCCD. Our objectives were to identify the molecular pathway involved in fibrosis development and prevent its activation. Methods and results: Our study shows that myocardial interstitial fibrosis occurred in Scn5a+/- mice only after 45 weeks of age...
February 17, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28339606/testicular-abnormalities-in-mice-with-y-chromosome-deficiencies%C3%A2
#10
Victor A Ruthig, Torbjoern Nielsen, Jonathan M Riel, Yasuhiro Yamauchi, Egle A Ortega, Quinci Salvador, Monika A Ward
We recently investigated mice with Y chromosome gene contribution limited to two, one, or no Y chromosome genes in respect to their ability to produce haploid round spermatids and live offspring following round spermatid injection. Here we explored the normalcy of germ cells and Sertoli cells within seminiferous tubules, and the interstitial tissue of the testis in these mice. We performed quantitative analysis of spermatogenesis and interstitial tissue on Periodic acid-Schiff and hematoxylin-stained mouse testis sections...
February 7, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28339533/pneumocystis-pneumonia-versus-rituximab-induced-interstitial-lung-disease-in-lymphoma-patients-receiving-rituximab-containing-chemotherapy
#11
Se Yoon Park, Mi Young Kim, Won Jin Choi, Dok Hyun Yoon, Sang-Oh Lee, Sang-Ho Choi, Yang Soo Kim, Cheolwon Suh, Jun Hee Woo, Sung-Han Kim
It is difficult to differentiate Pneumocystis pneumonia (PCP) from rituximab-induced interstitial lung disease (RILD) in lymphoma patients with diffuse pulmonary infiltrates who are receiving rituximab-containing chemotherapy. Using a clinical scoring system, we aim to differentiate PCP from RILD who are receiving rituximab-containing chemotherapy. We reviewed the medical records of lymphoma patients who had received rituximab-containing chemotherapy between 2012 and 2015 in a tertiary hospital. Among 613 lymphoma patients receiving rituximab-containing chemotherapy, 97 (16%) had diffuse pulmonary infiltrates...
October 7, 2016: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/28339528/the-utility-of-comprehensive-autoantibody-testing-to-differentiate-connective-tissue-disease-associated-and-idiopathic-interstitial-lung-disease-subgroup-cases
#12
Caroline V Cotton, Lisa G Spencer, Robert P New, Robert G Cooper
Interstitial lung disease (ILD) comprises many heterogeneous disease groups, the largest being CTD-associated and those labelled as idiopathic out of necessity. The mechanisms causing ILD are poorly understood, but most CTD- and idiopathic-ILD cases can respond to immunosuppression, clearly suggesting a pathological role for inflammation. By contrast, corticosteroid immunosuppression causes harm without benefit in the feared idiopathic pulmonary fibrosis, suggesting that inflammation plays little pathological role, and where ILD progresses rapidly to lethal outcome even with anti-fibrotic drug use...
October 20, 2016: Rheumatology
https://www.readbyqxmd.com/read/28339144/australian-and-new-zealand-pulmonary-rehabilitation-guidelines
#13
Jennifer A Alison, Zoe J McKeough, Kylie Johnston, Renae J McNamara, Lissa M Spencer, Sue C Jenkins, Catherine J Hill, Vanessa M McDonald, Peter Frith, Paul Cafarella, Michelle Brooke, Helen L Cameron-Tucker, Sarah Candy, Nola Cecins, Andrew S L Chan, Marita T Dale, Leona M Dowman, Catherine Granger, Simon Halloran, Peter Jung, Annemarie L Lee, Regina Leung, Tamara Matulick, Christian Osadnik, Mary Roberts, James Walsh, Sally Wootton, Anne E Holland
BACKGROUND AND OBJECTIVE: The aim of the Pulmonary Rehabilitation Guidelines (Guidelines) is to provide evidence-based recommendations for the practice of pulmonary rehabilitation (PR) specific to Australian and New Zealand healthcare contexts. METHODS: The Guideline methodology adhered to the Appraisal of Guidelines for Research and Evaluation (AGREE) II criteria. Nine key questions were constructed in accordance with the PICO (Population, Intervention, Comparator, Outcome) format and reviewed by a COPD consumer group for appropriateness...
March 24, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28339082/effects-of-autophagy-and-endocytosis-on-the-activity-of-matrix-metalloproteinase%C3%A2-2-in-human-renal-proximal-tubular-cells-under-hypoxia
#14
Wenmin Yu, Zhi Wang, Yiping Li, Lei Liu, Jing Liu, Fenggan Ding, Xiaoyi Zhang, Zhengyuan Cheng, Pingsheng Chen
Tubulointerstitial fibrosis is characterized by tubular atrophy with basement membrane thickening and accumulation of interstitial extracellular matrix (ECM). A decrease in the activity of matrix metalloproteinase‑2 (MMP‑2) may promote this process. Although proximal tubular cells are sensitive to oxygen deprivation, whether cellular autophagy or endocytosis induced by hypoxia can alter the activity of MMP‑2 remains to be elucidated. The aim of the present study was to investigate whether autophagy and endocytosis induced by hypoxia can have an effect on the activity of MMP‑2 in HK‑2 cells...
March 22, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28337956/acute-renal-graft-versus-host-disease-in-a-murine-model-of-allogeneic-bone-marrow-transplantation
#15
Peter M Schmid, Abdellatif Bouazzaoui, Karin Schmid, Christoph Birner, Christian Schach, Lars S Maier, Ernst Holler, Dierk H Endemann
Acute kidney injury (AKI) is a very common complication after allogeneic bone marrow transplantation (BMT) and associated with poor prognosis. Generally kidneys are assumed to be no direct target of Graft-versus-Host Disease (GvHD), and renal impairment is often attributed to several other factors occurring in the early phase after BMT. Our study aimed to prove the existence of renal GvHD in a fully MHC-mismatched model of BALB/c mice conditioned and transplanted according to two different intensity protocols...
March 23, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28337147/3d-proximal-tubule-tissues-recapitulate-key-aspects-of-renal-physiology-to-enable-nephrotoxicity-testing
#16
Shelby M King, J William Higgins, Celina R Nino, Timothy R Smith, Elizabeth H Paffenroth, Casey E Fairbairn, Abigail Docuyanan, Vishal D Shah, Alice E Chen, Sharon C Presnell, Deborah G Nguyen
Due to its exposure to high concentrations of xenobiotics, the kidney proximal tubule is a primary site of nephrotoxicity and resulting attrition in the drug development pipeline. Current pre-clinical methods using 2D cell cultures and animal models are unable to fully recapitulate clinical drug responses due to limited in vitro functional lifespan, or species-specific differences. Using Organovo's proprietary 3D bioprinting platform, we have developed a fully cellular human in vitro model of the proximal tubule interstitial interface comprising renal fibroblasts, endothelial cells, and primary human renal proximal tubule epithelial cells to enable more accurate prediction of tissue-level clinical outcomes...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28336721/tubule-derived-wnts-are-required-for-fibroblast-activation-and-kidney-fibrosis
#17
Dong Zhou, Haiyan Fu, Lu Zhang, Ke Zhang, Yali Min, Liangxiang Xiao, Lin Lin, Sheldon I Bastacky, Youhua Liu
Cell-cell communication via Wnt ligands is necessary in regulating embryonic development and has been implicated in CKD. Because Wnt ligands are ubiquitously expressed, the exact cellular source of the Wnts involved in CKD remains undefined. To address this issue, we generated two conditional knockout mouse lines in which Wntless (Wls), a dedicated cargo receptor that is obligatory for Wnt secretion, was selectively ablated in tubular epithelial cells or interstitial fibroblasts. Blockade of Wnt secretion by genetic deletion of Wls in renal tubules markedly inhibited myofibroblast activation and reduced renal fibrosis after unilateral ureteral obstruction...
March 23, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28336549/eavk-segment-c-sequence-confers-ca-2-dependent-changes-to-the-kinetics-of-full-length-human-ano1
#18
Peter R Strege, Simon J Gibbons, Amelia Mazzone, Cheryl E Bernard, Arthur Beyder, Gianrico Farrugia
Anoctamin1 (Ano1, TMEM16A) is a calcium-activated chloride channel specifically expressed in interstitial cells of Cajal (ICC) of the gastrointestinal (GI) tract muscularis propria. Ano1 is necessary for normal electrical slow waves and ICC proliferation. The full length human Ano1 sequence includes an additional exon, exon "0," at the N-terminus. Ano1 with exon "0" (Ano1(0)) had a lower EC50 for intracellular calcium ([Ca(2+)]i) and faster chloride current (ICl) kinetics. The Ano1 alternative splice variant with segment "c" encoding exon 13 expresses on the first intracellular loop four additional amino acid residues, EAVK, which alter ICl at low [Ca(2+)]i Exon 13 is expressed in 75-100% of Ano1 transcripts in most human tissues but only 25% in human stomach...
March 23, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28336072/microneedle-enzyme-sensor-arrays-for-continuous-in-vivo-monitoring
#19
Anthony E G Cass, Sanjiv Sharma
Microneedle enzyme sensors by virtue of their minimally invasive and hence pain-free penetration of skin allow for the measurement of metabolites, biomarkers, and drugs in the interstitial fluid that bathes the dermal tissue. Such devices if they are to be adopted widely into clinical practice need to be capable of delivering reliable measurements over extended periods of time (days) and to be fabricated by low-cost, scalable methods. Using injection molding of the base structures in polycarbonate, metal film deposition by sputtering and enzyme immobilization by electrodeposition can meet these requirements...
2017: Methods in Enzymology
https://www.readbyqxmd.com/read/28335353/the-chemical-deposition-method-for-the-decoration-of-palladium-particles-on-carbon-nanofibers-with-rapid-conductivity-changes
#20
Hoik Lee, Duy-Nam Phan, Myungwoong Kim, Daewon Sohn, Seong-Geun Oh, Seong Hun Kim, Ick Soo Kim
Palladium (Pd) metal is well-known for hydrogen sensing material due to its high sensitivity and selectivity toward hydrogen, and is able to detect hydrogen at near room temperature. In this work, palladium-doped carbon nanofibers (Pd/CNFs) were successfully produced in a facile manner via electrospinning. Well-organized and uniformly distributed Pd was observed in microscopic images of the resultant nanofibers. Hydrogen causes an increment in the volume of Pd due to the ability of hydrogen atoms to occupy the octahedral interstitial positions within its face centered cubic lattice structure, resulting in the resistance transition of Pd/CNFs...
November 29, 2016: Nanomaterials
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