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glomerular proteinuria

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https://www.readbyqxmd.com/read/28229825/anca-associated-pauci-immune-glomerulonephritis-always-pauci-immune
#1
Valeria Scaglioni, Marina Scolnik, Luis J Catoggio, Silvia B Christiansen, Carlos F Varela, Gustavo Greloni, Guillermo J Rosa-Diez, Enrique R Soriano
OBJECTIVES: Anti-neutrophil cytoplasmic antibody (ANCA)-associated glomerulonephritis (GN) is considered "pauci-immune" with absent or mild glomerular tuft staining for immunoglobulin (Ig) and/or complement. However, it is not unusual to see some immune deposits (ID) within glomeruli on immunofluorescence (IF). We determined to evaluate the prevalence and clinical significance of immune deposits in ANCA-associated GN. METHODS: We included all patients with ANCA associated vasculitis with renal biopsies between January 2002 and May 2014: granulomatosis with polyangiitis, eosinophilic granulomatosis with polyangiitis, microscopic polyangiitis and renal limited vasculitis...
January 31, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28228401/wolf-hirschhorn-syndrome-candidate-1-like-1-epigenetically-regulates-nephrin-gene-expression
#2
Yugo Ito, Kan Katayama, Yukino Nishibori, Yoshihiro Akimoto, Akihiko Kudo, Ryota Kurayama, Ichiro Hada, Shohei Takahashi, Toru Kimura, Toshiyuki Fukutomi, Tomohisa Katada, Junichi Suehiro, Olga Beltcheva, Karl Tryggvason, Kunimasa Yan
Altered expression of nephrin underlies the pathophysiology of proteinuria in both congenital and acquired nephrotic syndrome. However, the epigenetic mechanisms of nephrin gene regulation remain elusive. Here, we show that Wolf-Hirschhorn syndrome candidate 1-like 1 long form (WHSC1L1-L) is a novel epigenetic modifier of nephrin gene regulation. WHSC1L1-L was associated with histone H3K4 and H3K36 in human embryonic kidney cells. WHSC1L1-L gene was expressed in the podocytes and functional protein product was detected in these cells...
February 22, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28226034/omega-3-fatty-acid-supplementation-as-an-adjunctive-therapy-in-the-treatment-of-chronic-kidney-disease-a-meta-analysis
#3
Jing Hu, Zuoliang Liu, Hao Zhang
The aim of this study was to evaluate the benefits and risks of omega-3 fatty acid supplementation in patients with chronic kidney disease. A systematic search of articles in PubMed, Embase, the Cochrane Library, and reference lists was performed to find relevant literature. All eligible studies assessed proteinuria, the serum creatinine clearance rate, the estimated glomerular filtration rate, or the occurrence of end-stage renal disease. Standard mean differences with 95% confidence intervals for continuous data were used to estimate the effects of omega-3 fatty acid supplementation on renal function, as reflected by the serum creatinine clearance rate, proteinuria, the estimated glomerular filtration rate, and relative risk...
January 1, 2017: Clinics
https://www.readbyqxmd.com/read/28224182/parp-inhibition-ameliorates-nephropathy-in-an-animal-model-of-type-2-diabetes-focus-on-oxidative-stress-inflammation-and-fibrosis
#4
Esraa M Zakaria, Nabila N El-Maraghy, Ahmed F Ahmed, Abdelmonim A Ali, Hany M El-Bassossy
Poly(ADP-ribose) polymerase (PARP) enzyme contributes to nephropathy, a serious diabetic complication which may lead to end-stage renal disease. The study aims to investigate the effect of PARP over-activation on kidney functions in a type 2 diabetic rat model. The study also tests the therapeutic use of PARP inhibitors in diabetic nephropathy. Type 2 diabetes was induced in adult male rats by high-fructose/high-fat diet and low streptozotocin dose. Then, the PARP inhibitor 4-aminobenzamide (4-AB) was administered daily for 10 weeks...
February 21, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28223138/foxc1-and-foxc2-are-necessary-to-maintain-glomerular-podocytes
#5
Masaru Motojima, Tsutomu Kume, Taiji Matsusaka
Foxc1 and Foxc2 (Foxc1/2) are transcription factors involved in many biological processes. In adult kidneys, expression of Foxc1/2 is confined to the glomerular epithelial cells, i.e., podocytes. To bypass embryonic lethality of Foxc1/2 null mice, mice ubiquitously expressing inducible-Cre (ROSA26-CreER(T2)) or mice expressing Cre in podocytes (Nephrin-Cre) were mated with floxed-Foxc1 and floxed-Foxc2 mice. The CreER(T2) was activated in adult mice by administrations of tamoxifen. Eight weeks after tamoxifen treatment, ROSA26-CreER(T2); Foxc1(+/flox); Foxc2(flox/flox) mice developed microalbuminuria, while ROSA26-Cre ER(T2); Foxc1(flox/flox); Foxc2(+/flox) mice had no microalbuminuria...
February 18, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28219886/dependence-of-glomerulonephritis-induction-on-novel-intraglomerular-alternatively-activated-bone-marrow-derived-macrophages-and-mac-1-and-pd-l1-in-lupus-prone-nzm2328-mice
#6
Sun-Sang J Sung, Yan Ge, Chao Dai, Hongyang Wang, Shu Man Fu, Rahul Sharma, Young S Hahn, Jing Yu, Thu H Le, Mark D Okusa, Warren K Bolton, Jessica R Lawler
Glomerular damage mediated by glomerulus-infiltrating myeloid-derived cells is a key pathogenic event in lupus nephritis (LN), but the process is poorly understood. Confocal microscopy of kidney sections and flow cytometry analysis of glomerular cells from magnetic bead-purified glomeruli have identified glomerulus-infiltrating leukocyte populations in NZM2328 (NZM) lupus-prone mice with spontaneous chronic glomerulonephritis (GN) and anti-glomerular basement membrane-induced nephritis. The occurrence of a major glomerulus-infiltrating CD11b(+)F4/80(-)I-A(-) macrophage population exhibiting the markers programmed death ligand-1 (PD-L1), Mac-2, and macrophage mannose receptor (CD206) and producing Klf4, Il10, Retnla, Tnf, and Il6 mRNA, which are known to be expressed by alternatively activated (M2b) macrophages, correlated with proteinuria status...
February 20, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28219585/urinary-type-iii-procollagen-is-associated-with-chronic-allograft-dysfunction-and-predicts-graft-survival
#7
R Yılmaz, T Yıldırım, D E Baydar, B Altun, Y Erdem
BACKGROUND: Chronic allograft dysfunction (CAD) is the most important clinical problem in solid organ transplantation. Interstitial fibrosis and tubular atrophy contribute to long-term renal allograft failure. Urinary type III procollagen N-terminal propeptide (PIIINP), has been shown to associate fibrotic processes. METHODS: One hundred sixty patients with CAD who underwent allograft biopsies were evaluated, and 52 patients with chronic or sclerosing allograft nephropathy were enrolled in the study...
March 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28215945/mycophenolate-mofetil-combined-with-prednisone-versus-full-dose-prednisone-in-iga-nephropathy-with-active-proliferative-lesions-a-randomized-controlled-trial
#8
Jin-Hua Hou, Wei-Bo Le, Nan Chen, Wei-Ming Wang, Zhang-Suo Liu, Dong Liu, Jiang-Hua Chen, Jiong Tian, Ping Fu, Zhang-Xue Hu, Cai-Hong Zeng, Shao-Shan Liang, Min-Lin Zhou, Hai-Tao Zhang, Zhi-Hong Liu
BACKGROUND: Observational studies suggest that patients with immunoglobulin A nephropathy (IgAN) with active proliferative lesions show a good response to immunosuppressive treatment. STUDY DESIGN: Multicenter, prospective, randomized, controlled trial. SETTING & PARTICIPANTS: 176 patients with IgAN with active proliferative lesions (cellular and fibrocellular crescents, endocapillary hypercellularity, or necrosis), proteinuria with protein excretion ≥ 1...
February 15, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28209267/assessment-of-volume-status-and-appropriate-fluid-replenishment-in-the-setting-of-nephrotic-syndrome
#9
Pierluigi Marzuillo, Stefano Guarino, Andrea Apicella, Rosaria Marotta, Vincenzo Tipo, Laura Perrone, Angela La Manna, Giovanni Montini
BACKGROUND: When the permeability of the glomerular filtration barrier increases, leading to proteinuria, nephrotic syndrome (NS) occurs. First episodes or relapses of NS can be concurrent with acute gastroenteritis (AGE) infections. This condition can cause further deterioration of the hypovolemic state, as intravascular water is lost through both AGE-related vomiting/diarrhea and NS-related fluid shifting into the interstitium. In this case report, we wish to raise the issues about the difficult management of children presenting with both NS and AGE...
February 10, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28203565/tubular-dysfunction-mimicking-dent-s-disease-in-2-infants-born-with-extremely-low-birth-weight
#10
Midori Awazu, Mie Arai, Shoko Ohashi, Hirotaka Takahashi, Takashi Sekine, Kazushige Ikeda
Two preterm infants, with extremely low birth weight born at gestational weeks 24 and 25, showed generalized proximal tubular dysfunction during their stay in the neonatal intensive care unit, including glucosuria, low molecular weight proteinuria, phosphaturia, uricosuria, enzymuria (elevated urine N-acetyl-β-D-glucosaminidase), panaminoaciduria, and hypercalciuria, associated with renal calcification. Renal tubular acidosis was not present in either patient. DNA mutation analysis for Dent's disease, performed in patient 1, was negative...
January 2017: Case Reports in Nephrology and Dialysis
https://www.readbyqxmd.com/read/28196580/anti-neutrophil-cytoplasmic-antibody-associated-vasculitis-with-renal-involvement-analysis-of-89-cases
#11
Fernando Caravaca-Fontán, Estefanía Yerovi, María Delgado-Yagu E, Cristina Galeano, Saúl Pampa-Saico, Maria Teresa Tenorio, Fernando Liaño
INTRODUCTION: The anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis with renal involvement are associated with high morbi-mortality. In this study we analyse if the prognosis of these diseases have improved in recent years, and which factors influence the outcomes. MATERIAL AND METHODS: Retrospective single-centre observational study, which included all patients diagnosed with microscopic polyangiitis and granulomatosis with polyangiitis with renal involvement in the last 25 years...
January 6, 2017: Medicina Clínica
https://www.readbyqxmd.com/read/28196049/hiv-infection-in-the-native-and-allograft-kidney-implications-for-management-diagnosis-and-transplantation
#12
Véronique Avettand-Fenoël, Christine Rouzioux, Christophe Legendre, Guillaume Canaud
The native kidney is a reservoir for HIV-1 and a site of viral replication, similar to lymphoid tissue, gut-associated lymphoid tissue or semen. The ability of the virus to persist may result from either a true latency or sequestration in an anatomic site that is not effectively exposed to antiretroviral therapy. The presence of HIV in kidney epithelial cells will lead progressively to end-stage renal disease. For decades, HIV-infected patients were excluded from consideration for kidney transplantation. Hemodialysis and peritoneal dialysis were the only forms of treatment available to these patients...
February 11, 2017: Transplantation
https://www.readbyqxmd.com/read/28194887/atgl-deficiency-induces-podocyte-apoptosis-and-leads-to-glomerular-filtration-barrier-damage
#13
Wen Chen, Youzhao Jiang, Jian Han, Jiongyu Hu, Ting He, Tiantian Yan, Huang Na, Qiong Zhang, Hao Mei, Yong Liao, Yuesheng Huang, Bing Chen
Abnormal lipid metabolism, renal lipid accumulation and lipotoxicity are associated with the pathological features of glomerulopathy. However, the mechanisms by which lipid accumulation leads to the development or progression of this disease have not been fully elucidated. In this work, we have identified a role for the rate-limiting enzyme in lipolysis, adipose triglyceride lipase (ATGL; also called patatin-like phospholipase domain-containing protein 2(PNPLP2), in renal lipid metabolism and kidney disease...
February 14, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28194476/-diagnosis-and-treatment-of-chronic-kidney-disease
#14
M Girndt
Chronic kidney disease is defined by decreased glomerular filtration rate or proteinuria. Diabetic nephropathy and hypertensive renal damage are responsible for the majority of cases. The initiation of therapy has to consider if causal treatment of the underlying disease is possible and indicated. In all patients, even if specific treatment is not possible, therapy should aim at reducing progression of kidney failure. Chronic kidney diseases tend to intrinsic deterioration that persists after cessation of the causative damaging pathomechanism...
February 13, 2017: Der Internist
https://www.readbyqxmd.com/read/28193784/impaired-myogenic-response-of-the-afferent-arteriole-contributes-to-the-increased-susceptibility-to-renal-disease-in-milan-normotensive-rats
#15
Ying Ge, Fan Fan, Sean P Didion, Richard J Roman
Milan normotensive (MNS) rats are more susceptible to the development of renal disease than Milan hypertensive (MHS) rats, but the genes and pathways involved are unknown. This study compared the myogenic response of isolated perfused afferent arterioles (Af-Art) and autoregulation of renal blood flow (RBF) and glomerular capillary pressure (Pgc) in 6-9-week-old MNS and MHS rats. The diameter of the Af-Art of MHS rats decreased significantly from 14.3 ± 0.5 to 11.5 ± 0.6 μm when perfusion pressure was elevated from 60 to 120 mmHg...
February 2017: Physiological Reports
https://www.readbyqxmd.com/read/28193605/potential-deaths-averted-and-serious-adverse-events-incurred-from-adoption-of-the-sprint-intensive-blood-pressure-regimen-in-the-u-s-projections-from-nhanes
#16
Adam P Bress, Holly Kramer, Rasha Khatib, Srinivasan Beddhu, Alfred K Cheung, Rachel Hess, Vinod K Bansal, Guichan Cao, Jerry Yee, Andrew E Moran, Ramon A Durazo-Arvizu, Paul Muntner, Richard S Cooper
Background -The Systolic Blood Pressure Intervention Trial (SPRINT) demonstrated a 27% reduction in all-cause mortality with a systolic blood-pressure (SBP) goal of <120 mmHg versus <140 mmHg among U.S. adults at high cardiovascular disease (CVD) risk but without diabetes, stroke, or heart failure. To quantify the potential benefits and risks of SPRINT intensive goal implementation, we estimated the deaths prevented and excess serious adverse events (SAEs) incurred if the SPRINT intensive SBP treatment goal was implemented in all eligible U...
February 13, 2017: Circulation
https://www.readbyqxmd.com/read/28193247/efficacy-and-safety-of-calcineurin-inhibitor-treatment-for-iga-nephropathy-a-meta-analysis
#17
Yu-Huan Song, Guang-Yan Cai, Yue-Fei Xiao, Yi-Ping Wang, Bao-Shi Yuan, Yuan-Yuan Xia, Si-Yang Wang, Pu Chen, Shu-Wen Liu, Xiang-Mei Chen
BACKGROUND: IgA nephropathy is the most common progressive glomerular disease to end stage renal failure worldwide. Calcineurin inhibitors (CNIs) is a selective immunosuppressant widely used in organ transplantation. The efficacy and safety of calcineurin inhibitors for the treatment of IgA nephropathy remain uncertain. METHODS: We performed a systematic literature search using the PubMed, Embase, Science Citation Index, Ovid evidence-based medicine, Chinese Biomedical Literature (CBM) and Chinese science and technology periodicals (CNKI, VIP, and Wan Fang) for randomized, controlled trials of CNIs therapy of IgA nephropathy...
February 13, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28192891/sleep-duration-and-chronic-kidney-disease-the-korean-genome-and-epidemiology-study-koges-kangwha-study
#18
Hansol Choi, Hyeon Chang Kim, Joo Young Lee, Ju-Mi Lee, Dong Phil Choi, Il Suh
Background/Aims: Sleep duration affects health in various ways. The objective of this study was to investigate the associations of sleep duration with chronic kidney disease (CKD) in a Korean adult population. Methods: This cross-sectional analysis was conducted for total of 1,360 participants who completed baseline health examinations for the Korean Genome and Epidemiology Study-Kangwha study in 2010 to 2011. Sleep habits were measured by an interviewer-assisted questionnaire...
February 15, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28191821/crucial-role-of-mesangial-cell-derived-connective-tissue-growth-factor-in-a-mouse-model-of-anti-glomerular-basement-membrane-glomerulonephritis
#19
Naohiro Toda, Kiyoshi Mori, Masato Kasahara, Akira Ishii, Kenichi Koga, Shoko Ohno, Keita P Mori, Yukiko Kato, Keisuke Osaki, Takashige Kuwabara, Katsutoshi Kojima, Daisuke Taura, Masakatsu Sone, Taiji Matsusaka, Kazuwa Nakao, Masashi Mukoyama, Motoko Yanagita, Hideki Yokoi
Connective tissue growth factor (CTGF) coordinates the signaling of growth factors and promotes fibrosis. Neonatal death of systemic CTGF knockout (KO) mice has hampered analysis of CTGF in adult renal diseases. We established 3 types of CTGF conditional KO (cKO) mice to investigate a role and source of CTGF in anti-glomerular basement membrane (GBM) glomerulonephritis. Tamoxifen-inducible systemic CTGF (Rosa-CTGF) cKO mice exhibited reduced proteinuria with ameliorated crescent formation and mesangial expansion in anti-GBM nephritis after induction...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28190774/reducing-vegf-b-signaling-ameliorates-renal-lipotoxicity-and-protects-against-diabetic-kidney-disease
#20
Annelie Falkevall, Annika Mehlem, Isolde Palombo, Benjamin Heller Sahlgren, Lwaki Ebarasi, Liqun He, A Jimmy Ytterberg, Hannes Olauson, Jonas Axelsson, Birgitta Sundelin, Jaakko Patrakka, Pierre Scotney, Andrew Nash, Ulf Eriksson
Diabetic kidney disease (DKD) is the most common cause of severe renal disease, and few treatment options are available today that prevent the progressive loss of renal function. DKD is characterized by altered glomerular filtration and proteinuria. A common observation in DKD is the presence of renal steatosis, but the mechanism(s) underlying this observation and to what extent they contribute to disease progression are unknown. Vascular endothelial growth factor B (VEGF-B) controls muscle lipid accumulation through regulation of endothelial fatty acid transport...
February 1, 2017: Cell Metabolism
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