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https://www.readbyqxmd.com/read/29340328/nephrin-loss-can-be-used-to-predict-remission-and-long-term-renal-outcome-in%C3%A2-patients-with-minimal-change-disease
#1
Nina A van de Lest, Malu Zandbergen, Daphne H T IJpelaar, Ron Wolterbeek, Jan A Bruijn, Ingeborg M Bajema, Marion Scharpfenecker
Introduction: Minimal change disease is a common cause of nephrotic syndrome. In general, patients with minimal change disease respond to corticosteroids and have excellent long-term renal survival. However, some patients have less favorable outcome. These patients are often thought to have progressed to focal segmental glomerulosclerosis. We previously reported that a segmental loss of podocyte markers is present before the development of focal segmental glomerulosclerosis in a rat model...
January 2018: KI Reports
https://www.readbyqxmd.com/read/29340321/randomized-clinical-trial-design-to-assess-abatacept-in-resistant-nephrotic-syndrome
#2
Howard Trachtman, Debbie S Gipson, Michael Somers, Cathie Spino, Sharon Adler, Lawrence Holzman, Jeffrey B Kopp, John Sedor, Sandra Overfield, Ayanbola Elegbe, Michael Maldonado, Anna Greka
Introduction: Treatment-resistant nephrotic syndrome is a rare form of glomerular disease that occurs in children and adults. No Food and Drug Administration-approved treatments consistently achieve remission of proteinuria and preservation of kidney function. CD80 (B7-1) can be expressed on injured podocytes, and administration of abatacept (modified CTLA4-Ig based on a natural ligand to CD80) has been associated with sustained normalization of urinary protein excretion and maintenance of glomerular filtration rate in experimental and clinical settings...
January 2018: KI Reports
https://www.readbyqxmd.com/read/29340318/apol1-risk-variants-independently-associated-with-early-cardiovascular-disease-death
#3
Michael D Hughson, Wendy E Hoy, Susan A Mott, John F Bertram, Cheryl A Winkler, Jeffrey B Kopp
Introduction: The relationship of APOL1 renal risk variants to cardiovascular disease (CVD) is controversial and was the subject of this investigation. Methods: Age, cause of death, and nephrosclerosis (the latter defined by glomerulosclerosis) were analyzed in the autopsies of 162 African Americans and 136 whites genotyped for APOL1 risk alleles. Results: Sudden deaths represented >75% of CVD autopsies for both races and all-risk genotypes...
January 2018: KI Reports
https://www.readbyqxmd.com/read/29340309/strongyloides-stercoralis-associated-tip-variant-focal-segmental-glomerulosclerosis
#4
Massini Merzkani, Nupur N Uppal, Daniel W Ross, Pranisha Gautam-Goyal, Prashant Malhotra, Hitesh H Shah, Kenar D Jhaveri, Vivette D D'Agati
No abstract text is available yet for this article.
January 2018: KI Reports
https://www.readbyqxmd.com/read/29337702/changing-concepts-of-hiv-infection-and-renal-disease
#5
Jean Hou, Cynthia C Nast
PURPOSE OF REVIEW: Human immunodeficiency virus (HIV)-associated nephropathy (HIVAN) was identified as the major renal manifestation of HIV infection early in the HIV epidemic. However, HIV infection now is associated with a different spectrum of renal lesions leading to chronic kidney disease. This review examines the changes in kidney injury occurring in the current HIV era and the factors involved in this transformation of disease expression. RECENT FINDINGS: The incidence of HIVAN and opportunistic infections in HIV-infected individuals has declined in concert with the use of effective combination antiretroviral agents...
January 13, 2018: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/29337051/fermt2-links-cortical-actin-structures-plasma-membrane-tension-and-focal-adhesion-function-to-stabilize-podocyte-morphology
#6
M Yasuda-Yamahara, M Rogg, J Frimmel, P Trachte, M Helmstaedter, P Schroder, M Schiffer, C Schell, T B Huber
Simplification and retraction of podocyte protrusions, generally termed as foot process effacement, is a uniform pathological pattern observed in the majority of glomerular disease, including focal segmental glomerulosclerosis. However, it is still incompletely understood how the interaction of cortical actin structures, actomyosin contractility and focal adhesions, is being orchestrated to control foot process morphology in health and disease. By uncovering the functional role of fermitin family member 2 (FERMT2 or kindlin-2) in podocytes, we provide now evidence, how cell-extracellular matrix (ECM) interactions modulate membrane tension and actomyosin contractility...
January 11, 2018: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/29330473/endothelial-heparan-sulfate-deficiency-reduces-inflammation-and-fibrosis-in-murine-diabetic-nephropathy
#7
Ditmer T Talsma, Kirankumar Katta, Marieke A B Ettema, Berna Kel, Marion Kusche-Gullberg, Moh R Daha, Coen A Stegeman, Jacob van den Born, Lianchun Wang
Inflammation plays a vital role in the development of diabetic nephropathy, but the underlying regulatory mechanisms are only partially understood. Our previous studies demonstrated that, during acute inflammation, endothelial heparan sulfate (HS) contributes to the adhesion and transendothelial migration of leukocytes into perivascular tissues by direct interaction with L-selectin and the presentation of bound chemokines. In the current study, we aimed to assess the role of endothelial HS on chronic renal inflammation and fibrosis in a diabetic nephropathy mouse model...
January 12, 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29330340/the-adiponectin-receptor-agonist-adiporon-ameliorates-diabetic-nephropathy-in-a-model-of-type-2-diabetes
#8
Yaeni Kim, Ji Hee Lim, Min Young Kim, Eun Nim Kim, Hye Eun Yoon, Seok Joon Shin, Bum Soon Choi, Yong-Soo Kim, Yoon Sik Chang, Cheol Whee Park
Adiponectin exerts renoprotective effects against diabetic nephropathy (DN) by activating the AMP-activated protein kinase (AMPK)/peroxisome proliferative-activated receptor-α (PPARα) pathway through adiponectin receptors (AdipoRs). AdipoRon is an orally active synthetic adiponectin receptor agonist. We investigated the expression of AdipoRs and the associated intracellular pathways in 27 patients with type 2 diabetes and examined the effects of AdipoRon on DN development in male C57BLKS/J db/db mice, glomerular endothelial cells (GECs), and podocytes...
January 12, 2018: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/29328453/aldosterone-is-involved-in-the-pathogenesis-of-obesity-related-glomerulopathy-through-activation-of-wnt-%C3%AE-catenin-signaling-in-podocytes
#9
Jia-Jia Zhu, Yi-Pu Chen, Min Yang, Bao-Li Liu, Jing Dong, Hong-Rui Dong, Hong-Liang Rui, Hong Cheng
Obesity-related glomerulopathy (ORG) is morphologically characterized by glomerulomegaly with or without observable focal segmental glomerulosclerosis under light microscope, with decreased podocyte density and number, and with increased foot‑process width observed under electron microscope. The severity of podocyte injury is correlated with the degree of proteinuria and renal dysfunction. However, the pathogenesis of ORG is not well understood. The aim of the present study was to explore the possible pathogenic role of aldosterone (ALDO) in ORG...
January 5, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29327821/chronic-kidney-disease-in-patients-with-chronic-hepatitis-c-virus-infection
#10
Omer Shahab, Pegah Golabi, Zobair M Younossi
Hepatitis C virus (HCV) infection affects many organs in the body, including the liver, kidneys, skin, joints and others. Although the hepatic manifestation of HCV has been widely studied, the extrahepatic manifestaions of HCV have not been fully appreciated. Studies have shown that patients with HCV have a higher risk of chronic kidney disease and end-stage renal disease, as well as poorer outcomes after kidney transplantation. Given these findings, it is important to screen HCV patients for presence of renal impairement in a timely manner...
January 10, 2018: Minerva Gastroenterologica e Dietologica
https://www.readbyqxmd.com/read/29322432/renal-histopathological-findings-of-retinal-vasculopathy-with-cerebral-leukodystrophy
#11
Yutaka Tsubata, Takashi Morita, Tetsuo Morioka, Taiji Sasagawa, Kouzo Ikarashi, Noriko Saito, Hisaki Shimada, Shigeru Miyazaki, Shinji Sakai, Hajime Tanaka, Rie Saito, Yasuko Toyoshima, Hiroaki Nozaki, Ichiei Narita
Retinal vasculopathy with cerebral leukodystrophy (RVCL) is a rare autosomal dominant systemic microvascular disease. Neurological disorders and visual disturbance are highlighted as manifestations of RVCL; however, there are few reports focused on nephropathy. Herein, we describe detailed renal histopathological findings in a daughter and father with RVCL, proven by TREX1 genetic analysis. A kidney biopsy of the daughter, 35-year-old with asymptomatic proteinuria, revealed unique and various glomerular changes...
January 10, 2018: CEN Case Reports
https://www.readbyqxmd.com/read/29321142/differentiating-primary-genetic-and-secondary-fsgs-in-adults-a-clinicopathologic-approach
#12
An S De Vriese, Sanjeev Sethi, Karl A Nath, Richard J Glassock, Fernando C Fervenza
FSGS describes a renal histologic lesion with diverse causes and pathogenicities that are linked by podocyte injury and depletion. Subclasses of FSGS include primary, genetic, and secondary forms, the latter comprising maladaptive, viral, and drug-induced FSGS. Despite sharing certain clinical and histologic features, these subclasses differ noticeably in management and prognosis. Without an accepted nongenetic biomarker that discriminates among these FSGS types, classification of patients is often challenging...
January 10, 2018: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/29320993/distribution-of-glomerular-diseases-in-taiwan-preliminary-report-of-national-renal-biopsy-registry-publication-on-behalf-of-taiwan-society-of-nephrology
#13
Hsien-Fu Chiu, Hung-Chun Chen, Kuo-Cheng Lu, Kuo-Hsiung Shu
BACKGROUND: Despite the development of biomarkers and noninvasive imaging tools, biopsy remains the only method for correctly diagnosing patients with unexplained hematuria, proteinuria and renal failure. Renal biopsy has been performed for several decades in Taiwan; however, a national data registry is still lacking until 2013. METHODS: The Renal Biopsy Registry Committee was established within the Taiwan Society of Nephrology in January 2013. A biopsy registry format, including basic demographic data, baseline clinical features, laboratory data, and clinical and pathological diagnosis was developed...
January 10, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29319763/current-distribution-pattern-of-biopsy-proven-glomerular-disease-in-salvador-brazil-40-years-after-an-initial-assessment
#14
Washington Luis Conrado Dos-Santos, Glória Maria Maranhão Sweet, Labene Gondim Azevêdo, Maria Brandão Tavares, Maria Fernanda Sanches Soares, Caroline Vilas Boas de Melo, Márcia Fernanda Melo Carneiro, Rilma Ferreira de Souza Santos, Márcia Cristina Conrado, Daniela Teixeira Leal Braga, Marcia Carvalho Bessa, Nathanael de Freitas Pinheiro Junior, Marília Bahiense-Oliveira
INTRODUCTION: A report on the prevalence of glomerular disease diagnosed via renal biopsy in Salvador, BA, Brazil was published in 1973 and showed a predominance of membranoproliferative glomerulonephritis, which was frequently associated with hepatosplenic schistosomiasis. OBJECTIVE: In this study, we investigate the potential changes in the distribution of glomerular diseases after a period of important epidemiological transition in Brazil. METHODS: Pathology reports of all patients subjected to kidney biopsy from 2003 to 2015 in a referral nephrology service were reviewed...
October 2017: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/29319762/complement-system-and-c4d-expression-in-cases-of-membranous-nephropathy
#15
Fabiano Bichuette Custódio, Crislaine Aparecida da Silva, Fernanda Rodrigues Helmo, Juliana Reis Machado, Marlene Antônia Dos Reis
INTRODUCTION: Membranous nephropathy (MN) is one of the major causes of nephrotic syndrome. The complement system plays a key role in the pathophysiology of MN. OBJECTIVES: To identify the complement pathway possibly activated in MN cases and correlate the presence of C4d with more severe clinical and histological markers. METHODS: Sixty nine cases from renal biopsy with membranous nephropathy were investigated. The presence of C1q was analyzed by direct immunofluorescence; and expression of C4d by immunohistochemistry...
October 2017: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/29317010/a-new-model-for-fetal-programming-maternal-ramadan-type-fasting-programs-nephrogenesis
#16
M Mohany, N Ashton, A H Harrath, J R Nyengaard, S Y Alomar, S Alwasel
The effect of maternal Ramadan-type fasting (RTF) on the outcome of pregnancy, kidney development and nephron number in male rat offspring was investigated in current study. Pregnant rats were given food and water ad libitum during pregnancy (control) or restricted for 16 h per day (RTF). Kidney structure was examined during fetal life, at birth, and in early and late adulthood. Maternal body weight, food intake, relative food intake and plasma glucose levels were significantly lower (P<0.001) in the RTF group...
January 10, 2018: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/29310647/have-dipeptidyl-peptidase-4-inhibitors-ameliorated-the-vascular-complications-of-type-2-diabetes-in-large-scale-trials-the-potential-confounding-effect-of-stem-cell-chemokines
#17
REVIEW
Milton Packer
Drugs that inhibit dipeptidyl peptidase-4 (DPP-4) are conventionally regarded as incretin-based agents that signal through the glucagon-like peptide-1 (GLP-1) receptor. However, inhibition of DPP-4 also potentiates the stem cell chemokine, stromal cell-derived factor-1 (SDF-1), which can promote inflammation, proliferative responses and neovascularization. In large-scale cardiovascular outcome trials, enhanced GLP-1 signaling has reduced the risk of atherosclerotic ischemic events, potentially because GLP-1 retards the growth and increases the stability of atherosclerotic plaques...
January 8, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29310486/focal-segmental-glomerulosclerosis-in-children-complicated-by-posterior-reversible-encephalopathy-syndrome
#18
Magdalena Stârcea, Cristina Gavrilovici, Mihaela Munteanu, Ingrith Miron
An uncommon side effect of cyclosporine A (CsA) use is posterior reversible encephalopathy syndrome (PRES). PRES usually develops because of disturbed capacity of posterior cerebral blood flow to autoregulate an acute rise in blood pressure. We present the case of a 10-year-old girl who was previously diagnosed in our department with focal segmental glomerulosclerosis. She was treated with CsA and developed seizures, progressive loss of consciousness, and visual disturbance on the 7th day of treatment. Brain magnetic resonance imaging showed degeneration of white matter with diffuse demyelination in the parietal and posterior occipital lobes, consistent with the diagnosis of PRES...
January 1, 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29282004/pathologic-analysis-of-non-neoplastic-parenchyma-in-renal-cell-carcinoma-a-comprehensive-observation-in-radical-nephrectomy-specimens
#19
Xun Wang, Qiang Liu, Wen Kong, Jiwei Huang, Yonghui Chen, Yiran Huang, Jin Zhang
BACKGROUND: This study provides a comprehensive examination of the histological features of non-neoplastic parenchyma in renal cell carcinoma (RCC). We prospectively collected radical nephrectomy (RN) specimens, to analyze the histological changes within peritumoral and distant parenchyma. METHODS: Data of patients who underwent RN and had no known history of diabetes, hypertension, hyperlipidemia, or chronic kidney disease etc., were prospectively collected. Tumor pseudo-capsule (PC), and parenchyma within 2 cm from tumor margin, were pathologically assessed...
December 28, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29277549/the-mtor-promotes-oxidative-stress-induced-apoptosis-of-mesangial-cells-in-diabetic-nephropathy
#20
Qian Lu, Yuexian Zhou, Meng Hao, Chengcheng Li, Jin Wang, Fanglin Shu, Lei Du, Xia Zhu, Qiaoli Zhang, Xiaoxing Yin
Glomerular mesangial cell (MC) apoptosis is one of the important mechanisms of glomerulosclerosis, which induces an increased severity of albuminuria and promotes the development of diabetic nephropathy (DN). However, the mechanism by which high glucose (HG) induces MCs apoptosis is not fully understood. In the present study, we investigated the effects of mTOR signalling on apoptosis in cultured MCs exposed to HG and in type I diabetes, and tried to clarify the specific mechanisms underlying these effects...
December 22, 2017: Molecular and Cellular Endocrinology
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