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IgA nephropathy

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https://www.readbyqxmd.com/read/29137483/molecular-profiling-in-iga-nephropathy-and-focal-and-segmental-glomerulosclerosis
#1
I Tycová, P Hrubá, D Maixnerová, E Girmanová, P Mrázová, L Straňavová, R Zachoval, M Merta, J Slatinská, M Kollár, E Honsová, V Tesař, O Viklický
The aim of the study was to characterize by molecular profiling two glomerular diseases: IgA nephropathy (IgAN) and focal segmental glomerulosclerosis (FSGS) and to identify potential molecular markers of IgAN and FSGS progression. The expressions of 90 immune-related genes were compared in biopsies of patients with IgAN (n=33), FSGS (n=17) and in controls (n=11) using RT-qPCR. To identify markers of disease progression, gene expression was compared between progressors and non-progressors in 1 year follow-up...
November 10, 2017: Physiological Research
https://www.readbyqxmd.com/read/29130997/non-diabetic-kidney-disease-in-type-2-diabetic-patients-prevalence-clinical-predictors-and-outcomes
#2
Siyar Erdogmus, Saba Kiremitci, Zeynep Kendi Celebi, Serkan Akturk, Neval Duman, Kenan Ates, Sehsuvar Erturk, Gokhan Nergizoglu, Sim Kutlay, Sule Sengul, Arzu Ensari, Kenan Keven
BACKGROUND/AIMS: Diabetic kidney disease (DKD) is one of the most frequent microvascular complications of diabetes and is the leading cause of end-stage kidney disease worldwide. In patients with diabetes, non-diabetic kidney disease (NDKD) can also occur. NDKD can be either alone or superimposed with the DKD. In this study, we aimed to investigate the utility of kidney biopsy in patients with type 2 diabetes mellitus (T2DM) and the predictability of diagnosing DKD versus NDKD from clinical and laboratory data...
November 1, 2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29129388/iga-nephropathy-are-intravenous-steroid-pulses-more-effective-than-oral-steroids-in-relapse-prevention
#3
Ivo Laranjinha, Patrícia Matias, João Cassis, Patrícia Branco, Sância Ramos, José Diogo Barata, André Weigert
INTRODUCTION: It is recommended that IgA nephropathy (IgAN) is treated with steroids when the glomerular filtration rate (GFR) is >50ml/min and proteinuria >1g/day. Few studies have been performed comparing the two accepted steroid regimens (1g/day methylprednisolone pulses for 3 consecutive days at the beginning of months 1, 3 and 5, followed by 0.5mg/kg prednisolone on alternate days vs. 1mg/kg/day oral prednisolone). The aim of this study was to compare these two steroid regimens in IgAN treatment...
November 9, 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/29115212/endemic-influences-of-political-regimes-healthcare-systems-and-preferences-on-the-frequencies-and-incidences-of-nephropathies-in-eastern-saxony-germany%C3%A2
#4
Sam Sedaghat, Eleène Sahmila Heshmati, Thomas Frese, Wilma Gertrud Rasche, Filip Barinka, Florian Fahr, Joachim Beige, Stephan Schiekofer, Franz Maximilian Rasche
INTRODUCTION: The possible confounding influence of investigator-related preferences, available histological techniques, and healthcare systems on the frequencies and incidences of primary and secondary nephropathies was evaluated in this long-term observation. MATERIALS AND METHODS: The observation time from 1983 to 2010 was divided in regard to the political regimes: a) prior to and after German reunification: German Democratic Republic (GDR, period 1 from 1983 to 1990)/Federal Republic of Germany (FRG, period 2 from 1990 to 2010); and the two heads of the division of nephrology, b) conductor 1 (1983 - 2006) and conductor 2 (2006 - 2010)...
November 8, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/29114042/deletion-variants-of-cfhr1-and-cfhr3-associate-with-mesangial-immune-deposits-but-not-with-progression-of-iga-nephropathy
#5
Perrine Jullien, Blandine Laurent, Guillaume Claisse, Ingrid Masson, Miriana Dinic, Damien Thibaudin, Francois Berthoux, Eric Alamartine, Christophe Mariat, Nicolas Maillard
Activation of complement through the alternative pathway has a key role in the pathogenesis of IgA nephropathy (IgAN). Large, international, genome-wide association studies have shown that deletion of complement factor H-related genes 1 and 3 (CFHR3,1Δ) is associated with a reduced risk of developing IgAN, although the prognostic value of these deletions in IgAN remains unknown. Here, we compared the renal outcomes of patients with IgAN according to their CFHR3,1Δ genotype. This retrospective, monocentric cohort study included 639 white patients with biopsy-proven IgAN since 1979 (mean age at diagnosis, 40...
November 7, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/29106654/the-population-level-costs-of-immunosuppression-medications-for-the-treatment-of-glomerulonephritis-are-increasing-over-time-due-to-changing-patterns-of-practice
#6
Sean Barbour, Clifford Lo, Gabriela Espino-Hernandez, Sharareh Sajjadi, John Feehally, Scott Klarenbach, Jagbir Gill
Background: Immunosuppression (IS) is the main treatment for most types of glomerulonephritis (GN). Quantifying the cost of IS is necessary to ensure equitable access to therapies and optimal health outcomes, but the real-world cost of IS treatment for GN is largely unknown. We examined temporal changes in the population-level IS medication costs for GN over a 14-year period in a large Canadian province. Methods: We linked a provincial pathology database (containing all GN cases from 2000 to 2012) with renal and medication administrative databases to capture clinical characteristics and IS medications, with follow-up until 2013...
July 2, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29106637/glomerular-disease-frequencies-by-race-sex-and-region-results-from-the-international-kidney-biopsy-survey
#7
Michelle M O'Shaughnessy, Susan L Hogan, Bawana D Thompson, Rosanna Coppo, Agnes B Fogo, J Charles Jennette
Background: Large-scale studies comparing glomerular disease frequencies across continents are lacking. Methods: We surveyed 29 nephropathology laboratories in four continents using a standardized data collection form. We obtained recent consecutive kidney biopsy diagnosis frequencies at each center and summary demographics for each diagnosis. This report focuses on glomerular disease frequencies by region and race/ethnicity. Results: Among 42 603 glomerular disease diagnoses reported (median age 47 years, 52% male, 57% white), from a total of 60 340 diagnoses, glomerular disease subtype frequencies differed considerably by continent...
July 2, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29106627/bi-nucleation-of-podocytes-is-uniformly-accompanied-by-foot-processes-widening-in-renal-disease
#8
Johanna Mühldorfer, Eva Pfister, Maike Büttner-Herold, Monika Klewer, Kerstin Amann, Christoph Daniel
Background: Podocytes are terminally differentiated glomerular cells expressing a highly complex architecture and lacking the ability to proliferate. However, during renal injury or stress these cells can re-enter into the cell cycle but fail to divide. As a consequence, bi- and multi-nucleated podocytes can be identified in renal biopsies from patients with various kidney diseases. It is still unclear whether the occurrence of such cells is dependent on or correlates with renal damage and if bi- or multi-nucleation results in ultrastructural alterations such as e...
July 2, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29101552/long-term-renal-outcome-in-pediatric-glomerulonephritis-associated-with-crescent-formation
#9
Pornpimol Rianthavorn, Manunya Chacranon
BACKGROUND: Information on long-term renal outcome of pediatric glomerulonephritis associated with crescent formation is limited. A single center retrospective study was conducted to assess long-term renal survival and to determine whether the 2010 classification for antineutrophil cytoplasmic antibody (ANCA)-associated glomerulonephritis can predict renal outcome in pediatric glomerulonephritis associated with crescent formation. METHODS: Biopsy and clinical data of children, aged ≤ 18 years with ≥ 10 glomeruli and ≥ 10% crescentic glomeruli during January 1998 to December 2015, were reviewed...
November 3, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/29100328/the-interaction-effect-of-rs4077515-and-rs17019602-increases-the-susceptibility-to-iga-nephropathy
#10
Changwei Wu, Guisen Li, Li Wang
Background: Immunoglobulin A nephropathy (IgAN), the most common form of primary glomerular diseases worldwide, is a complex multifactorial disease. Previous genome wide association studies (GWAS) reported that variants CARD9 and VAV3 genes were associated with immunoregulation and susceptibility to IgAN. In this study, we further validated the associations and explored the interaction effect of rs4077515 and rs17019602 in IgAN patients. Results: There was no significant correlation between the two variants and IgAN (P > 0...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29095887/seasonal-proteinuria-changes-in-iga-nephropathy-patients-after-proteinuria-remission
#11
Koji Inagaki, Yoshinari Yasuda, Masahiko Ando, Ahmad Baseer Kaihan, Asaka Hachiya, Takaya Ozeki, Manabu Hishida, Takahiro Imaizumi, Takayuki Katsuno, Sawako Kato, Naotake Tsuboi, Shoichi Maruyama
BACKGROUND: Proteinuria is a powerful prognostic factor for end-stage renal disease in IgA nephropathy (IgAN) patients. However, it is not known whether proteinuria exacerbations are related to seasonal changes. METHODS: We retrospectively enrolled consecutive patients diagnosed with IgAN by kidney biopsy at our hospital between 2002 and 2014. Proteinuria remission was defined as urinary protein <0.3 g/gCr in two consecutive outpatient urinalyses and exacerbation as urinary protein ≥0...
2017: PloS One
https://www.readbyqxmd.com/read/29095250/determination-of-the-optimal-target-level-of-proteinuria-in-the-management-of-patients-with-glomerular-diseases-by-using-different-definitions-of-proteinuria
#12
Youn Kyung Kee, Chan-Yun Yoon, Seung Jun Kim, Sung Jin Moon, Chan Ho Kim, Jung Tak Park, Beom Jin Lim, Tae Ik Chang, Ea Wha Kang, Jeong Hae Kie, Tae-Hyun Yoo, Hyun Joo Jeong, Shin-Wook Kang, Seung Hyeok Han
Proteinuria is a major determinant of adverse renal outcome, and its reduction slows renal progression in glomerular diseases. However, the optimal target of proteinuria in glomerular diseases is unclear, and discrepancies in the definition of proteinuria produce ambiguous findings. Here we investigated the optimal target of proteinuria by using different definitions of proteinuria. We analyzed 574 IgA nephropathy (IgAN), 175 membranous nephropathy (MGN), and 177 focal segmental glomerulosclerosis (FSGS) cases from 3 Korean kidney centers...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29093399/the-renoprotective-effects-of-docosahexaenoic-acid-as-an-add-on-therapy-in-patients-receiving-eicosapentaenoic-acid-as-treatment-for-iga-nephropathy-a-pilot-uncontrolled-trial
#13
Takahito Moriyama, Saeko Kumon, Takahiro Kamiyama, Kazunori Karasawa, Keiko Uchida, Kosaku Nitta
Objective Docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) have been reported to have beneficial effects in patients with IgA nephropathy (IgAN). Although DHA and EPA have different mechanisms of action, no study to date has assessed their individual actions in patients with IgAN. This study therefore analyzed the effects administering DHA in addition to EPA for the treatment of IgAN. Methods Twenty-one IgAN patients who were being treated with EPA (1,800 mg/day) were switched to EPA (1,860 mg/day) and DHA (1,500 mg/day)...
November 1, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29092674/autoantibodies-against-complement-components-in-systemic-lupus-erythematosus-role-in-the-pathogenesis-and-clinical-manifestations
#14
M H Hristova, V S Stoyanova
Many complement structures and a number of additional factors, i.e. autoantibodies, receptors, hormones and cytokines, are implicated in the complex pathogenesis of systemic lupus erythematosus. Genetic defects in the complement as well as functional deficiency due to antibodies against its components lead to different pathological conditions, usually clinically presented. Among them hypocomplementemic urticarial vasculitis, different types of glomerulonephritis as dense deposit disease, IgA nephropathy, atypical haemolytic uremic syndrome and lupus nephritis are very common...
December 2017: Lupus
https://www.readbyqxmd.com/read/29079181/de-novo-immune-complex-deposition-in-kidney-allografts-a-series-of-32-patients
#15
Isaac E Lloyd, Faris Ahmed, Monica P Revelo, Mazdak A Khalighi
Immune complex deposition in kidney allografts can include both recurrent and de novo processes. Recurrent glomerulonephritis is a well-recognized phenomenon and has been shown to be a common cause of allograft failure. De novo immune complex-mediated disease remains relatively poorly characterized, likely owing to the less frequent use of immunofluorescence and electron microscopy in the transplant setting. We performed a retrospective review of kidney allograft biopsies showing glomerular immune complex deposition...
October 24, 2017: Human Pathology
https://www.readbyqxmd.com/read/29069794/association-between-mphosph6-gene-polymorphisms-and-iga-nephropathy-risk-in-a-chinese-han-population
#16
Xiaohong Yang, Yin Zhang, Wenning Li, Yan Su, Dan Niu, Yanni Wang, Haiyang Huang, Hui Han, Daofa Zhang, Maowei Xie, Huiluan Su, Wentan Xu, Jiali Wei
Multiple genetic and environmental factors together contribute to the risk of IgA nephropathy (IgAN). MPHOSPH6 play an important role in the recruitment of the exosome to the pre-rRNA. However, to date, little information is found about the association between MPHOSPH6 polymorphisms and the IgAN risk. In this case-control study, we genotyped five single nucleotide polymorphisms (SNPs) in MPHOSPH6 gene in 416 IgAN cases and 495 controls using Sequenom Mass-ARRAY technology and evaluated their association with IgAN using the χ2 and genetic model analysis...
September 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29069743/determination-of-il-1b-rs16944-and-il-6-rs1800796-genetic-polymorphisms-in-iga-nephropathy-in-a-northwest-chinese-han-population
#17
Daofa Zhang, Maowei Xie, Xiaohong Yang, Yin Zhang, Yan Su, Yanni Wang, Haiyang Huang, Hui Han, Wenning Li, Keying Fu, Huiluan Su, Wentan Xu, Yeguang Han, Ru Wang, Pei Zhang, Wei Wu, Yun Huang, Daojun Chen, Tianbo Jin, Jiali Wei
IgA nephropathy (IgAN) is the most common form of primary glomerulonephritis worldwide, but etiology and pathogenesis continue to be poorly understood. Polymorphisms in the cytokine genes may play a role in the etiology and pathogenesis of IgAN. The incidence of different between diverse ethnic groups suggested important genetic influences on its pathogenesis. We genotype 10 single nucleotide polymorphisms (SNPs) in IL-1B and IL-6 gene using Sequenom Mass-ARRAY technology from 417 IgAN patients and 463 healthy controls of the Chinese Han population...
September 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29066732/associations-between-genetic-risk-variants-for-kidney-diseases-and-kidney-disease-etiology
#18
Sebastian Wunnenburger, Ulla T Schultheiss, Gerd Walz, Birgit Hausknecht, Arif B Ekici, Florian Kronenberg, Kai-Uwe Eckardt, Anna Köttgen, Matthias Wuttke
Chronic kidney disease (CKD) is a global health problem with a genetic component. Genome-wide association studies have identified variants associated with specific CKD etiologies, but their genetic overlap has not been well studied. This study examined SNP associations across different CKD etiologies and CKD stages using data from 5,034 CKD patients of the German Chronic Kidney Disease study. In addition to confirming known associations, a systemic lupus erythematosus-associated risk variant at TNXB was also associated with CKD attributed to type 1 diabetes (p = 2...
October 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29056168/cystic-fibrosis-a-risk-condition-for-renal-disease
#19
Domenico Santoro, Adele Postorino, Cristina Lucanto, Stefano Costa, Simona Cristadoro, Salvatore Pellegrino, Giovanni Conti, Michele Buemi, Giuseppe Magazzù, Guido Bellinghieri
OBJECTIVE: Cystic fibrosis (CF) is the most common autosomal recessive disease affecting the Caucasian population, with a birth incidence ranging between 1:2,500 and 1:1,800. It is caused by mutations in the CF transmembrane regulator gene which is localized on 7 chromosomes. Renal disease is reported as a relatively rare complication in adult patient with CF. We evaluated proteinuria and chronic renal failure (CRF) in a population of patients with CF. METHODS: A retrospective study was carried out in a referral center for CF at University of Messina in Italy...
November 2017: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/29054943/non-infectious-aortitis-in-an-immunosuppressed-renal-transplant-recipient-with-iga-nephropathy
#20
Charlotte M Snead, Stephen C Crockett, Phillippa K Bailey
A 54-year-old woman presented with atypical chest pain, fever and malaise. She was immunosuppressed with three agents following a living-donor kidney transplant 1 year previously. Her native kidney failure was secondary to biopsy-demonstrated crescentic IgA nephropathy, with systemic involvement. A CT pulmonary angiogram revealed an inflammatory cuff of soft tissue around the descending thoracic aorta suggesting aortitis. Inflammatory markers were elevated. Given her immunosuppression, the patient was screened extensively for infective causes and was empirically commenced on intravenous meropenem...
October 19, 2017: BMJ Case Reports
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