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https://www.readbyqxmd.com/read/28658762/role-of-immunofluorescence-in-adult-onset-nephrotic-syndrome-a-study-in-a-tertiary-care-centre-of-western-india
#1
Sharada Rane, Prerana Mutyal, Nicholas Dcunha, Mayur Parkhi, Meenal Jadhav
INTRODUCTION: Study of renal Immunofluorescence (IF) is an ancillary but essential technique in evaluation of renal biopsies in glomerulopathies and also it enlightens on the pathogenesis of nephrotic syndrome. AIM: To determine the role of IF in evaluating definite subtyping and diagnosis of adult onset nephrotic syndrome and attempting clinicopathological correlation. MATERIALS AND METHODS: A total of 52 patients of adult onset nephrotic syndrome were evaluated clinically and with pertinent investigations; and subjected to USG guided percutaneous renal biopsy which was processed and stained for light microscopy and for immunofluorescence by direct method (DIF) using antibodies against IgG, IgM, IgA and C3...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28578628/relationship-between-immunoglobulin-deposition-and-early-lesions-of-progressive-glomerulonephropathy-in-young-common-marmosets
#2
Naoaki Yamada, Nanako Hashimoto, Junichi Kamiie, Takuya Doi, Junko Sato, Takeshi Inoue, Kinji Shirota, Minoru Tsuchitani
The authors previously investigated progressive glomerulonephropathy in 2- to 11-year-old common marmosets and characterized age-related changes of the renal glomeruli and development of tubulointerstitial lesions. In this study, immunoglobulin deposition and ultrastructural changes of the glomeruli were investigated in 5 young marmosets from 6 months to 3 years of age with pre-onset or early glomerulonephropathy. In all animals, the foot processes of podocytes were effaced, and IgM was deposited into the glomeruli...
January 1, 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/28573371/frequency-of-familial-mediterranean-fever-mefv-gene-mutations-in-patients-with-biopsy-proven-primary-glomerulonephritis
#3
Can Huzmeli, Ferhan Candan, Gokhan Bagci, Demet Alaygut, Ali Yilmaz, Asim Gedikli, Binnur Bagci, Meryem Timucin, Ilhan Sezgin, Mansur Kayatas
Primary glomerulopathies are those disorders that affect glomerular structure, function, or both in the absence of a multisystem disorder. We aimed to evaluate the frequency of MEFV gene mutation to show possible coexistence of FMF in patients diagnosed with biopsy-proven primary glomerulonephritis (GN). A total of 64 patients with biopsy-proven primary GN were included in the study. MEFV gene mutations examined retrospectively. The mean age of patients was 39.6 ± 13.4 (range 18-69), 35 of patients were female and 29 of patients were male...
June 1, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28545410/combined-proximal-tubulopathy-crystal-storing-histiocytosis-and-cast-nephropathy-in-a-patient-with-light-chain-multiple-myeloma
#4
Chung-Kuan Wu, An-Hang Yang, Hung-Chih Lai, Bing-Shi Lin
BACKGROUND: The diagnosis of myeloma, a plasma dyscrasia, often results from the workup of unexplained renal disease. Persistent renal failure in myeloma is commonly caused by tubular nephropathy due to circulating immunoglobulins and free light chains. Myeloma cast nephropathy is characterized by crystalline precipitates of monoclonal light chains within distal tubules. Immunoglobulin crystallization rarely occurs intracellularly, within proximal tubular cells (light chain proximal tubulopathy) and interstitial histiocytes (crystal-storing histiocytosis)...
May 25, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28509128/a-case-of-rapid-amelioration-of-hepatitis-c-virus-associated-cryoglobulinemic-membranoproliferative-glomerulonephritis-treated-by-interferon-free-directly-acting-antivirals-for-hcv-in-the-absence-of-immunosuppressant
#5
Fumiaki Obata, Taichi Murakami, Junko Miyagi, Sayo Ueda, Taizo Inagaki, Masanori Minato, Hiroyuki Ono, Kenji Nishimura, Eriko Shibata, Masanori Tamaki, Sakiya Yoshimoto, Fumi Kishi, Seiji Kishi, Motokazu Matsuura, Kojiro Nagai, Hideharu Abe, Toshio Doi
Mixed cryoglobulinemic syndrome, which is a systemic vasculitis characterized by the immune complex deposition in small- and medium-sized arteries and most often due to chronic hepatitis C virus (HCV) infection, sometimes clinically manifests as refractory glomerulonephritis or nephritic syndrome. Patients with mixed cryoglobulinemic nephropathy who have a rapidly progressive glomerulonephritis should receive immunosuppressive therapy. After disease stabilization, patients should receive concurrent therapy for the underlying HCV infection...
May 2017: CEN Case Reports
https://www.readbyqxmd.com/read/28291506/immunotactoid-glomerulopathy-leading-to-the-discovery-of-poems-syndrome%C3%A2
#6
Carole Philipponnet, Jean-Louis Kemeny, Cyril Garrouste, Martin Soubrier, Anne-Elisabeth Heng
Monoclonal gammopathy of renal significance (MGRS) can manifest in many different ways depending on the nature of the immunoglobulin and its physicochemical properties. MGRS can lead to the discovery of a hematological malignancy. We report the case of a 32-year-old female patient who underwent renal biopsy on account of an impure nephrotic syndrome associated with immunoglobulin (Ig)G κ monoclonal gammopathy. Histological analysis revealed membranoproliferative glomerulonephritis with IgG, IgM, κ, λ, and C3 deposits...
March 14, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28182703/nephropathy-in-pparg-null-mice-highlights-ppar%C3%AE-systemic-activities-in-metabolism-and-in-the-immune-system
#7
Barbara Toffoli, Federica Gilardi, Carine Winkler, Magnus Soderberg, Laura Kowalczuk, Yvan Arsenijevic, Krister Bamberg, Olivier Bonny, Béatrice Desvergne
Peroxisome proliferator-activated receptor γ (PPARγ) is a ligand-dependent transcription factor involved in many aspects of metabolism, immune response, and development. Total-body deletion of the two Pparg alleles provoked generalized lipoatrophy along with severe type 2 diabetes. Herein, we explore the appearance and development of structural and functional alterations of the kidney, comparing Pparg null-mice to their littermate controls (carrying Pparg floxed alleles). We show that renal hypertrophy and functional alterations with increased glucosuria and albuminuria are already present in 3 weeks-old Pparg null-mice...
2017: PloS One
https://www.readbyqxmd.com/read/28098102/evaluation-of-renal-lesions-and-clinicopathologic-correlation-in-rheumatoid-arthritis
#8
Periyasamy Muthukumar, Jeyachandran Dhanapriya, Natarajan Gopalakrishnan, Thanigachalam Dineshkumar, Ramanathan Sakthirajan, T Balasubramaniyan
The most common causes of renal disease in rheumatoid arthritis (RA) are glomerulonephritis (GN), amyloidosis, tubulo-interstitial nephritis, and drug toxicity. Our aim was to evaluate the clinicopathologic correlation of renal lesions and to assess the course and prognosis of renal disease in patients with RA. We conducted a prospective observational study in all adult patients with RA between July 2010 and June 2015. The total number of patients studied was 90, with a female:male ratio of 2.3:1. Mean follow-up duration was 30 ± 6...
January 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28097080/immunoglobulin-m-nephropathy-in-a-patient-with-wilson-s-disease
#9
Zain Ul Abideen, Zoya Sajjad, Asna Haroon Khan, Nadira Mamoon, Muhammad Bilal, Khaja Hameeduddin Mujtaba Quadri
Immunoglobulin M nephropathy (IgMN) is characterized by the deposition of immunoglobulin M in a dominant distribution in the renal glomeruli. Primary immunoglobulin M nephropathy is diagnosed after consistent light microscopy (LM), immunofluorescence (IF), electron microscopy (EM) results, and exclusion of known systemic disorders causing immunoglobulin M deposition in the glomeruli. The secondary disease has been reported with a few conditions though it has never been reported with any primary disease of the liver...
December 13, 2016: Curēus
https://www.readbyqxmd.com/read/27539757/frequency-of-iga-nephropathy-presenting-at-a-tertiary-care-hospital-in-pakistan
#10
Shahana Arshi, Humaira Nasir, Ghias-Ud-Din Butt, Aasiya Niazi, Nadira Mamoon, Sana Roshan Qamar, Rabia Mushtaq
OBJECTIVE: To determine the frequency of IgAnephropathy presenting at a tertiary care hospital. STUDY DESIGN: Across sectional, observational study. PLACE AND DURATION OF STUDY: Pakistan Institute of Medical Sciences, Islamabad and Shifa International Hospital, Islamabad, Pakistan, from November 2008 to November 2014. METHODOLOGY: This was a retrospective analysis of renal biopsies for the diagnosis of nephropathy during the study period...
August 2016: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/27504298/non-secretory-myeloma-diagnosed-on-renal-biopsy-as-cast-nephropathy
#11
Sumit Grover, Pavneet Kaur Selhi, Neena Sood, Jasvinder Singh Sandhu, Harpreet Kaur
Multiple myeloma is a disorder of plasma cells which can involve kidneys in the form of cast nephropathy. Neoplastic plasma cells produce either complete immunoglobulins or fragments of immunoglobulins leading to a monoclonal spike in the serum and/or Bence Jones proteinuria. Very few patients present as non-secretory myeloma when no immunoglobulins (M spike) are produced or only light chains are secreted which can only be detected in urine. Acute renal failure due to cast nephropathy can rarely be the first presentation of multiple myeloma...
June 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27468978/renal-disease-related-to-waldenstr%C3%A3-m-macroglobulinaemia-incidence-pathology-and-clinical-outcomes
#12
Josephine M Vos, Joshua Gustine, Helmut G Rennke, Zachary Hunter, Robert J Manning, Toni E Dubeau, Kirsten Meid, Monique C Minnema, Marie-Jose Kersten, Steven P Treon, Jorge J Castillo
The incidence and prognostic impact of nephropathy related to Waldenström macroglobulinaemia (WM) is currently unknown. We performed a retrospective study to assess biopsy-confirmed WM-related nephropathy in a cohort of 1391 WM patients seen at a single academic institution. A total of 44 cases were identified, the estimated cumulative incidence was 5·1% at 15 years. There was a wide variation in kidney pathology, some directly related to the WM: amyloidosis (n = 11, 25%), monoclonal-IgM deposition disease/cryoglobulinaemia (n = 10, 23%), lymphoplasmacytic lymphoma infiltration (n = 8, 18%), light-chain deposition disease (n = 4, 9%) and light-chain cast nephropathy (n = 4, 9%), and some probably related to the WM: thrombotic microangiopathy (TMA) (n = 3, 7%), minimal change disease (n = 2, 5%), membranous nephropathy (n = 1, 2%) and crystal-storing tubulopathy (n = 1, 2%)...
November 2016: British Journal of Haematology
https://www.readbyqxmd.com/read/27274095/high-frequency-of-immunodeficiency-like-states-in-systemic-lupus-erythematosus-a-cross-sectional-study-in-300-consecutive-patients
#13
Sandro F Perazzio, Átila Granados, Reinaldo Salomão, Neusa P Silva, Magda Carneiro-Sampaio, Luis Eduardo C Andrade
OBJECTIVE: To determine the frequency of immunodeficiency-like states in SLE and related clinical features. METHODS: Three hundred and fifteen SLE patients and 301 controls were evaluated for C4A and C4B gene copy number, immunoglobulin isotypes, IgG subclasses, total haemolytic complement (CH50), C2, C3 and neutrophil oxidative burst. C2 and C3 genes were sequenced in cases of low C2 or C3 levels. Those presenting abnormal CH50 with normal C2 and C3 underwent C1q-C9 determination...
September 2016: Rheumatology
https://www.readbyqxmd.com/read/27267646/iga-nephropathy-in-systemic-lupus-erythematosus-patients-case-report-and-literature-review
#14
Leonardo Sales da Silva, Bruna Laiza Fontes Almeida, Ana Karla Guedes de Melo, Danielle Christine Soares Egypto de Brito, Alessandra Sousa Braz, Eutília Andrade Medeiros Freire
Systemic erythematosus lupus (SLE) is a multisystemic autoimmune disease which has nephritis as one of the most striking manifestations. Although it can coexist with other autoimmune diseases, and determine the predisposition to various infectious complications, SLE is rarely described in association with non-lupus nephropathies etiologies. We report the rare association of SLE and primary IgA nephropathy (IgAN), the most frequent primary glomerulopathy in the world population. The patient was diagnosed with SLE due to the occurrence of malar rash, alopecia, pleural effusion, proteinuria, ANA 1: 1280, nuclear fine speckled pattern, and anticardiolipin IgM and 280U/mL...
May 2016: Revista Brasileira de Reumatologia
https://www.readbyqxmd.com/read/27194832/unmasking-of-complements-using-proteinase-k-in-formalin-fixed-paraffin-embedded-renal-biopsies
#15
R Nada, A Kumar, V G Kumar, K L Gupta, K Joshi
Renal biopsy interpretation requires histopathology, direct immunofluorescence (DIF) and electron microscopy. Formalin-fixed, paraffin-embedded tissue (FFPE) sent for light microscopy can be used for DIF after antigen retrieval. However, complement staining has not been satisfactory. We standardized DIF using proteinase-K for antigen retrieval in FFPE renal biopsies. A pilot study was conducted on known cases of membranous glomerulonephritis (MGN), membranoproliferative type-1 (MPGN-1), immunoglobulin A nephropathy (IgAN), and anti-glomerular basement disease (anti-GBM)...
May 2016: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/27190379/the-natural-history-of-immunoglobulin-m-nephropathy-in-adults
#16
Thomas M Connor, Valeria Aiello, Megan Griffith, Thomas Cairns, Candice A Roufosse, H Terence Cook, Charles D Pusey
Background: Immunoglobulin M (IgM) nephropathy is an idiopathic glomerulonephritis characterized by diffuse mesangial deposition of IgM. IgM nephropathy has been a controversial diagnosis since it was first reported, and there are few data identifying specific pathological features that predict the risk of progression of renal disease. Methods: We identified 57 cases of IgM nephropathy among 3220 adults undergoing renal biopsy at our institution. Biopsies had to satisfy the following three criteria to meet the definition of IgM nephropathy in this study: (i) dominant mesangial staining for IgM, (ii) mesangial deposits on electron microscopy (EM) and (iii) exclusion of systemic disease...
May 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/27148252/the-origin-and-activities-of-iga1-containing-immune-complexes-in-iga-nephropathy
#17
REVIEW
Barbora Knoppova, Colin Reily, Nicolas Maillard, Dana V Rizk, Zina Moldoveanu, Jiri Mestecky, Milan Raska, Matthew B Renfrow, Bruce A Julian, Jan Novak
IgA nephropathy (IgAN) is the most common primary glomerulonephritis, frequently leading to end-stage renal disease, as there is no disease-specific therapy. IgAN is diagnosed from pathological assessment of a renal biopsy specimen based on predominant or codominant IgA-containing immunodeposits, usually with complement C3 co-deposits and with variable presence of IgG and/or IgM. The IgA in these renal deposits is galactose-deficient IgA1, with less than a full complement of galactose residues on the O-glycans in the hinge region of the heavy chains...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27095927/serum-anti-collagen-type-iv-igm-antibodies-and-development-of-diabetic-nephropathy-in-diabetics-with-essential-hypertension
#18
Asparuh Nikolov, Ivan Tsinlikov, Ivanka Tsinlikova, George Nicoloff, Alexander Blazhev, Antoan Garev
INTRODUCTION AND AIMS: Arterial hypertension and diabetic vascular complications are connected with an elevated degradation of elastic tissue. This process leads to an increased production of antibodies to collagen type IV (ACIV Abs). In the present investigation we studied whether the serum levels of antibodies (IgG, IgM and IgA) to collagen are related with microvascular complications. MATERIAL AND METHODS: Serum levels of antibodies to collagen type IV (ACIV) IgG, IgM and IgA were measured using an ELISA method in 93 patients with type 2 diabetes mellitus and arterial hypertension (AH) (mean age 61...
2016: Central-European Journal of Immunology
https://www.readbyqxmd.com/read/27057296/case-report-acute-cerebellar-thrombosis-in-an-adult-patient-with-igm-nephropathy
#19
REVIEW
Abimbola Adike, Mariyam Cherry, Melina Awar
IgM nephropathy is a relatively rare cause of idiopathic nephrotic syndrome.1 It was initially described by van de Putte,2 then by Cohen and Bhasin in 1978, as a distinctive feature of mesangial proliferative glomerulonephritis.2 It is typically characterized by diffuse IgM deposits on the glomeruli and diffuse mesangial hypercellularity. Little is known about the pathogenesis and treatment of this disease.1,3 We describe a patient who presented with nonspecific symptoms of epigastric pain, nausea, and early satiety...
October 2015: Methodist DeBakey Cardiovascular Journal
https://www.readbyqxmd.com/read/27056935/antiphospholipid-antibodies-and-renal-impairment-parameters-in-diabetic-nephropathy-preliminary-data
#20
Mirjana Bećarević, Velibor Čabarkapa, Mirjana Đerić, Svetlana Ignjatović
OBJECTIVE: Antiphospholipid antibodies (aPL Abs) represented an independent factor that was associated with the occurrence and/or progression of nephropathy in patients with antiphospholipid syndrome, but their role in diabetic nephropathy is not elucidated. Therefore, we evaluated the association of aPL Abs with the renal impairment parameters in patients with diabetic nephropathy. METHODS: Concentrations of analyzed antibodies were measured by enzyme-linked immunosorbent assay...
May 2017: Clinical and Applied Thrombosis/hemostasis
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