scholarly journals Glomerular diseases in a Hispanic population: review of a regional renal biopsy database

2009 ◽  
Vol 127 (3) ◽  
pp. 140-144 ◽  
Author(s):  
Luis Fernando Arias ◽  
Jorge Henao ◽  
Rubén Darío Giraldo ◽  
Nelson Carvajal ◽  
Joaquin Rodelo ◽  
...  

CONTEXT AND OBJECTIVE: Epidemiological data provide useful information for clinical practice and investigations. This study aimed to determine glomerular disease frequencies in a region of Colombia and it represents the basis for future studies. DESIGN AND SETTING: Single-center retrospective analysis at the University of Antioquia, Colombia. METHODS: All native renal biopsies (July 1998 to December 2007) were reviewed, but only glomerular diseases were analyzed. The diagnosis of each case was based on histological, immunopathological and clinical features. RESULTS: A total of 1,040 biopsies were included. In 302 cases (29.0%), the patient's age was < 15 years. Primary glomerular diseases were diagnosed in 828 biopsies (79.6%) and secondary in 212 (20.4%). The most common primary diseases were focal and segmental glomerulosclerosis (FSGS) (34.8%), immunoglobulin A (IgA) nephropathy (IgAN) (11.8%), membranous glomerulonephritis (MGN) (10.6%), minimal change disease (MCD) (10.6%), crescentic glomerulonephritis (GN) (5.6%), and non-IgA mesangial proliferative GN (5.6%). Postinfectious GN represented 10.7% of the diagnoses if included as primary GN. Lupus nephritis corresponded to 17.8% of the entire series. In adults, the order of the most frequent primary diseases was: FSGS, IgAN, MGN, crescentic GN and MCD. In children (< 15 years), the most frequent were: FSGS, postinfectious GN, MCD, non-IgA mesangial proliferative GN, endocapillary diffuse GN and IgAN. CONCLUSIONS: As among Afro-Americans, FSGS is the most frequent type of glomerulopathy in our population, but in our group, there are more cases of IgAN. The reasons for these findings are unclear. This information is an important contribution towards understanding the prevalence of renal diseases in Latin America.

2019 ◽  
Vol 26 (04) ◽  
Author(s):  
Adil Manzoor ◽  
Imtiaz Bhatt ◽  
Rehan Javed

Objectives: The study is designed to get useful information and epidemiological data for clinical practice and investigations regarding glomerular disease frequencies in Madina region.  Study Design & Setting: Single-center retrospective study at King Fahd Hospital Madina. Period: 01 year (March 2016- March 2017). Methods: All native renal biopsies were studied for the period of 1 year (March 2016- March 2017). Only glomerular disease patterns were analyzed. The diagnosis of each case was based on histological, immunopathological and clinical features. Results: A total of 44 biopsies were Included. Primary glomerular diseases in 52.27% of all biopsies studied. The most common primary disease was Membranous Nephropathy which accounts for 20.45%. Focal and Segmental Glomerulosclerosis (FSGS) (9%), Minimal change disease (4.54%), C3 glomerulopathy  (4.54%), IGA Nephropathy (4.54%), Non-IgA Mesangial Proliferative GN(2.27%), Crescentic Glomerulonephritis (GN) (2.27%), Post lnfectlous GN(2.27%), Thin Basement Membrane Nephropathy(2.27%)  as primary GN. Secondary glomerular diseases in 47.73%. Lupus Nephritis corresponded to 34.09% of the entire series. Conclusions: FSGS has been the most frequent type of glomerulopathy in Saudi Arabian population according to previously available data from local studies but in our study the cases of Membranous Nephropathy were high .Lupus Nephritis remain above the list as a cause of secondary glomerular disease. The reasons for these findings are unclear but this information is an important contribution towards understanding the prevalence of renal diseases In Saudi Arabia.


2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Diego Agra Souza ◽  
Gyl Eanes Barros Silva ◽  
Igor Lima Fernandes ◽  
Dyego José Araújo de Brito ◽  
Monique Pereira Rêgo Muniz ◽  
...  

Objective. To evaluate the prevalence of nondiabetic renal diseases (NDRDs) in renal biopsies of patients with diabetes mellitus (DM) in the University Hospital of Ribeirão Preto, São Paulo. Research Design and Methods. We conducted a retrospective study including kidney biopsies performed in diabetic patients between 1987 and 2013. We evaluated 79 biopsies during this period. The primary variable was the prevalence of NDRD in patients with DM. The secondary variables were the presence of systemic arterial hypertension (SAH), hematuria, time since diagnosis of DM, serum creatinine, and proteinuria levels. The cases were divided into the following groups: isolated diabetic nephropathy (DN—group I), isolated nondiabetic renal diseases (NDRD—group II), associated NDRD/DN (group III), and associated NDRD+NDRD/DN (group IV). Results. Most of the patients (58.22%) presented only alterations arising from DN. NDRDs were present in 41.77% of the patients. Membranous glomerulonephritis (30.3%) and IgA nephropathy (24.24%) were the most prevalent NDRDs. We found no differences between female and male patients with NDRD when assessing the secondary variables. A time since diagnosis of five years or less revealed a statistical difference (p=0.0005) in the comparison between the isolated DN (group I) and the NDRD+NDRD/DN (group IV). The other secondary variables were not significant in the comparison of the groups. Conclusions. We concluded that the prevalence of NDRD is 41.77%. Membranous glomerulonephritis was the most prevalent NDRD in our study. We also conclude that the probability of the presence of NDRD with or without concomitant DN is greater for patients who had biopsies with a time since diagnosis of five years or less. A time since diagnosis of ten years or more does not allow the exclusion of the presence of NDRD.


2019 ◽  
Vol 12 (6) ◽  
pp. 795-800 ◽  
Author(s):  
Corinna M Zink ◽  
Sabine Ernst ◽  
Jochen Riehl ◽  
Udo Helmchen ◽  
Hermann-Josef Gröne ◽  
...  

Abstract Background Several renal biopsy registries in Europe have shown geographical and temporal variations in the patterns of renal diseases. However, there is a lack of current data on trends of renal disease in Central Europe. Methods After exclusion of transplant and re-biopsies, the renal biopsy registry of the German RWTH Aachen University Hospital included data of 1208 biopsies over a period of 24 years (1990–2013). Trends in the biopsy rate and diagnosis of glomerular diseases were analysed. Results The average annual biopsy incidence was 6.1 biopsies per 100 000 population. The frequency of kidney biopsies increased significantly over the years (P &lt; 0.001). Primary glomerulonephritis (GN) accounted for nearly two-thirds (58.4%) of all native kidney biopsies, and immunoglobulin A-nephropathy (IgAN) was the leading histological diagnosis (34.7%) followed by necrotizing GN (RPGN) at 18.7%. IgAN increased 2-fold over the study periods (+195%, P &lt; 0.001). Focal segmental glomerulosclerosis accounted for 6.1% of all diagnoses, and its frequency rose to 3.9-fold (+388%, P &lt; 0.001). Lupus nephritis showed a doubling in incidence (P = 0.0499), while acute tubular necrosis decreased to 3.5-fold (P = 0.0008). All other disease entities failed to exhibit linear trends over time. In children, the most common pathologies were IgAN (26.1%) and minimal change disease (21.7%), whereas RPGN (19.4%) dominated in the group of patients &gt;60 years. Conclusion IgAN was the most common primary glomerular disease in our centre and its prevalence increased over 24 years.


2017 ◽  
Author(s):  
Richard J. Glassock ◽  
Sanjeev Sethi ◽  
Fernando C. Fervenza

Glomerular disorders in which the manifestations of disease are primarily confined to the kidneys, without multisystem involvement, are not only common but very heterogeneous in terms of pathogenesis and clinical features. Typically, these primary glomerular diseases are characterized according to the findings on renal biopsy, as studied by light, immunofluorescence, and electron microscopy. The principal primary glomerular diseases are minimal change disease, focal and segmental glomerulosclerosis, membranous nephropathy, C3 glomerulonephritis and dense deposit disease, IgA nephropathy, and renal-limited crescentic glomerulonephritis. These clinicopathologic entities are discussed according to epidemiology, clinical features, pathology, pathogenesis (and genetics if appropriate), prognosis, and treatment, emphasizing recent findings.  Key words: C3 glomerulonephritis, dense deposit disease, focal and segmental glomerulosclerosis, glomerulonephritis, IgA nephropathy, membranous nephropathy, minimal change disease, renal biopsy, renal-limited crescentic glomerulonephritis


2013 ◽  
Vol 70 (12) ◽  
pp. 1085-1090
Author(s):  
Nikola Stankovic ◽  
Predrag Vlahovic ◽  
Vojin Savic

Background/Aim. Epidemiological studies of renal biopsies have been performed to follow up the incidence of glomerular diseases on a specified territory and to compare the obtained results with results from other regions. The aim of this study was to analyze the frequency of certain histopathophysiological types of glomerular diseases on the territory of Southeast Serbia. Methods. In a 20-year period (1986-2006), 316 kidney biopsies were performed in patients with clinicall signs of impaired renal function, in Southeast Serbia. On average 1.6 biopsies were made per year per 100 000 inhabitants. Results. Biopsies of adult patients represented 88% of all biopsies, biopsies in children (aged under 18 years) represented 8%, while biopsies of elderly patients (more than 60 years) represented 4% of all biopsies. The predominance of male patients was described with male/female ratio of 1.4. The most frequent clinical manifestation in patients at the time of biopsy were nephrotic syndrome (42.5%), and asymptomatic proteinuria and/or hematuria (31.3%) and nephritic syndrome (14.9%). The most common glomerular disease was IgA nephropathy with an incidence of 21.5% of total biopsy diagnosed glomerulopathies, followed by: membranous glomerulonephritis (12.6%), focal segmental proliferative and sclerosing glomerulonephritis (10.7%), lupus nephritis (8.4%), nephroangiosclerosis (7.0%), mesangio-proliferative glomerulonephritis (6.1%), minimal change disease (2.8%), mesangiocapillary glomerulonephritis (2.3%). Conclusion. The frequency of certain histopathologic findings significantly correlated with data from studies that we used for comparison, with the exception of minimal change disease whose incidence in our study was smaller.


2021 ◽  
Author(s):  
Li-Jun Jiang ◽  
Xue Zhao ◽  
Zhi-Yan Dou ◽  
Zan-Hua Rong ◽  
Lin Yang

Abstract Background: This study aimed to investigate the clinical and pathological characteristics and the profile of and temporal changes in glomerular diseases in 2403 paediatric renal biopsies from 1999 to 2019.Methods: Renal biopsies performed on children aged ≤18 years between 1999 and 2019 were analysed at our centre. We analysed the clinical and histological characteristics, distribution of paediatric renal diseases with various clinical presentations, and changes in the pattern of kidney disease during the study period.Results: The most common primary glomerular disease was IgA nephropathy (IgAN) (24.3%), followed by minimal change disease (MCD) (15.3%) and membranous glomerulonephritis (MN) (13.1%). Henoch-Schonlein purpura nephritis (HSPN) (18.1%) and lupus nephritis (LN) (7.2%) were the most frequently recorded secondary glomerular diseases. Alport syndrome and thin basement membrane nephropathy (TBMN) were the most common inherited glomerular diseases, accounting for 1.2% and 0.6% of the total glomerular diseases in children, respectively. The number of boys with IgAN, MCD and IgM nephropathy (IgMN) was significantly higher than that of girls, while the number of girls with MN and LN was significantly higher than that of boys. The frequencies of MCD, MN, IgMN and endocapillary proliferative glomerulonephritis (EnPGN) in the 13-18-year-old group were significantly higher than those in the 0-12-year-old group, while the frequencies of IgAN, mesangial proliferative glomerulonephritis (MsPGN) and focal proliferative glomerulonephritis (FPGN) were lower than those in the 0-12-year-old group. The ratio of Alport syndrome and TBMN in the 0-12-year-old group was significantly higher than that in the 13-18-year-old group. The proportion of patients with MCD and MN in 2010-2019 was significantly higher than that in 1999-2009, while the ratio of IgAN, MsPGN, IgMN, EnPGN, membranoproliferative glomerulonephritis (MPGN), HSPN and HBV-associated glomerulonephritis (HBV-GN) decreased. MCD (28.5%) was the most common cause of nephrotic syndrome (NS). In children with haematuria and proteinuria, HSPN (38.8%) and IgAN (36.9%) were more common than other glomerular diseases. IgAN (39.4%) was the most common cause of AKI. Sclerosing glomerulonephritis (SGN) (21.1%) was the main cause of progressive chronic kidney disease (CKD).Conclusions: Glomerular diseases in children were related to sex and age. From 1999 to 2019, the spectrum of children's kidney disease in our centre changed significantly.


Author(s):  
Analia Lorena Tomat ◽  
Francisco Javier Salazar

AbstractA substantial body of epidemiological and experimental evidence suggests that a poor fetal and neonatal environment may “program” susceptibility in the offspring to later development of cardiovascular, renal and metabolic diseases.This review focuses on current knowledge from the available literature regarding the mechanisms linking an adverse developmental environment with an increased risk for cardiovascular, renal and metabolic diseases in adult life. Moreover, this review highlights important sex-dependent differences in the adaptation to developmental insults.Developmental programming of several diseases is secondary to changes in different mechanisms inducing important alterations in the normal development of several organs that lead to significant changes in birth weight. The different diseases occurring as a consequence of an adverse environment during development are secondary to morphological and functional cardiovascular and renal changes, to epigenetic changes and to an activation of several hormonal and regulatory systems, such as angiotensin II, sympathetic activity, nitric oxide, COX2-derived metabolites, oxidative stress and inflammation. The important sex-dependent differences in the developmental programming of diseases seem to be partly secondary to the effects of sex hormones. Recent studies have shown that the progression of these diseases is accelerated during aging in both sexes.The cardiovascular, renal and metabolic diseases during adult life that occur as a consequence of several insults during fetal and postnatal periods are secondary to multiple structural and functional changes. Future studies are needed in order to prevent the origin and reduce the incidence and consequences of developmental programmed diseases.


2021 ◽  
Vol 8 ◽  
Author(s):  
Jianwen Yu ◽  
Danli Xie ◽  
Naya Huang ◽  
Qin Zhou

Circular RNAs (circRNAs) are a novel type of non-coding RNAs that have aroused growing attention in this decade. They are widely expressed in eukaryotes and generally have high stability owing to their special closed-loop structure. Many circRNAs are abundant, evolutionarily conserved, and exhibit cell-type-specific and tissue-specific expression patterns. Mounting evidence suggests that circRNAs have regulatory potency for gene expression by acting as microRNA sponges, interacting with proteins, regulating transcription, or directly undergoing translation. Dysregulated expression of circRNAs were found in many pathological conditions and contribute to the pathogenesis and progression of various disorders, including renal diseases. Recent studies have revealed that circRNAs may serve as novel reliable biomarkers for the diagnosis and prognosis prediction of multiple kidney diseases, such as renal cell carcinoma (RCC), acute kidney injury (AKI), diabetic kidney disease (DKD), and other glomerular diseases. Furthermore, circRNAs expressed by intrinsic kidney cells are shown to play a substantial role in kidney injury, mostly reported in DKD and RCC. Herein, we review the biogenesis and biological functions of circRNAs, and summarize their roles as promising biomarkers and therapeutic targets in common kidney diseases.


2021 ◽  
Vol 135 (17) ◽  
pp. 2165-2196
Author(s):  
Erika I. Boesen ◽  
Rahul M. Kakalij

Abstract Hypertension is a major risk factor for cardiovascular disease, chronic kidney disease (CKD), and mortality. Troublingly, hypertension is highly prevalent in patients with autoimmune renal disease and hastens renal functional decline. Although progress has been made over the past two decades in understanding the inflammatory contributions to essential hypertension more broadly, the mechanisms active in autoimmune-mediated renal diseases remain grossly understudied. This Review provides an overview of the pathogenesis of each of the major autoimmune diseases affecting the kidney that are associated with hypertension, and describes the current state of knowledge regarding hypertension in these diseases and their management. Specifically, discussion focuses on Systemic Lupus Erythematosus (SLE) and Lupus Nephritis (LN), Immunoglobulin A (IgA) Nephropathy, Idiopathic Membranous Nephropathy (IMN), Anti-Neutrophil Cytoplasmic Antibody (ANCA)-associated glomerulonephritis, and Thrombotic Thrombocytopenic Purpura (TTP). A summary of disease-specific animal models found to exhibit hypertension is also included to highlight opportunities for much needed further investigation of underlying mechanisms and novel therapeutic approaches.


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