Impact of body mass index on progression of primary immunoglobulin a nephropathy

The role of obesity in the progression of primary glomerular diseases is controversial. A few studies report overweight/obesity as a risk factor for disease progression in immunoglobulin A nephropathy (IgAN), and the real impact of it still remains unclear. The aim of this study was to elucidate the...

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Main Authors: Shankar Prasad Nagaraju, Dharshan Rangaswamy, Aswani Srinivas Mareddy, Srikanth Prasad, Sindhu Kaza, Srinivas Shenoy, Karan Saraf, Ravindra Prabhu Attur, Rajeevalochana Parthasarathy, Srinivas Kosuru, Uday Venkat Mateti, Vasudeva Guddattu, Sindhura Lakshmi Koulmane Laxminarayana
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2018-01-01
Series:Saudi Journal of Kidney Diseases and Transplantation
Online Access:http://www.sjkdt.org/article.asp?issn=1319-2442;year=2018;volume=29;issue=2;spage=318;epage=325;aulast=Nagaraju
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author Shankar Prasad Nagaraju
Dharshan Rangaswamy
Aswani Srinivas Mareddy
Srikanth Prasad
Sindhu Kaza
Srinivas Shenoy
Karan Saraf
Ravindra Prabhu Attur
Rajeevalochana Parthasarathy
Srinivas Kosuru
Uday Venkat Mateti
Vasudeva Guddattu
Sindhura Lakshmi Koulmane Laxminarayana
author_facet Shankar Prasad Nagaraju
Dharshan Rangaswamy
Aswani Srinivas Mareddy
Srikanth Prasad
Sindhu Kaza
Srinivas Shenoy
Karan Saraf
Ravindra Prabhu Attur
Rajeevalochana Parthasarathy
Srinivas Kosuru
Uday Venkat Mateti
Vasudeva Guddattu
Sindhura Lakshmi Koulmane Laxminarayana
author_sort Shankar Prasad Nagaraju
collection DOAJ
description The role of obesity in the progression of primary glomerular diseases is controversial. A few studies report overweight/obesity as a risk factor for disease progression in immunoglobulin A nephropathy (IgAN), and the real impact of it still remains unclear. The aim of this study was to elucidate the effect of body mass index (BMI) on disease progression and proteinuria in patients with IgAN in Indian population. A cohort of biopsy-proven primary IgAN patients diagnosed between March 2010 and February 2015 who had a follow-up for a minimum of 12 months were included in the study. We defined two groups of patients according to the BMI value at diagnosis: non-obese group (Group N) with BMI <23 Kg/m2 and the overweight/obese group (Group O) with BMI >23 Kg/m2 as per Asia-Pacific task force criteria. Baseline characteristics were compared between the groups. The estimated glomerular filtration rate (eGFR) and urine protein-creatinine ratio (UPCR) were followed up at entry time, 6 months, 12 months, and at the end of follow-up. Outcomes studied were change in eGFR, proteinuria, and progression to end-stage renal disease. Statistical analysis was done using the Statistical Package for the Social Sciences version 15.0. Of 51 patients, 25 (49%) had BMI <23 kg/m2 (Group N) and 26 (51%) had BMI >23 kg/m2 (Group O) (P = 0.01). The baseline clinical, histopathological, and treatment characteristics of both the groups were comparable. The BMI at the time of diagnosis did not have any significant effect on eGFR (P = 0.41) or proteinuria (P = 0.99) at presentation. At the end of follow-up, both the groups had a similar reduction of proteinuria (UPCR) (P = 0.46) and eGFR (P = 0.20). Two patients in each group have reached chronic kidney disease Stage 5. In the present study, BMI at presentation did not have any impact on eGFR or proteinuria, either at diagnosis or at follow-up. It needs further large multicenter randomized control studies to see the effect of BMI on progression of IgAN.
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spelling doaj.art-7ad763ffe17b4ae98397697993146cd72022-12-21T19:30:48ZengWolters Kluwer Medknow PublicationsSaudi Journal of Kidney Diseases and Transplantation1319-24422018-01-0129231832510.4103/1319-2442.229261Impact of body mass index on progression of primary immunoglobulin a nephropathyShankar Prasad NagarajuDharshan RangaswamyAswani Srinivas MareddySrikanth PrasadSindhu KazaSrinivas ShenoyKaran SarafRavindra Prabhu AtturRajeevalochana ParthasarathySrinivas KosuruUday Venkat MatetiVasudeva GuddattuSindhura Lakshmi Koulmane LaxminarayanaThe role of obesity in the progression of primary glomerular diseases is controversial. A few studies report overweight/obesity as a risk factor for disease progression in immunoglobulin A nephropathy (IgAN), and the real impact of it still remains unclear. The aim of this study was to elucidate the effect of body mass index (BMI) on disease progression and proteinuria in patients with IgAN in Indian population. A cohort of biopsy-proven primary IgAN patients diagnosed between March 2010 and February 2015 who had a follow-up for a minimum of 12 months were included in the study. We defined two groups of patients according to the BMI value at diagnosis: non-obese group (Group N) with BMI <23 Kg/m2 and the overweight/obese group (Group O) with BMI >23 Kg/m2 as per Asia-Pacific task force criteria. Baseline characteristics were compared between the groups. The estimated glomerular filtration rate (eGFR) and urine protein-creatinine ratio (UPCR) were followed up at entry time, 6 months, 12 months, and at the end of follow-up. Outcomes studied were change in eGFR, proteinuria, and progression to end-stage renal disease. Statistical analysis was done using the Statistical Package for the Social Sciences version 15.0. Of 51 patients, 25 (49%) had BMI <23 kg/m2 (Group N) and 26 (51%) had BMI >23 kg/m2 (Group O) (P = 0.01). The baseline clinical, histopathological, and treatment characteristics of both the groups were comparable. The BMI at the time of diagnosis did not have any significant effect on eGFR (P = 0.41) or proteinuria (P = 0.99) at presentation. At the end of follow-up, both the groups had a similar reduction of proteinuria (UPCR) (P = 0.46) and eGFR (P = 0.20). Two patients in each group have reached chronic kidney disease Stage 5. In the present study, BMI at presentation did not have any impact on eGFR or proteinuria, either at diagnosis or at follow-up. It needs further large multicenter randomized control studies to see the effect of BMI on progression of IgAN.http://www.sjkdt.org/article.asp?issn=1319-2442;year=2018;volume=29;issue=2;spage=318;epage=325;aulast=Nagaraju
spellingShingle Shankar Prasad Nagaraju
Dharshan Rangaswamy
Aswani Srinivas Mareddy
Srikanth Prasad
Sindhu Kaza
Srinivas Shenoy
Karan Saraf
Ravindra Prabhu Attur
Rajeevalochana Parthasarathy
Srinivas Kosuru
Uday Venkat Mateti
Vasudeva Guddattu
Sindhura Lakshmi Koulmane Laxminarayana
Impact of body mass index on progression of primary immunoglobulin a nephropathy
Saudi Journal of Kidney Diseases and Transplantation
title Impact of body mass index on progression of primary immunoglobulin a nephropathy
title_full Impact of body mass index on progression of primary immunoglobulin a nephropathy
title_fullStr Impact of body mass index on progression of primary immunoglobulin a nephropathy
title_full_unstemmed Impact of body mass index on progression of primary immunoglobulin a nephropathy
title_short Impact of body mass index on progression of primary immunoglobulin a nephropathy
title_sort impact of body mass index on progression of primary immunoglobulin a nephropathy
url http://www.sjkdt.org/article.asp?issn=1319-2442;year=2018;volume=29;issue=2;spage=318;epage=325;aulast=Nagaraju
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