Diabetic nephropathy patients show hyper-responsiveness to N6-carboxymethyllysine

The aim of this study was to evaluate the impact of N6-carboxymethyllysine (CML) on NF-κB gene expression and tumor necrosis factor (TNF) production in diabetic nephropathy. This was an observational study comprised of three groups: diabetic nephropathy (n=30), type II diabetes mellitus (n=28), and...

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Main Authors: C.G. Dias, L. Venkataswamy, S. Balakrishna
Format: Article
Language:English
Published: Associação Brasileira de Divulgação Científica 2022-07-01
Series:Brazilian Journal of Medical and Biological Research
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2022000100648&tlng=en
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author C.G. Dias
L. Venkataswamy
S. Balakrishna
author_facet C.G. Dias
L. Venkataswamy
S. Balakrishna
author_sort C.G. Dias
collection DOAJ
description The aim of this study was to evaluate the impact of N6-carboxymethyllysine (CML) on NF-κB gene expression and tumor necrosis factor (TNF) production in diabetic nephropathy. This was an observational study comprised of three groups: diabetic nephropathy (n=30), type II diabetes mellitus (n=28), and healthy volunteers (n=30). Blood samples collected from the study participants were cultured for 24 h in the presence of CML or an appropriate control. After incubation, the cultures were centrifuged to separate the cells from the conditioned media. cDNA was prepared from the cell pellet and used to quantify NF-κB gene expression by quantitative real-time polymerase chain reaction (PCR). The conditioned media were used to measure TNF production by enzyme-linked immunosorbent assay (ELISA). The CML-induced fold change in NF-κB gene expression was significantly different among the study groups (P=5.4×10-5). Also, the CML-induced fold change in TNF levels was significantly different among the three groups (P=4.3×10-8). These results imply that patients with diabetic nephropathy and type II diabetes mellitus showed an elevated response to CML.
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spelling doaj.art-1621e37982954ced842eabbdcfe990f62022-12-22T03:49:32ZengAssociação Brasileira de Divulgação CientíficaBrazilian Journal of Medical and Biological Research1414-431X2022-07-015510.1590/1414-431x2022e11984Diabetic nephropathy patients show hyper-responsiveness to N6-carboxymethyllysineC.G. Diashttps://orcid.org/0000-0003-2723-4627L. Venkataswamyhttps://orcid.org/0000-0001-5766-3639S. Balakrishnahttps://orcid.org/0000-0002-9734-711XThe aim of this study was to evaluate the impact of N6-carboxymethyllysine (CML) on NF-κB gene expression and tumor necrosis factor (TNF) production in diabetic nephropathy. This was an observational study comprised of three groups: diabetic nephropathy (n=30), type II diabetes mellitus (n=28), and healthy volunteers (n=30). Blood samples collected from the study participants were cultured for 24 h in the presence of CML or an appropriate control. After incubation, the cultures were centrifuged to separate the cells from the conditioned media. cDNA was prepared from the cell pellet and used to quantify NF-κB gene expression by quantitative real-time polymerase chain reaction (PCR). The conditioned media were used to measure TNF production by enzyme-linked immunosorbent assay (ELISA). The CML-induced fold change in NF-κB gene expression was significantly different among the study groups (P=5.4×10-5). Also, the CML-induced fold change in TNF levels was significantly different among the three groups (P=4.3×10-8). These results imply that patients with diabetic nephropathy and type II diabetes mellitus showed an elevated response to CML.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2022000100648&tlng=enDiabetic nephropathyReceptor for advanced glycation end-product pathwayN6-carboxymethyllysineNuclear factor-kappa BTumor necrosis factor
spellingShingle C.G. Dias
L. Venkataswamy
S. Balakrishna
Diabetic nephropathy patients show hyper-responsiveness to N6-carboxymethyllysine
Brazilian Journal of Medical and Biological Research
Diabetic nephropathy
Receptor for advanced glycation end-product pathway
N6-carboxymethyllysine
Nuclear factor-kappa B
Tumor necrosis factor
title Diabetic nephropathy patients show hyper-responsiveness to N6-carboxymethyllysine
title_full Diabetic nephropathy patients show hyper-responsiveness to N6-carboxymethyllysine
title_fullStr Diabetic nephropathy patients show hyper-responsiveness to N6-carboxymethyllysine
title_full_unstemmed Diabetic nephropathy patients show hyper-responsiveness to N6-carboxymethyllysine
title_short Diabetic nephropathy patients show hyper-responsiveness to N6-carboxymethyllysine
title_sort diabetic nephropathy patients show hyper responsiveness to n6 carboxymethyllysine
topic Diabetic nephropathy
Receptor for advanced glycation end-product pathway
N6-carboxymethyllysine
Nuclear factor-kappa B
Tumor necrosis factor
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2022000100648&tlng=en
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