Cafeteria Diet-Induced Obesity Worsens Experimental CKD

Obesity is a significant risk factor for chronic kidney disease (CKD). This study aimed to evaluate the impact of obesity on the development of kidney fibrosis in a model of cafeteria diet rats undergoing 5/6th nephrectomy (SNx). Collagen 1, 3, and 4 expression, adipocyte size, macrophage number, an...

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Main Authors: Jonas Laget, Irene Cortijo, Juliana H. Boukhaled, Karen Muyor, Flore Duranton, Bernard Jover, Fabrice Raynaud, Anne-Dominique Lajoix, Àngel Argilés, Nathalie Gayrard
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Nutrients
Subjects:
Online Access:https://www.mdpi.com/2072-6643/15/15/3331
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author Jonas Laget
Irene Cortijo
Juliana H. Boukhaled
Karen Muyor
Flore Duranton
Bernard Jover
Fabrice Raynaud
Anne-Dominique Lajoix
Àngel Argilés
Nathalie Gayrard
author_facet Jonas Laget
Irene Cortijo
Juliana H. Boukhaled
Karen Muyor
Flore Duranton
Bernard Jover
Fabrice Raynaud
Anne-Dominique Lajoix
Àngel Argilés
Nathalie Gayrard
author_sort Jonas Laget
collection DOAJ
description Obesity is a significant risk factor for chronic kidney disease (CKD). This study aimed to evaluate the impact of obesity on the development of kidney fibrosis in a model of cafeteria diet rats undergoing 5/6th nephrectomy (SNx). Collagen 1, 3, and 4 expression, adipocyte size, macrophage number, and the expression of 30 adipokines were determined. Collagen 1 expression in kidney tissue was increased in Standard-SNx and Cafeteria-SNx (7.1 ± 0.6% and 8.9 ± 0.9 tissue area, respectively). Renal expression of collagen 3 and 4 was significantly increased (<i>p</i> < 0.05) in Cafeteria-SNx (8.6 ± 1.5 and 10.9 ± 1.9% tissue area, respectively) compared to Cafeteria (5.2 ± 0.5 and 6.3 ± 0.6% tissue area, respectively). Adipocyte size in eWAT was significantly increased by the cafeteria diet. In Cafeteria-SNx, we observed a significant increase in macrophage number in the kidney (<i>p</i> = 0.01) and a consistent tendency in eWAT. The adipokine level was higher in the Cafeteria groups. Interleukin 11, dipeptidyl peptidase 4, and serpin 1 were increased in Cafeteria-SNx. In the kidney, collagen 3 and 4 expressions and the number of macrophages were increased in Cafeteria-SNx, suggesting an exacerbation by preexisting obesity of CKD-induced renal inflammation and fibrosis. IL11, DPP4, and serpin 1 can act directly on fibrosis and participate in the observed worsening CKD.
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spelling doaj.art-1a445c347ec849d8a3b9f6c4ec2c9cbf2023-11-18T23:23:06ZengMDPI AGNutrients2072-66432023-07-011515333110.3390/nu15153331Cafeteria Diet-Induced Obesity Worsens Experimental CKDJonas Laget0Irene Cortijo1Juliana H. Boukhaled2Karen Muyor3Flore Duranton4Bernard Jover5Fabrice Raynaud6Anne-Dominique Lajoix7Àngel Argilés8Nathalie Gayrard9RD-Néphrologie, 34090 Montpellier, FranceRD-Néphrologie, 34090 Montpellier, FranceRD-Néphrologie, 34090 Montpellier, FranceRD-Néphrologie, 34090 Montpellier, FranceRD-Néphrologie, 34090 Montpellier, FranceRD-Néphrologie, 34090 Montpellier, FrancePhyMedExp, INSERM, CNRS, Université de Montpellier, 34090 Montpellier, FranceBiocommunication in Cardio-Metabolism (BC2M), University of Montpellier, 34090 Montpellier, FranceRD-Néphrologie, 34090 Montpellier, FranceRD-Néphrologie, 34090 Montpellier, FranceObesity is a significant risk factor for chronic kidney disease (CKD). This study aimed to evaluate the impact of obesity on the development of kidney fibrosis in a model of cafeteria diet rats undergoing 5/6th nephrectomy (SNx). Collagen 1, 3, and 4 expression, adipocyte size, macrophage number, and the expression of 30 adipokines were determined. Collagen 1 expression in kidney tissue was increased in Standard-SNx and Cafeteria-SNx (7.1 ± 0.6% and 8.9 ± 0.9 tissue area, respectively). Renal expression of collagen 3 and 4 was significantly increased (<i>p</i> < 0.05) in Cafeteria-SNx (8.6 ± 1.5 and 10.9 ± 1.9% tissue area, respectively) compared to Cafeteria (5.2 ± 0.5 and 6.3 ± 0.6% tissue area, respectively). Adipocyte size in eWAT was significantly increased by the cafeteria diet. In Cafeteria-SNx, we observed a significant increase in macrophage number in the kidney (<i>p</i> = 0.01) and a consistent tendency in eWAT. The adipokine level was higher in the Cafeteria groups. Interleukin 11, dipeptidyl peptidase 4, and serpin 1 were increased in Cafeteria-SNx. In the kidney, collagen 3 and 4 expressions and the number of macrophages were increased in Cafeteria-SNx, suggesting an exacerbation by preexisting obesity of CKD-induced renal inflammation and fibrosis. IL11, DPP4, and serpin 1 can act directly on fibrosis and participate in the observed worsening CKD.https://www.mdpi.com/2072-6643/15/15/3331chronic kidney diseaseobesityadipokinefibrosiscollagenmacrophage
spellingShingle Jonas Laget
Irene Cortijo
Juliana H. Boukhaled
Karen Muyor
Flore Duranton
Bernard Jover
Fabrice Raynaud
Anne-Dominique Lajoix
Àngel Argilés
Nathalie Gayrard
Cafeteria Diet-Induced Obesity Worsens Experimental CKD
Nutrients
chronic kidney disease
obesity
adipokine
fibrosis
collagen
macrophage
title Cafeteria Diet-Induced Obesity Worsens Experimental CKD
title_full Cafeteria Diet-Induced Obesity Worsens Experimental CKD
title_fullStr Cafeteria Diet-Induced Obesity Worsens Experimental CKD
title_full_unstemmed Cafeteria Diet-Induced Obesity Worsens Experimental CKD
title_short Cafeteria Diet-Induced Obesity Worsens Experimental CKD
title_sort cafeteria diet induced obesity worsens experimental ckd
topic chronic kidney disease
obesity
adipokine
fibrosis
collagen
macrophage
url https://www.mdpi.com/2072-6643/15/15/3331
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