Targeted reduction of advanced glycation improves renal function in obesity

Obesity is highly prevalent in Western populations and is considered a risk factor for the development of renal impairment. Interventions that reduce the tissue burden of advanced glycation end-products (AGEs) have shown promise in stemming the progression of chronic disease. Here we tested if treat...

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Veröffentlicht in:Kidney international 2011-07, Vol.80 (2), p.190-198
Hauptverfasser: Harcourt, Brooke E., Sourris, Karly C., Coughlan, Melinda T., Walker, Karen Z., Dougherty, Sonia L., Andrikopoulos, Sofianos, Morley, Amy L., Thallas-Bonke, Vicki, Chand, Vibhasha, Penfold, Sally A., de Courten, Maximilian P.J., Thomas, Merlin C., Kingwell, Bronwyn A., Bierhaus, Angelika, Cooper, Mark E., Courten, Barbora de, Forbes, Josephine M.
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container_end_page 198
container_issue 2
container_start_page 190
container_title Kidney international
container_volume 80
creator Harcourt, Brooke E.
Sourris, Karly C.
Coughlan, Melinda T.
Walker, Karen Z.
Dougherty, Sonia L.
Andrikopoulos, Sofianos
Morley, Amy L.
Thallas-Bonke, Vicki
Chand, Vibhasha
Penfold, Sally A.
de Courten, Maximilian P.J.
Thomas, Merlin C.
Kingwell, Bronwyn A.
Bierhaus, Angelika
Cooper, Mark E.
Courten, Barbora de
Forbes, Josephine M.
description Obesity is highly prevalent in Western populations and is considered a risk factor for the development of renal impairment. Interventions that reduce the tissue burden of advanced glycation end-products (AGEs) have shown promise in stemming the progression of chronic disease. Here we tested if treatments that lower tissue AGE burden in patients and mice would improve obesity-related renal dysfunction. Overweight and obese individuals (body mass index (BMI) 26–39kg/m2) were recruited to a randomized, crossover clinical trial involving 2 weeks each on a low- and a high-AGE-containing diet. Renal function and an inflammatory profile (monocyte chemoattractant protein-1 (MCP-1) and macrophage migration inhibitory factor (MIF)) were improved following the low-AGE diet. Mechanisms of advanced glycation-related renal damage were investigated in a mouse model of obesity using the AGE-lowering pharmaceutical, alagebrium, and mice in which the receptor for AGE (RAGE) was deleted. Obesity, resulting from a diet high in both fat and AGE, caused renal impairment; however, treatment of the RAGE knockout mice with alagebrium improved urinary albumin excretion, creatinine clearance, the inflammatory profile, and renal oxidative stress. Alagebrium treatment, however, resulted in decreased weight gain and improved glycemic control compared with wild-type mice on a high-fat Western diet. Thus, targeted reduction of the advanced glycation pathway improved renal function in obesity.
doi_str_mv 10.1038/ki.2011.57
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subjects Adolescent
Adult
alagebrium chloride
Animals
Biological and medical sciences
Cross-Over Studies
Diet
Glycation End Products, Advanced - administration & dosage
Glycation End Products, Advanced - adverse effects
Humans
Inflammation - prevention & control
Kidney - drug effects
Kidney - physiopathology
Kidney Diseases - chemically induced
Kidney Diseases - diet therapy
Kidney Diseases - drug therapy
Male
Medical sciences
Metabolic diseases
Mice
Mice, Knockout
Middle Aged
Nephrology. Urinary tract diseases
nephropathy
Obesity
Obesity - diet therapy
Obesity - drug therapy
Obesity - physiopathology
RAGE
Receptor for Advanced Glycation End Products
Receptors, Immunologic - deficiency
Receptors, Immunologic - drug effects
Thiazoles - pharmacology
Thiazoles - therapeutic use
Young Adult
title Targeted reduction of advanced glycation improves renal function in obesity
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