BACKGROUND: Monocyte chemoattractant protein-1 (MCP-1) is involved in obesity-related renal injury. The aim of the present study was to examine the effects of weight loss on changes in MCP-1 and markers of renal injury, specifically serum cystatin C (S-CysC) and urinary N-acetyl glucosaminidase (UNAG), in obese people. METHODS: In this prospective study, 40 obese men with metabolic syndrome (MetS) participated in a 3-month dietary and exercise intervention. Twenty-eight subjects completed the study with a ≥5% weight loss. Circulating MCP-1, S-CysC and UNAG to creatinine ratio (UNCR) were determined before and after the weight loss program. RESULTS: Obesity-associated components of MetS demonstrated significant improvements after the weight loss program. In addition, at baseline, circulating MCP-1 concentrations were positively correlated with UNCR and S-CysC levels. After weight loss, blood MCP-1 and UNCR levels were significantly decreased, but S-CysC was not affected. Using multiple linear regression analysis, there was a significant relationship between changes in UNCR and MCP-1 after adjusting for other potential confounding factors. CONCLUSIONS: Weight loss may improve renal tubular injury by ameliorating obesity-related inflammation in obese men with MetS.
BACKGROUND:Monocyte chemoattractant protein-1 (MCP-1) is involved in obesity-related renal injury. The aim of the present study was to examine the effects of weight loss on changes in MCP-1 and markers of renal injury, specifically serum cystatin C (S-CysC) and urinary N-acetyl glucosaminidase (UNAG), in obese people. METHODS: In this prospective study, 40 obesemen with metabolic syndrome (MetS) participated in a 3-month dietary and exercise intervention. Twenty-eight subjects completed the study with a ≥5% weight loss. Circulating MCP-1, S-CysC and UNAG to creatinine ratio (UNCR) were determined before and after the weight loss program. RESULTS:Obesity-associated components of MetS demonstrated significant improvements after the weight loss program. In addition, at baseline, circulating MCP-1 concentrations were positively correlated with UNCR and S-CysC levels. After weight loss, blood MCP-1 and UNCR levels were significantly decreased, but S-CysC was not affected. Using multiple linear regression analysis, there was a significant relationship between changes in UNCR and MCP-1 after adjusting for other potential confounding factors. CONCLUSIONS:Weight loss may improve renal tubular injury by ameliorating obesity-related inflammation in obesemen with MetS.
Authors: Margalida Monserrat-Mesquida; Magdalena Quetglas-Llabrés; Cristina Bouzas; Silvia García; David Mateos; Cristina Gómez; José M Gámez; Henrik E Poulsen; Josep A Tur; Antoni Sureda Journal: Antioxidants (Basel) Date: 2022-07-05