Fructose intake: is there an association with uric acid levels in nondialysis-dependent chronic kidney disease patients?

卷:31

Vieira, Fernanda Oliveira ; Leal, Viviane de Oliveira ; Stockier-Pinto, Milena Barcza ; Barros, Amanda de Faria ; Borges, Natalia Alvarenga ; Lobo, Julie Calixto ; Mafrao, Denise

Rua Farmaceut Deodoro Pinto

关键词: Chronic kidney disease;    Uric acid;    Fructose;    Inflammation;    Cardiovascular disease;   

DOI  :  10.3305/nh.2015.31.2.7796

学科分类：食品科学和技术

【 摘 要 】

Introduction: Fructose intake has increased dramatically in consequence of the consumption of fructose-based sweetened foods and beverages. Research suggests that high fructose intake has a strong association with uric acid (UA) levels and worse prognosis of chronic kidney disease (CKD). Objective: The aim of this study was to investigate the influence of fructose intake on plasma UA levels in nondialysis-dependent CKD patients. Methods: Fifty-two patients on stages 3-5 (64.2 +/- 9.6 years, 24 men, glomerular filtration rate of 30.5 +/- 10.3ml/min) were divided into two groups: high fructose intake (>50g/d, n=29, 61.7 +/- 9.3years) and low fructose intake (<50g/d, n=23, 65.8 +/- 9.7years). Blood samples were collected to determine lipid profile and plasma levels of UA, inflammatory (interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-alpha), C-reactive protein (CRP)) and cardiovascular markers (monocyte chemotactic protein-1 (MCP-1), intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1)). The energy, protein and fructose intake was estimated using 3-day 24-hour food recall. Results: High fructose intake was observed in 55.8% of patients and the mean UA levels were 7.7 +/- 1.3 and 6.2 +/- 1.6mg/dl in patients with high and low fructose intake, respectively (p<0.05). According to the regression analysis, fructose intake was the only variable able to affect the AU levels (beta=0.42, p=0.016) after adjustment for gender, BMI, energy and protein intake, cardiovascular markers and lipid profile. Conclusions: These findings support a potential role for fructose in hyperuricemia in these patients.