1131 Significant reno-cardio-metabolic protection by the food additive Flexovital in a murine model combining unilateral nephrectomy and Western diet

Abstract Background and Aims Cardiovascular complications are major threats in advanced renal failure and metabolic dysfunction with several unmet medical needs. This study aimed to investigate the therapeutic effects of a special food additive (FLEXOVITAL) in a newly developed mouse model of reno-cardio-metabolic disease, induced by moderate renal failure in combination with a special Western diet. Method Male C57BL/6J mice (4 weeks old, n = 18) were subject to unilateral nephrectomy (UNX), fed a Western diet rich in fat carbohydrates and salt (WD), and were followed for 12 weeks compared with SHAM-operated mice on standard chow (n = 19). One group of UNX+WD mice (n = 8) was fed a food additive (FLEXOVITAL; FLX) containing extracts of Rhodiola rosea, beetroot, and the amino acids arginine and citrulline. Body weight (BW), blood pressure (tail-cuff), endothelial-dependent vasorelaxation (myograph), glucose metabolism (IPGTT), body fat and lean mass composition (DEXA), adipocyte area, renal function (Glomerular Filtration Rate (GFR) by plasma clearance of FITC-inulin), and mitochondrial function (Oroboros, High-resolution respirometry) were measured together with biochemical analysis of heart injury (Troponin-I), inflammation (IL6) and histological analyses of the kidney and heart. Results BW gain was seen in the UNX+WD and SHAM group, and was 25% less in the FLX group (p