Rice bran has been reported to inhibit pancreatic lipase activity in vitro. This action shows that administration of rice bran may result in a decrease in plasma triglyceride levels and suppress accumulation of fat in vivo. We administered water extract of defatted rice bran (WED-rice bran) to rats to determine its effects. Single administration of WED-rice bran at a dose of 1 g/kg body weight caused a decrease in plasma triglyceride levels in fat emulsion induced hypertriglyceridemic rats. Four week administration of WED-rice bran suppressed accumulation of visceral fat and body weight gain without influencing food consumption, liver function, and renal function. These results indicate that a reduction of plasma triglycerides and suppression of visceral fat accumulation may be induced by pancreatic lipase inhibition caused by administration of WED-rice bran.
Introduction: Though micronutrient formulations for parenteral nutrition (PN) have been revised, the impacts of these changes on nutritional parameters, blood micronutrient levels, and safety have yet to be clarified. We examined the efficacy and safety of a new PN formulation with a micronutrient composition based on the Food and Drug Administration 2000 recommendation in surgical patients. Methods: This phase III clinical trial (JapicCTI-No. 142610) was a prospective, randomized, controlled, parallel-group, open-label, multicenter study. Two types of PN, OPF-108 (revised formula, n = 51) and ELN (previous formula mainly based on American Medical Association 1975 guidelines, n = 59), were given to patients from POD1 or 2 to POD7 after surgery. OPF-108 contains more vitamin B1, B6, C, and folic acid, a much lower dose of vitamin K, and less iron than ELN. Nutritional parameters and micronutrient profiles in blood and safety were evaluated. Results: Nutritional parameters on POD5 and 8 were similar between the 2 groups. Blood vitamin B1, B6, and folic acid levels on POD 5 and 8 were higher in the OPF-108 group than in the ELN group. Only OPF-108 restored vitamin C levels to within the normal range on POD5 and 8. Vitamin K levels far exceeded the upper limit of the standard range on POD5 and 8 in the ELN group, whereas OPF-108 essentially maintained these levels within the standard ranges. Serum iron levels on POD8 were nearly normal in both the OPF-108 and ELN groups. Conclusion: Beneficial effects of the new micronutrient formulation were demonstrated in surgical patients.
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