Oyster peptides were produced from Crassostrea hongkongensis and used as a new protein source for the preparation of an oyster peptide-based enteral nutrition formula (OPENF). Reserpine-induced malabsorption mice and ...Oyster peptides were produced from Crassostrea hongkongensis and used as a new protein source for the preparation of an oyster peptide-based enteral nutrition formula (OPENF). Reserpine-induced malabsorption mice and cyclophosphamide-induced immunosuppression mice were used in this study. OPENF powder is light yellow green and has a protein-fat-carbohydrate ratio of 16:9:75 with good solubility in water. A pilot study investigating immune functional impacts of the OPENF on mice show that the OPENF enhanced spleen lymphocyte proliferation and the activity of natural killer (NK) cells in BALB/c mice. Furthermore, OPENF can improve intestinal absorption, increase food utilization ratio, and maintain the normal physiological function of mice. These results suggest that oyster peptides could serve as a new protein source for use in enteral nutrition formula, but more importantly, also indicate that OPENF has an immunostimulating effect in mice.展开更多
The effects of enteral nutrition containing long chain triglycerides （LCT） and medium chain triglycerides （MCT） or L-arginine （Arg） on fat absorbability, serum free fatty acid profiles and intestinal morphology ...The effects of enteral nutrition containing long chain triglycerides （LCT） and medium chain triglycerides （MCT） or L-arginine （Arg） on fat absorbability, serum free fatty acid profiles and intestinal morphology in rats with short-bowel syndrome （SBS） were studied using gas chromatography. Twenty-eight Sprague-Dawley rats were randomly assigned to 4 groups： sham operation fed with LCT as control; 85% small bowel resection fed with LCT, MCT/LCT, and Arg/LCT, respectively. SBS rats showed a decrease of fat absorptivity. Enteral nutrition supplemented with MCT could increase fat absorptivity. L-Arginine enhanced enteral nutrition was associated with the elevation of fat absorptivity, possibly due to its enterotrophic effect on remnant small bowel mucosa. LCT group showed a significant deficiency of total free fatty acid and the decreased essential fatty acid content, which was improved in other two SBS groups.展开更多
基金Supported by the Knowledge Innovation Program of Chinese Academyof Sciences (No.KZCX2-EW-Q214)the Comprehensive Strategic Cooperation Programs between Guangdong Province and Chinese Academy of Sciences (Nos.2011A090100008,2009B091300018,2010B090300027)the Marine Fisheries Technology Promotion Special Program of Guangdong Province (No.A2009009-035(a))
文摘Oyster peptides were produced from Crassostrea hongkongensis and used as a new protein source for the preparation of an oyster peptide-based enteral nutrition formula (OPENF). Reserpine-induced malabsorption mice and cyclophosphamide-induced immunosuppression mice were used in this study. OPENF powder is light yellow green and has a protein-fat-carbohydrate ratio of 16:9:75 with good solubility in water. A pilot study investigating immune functional impacts of the OPENF on mice show that the OPENF enhanced spleen lymphocyte proliferation and the activity of natural killer (NK) cells in BALB/c mice. Furthermore, OPENF can improve intestinal absorption, increase food utilization ratio, and maintain the normal physiological function of mice. These results suggest that oyster peptides could serve as a new protein source for use in enteral nutrition formula, but more importantly, also indicate that OPENF has an immunostimulating effect in mice.
基金Project supported by the National Science Fundation for Distinguished Young Scholars （No. 20325518） and Creative Research Groups （No. 20521503）, the Key （No. 20535010） and General Programs （No. 20275017） from the National Natural Science Foundation of China.
文摘The effects of enteral nutrition containing long chain triglycerides （LCT） and medium chain triglycerides （MCT） or L-arginine （Arg） on fat absorbability, serum free fatty acid profiles and intestinal morphology in rats with short-bowel syndrome （SBS） were studied using gas chromatography. Twenty-eight Sprague-Dawley rats were randomly assigned to 4 groups： sham operation fed with LCT as control; 85% small bowel resection fed with LCT, MCT/LCT, and Arg/LCT, respectively. SBS rats showed a decrease of fat absorptivity. Enteral nutrition supplemented with MCT could increase fat absorptivity. L-Arginine enhanced enteral nutrition was associated with the elevation of fat absorptivity, possibly due to its enterotrophic effect on remnant small bowel mucosa. LCT group showed a significant deficiency of total free fatty acid and the decreased essential fatty acid content, which was improved in other two SBS groups.
