The Influence Of Aerobic Exercise On Mouse’s Bone Which Were Fed With Phytase Maize

Research purposes: because of phytase transgenic corn itself can be phytate hydrolysis metabolism can not be directly hydrolyzed corn for the use of phytase transgenic corn in phosphorus content will increase the consumption of animal, calcium and phosphorus ratio to the need to maintain the effective absorption to bones and teeth in the body, so the purpose of this study is to explore when eating phytase transgenic corn, mouse skeletal will produce what kind of change, and add the interference condition of aerobic exercise, aerobic exercise to explore these changes can have what kind of influence.Methods: in this study, 100 SPD mice were randomly divided into four groups, the control group(CK), 20%(TM-A) transgenic group, exercise group(TM-B-E) 30% transgenic and 30% transgenic non exercise group(TM-B-NE), 25 rats in each group. The control group(CK) fed the GM Group YISHION, 20%(TM-A) 20% added phytase transgenic corn in the feed, 30% transgenic exercise group(TM-B-E) and 30% transgenic non exercise group(TM-B-NE) 30% added phytase transgenic corn in the diet. Exercise three times a week of aerobic exercise, respectively, in sixteenth and twentieth weeks of feeding the two time points of measurement of bone mineral density and bone mineral content and bone indexes were detected in the bone calcium and phosphorus.Results:1. Four groups of mice body weight change trend is consistent, and there was no significant difference between groups;2. At sixteenth weeks, the mice fed GM corn feed(TM-A, TM-B-E and TM-B-NE) and bone mineral density were significantly lower than those in control group(CK)(P<0.05);3. At sixteenth weeks and twentieth weeks, the bone density of the 30% transgenic non exercise group(TM-B-NE) mice was significantly lower than that of the 20% transgenic group(TM-A) and the 30% group(TM-B-E);4. In the twentieth week exercise group, 30%(TM-B-E) transgenic mice bone density was significantly increased at sixteenth weeks(P<0.05);5. Attwentieth weeks, the transgenic non exercise group(TM-B-NE) bone mineral content were significantly reduced, significantly lower than the control group(CK) and exercise group(TM-B-E) gene; 6. In sixteenth weeks and twentieth weeks, 20% groups of genetically modified(TM-A) bone mineral content in mice than in the control group(CK); 7. At twentieth weeks, 30% transgenic mice(TM-B-E) mice bone calcium content was significantly higher than that in the group of mice at sixteenth weeks(P<0.05), and even higher than the control group(CK); 8. There was no statistically significant difference between the groups of bone phosphorus content.Conclusions: 1.the weight increased 1 adding phytase transgenic corn fed mice fed mice body weight and purity are basically the same, and there were no significant differences between the 2 groups; 2. GM corn can significantly reduce the mice bone mineral density; 3. the 3 exercise can increase bone density; 4. edible phytase transgenic corn feed containing mouse bone mineral content lower than the normal value; 5. exercise can improve the bone mineral content; 6. the appropriate amount of exercise can promote the absorption of calcium; 7. edible transgenic phytase corn. After 16-20 weeks, the bone calcium content influence on mice than bone phosphorus content.