We report herein effects of varying dietary zinc contents on burns healing and correlation between serum zinc and serum alkaline phosphatase (AKP) activity and serum protein in 15% total body surface area (TBSA) of Ⅲ? burned Lop rabbits, serum zinc concentration in the rabbits given a low zinc diet for 2 weeks and those with burns decreased significantly, and further decreased and failed to return to normal in the rabbit with a low zinc diet and burns. On the contrary, serum zinc was recovered rapidly to normal in the groups fed an adequate zinc diet.Similar changes were found in serum AKP activity.Postburn total serum protein and albumin contents were markedly decreased and did not return to normal on d 15. Burns healing in the high zinc group was over 10 d faster than that in the low zinc group. Serum zinc was found to be well correlated with serum AKP activity and serum protein. These results strongly suggest that zinc migt be a factor benefiting burns healing. We conclude that serum AKP activity could be used as a diagnostic criterion of postburn hypozincemia as well as a valid index in the assessment of the effectiveness of supplemental zinc.

The mutagenicities of 40 kinds of soy sauce treated with 50 mmol/L nitrite, at pH 3.00, 1 h, 37℃ were detected on S. typhimurium TA 98 and TA 100. 38 kinds of soy sauce showed significant direct-acting mutagenicity toward 2 strains without S9 mix; and other 2 kinds presented indirect-acting mutagpnicity with S9 mix. The mutagenicities of retail soy sauce were markedly higher than that of the bottled, and 1 ml of samples of former induced more than 100 000 revertants of TA 100 without S9 mix. When No. 15 soy sauce was incubated with 1, 2, 3, 4, 5, 10 and 50 mmol/L nitrite, the equivalent of 1 ml of soy sauce induced 3384, 4452, 4823, 5400, 6792, 7536 and 10956 revertants, respectively, to TA 100 without S9 mix.

Short chain fatty acids(SCFA) are produced in the large bowel of humans by anaerobic bacterial fermentation.The main fermentative substrates are undigested dietary carbohydrates,including nonstarch polysaccharides and resistant starch(RS).SCFA are major organic acids in the lumen of the large intestine.They are preferred energy source for colonocytes.Their effects include enhancement of electrolyte uptake,stimulation of colon epithelial cell proliferation and mucosa growth,modulation of colonic immune function,nutritional support and protection of colon mucosa.Butyric acid can suppress colon neoplasm cell proliferation,induce its apoptosis and differentiation,affect proto-onc genes expression,which suggest that butyrate may be an important agent in cancer treatment.

Many data show that hyperhomocysteinemia is correlated with the increased rate of cardiovascular diseases.Yet,there is controversy about the relationship between mild hyperhomocysteinemia and cardiovascular diseases.Lots of study suggest that the concentration of plasma homocysteine was reduced by using folic acid in patients with cardiovascular diseases.But,the effect of folic aicd can not be identified from other factors reducing the concentration of plasma homocysteine.

Objective To evaluate the promote effect of Danisco products Bifidobacterium Lactis Bi07 & Lactobacillus acidophilus NCFM on physical intestinal canal microbial eco-system.Methods A 3-week randomized trial was conducted in 400 healthy persons aged from 25 to 45 years,with a male to female ratio of 1∶1,they were randomly divided into 2 groups: placebo group and probiotics group.Each group takes the corresponding products 100 g twice everyday at 10 a.m.and 4 p.m respectively.Results Digestive system on microbial eco-system was effectively improved.The viable count of Bifidobacteria and Lactobacillus was significantly increased.The viable count of Clostridiumperfringen was significantly decreased.Conclusions Significant effectiveness on physical intestinal canal microbial ecosystem were proved by intake Danisco probiotics products 200 g per day for 21 days.

Sport fatigue affects exercise ability of human being.A number of experiments of animals and humans have proved that the rational usage of nutritional supplementation will eliminate the fatgue caused by over-exerise,and improve exerise ability.This review is about the effect of the nutritional supplementation in eliminating sport fatigue.

Whey protein has high biologic value and absorption rate.In its purest form, whey protein contains little fat,lactose or cholesterol and is a rich source of branched chain amino acid and bioactive peptides.The broad application prospect of whey protein on nutrition,medical care and food making are stressfully discussed.It provides a number of benefits in areas including cardiovascular, diabetes,immune support,infant nutrition,aging postpone,and general wellness etc.