ABSTRACT
Three kinds of fortified biscuits and bread were given as breakfast for 5 months to 106 preschool children 4-6 years old lodged in a kindergarten, with a control group taking common biscuits and bread without fortification. 6 g protein and 160 kcal were supplied by 50 g of fortifed foods in which 0.25 g lysine, 0.25 g lysine and 0.8 mg riboflavin, and cod liver oil and calcium in addition to lysine and riboflavin were fortified respectively. The results showed that a diet with intake of 2.1 g protein and 71 kcal/kg body weight fortified on the average by 228 mg lysine or 228 mg lysine and 1.1 mg riboflavin increased the monthly increment of body weights, heights, and urinary excretions of creatinine per day. There was also a tendency of improvement, in nitrogen retention. The urinary excretion of riboflavin in load test was increased in the group taking the second kind of fortified foods.
ABSTRACT
Pancreas of 53 aborted fetuses ranging from 5 to 41 weeks were fixed in Bouin's fluid and embedded in paraffin, and the sections were stained with Alcian bluephloxine and Grimelius silver technique. The A, B and D cell of islet of Langerhans were demonstrated with immunohistochemical PAP method also. 14 pancreas among them were fixed in 2% glutaraldehyde and embedded in Epon 812, and observed with TEM. Typical A, B and D islet cells were observed with LM at 12 weeks of fetal age. Undifferentiated, differentiated and degenerated cells were distinguished in the pancreatic islets at 14 to 41 weeks of fetal age. The secretory granules of the exoerine cells were observed after 14 weeks of fetal age. The functional differentiation of endocrine cells precede that of exocrine cells. The morphometrical measurement testified that the endocrine portion of fetal pancreas was obviously larger than that of adult. This study provides some morphological data for the pancreas transplantation in clinical medicine.