We made so far some nutritional studies on smoking to find a few facts about the change of the activity of metabolic enzymes caused by the oral intake of nicotine. In this experiment we studied the influence of “smoking”, instead of the intake of nicotine, on the same enzymes. At the same time, we have investigated the relationships between the intake of protein and the degree of enzyme activity. Enzymes used in this experiment were transaminase, cholinesterase and xanthine oxidase; animals used were rats. We put the rats in a special box and sent smoke into it, and let them breathe in the smoke for some time. We repeated it every day for three weeks. The results obtained were as follows: 1. We found little change in the activity of xanthine oxidase. 2. The activity of transaminase (GOT, GPT) has declined in the case of slight smoking, but intensified in the case of heavy smoking. 3. The activity of cholinesterase was decreased, according to the increase of smoking. 4. High protein feeds were effective in preventing the loss of weight due to smoking. 5. High protein feeds were effective to the prevention of the decrease of enzyme activity only in the case of slight smoking. We intend, in the future, to attend to the change of the activity of cholinesterase and using it as an indicator we are going to pursue the favorable nutritional conditions for smoking.
It has been known that pregnancy anemia was caused by iron deficiency and also many of patients were found in the level of low protein intake people. We studied the relationship between dietary protein levels and iron given by stomach tube to pregnancy anemia of rats during gestation. Rats were divided into four groups depending on the level of protein intake, 26% protein contents and 7% protein contents and also each group were separated two groups, iron given and no iron given group. Concerning to the effect of iron given for anemia, iron had more effect for growth of embryo, Hb and RBC in the high protein group during gestation. In case of newborn rats, Hb and RBC were taken good effect by iron given in the low protein group but no effect in the high protein group. The embryo avariciously absorbs protein and iron or any other materials he needs from his mother in spite of high and low protein intake. It will have more effect for pregnancy anemia to give iron material and high protein diet than iron material only during gestation.
This study was undertaken to apprise the relationship between the food preferences of parents and these of their preschool child. It was difficult to measure this relationship because the child of preschool age did not have as wide experience with food as his parents. To have a common bases for the evaluation of the food preferences of the child and his parents, preference of milk and tomato was tested. A score was derived for each child and each parents. The coefficient of correlation was calculated from these scores. The results as follows; 1. The preference rate of milk and tomato among parents have no relation with age and occupation. 2. The preference rate of milk and tomato among preschool children have no relation with father's occupation, parents' age and birth number. 3. The relationship between the child's and his father's preference for tomato and milk is more closer than that of the child and his mother.
Food preferences of the obese child are particular interest because they affect the child's consumption of the foods needed for growthspeed and are also significant in his social development. This study was undertaken to investigate the influence of the food preferences of the parent on those his obese child. The subjects of this survey were 168 obese children and 189 nonobese children from primary school in Kitakyushu City. The questionaire was in four parts; (a) social situation (father's occupation and education), (b) nutritional status, (c) father's custom of drinking and smoking, (d) food preference of selected meals. The results as follows; 1) The child's preference of sausage showed the highest percent of like rating, but the categories of carot, fermented soybeans and onion give the lowest percent of like rating. 2) The difference of food preference between the obese child and the nonobese child was not significant. 3) Food preferences of the children (both obese and nonobese) have no relation to his father's custom of drinking and smoking. 4) The relationship between the father's and his partner's preference is more closer than that of the child and his parent, but cannot find out the systematical correlation because the complicated factors combinate together.
The amino acid nutrition in both of the farming village of coast district and the forestry village of mountain district in Kagoshima Prefecture was compared with each other. The amino acid intake in the both districts was more than all the safe daily intake values suggested by Leverton, Rose and the FAO Committee. Protein scores in the both districts were almost the same, 81-82. The E/T of the two were about 2500, which are far more than that of the reference protein (FAO(1957)), 2020. The values of chemical scores, egg, human milk and cow's milk scores, were just or almost the same in the two districts, 70, 89 and 83-84 respectively, the limiting amino acids of which were sulfur containing amino acids, tryptophan and lysine, respectively. Little correlation was observed between all the above scores and each nutrient intake, and especially no correlation between E/T and each nutrient. In the both districts the positive correlation was observed between both cow's milk score and animal protein ratio or intake, and human milk score and cow's milk score. Also, the negative correlations were observed between both egg score and intake of soybean, and cow's milk score and cereals intake, while in the coast district the positive one was between cow's milk score and intake of fishes.