文章基本信息

标题：血中遊離アミノ酸濃度変化から見たメチオニンとスレオニンの相互関係
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作者：守時圭子 ; 吉田昭
期刊名称：日本栄養・食糧学会誌
印刷版ISSN：0287-3516
电子版ISSN：1883-2849
出版年度：1970
卷号：23
期号：5
页码：351-355
DOI：10.4327/jsnfs1949.23.351
出版社：Japanese Society of Nutrition and Food Science
摘要：Rats fed on a low casein diet supplemented with sulfur containing amino acid produce fatty livers and the liver fat accumulation is prevented by the further supplementation of threonine. From this fact, metabolic interrelationships between methionine and threonine were studied with special reference to the plasma level of free amino acids. Supplementation of 0.3% of methionine or cystine to a 8% casein diet, reduced slightly the plasma level of most free amino acids of rats, but the decreases in the level of threonine, serine and glycine were remarkable. Similar decreases were observed even when threonine was supplemented to the low casein diet previously to meet the requirement of rats. In the next experiments, dietary level of methionine was variously changed by using an amino acid mixture in the diet. The plasma level of threonine, serine, and glycine showed the inverse relation to the dietary level of methionine. These results may have relation to the fatty livers due to methionine supplementation and its prevention by threonine.