Fetal and Maternal Amino Acid Concentrations During Fasting in the Ewe
Fetal and Maternal Amino Acid Concentrations During Fasting in the Ewe
复制标题
母羊禁食期间胎儿和母体氨基酸浓度
DOI：
10.1097/00005176-198403000-00015
复制
发表时间：
1984
影响因子：
2.9
通讯作者：
Richard L. Schreiner
中科院分区：
文献类型：
--
作者：
James A. Lemons;D. Reyman;Richard L. Schreiner
The present investigation was undertaken to quantitate the whole-blood amino acid concentrations of the mother and fetus over an extended period of fasting using a chronic sheep preparation. Fetal amino acid levels generally increased or remained relatively high during the fast (e.g., alanine, glycine, valine, leucine). In contrast to the situation in the fetus, most amino acids (alanine, glycine, glutamine, serine, and threonine) decreased in concentration in the ewe with fasting. Alanine levels changed most dramatically in the ewe, decreasing to less than 50% of the fed state values within 72 h of fasting. Therefore, while the supply of gluconeogenic amino acids becomes limited within the maternal circulation during fasting, levels of these amino acids remain high or increase in the fetal arterial blood.
