Large quantity of arginine, lysine and proline as well as small amount of glutamic acid and asparagic acid are found in the biological active peptides by amino acid analysis.

氨基酸组成分析发现活性肽中含有较多的精氨酸、赖氨酸和脯氨酸，同时含较少的谷氨酸和天冬氨酸。

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AIM: To study the effects of chronic multiple stress on learning and memory and changes of N-methyl-D-asparagic acid (NMDA) receptor subunits NR2A and NR2B expression in hippocampus of rats.

目的：观察慢性复合应激对大鼠学习与记忆的影响及应激后脑海马内N-甲基-D-天冬氨酸受体亚基NR2A，NR2B表达的变化。

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