2004年麦吉尔大学的大鼠试验发现母鼠的某些特定行为使幼鼠大脑海马区的某些基因沉默，小鼠处理应激激素的能力因而下降。
A 2004 McGill University study of lab rats found that certain maternal behaviors can silence a gene in the hippocampi of their pups, leaving them less able to handle stress hormones.
结论雌激素补充治疗能选择性影响基底前脑各亚区NOS和胆碱能神经元，并有可能影响学习和记忆能力。
Conclusion estrogen replacement can selective effect on the different basal forebrains subregion NOS and cholinergic neurons, and may concern ability of learning and memory.
与鲻鱼甲状腺相比，文昌鱼内柱的结构更为原始，仅是部分区带演变为甲状腺激素分泌细胞，而其余区带仍与摄食相关。
Compared with the thyroid gland of grey mullet, the endostyle of amphioxus is primitive. It is an open groove and has lots of cillia adjacent to the pharynx lumen.
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