Conclusion The number of cholinergic neurons and abilities of learning and memory of vascular dementia rats are decreased.

结论：血管性痴呆大鼠海马胆碱能神经元减少，空间记忆能力下降。

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CONCLUSION: Oxygen enrichment can improve the learning and memory abilities, and strengthen the motor ability of hypoxic rats.

结论：富氧能改善缺氧大鼠的学习记忆功能，提高低氧环境运动作功能力。

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AIM: To analyze the influence of high-altitude hypoxia on the expression of cerebral cortex, hippocampus neurogranin in rats in relation to learning and memory abilities.

目的：分析高原低氧环境对大鼠大脑皮质、海马神经颗粒素表达的影响以及与学习记忆的关系。

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