相关实验视频

Updated: Jun 10, 2025

Barnes Maze Testing Strategies with Small and Large Rodent Models

Barnes Maze Testing Strategies with Small and Large Rodent Models

Published on: February 26, 2014

在毛囊枯竭后的状态下,空间学习和记忆障碍与海马体葡萄糖吸收减少有关

Nur Zuliani Ramli¹, Mohamad Fairuz Yahaya², Nur Azlina Mohd Fahami³

¹Department of Biochemistry, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia; Department of Anatomy, Faculty of Medicine, Universiti Teknologi MARA, Jalan Hospital, 47000 Sungai Buloh, Selangor, Malaysia.

Experimental gerontology

|October 10, 2024

概括

鼠的更年期模型表明,卵巢功能丧失会损害空间学习和记忆. 这种损失还会触发海马体的代谢变化,影响认知功能.

科学领域:

神经内分泌学神经内分泌学
神经科学是一个神经科学.
代谢研究的研究.

背景情况:

更年期过渡是一个神经内分泌衰老过程,影响大脑结构和功能,可能导致认知缺陷.
更年期的动物模型显示了学习和记忆的变化,但大脑的结构和代谢变化仍未得到充分研究.
4 - 乙烯基环二氧化物 (VCD) 的管理是诱导因毛囊枯竭而导致动物更年期状态的验证模型.

研究的目的:

在更年期的老鼠模型中调查行为,结构和代谢大脑变化.
为了将卵巢功能下降与认知表现和大脑代谢相关联.
在临床前的环境中了解更年期过渡的神经系统.

主要方法:

雌性大鼠被给予VCD或载体,诱导卵泡枯竭模仿更年期.
行为测试评估了治疗后1,2,3个月的空间学习和记忆.
定子发射断层扫描 (PET) 测量了大脑的葡萄糖代谢,ex-vivo磁共振成像 (MRI) 评估了大脑体积.

主要成果:

接受VCD治疗的老鼠表现出空间学习受损和记忆后囊枯竭.
在接受VCD治疗的老鼠的海马体中观察到降低的葡萄糖代谢.
激素分析显示雌激素,孕和抗穆勒尔激素下降,卵泡刺激激素增加,与卵巢卵泡损失相关.

结论:

在更年期过渡期间的卵巢功能丧失显著损害了雌性大鼠的空间学习和记忆.
更年期引起的卵巢衰退会触发海马体的代谢变化,导致认知缺陷.
VCD诱导的老鼠模型有效地复制了更年期过渡及其神经后果的关键方面.

关键词:

4 - 乙烯基环烯二氧化物 (VCD)这就是为什么MRI是MRI.记忆记忆记忆记忆记忆更年期绝经绝经在这里,PET是PET.[(18) F] - 化氧化葡萄糖.

更多相关视频

Hippocampal Insulin Microinjection and In vivo Microdialysis During Spatial Memory Testing

Hippocampal Insulin Microinjection and In vivo Microdialysis During Spatial Memory Testing

Published on: January 11, 2013

Author Spotlight: Investigating the Effects of Mind-Body-Movement Practices on Brain Function

Author Spotlight: Investigating the Effects of Mind-Body-Movement Practices on Brain Function

Published on: January 26, 2024

相关概念视频

Role of Hippocampus in Memory

Role of Hippocampus in Memory

The hippocampus, a critical brain structure, plays an essential role in memory processing, particularly in the formation and retrieval of memory. This small, seahorse-shaped region is located within the medial temporal lobe, with one hippocampus in each brain hemisphere. Experimental studies involving lesions in the hippocampi of rats have demonstrated significant impairments in tasks such as object recognition and maze navigation, indicating the hippocampus involvement in both recognition and...

Long-term Depression

Long-term Depression

Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
Calcium Ion Concentration Mechanism
If over...

Higher Mental Functions of Brain: Learning and Memory

Higher Mental Functions of Brain: Learning and Memory

Memory is one of the most vital higher mental functions of the brain. Memory is closely related to learning because it enables us to retain information and experiences from our past to use them in our present life. It also helps us to remember facts, events, and skills, such as riding a bike or swimming. There are two types of memory — declarative memory, which involves memorizing facts or events, and procedural memory, which enables us to remember how to do something like writing or...