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Simultaneous Monitoring of Wireless Electrophysiology and Memory Behavioral Test as a Tool to Study Hippocampal Neurogenesis

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Published on: August 20, 2020

Eleutheroside B or E enhances learning and memory in experimentally aged rats.

Debin Huang¹, Zehua Hu¹, Zhaofen Yu¹

¹Department of Pharmacology, Hubei Institute for Nationalities, Enshi 445000, Hubei Province, China.

Neural Regeneration Research

|September 11, 2014

Summary

Eleutheroside B or E from Acanthopanax improves memory and cognition in aged rats by boosting acetylcholine levels. This natural compound may offer a new therapeutic avenue for age-related cognitive decline.

Keywords:

Huperzine A acetylcholine aged rats choline cholinesterase eleutheroside B or E grants-supported paper hippocampus learning and memory mechanism neural regeneration neuroregeneration quinolinic acid traditional Chinese medicine

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Analysis of Learning and Memory Ability in an Alzheimer's Disease Mouse Model using the Morris Water Maze

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Published on: October 29, 2019

Area of Science:

Neuroscience
Pharmacology
Gerontology

Background:

Aging is associated with cognitive decline, including memory impairment.
Acetylcholine plays a crucial role in learning and memory, and its levels are often reduced in aging and Alzheimer's disease.
Eleutheroside B or E, derived from Acanthopanax, is known for its potential to relieve fatigue and enhance cognition.

Purpose of the Study:

To investigate the effects of Eleutheroside B or E on cognitive function in an aged rat model.
To explore the underlying mechanisms, particularly the cholinergic system, involved in Eleutheroside B or E's effects.

Main Methods:

An aged rat model was induced using quinolinic acid in the hippocampal CA1 region.
Rats were treated with varying doses of Eleutheroside B or E, Huperzine A (positive control), or PBS (negative control).
Behavioral tests (Morris water maze), histological analysis (Hematoxylin-eosin staining), and biochemical assays of hippocampal homogenates were performed.

Main Results:

Eleutheroside B or E treatment dose-dependently reduced escape latency and errors in the Morris water maze.
Histological examination revealed increased survival of hippocampal neurons and reduced pathological injury in Eleutheroside B or E treated groups.
Biochemical analysis showed enhanced cholinesterase activity, increased acetylcholine, and decreased choline content in the hippocampus.

Conclusions:

Eleutheroside B or E effectively improves learning and memory in aged rats.
The cognitive-enhancing effects are likely mediated by the activation of cholinesterase and/or enhanced choline reuptake, leading to accelerated acetylcholine synthesis.
Eleutheroside B or E shows potential as a therapeutic agent for age-related cognitive impairment.