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SPATIAL MEMORY RECOVERY IN AGED MALE RATS TREATED WITH LEUPROLIDE ACETATE, A GNRH AGONIST
M Macedo-Mendoza1, D Calderón-Vallejo1,2, M L González-Torres3
1Universidad Autónoma de Aguascalientes, Centro de Ciencias Básicas, Department of Physiology and Pharmacology.
Acta Endocrinologica (Bucharest, Romania : 2005)
|January 23, 2025
Summary
Leuprolide acetate (LA) enhances spatial memory and hippocampal plasticity in aged male rats. This Gonadotropin-releasing hormone (GnRH) agonist shows potential for restoring cognitive function in aging individuals.
Area of Science:
- Neuroscience
- Aging Research
- Pharmacology
Background:
- Cognitive decline, particularly in spatial memory, is a common aspect of aging across species.
- Gonadotropin-releasing hormone (GnRH) administration has shown promise in improving learning in aged, gonadectomized rats.
Purpose of the Study:
- To investigate the effects of the GnRH agonist, leuprolide acetate (LA), on spatial memory in aged, intact male rats.
- To examine the impact of LA on the expression of proteins crucial for hippocampal plasticity.
Main Methods:
- Aged male rats received regular injections of LA or saline over nine weeks.
- Spatial memory was assessed using the Morris Water Maze and the Y-maze test.
- Hippocampal expression of spinophilin and microtubule-associated protein 2 (MAP2) was quantified.
Main Results:
- LA treatment significantly improved spatial memory performance in aged rats.
- Increased expression of spinophilin and MAP2 was observed in the hippocampus following LA administration.
- These findings suggest a positive correlation between LA treatment and enhanced hippocampal plasticity.
Conclusions:
- Leuprolide acetate demonstrates efficacy in improving spatial memory in aged male rats.
- LA treatment may restore cognitive function by modulating hippocampal plasticity-related proteins.
- LA presents a potential therapeutic strategy for age-related cognitive impairment.
