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Determining the Contribution of the Energy Systems During Exercise
Published on: March 20, 2012
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Aerobic exercise upregulates the BDNF-Serotonin systems and improves the cognitive function in rats
A Pietrelli1, L Matković2, M Vacotto3
1Universidad de Ciencias Empresariales y Sociales (UCES), Departamento de Investigación en Ciencia Básica, Buenos Aires, Argentina; CONICET-Universidad de Buenos Aires, Instituto de Biología Celular y Neurociencia (IBCN), Buenos Aires, Argentina.
Neurobiology of Learning and Memory
|May 26, 2018
Summary
Lifelong aerobic exercise boosts brain health by enhancing brain-derived neurotrophic factor (BDNF) and serotonin (5-HT) systems, improving cognitive function and protecting against aging effects in rats.
Area of Science:
- Neuroscience
- Exercise Physiology
- Aging Research
Background:
- Aerobic exercise (AE) is known to benefit brain health and behavior.
- Serotonin (5-HT) and brain-derived neurotrophic factor (BDNF) are key mediators of cognitive processes.
- BDNF influences 5-HT neuron function, while 5-HT is involved in exercise-stimulated neuroplasticity.
Purpose of the Study:
- To investigate the long-term effects of lifelong aerobic exercise on BDNF and 5-HT systems.
- To assess the impact of AE on cognitive function across different age groups in rats.
- To determine the protective effects of AE against age-related cognitive decline.
Main Methods:
- A lifelong moderate-intensity aerobic training program was implemented in rats.
- Biochemical, immunohistochemical, and behavioral assays were used to analyze brain tissue and cognitive function.
- Levels of BDNF, 5-HT, SERT, 5-HT1A receptor, and mature neurons (NeuN) were quantified in key brain regions.
Main Results:
- AE significantly improved spatial and non-spatial memory, with age-modulated effects.
- Lifelong AE led to increased BDNF levels in the cortex, hippocampus, and striatum.
- AE upregulated brain 5-HT levels, SERT, and 5-HT1A receptor expression, with notable preservation in aged rats.
Conclusions:
- Lifelong aerobic exercise positively modulates BDNF and 5-HT systems, enhancing cognitive function.
- AE demonstrates a protective effect on brain health, mitigating the negative impacts of aging and sedentary behavior.
- Consistent aerobic training supports neuronal health and cognitive performance throughout the lifespan.
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