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Exercise Influence on Hippocampal Function: Possible Involvement of Orexin-A.
Sergio Chieffi1, Giovanni Messina2, Ines Villano1
1Section of Human Physiology and Unit of Dietetic and Sport Medicine, Department of Experimental Medicine, Second University of Naples Naples, Italy.
Frontiers in Physiology
|March 7, 2017
Summary
Physical exercise boosts brain health by enhancing hippocampal neurogenesis and function, improving cognition, and regulating mood. This may help counteract age-related cognitive decline and depression.
Area of Science:
- Neuroscience and Exercise Physiology
- Focuses on the hippocampus and its response to physical activity.
Background:
- Physical exercise is known to positively impact the hippocampus.
- This enhancement is linked to improved cognition and mood regulation.
- Key factors include increased vascularization and growth factors like BDNF.
Purpose of the Study:
- To review the effects of physical exercise on the hippocampus.
- To explore the role of orexin-A as a contributing factor.
- To highlight exercise's potential in mitigating age-related cognitive decline and depression.
Main Methods:
- Review of existing animal and human research.
- Analysis of factors influencing exercise-induced hippocampal changes.
- Examination of the role of Brain-Derived Neurotrophic Factor (BDNF) and orexin-A.
Main Results:
- Physical exercise enhances hippocampal neurogenesis and function.
- BDNF is a significant factor in mediating these benefits.
- Orexin-A levels increase with exercise and may also promote neurogenesis.
Conclusions:
- Exercise offers a promising non-pharmacological approach to support cognitive health.
- It may help prevent or alleviate cognitive decline associated with aging.
- Exercise can be a valuable tool for ameliorating depressive symptoms.
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