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Brain microdialysis in exercise research
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DOI：10.2165/00007256-200131140-00002.png)
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During the last 5 to 10 years, the microdialysis technique has been used to explore neurotransmitter release during exercise. Microdialysis can collect virtually any substance from the brains of freely moving animals with a limited amount of tissue trauma. It allows the measurement of local neurotransmitter release in combination with ongoing behavioural changes such as exercise. Several groups examined the effect of treadmill running on extracellular neurotransmitter levels. Microdialysis probes were implanted in different brain areas to monitor diverse aspects of locomotion (striatum, hippocampus, nucleus accumbens, frontal cortex, spinal cord), food reward (hypothalamus, hippocampus, cerebral cortex), thermoregulation (hypothalamus). Some studies combined microdialysis with running on a treadmill to evaluate motor deficit and improvement following dopaminergic grafts in 6-hydroxydopamine lesioned rats, or combined proton nuclear magnetic resonance spectroscopy and cortical microdialysis to observe intra- plus extracellular brain glucose variations. This method allows us to understand neurotransmitter systems underlying normal physiological function and behaviour. Because of the growing interest in exercise and brain functioning, it should be possible to investigate increasingly subtle behavioural and physiological changes within the central nervous system, and to link this with neuroendocrinological data, to better understand a stress called exercise.
Keyword:
MEDIAL PREFRONTAL CORTEX
MONOAMINERGIC DESCENDING PATHWAYS
STRESS-INDUCED SENSITIZATION
HUMAN SKELETAL-MUSCLE
NUCLEUS-ACCUMBENS
DOPAMINE RELEASE
EXTRACELLULAR DOPAMINE
MOTOR-ACTIVITY
ACETYLCHOLINE-RELEASE
RAT HIPPOCAMPUS
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9.4
论文数:
5.1K
被引数:
3.0W
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