神經(jīng)元和神經(jīng)膠質(zhì)細(xì)胞-膠質(zhì)細(xì)胞 composition of nervous tissu-預(yù)覽頁
【正文】 l neurotransmitters and neuromodulators ? Increase of intracellular calcium concentration ? Membrane depolarization in astrocytes are mon responses to neural activity ? Metabolically coupled to neural activity Metabolism of Astrocytes and their Metabolic Cooperation with Neurons ? Glucose ? Amino acid metabolism ? Enzymes: ? glutamine synthetase(glutamateglutamine cycle)。 ? glycine cleavage system, glycine metabolism. ? Three Types of Metabolic Cooperation of Astrocytes and Neurons 1. Supply of the energy substrate lactate to neurons 2. The recycling of neuronal glutamate by the glutamateglutamine cycle 3. The supply by astrocytes of precursors for neuronal glutathione (GSH) synthesis
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