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Different cells from the system L screen; no claim all routes are sodium-dependent.\nexposure: Theanine 0.1-10 millimolar in uptake assays; sustained 10 millimolar for glutamate release\nevidence_span: {\"source_cache\": \"artifacts/theanine-research/18293419.abstract.txt\", \"locator\": \"Primary indexed abstract; zero-based, end-exclusive Unicode character offsets\", \"file_sha256\": \"c94471071feadec8a04eafa7e9d53999dd9756b7f1d5dc1f351152b9b5f4b5d3\", \"start_char\": 0, \"end_char\": 1751, \"text_sha256\": \"c94471071feadec8a04eafa7e9d53999dd9756b7f1d5dc1f351152b9b5f4b5d3\"}\n[theanine-p18293419] Theanine, an ingredient of green tea, inhibits [3H]glutamine transport in neurons and astroglia in rat brain. 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