Preventive effect of theanine intake on stress-induced impairments of hippocamapal long-term potentiation and recognition memory

Highlights ► Theanine intake decreases serum corticosterone level after stress. ► NMDAR-dependence of CA1 LTP is reduced without a decrease in the magnitude of LTP. ► Theanine intake rescues stress-induced attenuation of CA1 LTP. ► Theanine intake rescues stress-induced impairment of memory. ► The l...

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Veröffentlicht in:	Brain research bulletin 2013-06, Vol.95, p.1-6
Hauptverfasser:	Tamano, Haruna, Fukura, Kotaro, Suzuki, Miki, Sakamoto, Kazuhiro, Yokogoshi, Hidehiko, Takeda, Atsushi
Format:	Artikel
Sprache:	eng
Schlagworte:	2-Amino-5-phosphonovalerate - pharmacology Animals Corticosterone Excitatory Postsynaptic Potentials - drug effects Glutamates - pharmacology Green tea Hippocampus - drug effects Hippocampus - physiopathology Humans Long-Term Potentiation - drug effects Long-Term Potentiation - physiology LTP Male Neurology Plant Extracts - pharmacology Rats Rats, Wistar Receptors, N-Methyl-D-Aspartate - metabolism Recognition (Psychology) - drug effects Recognition (Psychology) - physiology Recognition memory Stress Stress, Physiological - drug effects Synapses - drug effects Tea - chemistry Theanine
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Zusammenfassung:	Highlights ► Theanine intake decreases serum corticosterone level after stress. ► NMDAR-dependence of CA1 LTP is reduced without a decrease in the magnitude of LTP. ► Theanine intake rescues stress-induced attenuation of CA1 LTP. ► Theanine intake rescues stress-induced impairment of memory. ► The less responsiveness to stress may participate in the preventive effects.
ISSN:	0361-9230 1873-2747
DOI:	10.1016/j.brainresbull.2013.02.005