Astellas Pharma Gmbh

Jianwei Ni

Shinobu Mochizuki

Yukihiro Nakamura

There is discloses a transgenic mouse over-expressing a potassium channel BEC1, which can be used as an effective tool for screening a substance for antidementia or a substance to improve learning and memory. Also disclosed are an in vivo screening method of a substance for antidementia or a substance to improve learning and memory, which uses the learning and memory abilities of said mouse as the index, and an in vivo screening of a substance for antianxiety, which uses acceleration of anxiety as the index. In addition, there is disclosed a method for producing a pharmaceutical composition for antidementia, learning and memory improvement use or antianxiety, using a substance capable of inhibiting the learning and memory potassium channel activity as the active ingredient which can be obtained by the aforementioned screening method of the present invention.

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Tsukuba, Japan

Jianwei Ni