A screening tool and a screening method of a substance which is useful as an agent for improving the memory, an agent for improving learning ability, and/or an antidementia agent; a polypeptide, a polynucleotide, a vector, and a cell which may be used in the above screening; and a novel agent for improving the memory, a novel agent for improving learning ability, and/or a novel antidementia agent are disclosed. The above screening tool is composed of a calcium-permeable nonselective cation channel or a cell expressing the channel.
本发明公开了一种物质的筛选工具和筛选方法,该物质可用作改善记忆力的制剂、改善学习能力的制剂和/或抗痴呆制剂;一种
多肽、一种多核苷酸、一种载体和一种细胞,可用于上述筛选;以及一种改善记忆力的新型制剂、一种改善学习能力的新型制剂和/或一种新型抗痴呆制剂。 上述筛选工具由
钙离子通道或表达该通道的细胞组成。