Abstract: Problem to be Solved An object of the present invention is to provide an eliminator that exterminates lice by blocking the lice from the outside, for example, by sealing the spiracle of the louse, that can be used on humans, animals, clothes, and the like, and that is easy to adhere to and spread out over the outer skin of lice without being repelled by the outer skin when brought into contact with the lice. Solution The problem can be solved by a lice eliminator or the like which is characterized in that a louse precipitation rate which is a proportion in percentage of the lice precipitating completely into the lice eliminator with respect to the lice dropped onto the lice eliminator when multiple lice have been dropped is 50 to 100%.

Abstract: The invention provides a brain-specific gene useful in treating Alzheimer's disease, for instance, which comprises a nucleotide sequence cording for the amino acid sequence shown in SEQ ID NO:1 and fragments thereof; an expression vector comprising the gene; a host cell comprising the expression vector; an expression product of the gene; an antibody against the product; a therapeutic and prophylactic composition for neurodegenerative disease; and the like.