[Effects of centipede extract on life span of drosophila].

Objective: To evaluate effects of centipede on life span of drosophila and on the appearance of the filial generation.

Methods: Drosophila melanogaster (male and female) were cultured in tubes with centipede extraction at concentrations of 0, 0.2%, 1%, 2.5%, or 5% until all drosophila died. The appearance of the filial generation were observed.

Results: The life span, including average, longest and shortest life span was shortened in exposed groups of both sexes and significantly dose-dependent. The appearance of the filial generation showed normal.

Conclusion: Centipede extracts accelerates the aging of drosophila and shortens their life span. The appearance of the filial generation is not affected. Clinic using centipede for a long period should be carefully.