Abstract: The present invention provides a bone connection material that includes an internal layer. The internal layer is formed by braiding a plurality of filaments. The internal layer that is formed by braiding filaments is resistant to lateral shearing forces and may provide flexibility so as to achieve wide applications. Further, the present invention overcomes the drawback of the conventionally used metallic materials that are rigid and inelastic and also overcomes the problem of polylactic acid material of being brittle. Thus, the bone formed according to the present invention is close to a natural bone and is more suitable for uses in portions where frequent movements are made and scaffolds of stem cells.

Abstract: Disclosed herein are recombinant cell lines harboring therein an exogenous luciferase gene, in particular transfected mouse hepatoma cell lines Hepa1c1c7-M4P2 and Hepa1c1c7-MP, in which a DNA fragment having nucleotide sequences “cacgc” and “gcgtg” that may be specifically present in dioxin-response elements is located upstream of the luciferase gene, the DNA fragment being designed based on the promoter region and a part of the front sequence of the structure gene of Mus musculus CYP1A1 gene. As such, the recombinant cell lines and the subcultured offsprings thereof can be used via bioassay for the detection of dioxin-like compounds present in a sample collected from a natural environment, including: soil; water sources; edible meats, fishes, vegetables and fruits and the like; and flues, bottom ashes, sludge or the like in plants or incinerators.