Abstract: Provided is a medicinal composition to be topically administered for tooth regeneration therapy, said composition comprising an RNA molecule targeting USAG-1 or a nucleic acid molecule capable of yielding the RNA molecule and a pharmaceutically acceptable carrier.

Abstract: Provided are: an antibody which specifically binds to and neutralizes USAG-1 or an antigen-binding fragment thereof; and a pharmaceutical composition containing the antibody or the antigen-binding fragment.

Abstract: The present invention relates to fast forward (FF) and fast rewind (REW) mechanism of a magnetic recording and reproducing apparatus. This mechanism has: first and second arms to which first and second gears for tranferring the rotational forces of first and second flywheels to first and second reel axes are rotatably supported; a driving plate whose rotating direction differs in accordance with the running direction of a magnetic tape; and an FF lever and an REW lever for rotating this driving plate, wherein the driving plate is rotated by operating the FF or REW lever, the first or second arm is rotated by this driving plate, the rotation of first or second flywheel can be transferred to the first or second reel axis, and the FF operation is performed when operating the FF lever and the REW operation is executed when operating the REW lever irrespective of the running direction of the magnetic tape.

Abstract: A cassette tape player of a type wherein a cassette which has been inserted horizontally into the player, is moved vertically so as to be set in the playing position. The player has means for slightly moving back the cassette horizontally before it is moved vertically subsequently to the horizontal insertion, and means for managing the ejecting, forwarding, and rewinding operations, as well as release from the forwarding or rewinding operation to the normal playing condition, by making use of an axial movement and a rotation of a single shaft.