Lymph Node Follicular Dendritic Cell Damage from Viral Protein Expression in HIV/AIDS Patients

An adjustment device for the longitudinal adjustment of a vehicle seat is provided which has two rails which are guided displaceably in the longitudinal direction and of which the bottom rail can be secured non-displaceably and the top rail can be connected to the seat and can be displaced therewith. Also provided is a gear mechanism whose housing is connected to, and can be displaced with, the top rail in the longitudinal direction and penetrates through the top rail into the bottom rail and contains a rotary worm which is in engagement with at least one row of teeth of the bottom rail. The housing of the gear mechanism is isolated from the top rail and, at the base, is seated on the underside of an inner rail position, where the housing part of the gear mechanism is guided on associated longitudinal-guidance surfaces of the first rail.