Abstract: The present invention relates to the use of 5-(p-methoxyphenyl)-1,2-dithiole-3-thione or of a pharmaceutical derivative thereof for the preparation of a medicament for preventing lung cancer in a mammalian subject, especially for preventing or reducing the appearance of new dysplastic lesions, or the progression of pre-existing dysplastic lesions in the subject, or for improving regression of existing dysplastic lesions.

Abstract: The invention provides a device and method for monitoring inflammation of the epithelium. The device consists of a head region, a handle region and an optical bundle. At least two of the optical fibers in the bundle are utilized as a source of radiation, these two fibers are at two different angles from normal. At least one of the other optical fibers is utilized as a detector for the reflected radiation, or alternatively an image guide can be used as the detector. The device of the invention can be part of an external or internal system that can include a light source, the device, a multiplexer, a spectrometer, and a computer for data analysis. The method of the invention allows for the detection and monitoring of general inflammation of the oral epithelium. The inflammation of the epithelium can be detected or monitored to diagnose diseases of the oral epithelium, monitor such diseases, monitor treatment of such diseases, or pre-screen for and monitor preventative treatments of such diseases.