A method for treating and/or preventing Type I diabetes mellitus in mammals and humans by administration of at least one of the following: (i) gamma interferon, (ii) an analog of gamma interferon or (iii) an inducer of gamma interferon thereof is taught. The use of gamma interferon, analogs thereof,...http://www.google.co.uk/patents/US5624895?utm_source=gb-gplus-sharePatent US5624895 - Treatment and/or prevention of type I diabetes mellitus with gamma interferon administration