The Mouse Adult Gross Anatomy Ontology and Mammalian Phenotype Ontology are downloaded weekly from the Mouse Genome Informatics databases at Jackson Laboratories (ftp://ftp.informatics.jax.org/pub/reports/index.html). For more information about these ontologies, see the MGI Publications Page at http://www.informatics.jax.org/mgihome/other/publications.shtml.
autoimmune joint inflammation, marked by changes in the synovial membranes and thickening of articular structures, widespread degeneration of the collagen fibers in connective tissues, and by atrophy and rarefaction of bony structures