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Query: UMLS:C0022568 (keratitis)
 5,133 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Corneal opacities were observed in numerous strains and stocks of laboratory mice (Mus musculus) from different microbiological environments. The opacities were characterized as acute and chronic inflammatory lesions of the corneal epithelium and anterior corneal stroma, including corneal ulcers and erosions, acute keratitis, stromal neovascularization and mineralization of the basement membrane zone. Some strains and stocks of mice from barrier-reared colonies had a high incidence of corneal opacities [DBA/2 (29.1%), C3H (16.2%), CF1 (16.2%) and BALB/c (10.0%)] while others had a lower incidence [CD-1 (4.3%) and C57BL/6 (4.1%)]. Axenic and gnotobiotic mice had a very low incidence of corneal opacities (1.6%). An experimental study demonstrated that twice weekly cage cleaning would reduce the incidence of corneal opacities to a very low level. A bacterial product, such as ammonia, is proposed as a significant factor in the pathogenesis of spontaneous corneal opacities in laboratory mice.
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PMID:Spontaneous corneal opacities in laboratory mice. 372 49