Ontology type: schema:ScholarlyArticle Open Access: True
2018-01-24
AUTHORSKatsuhiko Shinomiya, Mayumi Ueta, Shigeru Kinoshita
ABSTRACTChronic dry eye is an increasingly prevalent condition worldwide, with resulting loss of visual function and quality of life. Relevant, repeatable, and stable animal models of dry eye are still needed. We have developed an improved surgical mouse model for dry eye based on severe aqueous fluid deficiency, by excising both the exorbital and intraorbital lacrimal glands (ELG and ILG, respectively) of mice. After ELG plus ILG excision, dry eye symptoms were evaluated using fluorescein infiltration observation, tear production measurement, and histological evaluation of ocular surface. Tear production in the model mice was significantly decreased compared with the controls. The corneal fluorescein infiltration score of the model mice was also significantly increased compared with the controls. Histological examination revealed significant severe inflammatory changes in the cornea, conjunctiva or meibomian glands of the model mice after surgery. In the observation of LysM-eGFP(+/−) mice tissues, postsurgical infiltration of green fluorescent neutrophils was observed in the ocular surface tissues. We theorize that the inflammatory changes on the ocular surface of this model were induced secondarily by persistent severe tear reduction. The mouse model will be useful for investigations of both pathophysiology as well as new therapies for tear-volume-reduction type dry eye. More... »
PAGES1483
http://scigraph.springernature.com/pub.10.1038/s41598-018-19578-6
DOIhttp://dx.doi.org/10.1038/s41598-018-19578-6
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PUBMEDhttps://www.ncbi.nlm.nih.gov/pubmed/29367638
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