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Case Western Reserve awarded $1.57M for corneal infection research
Date:10/7/2009

Researchers at Case Western Reserve University School of Medicine have been awarded a $1.57 million renewal grant from the National Eye Institute (NEI) of the National Institutes of Health to continue their study of corneal infections, specifically, bacterial keratitis, associated with contact lens wear. The grant will extend the work initiated last year with the receipt of a $2.4 million, five-year grant from the NEI.

The funding will support for four years the work of Eric Pearlman, Ph.D., professor and research director in the Department of Ophthalmology and Visual Sciences, as well as two postdoctoral investigators and one student working toward a Ph.D. The researchers hope to discover specific toll-like receptor (TLR) antagonists to regulate corneal inflammation, which could lead to the development of novel anti-inflammatory medications that could serve as alternatives to steroids to treat the infections.

Bacterial keratitis is a serious cause of visual impairment not only in the United States but also worldwide, and contact lens wear is a major risk factor for the infection in the cornea, the clear covering over the front part of the eye.

"Organisms can infiltrate an intact cornea of a lens-wearer, and a biofilm can form on the contact lens," Dr. Pearlman says. Although correctly performed cleaning of contact lenses can remove the biofilm, or aggregation of micro-organisms, he adds, "When one considers that 34 million people in the United States and about 140 million people worldwide wear contact lenses, even a low percentage of side effects translates into a large number of affected individuals."

The TLR family of pathogen recognition molecules plays a critical role in recognizing and responding to pathogens in the body, initiating anti-microbial inflammatory responses to them that often result in damage to tissue. In the absence of live bacteria, TLRs also respond to microbial products and can induce an inflammatory
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Contact: Jessica Studeny
jessica.studeny@case.edu
216-368-4692
Case Western Reserve University
Source:Eurekalert

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