Endophthalmitis is one of the most sight-threatening complications of ocular surgery or penetrating injury. Despite aggressive therapeutic and surgical intervention, endophthalmitis frequently results in partial to complete loss of vision, often within a few days of infection. The overarching goal of this research is to develop a scientific basis for management of endophthalmitis, based on the optimized use of antimicrobial and anti-inflammatory agents, toward enhancing the recovery of useful vision. The following specific aims of the proposed 5 year continuation period are designed, based on the results from the previous period of support, to advance this goal:
Specific Aim 1 : Determine the molecular basis of virulence for the most common etiology of endophthalmitis associated with visual loss.
Specific Aim 2 : Develop a murine model system that permits complete analysis of host and bacterial factors that contribute to the pathogenesis of endophthalmitis, and determine the basis for 1) differences in pathogenesis of endophthalmitis due to virulent and avirulent organisms, 2) differences in the pathogenesis of endophthalmitis when infection is acquired by anterior and posterior routes, and 3) the contribution of immune privilege to the pathogenesis of endophthalmitis and mechanisms by which this may be undermined by specific pathogens.
Specific Aim 3 : Resolve the current controversy surrounding the use of anti-inflammatory adjunctive therapies in endophthalmitis management, and test new specifically targeted therapies for their value in mitigating visual loss.

Agency
National Institute of Health (NIH)
Institute
National Eye Institute (NEI)
Type
Research Project (R01)
Project #
5R01EY008289-15
Application #
6652650
Study Section
Visual Sciences A Study Section (VISA)
Program Officer
Shen, Grace L
Project Start
1989-08-01
Project End
2004-08-31
Budget Start
2003-09-30
Budget End
2004-08-31
Support Year
15
Fiscal Year
2003
Total Cost
$218,250
Indirect Cost
Name
University of Oklahoma Health Sciences Center
Department
Microbiology/Immun/Virology
Type
Schools of Medicine
DUNS #
878648294
City
Oklahoma City
State
OK
Country
United States
Zip Code
73117
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Whiston, Emily A; Sugi, Norito; Kamradt, Merideth C et al. (2008) alphaB-crystallin protects retinal tissue during Staphylococcus aureus-induced endophthalmitis. Infect Immun 76:1781-90

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