May 2005
Volume 46, Issue 13
Free
ARVO Annual Meeting Abstract  |   May 2005
Ocular Reactions During Aspirin Challenge in Aspirin–Exacerbated Respiratory Disease
Author Affiliations & Notes
  • M.H. Friedlaender
    Ophthalmology,
    Scripps Clinic, La Jolla, CA
  • P.K. Mehra
    Allergy,
    Scripps Clinic, La Jolla, CA
  • G. Siuzdak
    Mass Spectrometry Laboratory, The Scripps Research Institute, La Jolla, CA
  • D.D. Stevenson
    Allergy,
    Scripps Clinic, La Jolla, CA
  • Footnotes
    Commercial Relationships  M.H. Friedlaender, None; P.K. Mehra, None; G. Siuzdak, None; D.D. Stevenson, None.
  • Footnotes
    Support  None.
Investigative Ophthalmology & Visual Science May 2005, Vol.46, 943. doi:
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    • Get Citation

      M.H. Friedlaender, P.K. Mehra, G. Siuzdak, D.D. Stevenson; Ocular Reactions During Aspirin Challenge in Aspirin–Exacerbated Respiratory Disease . Invest. Ophthalmol. Vis. Sci. 2005;46(13):943.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Abstract: : Purpose: Clinical grading of ocular reactions during aspirin challenges is problematic. We attempted to objectively evaluate these reactions using new methodology. Methods: Six patients with aspirin–exacerbated respiratory disease (AERD) were studied at baseline and at the time of aspirin challenge using a symptom score, photography, and measurement of conjunctival erythema with spectroradiometry. Tear samples were collected on Schirmer strips and labeled using ProlyticaTM reagent (Stratagene) with either heavy (O18) or light (O16) isotopic tags. LC separation was performed on a laser pulled 100 um ID C18 column. The MS/MS analysis was performed on an Agilent LC/MSD Trap ion mass spectrometer. Results: The ocular rating score showed that from baseline to aspirin reaction, symptoms of itching, burning, and tearing were highly variable and independent of each other. Spectroradiometer measurements in 3/6 patients demonstrated a significant increase in conjunctival erythema. Data obtained from mass spectrometry of tears was searched with Mascot using the NCBInr data base. this resulted in the identification of 10 proteins such as lacrimal proline–rich protein 4, lactoferrin, and prolactin–inducible protein. This proteomics profiling strategy helped identify several proteins that were expressed differentially at baseline and at the time of aspirin challenge. Conclusions: The ocular reactions during aspirin challenge are clinically variable and molecularly complex. Protein profiling of tears provides quantitative characterization of protein expression in AERD.

Keywords: proteomics • inflammation • conjunctivitis 
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