期刊
ARCHIVES OF OPHTHALMOLOGY
卷 126, 期 2, 页码 219-225出版社
AMER MEDICAL ASSOC
DOI: 10.1001/archophthalmol.2007.61
关键词
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资金
- NEI NIH HHS [K23 EY000365-04, K23 EY000365-05] Funding Source: Medline
Objective: To study the efficacy of topical application of alpha-linolenic acid (ALA) and linoleic acid (LA) for dry eye treatment. Methods: Formulations containing ALA, LA, combined ALA and LA, or vehicle alone, were applied to dry eyes induced in mice. Corneal fluorescein staining and the number and maturation of corneal CD11b(+) cells were determined by a masked observer in the different treatment groups. Real-time polymerase chain reaction was used to quantify expression of inflammatory cytokines in the cornea and conjunctiva. Results: Dry eye induction significantly increased corneal fluorescein staining; CD11b(+) cell number and major histocompatibility complex Class II expression; corneal IL-1 alpha and tumor necrosis factor alpha (TNF-alpha) expression; and conjunctival IL-1 alpha, TNF-alpha, interferon gamma, IL-2, IL- and IL-10 expression. Treatment with ALA significantly decreased corneal fluorescein staining compared with both vehicle and untreated controls. Additionally, ALA treatment was associated with a significant decrease in CD11b(+) cell number, expression of corneal IL-1 alpha and TNF-alpha, and conjunctival TNF-alpha. Conclusions: Topical ALA treatment led to a significant decrease in dry eye signs and inflammatory changes at both cellular and molecular levels. Clinical Relevance: Topical application of ALA omega-3 fatty acid may be a novel therapy to treat the clinical signs and inflammatory changes accompanying dry eye syndrome.
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