Kim S, Park YW, Lee E, Park SW, Park S, Noh H, Kim JW, Seong JK, Seo K. Effect of onion extract on corneal haze suppression after air assisted lamellar keratectomy.
J Vet Med Sci 2015;
78:419-25. [PMID:
26607134 PMCID:
PMC4829509 DOI:
10.1292/jvms.15-0455]
[Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
This study evaluated the effect of onion extract on corneal haze suppression
after applying the air assisted lamellar keratectomy. The air assisted lamellar
keratectomy was performed on 24 canine eyes. They were treated with an artificial tear
(group C), prednisolone acetate (group P), onion extract (group O) and TGF-β1 (group T)
three times per day from 7 to 28 days after the surgery. Corneal haze occurred on the all
eyes and was observed beginning 7 days after the surgery. The haze was significantly
decreased in groups P and O from day 14 compared with the group C using the clinical
(group P; P=0.021, group O; P=0.037) and objective
evaluation method (group P; P=0.021, group O; P=0.039).
In contrast, it was significantly increased in group T from day 14 compared with group C
based on the clinical (P=0.002) and objective evaluation method
(P<0.001). Subsequently, these eyes were enucleated after
euthanasia, and immunohistochemistry with α-SMA antibodies was done. The total green
intensity for α-SMA was significantly more expressed in group T and significantly less
expressed in groups P and O than in group C. Onion extract could have potential as a
therapeutic in preventing corneal haze development by suppressing the differentiation of
fibroblasts into myofibroblasts.
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