Document Detail


Krill protease effects on wound healing after corneal alkali burn.
MedLine Citation:
PMID:  10571303     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: To study the effect of a novel protease in the development and progression of corneal ulceration secondary to alkali burning. METHODS: By using a 4N alkali burn model of corneal ulceration in rabbits, the effects and efficacy of topical application of a novel protease (PHM-101) capable of degrading metalloproteinases was studied for 28 days of treatment and 7 days off treatment for its effect on corneal ulceration and recurrent erosion. RESULTS: At day 28, both the protease- and placebo-treated groups had different numbers of eyes showing reepithelialization (nine (45%) of 20 and six (33%) of 18, respectively]. By day 35 the protease-treated group had significantly fewer recurrent epithelial defects [two (13%) of 15 vs. eight (61%) of 13; p = 0.02]. Similarly, at day 35 the protease-treated group showed significantly less corneal ulceration [two (13%) of 15 vs. six (46%) of 13; p = 0.02], and those ulcers were of a lesser severity (three units vs. 17.76 units). No difference was found in the degree of stromal edema or neovascularization, nor was there any difference in histopathologic characteristics of inflammatory cell infiltration and corneal scarring. CONCLUSION: We conclude that this novel protease is efficient in reducing recurrent corneal epithelial defects and stromal ulceration after alkali burning.
Authors:
V S Sangwan; E K Akpek; I Voo; T Zhao; V Pinar; J Yang; W Christen; S Baltatzis; R Wild; C S Foster
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Cornea     Volume:  18     ISSN:  0277-3740     ISO Abbreviation:  Cornea     Publication Date:  1999 Nov 
Date Detail:
Created Date:  1999-12-21     Completed Date:  1999-12-21     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  8216186     Medline TA:  Cornea     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  707-11     Citation Subset:  IM    
Affiliation:
Department of Ophthalmology, Harvard Medical School, Massachusetts Eye and Ear Infirmary, Boston 02114, USA.
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MeSH Terms
Descriptor/Qualifier:
Alkalies*
Animals
Burns, Chemical / physiopathology*
Cornea / drug effects,  injuries*
Corneal Ulcer / etiology,  prevention & control
Endopeptidases / pharmacology*
Epithelium, Corneal / growth & development
Eye Burns / chemically induced,  physiopathology*
Rabbits
Wound Healing / drug effects*
Chemical
Reg. No./Substance:
0/Alkalies; EC 3.4.-/Endopeptidases

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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