Abstract:
PURPOSE:To determine the effect of triamcinolone acetonide (TA) on outflow facility in mice. METHODS:Animals received 20 μL of TA (40 mg/mL) suspension subconjunctivally either bilaterally or unilaterally and were euthanized after either 1 week or 3 weeks. Before mice were killed, IOP was measured with a rebound tonometer. Outflow facility was determined using simultaneous pressure and flow measurements. Another set of animals received bilateral injection of anecortave acetate (AA) with or without bilateral TA injection and their outflow facility was also determined. Myocilin expression was investigated in a subset of eyes using quantitative PCR (qPCR). RESULTS:Outflow facility of eyes in animals receiving bilateral TA injection (TA(BL)) and TA-treated eyes of animals receiving unilateral injection (TA(UL)) was significantly decreased compared to naïve control eyes (C(naive)) after 1 week and 3 weeks of TA treatment (ANOVA P < 0.01, P < 0.001, respectively). Eyes treated with AA (with or without TA) had higher outflow facility than animals treated with TA (P < 0.05). IOP data did not show any significant difference between groups. qPCR analysis revealed significant decrease in myocilin expression in eyes receiving AA compared to naïve control and TA-treated eyes (ANOVA P < 0.001). CONCLUSIONS:Steroid treatment significantly decreases outflow facility in C57BL/6 mice despite having small effect on IOP. This animal model can be useful for studying the pathogenesis of steroid-induced glaucoma.
journal_name
Invest Ophthalmol Vis Scijournal_title
Investigative ophthalmology & visual scienceauthors
Kumar S,Shah S,Deutsch ER,Tang HM,Danias Jdoi
10.1167/iovs.12-11223subject
Has Abstractpub_date
2013-02-01 00:00:00pages
1280-7issue
2eissn
0146-0404issn
1552-5783pii
iovs.12-11223journal_volume
54pub_type
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journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
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abstract:PURPOSE:Cortical cataract in humans is associated with Ca2+ overload and protein loss, and although animal models of cataract have implicated Ca2+-activated proteases in this process, it remains to be determined whether the human lens responds in this manner to conditions of Ca2+ overload. The purpose of these experime...
journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
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journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
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更新日期:1979-10-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
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doi:
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journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
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doi:
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journal_title:Investigative ophthalmology & visual science
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