当前位置： SCI文献检索 > ACTA OPHTHALMOLOGICA期刊下所有文献 > Low intravitreal angiopoietin-2 and VEGF levels in vitrectomized diabetic patients with simvastatin treatment.

Low intravitreal angiopoietin-2 and VEGF levels in vitrectomized diabetic patients with simvastatin treatment.

Abstract：

PURPOSE:To investigate the intravitreal levels of potent vasoactive, angiogenic and extracellular matrix remodelling factors in the diabetic patients with simvastatin treatment. METHODS:This is an institutional, prospective, observational case-control study. Type-1 and type-2 diabetic patients on lipophilic simvastatin (N = 14) compared with patients without statin medication (N = 50). Vitreous samples were subjected to protein measurements of angiopoietin (Ang)-1 and Ang-2, erythropoietin (EPO), transforming growth factor (TGF)-β1, vascular endothelial growth factor (VEGF) by ELISA and matrix metalloproteinase (MMP)-2 and MMP-9 by gelatin zymography. RESULTS:Intravitreal levels of Ang-2 (p = 0.029), VEGF (p = 0.001) and proMMP-9 (p = 0.015) were lower in simvastatin-treated than in non-statin-treated controls. In diabetics with macular oedema (DME), intravitreal Ang-2 (p = 0.006) and VEGF (p = 0.002) levels were lower in simvastatin-treated patients compared with non-statin-treated controls. In those patients with proliferative diabetic retinopathy (PDR), intravitreal Ang-2 (p = 0.002), TGF-β1 (p = 0.037), VEGF (p = 0.001) and pro- and totalMMP-9 (p = 0.004 and p = 0.007) levels were lower when receiving simvastatin medication. CONCLUSIONS:In diabetic patients with DME or PDR, the intravitreal levels of permeability and proangiogenic factors Ang-2 and VEGF were lower in simvastatin-treated than in those without statin medication. Moreover, the levels of MMP-9 and TGF-β1, factors involved in the breakdown of basement membrane and fibroproliferation, were lower in patients with PDR having simvastatin medication. When acetylsalicylic acid was combined with simvastatin treatment, the intraocular levels of Ang-2 and VEGF were significantly lower than in diabetics treated with simvastatin alone. These data provide a novel insight into the potential protective mechanisms underlying simvastatin medication in patients with diabetic retinopathy complications.

journal_name

Acta Ophthalmol

journal_title

Acta ophthalmologica

authors

Tuuminen R,Sahanne S,Loukovaara S

doi

10.1111/aos.12363

subject

Has Abstract

pub_date

2014-11-01 00:00:00

pages

675-81

issue

eissn

1755-375X

issn

1755-3768

journal_volume

pub_type

杂志文章

在线工具

Low intravitreal angiopoietin-2 and VEGF levels in vitrectomized diabetic patients with simvastatin treatment.