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      Fibrinogen-induced Vitreous Membranes

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          Abstract

          Fibrinogen was injected in the vitreous cavity of 29 rabbits with follow-up for 75 days. Vitreous membrane formation was detected by indirect ophthalmoscopy and confirmed by histopathological study. Membrane formation was significantly more common in the fibrinogen group than in the control group. Fifteen days after injection, the membranes decreased in size and gave place to vitreous liquefaction in the majority of eyes in the fibrinogen group. Histochemical stains for fibrinogen were positive in half of the vitreous membranes. Fibrinogen is thought to be transformed into a long fibrin polymer forming a matrix for surrounding cells to proliferate in the vitreous. An effective fibrinolytic system in the vitreous explains the ultimate resolution of most of the fibrinogen-induced membranes. Simple fibrinogen injections do not provide a good model for long-term vitreous band formation, yet they add more evidence to the role of fibrin in the pathogenesis of vitreoproliferative diseases. The spontaneous resolution of some proliferative vitreoretinopathies parallels the reversibility of most of the fibrinogen-induced vitreous membranes.

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          Author and article information

          Journal
          ORE
          Ophthalmic Res
          10.1159/issn.0030-3747
          Ophthalmic Research
          S. Karger AG
          0030-3747
          1423-0259
          1987
          1987
          04 December 2009
          : 19
          : 3
          : 164-169
          Affiliations
          Department of Ophthalmology, Montefiore Medical Center/Albert Einstein College of Medicine, New York, N.Y., USA
          Article
          265489 Ophthalmic Res 1987;19:164–169
          10.1159/000265489
          3658327
          © 1987 S. Karger AG, Basel

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          Page count
          Pages: 6
          Categories
          Original Paper

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