PURPOSE . Peroxynitrite is a highly potent reactive oxygen/nitrogen species present in the environment and also endogenously in the eye, that causes a variety of disorders. This study was undertaken to look at the oxidative damage that peroxynitrite causes to the proteins of the lens and the functional consequences thereof. METHODS . Peroxynitrite was allowed to react with alpha-, beta-, and ...

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The cysteine residues of the gamma crystallins, a family of ocular lens proteins, are involved in the aggregation and phase separation of these proteins. Both these phenomena are implicated in cataract formation. We have used bovine gammaB crystallin as a model system to study the role of the individual cysteine residues in the aggregation and phase separation of the gamma crystallins. Here, we...

Purpose Anti-crystallin autoantibodies have been often demonstrated in patients with cataract but only few studies point out on autoantibodies directed against the different crystallin classes. Our aim was to determmr the prevalence of antI-a-, anti-p, or antI-7 crystalho autoantibodIes m sera from 54 patients with lugh level of anti-total lens extract antibodies in comparison to control group ...

PURPOSE Development in marsupials takes place predominantly ex utero while the young is attached to a nipple in the mother's pouch, very different from that in other species. This study was undertaken to examine whether this affects lens growth and the production of lens proteins in kangaroos. METHODS Fresh lenses were obtained at official culls from eastern gray kangaroos (Macropus giganteus...

PURPOSE To investigate changes in protein profiles of posterior sclera in guinea pigs during development of form deprivation myopia and recovery. METHODS Three groups of guinea pigs (developing form deprivation myopia, recovering from the myopia and normal control) were evaluated for protein profiles of the posterior sclera using two-dimensional gel electrophoresis. Protein spots with a diffe...

Purpose Anti-crystallin autoantibodies have been often demonstrated in patients with cataract but only few studies point out on autoantibodies directed against the different crystallin classes. Our aim was to determmr the prevalence of antI-a-, anti-p, or antI-7 crystalho autoantibodIes m sera from 54 patients with lugh level of anti-total lens extract antibodies in comparison to control group ...