{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,21]],"date-time":"2026-10-21T08:46:47Z","timestamp":1792572407192,"version":"4.5.0"},"reference-count":42,"publisher":"SAGE Publications","issue":"4","license":[{"start":{"date-parts":[[1996,10,1]],"date-time":"1996-10-01T00:00:00Z","timestamp":844128000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["European Journal of Ophthalmology"],"published-print":{"date-parts":[[1996,10]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose.<\/jats:title>\n                    <jats:p>To characterize the morphological changes in the eyes of transgenic mice harboring different mutations in type II collagen gene to elucidate the function of this collagen in the eye, and to find out whether these animals could function as models for the human arthro-ophthalmopathies of the Kniest, Stickler and Wagner types.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods.<\/jats:title>\n                    <jats:p>Three genetically engineered mouse lines representing two types of mutations in the triple-helical domain of type II collagen and their nontransgenic littermates used as controls were analyzed on day 18.5 of embryonic development. After genotyping by polymerase chain reaction (PCR) and Southern hybridization the embryos were prepared for routine histology. Polarization microscopy was done on hyaluronidase-treated sections.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results.<\/jats:title>\n                    <jats:p>Histological analysis revealed several genotype-dependent abnormalities in the eyes of the transgenic mice. Most striking changes were observed in the vitreous architecture; in one line of mice the vitreous was tightly packed in the posterior region of the vitreous space with thick fibrils, empty cavities and dense membrane-like material. The other mutation resulted in reduced filament density of the vitreous. In the most severely affected phenotype the internal limiting membrane was detached from the retinal layers and was markedly thickened, and the posterior lens capsule was thickened. The anterior chamber was shallow or absent in all transgenic lines but was well formed in the normal animals. Changes were also observed in the lens, corneal and scleral structures.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions.<\/jats:title>\n                    <jats:p>The ocular changes observed in transgenic mice harboring mutations in type II collagen gene show similarities to the human ocular findings in Kniest dysplasia, and in Stickler and Wagner syndromes. We therefore propose that these animals could serve as models for systematic analysis of vitreoretinal degeneration and other abnormalities, as seen in these syndromes.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/112067219600600415","type":"journal-article","created":{"date-parts":[[2018,4,16]],"date-time":"2018-04-16T11:16:06Z","timestamp":1523877366000},"page":"427-435","source":"Crossref","is-referenced-by-count":12,"title":["Ocular Abnormalities in Transgenic Mice Harboring Mutations in the Type Ii Collagen Gene"],"prefix":"10.1177","volume":"6","author":[{"given":"T.","family":"Ihanam\u00e4ki","sequence":"first","affiliation":[{"name":"University of Turku, Department of Ophthalmology, Turku"},{"name":"Departments of Medical Biochemistry and Molecular Biology, Turku"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M.","family":"Mets\u00e4ranta","sequence":"additional","affiliation":[{"name":"Departments of Medical Biochemistry and Molecular Biology, 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