| http://www.w3.org/ns/prov#value | - The vitreous core contains collagens II, V, IX, and XI, along with chondroitin sulphate proteoglycans, heparan sulphate proteoglycans, and hyaluronan.1,2 Protein biomarkers in the vitreous core have been associated with diseases such as diabetic retinopathy.3-5 How these proteins are differentially expressed in each of the substructures, and in many cases the specific protein identities, are not k
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