6305
To clarify the cause of age differences on selenite cataract formation in rats , mRNA expression of GPx1 , MsrA and MsrB1 , as well as GPx activity in Wistar rat lens at different ages were assayed , level of lipid peroxidation , extent of lens damage induced by sodium selenite and barricade function of blood - retinal barrier ( BRB ) were investigated .
 Chemical: selenite; Chemical: sodium selenite
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: selenite; Chemical: sodium selenite