title: Age related changes in cartilage matrix--possible mechanism for cartilage unresponsiveness to serum growth factors.
mesh_terms: D000375:Aging; D000818:Animals; D002356:Cartilage / Q000187:drug effects / Q000254:growth & development*; D004247:DNA / Q000378:metabolism; D006133:Growth Substances / Q000097:blood* / Q000494:pharmacology; D008297:Male; D011506:Proteins / Q000378:metabolism; D051381:Rats
chemical_list: D006133:Growth Substances; D011506:Proteins; D004247:DNA