title: Young and old rats. ATP, alkaline phosphatase, cholesterol and protein levels in the blood; DNA and RNA contents of the liver, regulation by an aqueous thymus extract.
mesh_terms: D000255:Adenosine Triphosphate / Q000097:blood; D000375:Aging; D000469:Alkaline Phosphatase / Q000097:blood; D000818:Animals; D001798:Blood Proteins / Q000032:analysis; D002784:Cholesterol / Q000097:blood; D004247:DNA / Q000378:metabolism; D008099:Liver / Q000187:drug effects / Q000378:metabolism*; D012313:RNA / Q000378:metabolism; D051381:Rats; D013950:Thymus Gland / Q000502:physiology*; D014020:Tissue Extracts / Q000494:pharmacology*
chemical_list: D001798:Blood Proteins; D014020:Tissue Extracts; D012313:RNA; D000255:Adenosine Triphosphate; D004247:DNA; D002784:Cholesterol; D000469:Alkaline Phosphatase