title: TSH, theophylline and cyclic AMP: in vitro thyroid activity in aging rats.
mesh_terms: D000375:Aging; D000818:Animals; D000242:Cyclic AMP / Q000378:metabolism / Q000494:pharmacology*; D066298:In Vitro Techniques; D008297:Male; D051381:Rats; D013806:Theophylline / Q000494:pharmacology*; D013961:Thyroid Gland / Q000187:drug effects* / Q000502:physiology; D013972:Thyrotropin / Q000494:pharmacology*; D013974:Thyroxine / Q000097:blood / Q000378:metabolism; D014284:Triiodothyronine / Q000097:blood / Q000378:metabolism
chemical_list: D014284:Triiodothyronine; D013972:Thyrotropin; D013806:Theophylline; D000242:Cyclic AMP; D013974:Thyroxine