title: Regulation of parathyroid hormone secretion: proportional control by calcium, lack of effect of phosphate.
mesh_terms: D000818:Animals; D002118:Calcium / Q000097:blood / Q000502:physiology*; D002417:Cattle; D004492:Edetic Acid; D006996:Hypocalcemia / Q000139:chemically induced / Q000503:physiopathology; D010280:Parathyroid Glands / Q000378:metabolism*; D010281:Parathyroid Hormone / Q000097:blood / Q000378:metabolism*; D010710:Phosphates; D011863:Radioimmunoassay; D012636:Secretory Rate; D013997:Time Factors
chemical_list: D010281:Parathyroid Hormone; D010710:Phosphates; D004492:Edetic Acid; D002118:Calcium