Biomaterial Database

Mithramycin effects on calcium, phosphorus and parathyroid hormone in osseous Paget's disease. 1975

K Ajlouni, and G B Theil

Six patients with symptomatic osseous Paget's disease were treated with a four-day course of mithramycin (25 mug/kg/day). The effects of treatment on the plasma calcium, phosphorus, parathyroid hormone, and the urinary fractional clearance of calcium and phosphorus were studied. Mithramycin produced significant hypocalcemia and hypophosphatemia, and also significantly and simultaneously increased the plasma parathyroid hormone concentration. Despite the increase in parathyroid hormone, the hypocalemia persisted because of the probable blocking effect which mithramycin exerted on the osteoclasts. The physiological response of the kidney to the elevated plasma parathyroid hormone appeared to be well preserved, as evidenced by the decreased fractional excretion of calcium and the increased fractional excretion of phosphorus in the urine; however, the fall in the clearance of calcium could be the result of the decreased filtered load.

UI	MeSH Term	Description	Entries
D006996	Hypocalcemia	Reduction of the blood calcium below normal. Manifestations include hyperactive deep tendon reflexes, Chvostek's sign, muscle and abdominal cramps, and carpopedal spasm. (Dorland, 27th ed)	Hypocalcemias
D007668	Kidney	Body organ that filters blood for the secretion of URINE and that regulates ion concentrations.	Kidneys
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D008926	Plicamycin	A tricyclic pentaglycosidic antibiotic from Streptomyces strains that inhibits RNA and protein synthesis by adhering to DNA. It is used as a fluorescent dye and as an antineoplastic agent, especially in bone and testicular tumors. Plicamycin is also used to reduce hypercalcemia, especially that due to malignancies.	Aureolic Acid,Mithramycin,Mitramycin
D010001	Osteitis Deformans	A disease marked by repeated episodes of increased bone resorption followed by excessive attempts at repair, resulting in weakened, deformed bones of increased mass. The resultant architecture of the bone assumes a mosaic pattern in which the fibers take on a haphazard pattern instead of the normal parallel symmetry.	Paget's Disease of Bone,Osseous Paget's Disease,Paget Disease of Bone,Paget Disease, Bone,Pagets Disease, Bone
D010010	Osteoclasts	A large multinuclear cell associated with the BONE RESORPTION. An odontoclast, also called cementoclast, is cytomorphologically the same as an osteoclast and is involved in CEMENTUM resorption.	Odontoclasts,Cementoclast,Cementoclasts,Odontoclast,Osteoclast
D010281	Parathyroid Hormone	A polypeptide hormone (84 amino acid residues) secreted by the PARATHYROID GLANDS which performs the essential role of maintaining intracellular CALCIUM levels in the body. Parathyroid hormone increases intracellular calcium by promoting the release of CALCIUM from BONE, increases the intestinal absorption of calcium, increases the renal tubular reabsorption of calcium, and increases the renal excretion of phosphates.	Natpara,PTH (1-84),PTH(1-34),Parathormone,Parathyrin,Parathyroid Hormone (1-34),Parathyroid Hormone (1-84),Parathyroid Hormone Peptide (1-34),Hormone, Parathyroid
D010710	Phosphates	Inorganic salts of phosphoric acid.	Inorganic Phosphate,Phosphates, Inorganic,Inorganic Phosphates,Orthophosphate,Phosphate,Phosphate, Inorganic
D010758	Phosphorus	A non-metal element that has the atomic symbol P, atomic number 15, and atomic weight 31. It is an essential element that takes part in a broad variety of biochemical reactions.	Black Phosphorus,Phosphorus-31,Red Phosphorus,White Phosphorus,Yellow Phosphorus,Phosphorus 31,Phosphorus, Black,Phosphorus, Red,Phosphorus, White,Phosphorus, Yellow