| D006961 |
Hyperparathyroidism |
A condition of abnormally elevated output of PARATHYROID HORMONE (or PTH) triggering responses that increase blood CALCIUM. It is characterized by HYPERCALCEMIA and BONE RESORPTION, eventually leading to bone diseases. PRIMARY HYPERPARATHYROIDISM is caused by parathyroid HYPERPLASIA or PARATHYROID NEOPLASMS. SECONDARY HYPERPARATHYROIDISM is increased PTH secretion in response to HYPOCALCEMIA, usually caused by chronic KIDNEY DISEASES. |
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| 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 |
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| D007011 |
Hypoparathyroidism |
A condition caused by a deficiency of PARATHYROID HORMONE (or PTH). It is characterized by HYPOCALCEMIA and hyperphosphatemia. Hypocalcemia leads to TETANY. The acquired form is due to removal or injuries to the PARATHYROID GLANDS. The congenital form is due to mutations of genes, such as TBX1; (see DIGEORGE SYNDROME); CASR encoding CALCIUM-SENSING RECEPTOR; or PTH encoding parathyroid hormone. |
Idiopathic Hypoparathyroidism,Hypoparathyroidism, Idiopathic |
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| D007668 |
Kidney |
Body organ that filters blood for the secretion of URINE and that regulates ion concentrations. |
Kidneys |
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| D007684 |
Kidney Tubules |
Long convoluted tubules in the nephrons. They collect filtrate from blood passing through the KIDNEY GLOMERULUS and process this filtrate into URINE. Each renal tubule consists of a BOWMAN CAPSULE; PROXIMAL KIDNEY TUBULE; LOOP OF HENLE; DISTAL KIDNEY TUBULE; and KIDNEY COLLECTING DUCT leading to the central cavity of the kidney (KIDNEY PELVIS) that connects to the URETER. |
Kidney Tubule,Tubule, Kidney,Tubules, Kidney |
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| D002118 |
Calcium |
A basic element found in nearly all tissues. It is a member of the alkaline earth family of metals with the atomic symbol Ca, atomic number 20, and atomic weight 40. Calcium is the most abundant mineral in the body and combines with phosphorus to form calcium phosphate in the bones and teeth. It is essential for the normal functioning of nerves and muscles and plays a role in blood coagulation (as factor IV) and in many enzymatic processes. |
Coagulation Factor IV,Factor IV,Blood Coagulation Factor IV,Calcium-40,Calcium 40,Factor IV, Coagulation |
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| D006801 |
Humans |
Members of the species Homo sapiens. |
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man |
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| D006934 |
Hypercalcemia |
Abnormally high level of calcium in the blood. |
Milk-Alkali Syndrome,Hypercalcemias,Milk Alkali Syndrome,Syndrome, Milk-Alkali |
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| D044169 |
Receptors, Calcium-Sensing |
A class of G-protein-coupled receptors that react to varying extracellular CALCIUM levels. Calcium-sensing receptors in the PARATHYROID GLANDS play an important role in the maintenance of calcium HOMEOSTASIS by regulating the release of PARATHYROID HORMONE. They differ from INTRACELLULAR CALCIUM-SENSING PROTEINS which sense intracellular calcium levels. |
Calcium-Sensing Receptor,CASR Protein,Ca-Sensing Receptors,Ca2+-Sensing Receptor,Calcium Receptors,Calcium-Sensing Receptor Protein,Calcium-Sensing Receptors,Extracellular Calcium-Ion Sensing Receptor,Parathyroid Calcium-Sensing Receptor,Receptor, Ca-Sensing,Receptors, Calcium,Ca Sensing Receptors,Ca-Sensing Receptor,Ca2+ Sensing Receptor,Calcium Sensing Receptor,Calcium Sensing Receptor Protein,Calcium Sensing Receptors,Calcium-Sensing Receptor, Parathyroid,Extracellular Calcium Ion Sensing Receptor,Parathyroid Calcium Sensing Receptor,Receptor Protein, Calcium-Sensing,Receptor, Ca Sensing,Receptor, Ca2+-Sensing,Receptor, Calcium-Sensing,Receptor, Parathyroid Calcium-Sensing,Receptors, Ca-Sensing,Receptors, Calcium Sensing |
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