![]() ![]() While doctors know what it does, they do not understand why we have it, and few symptoms occur if levels are high or low. What can go wrong with calcitonin?Ĭalcitonin is a unique hormone, because its importance is not well known. When calcium levels drop, so do calcitonin levels. ![]() When the levels start to increase, the body responds with increased calcitonin levels. Secretion of this hormone is controlled directly by the blood’s calcium levels. The hormone also seems to decrease the amount of calcium the kidneys can re-absorb, lowering levels further. By preventing the breakdown of bone, calcitonin lessens the amount of calcium in the blood. When the osteoclasts break down bone tissue, the calcium enters the bloodstream. It does this by inhibiting the activity of the osteoclasts, the cells that break down bone. Calcitonin works to control calcium and potassium levels. It opposes the action of the parathyroid hormone, helping to regulate the blood’s calcium and phosphate levels. Calcitonin is a hormone that the C-cells in the thyroid gland produce and release. ![]()
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