Parathyroid hormone (Parathyroid Hormone), Parathormone (Parathormone)

Parathyroid Hormone, also called Parathormone, is a hormone that is synthesized and produced by the parathyroid glands. It plays an important role in regulating calcium and phosphorus levels in the human body.

With an increased level of parathyroid hormone in the blood, calcium is washed out of the bone tissue into the bloodstream. This leads to an increase in calcium concentration in the blood.

On the contrary, parathyroid hormone deficiency leads to a decrease in calcium levels in the blood, which can cause the development of tetany - a pathological muscle spasm. Parathyroid hormone injections are used to treat this condition.

Another hormone that regulates calcium metabolism in the body is thyrocalcitonin, produced by the thyroid gland. Unlike Parathyroid hormone, it reduces the concentration of calcium in the blood.



Parathyroid hormone, also known as parathyroid hormone, is one of the most important regulators of calcium levels in the body. It is produced by the parathyroid glands and is responsible for maintaining the balance between calcium and phosphorus levels.

Parathyroid hormone plays an important role in the metabolism of calcium and phosphorus, as it controls the level of calcium in the blood. When parathyroid hormone levels rise, it causes calcium to be washed out of the bones and into the blood. This helps maintain normal calcium levels in the body, especially during bone growth in children and adolescents.

However, if parathyroid hormone levels decrease, it can lead to the development of tetany, a condition in which calcium levels in the blood decrease, which can cause seizures and other symptoms.

To treat tetany, injections of parathyroid hormone are used, which helps replenish calcium deficiency. However, before starting treatment, it is necessary to conduct a blood test for parathyroid hormone and calcium levels in order to determine the exact dosage of the drug.

Thus, parathyroid hormone plays an important role in regulating calcium and phosphorus levels in the body and can be used to treat tetany when prescribed correctly.



Parathyroid Hormone, also known as Parathormone, plays an important role in regulating calcium and phosphorus levels in the body. This hormone is synthesized and produced by the parathyroid glands, which are located next to the thyroid gland in the cervical region.

The main function of parathyroid hormone is to maintain calcium homeostasis in the blood. When calcium levels in the blood decrease, the parathyroid glands stimulate the release of parathyroid hormone. This hormone acts on bone tissue and kidneys to increase calcium levels in the blood.

The effect of Parathyroid Hormone on the kidneys is to stimulate the reabsorption (re-absorption) of calcium in the renal tubules. This allows calcium that passes through the kidneys to be used more efficiently and prevents unnecessary loss of calcium through urine. Parathyroid hormone also stimulates the excretion of phosphorus in the urine, which increases its level in the blood.

In addition, Parathyroid hormone affects bone tissue. It activates cells called osteoblasts, which help release calcium from the bones into the blood. This process is called bone resorption. When calcium levels in the blood rise, the parathyroid glands reduce the release of parathyroid hormone, which helps maintain calcium balance in the body.

However, when parathyroid hormone is released in excess, hyperparathyroidism can occur, a condition in which calcium levels in the blood rise to abnormally high levels. This can lead to a variety of problems, including the formation of kidney stones, weakened bones (osteoporosis), and damage to organs such as the heart and kidneys.

On the other hand, parathyroid hormone deficiency can cause hypoparathyroidism, which leads to decreased calcium levels in the blood. This condition can manifest as muscle cramps, numbness around the mouth and fingers, and abnormal heart rhythms. Treatment for hypoparathyroidism may include administration of synthetic parathyroid hormone or taking calcium and vitamin D supplements.

It is important to note that parathyroid hormone works by interacting with another hormone called thyrocalcitonin, which is produced by the thyroid gland. Thyroid calcitonin has the opposite effect on blood calcium levels compared to parathyroid hormone. Calcitonin lowers blood calcium levels by increasing its deposition in bones and decreasing its absorption in the kidneys.

Both hormones, parathyroid hormone and thyrocalcitonin, play an important role in maintaining calcium balance in the body. Their interaction and mutual regulation help ensure optimal calcium levels necessary for many vital processes, including nervous system function, muscle contraction, blood clotting and bone health.

In conclusion, Parathyroid Hormone, also known as Parathyroid Hormone, is an important hormone responsible for regulating calcium and phosphorus levels in the body. It affects bones and kidneys, helping to maintain calcium balance in the blood. Disturbances in the function of parathyroid hormone can lead to various diseases associated with impaired calcium metabolism, so it is important to ensure its normal function and maintain a balance between parathyroid hormone and other hormones, such as thyrocalcitonin.