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Doctor insights on: How Calcitonin And Parathyroid Hormones Maintain Calcium Levels In The Body

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What hormones cause calcitonin and parathyroid hormone to be released? I know blood ca level has to do with it, but what hormones cause their release?

What hormones cause calcitonin and parathyroid hormone to be released? I know blood ca level has to do with it, but what hormones cause their release?

No hormones: Parathyroid hormone is released as a response to your calcium level (low calcium causes increased PTH). It is not regulated by any particular hormones. Calcitonin is a hormone that has no obvious function in humans (as opposed to fish). It is made in the thyroid gland, but people who have had their thyroid removed do not need calcitonin to remain normal. ...Read more

Dr. Ira Katz
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Hormone (Definition)

A hormone (from greek ὁρμή, "impetus") is a chemical released by a cell or a gland in one part of the body that sends out messages that affect cells in other parts of the organism. Only a little amount of hormone is required to alter cell metabolism. In essence, it is a chemical messenger that transports a signal from ...Read more


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Are there any books or types of books I can read about how calcitriol, calcitonin, and parathyroid hormone work together?

Wikipedia: You seem to have a lot of questions on this topic. I have found that Wikipedia is a good source for information. You could search under "calcium homeostasis", as well as Vitamin D, parathyroid hormone and calcitonin to gain a better understanding on how these hormones work together to control your calcium level. ...Read more

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How does parathyroid hormone lower calcium levels?

How does parathyroid hormone lower calcium levels?

Parathyroid hormone: Normal parathyroid hormone levels does not lower calcium levels. A low parathyroid level will lower calcium. A low calcium may increase parathyroid levels. Please discuss further with your doctor. ...Read more

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If the body has enough calcium in it will it still release the parathyroid hormone?

If the body has enough calcium in it will it still release the parathyroid hormone?

Yes: Pth levels may be lower when serum calcium is very adequate, but without PTH the body cannot maintain the homeostasis. Pth is needed to make active vitamin d which helps the gut absorb calcium and phosphorus. Pth also regulates the balance between calcium and phos among other important things. ...Read more

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My calcium level 10.6 parathyroid hormone 123 age 44 is thing normal?

My calcium level 10.6 parathyroid hormone 123 age 44 is thing normal?

Hyperparathyroid: This is not normal. A 24 hour urine calcium could be done and then you should see an endocrine surgeon who specializes in treating hyperparathyroidism. They can decide if you need a scan and which one prior to surgery. ...Read more

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How are calcium blood levels affected by increased amounts of parathyroid hormone?

How are calcium blood levels affected by increased amounts of parathyroid hormone?

Hyperparathyroidism: The parathyroids make a hormone, PTH, which mobilizes calcium from your bones and keeps blood calcium normal. Overactive parathyroids make too much PTH, raising blood Ca, and leeching Ca out of your bones (Osteoporosis) and too much gets into kidney (kidney stones). Kidney disease can cause this, but often it is from an abnormal parathyroid gland that must be removed surgically. ...Read more

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High levels of calcium in my blood and my parathyroid hormone is off. Is this cancer.?

High levels of calcium in my blood and my parathyroid hormone is off. Is this cancer.?

Not necessarily: Primary hyperparathyroidism and malignancy are the most common causes of increase serum calcium , accounting for more than 90 percent of cases. There are ways to differentiate one to the other ( check intact pth, PTH related peptide etc) . You should see your doctor and have further blood work-up and discussion in management of the problem. ...Read more

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High levels of calcium in my blood and my parathyroid hormone is -3. Is this symptoms of cancer.?

High levels of calcium in my blood and my parathyroid hormone is -3. Is this symptoms of cancer.?

Many causes: There are many causes of high serum calcium. In your case it is not due to hyperactivity of parathyroid gland but it is not feasible to say why your calcium is high without additional information. See this site for more info on this subject. http://www.mayoclinic.com/health/hypercalcemia/ds00976/dsection=causes. ...Read more

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When blood calcium level drops, what is the change on the level of parathyroid hormone?

When blood calcium level drops, what is the change on the level of parathyroid hormone?

Hormone increases.: In people with normal parathyroid gland function a decrease in blodd calcium produces an immediate increase in parathyroid hormone in order to restore the blood calcium to normal. ...Read more

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My cousin has low vitamin d, high calcium levels, but has normal parathyroid hormone levels. What could cause this? Doesn't make sense to me.

My cousin has low vitamin d, high calcium levels, but has normal parathyroid hormone levels.  What could cause this?  Doesn't make sense to me.

many possiblities: While hyperparathyroidism is by far the most common cause of elevated serum calcium, there are many other possible causes. Hopefully your cousin does not have cancer, the next most common cause, but there are still many other possibilities. It is important for your cousin to see a good doctor to find the cause. See http://www.Mayoclinic.Com/health/hypercalcemia/ds00976/dsection=causes. ...Read more

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What vitamins in a persons body can affect breathing.Muscles if calcium and magnesium are good but have elevated parathyroid hormone?

What vitamins in a persons body can affect  breathing.Muscles if calcium and magnesium are good but have elevated parathyroid hormone?

Whoa: Your breathing muscles need no special vitamins beyond what you'll get with a halfway reasonable diet. What concerns me is your having an elevated parathyroid hormone. Either you have a parathyroid adenoma / hyperplasia which is really serious, or you are vitamin d deficient. You need to address this. You'll feel much better. Again, please forgive my frankness & do right by yourself. ...Read more

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Urologist sent me for tests because of kidney stones. Parathyroid hormone level is at 85.8. Calcium in blood is 8.6. What does this mean?

Urologist sent me for tests because of kidney stones. Parathyroid hormone level is at 85.8. Calcium in blood is 8.6. What does this mean?

Kidney stones: I am a little surprised that you have kidney stones with the numbers you present. Calcium is a bit low and PTH a bit high. If the Urologist has not discussed this with you please call him! If the Urologist did discuss this with you but you are still not sure how good or bad this is (independent of kidney stones) , you must see the Urologist. Please let me know what develops. ...Read more

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I have normal calcimum level but a low parathyroid hormone level so what can do damage to the gland?

I have normal calcimum level but a low parathyroid hormone level so what can do damage to the gland?

Don't worry: If your calcium level is normal, there is not much to worry about. If your parathyroid hormone level is very low, you may be taking too much calcium by mouth, or you could have some other source of extra calcium in your blood. Discuss with your md or endocrinologist. ...Read more

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My parathyroid hormone is 123 and calcium in blood is 11 is that tumer?

My parathyroid hormone is 123 and calcium in blood is 11 is that  tumer?

Hyperparathyroidism: You have hyperparathyroidism and that is around the range you should consider surgery. You must have an experienced parathyroid surgeon do this. ...Read more

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Can you tell me how could the parathyroid hormone decrease the loss of calcium from the kidneys?

Can you tell me how could the parathyroid hormone decrease the loss of calcium from the kidneys?

Calcium reabsorption: Hi. We filter a lot of our blood calcium into the urine, but the body can't afford to lose that (along with many other filtered goodies), so the kidneys have evolved means to regulate reabsorption out of the urinary filtrate back into the bloodstream. PTH binding to the PTH receptor (cAMP mechanism) activates calcium transporters in the distal tubule so the calcium is recovered. ...Read more

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Can you tell me how the parathyroid hormone increase release of calcium from the bone?

Can you tell me how the parathyroid hormone increase release of calcium from the bone?

Parathyroid: Parathyroid hormone and calcium are linked. If parathyroid hormone increases so will calcium in most circumstances. If your doctor has discussed calcium and parathyroid hormone but you have not understood it, or it has never been discussed with you, I strongly recommend you go online and read the many articles (easy to understand) that discuss links between calcium and parathyroid hormone. ...Read more

Dr. Nicola Barnard
227 doctors shared insights

Calcitonin (Definition)

Calcitonin is a hormone produced by the thyroid gland which is distinct from thyroxine, the main hormone of the thyroid . It helps control the breakdown of bone and has been used to treat patients with osteoporosis. It less potent than most of the other drugs ...Read more