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  2. Calcium metabolism - Wikipedia

    en.wikipedia.org/wiki/Calcium_metabolism

    Calcium regulation in the human body. [6]The plasma ionized calcium concentration is regulated within narrow limits (1.3–1.5 mmol/L). This is achieved by both the parafollicular cells of the thyroid gland, and the parathyroid glands constantly sensing (i.e. measuring) the concentration of calcium ions in the blood flowing through them.

  3. Calcitriol - Wikipedia

    en.wikipedia.org/wiki/Calcitriol

    The activity of this enzyme is stimulated by PTH. This is an important control point in Ca 2+ homeostasis. [25] Additional effects on the production of calcitriol include an increase by prolactin, a hormone which stimulates lactogenesis (the formation of milk in mammary glands), a process which requires large amounts of calcium. [29]

  4. Calcitonin - Wikipedia

    en.wikipedia.org/wiki/Calcitonin

    It acts to reduce blood calcium (Ca 2+), opposing the effects of parathyroid hormone (PTH). [7] Its importance in humans has not been as well established as its importance in other animals, as its function is usually not significant in the regulation of normal calcium homeostasis. [8] It belongs to the calcitonin-like protein family.

  5. Calcium in biology - Wikipedia

    en.wikipedia.org/wiki/Calcium_in_biology

    The US Institute of Medicine (IOM) established Recommended Dietary Allowances (RDAs) for calcium in 1997 and updated those values in 2011. [6] See table. The European Food Safety Authority (EFSA) uses the term Population Reference Intake (PRIs) instead of RDAs and sets slightly different numbers: ages 4–10 800 mg, ages 11–17 1150 mg, ages 18–24 1000 mg, and >25 years 950 mg. [10]

  6. Homeostasis - Wikipedia

    en.wikipedia.org/wiki/Homeostasis

    Calcium homeostasis. The plasma ionized calcium (Ca 2+) concentration is very tightly controlled by a pair of homeostatic mechanisms. [60] The sensor for the first one is situated in the parathyroid glands, where the chief cells sense the Ca 2+ level by means of specialized calcium receptors in their membranes.

  7. Parathyroid hormone - Wikipedia

    en.wikipedia.org/wiki/Parathyroid_hormone

    Parathyroid hormone regulates serum calcium through its effects on bone, kidney, and the intestine: [5] In bone, PTH enhances the release of calcium from the large reservoir contained in the bones. [16] Bone resorption is the normal destruction of bone by osteoclasts, which are indirectly stimulated by PTH.

  8. 10 Hormones That Affect Weight & How to Reset Them - AOL

    www.aol.com/lifestyle/10-hormones-affect-weight...

    Hormones can be helpful heroes, supporting the immune system and a healthy sleep-wake schedule. But they can also be culprits of frustrating body issues, like excess weight that won’t come off ...

  9. Calcitonin receptor - Wikipedia

    en.wikipedia.org/wiki/Calcitonin_receptor

    The calcitonin receptor (CT) is a G protein-coupled receptor that binds the peptide hormone calcitonin and is involved in maintenance of calcium homeostasis, [5] particularly with respect to bone formation and metabolism. [6] [7] [8]