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Related Experiment Videos

[Calcitonin]

A Itabashi1

  • 1Clinical Laboratory, Saitama Medical School.

Nihon Rinsho. Japanese Journal of Clinical Medicine
|July 2, 1998
PubMed
Summary
This summary is machine-generated.

Calcitonin effectively inhibits bone resorption for osteoporosis treatment. However, optimal nasal or injectable dosage and regimen require further clinical trials to establish efficacy and avoid resistance.

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Bone·2000

Area of Science:

  • Endocrinology
  • Pharmacology
  • Bone Biology

Context:

  • Calcitonin is a key osteoporosis treatment, inhibiting osteoclastic bone resorption.
  • Nasal calcitonin is preferred in Europe/US, while Japan uses injectable forms.
  • Current treatment regimens, doses, and frequencies vary significantly, lacking standardization.

Purpose:

  • To review calcitonin's efficacy and administration routes for osteoporosis.
  • To discuss the pharmacokinetic and pharmacodynamic effects of calcitonin.
  • To explore the 'escape phenomenon' and its implications for long-term treatment.

Summary:

  • Both nasal and injectable calcitonin impair osteoclast activity, evidenced by reduced urinary pyridinoline cross-links.
  • Peak serum concentrations exceed levels that rapidly inhibit bone resorption.

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  • Consecutive treatment may downregulate calcitonin receptors on osteoclasts, potentially causing treatment escape.

    • Impact:

    • Standardized calcitonin preparations and regimens are needed for effective osteoporosis management.
    • Further long-term clinical trials using bone markers and bone mass measurements are crucial.
    • Understanding the 'escape phenomenon' is vital for optimizing calcitonin therapy and maintaining bone volume.