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Study · Animal study (in vivo) · rat · 1990

9 results

Restoration of axial and appendicular bone volumes by h-PTH(1-34) in parathyroidectomized and osteopenic rats.

Tada K, Yamamuro T, Okumura H, Kasai R, Takahashi H

Bone1 Jan 1990Cited by 47 (Europe PMC)

Summary

The text of this summary is not shown here, because the article license does not allow reuse. Read it at the source (opens in a new tab)

Text rights: Publisher copyright. Results still quote short attributed sentences.

Results from this study9

9 results from studies that gave the peptide. No result from this study comes from people.

  1. 01AnimalAnimal study (in vivo)Efficacy outcome

    In parathyroidectomized and osteopenic rats, hPTH(1-34) significantly restored cancellous bone volume in axial and appendicular skeletons.

    In plain wordsIn rats with removed parathyroid glands and low bone mass, hPTH restored spongy bone volume in axial and limb skeletons.

    Outcome
    IncreaseCancellous bone volume
    Study

    ratn: not reported in source

    Parathyroidectomized and osteopenic rats
    Outcome group
    Bone and joint · Musculoskeletal
    Studied dose
    50 units (15 micrograms) six times weekly · intramuscular · weeks 11 through 18As given in this study (rat).

    Source sentences

    Summary
    Significant restoration of cancellous and cortical bone volumes was observed in axial and appendicular skeletons of animals treated with h-PTH(1-34).
    3 context sentences
    Summary · context
    Effects of h-PTH(1-34) were histomorphometrically evaluated in both cancellous and cortical bone tissues of axial and appendicular skeletons of parathyroidectomized and osteopenic rats.
    Summary · context
    Osteopenia was induced by hemicordotomy immobilization and by estrogen depletion as a result of ovariectomy.
    Summary · context
    The rats received intramuscular injections of 50 units (15 micrograms) of h-PTH(1-34) six times weekly during weeks 11 through 18 of the experiment.
  2. 02AnimalAnimal study (in vivo)Efficacy outcome

    In parathyroidectomized and osteopenic rats, hPTH(1-34) significantly restored cortical bone volume in axial and appendicular skeletons.

    In plain wordsIn rats with removed parathyroid glands and low bone mass, hPTH restored cortical bone volume in axial and limb skeletons.

    Outcome
    IncreaseCortical bone volume
    Study

    ratn: not reported in source

    Parathyroidectomized and osteopenic rats
    Outcome group
    Bone and joint · Musculoskeletal
    Studied dose
    50 units (15 micrograms) six times weekly · intramuscular · weeks 11 through 18As given in this study (rat).

    Source sentences

    Summary
    Significant restoration of cancellous and cortical bone volumes was observed in axial and appendicular skeletons of animals treated with h-PTH(1-34).
    3 context sentences
    Summary · context
    Effects of h-PTH(1-34) were histomorphometrically evaluated in both cancellous and cortical bone tissues of axial and appendicular skeletons of parathyroidectomized and osteopenic rats.
    Summary · context
    Osteopenia was induced by hemicordotomy immobilization and by estrogen depletion as a result of ovariectomy.
    Summary · context
    The rats received intramuscular injections of 50 units (15 micrograms) of h-PTH(1-34) six times weekly during weeks 11 through 18 of the experiment.
  3. 03AnimalAnimal study (in vivo)Efficacy outcome

    In parathyroidectomized and osteopenic rats, hPTH(1-34) stimulated cancellous osteoid surface independently of eroded surface.

    In plain wordsIn rats, hPTH increased unmineralized bone surface in spongy bone independently of eroded surface.

    Outcome
    IncreaseCancellous osteoid surface
    Study

    ratn: not reported in source

    Parathyroidectomized and osteopenic rats
    Outcome group
    Bone and joint · Musculoskeletal
    Studied dose
    50 units (15 micrograms) six times weekly · intramuscular · weeks 11 through 18As given in this study (rat).

    Source sentences

    Summary
    The stimulatory effects of h-PTH(1-34) on osteoid surface, independent of eroded surface, in cancellous and cortical bone tissues, were clearly observed histomorphometrically.
    3 context sentences
    Summary · context
    Effects of h-PTH(1-34) were histomorphometrically evaluated in both cancellous and cortical bone tissues of axial and appendicular skeletons of parathyroidectomized and osteopenic rats.
    Summary · context
    Osteopenia was induced by hemicordotomy immobilization and by estrogen depletion as a result of ovariectomy.
    Summary · context
    The rats received intramuscular injections of 50 units (15 micrograms) of h-PTH(1-34) six times weekly during weeks 11 through 18 of the experiment.
  4. 04AnimalAnimal study (in vivo)Efficacy outcome

    In parathyroidectomized and osteopenic rats, hPTH(1-34) stimulated cortical osteoid surface independently of eroded surface.

    In plain wordsIn rats, hPTH increased unmineralized bone surface in cortical bone independently of eroded surface.

    Outcome
    IncreaseCortical osteoid surface
    Study

    ratn: not reported in source

    Parathyroidectomized and osteopenic rats
    Outcome group
    Bone and joint · Musculoskeletal
    Studied dose
    50 units (15 micrograms) six times weekly · intramuscular · weeks 11 through 18As given in this study (rat).

    Source sentences

    Summary
    The stimulatory effects of h-PTH(1-34) on osteoid surface, independent of eroded surface, in cancellous and cortical bone tissues, were clearly observed histomorphometrically.
    3 context sentences
    Summary · context
    Effects of h-PTH(1-34) were histomorphometrically evaluated in both cancellous and cortical bone tissues of axial and appendicular skeletons of parathyroidectomized and osteopenic rats.
    Summary · context
    Osteopenia was induced by hemicordotomy immobilization and by estrogen depletion as a result of ovariectomy.
    Summary · context
    The rats received intramuscular injections of 50 units (15 micrograms) of h-PTH(1-34) six times weekly during weeks 11 through 18 of the experiment.
  5. 05AnimalAnimal study (in vivo)Efficacy outcome

    In parathyroidectomized and osteopenic rats, hPTH(1-34) markedly increased cancellous mineralizing surface.

    In plain wordsIn rats, hPTH markedly increased mineralizing surface in spongy bone.

    Outcome
    IncreaseCancellous mineralizing surface
    Study

    ratn: not reported in source

    Parathyroidectomized and osteopenic rats
    Outcome group
    Bone and joint · Musculoskeletal
    Studied dose
    50 units (15 micrograms) six times weekly · intramuscular · weeks 11 through 18As given in this study (rat).

    Source sentences

    Summary
    Mineralizing surface, mineral apposition rate and bone formation rate in cancellous bone tissues were markedly increased by h-PTH(1-34).
    3 context sentences
    Summary · context
    Effects of h-PTH(1-34) were histomorphometrically evaluated in both cancellous and cortical bone tissues of axial and appendicular skeletons of parathyroidectomized and osteopenic rats.
    Summary · context
    Osteopenia was induced by hemicordotomy immobilization and by estrogen depletion as a result of ovariectomy.
    Summary · context
    The rats received intramuscular injections of 50 units (15 micrograms) of h-PTH(1-34) six times weekly during weeks 11 through 18 of the experiment.
  6. 06AnimalAnimal study (in vivo)Efficacy outcome

    In parathyroidectomized and osteopenic rats, hPTH(1-34) markedly increased cancellous mineral apposition rate.

    In plain wordsIn rats, hPTH markedly increased the rate of mineral accumulation in spongy bone.

    Outcome
    IncreaseCancellous mineral apposition rate
    Study

    ratn: not reported in source

    Parathyroidectomized and osteopenic rats
    Outcome group
    Bone and joint · Musculoskeletal
    Studied dose
    50 units (15 micrograms) six times weekly · intramuscular · weeks 11 through 18As given in this study (rat).

    Source sentences

    Summary
    Mineralizing surface, mineral apposition rate and bone formation rate in cancellous bone tissues were markedly increased by h-PTH(1-34).
    3 context sentences
    Summary · context
    Effects of h-PTH(1-34) were histomorphometrically evaluated in both cancellous and cortical bone tissues of axial and appendicular skeletons of parathyroidectomized and osteopenic rats.
    Summary · context
    Osteopenia was induced by hemicordotomy immobilization and by estrogen depletion as a result of ovariectomy.
    Summary · context
    The rats received intramuscular injections of 50 units (15 micrograms) of h-PTH(1-34) six times weekly during weeks 11 through 18 of the experiment.
  7. 07AnimalAnimal study (in vivo)Efficacy outcome

    In parathyroidectomized and osteopenic rats, hPTH(1-34) markedly increased cancellous bone formation rate.

    In plain wordsIn rats, hPTH markedly increased spongy bone formation rate.

    Outcome
    IncreaseCancellous bone formation rate
    Study

    ratn: not reported in source

    Parathyroidectomized and osteopenic rats
    Outcome group
    Bone and joint · Musculoskeletal
    Studied dose
    50 units (15 micrograms) six times weekly · intramuscular · weeks 11 through 18As given in this study (rat).

    Source sentences

    Summary
    Mineralizing surface, mineral apposition rate and bone formation rate in cancellous bone tissues were markedly increased by h-PTH(1-34).
    3 context sentences
    Summary · context
    Effects of h-PTH(1-34) were histomorphometrically evaluated in both cancellous and cortical bone tissues of axial and appendicular skeletons of parathyroidectomized and osteopenic rats.
    Summary · context
    Osteopenia was induced by hemicordotomy immobilization and by estrogen depletion as a result of ovariectomy.
    Summary · context
    The rats received intramuscular injections of 50 units (15 micrograms) of h-PTH(1-34) six times weekly during weeks 11 through 18 of the experiment.
  8. 08AnimalAnimal study (in vivo)Efficacy outcome

    In parathyroidectomized and osteopenic rats, hPTH(1-34) increased trabecular thickness.

    In plain wordsIn rats, hPTH increased the thickness of spongy bone struts.

    Outcome
    IncreaseTrabecular thickness
    Study

    ratn: not reported in source

    Parathyroidectomized and osteopenic rats
    Outcome group
    Bone and joint · Musculoskeletal
    Studied dose
    50 units (15 micrograms) six times weekly · intramuscular · weeks 11 through 18As given in this study (rat).

    Source sentences

    Summary
    It should be noted that h-PTH(1-34) increased trabecular thickness, but did not increase trabecular number.
    3 context sentences
    Summary · context
    Effects of h-PTH(1-34) were histomorphometrically evaluated in both cancellous and cortical bone tissues of axial and appendicular skeletons of parathyroidectomized and osteopenic rats.
    Summary · context
    Osteopenia was induced by hemicordotomy immobilization and by estrogen depletion as a result of ovariectomy.
    Summary · context
    The rats received intramuscular injections of 50 units (15 micrograms) of h-PTH(1-34) six times weekly during weeks 11 through 18 of the experiment.
  9. 09AnimalAnimal study (in vivo)Efficacy outcome

    In parathyroidectomized and osteopenic rats, hPTH(1-34) did not increase trabecular number.

    In plain wordsIn rats, hPTH did not increase the number of spongy bone struts.

    Outcome
    No significant changeTrabecular number
    Study

    ratn: not reported in source

    Parathyroidectomized and osteopenic rats
    Outcome group
    Bone and joint · Musculoskeletal
    Studied dose
    50 units (15 micrograms) six times weekly · intramuscular · weeks 11 through 18As given in this study (rat).

    Source sentences

    Summary
    It should be noted that h-PTH(1-34) increased trabecular thickness, but did not increase trabecular number.
    3 context sentences
    Summary · context
    Effects of h-PTH(1-34) were histomorphometrically evaluated in both cancellous and cortical bone tissues of axial and appendicular skeletons of parathyroidectomized and osteopenic rats.
    Summary · context
    Osteopenia was induced by hemicordotomy immobilization and by estrogen depletion as a result of ovariectomy.
    Summary · context
    The rats received intramuscular injections of 50 units (15 micrograms) of h-PTH(1-34) six times weekly during weeks 11 through 18 of the experiment.

AI wrote and checked these results. AI can make mistakes, so check important results against the source.

Version history

PepBank keeps every version of the data on this study. Status changes from Retraction Watch, Europe PMC and Crossref are listed with their source.

  1. Version 2Current

    22 Oct 2026, 02:26 UTC

    Study results updated

  2. Version 1

    21 Oct 2026, 18:59 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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