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Study · Animal study (in vivo) · guinea pig · 2014

9 results

Parathyroid hormone (1-34) prevents cartilage degradation and preserves subchondral bone micro-architecture in guinea pigs with spontaneous osteoarthritis.

Yan JY, Tian FM, Wang WY, Cheng Y, Song HP, Zhang YZ, Zhang L

Osteoarthritis and cartilage30 Jul 2014Cited by 43 (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 guinea pigs with spontaneous osteoarthritis, PTH reduced OARSI scores at six and nine months of age.

    In plain wordsIn guinea pigs with osteoarthritis, PTH reduced cartilage damage scores compared with saline controls.

    Outcome
    DecreaseOARSI cartilage damage score
    Study

    guinea pign: not reported in source

    Spontaneous osteoarthritis
    Comparator
    Normal saline controls
    Outcome group
    Bone and joint · Musculoskeletal
    Studied dose
    Dose not stated

    Source sentences

    Summary
    Histological analyses revealed OA occurred at 3 months of age and was more severe with increasing age, and PTH (1-34) reduced the OARSI scores at 6 and 9 months of age.
    1 context sentence
    Summary · context
    Forty-eight 1-month-old guinea pigs were divided into two groups: 32 were treated by normal saline (NS) and sacrificed at 1, 3, 6 and 9 months of age; the other 16 received PTH (1-34) from 3 months, and were sacrificed at 6 and 9 months.
  2. 02AnimalAnimal study (in vivo)Efficacy outcome

    In guinea pigs with spontaneous osteoarthritis, PTH increased subchondral bone volume ratio.

    In plain wordsIn guinea pigs with osteoarthritis, PTH increased bone volume ratio under cartilage compared with saline controls.

    Outcome
    IncreaseSubchondral bone volume ratio
    Study

    guinea pign: not reported in source

    Spontaneous osteoarthritis
    Comparator
    Normal saline controls
    Outcome group
    Bone and joint · Musculoskeletal
    Studied dose
    Dose not stated

    Source sentences

    Summary
    Micro-CT analysis indicated that PTH (1-34) treatment increased the bone volume ratio and bone mineral density (BMD), while retarding the subchondral trabecular bone micro-architectural changes from rod-like to plate-like.
    1 context sentence
    Summary · context
    Forty-eight 1-month-old guinea pigs were divided into two groups: 32 were treated by normal saline (NS) and sacrificed at 1, 3, 6 and 9 months of age; the other 16 received PTH (1-34) from 3 months, and were sacrificed at 6 and 9 months.
  3. 03AnimalAnimal study (in vivo)Efficacy outcome

    In guinea pigs with spontaneous osteoarthritis, PTH increased subchondral BMD.

    In plain wordsIn guinea pigs with osteoarthritis, PTH increased bone mineral density under cartilage compared with saline controls.

    Outcome
    IncreaseSubchondral BMD
    Study

    guinea pign: not reported in source

    Spontaneous osteoarthritis
    Comparator
    Normal saline controls
    Outcome group
    Bone and joint · Musculoskeletal
    Studied dose
    Dose not stated

    Source sentences

    Summary
    Micro-CT analysis indicated that PTH (1-34) treatment increased the bone volume ratio and bone mineral density (BMD), while retarding the subchondral trabecular bone micro-architectural changes from rod-like to plate-like.
    1 context sentence
    Summary · context
    Forty-eight 1-month-old guinea pigs were divided into two groups: 32 were treated by normal saline (NS) and sacrificed at 1, 3, 6 and 9 months of age; the other 16 received PTH (1-34) from 3 months, and were sacrificed at 6 and 9 months.
  4. 04AnimalAnimal study (in vivo)Efficacy outcome

    In guinea pigs with spontaneous osteoarthritis, PTH retarded subchondral trabecular changes from rod-like to plate-like architecture.

    In plain wordsIn guinea pigs with osteoarthritis, PTH slowed trabecular changes from rod-like to plate-like shapes compared with saline controls.

    Outcome
    DecreaseRod-like to plate-like trabecular changes
    Study

    guinea pign: not reported in source

    Spontaneous osteoarthritis
    Comparator
    Normal saline controls
    Outcome group
    Bone and joint · Musculoskeletal
    Studied dose
    Dose not stated

    Source sentences

    Summary
    Micro-CT analysis indicated that PTH (1-34) treatment increased the bone volume ratio and bone mineral density (BMD), while retarding the subchondral trabecular bone micro-architectural changes from rod-like to plate-like.
    1 context sentence
    Summary · context
    Forty-eight 1-month-old guinea pigs were divided into two groups: 32 were treated by normal saline (NS) and sacrificed at 1, 3, 6 and 9 months of age; the other 16 received PTH (1-34) from 3 months, and were sacrificed at 6 and 9 months.
  5. 05AnimalAnimal study (in vivo)Mechanism

    In guinea pigs with spontaneous osteoarthritis, PTH increased cartilage type-II collagen expression versus controls.

    In plain wordsIn guinea pigs with osteoarthritis, PTH increased cartilage type-II collagen expression compared with controls.

    Outcome
    IncreaseCartilage type-II collagen expression
    Study

    guinea pign: not reported in source

    Spontaneous osteoarthritis
    Comparator
    Normal saline controls
    Outcome group
    Bone and joint · Musculoskeletal
    Studied dose
    Dose not stated

    Source sentences

    Summary
    Immunohistochemical staining demonstrated that PTH (1-34) treatment increased type-II collagen expression and decreased SOST and MMP-13 expression in the cartilage, while elevating the PTH1R, OPG/RANKL expression ratio in the cartilage and subchondral trabecular bone when compared with the control groups.
    1 context sentence
    Summary · context
    Forty-eight 1-month-old guinea pigs were divided into two groups: 32 were treated by normal saline (NS) and sacrificed at 1, 3, 6 and 9 months of age; the other 16 received PTH (1-34) from 3 months, and were sacrificed at 6 and 9 months.
  6. 06AnimalAnimal study (in vivo)Mechanism

    In guinea pigs with spontaneous osteoarthritis, PTH decreased cartilage SOST expression versus controls.

    In plain wordsIn guinea pigs with osteoarthritis, PTH reduced cartilage SOST expression compared with controls.

    Outcome
    DecreaseCartilage SOST expression
    Study

    guinea pign: not reported in source

    Spontaneous osteoarthritis
    Comparator
    Normal saline controls
    Outcome group
    Bone and joint · Musculoskeletal
    Studied dose
    Dose not stated

    Source sentences

    Summary
    Immunohistochemical staining demonstrated that PTH (1-34) treatment increased type-II collagen expression and decreased SOST and MMP-13 expression in the cartilage, while elevating the PTH1R, OPG/RANKL expression ratio in the cartilage and subchondral trabecular bone when compared with the control groups.
    1 context sentence
    Summary · context
    Forty-eight 1-month-old guinea pigs were divided into two groups: 32 were treated by normal saline (NS) and sacrificed at 1, 3, 6 and 9 months of age; the other 16 received PTH (1-34) from 3 months, and were sacrificed at 6 and 9 months.
  7. 07AnimalAnimal study (in vivo)Mechanism

    In guinea pigs with spontaneous osteoarthritis, PTH decreased cartilage MMP-13 expression versus controls.

    In plain wordsIn guinea pigs with osteoarthritis, PTH reduced cartilage MMP-13 expression compared with controls.

    Outcome
    DecreaseCartilage MMP-13 expression
    Study

    guinea pign: not reported in source

    Spontaneous osteoarthritis
    Comparator
    Normal saline controls
    Outcome group
    Bone and joint · Musculoskeletal
    Studied dose
    Dose not stated

    Source sentences

    Summary
    Immunohistochemical staining demonstrated that PTH (1-34) treatment increased type-II collagen expression and decreased SOST and MMP-13 expression in the cartilage, while elevating the PTH1R, OPG/RANKL expression ratio in the cartilage and subchondral trabecular bone when compared with the control groups.
    1 context sentence
    Summary · context
    Forty-eight 1-month-old guinea pigs were divided into two groups: 32 were treated by normal saline (NS) and sacrificed at 1, 3, 6 and 9 months of age; the other 16 received PTH (1-34) from 3 months, and were sacrificed at 6 and 9 months.
  8. 08AnimalAnimal study (in vivo)Mechanism

    In guinea pigs with spontaneous osteoarthritis, PTH increased PTH1R expression in cartilage and subchondral trabecular bone versus controls.

    In plain wordsIn guinea pigs with osteoarthritis, PTH increased PTH1R expression in cartilage and underlying bone compared with controls.

    Outcome
    IncreasePTH1R expression
    Study

    guinea pign: not reported in source

    Spontaneous osteoarthritis
    Comparator
    Normal saline controls
    Outcome group
    Bone and joint · Musculoskeletal
    Studied dose
    Dose not stated

    Source sentences

    Summary
    Immunohistochemical staining demonstrated that PTH (1-34) treatment increased type-II collagen expression and decreased SOST and MMP-13 expression in the cartilage, while elevating the PTH1R, OPG/RANKL expression ratio in the cartilage and subchondral trabecular bone when compared with the control groups.
    1 context sentence
    Summary · context
    Forty-eight 1-month-old guinea pigs were divided into two groups: 32 were treated by normal saline (NS) and sacrificed at 1, 3, 6 and 9 months of age; the other 16 received PTH (1-34) from 3 months, and were sacrificed at 6 and 9 months.
  9. 09AnimalAnimal study (in vivo)Mechanism

    In guinea pigs with spontaneous osteoarthritis, PTH increased the OPG/RANKL expression ratio in cartilage and subchondral trabecular bone versus controls.

    In plain wordsIn guinea pigs with osteoarthritis, PTH increased the OPG/RANKL expression ratio in cartilage and underlying bone compared with controls.

    Outcome
    IncreaseOPG/RANKL expression ratio
    Study

    guinea pign: not reported in source

    Spontaneous osteoarthritis
    Comparator
    Normal saline controls
    Outcome group
    Bone and joint · Musculoskeletal
    Studied dose
    Dose not stated

    Source sentences

    Summary
    Immunohistochemical staining demonstrated that PTH (1-34) treatment increased type-II collagen expression and decreased SOST and MMP-13 expression in the cartilage, while elevating the PTH1R, OPG/RANKL expression ratio in the cartilage and subchondral trabecular bone when compared with the control groups.
    1 context sentence
    Summary · context
    Forty-eight 1-month-old guinea pigs were divided into two groups: 32 were treated by normal saline (NS) and sacrificed at 1, 3, 6 and 9 months of age; the other 16 received PTH (1-34) from 3 months, and were sacrificed at 6 and 9 months.

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

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