Evidence map›Paper›PMID 28386349›Full record

ArticleAmerican journal of translational research2017

Pyrroloquinoline quinone prevents testosterone deficiency-induced osteoporosis by stimulating osteoblastic bone formation and inhibiting osteoclastic bone resorption.

Xuan Wu, Jie Li, Hengwei Zhang, Hui Wang, Guoyong Yin, Dengshun Miao

Open access · greenAbstract read
In one paragraph

Article in American journal of translational research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.5field-weighted citation impact, top 18% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 30 citations in OpenAlex.

  1. Effects of dietary PQQ·NaPoultry science · 2026
    Article
  2. Review
  3. Article
  4. Review
  5. Molecular and Cellular Mechanisms of Osteoporosis.International journal of molecular sciences · 2023
    Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Nutrients · 2021
    Article
  11. Total flavonoids ofExperimental and therapeutic medicine · 2021
    Article
  12. Deletion of p16 accelerates fracture healing in geriatric mice.American journal of translational research · 2021
    Article
  13. Article
  14. Suppression effect of N-acetylcysteine on bone loss in ovariectomized mice.American journal of translational research · 2020
    Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 2 countries.

Xuan WuLaboratory of Reproductive Medicine and The Research Center for Bone and Stem Cells, Department of Anatomy, Histology and Embryology, Nanjing Medical UniversityNanjing 210029, China; Department of Orthopedics, Affiliated Nanjing Jiangbei People's Hospital of Southeast UniversityNanjing 210029, China.
Jie LiLaboratory of Reproductive Medicine and The Research Center for Bone and Stem Cells, Department of Anatomy, Histology and Embryology, Nanjing Medical University Nanjing 210029, China.
Hengwei ZhangDepartment of Pathology and Laboratory Medicine, University of Rochester Medical Center Rochester, NY 14642, USA.
Hui WangLaboratory of Reproductive Medicine and The Research Center for Bone and Stem Cells, Department of Anatomy, Histology and Embryology, Nanjing Medical University Nanjing 210029, China.
Guoyong YinDepartment of Orthopedics, The First Affiliated Hospital of Nanjing Medical University Nanjing Nanjing 210029, China.
Dengshun MiaoLaboratory of Reproductive Medicine and The Research Center for Bone and Stem Cells, Department of Anatomy, Histology and Embryology, Nanjing Medical University Nanjing 210029, China.
Nanjing Medical University · CNUniversity of Rochester Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Accumulating evidences suggest that oxidative stress caused and deteriorated the aging related osteoporosis and pyrroloquinoline quinone (PQQ) is a powerful antioxidant. However, it is unclear whether PQQ can prevent testosterone deficiency-induced osteoporosis. In this study, the orchidectomized (ORX) mice were supplemented in diet with/without PQQ for 48 weeks, and compared with each other and with sham mice. Results showed that bone mineral density, trabecular bone volume, collagen deposition and osteoblast number were decreased significantly in ORX mice compared with shame mice, whereas PQQ supplementation largely prevented these alterations. In contrast, osteoclast surface and ratio of RANKL and OPG mRNA relative expression levels were increased significantly in ORX mice compared with shame mice, but were decreased significantly by PQQ supplementation. Furthermore, we found that CFU-f and ALP positive CFU-f forming efficiency and the proliferation of mesenchymal stem cells were reduced significantly in ORX mice compared with shame mice, but were increased significantly by PQQ supplementation. Reactive oxygen species (ROS) levels in thymus were increased, antioxidant enzymes SOD-1, SOD-2, Prdx I and Prdx IV protein expression levels in bony tissue were down-regulated, whereas the protein expression levels of DNA damage response related molecules including γ-H2AX, p53, Chk2 and NFκB-p65 in bony tissue were up-regulated significantly in ORX mice compared with shame mice, whereas PQQ supplementation largely rescued these alterations observed in ORX mice. Our results indicate that PQQ supplementation can prevent testosterone deficiency-induced osteoporosis by inhibiting oxidative stress and DNA damage, stimulating osteoblastic bone formation and inhibiting osteoclastic bone resorption.

Indexed as

Male osteoporosisorchiectomyoxidative stresspyrroloquinoline quinone

Identifiers

PMID28386349
PMCPMC5376014
OpenAlexW2981826058

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.