Evidence map›Paper›PMID 25117452›Full record

ArticlePloS one2014

Chinese bone turnover marker study: reference ranges for C-terminal telopeptide of type I collagen and procollagen I N-terminal peptide by age and gender.

Mei Li, Yan Li, Weimin Deng, Zhenlin Zhang, Zhongliang Deng, Yingying Hu, Weibo Xia, Ling Xu

Open access · goldAbstract readMulticenter Study
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
3.6field-weighted citation impact, top 8% 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

35 citing papers in PubMed, 58 citations in OpenAlex.

  1. Trial
  2. Article
  3. Personalizing denosumab therapy in postmenopausal Indian women with osteoporosis: predictive role of bone turnover markers and body mass index in determining dosing interval.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2025
    Observational
  4. Effects of vitamin DEndocrine · 2025
    Article
  5. Observational
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  7. Melatonin and bone-related diseases: an updated mechanistic overview of current evidence and future prospects.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2023
    Review
  8. A Three-Year Follow-Up of Bone Density Among Thai Adolescents With Perinatally Acquired HIV After Completion of Vitamin D and Calcium Supplementation.The Journal of adolescent health : official publication of the Society for Adolescent Medicine · 2023
    Observational
  9. Article
  10. Article
  11. Article
  12. Article
  13. Threshold for Relationship between Vitamin D and Parathyroid Hormone in Chinese Women of Childbearing Age.International journal of environmental research and public health · 2021
    Article
  14. Evaluation of bone metabolism-associated biomarkers in Tibet, China.Journal of clinical laboratory analysis · 2021
    Article
  15. Article
  16. Article
  17. Changes of bone turnover markers after elderly hip fracture surgery.Journal of bone and mineral metabolism · 2021
    Observational
  18. Article
  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

8 authors at 6 institutions in 1 country.

Mei LiDepartment of Endocrinology, Key Laboratory of Endocrinology of Ministry of Health, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.
Yan LiDepartment of Laboratory, People's Hospital, Hubei Province, Wuhan, China.
Weimin DengDepartment of Geriatrics, General Hospital of Guangzhou Military Command, Guangzhou, China.
Zhenlin ZhangDepartment of Osteoporosis, Sixth People's Hospital, Shanghai Jiaotong University, Shanghai, China.
Zhongliang DengDepartment of Orthopedics, Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.
Yingying HuDepartment of Endocrinology, Key Laboratory of Endocrinology of Ministry of Health, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.
Weibo XiaDepartment of Endocrinology, Key Laboratory of Endocrinology of Ministry of Health, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.
Ling XuDepartment of Obstetrics and Gynecology, Chinese Academy of Medical Sciences, Peking Union Medical College, Peking Union Medical College Hospital, Beijing, China.
Chinese Academy of Medical Sciences & Peking Union Medical College · CNPeking Union Medical College Hospital · CNDalian Medical University · CNGeneral Hospital of Guangzhou Military Command · CNShanghai Sixth People's Hospital · CNWuhan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBone formation marker procollagen I N-terminal peptide (PINP) and resorption marker C-terminal telopeptide of type I collagen (β-CTX) are useful biomarkers for differential diagnosis and therapeutic evaluation of osteoporosis, but reference values are required.

methodsThe multi-center, cross-sectional Chinese Bone Turnover Marker Study included 3800 healthy volunteers in 5 Chinese cities. Serum PINP, β-CTX, parathyroid hormone (PTH) and 25OHD levels were measured by chemiluminescence assay. Lumbar spine and proximal femur BMD were measured by dual-energy X-ray absorptiometry. Serum PINP and β-CTX levels were assessed by age, gender, weight, recruitment latitude, levels of PTH and 25OHD.

resultsSubjects (n = 1436, M:F, 500:936; mean age 50.6 ± 19.6 years) exhibited non-normally distributed PINP and β-CTX peaking between 15-19 years, gradually declining throughout adulthood, elevating within 10 years of postmenopause, and then declining by age 70. In women between the age of 30 and menopause, median PINP and β-CTX levels were 40.42 (95% CI: 17.10-102.15) and 0.26 (95% CI: 0.08-0.72) ng/mL, respectively. β-CTX and PINP were positively linearly correlated (r = 0.599, P<0.001). β-CTX correlated positively (r = 0.054 and 0.093) and PINP correlated negatively (r =  -0.012 and -0.053) with 25OHD and PTH (P<0.05).

conclusionsWe established Chinese reference ranges for PINP and CTX. Chinese individuals exhibited high serum PINP and β-CTX levels between 15 and 19 years of age and at menopause, which gradually declined after 70 years of age.

Indexed as

AdolescentAdultAgedAged, 80 and overAltitudeBiomarkersBody WeightBone and BonesBone DensityCalcifediolChinaCollagen Type ICross-Sectional StudiesFemaleHealthy VolunteersHumansBiomarkersCalcifediolCollagen Type Icollagen type I trimeric cross-linked peptideParathyroid HormonePeptide FragmentsPeptidesProcollagenprocollagen Type I N-terminal peptide

Identifiers

PMID25117452
PMCPMC4130521
OpenAlexW2044078197

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Registered trials

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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.