Evidence map›Paper›PMID 23579340›Full record

ArticleOsteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA2013

Sclerostin and Pref-1 have differential effects on bone mineral density and strength parameters in adolescent athletes compared with non-athletes.

P K Fazeli, K E Ackerman, L Pierce, G Guereca, M Bouxsein, M Misra

Abstract read
In one paragraph

Article in Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
2.8field-weighted citation impact, top 11% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Increased sclerostin and preadipocyte factor-1 levels in prepubertal rhythmic gymnasts: associations with bone mineral density, body composition, and adipocytokine values.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2016
    Observational
  11. Article
  12. Effect of Qing'e formula on circulating sclerostin levels in patients with postmenopausal osteoporosis.Journal of Huazhong University of Science and Technology. Medical sciences = Hua zhong ke ji da xue xue bao. Yi xue Ying De wen ban = Huazhong keji daxue xuebao. Yixue Yingdewen ban · 2015
    Article
  13. Volumetric femoral BMD, bone geometry, and serum sclerostin levels differ between type 2 diabetic postmenopausal women with and without fragility fractures.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2015
    Article
  14. Article
  15. 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 1 country.

P K FazeliNeuroendocrine Unit, Massachusetts General Hospital, BUL 457, 55 Fruit Street, Boston, MA 02114, USA.
K E Ackerman
L Pierce
G Guereca
M Bouxsein
M Misra
Massachusetts General Hospital · USBeth Israel Deaconess Medical Center · US

Funding

HARVARD CLINICAL AND TRANSLATIONAL SCIENCE CENTER (UL1)UL1RR025758 · NCRR · HARVARD MEDICAL SCHOOL · PI NADLER, LEE MARSHALL · 2008 to 2011
$91.4M
Harvard Clinical and Translational Science Center (KL2)KL2RR025757 · NCRR · HARVARD MEDICAL SCHOOL · PI NADLER, LEE MARSHALL · 2008 to 2011
$4.1M
Fat Mediated Modulation of Reproductive and Endocrine Function in Young AthletesR01HD060827 · NICHD · MASSACHUSETTS GENERAL HOSPITAL · PI MISRA, MADHUSMITA · 2009 to 2013
$2.4M
Bone Metabolism and Body Composition in Young AthletesK24HD071843 · NICHD · MASSACHUSETTS GENERAL HOSPITAL · PI MISRA, MADHUSMITA · 2013 to 2017
$930k
The Role of PTH in the Low Bone Mass of Anorexia NervosaK23DK094820 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI FAZELI, POUNEH KHADEJEH · 2012 to 2015
$746k
NCRR NIH HHS KL2 RR025757NCRR NIH HHS UL1 RR025758NCRR NIH HHS UL1 RR025758-03NICHD NIH HHS 1 R01 HD060827-01A1NICHD NIH HHS K24 HD071843NICHD NIH HHS R01 HD060827NIDDK NIH HHS K23 DK094820NIDDK NIH HHS K23 DK094820-01
6 · The paper itself

Abstract

unlabelledExcessive exercise can have detrimental effects on bone; however, the mechanisms leading to bone loss are not well understood. Sclerostin and preadipocyte factor (Pref)-1 are two hormones which inhibit bone formation. The present study demonstrates that these hormones may have differential effects in athletes as compared to non-athletes.

introductionExercise activity is common in female adolescents, however, excessive exercise can have detrimental effects on bone mineral density (BMD). Mechanisms underlying this decrease in bone mass are not well understood. We investigated the effects of sclerostin, a potent inhibitor of bone formation via WNT signaling inhibition, and Pref-1, a suppressor of osteoblast differentiation, on BMD, bone turnover markers and bone strength in adolescent athletes.

methodsWe studied 50 adolescents between 15-21 years of age: 17 amenorrheic athletes (AA), 17 eumenorrheic athletes (EA), and 16 nonathletic controls (NA). We measured spine and hip BMD by dual energy x-ray absorptiometry and estimated failure load and stiffness at the distal radius and tibia using micro-finite element analysis. We also measured fasting sclerostin, Pref-1, N-terminal propeptide of type 1 procollagen, and C-terminal collagen cross-links levels.

resultsSclerostin levels were higher in AA and EA compared with NA (AA: 0.42 ± 0.15 ng/mL, EA: 0.44 ± 0.09 ng/mL, NA: 0.33 ± 0.14 ng/mL; p = 0.047). In EA, sclerostin was positively associated with lumbar spine (LS) BMD and its Z-score (R = 0.52, p = 0.03 and R = 0.55, p = 0.02, respectively) whereas in NA, sclerostin was inversely associated with LS BMD (R = -0.61, p = 0.01). Pref-1 levels were similar in all three groups and there were significant inverse associations between Pref-1, BMD, and estimated bone strength in NA.

conclusionsSclerostin and Pref-1 may have differential effects on bone in adolescent athletes compared to non-athletes.

Indexed as

Absorptiometry, PhotonAdaptor Proteins, Signal TransducingAdolescentAmenorrheaBiomarkersBone DensityBone Morphogenetic ProteinsBone RemodelingCalcium-Binding ProteinsCase-Control StudiesExerciseFemaleFemur NeckGenetic MarkersHip JointHumansAdaptor Proteins, Signal TransducingBiomarkersBone Morphogenetic ProteinsCalcium-Binding ProteinsDLK1 protein, humanGenetic MarkersIntercellular Signaling Peptides and ProteinsMembrane ProteinsSOST protein, human

Identifiers

PMID23579340
PMCPMC3740025
OpenAlexW2094141780

What OpenQuestion holds

Textmetadata
LicenceTDM
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.