Evidence map›Paper›PMID 27294326›Full record

Observational studyThe Journal of clinical endocrinology and metabolism2016

Diurnal Rhythms of Bone Turnover Markers in Three Ethnic Groups.

Jean Redmond, Anthony J Fulford, Landing Jarjou, Bo Zhou, Ann Prentice, Inez Schoenmakers

Open access · hybridAbstract readObservational Study
In one paragraph

Observational study in The Journal of clinical endocrinology and metabolism, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed
15.7field-weighted citation impact, top 1% 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

64 citing papers in PubMed, 88 citations in OpenAlex.

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4 more citing papers are in PubMed but not listed here.

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 4 institutions in 3 countries.

Jean RedmondMedical Research Council (MRC) Human Nutrition Research (J.R., A.P., I.S.), Cambridge CB1 9NL, United Kingdom; MRC Keneba (A.J.F., L.J., A.P.), Banjul, The Gambia; MRC International Nutrition Group (A.J.F.), London School of Hygiene & Tropical Medicine, London WC1E 7HT, United Kingdom; and Department of Public Health (B.Z.), Shenyang Medical College, Shenyang 110034, People's Republic of China.
Anthony J FulfordMedical Research Council (MRC) Human Nutrition Research (J.R., A.P., I.S.), Cambridge CB1 9NL, United Kingdom; MRC Keneba (A.J.F., L.J., A.P.), Banjul, The Gambia; MRC International Nutrition Group (A.J.F.), London School of Hygiene & Tropical Medicine, London WC1E 7HT, United Kingdom; and Department of Public Health (B.Z.), Shenyang Medical College, Shenyang 110034, People's Republic of China.
Landing JarjouMedical Research Council (MRC) Human Nutrition Research (J.R., A.P., I.S.), Cambridge CB1 9NL, United Kingdom; MRC Keneba (A.J.F., L.J., A.P.), Banjul, The Gambia; MRC International Nutrition Group (A.J.F.), London School of Hygiene & Tropical Medicine, London WC1E 7HT, United Kingdom; and Department of Public Health (B.Z.), Shenyang Medical College, Shenyang 110034, People's Republic of China.
Bo ZhouMedical Research Council (MRC) Human Nutrition Research (J.R., A.P., I.S.), Cambridge CB1 9NL, United Kingdom; MRC Keneba (A.J.F., L.J., A.P.), Banjul, The Gambia; MRC International Nutrition Group (A.J.F.), London School of Hygiene & Tropical Medicine, London WC1E 7HT, United Kingdom; and Department of Public Health (B.Z.), Shenyang Medical College, Shenyang 110034, People's Republic of China.
Ann PrenticeMedical Research Council (MRC) Human Nutrition Research (J.R., A.P., I.S.), Cambridge CB1 9NL, United Kingdom; MRC Keneba (A.J.F., L.J., A.P.), Banjul, The Gambia; MRC International Nutrition Group (A.J.F.), London School of Hygiene & Tropical Medicine, London WC1E 7HT, United Kingdom; and Department of Public Health (B.Z.), Shenyang Medical College, Shenyang 110034, People's Republic of China.
Inez SchoenmakersMedical Research Council (MRC) Human Nutrition Research (J.R., A.P., I.S.), Cambridge CB1 9NL, United Kingdom; MRC Keneba (A.J.F., L.J., A.P.), Banjul, The Gambia; MRC International Nutrition Group (A.J.F.), London School of Hygiene & Tropical Medicine, London WC1E 7HT, United Kingdom; and Department of Public Health (B.Z.), Shenyang Medical College, Shenyang 110034, People's Republic of China.
Medical Research Council · GBMRC Unit the Gambia · GMMRC Human Nutrition Research · GBShenyang Medical College · CN

Funding

Medical Research Council MC_U105960371Medical Research Council U123261351
6 · The paper itself

Abstract

contextEthnic groups differ in fragility fracture risk and bone metabolism. Differences in diurnal rhythms (DRs) of bone turnover and PTH may play a role.

objectiveWe investigated the DRs of plasma bone turnover markers (BTMs), PTH, and 1,25(OH)2D in three groups with pronounced differences in bone metabolism and plasma PTH.

participantsHealthy Gambian, Chinese, and white British adults (ages 60-75 years; 30 per country).

interventionsObservational study with sample collection every 4 hours for 24 hours. MAIN OUTCOMES: Levels of plasma C-terminal telopeptide of type I collagen, procollagen type-1 N-propeptide, N-mid osteocalcin, bone alkaline phosphatase, PTH, and 1,25-dihydroxyvitamin D were measured. DRs were analyzed with random-effects Fourier regression and cross-correlation and regression analyses to assess associations between DRs and fasting and 24-hour means of BTMs and PTH.

resultsConcentrations of BTMs, PTH, and 1,25-dihydroxyvitamin D were higher in Gambians compared to other groups (P < .05). The DRs were significant for all variables and groups (P < .03) and were unimodal, with a nocturnal peak and a daytime nadir for BTMs, whereas PTH had two peaks. The DRs of BTMs and PTH were significantly cross-correlated for all groups (P < .05). There was a significant positive association between C-terminal telopeptide of type I collagen and PTH in the British and Gambian groups (P = .03), but not the Chinese group.

conclusionsDespite ethnic differences in plasma BTMs and PTH, DRs were similar. This indicates that alteration of rhythmicity and loss of coupling of bone resorption and formation associated with an elevated PTH in other studies may not uniformly occur across different populations and needs to be considered in the interpretation of PTH as a risk factor of increased bone loss.

Indexed as

Bone RemodelingCircadian RhythmEthnicityAgedBiomarkersChinaFemaleFractures, BoneGambiaHumansMaleMiddle AgedParathyroid HormoneUnited KingdomBiomarkersParathyroid Hormone

Identifiers

PMID27294326
PMCPMC4971334
OpenAlexW2423924383

What OpenQuestion holds

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LicenceCC BY
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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.