Evidence map›Paper›PMID 34026950›Full record

ArticleBone reports2021

Lipocalin 2 serum levels correlate with age and bone turnover biomarkers in healthy subjects but not in postmenopausal osteoporotic women.

Antonio Maurizi, Marco Ponzetti, Kaare M Gautvik, Sjur Reppe, Anna Teti, Nadia Rucci

Open access · goldAbstract read
In one paragraph

Article in Bone reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.2field-weighted citation impact, top 22% 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

14 citing papers in PubMed, 17 citations in OpenAlex.

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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.

Antonio MauriziDepartment of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Italy.
Marco PonzettiDepartment of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Italy.
Kaare M GautvikUnger-Vetlesen Institute, Lovisenberg Diaconal Hospital, Oslo, Norway.
Sjur ReppeUnger-Vetlesen Institute, Lovisenberg Diaconal Hospital, Oslo, Norway.
Anna TetiDepartment of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Italy.
Nadia RucciDepartment of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Italy.
University of L'Aquila · ITLovisenberg Diakonale Sykehus · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeLipocalin 2 (LCN2) is an adipokine involved in many physiological functions, including bone metabolism. We previously demonstrated its implication in mouse models of mechanical unloading-induced osteoporosis and in a cohort of bed rest volunteers. We therefore aimed at studying its involvement in postmenopausal osteoporosis.

methodsWe measured serum LCN2 and correlated its levels to Dickkopf WNT Signaling Pathway Inhibitor 1 (DKK1), Tartrate Resistant Acid Phosphatase 5B (TRAcP5B), sclerostin, urinary N-terminal telopeptide of type I collagen (NTX), serum C-terminal telopeptide of type I collagen (CTX), parathyroid hormone and vitamin K by ELISA performed in a cohort of younger (50-65 years) and older (66-90 years) osteoporotic women in comparison to healthy subjects. A cohort of male healthy and osteoarthritic patients was also included. Sobel mediation analysis was used to test indirect associations among age, LCN2 and DKK1 or NTX.

resultsLCN2 levels were unchanged in osteoporotic and in osteoarthritis patients when compared to healthy subjects and did not correlate with BMD. However, serum LCN2 correlated with age in healthy women (

conclusionsTaken together, the results suggest a hitherto unknown association between LCN2, DKK1 and age in healthy individuals, but not in postmenopausal osteoporotic women.

Indexed as

BALP, bone-specific alkaline phosphataseBMD, bone mineral densityBMI, body mass indexCTX, C-terminal telopeptide of type I collagenDKK1DKK1, Dickkopf WNT Signaling Pathway Inhibitor 1IL, interleukinLCN2, lipocalin 2Lipocalin-2NfκB, nuclear factor kappa-BNGALNTX, N-terminal telopeptide of type I collagenOsteoarthritisOsteoporosisPTH, parathyroid hormoneRANKL, receptor activator of nuclear factor kappa-BTNF, tumor necrosis factorTRAcP5B, tartrate-resistant acid phosphatase 5BWnt

Identifiers

PMID34026950
PMCPMC8121999
OpenAlexW3141596082

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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.