Evidence map›Paper›PMID 26906744›Full record

ArticleThe Journal of endocrinology2016

Vitamin D deficiency impairs skeletal muscle function in a smoking mouse model.

Nele Cielen, Nele Heulens, Karen Maes, Geert Carmeliet, Chantal Mathieu, Wim Janssens, Ghislaine Gayan-Ramirez

Open access · hybridAbstract read
In one paragraph

Article in The Journal of endocrinology, 2016. 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 21% 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, 20 citations in OpenAlex.

  1. Review
  2. Regulatory role of vitamin DScientific reports · 2025
    Article
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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

7 authors at 1 institution in 1 country.

Nele CielenLaboratory of Respiratory DiseasesDepartment of Clinical and Experimental Medicine, KULeuven, Leuven, Belgium.
Nele HeulensLaboratory of Respiratory DiseasesDepartment of Clinical and Experimental Medicine, KULeuven, Leuven, Belgium.
Karen MaesLaboratory of Respiratory DiseasesDepartment of Clinical and Experimental Medicine, KULeuven, Leuven, Belgium.
Geert CarmelietLaboratory of Clinical and Experimental EndocrinologyDepartment of Clinical and Experimental Medicine, KULeuven, Leuven, Belgium.
Chantal MathieuLaboratory of Clinical and Experimental EndocrinologyDepartment of Clinical and Experimental Medicine, KULeuven, Leuven, Belgium.
Wim JanssensLaboratory of Respiratory DiseasesDepartment of Clinical and Experimental Medicine, KULeuven, Leuven, Belgium.
Ghislaine Gayan-RamirezLaboratory of Respiratory DiseasesDepartment of Clinical and Experimental Medicine, KULeuven, Leuven, Belgium ghislaine.gayan-ramirez@med.kuleuven.be.
KU Leuven · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chronic obstructive pulmonary disease (COPD) is associated with skeletal muscle dysfunction. Vitamin D plays an important role in muscle strength and performance in healthy individuals. Vitamin D deficiency is highly prevalent in COPD, but its role in skeletal muscle dysfunction remains unclear. We examined the time-course effect of vitamin D deficiency on limb muscle function in mice with normal or deficient vitamin D serum levels exposed to air or cigarette smoke for 6, 12 or 18 weeks. The synergy of smoking and vitamin D deficiency increased lung inflammation and lung compliance from 6 weeks on with highest emphysema scores observed at 18 weeks. Smoking reduced body and muscle mass of the soleus and extensor digitorum longus (EDL), but did not affect contractility, despite type II atrophy. Vitamin D deficiency did not alter muscle mass but reduced muscle force over time, downregulated vitamin D receptor expression, and increased muscle lipid peroxidation but did not alter actin and myosin expression, fiber dimensions or twitch relaxation time. The combined effect of smoking and vitamin D deficiency did not further deteriorate muscle function but worsened soleus mass loss and EDL fiber atrophy at 18 weeks. We conclude that the synergy of smoking and vitamin D deficiency in contrast to its effect on lung disease, had different, independent but important noxious effects on skeletal muscles in a mouse model of mild COPD.

Indexed as

ActinsAnimalsDisease Models, AnimalMaleMiceMice, Inbred C57BLMuscle ContractionMuscle, SkeletalMyosinsOxidative StressPulmonary Disease, Chronic ObstructiveReceptors, CalcitriolSmokingVitamin DVitamin D Deficiency25-hydroxyvitamin DActinsMyosinsReceptors, CalcitriolVitamin Dcigarette smoke exposureCOPDlung functionmuscle atrophymuscle functionoxidative stress

Identifiers

PMID26906744
PMCPMC5064769
OpenAlexW2401716274

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.