Evidence map›Paper›PMID 25296887›Full record

ArticleEuropean journal of nutrition2015

1,25-Dihydroxyvitamin D3/vitamin D receptor suppresses brown adipocyte differentiation and mitochondrial respiration.

Carolyn J Ricciardi, Jiyoung Bae, Debora Esposito, Slavko Komarnytsky, Pan Hu, Jiangang Chen, Ling Zhao

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Article in European journal of nutrition, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

40 citing papers in PubMed, 77 citations in OpenAlex.

  1. Review
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  10. The Role of Vitamin D in Supporting Health in the COVID-19 Era.International journal of molecular sciences · 2022
    Review
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  20. Soluble Epoxide Hydrolase Inhibition byInternational journal of molecular sciences · 2020
    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

7 authors at 3 institutions in 1 country.

Carolyn J RicciardiDepartment of Nutrition, University of Tennessee, 1215 W. Cumberland Ave, Knoxville, TN, 37996, USA.
Jiyoung Bae
Debora Esposito
Slavko Komarnytsky
Pan Hu
Jiangang Chen
Ling Zhao
University of Tennessee at Knoxville · USDavid H. Murdock Research Institute · USNorth Carolina State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe vitamin D system plays a role in metabolism regulation. 1,25-dihydroxyvitamin D3 (1,25(OH)2D3) suppressed 3T3-L1 white adipocyte differentiation. Vitamin D receptor (VDR) knockout mice showed increased energy expenditure, whereas mice with adipose-specific VDR over-expression showed decreased energy expenditure. Brown adipose tissue (BAT), now known to be present in adult humans, functions in non-shivering thermogenesis by uncoupling ATP synthesis from respiration and plays an important role in energy expenditure. However, the effects of 1,25(OH)2D3/VDR on brown adipocyte differentiation and mitochondrial respiration have not been reported.

methodsmRNA expression of VDR and the metabolizing enzymes 1α-hydroxylase (CYP27B1) and 24-hydroxylase (CYP24A1) were examined in BAT of mice models of obesity and during brown adipocyte differentiation. The effects of 1,25(OH)2D3 and VDR over-expression on brown adipocyte differentiation and functional outcomes were evaluated.

resultsNo significant changes in mRNA of VDR and CYP27B1 were noted in both diet-induced obese (DIO) and ob/ob mice, whereas uncoupling protein 1 mRNA was downregulated in BAT of ob/ob, but not DIO mice when compared to the controls. In contrast, mRNA of VDR, CYP24A1, and CYP27B1 were downregulated during brown adipocyte differentiation in vitro. 1,25(OH)2D3 dose-dependently suppressed brown adipocyte differentiation, accompanied by suppressed isoproterenol-stimulated oxygen consumption rates (OCR), maximal OCR and OCR from proton leak. Consistently, over-expression of VDR also suppressed brown adipocyte differentiation. Further, both 1,25(OH)2D3 and VDR over-expression suppressed PPARγ transactivation in brown preadipocytes.

conclusionOur results demonstrate the suppressive effects of 1,25(OH)2D3/VDR signaling on brown adipocyte differentiation and mitochondrial respiration. The role of 1,25(OH)2D3/VDR system in regulating BAT development and function in obesity warrant further investigation.

Indexed as

25-Hydroxyvitamin D3 1-alpha-HydroxylaseAdipocytes, BrownAnimalsCalcitriolCell DifferentiationEnergy MetabolismGene ExpressionIon ChannelsMaleMiceMice, Inbred C57BLMice, ObeseMitochondriaMitochondrial ProteinsObesityOxygen Consumption25-Hydroxyvitamin D3 1-alpha-HydroxylaseCalcitriolIon ChannelsMitochondrial ProteinsPPAR gammaReceptors, CalcitriolRNA, MessengerUCP1 protein, humanUcp1 protein, mouseUncoupling Protein 1Vitamin D3 24-Hydroxylase

Identifiers

PMID25296887
OpenAlexW2072321619

What OpenQuestion holds

Textmetadata
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.