Evidence mapPaperPMID 36568070Full record

SynthesisFrontiers in endocrinology2022

Interventions associated with brown adipose tissue activation and the impact on energy expenditure and weight loss: A systematic review.

Luis C Perez, Laura T Perez, Yash Nene, Guillermo E Umpierrez, Georgia M Davis, Francisco J Pasquel

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in Frontiers in endocrinology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.5field-weighted citation impact, top 17% 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

8 citing papers in PubMed, 13 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 3 institutions in 2 countries.

Luis C PerezPonce Health Sciences University School of Medicine, Ponce, PR, United States.
Laura T PerezPonce Health Sciences University School of Medicine, Ponce, PR, United States.
Yash NeneNeurology Residency Program, SUNY Upstate Medical University, Syracuse, NY, United States.
Guillermo E UmpierrezDepartment of Endocrinology, Emory University School of Medicine, Atlanta, GA, United States.
Georgia M DavisDepartment of Endocrinology, Emory University School of Medicine, Atlanta, GA, United States.
Francisco J PasquelDepartment of Endocrinology, Emory University School of Medicine, Atlanta, GA, United States.
Emory University · USPonce Health Sciences University · PRSUNY Upstate Medical University · US

Funding

Georgia Clinical & Translational Science Alliance (Georgia CTSA)UL1TR002378 · EMORY UNIVERSITY · 2025 to 2025
$9.3M
NCATS NIH HHS UL1 TR002378NIDDK NIH HHS K23 DK122199NIGMS NIH HHS K23 GM128221
6 · The paper itself

Abstract

Background: Brown adipose tissue (BAT) plays a role in modulating energy expenditure. People with obesity have been shown to have reduced activation of BAT. Agents such as β-agonists, capsinoids, thyroid hormone, sildenafil, caffeine, or cold exposure may lead to activation of BAT in humans, potentially modulating metabolism to promote weight loss. Methods: We systematically searched electronic databases for clinical trials testing the effect of these agents and cold exposure on energy expenditure/thermogenesis and the extent to which they may impact weight loss in adults. Results: A total of 695 studies from PubMed, Web of Science, and Medline electronic databases were identified. After the removal of duplicates and further evaluation, 47 clinical trials were analyzed. We observed significant heterogeneity in the duration of interventions and the metrics utilized to estimate thermogenesis/energy expenditure. Changes observed in energy expenditure do not correlate with major weight changes with different interventions commonly known to stimulate thermogenesis. Even though cold exposure appears to consistently activate BAT and induce thermogenesis, studies are small, and it appears to be an unlikely sustainable therapy to combat obesity. Most studies were small and potential risks associated with known side effects of some agents such as β-agonists (tachycardia), sibutramine (hypertension, tachycardia), thyroid hormone (arrhythmias) cannot be fully evaluated from these small trials. Conclusion: Though the impact of BAT activation and associated increases in energy expenditure on clinically meaningful weight loss is a topic of great interest, further data is needed to determine long-term feasibility and efficacy.

Indexed as

Adipose Tissue, BrownObesityAdultEnergy MetabolismHumansThermogenesisWeight Lossbeta agonistbrown adipose tissuebrowning of white adipose tissuecapsinoidscold exposureenergy expenditure and brown adipose tissuesildenafilweight loss and brown adipose tissue

Identifiers

PMID36568070
PMCPMC9780295
OpenAlexW4311947529

What Socratic 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 Socratic graph.