Evidence map›Paper›PMID 31555815›Full record

ArticleSleep2019

Sleep duration and quality are not associated with brown adipose tissue volume or activity-as determined by 18F-FDG uptake, in young, sedentary adults.

Francisco M Acosta, Guillermo Sanchez-Delgado, Borja Martinez-Tellez, Jairo H Migueles, Francisco J Amaro-Gahete, Patrick C N Rensen, Jose M Llamas-Elvira, Denis P Blondin, Jonatan R Ruiz

Registry-linked trialOpen access · hybridAbstract read
In one paragraph

Article in Sleep, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02365129 (Activating Brown Adipose Tissue Through Exercise), which is not on this map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.4field-weighted citation impact, top 18% 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.

NCT02365129 naunknown statusnot on this map

Activating Brown Adipose Tissue Through Exercise: Randomized Controlled Trial

TypeinterventionalSponsorUniversidad de GranadaRan2015 to 2017Enrolled180ConditionsObesity, Diabetes Mellitus, Metabolic Syndrome XArmsExercise training based on recommendations for adults (WHO)
3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
  2. Metabolic signals in sleep regulation: the role of brown adipose tissue.Neurobiology of sleep and circadian rhythms · 2025
    Article
  3. Article
  4. Article
  5. 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

9 authors at 4 institutions in 3 countries.

Francisco M AcostaPROFITH "PROmoting FITness and Health through physical activity" Research Group, Department of Physical and Sports Education, Sport and Health University Research Institute (iMUDS), Faculty of Sports Science, University of Granada, Granada, Spain.
Guillermo Sanchez-DelgadoPROFITH "PROmoting FITness and Health through physical activity" Research Group, Department of Physical and Sports Education, Sport and Health University Research Institute (iMUDS), Faculty of Sports Science, University of Granada, Granada, Spain.
Borja Martinez-TellezPROFITH "PROmoting FITness and Health through physical activity" Research Group, Department of Physical and Sports Education, Sport and Health University Research Institute (iMUDS), Faculty of Sports Science, University of Granada, Granada, Spain.
Jairo H MiguelesPROFITH "PROmoting FITness and Health through physical activity" Research Group, Department of Physical and Sports Education, Sport and Health University Research Institute (iMUDS), Faculty of Sports Science, University of Granada, Granada, Spain.
Francisco J Amaro-GahetePROFITH "PROmoting FITness and Health through physical activity" Research Group, Department of Physical and Sports Education, Sport and Health University Research Institute (iMUDS), Faculty of Sports Science, University of Granada, Granada, Spain.
Patrick C N RensenDepartment of Medicine, Division of Endocrinology, and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands.
Jose M Llamas-ElviraNuclear Medicine Services, "Virgen de las Nieves" University Hospital, Granada, Spain.
Denis P BlondinFaculty of Medicine and Health Sciences, Department of Pharmacology-Physiology, Université de Sherbrooke and Centre de Recherche du Centre hospitalier universitaire de Sherbrooke, Quebec, Canada.
Jonatan R RuizPROFITH "PROmoting FITness and Health through physical activity" Research Group, Department of Physical and Sports Education, Sport and Health University Research Institute (iMUDS), Faculty of Sports Science, University of Granada, Granada, Spain.
Universidad de Granada · ESHospital Universitario Virgen de las Nieves · ESLeiden University Medical Center · NLUniversité de Sherbrooke · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

objectivesShort sleep duration and sleep disturbances have been related to obesity and metabolic disruption. However, the behavioral and physiological mechanisms linking sleep and alterations in energy balance and metabolism are incompletely understood. In rodents, sleep regulation is closely related to appropriate brown adipose tissue (BAT) thermogenic activity, but whether the same is true in humans has remained unknown. The present work examines whether sleep duration and quality are related to BAT volume and activity (measured by 18F-FDG) and BAT radiodensity in humans.

methodsA total of 118 healthy adults (69% women, 21.9 ± 2.2 years, body mass index: 24.9 ± 4.7 kg/m2) participated in this cross-sectional study. Sleep duration and other sleep variables were measured using a wrist-worn accelerometer for seven consecutive days for 24 hours per day. The Pittsburgh Sleep Quality Index was used to assess sleep quality. All participants then underwent a personalized cold exposure to determine their BAT volume, activity, and radiodensity (a proxy of the intracellular triglyceride content), using static positron emission tomography combined with computed tomography (PET/CI) scan.

resultsNeither sleep duration nor quality was associated with BAT volume or activity (the latter represented by the mean and peak standardized 18F-FDG uptake values) or radiodensity (all p > .1). The lack of association remained after adjusting the analyses for sex, date of PET/CT, and body composition.

conclusionsAlthough experiments in rodent models indicate a strong relationship to exist between sleep regulation and BAT function, it seems that sleep duration and quality may not be directly related to the BAT variables examined in the present work. CLINICAL

trial registrationNCT02365129 (ClinicalTrials.gov).

Indexed as

Fluorodeoxyglucose F18Sedentary BehaviorAdipose Tissue, BrownAdolescentAdultBody CompositionCross-Sectional StudiesEnergy MetabolismFemaleHumansMaleObesityPositron Emission Tomography Computed TomographySleepThermogenesisTime FactorsFluorodeoxyglucose F18Triglyceridesbrown fatcold-induced thermogenesisenergy balanceglucose uptakesleep curtailmentthermoregulation

Identifiers

PMID31555815
PMCPMC6930133
OpenAlexW2968066920

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

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.