Evidence map›Paper›PMID 25766283›Full record

ArticleHuman brain mapping2015

A potential role for the midbrain in integrating fat-free mass determined energy needs: An H2 (15) O PET study.

Christopher M Weise, Pradeep Thiyyagura, Eric M Reiman, Kewei Chen, Jonathan Krakoff

Abstract read
In one paragraph

Article in Human brain mapping, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
4.5field-weighted citation impact, top 6% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.

  1. Variability of physiological brain perfusion in healthy subjects - A systematic review of modifiers. Considerations for multi-center ASL studies.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2018
    Pooled it
  2. Trial
  3. Trial
  4. Trial
  5. Article
  6. Fat-free mass and resting metabolic rate are determinants of energy intake: implications for a theory of appetite control.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023
    Review
  7. Article
  8. Carnitine acetyltransferase (Crat) in hunger-sensing AgRP neurons permits adaptation to calorie restriction.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2018
    Article
  9. Review
  10. Article
  11. Article
  12. 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

5 authors at 3 institutions in 2 countries.

Christopher M WeiseObesity and Diabetes Clinical Research Section, NIDDK-NIH, DHHS, Phoenix, Arizona; Department of Neurology, University of Leipzig, Germany.
Pradeep Thiyyagura
Eric M Reiman
Kewei Chen
Jonathan Krakoff
Alzheimer's Association · USLeipzig University · DETranslational Genomics Research Institute · US

Funding

Neuronal activity and its role in adiposity and food intakeZIADK069088 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI KRAKOFF, JONATHAN · 2009 to 2025
$9.1M
Intramural NIH HHS Z99 DK999999
6 · The paper itself

Abstract

Little is known on how sensing of energy needs is centrally represented, integrated, and translated into the behavioral aspects of energy homeostasis. Fat free mass (FFM) is the major determinant of energy expenditure. We investigated how interindividual variances in FFM relate to neuronal activity in humans. Healthy adults (n = 64, 21F/43M; age 31.3 ± 9.1y; percentage of body fat [PFAT] 25.6 ± 10.7%; BMI 30.4 ± 9) underwent a 36h fast and subsequent H(2) (15) O positron emission tomographic (PET) measurement of regional cerebral blood flow (rCBF). Multiple variable regression analysis revealed significant associations of FFM with rCBF within the midbrain [including parts of the periaqueductal gray (PAG), ventral tegmental area (VTA), thalamic and hypothalamic regions], the bilateral parahippocampal region, left anterior cingulate, left insular cortex, right cerebellum, and distinct regions within the temporal and occipital cortex. In contrast, no significant associations were found for fat mass (FM). We investigated the potential functional-anatomical link between FFM and central regulation of food intake by performing a conjunction analysis of FFM and the perceived hunger feelings. This showed a significant overlap within the midbrain PAG. Mediation analysis demonstrated a significant indirect effect of FFM on hunger with PAG rCBF as mediator. Most regions we found to be associated with FFM form part in ascending homeostatic pathways and cortical circuitries implicated in the regulation of basic bodily functions indicating a potential role of these central networks in the integration of FFM determined energy needs.

Indexed as

Adipose TissueAdolescentAdultBrain MappingCerebrovascular CirculationDeuteriumFastingFemaleHomeostasisHumansHungerMaleMesencephalonMiddle AgedOxygen RadioisotopesPositron-Emission TomographyDeuteriumOxygen RadioisotopesRadiopharmaceuticalsbody compositionbrainenergy homeostasishungerregional cerebral blood flow

Identifiers

PMID25766283
PMCPMC5410621
OpenAlexW2125220300

What OpenQuestion holds

Textmetadata
LicenceTDM
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.