Evidence map›Paper›PMID 23249698›Full record

ArticleAmerican journal of physiology. Endocrinology and metabolism2013

Thermoneutrality modifies the impact of hypoxia on lipid metabolism.

Jonathan C Jun, Mi-Kyung Shin, Qiaoling Yao, Ronald Devera, Shannon Fonti-Bevans, Vsevolod Y Polotsky

Abstract read
In one paragraph

Article in American journal of physiology. Endocrinology and metabolism, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing 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

23 citing papers in PubMed, 36 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. Senolytic Therapy in Sleep Apnea: Murky Waters or Fountain of Youth?American journal of respiratory and critical care medicine · 2024
    Article
  5. Review
  6. Article
  7. Review
  8. Review
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Does Hypoxia Decrease the Metabolic Rate?Frontiers in endocrinology · 2018
    Review
  15. Adipose HIF-1α causes obesity by suppressing brown adipose tissue thermogenesis.Journal of molecular medicine (Berlin, Germany) · 2017
    Article
  16. Review
  17. Article
  18. Sleep Apnea Research in Animals. Past, Present, and Future.American journal of respiratory cell and molecular biology · 2016
    Review
  19. Article
  20. 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

6 authors at 2 institutions in 1 country.

Jonathan C JunDivision of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21224, USA. jjun2@jhmi.edu
Mi-Kyung Shin
Qiaoling Yao
Ronald Devera
Shannon Fonti-Bevans
Vsevolod Y Polotsky
Johns Hopkins Medicine · USJohns Hopkins University · US

Funding

Research BaseP30DK072488 · NIDDK · UNIVERSITY OF MARYLAND BALTIMORE · PI MITCHELL, BRAXTON D, TAYLOR, SIMEON I. · 2005 to 2019
$17.3M
JHU-UMD Diabetes Research CenterP30DK079637 · NIDDK · JOHNS HOPKINS UNIVERSITY · PI AHIMA, REXFORD S. · 2013 to 2017
$9.7M
Sleep Apnea and Dysregulation of Lipid MetabolismR01HL080105 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI POLOTSKY, VSEVOLOD Y · 2005 to 2014
$3.4M
Mechanisms and Consequences of Intermittent Hypoxia-Induced LipolysisK08HL109475 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI JUN, JONATHAN C. · 2012 to 2016
$725k
NHLBI NIH HHS 1-K08-HL-109475-01A1NHLBI NIH HHS R01-HL-080105NIDDK NIH HHS P30 DK072488NIDDK NIH HHS P30 DK079637
6 · The paper itself

Abstract

Hypoxia has been shown to rapidly increase triglycerides in mice by decreasing plasma lipoprotein clearance. However, the usual temperature of hypoxic exposure is below thermoneutrality for mice, which may increase thermogenesis and energy requirements, resulting in higher tissue lipid uptake. We hypothesize that decreased lipid clearance and ensuing hyperlipidemia are caused by hypoxic suppression of metabolism at cold temperatures and, therefore, would not occur at thermoneutrality. Twelve-week-old, male C57BL6/J mice were exposed to 6 h of 10% O₂ at the usual temperature (22°C) or thermoneutrality (30°C). Acclimation to 22°C increased lipid uptake in the heart, lungs, and brown adipose tissue, resulting in lower plasma triglyceride and cholesterol levels. At this temperature, hypoxia attenuated lipid uptake in most tissues, thereby raising plasma triglycerides and LDL cholesterol. Thermoneutrality decreased tissue lipid uptake, and hypoxia did not cause a further reduction in lipid uptake in any organs. Consequently, hypoxia at thermoneutrality did not affect plasma triglyceride levels. Unexpectedly, plasma HDL cholesterol increased. The effect of hypoxia on white adipose tissue lipolysis was also modified by temperature. Independent of temperature, hypoxia increased heart rate and glucose and decreased activity, body temperature, and glucose sensitivity. Our study underscores the importance of ambient temperature for hypoxia research, especially in studies of lipid metabolism.

Indexed as

Lipid MetabolismAdipose Tissue, BrownAdipose Tissue, WhiteAnimalsBody Temperature RegulationCholesterol, HDLCholesterol, LDLHot TemperatureHyperlipidemiasHypoxiaLipolysisLiverLungMaleMiceMice, Inbred C57BLCholesterol, HDLCholesterol, LDLTriglycerides

Identifiers

PMID23249698
PMCPMC3566502
OpenAlexW2098148225

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.