Cited by 208Obstructive Sleep Apnea ResearchAdipokines, Inflammation, and Metabolic DiseasesNeuroscience of respiration and sleep

Intermittent Hypoxia Exacerbates Metabolic Effects of Diet‐Induced Obesity

Open access
Drager, Luciano F., Li, Jianguo, Reinke, Christian, Bevans‐Fonti, Shannon, Jun, Jonathan C., Polotsky, Vsevolod Y.·2011·Obesity

Abstract

Obesity causes insulin resistance (IR) and nonalcoholic fatty liver disease (NAFLD), but the relative contribution of sleep apnea is debatable. The main aim of this study is to evaluate the effects of chronic intermittent hypoxia (CIH), a hallmark of sleep apnea, on IR and NAFLD in lean mice and mice with diet‐induced obesity (DIO). Mice (C57BL/6J), 6–8 weeks of age were fed a high fat (n = 18) or regular (n = 16) diet for 12 weeks and then exposed to CIH or control conditions (room air) for 4 weeks. At the end of the exposure, fasting (5 h) blood glucose, insulin, homeostasis model assessment (HOMA) index, liver enzymes, and intraperitoneal glucose tolerance test (1 g/kg) were measured. In DIO mice, body weight remained stable during CIH and did not differ from control conditions. Lean mice under CIH were significantly lighter than control mice by day 28 (P = 0.002). Compared to lean mice, DIO mice had higher fasting levels of blood glucose, plasma insulin, the HOMA index, and had glucose intolerance and hepatic steatosis at baseline. In lean mice, CIH slightly increased HOMA index (from 1.79 ± 0.13 in control to 2.41 ± 0.26 in CIH; P = 0.05), whereas glucose tolerance was not affected. In contrast, in DIO mice, CIH doubled HOMA index (from 10.1 ± 2.1 in control to 22.5 ± 3.6 in CIH; P < 0.01), and induced severe glucose intolerance. In DIO mice, CIH induced NAFLD, inflammation, and oxidative stress, which was not observed in lean mice. In conclusion, CIH exacerbates IR and induces steatohepatitis in DIO mice, suggesting that CIH may account for metabolic dysfunction in obesity.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1038/oby.2011.240

Cites

49 of 49 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Repeated episodes of hypoxia, either from obstructive sleep apnea or experimental induction, result in elevation of blood pressure and altered metabolic function.

    “Repeated episodes of hypoxia, either occurring as a result of obstructive sleep apnea 35 or because of experimental induction, both result in elevation of blood pressure 36 and altered metabolic function.37”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Drager, L. F., Li, J., Reinke, C., Bevans‐Fonti, S., Jun, J. C., & Polotsky, V. Y.
Affiliations
Johns Hopkins University (US)
Corresponding author
Polotsky, Vsevolod Y.
Venue
Obesity
Publisher
Wiley
Published
2011-11
Volume
19
Issue
11
Pages
2167-2174
ISSN
  • 1930-7381 (ISSN-L)
  • 1930-739X
OpenAlex
W2079520227
Cited by
208
References
49
Citations by year
2025: 12 · 2024: 9 · 2023: 13 · 2022: 10 · 2021: 15 · 2020: 10 · 2019: 11 · 2018: 22 · 2017: 15 · 2016: 24 · 2015: 24 · 2014: 23 · 2013: 11 · 2012: 7
FWCI
9.38
Type
journal article
Language
en
Open access
Locations
  • Obesity (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Heart, Lung, and Blood Institute (R01HL080105, HL-080105, HL-07534, P50HL084945, T32HL007534)
  • National Institute of Diabetes and Digestive and Kidney Diseases (P30DK072488)
Topics
  • Health Sciences › Medicine › Physiology › Obstructive Sleep Apnea Research
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Neuroscience of respiration and sleep
Keywords
intermittent hypoxia, sleep apnea, diet-induced obesity, insulin resistance, non-alcoholic fatty liver disease, hepatic steatosis, impaired glucose tolerance, oxidative stress, liver inflammation, high-fat diet, metabolic dysfunction
MeSH terms
Animals, Hypoxia, Blood Glucose, Body Weight, Diet, Fasting, Fatty Liver, Inflammation, Insulin, Insulin Resistance, Mice, Inbred C57BL, Mice, Obese, Obesity, Lipid Peroxidation, Glucose Intolerance, Oxidative Stress, Mice, Non-alcoholic Fatty Liver Disease

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review