Cited by 312Regulation of Appetite and ObesityAdipokines, Inflammation, and Metabolic DiseasesHypothalamic control of reproductive hormones

Hyperleptinemia Is Required for the Development of Leptin Resistance

Open access
Knight, Zachary A., Hannan, K. Schot, Greenberg, Matthew L., Friedman, Jeffrey M.·2010·PLoS ONE

Abstract

Leptin regulates body weight by signaling to the brain the availability of energy stored as fat. This negative feedback loop becomes disrupted in most obese individuals, resulting in a state known as leptin resistance. The physiological causes of leptin resistance remain poorly understood. Here we test the hypothesis that hyperleptinemia is required for the development of leptin resistance in diet-induced obese mice. We show that mice whose plasma leptin has been clamped to lean levels develop obesity in response to a high-fat diet, and the magnitude of this obesity is indistinguishable from wild-type controls. Yet these obese animals with constant low levels of plasma leptin remain highly sensitive to exogenous leptin even after long-term exposure to a high fat diet. This shows that dietary fats alone are insufficient to block the response to leptin. The data also suggest that hyperleptinemia itself can contribute to leptin resistance by downregulating cellular response to leptin as has been shown for other hormones.

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 · 10.1371/journal.pone.0011376

Cites

53 of 53 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?

  • Following a switch to a high-fat diet, wild-type and leptin-infused ob/ob mice displayed similar weight gain despite markedly higher plasma leptin levels in the wild-type group.

    “Following the switch to a HFD, wild-type and leptin-infused ob/ob mice displayed similar weight gain despite markedly higher plasma leptin levels in the former group (94).”
  • Wild-type mice exposed to a high-fat diet were resistant to the ability of leptin to reduce food intake and body weight and to induce hypothalamic pSTAT3 relative to leptin-infused ob/ob mice fed a high-fat diet.

    “wild-type mice exposed to a HFD were resistant to the ability of leptin to reduce food intake and body weight and to induce hypothalamic pSTAT3 relative to leptin-infused ob/ob mice fed a HFD.”

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
Knight, Z. A., Hannan, K. S., Greenberg, M. L., & Friedman, J. M.
Affiliations
Howard Hughes Medical Institute (US)
Corresponding author
Friedman, Jeffrey M.
Venue
PLoS ONE
Published
2010-06-29
Volume
5
Issue
6
Pages
e11376
ISSN
1932-6203 (ISSN-L)
OpenAlex
W1974838371
Cited by
311
References
53
Citations by year
2026: 12 · 2025: 17 · 2024: 17 · 2023: 16 · 2022: 21 · 2021: 21 · 2020: 31 · 2019: 21 · 2018: 20 · 2017: 22 · 2016: 19 · 2015: 23 · 2014: 19 · 2013: 14 · 2012: 15
FWCI
7.37
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • eScholarship (California Digital Library) (submittedVersion)
  • eScholarship (California Digital Library) (submittedVersion, cc-by)
Funders
  • Howard Hughes Medical Institute
  • National Institutes of Health (DK083531)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK083531, R00DK083531, DK041096, K99DK083531, R01DK041096)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
Keywords
hyperleptinemia, leptin resistance, diet-induced obesity, leptin signaling, high-fat diet, leptin sensitivity, obesity, energy homeostasis
MeSH terms
Animals, Energy Intake, Feeding Behavior, Mice, Inbred C57BL, Obesity, Leptin, Mice

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