Cited by 199Biochemical Analysis and Sensing TechniquesRegulation of Appetite and ObesityAdipokines, Inflammation, and Metabolic Diseases

Leptin Modulates Behavioral Responses to Sweet Substances by Influencing Peripheral Taste Structures

Shigemura, Noriatsu, Ohta, Rie, Kusakabe, Yuko, Miura, Hirohito, Hino, Akihiro, Koyano, Kiyoshi, Nakashima, Kiyohito, Ninomiya, Yuzo·2004·Endocrinology

Abstract

Leptin is a hormone that regulates body weight homeostasis mainly via the hypothalamic functional leptin receptor Ob-Rb. Recently, we proposed that the taste organ is a new peripheral target for leptin. Leptin selectively inhibits mouse taste cell responses to sweet substances and thereby may act as a sweet taste modulator. The present study further investigated leptin action on the taste system by examining expression of Ob-Rb in taste cells and behavioral responses to sweet substances in leptin-deficient ob/ob, and Ob-Rb-deficient db/db mice and their normal litter mates. RT-PCR analysis showed that Ob-Rb was expressed in taste cells in all strains tested. The db/db mice, however, had a RT-PCR product containing an abnormal db insertion that leads to an impaired shorter intracellular domain. In situ hybridization analysis showed that the hybridization signals for normal Ob-Rb mRNA were detected in taste cells in lean and ob/ob mice but not in db/db mice. Two different behavioral tests, one using sweet-bitter mixtures as taste stimuli and the other a conditioned taste aversion paradigm, demonstrated that responses to sucrose and saccharin were significantly decreased after ip injection of leptin in ob/ob and normal littermates, but not in db/db mice. These results suggest that leptin suppresses behavioral responses to sweet substances through its action on Ob-Rb in taste cells. Such taste modulation by leptin may be involved in regulation for food intake.

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 · 10.1210/en.2003-0602

Cites

28 of 28 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?

  • In rodents, absence of leptin increases and addition of leptin dampens peripheral taste and olfactory sensitivity.

    “In rodents, absence of leptin has been shown to increase and addition of leptin to dampen peripheral taste and olfactory sensitivity”

    From Food reward, hyperphagia, and obesity (2011) · cites this paper as [157]

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
Shigemura, N., Ohta, R., Kusakabe, Y., Miura, H., Hino, A., Koyano, K., Nakashima, K., & Ninomiya, Y.
Affiliations
  • Kyushu University (JP)
  • National Agriculture and Food Research Organization (JP)
  • Asahi University (JP)
Corresponding author
Ninomiya, Yuzo
Venue
Endocrinology
Published
2004-02
Volume
145
Issue
2
Pages
839-847
ISSN
  • 0013-7227 (ISSN-L)
  • 1945-7170
OpenAlex
W2053252677
Cited by
199
References
28
Citations by year
2026: 5 · 2025: 5 · 2024: 2 · 2023: 4 · 2022: 3 · 2021: 4 · 2020: 8 · 2019: 13 · 2018: 5 · 2017: 24 · 2016: 10 · 2015: 8 · 2014: 9 · 2013: 8 · 2012: 15
FWCI
4.59
Type
journal article
Language
en
Open access
closed
Locations
  • Endocrinology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Japan Society for the Promotion of Science (15209061, 12470394)
  • Bio-oriented Technology Research Advancement Institution
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Biochemical Analysis and Sensing Techniques
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
Keywords
leptin, sweet taste, taste cells, Ob-Rb, leptin receptor, taste modulation, conditioned taste aversion, sucrose, saccharin, ob/ob mice, db/db mice, food intake regulation
MeSH terms
Animals, Behavior, Animal, Diabetes Mellitus, Female, Male, Mice, Inbred C57BL, Mice, Obese, Receptors, Cell Surface, RNA, Messenger, Saccharin, Sucrose, Taste, Taste Buds, Gene Expression, In Situ Hybridization, Mice, Knockout, Reverse Transcriptase Polymerase Chain Reaction, Leptin, Mice, Receptors, Leptin

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