Evidence map›Paper›PMID 19406939›Full record

ArticleEndocrinology2009

Gastric mammalian target of rapamycin signaling regulates ghrelin production and food intake.

Geyang Xu, Yin Li, Wenjiao An, Shenduo Li, Youfei Guan, Nanping Wang, Chaoshu Tang, Xian Wang, Yi Zhu, Xiaoying Li and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Endocrinology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

49 citing papers in PubMed, 95 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. The pressure not to eat.Nature metabolism · 2024
    Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Ghrelin Based Therapy of Metabolic Diseases.Current medicinal chemistry · 2021
    Review
  12. Review
  13. Article
  14. Article
  15. Ghrelin and liver disease.Reviews in endocrine & metabolic disorders · 2020
    Review
  16. Physiological Effect of Ghrelin on Body Systems.International journal of endocrinology · 2020
    Review
  17. Review
  18. Article
  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

12 authors at 3 institutions in 2 countries.

Geyang XuDepartment of Physiology and Pathophysiology, Peking University Health Science Center, Beijing 100083, China.
Yin Li
Wenjiao An
Shenduo Li
Youfei Guan
Nanping Wang
Chaoshu Tang
Xian Wang
Yi Zhu
Xiaoying Li
Michael W Mulholland
Weizhen Zhang
Peking University · CNUniversity of Michigan · USRuijin Hospital · CN

Funding

Obesity is a Surgical ProblemR01DK054032 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MULHOLLAND, MICHAEL W. · 1998 to 2013
$4.5M
Neuropeptide Regulation of Enteropancreatic FunctionR37DK043225 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MULHOLLAND, MICHAEL W. · 2004 to 2013
$3.4M
NEUROPEPTIDE REGULATION OF ENTEROPANCREATIC FUNCTIONR01DK043225 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MULHOLLAND, MICHAEL W. · 1991 to 2003
$844k
NIDDK NIH HHS R01 DK043225NIDDK NIH HHS R01DK043225NIDDK NIH HHS R01 DK054032NIDDK NIH HHS R37 DK043225
6 · The paper itself

Abstract

Ghrelin, a gastric hormone, provides a hunger signal to the central nervous system to stimulate food intake. Mammalian target of rapamycin (mTOR) is an intracellular fuel sensor critical for cellular energy homeostasis. Here we showed the reciprocal relationship of gastric mTOR signaling and ghrelin during changes in energy status. mTOR activity was down-regulated, whereas gastric preproghrelin and circulating ghrelin were increased by fasting. In db/db mice, gastric mTOR signaling was enhanced, whereas gastric preproghrelin and circulating ghrelin were decreased. Inhibition of the gastric mTOR signaling by rapamycin stimulated the expression of gastric preproghrelin and ghrelin mRNA and increased plasma ghrelin in both wild-type and db/db mice. Activation of the gastric mTOR signaling by l-leucine decreased the expression of gastric preproghrelin and the level of plasma ghrelin. Overexpression of mTOR attenuated ghrelin promoter activity, whereas inhibition of mTOR activity by overexpression of TSC1 or TSC2 increased its activity. Ghrelin receptor antagonist d-Lys-3-GH-releasing peptide-6 abolished the rapamycin-induced increment in food intake despite that plasma ghrelin remained elevated. mTOR is therefore a gastric fuel sensor whose activity is linked to the regulation of energy intake through ghrelin.

Indexed as

Signal TransductionAnimalsBlotting, WesternEatingFastingGastric MucosaGene Expression RegulationGhrelinImmunohistochemistryLeucineMaleMiceMice, Inbred C57BLMice, ObeseObesityPolymerase Chain ReactionGhrelinLeucinemTOR protein, mouseProtein KinasesReceptors, GhrelinSirolimusTOR Serine-Threonine Kinases

Identifiers

PMID19406939
PMCPMC2717890
OpenAlexW2101588326

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.