Evidence map›Paper›PMID 25456069›Full record

ArticleEndocrinology2015

Regulation of mTOR activity in Snell dwarf and GH receptor gene-disrupted mice.

Graham Dominick, Darlene E Berryman, Edward O List, John J Kopchick, Xinna Li, Richard A Miller, Gonzalo G Garcia

Open access · bronzeAbstract read
In one paragraph

Article in Endocrinology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

66 citing papers in PubMed, 90 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Nutrition, GH/IGF-1 signaling, and cancer.Endocrine-related cancer · 2024
    Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Targeting mTOR for Anti-Aging and Anti-Cancer Therapy.Molecules (Basel, Switzerland) · 2023
    Review
  18. Article
  19. Article
  20. Growth hormone receptor gene disruption.Vitamins and hormones · 2023
    Article

6 more citing papers are in PubMed but not listed here.

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

7 authors at 3 institutions in 1 country.

Graham DominickDepartment of Molecular, Cellular, and Developmental Biology (G.D.), University of Michigan College of Literature, Science and the Arts, Ann Arbor, Michigan 48109; Edison Biotechnology Institute (D.E.B., E.O.L., J.J.K.), Ohio University, Athens, Ohio 45701; Department of Pathology (X.L., R.A.M., G.G.G.), University of Michigan School of Medicine Ann Arbor, Michigan 48109; and University of Michigan Geriatrics Center (R.A.M.), Ann Arbor, Michigan 48109.
Darlene E Berryman
Edward O List
John J Kopchick
Xinna Li
Richard A Miller
Gonzalo G Garcia
University of Michigan–Ann Arbor · USOhio University · USBiotechnology Institute · US

Funding

Research Education CoreP30AG024824 · NIA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Neil Alexander · 2004 to 2026
$29.2M
Research DevelopmentP30AG013283 · NIA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MILLER, RICHARD A · 1995 to 2014
$12.3M
The Somatotropic Axis and Health Aging: A Search for MechanismsP01AG031736 · NIA · SOUTHERN ILLINOIS UNIVERSITY SCH OF MED · PI KIRKLAND, JAMES L. · 2009 to 2013
$8.4M
Longevity genes and calorie restriction: early post-natal effectsR01AG019899 · NIA · SOUTHERN ILLINOIS UNIVERSITY SCH OF MED · PI BARTKE, ANDRZEJ · 2001 to 2016
$6.1M
NIA NIH HHS AG013283NIA NIH HHS AG019899NIA NIH HHS AG031736NIA NIH HHS P01 AG031736NIA NIH HHS P30 AG013283NIA NIH HHS P30 AG024824NIA NIH HHS R01 AG019899
6 · The paper itself

Abstract

The involvement of mammalian target of rapamycin (mTOR) in lifespan control in invertebrates, calorie-restricted rodents, and extension of mouse lifespan by rapamycin have prompted speculation that diminished mTOR function may contribute to mammalian longevity in several settings. We show here that mTOR complex-1 (mTORC1) activity is indeed lower in liver, muscle, heart, and kidney tissue of Snell dwarf and global GH receptor (GHR) gene-disrupted mice (GHR-/-), consistent with previous studies. Surprisingly, activity of mTORC2 is higher in fasted Snell and GHR-/- than in littermate controls in all 4 tissues tested. Resupply of food enhanced mTORC1 activity in both controls and long-lived mutant mice but diminished mTORC2 activity only in the long-lived mice. Mice in which GHR has been disrupted only in the liver do not show extended lifespan and also fail to show the decline in mTORC1 and increase in mTORC2 seen in mice with global loss of GHR. The data suggest that the antiaging effects in the Snell dwarf and GHR-/- mice are accompanied by both a decline in mTORC1 in multiple organs and an increase in fasting levels of mTORC2. Neither the lifespan nor mTOR effects appear to be mediated by direct GH effects on liver or by the decline in plasma IGF-I, a shared trait in both global and liver-specific GHR-/- mice. Our data suggest that a more complex pattern of hormonal effects and intertissue interactions may be responsible for regulating both lifespan and mTORC2 function in these mouse models of delayed aging.

Indexed as

AnimalsDwarfism, PituitaryFastingFemaleLiverMaleMechanistic Target of Rapamycin Complex 1Mechanistic Target of Rapamycin Complex 2Mice, Inbred C3HMice, Inbred C57BLMice, TransgenicMultiprotein ComplexesReceptors, SomatotropinTOR Serine-Threonine KinasesMechanistic Target of Rapamycin Complex 1Mechanistic Target of Rapamycin Complex 2Multiprotein ComplexesReceptors, SomatotropinTOR Serine-Threonine Kinases

Identifiers

PMID25456069
PMCPMC4298324
OpenAlexW1965146511

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.