Evidence map›Paper›PMID 23584856›Full record

ArticleEndocrinology2013

Increased bone mass in mice lacking the adipokine apelin.

Lalita Wattanachanya, Wei-Dar Lu, Ramendra K Kundu, Liping Wang, Marcia J Abbott, Dylan O'Carroll, Thomas Quertermous, Robert A Nissenson

Open access · bronzeAbstract read
In one paragraph

Article in Endocrinology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
3.5field-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

24 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Apelin Enhances the Effects ofInternational journal of molecular sciences · 2023
    Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. Apelinergic System Structure and Function.Comprehensive Physiology · 2017
    Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Gs/Gi Regulation of Bone Cell Differentiation: Review and Insights from Engineered Receptors.Hormone and metabolic research = Hormon- und Stoffwechselforschung = Hormones et metabolisme · 2016
    Review
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

8 authors at 4 institutions in 2 countries.

Lalita WattanachanyaVeterans Affairs Medical Center (111 N), 4150 Clement Street, San Francisco, California 94121, USA.
Wei-Dar Lu
Ramendra K Kundu
Liping Wang
Marcia J Abbott
Dylan O'Carroll
Thomas Quertermous
Robert A Nissenson
San Francisco VA Medical Center · USStanford University · USUniversity of California, San Francisco · USThai Red Cross Society · TH

Funding

G PROTEIN SIGNALING IN OSTEOBLASTSR01DK072071 · NIDDK · NORTHERN CALIFORNIA INSTITUTE/RES/EDU · PI NISSENSON, ROBERT · 2006 to 2009
$1.3M
G Protein Signaling in OsteoblastsR56DK072071 · NIDDK · NORTHERN CALIFORNIA INSTITUTE/RES/EDU · PI NISSENSON, ROBERT · 2010 to 2010
$222k
G Protein Signaling in OsteoblastsI01BX001496 · VA · VETERANS AFFAIRS MED CTR SAN FRANCISCO · PI NISSENSON, ROBERT · 2012 to 2015
–
BLRD VA I01 BX001496NIDDK NIH HHS DK072071NIDDK NIH HHS R01 DK072071NIDDK NIH HHS R56 DK072071
6 · The paper itself

Abstract

Adipose tissue plays an important role in skeletal homeostasis, and there is interest in identifying adipokines that influence bone mass. One such adipokine may be apelin, a ligand for the Gi-G protein-coupled receptor APJ, which has been reported to enhance mitogenesis and suppress apoptosis in MC3T3-E1 cells and primary human osteoblasts (OBs). However, it is unclear whether apelin plays a physiological role in regulating skeletal homeostasis in vivo. In this study, we compared the skeletal phenotypes of apelin knockout (APKO) and wild-type mice and investigated the direct effects of apelin on bone cells in vitro. The increased fractional cancellous bone volume at the distal femur was observed in APKO mice of both genders at 12 weeks of age and persisted until the age of 20. Cortical bone perimeter at the femoral midshaft was significantly increased in males and females at both time points. Dynamic histomorphometry revealed that APKO mice had increased rates of bone formation and mineral apposition, with evidences of accelerated OB proliferation and differentiation, without significant alteration in osteoclast activity. An in vitro study showed that apelin increased proliferation of primary mouse OBs as well as suppressed apoptosis in a dose-dependent manner with the maximum effect at 5nM. However, it had no effect on the formation of mineralized nodules. We did not observed significantly altered in osteoclast parameters in vitro. Taken together, the increased bone mass in mice lacking apelin suggested complex direct and paracrine/endocrine effects of apelin on bone, possibly via modulating insulin sensitivity. These results indicate that apelin functions as a physiologically significant antianabolic factor in bone in vivo.

Indexed as

Bone DensityOsteogenesisAdipokinesAnimalsApelinApoptosisCell ProliferationCells, CulturedCore Binding Factor Alpha 1 SubunitFemaleFemurGene ExpressionIntercellular Signaling Peptides and ProteinsMaleMiceMice, 129 StrainAdipokinesApelinApln protein, mouseCore Binding Factor Alpha 1 SubunitIntercellular Signaling Peptides and ProteinsRunx2 protein, mouseSp7 protein, ratTranscription Factors

Identifiers

PMID23584856
PMCPMC3740482
OpenAlexW2062325371

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.