Evidence map›Paper›PMID 21264226›Full record

ArticlePloS one2011

A humanin derivative reduces amyloid beta accumulation and ameliorates memory deficit in triple transgenic mice.

Takako Niikura, Elkhansa Sidahmed, Chiho Hirata-Fukae, Paul S Aisen, Yasuji Matsuoka

Abstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

42 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Arsenic Promotes Intracellular AβBiological trace element research · 2026
    Article
  3. Review
  4. Advances in Protein and Polypeptide Drug Analytics.Current pharmaceutical design · 2026
    Review
  5. Review
  6. Review
  7. Review
  8. Review
  9. Article
  10. Article
  11. Mitochondria-derived peptides in aging and healthspan.The Journal of clinical investigation · 2022
    Review
  12. Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. Review
  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

5 authors.

Takako NiikuraFaculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada. tniikura@sfu.ca
Elkhansa Sidahmed
Chiho Hirata-Fukae
Paul S Aisen
Yasuji Matsuoka

Funding

Mechanism of Abeta SequestrationR01AG026478 · NIA · GEORGETOWN UNIVERSITY · PI TURNER, RAYMOND SCOTT · 2007 to 2011
$1.4M
Mechanisms of Abeta Sequestration in ADK01AG022455 · NIA · GEORGETOWN UNIVERSITY · PI MATSUOKA, YASUJI · 2004 to 2007
$504k
NIA NIH HHS AG022455NIA NIH HHS AG026478NIA NIH HHS K01 AG022455NIA NIH HHS R01 AG026478
6 · The paper itself

Abstract

Humanin (HN), a 24-residue peptide, was identified as a novel neuroprotective factor and shows anti-cell death activity against a wide spectrum of Alzheimer's disease (AD)-related cytotoxicities, including exposure to amyloid beta (Abeta), in vitro. We previously demonstrated that the injection of S14G-HN, a highly potent HN derivative, into brain ameliorated memory loss in an Abeta-injection mouse model. To fully understand HN's functions under AD-associated pathological conditions, we examined the effect of S14G-HN on triple transgenic mice harboring APP(swe), tau(P310L), and PS-1(M146V) that show the age-dependent development of multiple pathologies relating to AD. After 3 months of intranasal treatment, behavioral analyses showed that S14G-HN ameliorated cognitive impairment in male mice. Moreover, ELISA and immunohistochemical analyses showed that Abeta levels in brains were markedly lower in S14G-HN-treated male and female mice than in vehicle control mice. We also found the expression level of neprilysin, an Abeta degrading enzyme, in the outer molecular layer of hippocampal formation was increased in S14G-HN-treated mouse brains. NEP activity was also elevated by S14G-HN treatment in vitro. These findings suggest that decreased Abeta level in these mice is at least partly attributed to S14G-HN-induced increase of neprilysin level. Although HN was identified as an anti-neuronal death factor, these results indicate that HN may also have a therapeutic effect on amyloid accumulation in AD.

Indexed as

Age FactorsAlzheimer DiseaseAmyloid beta-PeptidesAnimalsBrainFemaleHippocampusIntracellular Signaling Peptides and ProteinsMaleMemory DisordersMiceMice, TransgenicNeprilysinAmyloid beta-PeptideshumaninIntracellular Signaling Peptides and ProteinsNeprilysin

Identifiers

PMID21264226
PMCPMC3022031

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Registered trials

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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.