Evidence map›Paper›PMID 20061604›Full record

ArticleJournal of Alzheimer's disease : JAD2010

The neuroprotective peptide NAP does not directly affect polymerization or dynamics of reconstituted neural microtubules.

Mythili Yenjerla, Nichole E LaPointe, Manu Lopus, Corey Cox, Mary Ann Jordan, Stuart C Feinstein, Leslie Wilson

Abstract read
In one paragraph

Article in Journal of Alzheimer's disease : JAD, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–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

18 citing papers in PubMed.

  1. Review
  2. Review
  3. Review
  4. Review
  5. Microtubule Dysfunction: A Common Feature of Neurodegenerative Diseases.International journal of molecular sciences · 2020
    Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Therapeutic strategies for tau mediated neurodegeneration.Journal of neurology, neurosurgery, and psychiatry · 2013
    Review
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. 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

7 authors.

Mythili YenjerlaDepartment of Molecular, The Neuroscience Research Institute, University of California, Santa Barbara, Santa Barbara, CA 93106-9610, USA.
Nichole E LaPointe
Manu Lopus
Corey Cox
Mary Ann Jordan
Stuart C Feinstein
Leslie Wilson

Funding

Mechanism &Control of Brain Microtubule DynamicsR01NS013560 · NINDS · UNIVERSITY OF CALIFORNIA SANTA BARBARA · PI WILSON, LESLIE · 1985 to 2009
$2.9M
The Molecular Structure and Function of Tau ProteinR01NS035010 · NINDS · UNIVERSITY OF CALIFORNIA SANTA BARBARA · PI FEINSTEIN, STUART C · 1996 to 2010
$2.7M
NINDS NIH HHS NS13560NINDS NIH HHS NS35010NINDS NIH HHS R01 NS013560NINDS NIH HHS R01 NS035010
6 · The paper itself

Abstract

NAP (Asn-Ala-Pro-Val-Ser-Ile-Pro-Gln) is a neuroprotective peptide that shows cognitive protection in patients with amnestic mild cognitive impairment, a precursor to Alzheimer's disease. NAP exhibits potent neuroprotective properties in several in vivo and cellular models of neural injury. While NAP has been found in many studies to affect microtubule assembly and/or stability in neuronal and glial cells at fM concentrations, it has remained unclear whether NAP acts directly or indirectly on tubulin or microtubules. We analyzed the effects of NAP (1 fM-1 microM) on the assembly of reconstituted bovine brain microtubules in vitro and found that it did not significantly (p< 0.05) alter polymerization of either purified tubulin or of a mixture of tubulin and unfractionated microtubule-associated proteins. NAP also had no significant effect (p < 0.05) on the growing and shortening dynamics of steady-state microtubules at their plus ends, nor did it alter the polymerization or dynamics of microtubules assembled in the presence of 3-repeat or 4-repeat tau. Thus, the neuroprotective activity of NAP does not appear to involve a direct action on the polymerization or dynamics of purified tubulin or microtubules.

Indexed as

Tubulin ModulatorsAnimalsCattleMicrotubulesNeural PathwaysNeuroprotective AgentsOligopeptidestau ProteinsdavunetideNeuroprotective AgentsOligopeptidestau ProteinsTubulin Modulators

Identifiers

PMID20061604
PMCPMC2844470

What OpenQuestion holds

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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.