Evidence map›Paper›PMID 20703829›Full record

ArticleJournal of molecular neuroscience : MN2011

Neuroprotective effect of PACAP against NMDA-induced retinal damage in the mouse.

Kimi Endo, Tomoya Nakamachi, Tamotsu Seki, Nobuyuki Kagami, Yoshihiro Wada, Keisuke Nakamura, Koji Kishimoto, Motohide Hori, Daisuke Tsuchikawa, Norihito Shinntani and 4 more

Abstract read
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Article in Journal of molecular neuroscience : MN, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing 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

33 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Stability Test of PACAP in Eye Drops.Journal of molecular neuroscience : MN · 2021
    Article
  6. Article
  7. Article
  8. Article
  9. MelanopsinInternational journal of molecular sciences · 2019
    Article
  10. Article
  11. Review
  12. Article
  13. Early Neurobehavioral Development of Mice Lacking Endogenous PACAP.Journal of molecular neuroscience : MN · 2017
    Article
  14. Article
  15. PACAP Is Protective in a Rat Model of Retinopathy of Prematurity.Journal of molecular neuroscience : MN · 2016
    Article
  16. Article
  17. Article
  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

14 authors.

Kimi EndoDepartment of Anatomy, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan.
Tomoya Nakamachi
Tamotsu Seki
Nobuyuki Kagami
Yoshihiro Wada
Keisuke Nakamura
Koji Kishimoto
Motohide Hori
Daisuke Tsuchikawa
Norihito Shinntani
Hitoshi Hashimoto
Akemichi Baba
Ryohei Koide
Seiji Shioda

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Retinal excitotoxicity is one of the major causes of retinal ganglion cell (RGC) death in glaucoma. Pituitary adenylate cyclase-activating polypeptide (PACAP) is a pleiotropic peptide with potent neuroprotective activity; however, whether it exerts such an effect in the retina and the mechanism by which RGCs are protected is still not well understood. In this study, we examined the effect of exogenous and endogenous PACAP on RGC death induced by N-methyl-D: -aspartate acid (NMDA). The vitreous body of anesthetized adult male mice (C57/BL6J) was injected with NMDA (40 nmol in a 2 μL saline solution). The number of RGCs decreased from days 1 to 7 after NMDA injection, and the number of dUTP end-labeling (TUNEL)-positive cells, an indicator of cell death, peaked at day 3. However, when PACAP38 (10(-8), 10(-10), 10(-12), 10(-14), or 10(-16)M) was co-administered with NMDA, the 10(-10)M dose resulted in significantly increased RGC survival at day 7, and a decrease in the number of TUNEL-positive RGCs at day 3. We next investigated the neuroprotective effect of endogenous PACAP using PACAP heterozygote(+/-) mice. Under normal circumstances, there was no significant difference in the number of RGCs in the PACAP(+/-) mice compared with their wild-type counterparts. However, the number of RGCs significantly decreased in the PACAP(+/-) mice 7 days after NMDA injection, relative to their wild-type counterparts. The number of TUNEL-positive RGCs peaked at day 1 in the PACAP(+/-) mice. These effects in the PACAP(+/-) mice were reversed by intravitreous injection of 10(-10)M PACAP38. This suggests that exogenous PACAP is able to counteract NMDA-induced toxicity, and that endogenous PACAP exerts a neuroprotective effect in the retina.

Indexed as

AnimalsMaleMiceMice, Inbred C57BLMice, KnockoutNeuroprotective AgentsN-MethylaspartatePituitary Adenylate Cyclase-Activating PolypeptideRetinaNeuroprotective AgentsN-MethylaspartatePituitary Adenylate Cyclase-Activating Polypeptide

Identifiers

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Read underepoch 390

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.