Evidence map›Paper›PMID 22767632›Full record

ArticleCerebral cortex (New York, N.Y. : 1991)2013

Prolyl endopeptidase-deficient mice have reduced synaptic spine density in the CA1 region of the hippocampus, impaired LTP, and spatial learning and memory.

Giuseppe D'Agostino, Jung Dae Kim, Zhong-Wu Liu, Jin Kwon Jeong, Shigetomo Suyama, Antonio Calignano, Xiao-Bing Gao, Michael Schwartz, Sabrina Diano

Open access · bronzeAbstract read
In one paragraph

Article in Cerebral cortex (New York, N.Y. : 1991), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.2field-weighted citation impact, top 20% 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

12 citing papers in PubMed, 32 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Subcellular Localization of Prolyl Endopeptidase During the First Wave of Rat Spermatogenesis and in Rat and Human Sperm.The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society · 2019
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Hypothalamic prolyl endopeptidase (PREP) regulates pancreatic insulin and glucagon secretion in mice.Proceedings of the National Academy of Sciences of the United States of America · 2014
    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

9 authors at 3 institutions in 3 countries.

Giuseppe D'AgostinoDepartment of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA.
Jung Dae Kim
Zhong-Wu Liu
Jin Kwon Jeong
Shigetomo Suyama
Antonio Calignano
Xiao-Bing Gao
Michael Schwartz
Sabrina Diano
Institute of Neurobiology · BGUniversity of Naples Federico II · ITYale University · US

Funding

A Carboxypeptidase in the Regulation of Hypothalamic CircuitryR01DK084065 · NIDDK · YALE UNIVERSITY · PI DIANO, SABRINA · 2010 to 2013
$1.4M
NIDDK NIH HHS R01 DK084065
6 · The paper itself

Abstract

Prolyl endopeptidase (PREP) is a phylogenetically conserved serine protease and, in humans and rodents, is highly expressed in the brain. Several neuropeptides associated with learning and memory and neurodegenerative disorders have been proposed to be the substrates for PREP, suggesting a possible role for PREP in these processes. However, its physiological function remains elusive. Combining genetic, anatomical, electrophysiological, and behavioral approaches, we show that PREP genetrap mice have decreased synaptic spine density in the CA1 region of the hippocampus, reduced hippocampal long-term potentiation, impaired hippocampal-mediated learning and memory, and reduced growth-associated protein-43 levels when compared with wild-type controls. These observations reveal a role for PREP in mediating hippocampal plasticity and spatial memory formation, with implications for its pharmacological manipulation in diseases related to cognitive impairment.

Indexed as

AnimalsCA1 Region, HippocampalDendritic SpinesGene Knockdown TechniquesLong-Term PotentiationMaleMaze LearningMemoryMiceProlyl OligopeptidasesSerine EndopeptidasesSynapsesPREPL protein, humanProlyl OligopeptidasesSerine EndopeptidasesCA1hippocampuslong-term potentiationprolyl endopeptidasesynaptic spines

Identifiers

PMID22767632
PMCPMC3841400
OpenAlexW2126913342

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.