Evidence map›Paper›PMID 19038255›Full record

ArticleExperimental neurology2009

Hippocampal NPY gene transfer attenuates seizures without affecting epilepsy-induced impairment of LTP.

Andreas T Sørensen, Litsa Nikitidou, Marco Ledri, En-Ju D Lin, Matthew J During, Irene Kanter-Schlifke, Merab Kokaia

Open access · greenAbstract read
In one paragraph

Article in Experimental neurology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

28 citing papers in PubMed, 68 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
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  5. Review
  6. RNAi-Based Gene Therapy Rescues Developmental and Epileptic Encephalopathy in a Genetic Mouse Model.Molecular therapy : the journal of the American Society of Gene Therapy · 2020
    Article
  7. NPY and Gene Therapy for Epilepsy: How, When,... and Y.Frontiers in molecular neuroscience · 2020
    Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Endogenously Released Neuropeptide Y Suppresses Hippocampal Short-Term Facilitation and Is Impaired by Stress-Induced Anxiety.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    Article
  15. Article
  16. Review
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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 at 3 institutions in 3 countries.

Andreas T SørensenExperimental Epilepsy Group, Wallenberg Neuroscience Center, BMC A-11, Lund University Hospital, Lund, Sweden.
Litsa Nikitidou
Marco Ledri
En-Ju D Lin
Matthew J During
Irene Kanter-Schlifke
Merab Kokaia
Lund University · SENeurological Surgery · USUniversity of Auckland · NZ

Funding

Somatic Cell Gene Transfer/Neurological & Clinical ApplicationsR01NS044576 · NINDS · WEILL MEDICAL COLLEGE OF CORNELL UNIV · PI LIN, EN-JU · 2004 to 2013
$3.3M
NINDS NIH HHS R01 NS044576
6 · The paper itself

Abstract

Recently, hippocampal neuropeptide Y (NPY) gene therapy has been shown to effectively suppress both acute and chronic seizures in animal model of epilepsy, thus representing a promising novel antiepileptic treatment strategy, particularly for patients with intractable mesial temporal lobe epilepsy (TLE). However, our previous studies show that recombinant adeno-associated viral (rAAV)-NPY treatment in naive rats attenuates long-term potentiation (LTP) and transiently impairs hippocampal learning process, indicating that negative effect on memory function could be a potential side effect of NPY gene therapy. Here we report how rAAV vector-mediated overexpression of NPY in the hippocampus affects rapid kindling, and subsequently explore how synaptic plasticity and transmission is affected by kindling and NPY overexpression by field recordings in CA1 stratum radiatum of brain slices. In animals injected with rAAV-NPY, we show that rapid kindling-induced hippocampal seizures in vivo are effectively suppressed as compared to rAAV-empty injected (control) rats. Six to nine weeks later, basal synaptic transmission and short-term synaptic plasticity are unchanged after rapid kindling, while LTP is significantly attenuated in vitro. Importantly, transgene NPY overexpression has no effect on short-term synaptic plasticity, and does not further compromise LTP in kindled animals. These data suggest that epileptic seizure-induced impairment of memory function in the hippocampus may not be further affected by rAAV-NPY treatment, and may be considered less critical for clinical application in epilepsy patients already experiencing memory disturbances.

Indexed as

Analysis of VarianceAnimalsBiophysical PhenomenaChi-Square DistributionDisease Models, AnimalElectric StimulationElectrodes, ImplantedElectroencephalographyEpilepsyExcitatory Postsynaptic PotentialsGenetic TherapyHippocampusLong-Term PotentiationMaleNeuropeptide YRatsNeuropeptide Y

Identifiers

PMID19038255
PMCPMC2896682
OpenAlexW2014814466

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.