Evidence map›Paper›PMID 37919602›Full record

ArticleMolecular neurobiology2024

Exendin-4 Prevents Memory Loss and Neuronal Death in Rats with Sporadic Alzheimer-Like Disease.

Adriana M Zago, Fabiano B Carvalho, Francine L Rahmeier, Marta Santin, Giuliano R Guimarães, Jessié M Gutierres, Marilda da C Fernandes

Abstract read
PubMed Publisher
In one paragraph

Article in Molecular neurobiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
3.4field-weighted citation impact, top 6% 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, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Pooled it
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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 1 institution in 1 country.

Adriana M ZagoGraduate Program in Pathology, Pathology Research Laboratory, Federal University of Health Sciences of Porto Alegre, Sarmento Leite, 245, Room 514, Building 3. CEP 90050-170, Porto Alegre, RS, Brazil.ORCID http://orcid.org/0000-0002-6866-946X
Fabiano B CarvalhoGraduate Program in Pathology, Pathology Research Laboratory, Federal University of Health Sciences of Porto Alegre, Sarmento Leite, 245, Room 514, Building 3. CEP 90050-170, Porto Alegre, RS, Brazil. fabiseco@yahoo.com.br.ORCID http://orcid.org/0000-0002-7927-1342
Francine L RahmeierGraduate Program in Pathology, Pathology Research Laboratory, Federal University of Health Sciences of Porto Alegre, Sarmento Leite, 245, Room 514, Building 3. CEP 90050-170, Porto Alegre, RS, Brazil.ORCID http://orcid.org/0000-0001-9540-5526
Marta SantinGraduate Program in Pathology, Pathology Research Laboratory, Federal University of Health Sciences of Porto Alegre, Sarmento Leite, 245, Room 514, Building 3. CEP 90050-170, Porto Alegre, RS, Brazil.ORCID http://orcid.org/0000-0003-2124-9270
Giuliano R GuimarãesGraduate Program in Pathology, Pathology Research Laboratory, Federal University of Health Sciences of Porto Alegre, Sarmento Leite, 245, Room 514, Building 3. CEP 90050-170, Porto Alegre, RS, Brazil.ORCID http://orcid.org/0000-0001-6961-5837
Jessié M GutierresGraduate Program in Pathology, Pathology Research Laboratory, Federal University of Health Sciences of Porto Alegre, Sarmento Leite, 245, Room 514, Building 3. CEP 90050-170, Porto Alegre, RS, Brazil.ORCID http://orcid.org/0000-0002-9574-4007
Marilda da C FernandesGraduate Program in Pathology, Pathology Research Laboratory, Federal University of Health Sciences of Porto Alegre, Sarmento Leite, 245, Room 514, Building 3. CEP 90050-170, Porto Alegre, RS, Brazil. marneuro22@gmail.com.ORCID http://orcid.org/0000-0003-4234-797X
Universidade Federal de Ciências da Saúde de Porto Alegre · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study investigated the neuroprotective effects of exendin-4 (EXE-4), an analog of the glucagon-like peptide 1 receptor (GLP-1R) on memory and on the neuronal populations that constitute the hippocampus of rats submitted to a sporadic dementia of Alzheimer's type (SDAT). Male Wistar rats received streptozotocin (STZ icv, 3 mg/kg diluted in aCFS, 5 µl/ventricle) and were treated for 21 days with EXE-4 (10 µg/kg, ip; saline as the vehicle). Four groups were formed: vehicle, EXE-4, STZ, and STZ + EXE-4. The groups were submitted to Y-Maze (YM), object recognition (ORT), and object displacement tasks (ODT) to assess learning and memory. The brains were used for immunohistochemical and immunofluorescent techniques with antibodies to NeuN, cleaved caspase-3 (CC3), PCNA, doublecortin (DCX), synaptophysin (SYP), and insulin receptor (IR). STZ worsened spatial memory in the YMT, as well as short-term (STM) and long-term (LTM) memories in the ORT and ODT, respectively. EXE-4 protected against memory impairment in STZ animals. STZ reduced mature neuron density (NeuN) and increased cell apoptosis (CC3) in the DG, CA1, and CA3. EXE-4 protected against neuronal death in all regions. EXE-4 increased PCNA

Indexed as

Cell DeathExenatideNeuronsAlzheimer DiseaseAnimalsCaspase 3Doublecortin ProteinHippocampusMaleMaze LearningMemory DisordersNeuroprotective AgentsPeptidesRatsRats, WistarReceptor, InsulinCaspase 3Dcx protein, ratDoublecortin ProteinExenatideNeuroprotective AgentsPeptidesReceptor, InsulinStreptozocinVenomsExendin-4HippocampusIncretin mimeticsMemoryNeuronsSDAT

Identifiers

PMID37919602
OpenAlexW4388300855

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.