Evidence map›Paper›PMID 19759887›Full record

ArticleClinics (Sao Paulo, Brazil)2009

Memantine prevents cardiomyocytes nuclear size reduction in the left ventricle of rats exposed to cold stress.

Adriano Meneghini, Celso Ferreira, Luiz Carlos de Abreu, Vitor E Valenti, Marcelo Ferreira, Celso F Filho, Neif Murad

Open access · goldAbstract read
In one paragraph

Article in Clinics (Sao Paulo, Brazil), 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 4 pooled it
2.7field-weighted citation impact, top 11% 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, 4 syntheses or guidelines pooled it, 29 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Article
  6. Review
  7. Article
  8. A review on animal models for screening potential anti-stress agents.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2011
    Review
  9. Article
  10. Sudden cardiac death athletes: a systematic review.Sports medicine, arthroscopy, rehabilitation, therapy & technology : SMARTT · 2010
    Article
  11. Article
  12. 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 at 3 institutions in 1 country.

Adriano MeneghiniDepartamento de Clínica Médica, Disciplina de Cardiologia, Faculdade de Medicina do ABC, Santo André/SP, Brasil.
Celso Ferreira
Luiz Carlos de Abreu
Vitor E Valenti
Marcelo Ferreira
Celso F Filho
Neif Murad
Faculdade de Medicina do ABC · BRUniversidade Federal de São Paulo · BRUniversidade de São Paulo · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesMemantine is an N-methyl-d-aspartate (NMDA) glutamate receptor antagonist used to treat Alzheimer's disease. Previous studies have suggested that receptor blockers act as neuroprotective agents; however, no study has specifically investigated the impact that these drugs have on the heart. We sought to evaluate the effects of memantine on nuclear size reduction in cardiac cells exposed to cold stress.

methodWe used male EPM-Wistar rats (n=40) divided into 4 groups: 1) Matched control (CON); 2) Memantine-treated rats (MEM); 3) Rats undergoing induced hypothermia (IH) and 4) Rats undergoing induced hypothermia that were also treated with memantine (IHM). Animals in the MEM and IHM groups were treated by oral gavage administration of 20 mg/kg/day memantine over an eight-day period. Animals in the IH and IHM groups were submitted to 4 hours of hypothermia in a controlled environment with a temperature of -8 degrees C on the last day of the study.

resultsThe MEM group had the largest cardiomyocyte nuclear size (151 +/- 3.5 microm(3) vs. CON: 142 +/- 2.3 microm(3); p<0.05), while the IH group had the smallest mean value of nuclear size. The nuclear size of the IHM group was preserved (125 +/- 2.9 microm(3)) compared to the IH group (108 +/- 1.7 microm(3); p<0.05).

conclusionMemantine prevented the nuclear size reduction of cardiomyocytes in rats exposed to cold stress.

Indexed as

AnimalsCell Nucleus SizeExcitatory Amino Acid AntagonistsHeart VentriclesHypothermia, InducedMaleMemantineMyocytes, CardiacRatsRats, WistarStress, PhysiologicalExcitatory Amino Acid AntagonistsMemantineCardiac myocytesCardiotonic agentsCell nucleus structuresHeartMemantine

Identifiers

PMID19759887
PMCPMC2745134
OpenAlexW2045867767

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.