Evidence map›Paper›PMID 18566112›Full record

ArticleEndocrinology2008

Maternal hypothyroxinemia impairs spatial learning and synaptic nature and function in the offspring.

M C Opazo, A Gianini, F Pancetti, G Azkcona, L Alarcón, R Lizana, V Noches, P A Gonzalez, M P Marassi, M Porto and 7 more

Erratum issuedOpen access · greenAbstract read
In one paragraph

Article in Endocrinology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
2.9field-weighted citation impact, top 8% 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

46 citing papers in PubMed, 96 citations in OpenAlex.

  1. Trial
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  3. Article
  4. Critical Role of Iodine and Thyroid Hormones During Pregnancy.International journal of molecular sciences · 2025
    Review
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4 · The record

Corrections and comments

  • Erratum issued
    Porto, M [corrected to Marassi, M P]
5 · Who and what money

Authors and funding

17 authors at 8 institutions in 4 countries.

M C OpazoLaboratorio de Biología Celular y Farmacología, Departamento de Ciencias Biológicas, Universidad Nacional Andrés Bello, República 217 Santiago, Chile.
A Gianini
F Pancetti
G Azkcona
L Alarcón
R Lizana
V Noches
P A Gonzalez
M P Marassi
M Porto
S Mora
D Rosenthal
E Eugenin
D Naranjo
S M Bueno
A M Kalergis
C A Riedel
Universidad Andrés Bello · CLUniversidade Federal do Rio de Janeiro · BRMillennium Institute on Immunology and Immunotherapy · CLPontificia Universidad Católica de Chile · CLUniversidad Católica del Norte · CLUniversity of the Basque Country · ESUniversity of Valparaíso · CLYeshiva University · US

Funding

Astrocyte connexin43 containing channels amplify CNS dysfunction in NeuroAIDSR01MH096625 · NIMH · UNIV OF MED/DENT OF NJ-NJ MEDICAL SCHOOL · PI EUGENIN, ELISEO A · 2012 to 2020
$4.5M
NIMH NIH HHS R01 MH096625
6 · The paper itself

Abstract

Neurological deficits in the offspring caused by human maternal hypothyroxinemia are thought to be irreversible. To understand the mechanism responsible for these neurological alterations, we induced maternal hypothyroxinemia in pregnant rats. Behavior and synapse function were evaluated in the offspring of thyroid hormone-deficient rats. Our data indicate that, when compared with controls, hypothyroxinemic mothers bear litters that, in adulthood, show prolonged latencies during the learning process in the water maze test. Impaired learning capacity caused by hypothyroxinemia was consistent with cellular and molecular alterations, including: 1) lack of increase of phosphorylated c-fos on the second day of the water maze test; 2) impaired induction of long-term potentiation in response to theta-burst stimulation to the Schaffer collateral pathway in the area 1 of the hippocampus Ammon's horn stratum radiatum, despite normal responses for input/output experiments; 3) increase of postsynaptic density protein 95 (PSD-95), N-methyl-D-aspartic acid receptor subunit 1, and tyrosine receptor kinase B levels in brain extracts; and 4) significant increase of PSD-95 at the PSDs and failure of this molecule to colocalize with N-methyl-D-aspartic acid receptor subunit 1, as it was shown by control rats. Our findings suggest that maternal hypothyroxinemia is a harmful condition for the offspring that can affect key molecular components for synaptic function and spatial learning.

Indexed as

Age FactorsAnimalsCognition DisordersDisks Large Homolog 4 ProteinFemaleHypothyroidismImidazolesIntracellular Signaling Peptides and ProteinsLong-Term PotentiationMaleMaze LearningMembrane ProteinsPhosphorylationPregnancyPregnancy ComplicationsPrenatal Exposure Delayed Effects2-mercapto-1-methylimidazoleDisks Large Homolog 4 ProteinDlg4 protein, ratImidazolesIntracellular Signaling Peptides and ProteinsMembrane ProteinsNR1 NMDA receptorProto-Oncogene Proteins c-fosReceptors, N-Methyl-D-AspartateThyroxine

Identifiers

PMID18566112
PMCPMC5398426
OpenAlexW2111652158

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.