Evidence map›Paper›PMID 23054056›Full record

ArticleEndocrinology2012

Fetal and neonatal iron deficiency reduces thyroid hormone-responsive gene mRNA levels in the neonatal rat hippocampus and cerebral cortex.

Thomas W Bastian, Jeremy A Anderson, Stephanie J Fretham, Joseph R Prohaska, Michael K Georgieff, Grant W Anderson

Open access · bronzeAbstract read
In one paragraph

Article in Endocrinology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.3field-weighted citation impact, top 13% 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

18 citing papers in PubMed, 38 citations in OpenAlex.

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  10. Review
  11. Chronic anemia and thyroid function.Acta bio-medica : Atenei Parmensis · 2017
    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

6 authors at 2 institutions in 1 country.

Thomas W BastianDepartment of Pharmacy Practice and Pharmaceutical Sciences, University of Minnesota Duluth, College of Pharmacy, Minnesota 55812, USA.
Jeremy A Anderson
Stephanie J Fretham
Joseph R Prohaska
Michael K Georgieff
Grant W Anderson
University of Minnesota, Duluth · USUniversity of Minnesota · US

Funding

PREDOCTORAL TRAINING OF NEUROSCIENTISTST32GM008471 · NIGMS · UNIVERSITY OF MINNESOTA TWIN CITIES · PI EBNER, TIMOTHY J · 1993 to 2017
$4.9M
NEWBORN IRON DEFICIENCYR01HD029421 · NICHD · UNIVERSITY OF MINNESOTA TWIN CITIES · PI GEORGIEFF, MICHAEL K. · 2000 to 2015
$4.4M
NUTRITIONAL COPPER STATUS AND THE NERVOUS SYSTEMR01HD039708 · NICHD · UNIVERSITY OF MINNESOTA DULUTH · PI PROHASKA, JOSEPH ROBERT · 2001 to 2010
$1.5M
Copper, Iron and Thyroid Hormone Deficiency During Brain DevelopmentR03HD055423 · NICHD · UNIVERSITY OF MINNESOTA · PI ANDERSON, GRANT W, GEORGIEFF, MICHAEL K. · 2008 to 2009
$134k
The Effects of Early Iron Deficiency on mTOR SignalingF31NS063667 · NINDS · UNIVERSITY OF MINNESOTA · PI FRETHAM, STEPHANIE JB · 2008 to 2010
$65k
NICHD NIH HHS 2R01HD29421-16NICHD NIH HHS 5R03HD055423-02NICHD NIH HHS R01 HD029421NICHD NIH HHS R01 HD039708NICHD NIH HHS R01HD039708-08NICHD NIH HHS R03 HD055423NIGMS NIH HHS T32 GM008471NINDS NIH HHS F31 NS063667NINDS NIH HHS F31-NS063667
6 · The paper itself

Abstract

Copper (Cu), iron (Fe), and thyroid hormone (TH) deficiencies produce similar defects in late brain development including hypomyelination of axons and impaired synapse formation and function, suggesting that these micronutrient deficiencies share a common mechanism contributing to these derangements. We previously demonstrated that fetal/neonatal Cu and Fe deficiencies lower circulating TH concentrations in neonatal rats. Fe deficiency also reduces whole-brain T(3) content, suggesting impaired TH action in the developing Fe-deficient brain. We hypothesized that fetal/neonatal Cu and Fe deficiencies will produce mild or moderate TH deficiencies and will impair TH-responsive gene expression in the neonatal cerebral cortex and hippocampus. To test this hypothesis, we rendered pregnant Sprague Dawley rats Cu-, Fe-, or TH-deficient from early gestation through postnatal d 10 (P10). Mild and moderate TH deficiencies were induced by 1 and 3 ppm propylthiouracil treatment, respectively. Cu deficiency did not significantly alter serum or tissue TH concentrations or TH-responsive brain mRNA expression. Fe deficiency significantly lowered P10 serum total T(3) (45%), serum total T(4) (52%), whole brain T(3) (14%), and hippocampal T(3) (18%) concentrations, producing a mild TH deficiency similar to 1 ppm propylthiouracil treatment. Fe deficiency lowered Pvalb, Enpp6, and Mbp mRNA levels in the P10 hippocampus. Fe deficiency also altered Hairless, Dbm, and Dio2 mRNA levels in the P10 cerebral cortex. These results suggest that some of the brain defects associated with Fe deficiency may be mediated through altered thyroidal status and the concomitant alterations in TH-responsive gene transcription.

Indexed as

Iron DeficienciesAnimalsAnimals, NewbornCerebral CortexCopperFemaleGene ExpressionHippocampusMalePregnancyRatsRats, Sprague-DawleyThyroid GlandThyroid HormonesCopperThyroid Hormones

Identifiers

PMID23054056
PMCPMC3473211
OpenAlexW2117871868

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.