Evidence map›Paper›PMID 24999626›Full record

ArticlePloS one2014

Developmental lead exposure alters synaptogenesis through inhibiting canonical Wnt pathway in vivo and in vitro.

Fan Hu, Li Xu, Zhi-Hua Liu, Meng-Meng Ge, Di-Yun Ruan, Hui-Li Wang

Abstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
–field-weighted citation impact
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

26 citing papers in PubMed.

  1. Review
  2. Gene-specific DNA methylation responses to PbEnvironmental epigenetics · 2026
    Article
  3. Article
  4. Neuropharmacological effects ofFrontiers in neurology · 2025
    Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Review
  11. Article
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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.

Fan HuSchool of Biotechnology and Food Engineering, Hefei University of Technology, Hefei, Anhui, China.
Li XuSchool of Biotechnology and Food Engineering, Hefei University of Technology, Hefei, Anhui, China.
Zhi-Hua LiuSchool of Biotechnology and Food Engineering, Hefei University of Technology, Hefei, Anhui, China.
Meng-Meng GeSchool of Biotechnology and Food Engineering, Hefei University of Technology, Hefei, Anhui, China.
Di-Yun RuanSchool of Biotechnology and Food Engineering, Hefei University of Technology, Hefei, Anhui, China; School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China.
Hui-Li WangSchool of Biotechnology and Food Engineering, Hefei University of Technology, Hefei, Anhui, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lead (Pb) exposure has been implicated in the impairment of synaptic plasticity in the developing hippocampus, but the mechanism remains unclear. Here, we investigated whether developmental lead exposure affects the dendritic spine formation through Wnt signaling pathway in vivo and in vitro. Sprague-Dawley rats were exposed to lead throughout the lactation period and Golgi-Cox staining method was used to examine the spine density of pyramidal neurons in the hippocampal CA1 area of rats. We found that lead exposure significantly decreased the spine density in both 14 and 21 days-old pups, accompanied by a significant age-dependent decline of the Wnt7a expression and stability of its downstream protein (β-catenin). Furthermore, in cultured hippocampal neurons, lead (0.1 and 1 µM lead acetate) significantly decreased the spine density in a dose-dependent manner. Exogenous Wnt7a application attenuated the decrease of spine density and increased the stability of the downstream molecules in Wnt signaling pathway. Together, our results suggest that lead has a negative impact on spine outgrowth in the developing hippocampus through altering the canonical Wnt pathway.

Indexed as

AnimalsDendritic SpinesEmbryo, MammalianHEK293 CellsHippocampusHumansLeadNeurotoxinsPyramidal CellsRatsRats, Sprague-DawleySynapsesTime FactorsWnt ProteinsWnt Signaling PathwayLeadNeurotoxinsWnt7a protein, mouseWnt Proteins

Identifiers

PMID24999626
PMCPMC4084981

What OpenQuestion holds

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Registered trials

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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.