Evidence map›Paper›PMID 31980847›Full record

ArticleExperimental brain research2020

In utero exposure to valproic acid disrupts ascending projections to the central nucleus of the inferior colliculus from the auditory brainstem.

Ryan Zimmerman, Amanda Smith, Tatiana Fech, Yusra Mansour, Randy J Kulesza

Abstract read
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In one paragraph

Article in Experimental brain research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 2 pooled it
2.2field-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

17 citing papers in PubMed, 2 syntheses or guidelines pooled it, 42 citations in OpenAlex.

  1. Auditory processing in rodent models of autism: a systematic review.Journal of neurodevelopmental disorders · 2022
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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

5 authors at 1 institution in 1 country.

Ryan ZimmermanDepartment of Anatomy, Lake Erie College of Osteopathic Medicine, 1858 West Grandview Blvd, Erie, PA, 16504, USA.
Amanda SmithDepartment of Anatomy, Lake Erie College of Osteopathic Medicine, 1858 West Grandview Blvd, Erie, PA, 16504, USA.
Tatiana FechDepartment of Anatomy, Lake Erie College of Osteopathic Medicine, 1858 West Grandview Blvd, Erie, PA, 16504, USA.
Yusra MansourDepartment of Anatomy, Lake Erie College of Osteopathic Medicine, 1858 West Grandview Blvd, Erie, PA, 16504, USA.
Randy J KuleszaDepartment of Anatomy, Lake Erie College of Osteopathic Medicine, 1858 West Grandview Blvd, Erie, PA, 16504, USA. rkulesza@lecom.edu.
Lake Erie College of Osteopathic Medicine · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Prenatal exposure to the antiepileptic valproic acid (VPA) is associated with an increased risk of autism spectrum disorder (ASD) in humans. Accordingly, in utero exposure to VPA is a validated and biologically relevant animal model of ASD. The majority of individuals with ASD exhibit some degree of auditory dysfunction, ranging from deafness to hypersensitivity. Animals exposed to VPA in utero have abnormal tonotopic maps and responses in the cerebral cortex and hyperactivation, hypoplasia, abnormal neuronal morphology and reduced calcium binding protein expression throughout the auditory brainstem nuclei. Further, our previous work suggests that GABAergic neuronal populations may be more severely impacted by in utero VPA exposure. However, the axonal projection patterns of brainstem nuclei to the inferior colliculus (IC) have not been investigated in VPA-exposed animals. Herein, we use stereotaxic injections of the retrograde tracer Fast Blue into the central nucleus of the IC (CNIC) and examine the proportions of retrogradely labeled neurons in the nuclei of the lateral lemniscus, superior olivary complex and cochlear nuclei. Our results indicate that not only are there fewer neurons in the auditory brainstem after VPA exposure, but also that fewer neurons are retrogradely labeled from the CNIC. Together, our results indicate that in utero VPA exposure may result in altered patterns of input to the auditory midbrain.

Indexed as

AnimalsAuditory PathwaysAutism Spectrum DisorderBrain StemDisease Models, AnimalFemaleInferior ColliculiMesencephalonNeuronsPregnancyPrenatal Exposure Delayed EffectsValproic AcidValproic AcidAuditoryAutismBrainstemHearingTract tracing

Identifiers

PMID31980847
OpenAlexW3001695910

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.