Cited by 57Neuroinflammation and Neurodegeneration MechanismsEstrogen and related hormone effectsNeurogenesis and neuroplasticity mechanisms

A critical period in Purkinje cell development is mediated by local estradiol synthesis, disrupted by inflammation and has enduring consequences only for males

Open access
Hoffman, Jessica F., Wright, Christopher L., McCarthy, Margaret M.·2016·The Journal of Neuroscience

Abstract

UNLABELLED: Identifying and understanding critical periods in brain development is essential to decoding the long-term impact of widespread, poorly defined, and frequently occurring insults such as inflammation. Using the laboratory rat Rattus norvegicus, we have discovered a narrowly constrained critical period in Purkinje neuron development subject to dysregulation by inflammation. The onset and offset of heightened vulnerability are attributed to a tightly orchestrated gene expression profile present only during the second postnatal week and not the first or third weeks. Genes expressed during this time code for enzymes and receptors which are critical not only for prostaglandin production and activity but also for estradiol production via the aromatase enzyme and estradiol action via the α isoform of the estrogen receptor. The two synthetic pathways are connected by prostaglandin E2 (PGE2) activation of the aromatase enzyme, as we reported previously (Dean et al., 2012b) and confirm here. Dysregulation of the PGE2-estradiol pathway during the second week by treatment with PGE2 or lipopolysaccharides produces enduring consequences as a result of reduced growth of Purkinje dendritic trees and impaired juvenile social play behavior, but only in males. The deleterious consequences of inflammation locally in the cerebellum are prevented by peripheral treatment with the cyclooxygenase inhibitor nimesulide or the aromatase inhibitor formestane. These findings highlight a novel regulatory pathway that creates a critical period in brain development vulnerable to dysregulation by inflammation. SIGNIFICANCE STATEMENT: The cerebellum is increasingly appreciated for its role in social, emotional, and cognitive behaviors. It is consistently and severely affected in neuropsychiatric disorders originating during development, such as autism spectrum disorder and schizophrenia. We have identified a critical period in rat development during the second week of life that is dysregulated by inflammatory insults. An intrinsic program of gene expression determines the critical period. The enduring consequences of inflammation during the second postnatal week are stunted dendrites of the cerebellum's principal neurons, Purkinje cells, and impairments in later social behavior. These changes are not evident if inflammation occurs during the first or third week, highlighting the importance of fine-grained analyses of developmental processes and the factors that influence them.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1523/jneurosci.1262-16.2016

Cites

54 of 54 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

1 of the 55 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Hoffman, J. F., Wright, C. L., & McCarthy, M. M.
Affiliations
University of Maryland, Baltimore (US)
Venue
The Journal of Neuroscience
Published
2016-09-28
Volume
36
Issue
39
Pages
10039-10049
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2525963595
Cited by
57
References
55
Citations by year
2026: 2 · 2025: 5 · 2024: 4 · 2023: 6 · 2022: 5 · 2021: 7 · 2020: 5 · 2019: 9 · 2018: 6 · 2017: 7 · 2016: 1
FWCI
4.20
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Institute of Mental Health (F31MH096532, R01MH091424)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
critical period, cerebellum, inflammation, estradiol synthesis, aromatase, prostaglandin E2, estrogen receptor alpha, lipopolysaccharide, dendritic development, social play, sex differences, nimesulide, formestane, cyclooxygenase inhibition, autism spectrum disorder, schizophrenia
MeSH terms
Aging, Animals, Critical Period, Psychological, Dendrites, Estradiol, Inflammation, Male, Purkinje Cells, Rats, Sprague-Dawley, Gene Expression Regulation, Developmental, Cell Enlargement, Rats, Neurogenesis

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review