Cargando…

Postsynaptic density radiation signature following space irradiation

Introduction: The response of the brain to space radiation is an important concern for astronauts during space missions. Therefore, we assessed the response of the brain to (28)Si ion irradiation (600 MeV/n), a heavy ion present in the space environment, on cognitive performance and whether the resp...

Descripción completa

Detalles Bibliográficos
Autores principales: Impey, Soren, Pelz, Carl, Riparip, Lara-Kirstie, Tafessu, Amanuel, Fareh, Fatema, Zuloaga, Damian G., Marzulla, Tessa, Stewart, Blair, Rosi, Susanna, Turker, Mitchell S., Raber, Jacob
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10334289/
https://www.ncbi.nlm.nih.gov/pubmed/37440997
http://dx.doi.org/10.3389/fphys.2023.1215535
_version_ 1785070828684050432
author Impey, Soren
Pelz, Carl
Riparip, Lara-Kirstie
Tafessu, Amanuel
Fareh, Fatema
Zuloaga, Damian G.
Marzulla, Tessa
Stewart, Blair
Rosi, Susanna
Turker, Mitchell S.
Raber, Jacob
author_facet Impey, Soren
Pelz, Carl
Riparip, Lara-Kirstie
Tafessu, Amanuel
Fareh, Fatema
Zuloaga, Damian G.
Marzulla, Tessa
Stewart, Blair
Rosi, Susanna
Turker, Mitchell S.
Raber, Jacob
author_sort Impey, Soren
collection PubMed
description Introduction: The response of the brain to space radiation is an important concern for astronauts during space missions. Therefore, we assessed the response of the brain to (28)Si ion irradiation (600 MeV/n), a heavy ion present in the space environment, on cognitive performance and whether the response is associated with altered DNA methylation in the hippocampus, a brain area important for cognitive performance. Methods: We determined the effects of (28)Si ion irradiation on object recognition, 6-month-old mice irradiated with (28)Si ions (600 MeV/n, 0.3, 0.6, and 0.9 Gy) and cognitively tested two weeks later. In addition, we determined if those effects were associated with alterations in hippocampal networks and/or hippocampal DNA methylation. Results: At 0.3 Gy, but not at 0.6 Gy or 0.9 Gy, (28)Si ion irradiation impaired cognition that correlated with altered gene expression and 5 hmC profiles that mapped to specific gene ontology pathways. Comparing hippocampal DNA hydroxymethylation following proton, (56)Fe ion, and (28)Si ion irradiation revealed a general space radiation synaptic signature with 45 genes that are associated with profound phenotypes. The most significant categories were glutamatergic synapse and postsynaptic density. Discussion: The brain’s response to space irradiation involves novel excitatory synapse and postsynaptic remodeling.
format Online
Article
Text
id pubmed-10334289
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher Frontiers Media S.A.
record_format MEDLINE/PubMed
spelling pubmed-103342892023-07-12 Postsynaptic density radiation signature following space irradiation Impey, Soren Pelz, Carl Riparip, Lara-Kirstie Tafessu, Amanuel Fareh, Fatema Zuloaga, Damian G. Marzulla, Tessa Stewart, Blair Rosi, Susanna Turker, Mitchell S. Raber, Jacob Front Physiol Physiology Introduction: The response of the brain to space radiation is an important concern for astronauts during space missions. Therefore, we assessed the response of the brain to (28)Si ion irradiation (600 MeV/n), a heavy ion present in the space environment, on cognitive performance and whether the response is associated with altered DNA methylation in the hippocampus, a brain area important for cognitive performance. Methods: We determined the effects of (28)Si ion irradiation on object recognition, 6-month-old mice irradiated with (28)Si ions (600 MeV/n, 0.3, 0.6, and 0.9 Gy) and cognitively tested two weeks later. In addition, we determined if those effects were associated with alterations in hippocampal networks and/or hippocampal DNA methylation. Results: At 0.3 Gy, but not at 0.6 Gy or 0.9 Gy, (28)Si ion irradiation impaired cognition that correlated with altered gene expression and 5 hmC profiles that mapped to specific gene ontology pathways. Comparing hippocampal DNA hydroxymethylation following proton, (56)Fe ion, and (28)Si ion irradiation revealed a general space radiation synaptic signature with 45 genes that are associated with profound phenotypes. The most significant categories were glutamatergic synapse and postsynaptic density. Discussion: The brain’s response to space irradiation involves novel excitatory synapse and postsynaptic remodeling. Frontiers Media S.A. 2023-06-27 /pmc/articles/PMC10334289/ /pubmed/37440997 http://dx.doi.org/10.3389/fphys.2023.1215535 Text en Copyright © 2023 Impey, Pelz, Riparip, Tafessu, Fareh, Zuloaga, Marzulla, Stewart, Rosi, Turker and Raber. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Physiology
Impey, Soren
Pelz, Carl
Riparip, Lara-Kirstie
Tafessu, Amanuel
Fareh, Fatema
Zuloaga, Damian G.
Marzulla, Tessa
Stewart, Blair
Rosi, Susanna
Turker, Mitchell S.
Raber, Jacob
Postsynaptic density radiation signature following space irradiation
title Postsynaptic density radiation signature following space irradiation
title_full Postsynaptic density radiation signature following space irradiation
title_fullStr Postsynaptic density radiation signature following space irradiation
title_full_unstemmed Postsynaptic density radiation signature following space irradiation
title_short Postsynaptic density radiation signature following space irradiation
title_sort postsynaptic density radiation signature following space irradiation
topic Physiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10334289/
https://www.ncbi.nlm.nih.gov/pubmed/37440997
http://dx.doi.org/10.3389/fphys.2023.1215535
work_keys_str_mv AT impeysoren postsynapticdensityradiationsignaturefollowingspaceirradiation
AT pelzcarl postsynapticdensityradiationsignaturefollowingspaceirradiation
AT ripariplarakirstie postsynapticdensityradiationsignaturefollowingspaceirradiation
AT tafessuamanuel postsynapticdensityradiationsignaturefollowingspaceirradiation
AT farehfatema postsynapticdensityradiationsignaturefollowingspaceirradiation
AT zuloagadamiang postsynapticdensityradiationsignaturefollowingspaceirradiation
AT marzullatessa postsynapticdensityradiationsignaturefollowingspaceirradiation
AT stewartblair postsynapticdensityradiationsignaturefollowingspaceirradiation
AT rosisusanna postsynapticdensityradiationsignaturefollowingspaceirradiation
AT turkermitchells postsynapticdensityradiationsignaturefollowingspaceirradiation
AT raberjacob postsynapticdensityradiationsignaturefollowingspaceirradiation