Unknown,Transcriptomics,Genomics,Proteomics

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Radiation exposure of mouse embryonic brain - 2 h, 24 h post-irradiation


ABSTRACT: The mammalian brain is especially sensitive to ionizing radiation during development, as shown by the increased occurrence of mental retardation and small head size in children who were in utero exposed to ionizing radiation after the atomic bombings of Hiroshima and Nagasaki. These effects of prenatal irradiation can be mimicked by irradiation of mouse embryos during the organogenesis period. In order to better understand the early effects of ionizing radiation on the embryonic brain and immature neurons, we performed a microarray analysis on brains from mice irradiated with different doses (0.0, 0.1, 0.2, 0.5 and 1.0 Gy) at E11. RNA was extracted at either 2 or 24 h post-irradiation.

ORGANISM(S): Mus musculus

SUBMITTER: Roel Quintens 

PROVIDER: E-MTAB-2720 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications


<h4>Background</h4>In humans, in utero exposure to ionising radiation results in an increased prevalence of neurological aberrations, such as small head size, mental retardation and decreased IQ levels. Yet, the association between early damaging events and long-term neuronal anomalies remains largely elusive.<h4>Methods</h4>Mice were exposed to different X-ray doses, ranging between 0.0 and 1.0 Gy, at embryonic days (E) 10, 11 or 12 and subjected to behavioural tests at 12 weeks of age. Underly  ...[more]

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