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Hippocampal transcriptome of young adult and middle-aged ES animals

ABSTRACT: This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

ORGANISM(S): Rattus norvegicus

SUBMITTER: Deepika Suri

PROVIDER: E-GEOD-29637 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Early stress evokes temporally distinct consequences on the hippocampal transcriptome, anxiety and cognitive behaviour.

Suri Deepika D Bhattacharya Amrita A Vaidya Vidita A VA

The international journal of neuropsychopharmacology 20130912 2

The early stress of maternal separation (ES) exerts long-lasting effects on cognition and anxiety. Recent evidence indicates enhanced hippocampus-dependent spatial learning in young adult ES animals, which shifts towards a decline in long-term memory in middle-aged life. Further, we find that ES animals exhibit enhanced anxiety in young adulthood that does not persist into middle-aged life. Here, we demonstrate unique, predominantly non-overlapping, hippocampal transcriptomes in young adult and ...[more]

PMID: 24025219

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To examine the influence of the early stress of maternal separation on the hippocampal transcriptome in middle-aged life

Project description:In this study, we examined the consequences of the early stress (ES) of maternal separation on hippocampal gene expression in middle-aged animals. Middle-aged (15 months old) ES animals exhibit hippocampal transcriptome changes with a significant regulation of genes associated with ion binding, transcriptional regulation, cellular projection, cellular stress responsive pathways, neuronal development and chromatin remodeling. Agilent one-color experiment, Agilent-024724 Genotypic-designed Custom Rattus Norvegicus 8x15k; Organism: Rattus norvegicus; Labeling kit: Agilent Quick-Amp labeling Kit (p/n5190-0442); Biological replicates: 5 per early stress group, 3 per control group

2013-10-11 | E-GEOD-29414 | biostudies-arrayexpress

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Project description:In this study, we examined the consequences of the early stress (ES) of maternal separation on hippocampal gene expression in young adulthood. Young adult (2 months old) ES animals exhibit hippocampal transcriptome changes with a significant regulation of genes associated with intracellular signaling, MAP kinase signaling, plasma membrane function, neurotransmitter and neuropeptide receptors and cytoskeletal components. Agilent one-color experiment, Agilent-024724 Genotypic-designed Custom Rattus Norvegicus 8x15k; Organism: Rattus norvegicus; Labeling kit: Agilent Quick-Amp labeling Kit (p/n5190-0442); Biological replicates: 4 per treatment group.

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Transcription profiling of rat cerebellum and hippocampus following exposure to neurotoxicant Aroclor 1254

Project description:Pregnant rats (Long-Evans) were dosed perinatally with 0 or 6Â mg/kg/day of Aroclor 1254 from gestation day 6 through postnatal day (PND) 21. Gene expression in cerebellum and hippocampus from PND7 and PND14 animals was analyzed with an emphasis on developmental aspects. Changes in gene expression (>= 1.5 fold) in control animals identified normal developmental changes. These basal levels of expression were compared to data from Aroclor 1254-treated animals to determine the impact of gestational PCB exposure on developmental parameters. The results indicate that the expression of a number of developmental genes related to cell cycle, synaptic function, cell maintenance, and neurogenesis is significantly altered from PND7 to PND14. Aroclor 1254 treatment appears to dampen the overall growth-related gene expression levels in both regions with the effect being more pronounced in the cerebellum. Functional analysis suggests that Aroclor 1254 delays maturation of the developing nervous system, with the consequences dependent on the ontological state of the brain area and the functional role of the individual gene. Experiment Overall Design: Pregnant rats (Long-Evans) were dosed perinatally with 0 or 6Â mg/kg/day of Aroclor 1254 from gestation day 6 through postnatal day (PND) 21. Gene expression in cerebellum and hippocampus from PND7 and PND14 animals was analyzed with an emphasis on developmental aspects.

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VSL#3 protects against development of visceral pain in the neonatal maternal separation model: A whole genome microarray study

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2015-05-01 | E-MTAB-2617 | biostudies-arrayexpress

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