Altered hippocampal transcriptome dynamics following sleep deprivation
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PROVIDER: PRJNA702096 | ENA |
REPOSITORIES: ENA
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Project description:Purpose: To comprehensively identify the gene expression changes that occur after acute sleep deprivation. Method: We performed total RNA sequencing after 5hours of sleep deprivation. Results: Using total RNA-sequencing, we show that acute sleep deprivation causes dramatic gene expression changes in the mouse hippocampus. Conclusion: This study provides insight into the biological impact of acute sleep deprivation.
2021-03-01 | GSE166831 | GEO
Project description:We used microarrays to detail the global programme of gene expression underlying the effect of sleep deprivation in the mouse hippocampus and identified distinct classes of regulated genes during this process. Hippocampal tissue was taken from sleep deprived mice and time-matched non-sleep-deprived control animals that were left undisturbed in their home cages during the sleep deprivation period for a total of 8 and 9 replicates per group. RNA was isolated and cDNA was synthesized from hippocampal tissue, and the sample from each animal was hybridized to a separate Affymetrix Mouse 430_2 microarray
2012-09-06 | E-GEOD-33302 | biostudies-arrayexpress
Project description:GABAergic transmission controls cortical sleep, however the molecular determinants of GABAergic control of this phenomenon are unknown. We used immunoprecipitation of the inhibitory postsynaptic protein gephyrin to identify gephyrin interactors at ZT6 (sleep) and ZT6 with sleep deprivation (ZT6SD).
2024-07-25 | PXD048929 | Pride
Project description:Widespread sleep deprivation is a continuing public health problem in the United States and worldwide affecting adolescents and adults. Acute sleep deprivation results in decrements in spatial memory and cognitive impairments. The hippocampus is vulnerable to acute sleep deprivation with changes in gene expression, cell signaling, and protein synthesis. Sleep deprivation also has long lasting effects on memory and performance that persist after recovery sleep, as seen in behavioral studies from invertebrates to humans. Although previous research has shown that acute sleep deprivation impacts gene expression, the extent to which sleep deprivation affects gene regulation remains unknown. Using an unbiased deep RNA sequencing approach, we investigated the effects of acute sleep deprivation on gene expression in the hippocampus. We identified 1,146 genes that were significantly dysregulated following sleep deprivation with 507 genes upregulated and 639 genes downregulated, including protein coding genes and long non-coding RNAs not previously identified as impacted by sleep deprivation. Notably, genes significantly upregulated after sleep deprivation were associated with RNA splicing and the nucleus. In contrast, downregulated genes were associated with cell adhesion, dendritic localization, the synapse, and postsynaptic membrane. Furthermore, we found through independent experiments analyzing a subset of genes that three hours of recovery sleep following acute sleep deprivation was sufficient to normalize mRNA abundance for most genes, although exceptions occurred for some genes that may affect RNA splicing or transcription. These results clearly demonstrate that sleep deprivation differentially regulates gene expression on multiple transcriptomic levels to impact hippocampal function.
| S-EPMC8361790 | biostudies-literature
Project description:Purpose: To determine the specific effects of 6 hours sleep deprivation after a learning event on the transcriptomes of microglia. Sleep deprivation can generate inflammatory responses in the neuronal environment. In turn, this inflammation increases sleep drive, leading to a rebound in sleep duration. Microglia, a type of support cell found exclusively in the brain, have previously been found to release of inflammatory signals and exhibit altered characteristics in response to sleep deprivation. Together, this suggests microglia may be partially responsible for the brain’s response to sleep deprivation through their inflammatory activity. In this study, we fully and selectively ablated microglia from the mouse brain and assessed resulting sleep, circadian, and sleep deprivation phenotypes. We find microglia are dispensable for both homeostatic sleep and circadian function and the sleep rebound response to sleep deprivation. However, we uncover a phenomenon by which microglia appear to be essential for the protection of synapses and associated memories formed during a period of sleep deprivation, further expanding the list of known functions for microglia in synaptic modulation.
2021-05-12 | GSE174231 | GEO
Project description:Sleep loss regulates gene expression throughout the brain and impacts learning and memory. However, the molecular consequences of sleep deprivation and the ability of subsequent sleep (recovery sleep) to restore baseline gene expression remain underexplored. Our goal here is to overview transcriptional changes at the gene level in the cortex of adult male wildtype mice in response to sleep loss and recovery sleep. This dataset constitutes an integration of novel data with two publicly available RNA-seq studies and contains 3, 5, and 6 hours of sleep deprivation and 2 and 6 hours of recovery sleep time points.
2024-08-19 | GSE237419 | GEO
Project description:Analysis of brain of Canton-S females deprived of sleep by perturbations during their normal sleep period. Perturbation effect also assessed during their active period to control for its effect during sleep deprivation. Results suggest processes altered during prolonged wakefulness and during sleep.
2007-07-06 | E-GEOD-4174 | biostudies-arrayexpress
Project description:Study Objectives: Sleep deprivation is highly prevalent and caused by conditions such as night shift work or illnesses like obstructive sleep apnea. Compromised sleep is proposed to play a role in several cardiovascular, immune related and neurodegenerative disorders. We recently published human serum proteome changes after a simulated night shift. This study aimed to further explore changes in the human blood serum after 6h of sleep deprivation at night by proteomics and systems biological databases. Methods: Human blood serum samples from 8 self-declared healthy females were analyzed using mass spectrometry and high-pressure liquid chromatography. Each subject was their own control, and two samples were taken from each subject, the first one after 6h of sleep at night and the second one after 6h of sleep deprivation the following night. Biological databases and bioinformatic software were used for systems biological analyzes and comparative analysis with other published sleep-related datasets. Results: Of 494 proteins, 66 were found to be differentially expressed after 6h of sleep deprivation at night. Functional enrichment analysis revealed associations of these proteins with several biological functions related to the regulation of cellular processes like protein- and ion-binding connected to platelet degranulation and blood coagulation, as well as associations with different curated gene sets. Conclusions: This study presents serum proteomic changes after 6h of sleep deprivation, supports previous findings that only 6h of sleep deprivation affects several biological processes and revealed a molecular signature of protein changes related to pathological conditions like altered coagulation and platelet function, impaired lipid and immune function and cancer. Keywords: Human blood serum, proteomics, sleep deprivation, cellular stress, functional enrichment analysis
2024-06-27 | PXD045729 | Pride
Project description:Sleep deprivation (SD) in young adults is associated with metabolic, stress and cognitive responses that are also characteristic of brain aging. Given that sleep architecture changes with age, including increased fragmentation and decreased slow wave activity, it seems reasonable to investigate potential molecular relationships between SD and aging in brain tissue. Here, we tested the hypothesis that young rats exposed to 24 or 72 hour SD would respond with stress and aging-like shifts in brain hippocampal CA1 gene expression. SD animals showed blood corticosterone and weight changes consistent with a stress response. Microarray results, validated by Western blot and comparison to prior SD studies, pointed to disruptions in neurotransmission, sleep pressure signaling, and macromolecular synthesis. In a separate experiment, animals exposed to 24 or 72 hour novel environment stress recapitulated nearly one third of the SD transcriptional profile, particularly upregulated apoptotic and immune signaling pathways. Compared to aging (based on three previously published independent hippocampal aging studies), SD transcriptional profiles agreed for neurogenesis and energy pathways. However, immune signaling, glial activity, macromolecular synthesis and neuronal function all showed an SD profile that was, at least in part, opposed by aging. We conclude that while stress and SD have discrete molecular signatures, they do show a subset of highly similar changes. However, the same could not be said of aging and SD, where a similar subset of genes is changed, but in partially divergent directions. Finally, this work identifies presynaptic vesicular release and intercellular adhesion molecular signatures as novel targets for future SD-countering therapeutics. Subjects: Male Fischer 344 rats (3-5 months old, Harlan, Indianapolis): 37 in cohort 1 and 32 in cohort 2. Subjects were assigned to one of 5 treatment groups: Home Cage-HC n =17; 24 hour sleep deprivation- 24SD n = 16; 72 hour sleep deprivation- 72SD n = 20; 24 hour novel environment stress- 24NES n = 10; 72 hour novel environment stress- 72NES n = 6. Cohorts 1 and 2 were combined for microarray analyses. Sleep Deprivation: The multiple platform modification (Coenen and van Luijtelaar, 1985) of the classic 'flower pot' (Mendelson et al., 1974) technique in which animals are placed on an elevated platform over water was used. Pairs of SD animals (cage mates) were sleep deprived for 24 or 72 hours. Novel Environment Stress (NES): NES animals were exposed to a novel environment, but were not constrained from sleeping. These NES animals paralleled the sleep deprivation exposure duration (24 hour- n = 10, and 72 hour- n = 6). Tissue Isolation: On the day that animals were removed from the SD chambers, they were anesthetized with CO2 gas and decapitated. Brains were removed and immediately placed in oxygenated artificial cerebrospinal fluid (aCSF) containing (in mM) 114NaCl, 2.5 KCl, 2MgCl2, 30 NaHCO3, 10 Glucose and 2.2CaCl2. Hippocampi were dissected as described previously (Blalock et al., 2003; Kadish et al., 2009). Briefly, dissected hippocampi were immersed in 0C oxygenated aCSF and placed on a chilled glass petri dish. The CA1 region was dissected along the long axis of the hippocampus. CA1 tissue was flash frozen and stored at -80C until further use. Microarray Protocol: GCOS quality control measures of background signal (74.9 ± 2.1 cohort 1; 59.8 ± 2.3 cohort 2) and RawQ (2.3 ± 0.1 cohort 1; 1.9 ± 0.1 cohort 2), as well as a chip x chip correlation matrix of signal intensity data pointed to a global decrease in background signal intensity in Cohort 2. To control for this, each gene expression values for HC, 24SD and 72SD was standardized separately within cohort 1 and cohort 2, and then the two cohorts were combined. This retained the variability of each cohort, but removed the 'cohort effect' from the data. Pre-statistical filtering retained 'A' grade probe sets that were uniquely annotated (Affymetrix, June 2011) with gene symbols and had at least 6 presence calls across all 71 chips. This criterion was selected based on factorial analysis demonstrating < 5% probability of 6 or more chips being rated present for a given probe set by chance (Blalock, unpublished observations).
2012-07-16 | E-GEOD-34424 | biostudies-arrayexpress
Project description:Analysis of the effects of sleep deprivation, recovery sleep, and three time-of-day controls on seven brain regions laser microdissected from mouse brain. The regions include the locus coeruleus, suprachiasmatic nucleus, hypocretin area, tuberomammillary nucleus, orbital cortex, posteromedial cortical amygdala, and entorhinal cortex. In this study, 7 brain regions were collected by laser microdissection from brain tissue of mice from 5 different treatment groups and used for microarray experiments. Four biological replicates were generated for each regionxcondition. Conditions are: SD, sleep deprivation for 6 hours from ZT0 - 6; SDC, time-of-day control for SD at ZT6; RS, recovery sleep for 4 hours following SD; RSC, time-of-day control for RS at ZT10; W, spontaneous waking at ZT18.
2010-08-16 | E-GEOD-23628 | biostudies-arrayexpress