Neocortex Gene Expression Correlates for LM_CUE_SUPPRESS measured in BXD RI Females obtained using GeneNetwork Neocortex ILM6v1.1 (Feb08) RankInv. The LM_CUE_SUPPRESS measures Suppression of activity in altered context under the domain Basal Behavior. The correlates were thresholded at a p-value of less than 0.001.
Authors:
Philip VM, Duvvuru S, Gomero B, Ansah TA, Blaha CD, Cook MN, Hamre KM, Lariviere WR, Matthews DB, Mittleman G, Goldowitz D, Chesler EJ
QTL for cocaine induced activation on Chr17 at D17MIT164 (6.59 Mbp , Build 37)
Description:
cocaine induced activation spans 0.00 - 31.59 Mbp (NCBI Build 37) on Chr17. This interval was obtained by using an interval width of 25 Mbp around the peak marker (Build 37, MGI, http://informatics.jax.org).
QTL for ethanol metabolism rate on Chr17 at NA (9.40 Mbp , Build 37)
Description:
ethanol metabolism rate spans 0.00 - 34.40 Mbp (NCBI Build 37) on Chr17. This interval was obtained by using an interval width of 25 Mbp around the peak marker (Build 37, MGI, http://informatics.jax.org).
Authors:
Grisel JE, Metten P, Wenger CD, Merrill CM, Crabbe JC
QTL for METH responses for body temperature on Chr17 at Zfp40 (17.81 Mbp , Build 37)
Description:
METH responses for body temperature spans 0.00 - 42.81 Mbp (NCBI Build 37) on Chr17. This interval was obtained by using an interval width of 25 Mbp around the peak marker (Build 37, MGI, http://informatics.jax.org).
QTL for ethanol conditioned taste aversion on Chr17 at D17Ncvs39 (23.83 Mbp , Build 37)
Description:
ethanol conditioned taste aversion spans 0.00 - 48.83 Mbp (NCBI Build 37) on Chr17. This interval was obtained by using an interval width of 25 Mbp around the peak marker (Build 37, MGI, http://informatics.jax.org).
Alcohol transcriptome changes in mice microglia p-value
Description:
Microglia are fundamentally important immune cells within the central nervous system (CNS) that respond to environmental challenges to maintain normal physiological processes. Alterations in steady-state cellular function and over-activation of microglia can facilitate the initiation and progression of neuropathological conditions such as Alzheimer’s disease, Multiple Sclerosis, and Major Depressive Disorder. Alcohol consumption disrupts signaling pathways including both innate and adaptive immune responses that are necessary for CNS homeostasis. Coordinate expression of these genes is not ascertained from an admixture of CNS cell-types, underscoring the importance of examining isolated cellular populations to reveal systematic gene expression changes arising from mature microglia. Unbiased RNA-Seq profiling was used to identify gene expression changes in isolated prefrontal cortical microglia in response to recurring bouts of voluntary alcohol drinking behavior. The voluntary ethanol paradigm utilizes long-term consumption ethanol that results in escalated alcohol intake and altered cortical plasticity that is seen in humans. Gene coexpression analysis identified a coordinately regulated group of genes, unique to microglia, that collectively are associated with alcohol consumption. Genes within this group are involved in toll-like receptor signaling and transforming growth factor beta signaling. Network connectivity of this group identified Siglech as a putative hub gene and highlighted the potential importance of proteases in the microglial response to chronic ethanol. In conclusion, we identified a distinctive microglial gene expression signature for neuroimmune responses related to alcohol consumption that provides valuable insight into microglia-specific changes underlying the development of substance abuse, and possibly other CNS disorders.
Authors:
Gizelle M McCarthy, Sean P Farris, Yuri A Blednov, R Adron Harris, R Dayne Mayfield
Chronic alcohol in mice DEG in astrocytes total homogenate p-value
Description:
Astrocytes play critical roles in central nervous system (CNS) homeostasis and are implicated in the pathogenesis of neurological and psychiatric conditions, including drug dependence. Little is known about the effects of chronic ethanol consumption on astrocyte gene expression. To address this gap in knowledge, we performed transcriptome-wide RNA sequencing of astrocytes isolated from the prefrontal cortex (PFC) of mice following chronic ethanol consumption. Differential expression analysis revealed ethanol-induced changes unique to astrocytes that were not identified in total homogenate preparations. Astrocyte-specific gene expression revealed calcium-related signaling and regulation of extracellular matrix genes as responses to chronic ethanol use. These findings emphasize the importance of investigating expression changes in specific cellular populations to define molecular consequences of chronic ethanol consumption in mammalian brain. Reported are differentially expressed genes in total homogenate after EOD (p < 0.05).
Authors:
Emma K Erickson, Sean P Farris, Yuri A Blednov, R Dayne Mayfield, R Adron Harris
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