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
Differentially expressed genes in male cerebellum from microarray analysis. MeHg stands for Methyl Mercury. after 1.99 mg/kg of MeHg MeHg was compared against NCM, OCs, PCBs ant PTU via differential expression.
Authors:
Padhi BK, Pelletier G, Williams A, Berndt-Weis L, Yauk C, Bowers WJ, Chu I
Differentially expressed genes in male cerebellum from microarray analysis. OC stands for Organochlorine Pesticides. Differential expression of OCs were compared against differential expression of MeHg, NCM, PCBs and PTU.
Authors:
Padhi BK, Pelletier G, Williams A, Berndt-Weis L, Yauk C, Bowers WJ, Chu I
Differentially expressed genes in male cerebellum from microarray analysis. PTU stands for Propylthiouracil. Differential expression of PTU were compared against differential expression of MeHg, NCM, PCBs and OCs. PTUs were used as a positive control
Authors:
Padhi BK, Pelletier G, Williams A, Berndt-Weis L, Yauk C, Bowers WJ, Chu I
Differentially expressed genes in male cerebellum from microarray analysis. PCB stands for polychlorinated biphenyls. Differential expression of PCB were compared against differential expression of MeHg, NCM, OCs and PTU.
Authors:
Padhi BK, Pelletier G, Williams A, Berndt-Weis L, Yauk C, Bowers WJ, Chu I
Affymetrix oligonucleotide arrays to assess gene expression in brains of mice selectively bred for differences in acute functional tolerance to an incoordinating effect of ethanol (HAFT mice, high acute functional tolerance; LAFT mice, low acute functional tolerance)
Affymetrix oligonucleotide arrays to assess gene expression in brains of mice selectively bred for differences in acute functional tolerance to an incoordinating effect of ethanol (HAFT mice, high acute functional tolerance; LAFT mice, low acute functional tolerance)
High-density filter-based cDNA microarrays were used to assess differential expression of genes in the dorsal hippocampus of rats treated with 12% ethanol or tap water for 15 months. Following treatment, an analysis of ethanol-treated versus control rats was done.These are genes that were downregulated during the chronic ethanol treatment.
Cerebellum Gene Expression Correlates for VOCA_THRESHOLD measured in BXD RI Females obtained using SJUT Cerebellum mRNA M430 (Mar05) RMA. The VOCA_THRESHOLD measures Vocalization Threshold - shock intensity (mA) under the domain Stress Vocalization. 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
cocaine related behavior 16 (Cocrb16) spans 126.65 - 156 Mbp (NCBI Build 37) on Chr 4. Obtained from MGI (http://www.informatics.jax.org) by searching for QTLs containing the keyword "Cocaine".
cocaine and amphetamine-regulated transcript QTL 2 (Crq2) spans 99.841331 - 149.841331 Mbp (NCBI Build 37) on Chr 4. Obtained from MGI (http://www.informatics.jax.org) by searching for QTLs containing the keyword .
alcohol preference 3 QTL 124.51 - 174.51 Mbp (NCBI Build 37) on Chr4. 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 cocaine related behavior on Chr4 at 34M15-SP6 (151.65 Mbp , Build 37)
Description:
cocaine related behavior spans 126.65 - 176.65 Mbp (NCBI Build 37) on Chr4. 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 Chr4 at D4Ncvs25 (151.65 Mbp , Build 37)
Description:
ethanol conditioned taste aversion spans 126.65 - 176.65 Mbp (NCBI Build 37) on Chr4. 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 METH responses for climbing on Chr4 at Sac (151.65 Mbp , Build 37)
Description:
METH responses for climbing spans 126.65 - 176.65 Mbp (NCBI Build 37) on Chr4. This interval was obtained by using an interval width of 25 Mbp around the peak marker (Build 37, MGI, http://informatics.jax.org).
alcohol response 4 (a.k.a. high-dose ethanol actions) is associated with neurotensin immunoreactivity and sleep time after alcohol administration mapped to 55 cM on mouse Chromosome 9 near D9Mit12 (P=0.0006). This locus is named Alcrsp4 (alcohol response 4). Potential candidate genes found in this region are Chrna3 and Gnai2. This interval was obtained by using an interval width of 25 Mbp around the peak marker (Build 37, MGI, http://informatics.jax.org).
Authors:
Erwin VG, Markel PD, Johnson TE, Gehle VM, Jones BC
Chronic cocaine - Cocaine-paired (conditioned place preference) vs. Control (saline or cocaine-non-paired) DNA microarray All genes on microarray presented After the pre-conditioning phase where animals were allowed access to either compartment for 15 minutes for 4 consecutive days, the conditioning phase for the cocaine-paired groups and cocaine non-paired groups began, consisting of eight subsequent daily sessions. For both groups, cocaine (10 mg / kg) or saline injections were administered on alternate days. For the cocaine-paired groups, rats were immediately placed in one of the two compartments for 30 min with the door in place restricting a z transformation followed by z test and anova followed by Student-Newman-Keuls' post hoc test. Gene expression profile was assessed 24 h after the last conditioning session that corresponded to 48 h after last cocaine exposure, when drug has been eliminated from the body and transient transcriptional changes are likely to be minimal. Therefore, changes in gene expression at this time-point are likely to reflect longer lasting adaptations that may account for maintenance of cocaine-induced memories. The complete lists of normalized gene expression values for the hippocampus of saline-treated, cocaine non-paired and cocaine-paired groups are presented. Analyses revealed that 214 transcripts were differentially regulated in the hippocampus of cocaine-paired rats vs. non-paired and saline-treated controls. Cocaine-induced conditioned place preference caused significant increases in the expression of 151 genes and caused decreases in the expression of 63 genes. (NIF Table ID 130.1 [83])
Authors:
Krasnova IN, Li SM, Wood WH, McCoy MT, Prabhu VV, Becker KG, Katz JL, Cadet JL
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