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Amydala transcriptome changes in germ-free mice

ABSTRACT: We sequenced mRNA from 12 samples extracted from mouse amygdala tissue to generate the first amygdala-specific murine transcriptome for germ-free mice (GF), conventionally raised controls (CON) and germ-free mice that have been colonized with normal microbiota from postnatal day 21 (exGF).

ORGANISM(S): Mus musculus

PROVIDER: GSE66828 | GEO | 2015/07/09

SECONDARY ACCESSION(S): PRJNA278050

REPOSITORIES: GEO

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Amydala transcriptome changes in germ-free mice

Project description:We sequenced mRNA from 12 samples extracted from mouse amygdala tissue to generate the first amygdala-specific murine transcriptome for germ-free mice (GF), conventionally raised controls (CON) and germ-free mice that have been colonized with normal microbiota from postnatal day 21 (exGF). Equal amounts of RNA from two to three animals were pooled to yield 4 samples per group (CON, GF, and exGF). Pairwise comparisons for CONvsGF, CONvsexGF, GFvsexGF were performed using DESeq2.

2015-07-09 | E-GEOD-66828 | biostudies-arrayexpress

Medial prefrontal cortex transcriptome changes in germ-free mice

Project description:We sequenced mRNA from 12 samples extracted from mouse prefrontal cortex tissue to generate the first prefrontal cortex-specific murine transcriptome for germ-free mice (GF), conventionally raised controls (CON) and germ-free mice that have been colonized with normal microbiota from postnatal day 21 (exGF).

2016-01-14 | GSE75816 | GEO

Transcriptional profiling of 77 tissue samples from germ-free and conventionally raised mice.

2011-12-08 | GSE17438 | GEO

Transcriptional profiling of 53 tissue samples from germ-free and conventionally raised mice

2014-01-31 | GSE31115 | GEO

Transcriptional profiling of 53 tissue samples from germ-free and conventionally raised mice

Project description:Whole-transcriptome survey of gene expression differences between germ-free (GF) and conventionally raised (CONV-R) mice. To assess the role of toll-like receptor signalling, both wild-type and Myd88 -/- mice were used. Three different tissues were harvested from 20 mice (5 WT CONV-R, 5 Myd88 -/- CONV-R, 4 WT GF, 6 Myd88 -/- GF) and expression profiles were determines using the Affymetrix Mouse Gene 1.0ST platform.

2014-01-31 | E-GEOD-31115 | biostudies-arrayexpress

Transcriptional profiling of intestinal tissue samples from germ-free and conventionally raised mice which are either wild-type or Myd88-/-

Project description:Whole-transcriptome survey of gene expression differences between germ-free (GF) and conventionally raised (CONV-R) mice. To assess the role of toll-like receptor signalling, both wild-type and Myd88 -/- mice were used. Four different tissues were harvested from 20 mice (5 WT CONV-R, 5 Myd88 -/- CONV-R, 4 WT GF, 6 Myd88 -/- GF) and expression profiles were determines using the Affymetrix Mouse Gene 1.0ST platform. 77 samples remained after quality control.

2011-12-08 | E-GEOD-17438 | biostudies-arrayexpress

The Microbial Metabolite Deoxycholic Acid Modulates Cholesterol Metabolism in the Germ-Free Mouse

Project description:Deoxycholic acid (DCA) is a secondary bile acid produced by a small number of commensal species of bacteria present in the mammalian gut. Elevated DCA concentration correlates with disease states including colon cancer and cholesterol gallstones, but the associated mechanisms are not fully understood. Both primary and secondary bile acids are also capable of affecting gene expression through nuclear receptors such as FXR. To better understand the impact of a commensal-derived secondary bile acid on host metabolism we fed DCA to germ-free (GF) mice, which normally lack DCA, and compared the hepatic transcriptomes of bile acid fed GF mice to GF mice receiving a control diet, as well as to those of conventionally housed control animals. Interestingly, the feeding of DCA to GF mice, but not the feeding of cholic acid (CA) from which DCA is derived, results in an up-regulation of genes of cholesterol biosynthetic pathways. GF mice normally have elevated hepatic cholesterol compared to conventionally housed mice. Despite increase in the expression of cholesterol biosynthetic genes, the DCA fed GF mice showed a markedly decreased level of hepatic cholesterol equivalent to the hepatic cholesterol concentration of conventionally colonized animals. Total cholesterol in the serum was unaffected by DCA, but there was a decrease in the HDL lipoprotein fraction as well as an increase in the non-HDL lipoprotein fraction of the serum cholesterol. DCA, but not CA, is sufficient to modulate host lipoprotein metabolism. Taken together, these results suggests that a minor component of the gut microbiome has a significant impact on cholesterol homeostasis through secondary metabolism of bile acids and suggests a possible therapeutic intervention route through the microbial metabolic pathways. two mouse strains, three diets, one time point

2015-01-08 | E-GEOD-34730 | biostudies-arrayexpress

The Microbial Metabolite Deoxycholic Acid Modulates Cholesterol Metabolism in the Germ-Free Mouse

2015-01-08 | GSE34730 | GEO

Microbiota-dependent gene expression in small intestinal epithelial cells (IECs)

Project description:Intestinal epithelial cells were isolated from total small intestine of each four 28-day old conventionally raised (conv) and germ-free (GF) bred C57BL/6 mice (protocol according to: Lotz et al., J. Exp Med. 2006). Total RNA was isolated by TriZol and ist purity was examined using a Bioanalyszer. We used microarrays to comparatively detail the global gene expression in primary total isolated intestinal epithelial cells. Four biological replicates from isolated intestinal epithelial cells obtained from each 4 germ-free bred and conventionally raised mice. Colour change.

2012-05-16 | E-GEOD-35597 | biostudies-arrayexpress

Zebrafish response to microbiota

Project description:Vertebrates are colonized at birth by complex microbial communities (microbiota) that influence diverse aspects of host biology. We have used a functional genomics approach to identify zebrafish genes that are differentially expressed in response to the microbiota. We assessed RNA expression profiles from zebrafish larvae at 6 days post-fertilization (dpf) that were either raised continuously in the absence of any microorganism (germ-free or GF), or raised GF through 3dpf then colonized with a normal zebrafish microbiota (conventionalized or CONVD).

2010-01-01 | GSE16857 | GEO

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