GEO DataSets

(Submitter supplied) Work with pathogens like Vibrio cholerae has shown major differences between gene expression in bacteria grown in vitro and in vivo. To explore this subject for commensals, we investigated the transcription of the Lactobacillus johnsonii NCC533 genome during in vitro using the microarray technology. In broth growth, 537, 626 and 277 of the 1756 tested genes were expressed during exponential, “adaptation” (early stationary phase) and stationary phase, respectively. more...

Organism:

Lactobacillus johnsonii; Lactobacillus johnsonii NCC 533

Type:

Expression profiling by array

Platform:

GPL5958

18 Samples

Download data: TXT

(Submitter supplied) Whole tissues corresponding to the corpus, jejunum, descending colon and rectum were dissected from each mouse, washed with ice-cold PBS, placed into 2ml of RNA-later and flash-frozen in liquid nitrogen. The corpus was defined as the part of the stomach different from the antrum (distinguished by a difference in colour). The jejunum was defined as the tissue between the first 4 cm and the last 2 cm of the small intestinal tube. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Dataset:

GDS640

Platform:

GPL81

24 Samples

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Analysis of germ-free and conventional corpus, jejunum, descending colon and rectum. Findings identify important interaction between commensal microbiota and gastrointestinal tract transcriptome.

Organism:

Mus musculus

Type:

Expression profiling by array, count, 2 other, 4 tissue sets

Platform:

GPL81

Series:

GSE1392

24 Samples

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(Submitter supplied) In this study, we investigated the transcriptional response of the human isolate L. reuteri ATCC 55730 during sourdough fermentation by using whole-genome microarrays. Significant changes of mRNA levels were found for 101 genes involved in diverse cellular processes, e.g., carbohydrate and energy metabolism, cell envelope biosynthesis, exopolysaccharide production, stress responses, signal transduction and cobalamin biosynthesis. more...

Organism:

Limosilactobacillus reuteri

Type:

Expression profiling by array

Platform:

GPL6366

6 Samples

Download data: GPR

(Submitter supplied) Streptococcus pyogenes growth-phase dependent and Rgg-dependent transcription was analyzed Keywords: transcriptional regulation

Organism:

Streptococcus pyogenes

Type:

Expression profiling by array

Platform:

GPL3312

9 Samples

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(Submitter supplied) Whole tissues corresponding to the proximal and distal small intestine and to the colon were dissected from each rat, washed with ice-cold saline solution and immediately frozen in liquid nitrogen. Rats were either control or treated with Amoxicillin (100mg/kg/day). Small intestine was divided in two identical length considered as the proximal and distal part. In each intestinal part 1 cm of tissue was taken in the middle of this part to perform the RNA extraction and then the GeneArray analysis. more...

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Dataset:

GDS1273

Platform:

GPL341

35 Samples

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Analysis of small intestine and colon of Sprague-Dawleys treated with 100 mg/kg/day of amoxicillin from 7 days of age until day 17 or day 21. Results provide insight into the effect of antibiotics on gut barrier function maturation.

Organism:

Rattus norvegicus

Type:

Expression profiling by array, count, 2 agent, 2 time, 3 tissue sets

Platform:

GPL341

Series:

GSE2354

35 Samples

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(Submitter supplied) d-serine is naturally present throughout the human body. It is also used as add-on therapy for treatment-refractory schizophrenia. d-Serine interacts with the strychnine-insensitive glycine binding site of NMDA receptor, and this interaction could lead to potentially toxic activity (i.e., excitotoxicity) in brain tissue. The transcriptomic changes that occur in the brain after d-serine exposure have not been fully explored. more...

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Dataset:

GDS3643

Platform:

GPL1355

24 Samples

Download data: CEL

Analysis of forebrains of animals treated with up to 500 mg/kg D-serine for 96 hours. D-serine is involved in many physiological processes through its interaction with the glycine binding site of the NMDA receptor. Results provide insight into the impact of D-serine exposure on neuronal functions.

Organism:

Rattus norvegicus

Type:

Expression profiling by array, count, 2 agent, 6 dose sets

Platform:

GPL1355

Series:

GSE10748

24 Samples

Download data: CEL

(Submitter supplied) Although studies have established that exogenous growth hormone (GH) treatment stimulates growth in fish, its effects on target tissue gene expression are not well characterized. We assessed the effects Posilac® (Monsanto Co., St. Louis, MO), a recombinant bovine somatotropin, on tissue transcript levels. Transcript abundance was measure in liver and muscle using the GRASP 16 K cDNA microarray. A selection of the genes identified as altered with the microarray, and also transcripts for insulin-like growth factors, growth hormone receptors (GHR) and myostatins were measured by realtime PCR in the liver, muscle, brain, kidney, intestine, stomach, gill and heart. more...

Organism:

Oncorhynchus mykiss; Salmo salar

Type:

Expression profiling by array

Platform:

GPL3976

16 Samples

Download data: TXT

(Submitter supplied) Invasion of host tissue by the human fungal pathogen, Candida albicans is an important step during many forms of candidosis. However, not all C. albicans strains possess the same invasive and virulence properties. It is known for example that the two clinical isolates SC5314 and ATCC10231 differ in their ability to invade into host tissue and to cause infections. Strain SC5314 is invasive whereas strain ATCC10231 is non-invasive and strongly attenuated in virulence as compared to SC5314. more...

Organism:

Candida albicans

Type:

Genome variation profiling by array

Platform:

GPL6453

2 Samples

Download data: GPR

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Mycoplasmoides pneumoniae M129

Type:

Expression profiling by array; Expression profiling by genome tiling array; Non-coding RNA profiling by genome tiling array

Platforms:

GPL7821 GPL7822

295 Samples

Download data: GPR

(Submitter supplied) Two main articles have used this data. The small bacterium Mycoplasma pneumoniae with its annotated 689 protein-coding genes and 44 RNAs constitutes an ideal system for global and conditional transcription analysis in bacteria. We have combined spotted arrays under more than 120 conditions with several strand-specific, high resolution tiling arrays to obtain an unprecedented level of detail of bacterial gene expression. more...

Organism:

Mycoplasmoides pneumoniae M129

Type:

Expression profiling by array

Platform:

GPL7822

252 Samples

Download data: GPR

(Submitter supplied) Two main articles have used this data. The small bacterium Mycoplasma pneumoniae with its annotated 689 protein-coding genes and 44 RNAs constitutes an ideal system for global and conditional transcription analysis in bacteria. We have combined spotted arrays under more than 120 conditions with several strand-specific, high resolution tiling arrays to obtain an unprecedented level of detail of bacterial gene expression. more...

Organism:

Mycoplasmoides pneumoniae M129

Type:

Expression profiling by genome tiling array; Non-coding RNA profiling by genome tiling array

Platform:

GPL7821

43 Samples

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(Submitter supplied) Commensal (symbiont) bacteria form communities in various regions of the bodies of vertebrates. Phylogenetic analysis of gut communities is advanced, but the relationships, especially at the trophic level, between commensals that share gut habitats of monogastric animals have not been investigated to any extent. Lactobacillus reuteri strain 100-23 and Lactobacillus johnsonii strain 100-33 cohabit in the forestomach of mice. more...

Organism:

Limosilactobacillus reuteri subsp. rodentium

Type:

Expression profiling by array

Platform:

GPL10986

4 Samples

Download data: TXT

(Submitter supplied) Lactobacillus reuteri 100-23 is an autochthonous inhabitant of the rodent gastrointestinal system that adheres to the non-secretory epithelium of the forestomach and forms biofilms. Microarray analysis of the expression profile of L. reuteri 100-23 cells harvested from the stomach of ex-Lactobacillus-free mice, compared to those of L. reuteri 100-23 in laboratory culture, revealed an in vivo upregulation of a urease gene cluster by greater than 50-fold. more...

Organism:

Limosilactobacillus reuteri subsp. rodentium

Type:

Expression profiling by array

Platform:

GPL10986

6 Samples

Download data: TXT