E-GEOD-15902
Ontology highlight
ABSTRACT:
PROVIDER: E-GEOD-15902 | ExpressionAtlas | 2014-07-03
REPOSITORIES: ExpressionAtlas
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| E-GEOD-15902-analysis-methods.tsv | Tabular | |||
| E-GEOD-15902-atlasExperimentSummary.Rdata | Rdata | |||
| E-GEOD-15902-configuration.xml | Xml | |||
| E-GEOD-15902-percentile-ranks.tsv | Tabular | |||
| E-GEOD-15902-zoomifications-log.tsv | Tabular |
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Project description:Comparison of gene expression in whole blood of mice subjected to normobaric hypoxia in vivo.
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Project description:Comparison of gene expression in whole blood of mice subjected to normobaric hypoxia in vivo.
2014-07-03 | E-GEOD-15894 | ExpressionAtlas
Project description:Comparison of gene expression in whole blood of mice subjected to hypobaric hypoxia at Mt. Everest in vivo.
2014-07-03 | E-GEOD-15901 | ExpressionAtlas
Project description:Comparison of gene expression in whole blood of mice subjected to hypobaric hypoxia at Mt. Everest in vivo.
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Project description:To determine hypoxia mediated changes in whole blood, normal C57Bl/10 mice were gradually exposed to a chronic hypoxic environment, equivalent to an altitude of 6500m, for 2 weeks in vivo. Control, age-matched mice were maintained under normoxic, normobaric conditions by exposing them to ambient air in Philadelphia (c. 50 mts above sea level). Purpose: To determine the expression profile of genes differentially expressed in mouse whole blood upon exposure to normobaric hypoxia in vivo. Methods: The hypoxic group consisting of 6 C57/BL10 mice was exposed to normobaric hypoxia, in a specially designed and hermetically closed hypoxic chamber, using a gas mixing system Pegas 4000 MF (Columbus Instruments, Ohio, USA). The oxygen level was decreased from 21% to 8% over a period of 14 days. 6 control mice were kept at normal oxygen and pressure levels by exposing them to ambient air in Philadelphia (c. 50 mts above sea level). RNA from whole blood was isolated, processed and used for microarray-based expression profiling. Profiles were generated for genes differentially expressed at control versus normobaric hypoxia in whole blood using a false discovery rate (FDR) of 0%. The Profile was validated by real-time quantitative reverse transcription-polymerase chain reaction (qPCR) on 2 biologically independent samples, not used for generating the profile. Results: The transcriptomes associated with normobaric hypoxia in whole blood were identified. We found 4723 genes that were differentially expressed in normobaric hypoxic whole blood compared to control with a 0% FDR and a 2 fold cutoff. Conclusion: Transcriptome level differences exist in the whole blood of animals subjected to normobaric hypoxia. Our definition of the normobaric hypoxia blood transcriptome provides insight into the functioning and response to hypoxia in whole blood.
2010-05-07 | E-GEOD-15894 | biostudies-arrayexpress
Project description:To determine hypoxia mediated changes in whole blood, normal swiss webster mice were gradually exposed to a chronic hypobaric hypoxic environment up to 8500m, for 2 weeks in vivo. Control, age-matched mice were maintained under normoxic conditions in Kathmandu (c. 1300 mts above sea level). Purpose: To examine and characterize the expression profile of genes expressed at hypobaric hypoxia on Mt. Everest of whole blood in comparison to the control. Methods: At the beginning of the experiment mice were divided into two groups, control (room condition, Kathmandu, Nepal) and hypoxic (hypoxic condition). For conditioning, the hypoxic group was exposed to lower levels of hypobaric hypoxia during our mountaineering expedition to Mt Everest. The oxygen level was decreased according to our climbing protocol from 21% to about 7% over a period of 15 days. Food and water were changed daily during the course of the experiment. After 15 days animals were euthanized after whole blood extraction from V. Cava for further analysis. RNA from whole blood was isolated, processed and used for microarray-based expression profiling. Profiles were generated for genes differentially expressed at control versus hypobaric hypoxia in whole blood using a false discovery rate (FDR) of 0%.We validated the profiles by real-time quantitative reverse transcription-polymerase chain reaction (qPCR). Results: The regional transcriptomes associated with hypobaric hypoxia on Mt. Everest in whole blood were identified. We found 947 genes that were differentially expressed in normobaric hypoxic whole blood compared to control with a 0% FDR and a 2 fold cutoff. Conclusion: Transcriptome level differences exist between control and hypobaric hypoxia in whole blood. Our definition of the synaptic transcriptome provides insight into the functioning of the unique response to hypoxia in whole blood.
2010-05-07 | E-GEOD-15901 | biostudies-arrayexpress
Project description:To understand hypoxia mediated changes in whole blood, normal C57Bl/10 mice were gradually exposed to a chronic chemical hypoxic environment, for 2 weeks. Control, age-machted mice were maintained under normoxic conditions. Purpose: To examine and characterize the expression profile of genes expressed at chemical hypoxia of whole blood in comparison to the control. Methods: At the beginning of the experiment mice were divided into two groups, control (room condition) and chemical hypoxic (room condition). For conditioning, the chemical hypoxic group was supplemented with 200ng of CoCl2 per 100ml/day. Animalâs weight and food intake were monitored daily. Food and water were changed daily during the course of the experiment. Before and after the experiments the hematocrit was monitored by taking blood from the tail vein of control and hypoxic animals. After 15 days animals were euthanized using CO2 after whole blood extraction from V. Cava for further analysis. RNA from whole blood was isolated, processed and used for microarray-based expression profiling. Profiles were generated for genes differentially expressed at control versus chemical hypoxia in whole blood using a false discovery rate (FDR) of 0%.We validated the profiles by real-time quantitative reverse transcription-polymerase chain reaction (qPCR). Results: The regional transcriptomes associated with chemical hypoxia in whole blood were identified. We found 3094 genes that were differentially expressed in chemical hypoxic whole blood compared to control with a 0% FDR and a 2 fold cutoff. Conclusion: Transcriptome level differences exist between control and chemical hypoxia in whole blood. Our definition of the synaptic transcriptome provides insight into the functioning of the unique response to hypoxia in whole blood.
2010-05-07 | E-GEOD-15902 | biostudies-arrayexpress
Project description:To determine hypoxia mediated changes in whole blood, normal swiss webster mice were gradually exposed to a chronic hypobaric hypoxic environment up to 8500m, for 2 weeks in vivo. Control, age-matched mice were maintained under normoxic conditions in Kathmandu (c. 1300 mts above sea level).
2010-04-25 | GSE15901 | GEO
Project description:To determine hypoxia mediated changes in whole blood, normal C57Bl/10 mice were gradually exposed to a chronic hypoxic environment, equivalent to an altitude of 6500m, for 2 weeks in vivo. Control, age-matched mice were maintained under normoxic, normobaric conditions by exposing them to ambient air in Philadelphia (c. 50 mts above sea level).
2010-04-25 | GSE15894 | GEO