Isoflurane Single Exposures
Ontology highlight
ABSTRACT:
ORGANISM(S): Rattus norvegicus
PROVIDER: GSE359 | GEO | 2003/06/26
SECONDARY ACCESSION(S): PRJNA84849
REPOSITORIES: GEO
Similar Datasets
Project description:3 controls, 2 1-hr exposure, and 3 2-hr exposure. RNA extractions and microarray hybridization were performed at the University of of California, Davis. Male Sprague Dawley rats were used in this study and were intubated during the exposures.
2008-06-12 | E-GEOD-359 | biostudies-arrayexpress
Project description:Rats were exposed to 90 minutes of 0.8% halothane or 1.0% isoflurane twice a day for a total of 5 or 10 exposures. Animals did not require intubation. All exposures and hybridizations were performed at the Univ. of Pennsylvania. Keywords = anesthetics Keywords: other
2003-10-20 | GSE752 | GEO
Project description:This SuperSeries is composed of the SubSeries listed below.
2006-12-03 | GSE6433 | GEO
Project description:Halothane/Isoflurane repetitive exposures
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Project description:The delta smelt (Hypomesus transpacificus) is a pelagic fish species endemic to the Sacramento-San Joaquin Estuary in Northern California, listed as endangered under both the USA Federal and Californian State Endangered Species Acts and acts as an indicator of ecosystem health in its habitat range. Interrogative tools are required to successfully monitor effects of contaminants upon the delta smelt, and to research potential causes of population decline in this species. We used microarray technology to investigate genome-wide effects in 57-day old larvae after a 4-day exposure to ammonia; one of multiple contaminants arising from wastewater treatment plants and agricultural runoff. Genomic assessments were carried out between larvae exposed to 10 mg/L total ammonium; the lowest observed effect concentration (LOEC), and controls.
2011-05-05 | GSE29089 | GEO
Project description:The delta smelt (Hypomesus transpacificus) is an endangered pelagic fish species endemic to the Sacramento-San Joaquin estuary, California, and considered an indicator of ecosystem health. The experimental combination of molecular biomarkers with higher level condition indicators may allow for interpretation of responses in a functional context that can be used to predict detrimental outcomes caused by contaminant exposure. Copper is a contaminant of concern in Californian waterways that may affect the development and survival of this endangered species. We have developed and applied a delta smelt microarray in order to screen for probable candidate molecular biomarkers that may be used in monitoring programs. Functional classifications of microarray responses are presented along with quantitative Polymerase Chain Reaction (qPCR) assessments measuring effects upon neuromuscular, digestive and immune responses in delta smelt exposed to copper. Differences in sensitivity were measured between juvenile and larval delta smelt (LC¬5096h= 25.2 and 80.4 ?g/L Cu2+ respectively). Swimming velocity declined with higher exposure concentrations in a dose-dependent manner, though were not statistically significant to controls. Genes encoding for aspartoacylase (ASPA), hemopexin, alpha-actin and calcium regulation proteins were significantly affected by exposure and were functionally interpreted with measured swimming responses. Effects on digestion were measured by upregulation of chitinase and downregulation of amylase, whilst downregulation of tumor necrosis factor indicated a probable compromised immune system.
2010-08-18 | GSE23238 | GEO
Project description:12 Controls, 3 5-exposures, 3 10-exposures. Rats were exposed to 90 minutes of 1.0% isoflurane twice a day for a total of 5 or 10 exposures. Animals did not require intubation. All exposures and hybridizations were performed at the Univ. of Pennsylvania. Keywords: time-course
2003-06-26 | GSE358 | GEO
Project description:Prohormone-derived neuropeptides act as cell-cell signaling molecules to mediate a wide variety of biological processes in the animal brain. Mass spectrometry-based peptidomic experiments are valuable approaches to gain insight into the dynamics of individual peptides under different physiological conditions or experimental treatments. However, the use of anesthetics during animal procedures may confound experimental peptide measurements, especially in the brain where anesthetics act. Here, we investigate the effect of the commonly used anesthetics isoflurane and sodium pentobarbital on the peptide profile in the rodent hypothalamus and cerebral cortex, as assessed by label-free quantitative peptidomics. Our results showed that neither anesthetic dramatically alters peptide levels, although extended isoflurane exposure did cause changes in a small number prohormone-derived peptides in the cerebral cortex. Overall, our results demonstrate that acute use of anesthetics can be used in peptidomic experiments of the hypothalamus and cerebral cortex without dramatic confounding of experimental results.
2023-10-25 | PXD043738 | Pride
Project description:The delta smelt (Hypomesus transpacificus) is an endangered pelagic fish species endemic to the Sacramento-San Joaquin estuary, California, and considered an indicator of ecosystem health. The experimental combination of molecular biomarkers with higher level condition indicators may allow for interpretation of responses in a functional context that can be used to predict detrimental outcomes caused by contaminant exposure. Copper is a contaminant of concern in Californian waterways that may affect the development and survival of this endangered species. We have developed and applied a delta smelt microarray in order to screen for probable candidate molecular biomarkers that may be used in monitoring programs. Functional classifications of microarray responses are presented along with quantitative Polymerase Chain Reaction (qPCR) assessments measuring effects upon neuromuscular, digestive and immune responses in delta smelt exposed to copper. Differences in sensitivity were measured between juvenile and larval delta smelt (LC¬5096h= 25.2 and 80.4 ?g/L Cu2+ respectively). Swimming velocity declined with higher exposure concentrations in a dose-dependent manner, though were not statistically significant to controls. Genes encoding for aspartoacylase (ASPA), hemopexin, alpha-actin and calcium regulation proteins were significantly affected by exposure and were functionally interpreted with measured swimming responses. Effects on digestion were measured by upregulation of chitinase and downregulation of amylase, whilst downregulation of tumor necrosis factor indicated a probable compromised immune system. We utilized 3 replicates for exposed samples and 3 replicates for controls, both of which were hybridized to a reference pool. Each replicate contained 4 pooled larval delta smelt. The Reference pool consisted of delta smelt samples from this experiment and a number of prior tests. No dye swaps were performed due to limited material. Supplementary file linked below reports candidate differentially expressed cDNAs. Data represented as filtered, normalized, Log-2 Alexa (547/555) ratios.
2010-08-18 | E-GEOD-23238 | biostudies-arrayexpress
Project description:Isolated perfused rat hearts exposed to isoflurane or ischemic preconditioning, a subgroup followed by 40 minutes of ischemia and 3 hours of reperfusion. Exact protocol available from the authors. Keywords = preconditioning Keywords = anesthetics Keywords = ischemia/reperfusion Keywords: other
2004-07-30 | GSE1616 | GEO