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Homo sapiens
7 Downloadable Samples
Affymetrix Human Genome U133A Array (hgu133a)
Description
We have analyzed 2 normal B cells isolated from peripheral blood and 5 CLL specimens with affy 133A microarray for expression.
Publication Title
Aberrant splicing of the E-cadherin transcript is a novel mechanism of gene silencing in chronic lymphocytic leukemia cells.
Sample Metadata Fields
Specimen part, Disease, Disease stage
View Samples- Homo sapiens
- 4 Downloadable Samples
- Affymetrix Human Genome U133A Array (hgu133a)
Description
The data shows the effect of NMD inhbition on cell lines and the change in RNA transcripts. The data also shows comparison of non-transformed cells (tert kert) to a Head and Neck tumorigenic cell line SCC12.
Publication Title
Exon 11 skipping of E-cadherin RNA downregulates its expression in head and neck cancer cells.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 23 Downloadable Samples
- Illumina HumanHT-12 V4.0 expression beadchip
Description
Statins, the 3-hydroxy-3-methyl-glutaryl (HMG)-CoA reductase inhibitors, are widely prescribed for treatment of hypercholesterolemia. Although statins are generally well tolerated, up to ten percent of patients taking statins experience muscle related adverse events. Myalgia, defined as muscle pain without elevated creatinine phosphokinase (CPK) levels, is the most frequent reason for discontinuation of statin therapy. The mechanisms underlying statin-associated myalgia are not clearly understood. To elucidate changes in gene expression associated with statin-induced myalgia, we compared profiles of gene expression in the biopsied skeletal muscle from statin-intolerant patients undergoing statin re-challenge versus those of statin-tolerant controls. A robust separation of statin-intolerant and statin-tolerant cohorts was revealed by Principal Component Analysis of differentially expressed genes (DEGs). To identify putative gene expression and metabolic pathways that may be perturbed in skeletal muscles of statin intolerant patients, we subjected DEGs to Ingenuity Pathways (IPA) and DAVID (Database for Annotation, Visualization and Integrated Discovery) analyses. The most prominent pathways altered by statins included cellular stress, apoptosis, senescence and DNA repair (TP53, BARD1, Mre11 and RAD51); activation of pro-inflammatory immune response (CXCL12, CST5, POU2F1); protein catabolism, cholesterol biosynthesis, protein prenylation and RAS-GTPase activation (FDFT1, LSS, TP53, UBD, ATF2, H-ras). Based on these data we tentatively conclude that persistent myalgia in response to statins may emanate from cellular stress underpinned by mechanisms of post-inflammatory repair and regeneration. We also posit that this subset of individuals are genetically predisposed to eliciting altered statin metabolism and/or increased end-organ susceptibility that lead to a range of statin-induced myopathies. This mechanistic scenario further bolstered by the discovery that a number of single nucleotide polymorphisms (e.g., SLCO1B1, SLCO2B1 and RYR2) associated with statin myopathy were observed with increased frequency among statin-intolerant study subjects.
Publication Title
Patients experiencing statin-induced myalgia exhibit a unique program of skeletal muscle gene expression following statin re-challenge.
Sample Metadata Fields
Specimen part
View Samples- Rattus norvegicus
- 33 Downloadable Samples
- Affymetrix Rat Gene 1.0 ST Array (ragene10st)
Description
Purpose: The goal of this study was to determine the gene expression changes that occur over 7 days in parralyzed muscle in response to isometric contraction elicited by electrical stimulation initiated 4 months after spinal cord injury and to compare such changes to those observed in a normal muscle subjected to overload.
Publication Title
Electrical stimulation modulates Wnt signaling and regulates genes for the motor endplate and calcium binding in muscle of rats with spinal cord transection.
Sample Metadata Fields
Sex, Specimen part
View Samples- Rattus norvegicus
- 22 Downloadable Samples
- Affymetrix Rat Expression 230A Array (rae230a)
Description
Type 2 diabetes differs from type 1 diabetes in its pathogenesis. Type 1 diabetic diaphragm has altered gene expression which includes lipid and carbohydrate metabolism, ubiquitination and oxidoreductase activity. The objectives of the present study were to assess respiratory muscle gene expression changes in type 2 diabetes and to determine whether they are greater for the diaphragm than an upper airway muscle. Diaphragm and sternohyoid muscle from Zucker diabetic fatty (ZDF) rats were analyzed with Affymetrix gene expression arrays. The two muscles had 97 and 102 genes, respectively, with at least 1.5-fold significantly changed expression with diabetes, and these were assigned to gene ontology groups based on over-representation analysis. Several significantly changed groups were common to both muscles, including lipid metabolism, carbohydrate metabolism, muscle contraction, ion transport and collagen, although the number of genes and the specific genes involved differed considerably for the two muscles. In both muscles there was a shift in metabolism gene expression from carbohydrate metabolism toward lipid metabolism, but the shift was greater and involved more genes in diabetic diaphragm than diabetic sternohyoid muscle. Groups present in only diaphragm were blood circulation and oxidoreductase activity. Groups present in only sternohyoid were immune & inflammation and response to stress & wounding, with complement genes being a prominent component. In conclusion, type 2 diabetes-induced gene expression changes in respiratory muscles has both similarities and differences relative to previous data on type 1 diabetes gene expression. Furthermore, the diabetic alterations in gene expression differ between diaphragm and sternohyoid.
Publication Title
No associated publication
Sample Metadata Fields
Sex, Age, Specimen part
View Samples- Mus musculus
- 19 Downloadable Samples
- Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
In order to examine the changes in gene expression between normal and myotonic dystrophic animals, gene expression array studies were done with extensor digitorum longus (EDL) of transgenic HSALR line 20b mice using Affymetrix MOE430 2.0 microarrays.
Publication Title
No associated publication
Sample Metadata Fields
Age
View Samples- Mus musculus
- 2 Downloadable Samples
- Illumina MouseRef-8 v2.0 expression beadchip
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
No associated publication
Sample Metadata Fields
Age, Specimen part
View Samples
GSE15900- Rattus norvegicus
- 12 Downloadable Samples
- Affymetrix Rat Expression 230A Array (rae230a)
Description
Effect of type 1 diabetes (induced by streptozotocin 60 mg/kg) on lung gene expression. Wistar rats, male. At age 8 weeks control rats got IP buffer, diabetic rats got streptozotocin. At age 12 weeks animals were anesthetized and lungs removed. RNA was extracted with Trizol, and gene expression array analysis was performed using Affymetrix RAE 230A microarrays according to the directions from the manufacturer. Arrays were scanned using a Hewlett Packard Gene Array scanner, and analyzed with Affymetrix MAS 5.0 software. Expression levels reported are the output from the MAS software.
Publication Title
Alterations in lung gene expression in streptozotocin-induced diabetic rats.
Sample Metadata Fields
Age, Specimen part
View Samples- Rattus norvegicus
- 12 Downloadable Samples
- Affymetrix Rat Expression 230A Array (rae230a)
Description
Normal young adult Sprague Dawley rats (male)
Publication Title
Differential expression of lipid and carbohydrate metabolism genes in upper airway versus diaphragm muscle.
Sample Metadata Fields
No sample metadata fields
View Samples- Rattus norvegicus
- 11 Downloadable Samples
- Affymetrix Rat Expression 230A Array (rae230a)
Description
Comparison of gene expression of heart (left vent) and diaphragm of normal Sprague Dawley rats, young adult
Publication Title
Contrast between cardiac left ventricle and diaphragm muscle in expression of genes involved in carbohydrate and lipid metabolism.
Sample Metadata Fields
No sample metadata fields
View Samples