GEO DataSets

(Submitter supplied) Because of its high plasticity and rapid growth rate, turkey skeletal muscle is an important model for studying mechanisms responsible for vertebrate skeletal muscle development and function. Skeletal muscle is composed of metabolically heterogeneous myofibers that exhibit high plasticity at both the morphological and transcriptional levels. The objective of this study was to employ microarray analysis to elucidate the differential gene expression between the tonic- “red” Anterior latissimus dorsi (ALD) muscle, the phasic- “white” Posterior latissimus dorsi (PLD), and “mixed”-phenotype Biceps femoris (BF) in 1-week and 19-week old male turkeys. more...

Organism:

Meleagris gallopavo

Type:

Expression profiling by array

Platform:

GPL9788

34 Samples

Download data: TXT

(Submitter supplied) Microarrays were used for transcription profiling of skeletal muscle samples taken at birth, when the phenotype was not expressed, and 12 weeks of age from Callipyge and wild type sheep. The genes that underlie the expression of the phenotype rather than result from the fibre type change in the affected muscle have been identified. We used microarrays to detail the global programme of gene expression underlying the hypertrophy phenotype and identified distinct classes of regulated genes during this process. more...

Organism:

Bos taurus; Ovis aries

Type:

Expression profiling by array

Platform:

GPL2112

24 Samples

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(Submitter supplied) A mRNA expression study has been performed 20-25 minutes postmortem obtained samples from Longissimus dorsi muscle of 59 Duroc x LD/LW pigs to search for gene sequences related to meat quality (pH24, pH45, “Lab” colour coordinates, curing yield and exudation at three different times) or to meat composition (intramuscular fat, content of several fatty acid (C16:0, C18:0, C18:1 and C18:2), ratio of saturated, monounsaturated and polyunsaturated fatty acids, and protein and humidity contents) traits in order to find targets for selection. more...

Organism:

Sus scrofa

Type:

Expression profiling by array

Platform:

GPL3533

59 Samples

Download data: CEL

(Submitter supplied) Aging of skeletal muscle tissue is characterized by loss of metabolic and contractile competence. It is thought that this phenomenon is driven via extrinsic and intrinsic factors. In order to identify age-dependent changes intrinsic to the muscle cell, microarray transcriptional profiles and measurements of glucose metabolism were performed in primary cultured human myotubes at different time points over seven weeks. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS647

Platform:

GPL8300

7 Samples

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Examination of aging myotubes from a muscle biopsy incubated in glucose. Myotubes in 25 mM glucose at 2, 3, 4, 5, and 7 weeks, and in 10 mM glucose at 4 weeks examined in reference to 0 mM glucose control at 1 week.

Organism:

Homo sapiens

Type:

Expression profiling by array, count, 3 growth protocol, 6 time sets

Platform:

GPL8300

Series:

GSE1144

7 Samples

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

Organism:

Meleagris gallopavo

Type:

Expression profiling by array

Platform:

GPL9788

70 Samples

Download data: GPR

(Submitter supplied) The purpose of Experiment 2 was two-fold: a) to evaluate a unique set of negative, distance, and mismatch control probes on the newly designed 6K TSKMLO microarray, and b) to identify differences in gene expression between two genetic lines of turkeys that phenotypically display differences in growth. Negative and mismatch controls confirmed specific hybridization using this array, and genes identified as differentially expressed between developmental stages by microarray analysis were confirmed by qRT-PCR. more...

Organism:

Meleagris gallopavo

Type:

Expression profiling by array

Platform:

GPL9788

30 Samples

Download data: GPR

(Submitter supplied) The purpose of Experiment 1 was two-fold: a) to evaluate a unique set of negative, distance, and mismatch control probes on the newly designed 6K TSKMLO microarray, and b) to identify patterns of gene expression in skeletal muscle during development. Negative and mismatch controls confirmed specific hybridization using this array, and genes identified as differentially expressed between developmental stages by microarray analysis were confirmed by qRT-PCR. more...

Organism:

Meleagris gallopavo

Type:

Expression profiling by array

Platform:

GPL9788

40 Samples

Download data: GPR

(Submitter supplied) A 6K oligonucleotide microarray (TSKMLO) was designed as a community resource for researchers interested in domestic turkey muscle biology as it pertains to growth and development and their association with downstream meat quality. A series of quality control experiments performed to assess the functionality of the newly constructed array, which included a set of validation hybridizations performed in order to initially assess the functionality and repeatability of the newly designed TSKMLO array. more...

Organism:

Meleagris gallopavo

Type:

Expression profiling by array

Platform:

GPL9788

4 Samples

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(Submitter supplied) Three skeletal muscle cDNA libraries from the developmental stages 18-day embryo, 1-day post-hatch chick, and 16-week market age bird were constructed and sequenced as in Reed et al. (2008). Additional sequences for genes important in regulation of muscle growth, development, and extracellular matrix function were added. Because alternative splicing has been identified as a potential mechanism in the differential regulation of the Ca2+ channel ryanodine receptor (RYR), possibly leading to downstream defects in postmortem meat quality (Chiang et al. more...

Organism:

Meleagris gallopavo

10 Series

166 Samples

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(Submitter supplied) Extremely variable clinic and genetic features characterize Mitochondrial Encephalomyopathy Disorders (MED). Pathogenic mitochondrial DNA (mtDNA) defects can be divided into large-scale rearrangements and single point mutations. Clinical manifestations become evident when a threshold percentage of the total mtDNA is mutated. In some MED, the "mutant load" in an affected tissue is directly related to the severity of the phenotype. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS1065

Platform:

GPL96

15 Samples

Download data: CEL

Analysis of muscle from 12 patients with various forms of mitochondrial encephalomyopathies associated with mitochondrial DNA mutations: 8 patients with a A3243G mutation, and 4 patients with a 4977 base pair deletion. Results identify possible expression signature for mitochondrial disorders.

Organism:

Homo sapiens

Type:

Expression profiling by array, count, 3 disease state, 3 genotype/variation sets

Platform:

GPL96

Series:

GSE1462

15 Samples

Download data: CEL

(Submitter supplied) The right legs of 8 Brown-Norway male rats were denervated by a high sciatic nerve section in the hip region of the hind limb.Two months after denervation (6 months of age), extensor digitorum longus (EDL) muscles were removed from the operated legs. The EDL muscles from 8 age-matched non-operated rats served as innervated controls. Total RNA was isolated, labeled cDNA was prepared and hybridized to the Rat Atlas 1.2 Array II membranes (Clontech Laboratories, Palo Alto, CA). more...

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Platform:

GPL154

16 Samples

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(Submitter supplied) Three male 8-week-old Wistar rats were used. The peroneal nerve of the animals was transected and sutured to the biceps femoris muscle. Four weeks later, the proximal stump was sutured to the distal stump. The animals survived for 8 weeks. All experiments were performed under Ketanest (ketamine hydrochloride, Essex Pharma GmbH, Munich, Germany; 100 mg/kg) and Rompun (xylazine hydrochloride, Bayer, Leverkusen, Germany; 10 mg/kg) anesthesia. more...

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Dataset:

GDS2243

Platform:

GPL341

6 Samples

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Analysis of reinnervated tibialis anterior muscles that were previously denervated for 4 weeks. Denervation-induced myofiber atrophy can be reversed by reinnervation. Results provide insight into the molecular mechanisms contributing to myofiber growth after reinnervation.

Organism:

Rattus norvegicus

Type:

Expression profiling by array, count, 2 protocol sets

Platform:

GPL341

Series:

GSE2566

6 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) This experiment details the gene expression data from the small intestine from a set of parasite resistant and a set of parasite susceptible sheep. Keywords = parasite resistance Keywords: other

Organism:

Ovis aries; Bos taurus

Type:

Expression profiling by array

Platform:

GPL1434

16 Samples

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(Submitter supplied) We used high density oligonucleotide arrays to measure the relative expression levels of ~27,000 probe sets in the left ventricles of inbred rat strains; DA (high performing), Copenhagen (COP, low performing), as well as F1(COPxDA) rats bred from these two strains whose performance was intermediate relative to both parental strains. DA and COP rats differ for both intrinsic aerobic running capacity (assessed with a treadmill exercise test to exhaustion) and intrinsic cardiac performance (as assessed by the Langendorff-Neeley working heart model). more...

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Datasets:

GDS778 GDS779 GDS780

Platforms:

GPL87 GPL86 GPL85

36 Samples

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Expression profiling of heart left ventricles from 15 week old inbred COP, DA, and COP x DA F1 offspring (low, high, and intermediate performers respectively). Results provide insight into mechanisms underlying aerobic capacity.

Organism:

Rattus norvegicus

Type:

Expression profiling by array, count, 3 strain sets

Platform:

GPL87

Series:

GSE1795

12 Samples

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