GEO DataSets

(Submitter supplied) Myostatin is a highly conserved Transforming Growth Factor beta family member which negatively regulates muscle development. Double-muscled (DM) cattle have a loss-of-function mutation in their myostatin gene responsible for a hypermuscular phenotype mainly due to hyperplasia. Thus these animals represent a good model for understanding the mechanisms at the origin of muscular hypertrophy. In order to identify individual genes or networks that may be myostatin targets, we looked for genes differentially expressed between DM and normal (NM) animals (n=3 per group) in the semitendinosus muscle (a hypertrophied muscle in DM animals) at 260 days of fetal development (intensive muscle biochemical differentiation). more...

Organism:

Mus musculus; Bos taurus

Type:

Expression profiling by array

Platform:

GPL4049

24 Samples

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(Submitter supplied) The transcriptome of bovine Longissimus thoracis muscles from 15- and 19-month-old Charolais young bulls were analyzed in order to identify genes whose expression level was associated to beef quality scores, in particular to tenderness, juiciness and flavor, and to muscle growth potential. The expression of over 5000 genes was compared between high and low meat quality samples according to the three sensory traits, taken individually, and between animals with either a high or a low muscle growth potential. more...

Organism:

Bos taurus; Homo sapiens; Mus musculus

Type:

Expression profiling by array

Platforms:

GPL4049 GPL4048

100 Samples

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

Organism:

Homo sapiens

Type:

Expression profiling by array

Platforms:

GPL9454 GPL570

65 Samples

Download data: CEL

(Submitter supplied) In the present study, a oligonucleotide microarray platform is used to compare expression profiles of beef cattle muscle in animals treated with either Dexamethazone (Dex) or Dexamethazone plus 17β-estradiol (Estr) administered at sub-therapeutic dosage, against untreated controls. Seventeen male beef cattle 15-18 months old, around 450 kg mean body weight were randomly allocated in three groups: 6 were untreated (group Ctrl), 5 were administered with dexamethazone via feed 0.75mg/head for 43 days (group D); the last 6 animals were administered via feed for 43 days with Dex (0.75mg/head) and intramuscularly (i.m.) for three times with 17β-oestradiol, 20mg/head, (group DE). more...

Organism:

Bos taurus

Type:

Expression profiling by array

Platform:

GPL7053

20 Samples

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(Submitter supplied) Inhibition of the myostatin signaling pathway is emerging as a promising therapeutic means to treat muscle wasting disorders. Activin type IIB receptor is the putative myostatin receptor, and a soluble activin receptor (ActRIIB-Fc) has been demonstrated to potently inhibit a subset of TGF-β family members including myostatin. In order to determine reliable and valid biomarkers for myostatin pathway inhibition, we assessed gene expression profiles for quadriceps muscles from mice treated with ActRIIB-Fc compared to mice genetically lacking myostatin and control mice.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6246

35 Samples

Download data: CEL

(Submitter supplied) Myostatin (Mstn) knockout mice exhibit large increases in skeletal muscle mass. However, relatively few of the genes that mediate or modify MSTN effects are known. In this study, we performed co-expression network analysis using whole transcriptome microarray data from Mstn-null and wild-type mice to identify genes involved in important biological processes and pathways related to skeletal muscle and adipose development.Genes differentially expressed between wild-type and Mstn-null mice were identified at 13.5 d.p.c. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platforms:

GPL340 GPL339

60 Samples

Download data: CEL

(Submitter supplied) We present the application of large-scale multivariate mixed-model equations to the joint analysis of nine gene expression experiments in beef cattle muscle and fat tissues with a total of 147 hybridizations, and exploring 47 experimental conditions or treatments. Using a correlation-based method, we constructed a gene network for 822 genes. Modules of muscle structural proteins and enzymes, extracellular matrix, fat metabolism and protein synthesis were clearly evident. more...

Organism:

Bos taurus

Type:

Expression profiling by array

Platforms:

GPL4196 GPL4197

147 Samples

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(Submitter supplied) RNA from 5 mice with postdevelopmental knockout of myostatin and 5 mice with normal myostatin expression was analyzed with comprehensive oligonucleotide microarrays. Myostatin depletion affected the expression of several hundred genes at nominal P < 0.01, but fewer than a hundred effects were statistically significant according to a more stringent criterion (false discovery rate < 5%). Most of the effects were less than 1.5-fold in magnitude. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Dataset:

GDS3637

Platform:

GPL1261

10 Samples

Download data: CEL

Analysis of mature skeletal muscle depleted for the TBFb protein myostatin (MSTN). MSTN inhibits muscle differentiation and growth. MSTN deficiency during development results in muscle hypertrophy. Results provide insight into the effect of reducing MSTN activity after normal muscle development.

Organism:

Mus musculus

Type:

Expression profiling by array, count, 2 protocol sets

Platform:

GPL1261

Series:

GSE15349

10 Samples

Download data: CEL

(Submitter supplied) GDF8 (myostatin) is a unique cytokine strongly affecting the skeletal muscle phenotype in human and animals. The aim of the present study was to elucidate the molecular mechanism of myostatin influence on the differentiation of mouse C2C12 myoblasts, using the global-transcriptome analysis with the DNA microarray technique. Treatment with exogenous GDF8 strongly affected the growth and development of C2C12 mouse myoblasts. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL7202

4 Samples

Download data: TXT

(Submitter supplied) Systemic administration of β-adrenoceptor (β-AR) agonists has been found to induce skeletal muscle hypertrophy and significant metabolic changes. In the context of energy homeostasis, the importance of β-AR signaling has been highlighted by the inability of β1–3-AR-deficient mice to regulate energy expenditure and susceptibility to diet induced obesity. However, the molecular pathways and gene expression changes that initiate and maintain these phenotypic modulations are poorly understood. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6333

16 Samples

Download data: TXT

(Submitter supplied) Global gene expression patterns were determined from microarray results on day 1, 3, 5, 7, 10 and 14 during plantaris muscle hypertrophy induced by synergist ablation in young adult mice (5 months).

Organism:

Mus musculus

Type:

Expression profiling by array

Dataset:

GDS4932

Platform:

GPL6246

14 Samples

Download data: CEL

Analysis of right and left plantaris muscle from young males (5 months old) subjected to 1, 3, 5, 7, 10 and 14 days of synergist ablation surgery to induce hypertrophy. Results provide insight into the molecular response of young skeletal muscle to mechanical overload induced by synergist ablation.

Organism:

Mus musculus

Type:

Expression profiling by array, count, 2 stress, 7 time, 2 tissue sets

Platform:

GPL6246

Series:

GSE47098

14 Samples

Download data: CEL

(Submitter supplied) To further knowledge of piglet maturity, we have developed a microarray analysis to describe biological processes and to find candidate genes for key roles in piglet maturity. The objective was to identify which genes and biological processes are specifically involved in the difference between two extreme breeds: Large White (LW) and Meishan (MS). The LW breed is a selected breed known to show an increased rate of mortality at birth, while the MS breed presents more robust piglets at birth. more...

Organism:

Sus scrofa

Type:

Expression profiling by array

Platform:

GPL16524

61 Samples

Download data: TXT

(Submitter supplied) Expression data from Sheep longissimus dorsi (LD) muscle during development; fetal lambs (80, 100, 120 days gestation), new born lambs at birth (150 d) and lambs at 12 weeks (230 d) The fetal to neonatal developmental transition corresponds with profound changes in skeletal muscle function as it adapts to the new physiological demands of locomotion and postural support against gravity. The mechanisms underpinning this adaption process are unclear but are likely to be initiated by changes in hormone levels occurring during the major developmental transition. more...

Organism:

Ovis aries; Bos taurus

Type:

Expression profiling by array

Platform:

GPL2112

15 Samples

Download data: CEL

(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) Previous analysis of Myf5-/-:MyoD-/- mouse fetuses lacking skeletal muscle demonstrated the importance of muscle contraction and static loading in mouse skeletogenesis. Previous analysis of Myf5-/-:MyoD-/- mouse fetuses lacking skeletal muscle demonstrated the importance of muscle contraction and static loading in mouse skeletogenesis. Among abnormal skeletal features, micrognathia (mandibular hypoplasia) was detected: small, bent and posteriorly displaced mandible. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6246

2 Samples

Download data: CEL, CHP

(Submitter supplied) Muscle biopsies taken from vastus lateralis muscle of 15 men and 15 women after 3 days of standardized diet and activity to examine effects of sex and age Subjects were either young adults (7 men and 7 women, 20-29 yr old) or older (8 men and 8 women, 65-75 yr old) Affymetrix U133A and U133B arrays were scanned both before (S1) and after (S2) antibody enhancement. This file has U133A S1 data. Effects of age were computed for men and women separately with an alternative method previously and data submitted as GSE362 (men) and GSE674 (women). more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platforms:

GPL96 GPL97

120 Samples

Download data: CEL