GEO DataSets

(Submitter supplied) Background: The aim of this study is to improve our understanding of the mechanisms underlying the sparing of masticatory muscles relative to limb muscles in ICU patients with acute quadriplegic myopathy (AQM) by using a unique porcine ICU model, i.e., 5-day longitudinal experiments where animals are sedated, mechanically ventilated and exposed to factors triggering AQM, such as muscle unloading, endotoxin-induced sepsis, and systemic exposure to CS and NMBA. more...

Organism:

Sus scrofa

Type:

Expression profiling by array

Platform:

GPL3533

18 Samples

Download data: CEL, TXT

(Submitter supplied) Background: Skeletal muscle wasting and impaired muscle function in response to mechanical ventilation and immobilization in intensive care unit (ICU) patients are clinically challenging partly due to (i) the poorly understood intricate cellular and molecular networks; and (ii) the unavailability of an animal model mimicking this condition. By employing a unique porcine model mimicking the conditions in the ICU with long-term mechanical ventilation and immobilization, we have analyzed the expression profile of skeletal muscle biopsies taken at three time points during a five-day period. more...

Organism:

Sus scrofa

Type:

Expression profiling by array

Platform:

GPL3533

24 Samples

Download data: CEL, CHP

(Submitter supplied) Background : The aim of this study is to improve our understanding of the mechanisms underlying the role of sepsis in the limb muscles of ICU patients with acute quadriplegic myopathy (AQM) by using a unique porcine ICU model, i.e., 5-day longitudinal experiments where animals are sedated, mechanically ventilated and exposed to factor triggering AQM that is endotoxin-induced sepsis. Results : An increased expression of genes involved in chemokine activity and transcriptional regulation. more...

Organism:

Sus scrofa

Type:

Expression profiling by array

Platform:

GPL3533

8 Samples

Download data: CEL

(Submitter supplied) Distinctions between craniofacial and axial muscles exist from the onset of development and throughout adulthood. The masticatory muscles are a specialized group of craniofacial muscles that retain embryonic fiber properties throughout adulthood, suggesting that the developmental origin of these muscles may govern a pattern of expression that differs from limb muscles. To determine the extent of these differences, expression profiling of total RNA isolated from the masseter and tibialis anterior (TA) muscles of adult female mice was performed, which identified transcriptional changes in unanticipated functional classes of genes in addition to those associated with fiber type. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL339

6 Samples

Download data: CEL

(Submitter supplied) Acute quadriplegic myopathy (AQM) or critical illness myopathy (CIM) is frequently observed in intensive care unit (ICU) patients. In order to elucidate duration-dependent effects of the ICU intervention on molecular and functional networks that control the muscle wasting and weakness in AQM, gene expression profile was analyzed at time points varying from 6 hours to 14 days in a unique experimental rat model mimicking ICU conditions, i.e., post-synaptically paralyzed, mechanically ventilated and extensively monitored animals.

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Platform:

GPL6247

28 Samples

Download data: CEL, TXT

(Submitter supplied) Extraocular Muscle is Defined by a Fundamentally Distinct Gene Expression Profile. Adult mouse extraocular, masticatory, and hindlimb (gastrocnemius/soleus) muscles of adult mice were compared using Affymetrix microarrays. Data form part of publication: Proceedings of the National Academy of Sciences USA 98:12062-12067, 2001. Keywords: parallel sample

Organism:

Mus musculus

Type:

Expression profiling by array

Dataset:

GDS702

Platform:

GPL32

14 Samples

Download data: CEL

Comparison of extraocular (EOM), masticatory (masseter), and hindlimb (gastrocnemius/soleus) muscle in 8 week old mice. EOM defined by distinct gene expression profile.

Organism:

Mus musculus

Type:

Expression profiling by array, count, 3 tissue sets

Platform:

GPL32

Series:

GSE1062

14 Samples

Download data: CEL

(Submitter supplied) Critically ill intensive care unit (ICU) patients commonly develop severe muscle wasting and impaired muscle function, leading to delayed recovery, with subsequent increased morbidity and financial costs, and decrease quality of life of survivors. Acute Quadriplegic Myopathy (AQM) is one of the most common neuromuscular disorders associated with ICU-acquired muscle weakness. Although there are no available treatments for the ICU-acquired muscle weakness, it has been demonstrated that early mobilization can improve its prognosis and functional outcomes. more...

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Dataset:

GDS4563

Platform:

GPL6247

46 Samples

Download data: CEL

Temporal analysis of loaded leg gastrocnemius of females (subjected to neuromuscular blockade, mechanical ventilation) following unilateral passive mechanical loading (PML). Results provide insight into molecular basis of the beneficial effects of PML on muscle mass and function in this ICU model.

Organism:

Rattus norvegicus

Type:

Expression profiling by array, transformed count, 2 protocol, 3 time sets

Platform:

GPL6247

Series:

GSE37944

46 Samples

Download data: CEL