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Gene expression profile in the diaphragm following contractile inactivity during thoracic surgery

ABSTRACT: Recent work revealed the development of marked diaphragm muscle fiber weakness during two hours of thoracic surgery. This loss of muscle fiber function was not part of a generalized muscle weakness as function of the non-respiratory latissimus dorsi muscle was preserved. To disentangle the molecular processes that might underlie the development of diaphragm muscle fiber weakness during thoracic surgery we studied changes in the gene expression profile.

ORGANISM(S): Homo sapiens

PROVIDER: GSE30658 | GEO | 2013/07/03

SECONDARY ACCESSION(S): PRJNA144609

REPOSITORIES: GEO

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Gene expression profile in the diaphragm following contractile inactivity during thoracic surgery

Project description:Recent work revealed the development of marked diaphragm muscle fiber weakness during two hours of thoracic surgery. This loss of muscle fiber function was not part of a generalized muscle weakness as function of the non-respiratory latissimus dorsi muscle was preserved. To disentangle the molecular processes that might underlie the development of diaphragm muscle fiber weakness during thoracic surgery we studied changes in the gene expression profile. Analyzed were diaphragm samples at t0 vs t2 and latissimus dorsi at t0 vs t2. In total 8 Diaphragm samples and 6 latissimus dorsi samples were analyzed.

2013-07-03 | E-GEOD-30658 | biostudies-arrayexpress

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Project description:Laminin (merosin) deficient muscular dystrophy in dy/dy mouse diaphragm muscle, 8 weeks old Keywords: muscle, muscular dystrophy, laminin, merosin, diaphragm, mouse

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Proteome of Young and Old Murine Diaphragm and Associaated Changes in Contractile Properties

Project description:Proteomic analysis of young and old murine diaphragm and associated changed in contractile aproperties. Redox sensitive Cysteine residues from both adult and old diaphragm tissues examined.

2018-02-12 | PXD005014 | Pride

Diaphragm in Diabetes

Project description:8 week old rats injected with streptozotocin or buffer alone at age of 8 weeks, diaphragm muscle obtained at age of 12 weeks (thus animals were diabetic for 4 weeks) Keywords: Disease state analysis (diabetes)

2009-11-13 | GSE4653 | GEO

Normal rat diaphragm vs sternohyoid

Project description:Normal young adult Sprague Dawley rats (male) 6 diaphragm muscle samples are compared with 6 sternohyoid muscle samples -- each sample is one muscle from one rat

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Real-time quantitative PCR analysis of rat diaphragm before and after acute cervical spinal cord injury

Project description:Male Sprague Dawley adult rats were subjected to a cervical hemisection at C2 (C2HS). Costal diaphragm (both ipsilesional and contralesional sides) were assessed under control conditions (sham surgery) and at 1 and 7 days post-C2HS. We used SA Biosciences Rat Skeletal Muscle Development and Disease RT2 Profiler PCR Array to quantitate gene expression of muscle atrophy and regeneration-relevant genes from the uninjured and injured tissues on the indicated sides and at the indicated timepoints post-lesion.

2013-12-18 | GSE45021 | GEO

Gene expression profile in the diaphragm following contractile inactivity during thoracic surgery.

Project description: Not available

| S-EPMC3175743 | biostudies-literature

Zucker Diabetic Fatty (ZDF) Rat Study - Diaphragm vs. Sternohyoid

Project 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.

2014-05-12 | GSE21791 | GEO

Zucker Diabetic Fatty (ZDF) Rat Study - Diaphragm vs. Sternohyoid

2014-05-12 | E-GEOD-21791 | biostudies-arrayexpress

Gene expression changes in the human diaphragm following cardiothoracic surgery

Project description:It is unknown how soon the diaphragm begins to start the process of atrophy following the start of MV. We hypothesized that genes responsible for maintaining diaphragmatic contractile function, stress response, energy transduction would be altered over the course of a 5 hour cardiothoracic surgery.

2012-01-04 | GSE19533 | GEO

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