STRRIDE is an exercise intervention study of different doses and intensities in overweight women and men with the metabolic syndrome. We profiled biopsies from 3 female and 3 male STRRIDE subjects in the high exercise group (2,200 kCal/wk). Muscle biopsies were profiled at entry (0h), and after 9 months of aerobic training (24 hrs post-last bout, 96 hrs post last bout, and 336h (14 days) de-training). Included also are pilot expression data from 3 male subjects.
Exercise training increases electron and substrate shuttling proteins in muscle of overweight men and women with the metabolic syndrome.
No sample metadata fields
View SamplesIt has been found that fat oxidation is reduced in the skeletal muscle of obese humans. This study aims to identify the mRNA of proteins involved in fat oxidation that may be reduced in obese and morbidly obese individuals. Information gathered will help in understanding how obesity contributes to cardiovascular disease via insulin resistance.
GRB14, GPD1, and GDF8 as potential network collaborators in weight loss-induced improvements in insulin action in human skeletal muscle.
No sample metadata fields
View SamplesObesity results from a chronic imbalance between energy intake and energy expenditure, with excess calories stored as fat. As such, weight loss has long been considered as a primary goal of treatment for obesity. A surgical treatment of severe obesity such as gastric bypass provides the most dramatic reductions in body weight, and a well-known effect of weight loss is an improvement in insulin sensitivity. However, the molecular mechanism underlying this association remains unclear. Thus, we profiled skeletal muscle of morbidly obese patients before and after gastric bypass surgery. Results from this project will provide global patterns of gene expression with weight loss, which help to understand the pathogenesis of obesity at the molecular level.
GRB14, GPD1, and GDF8 as potential network collaborators in weight loss-induced improvements in insulin action in human skeletal muscle.
No sample metadata fields
View SamplesThis study describes a temporal profile of gene expression from normal human fetal testes and ovaries. Gonads from 34 fetuses between 9 weeks and 20 weeks of gestation were obtained from the Department of Pathology and the Birth Defects Research Laboratory at the University of Washington. Relative transcript levels were determined using the Affymetrix Human Genome U133A Plus 2.0 arrays.
Global gene expression in the human fetal testis and ovary.
Specimen part
View SamplesA subset of GC B cells that have stopped cycling, upregulated CD38 and downregulated BCL-6 is functionally verified as GC-derived memory B cell precursors (GC-MPs). RNA-seq analyses of the transcriptome were used to probe the developmental trajectory of these cells and their responses to IL-9, a cytokine that is found to drive the memory development from the GC. Overall design: Differential gene expression analyses between GC-MP cells and regular GC B cells in G1 phase (GC-MPP cells); Gene expression profiling of different GC subsets in comparison to memory B cells and plasma cells; acute effects of in vivo IL-9 or anti-IL-9 treatment on GC-MP or GC-MPP cells.
Germinal-center development of memory B cells driven by IL-9 from follicular helper T cells.
Specimen part, Cell line, Treatment, Subject
View SamplesImmune thrombocytopenia (ITP) is an autoimmune disease where platelets are destroyed prematurely. In the majority of children the disease resolves but in some it becomes chronic. To investigate whether the two forms of the disease are similar or separate entities we performed DNA microarray analysis of T-cells from newly diagnosed children and children with chronic ITP. We found complete separation of the expression files between the two forms of the disease. Furthermore, the gene expression of several cytokines differed between the two forms of the disease. This was also reflected in plasma with increased levels of IL-16 and TWEAK and lower levels of IL-4 in newly diagnosed compared with chronic ITP. Thus, our data indicate that the two forms of the disease may be separate entities.
Differences in gene expression and cytokine levels between newly diagnosed and chronic pediatric ITP.
Specimen part, Disease, Disease stage
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Brain iron accumulation affects myelin-related molecular systems implicated in a rare neurogenetic disease family with neuropsychiatric features.
Sex, Age, Specimen part, Disease
View SamplesDifferential gene expression is assessed in substantia nigra and basal ganglia of neurodegenertion with brain iron accumulation cases (BIA) compared to matched normal controls (c).
Brain iron accumulation affects myelin-related molecular systems implicated in a rare neurogenetic disease family with neuropsychiatric features.
Sex, Age, Specimen part, Disease
View SamplesClear cell renal cell carcinoma (ccRCC), the major histotype of cancer derived from kidney, is lack of robust prognostic and/or predictive biomarker and powerful therapeutic target. We previously identified that follistatin-like protein 1 (FSTL1) was significantly down-regulated in ccRCC at the transcription level. In the present study, we characterized, for the first time, that FSTL1 immunostaining was selectively positive in the cytoplasm of distal convoluted tubules. The expression of FSTL1 was significantly lower in ccRCC tissues than in adjacent renal tissues (P<0.001), as measured using immunohistochemistry in 69 patients with paired specimens, and lower in most ccRCC cell lines than in human embryonic kidney cells, as measured by quantitative RT-PCR. Multivariate Cox regression analysis in 89 patients with follow-up data showed that FSTL1 expression in tumors conferred a favorable postoperative prognosis independently, with a hazard ratio of 0.325 (95% confidence interval: 0.118-0.894). FSTL1 knockdown promoted anchorage independent growth, mobility, and invasion of ccRCC cell lines and promoted cell cycle from G0/G1 phases into S phase; while over-expression of FSTL1 significantly attenuated cell migration ability in ACHN cells. FSTL1 knockdown resulted in decreased expression of E-cadherin and increased expression of N-cadherin in ccRCC cell lines significantly, indicating that FSTL1 may attenuate epithelial to mesenchymal transition in ccRCC. Microarray assay indicated that NF-B and HIF-2 pathways were activated following FSTL1 knockdown in ccRCC cells. Our study indicates that FSTL1 serves as a tumor suppressor in ccRCC, up-regulation of FSTL1 in cancer cells may be a candidate target therapy for advanced ccRCC.
Follistatin-like protein 1 plays a tumor suppressor role in clear-cell renal cell carcinoma.
Specimen part, Cell line
View SamplesRNA localization is a fundamental mechanism for controlling the spatial regulation of protein synthesis within cells, as well as differential cell fates during early development. Localized RNAs are known to control critical aspects of early Xenopus development, but few have been studied in detail. We set out to identify novel transcripts localized to the vegetal cortex of Xenopus oocytes, one of the best-studied examples of RNA localization. We identified over 400 transcripts enriched in the vegetal cortex, compared with whole oocytes. Included were many novel genes, as well as known genes not thought to undergo RNA localization. These data suggest that the role of RNA localization in early development is extensive and will provide a resource for identifying candidate regulatory genes for early developmental processes.
Identification of germ plasm-associated transcripts by microarray analysis of Xenopus vegetal cortex RNA.
Specimen part, Treatment
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