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142 projects found

Mutual Antagonistic Relationship Between Prostagland...

PGE2 is a major mediator of inflammation and is present at high concentrations in the synovial fluid of rheumatoid arthritis (RA) patients. PGE2, acting through the EP4 receptor, has both pro- and anti-inflammatory roles in vivo. To shed light on this dual role of PGE2, we investigated its effects in whole blood and in primary human fibroblast-like synoviocytes. Gene expression analysis in human leukocytes, confirmed at the protein level, revealed an EP4-dependent inhibition of the expressio...

Keywords: NCBI GEO expression profiling by array

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A modular analysis framework for the discovery of bi...

Transcriptional modules were used as a basis for the selection of biomarkers and the development of a multivariate transcriptional indicator of disease progression in patients with systemic lupus erythematosus.

Keywords: NCBI GEO expression profiling by array

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Integrated Network and Microarray Analysis to Identi...

A significant proportion of acute myocardial infarction (MI) patients develop heart failure (HF). Early identification of patients at risk of developing HF after MI would be a major breakthrough. An approach combining the power of biological information networks and the precision of microarray analysis was undertaken to identify biomarkers of HF. A set of three new biomarkers of HF was identified and provided significantly improved prediction accuracy than microarray or network analysis alone...

Keywords: NCBI GEO expression profiling by array

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Microarray predictor of response to infliximab in rh...

We sought to find a gene-expression multigene predictor of response to infliximab therapy in Rheumatoid Arthritis patients. Using internal and external cross-validation systems we have built and validated an 8-gene predictor for response to infliximab.

Keywords: NCBI GEO expression profiling by array

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Interactions of cytokines in peripheral blood cells ...

SLE patients are always with various disease manifestation. Various cytokines are pointed interacting and playing pathological roles in SLE although the etiopathology is still obscure. In this study, we aimed to investigate the effects of cytokine interactions in the immune response of SLE patients. Overexpressed interferon-inducible(IFI) genes were confirmed in peripheral blood from SLE patients. Using network-based analysis on the immune response-related genes, several networks including cy...

Keywords: NCBI GEO expression profiling by array

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Gene Expression Analysis in Peripheral Blood of Pati...

Peripheral blood cells in patients with rheumatoid arthritis before/after IL-6 inhibitionThe obtained conclusions on the change of each gene expression level before and after MRA medication were as follows.(1) In the case of IL-6, the specific time profile that the expression level dropped at day 21 and increased to some extent at day 42 was observed in 2 of 18 subjects. In other subjects, quite small change or small increase after day 7 was observed.(2) In the case of IL-6R as well as in IL-...

Keywords: NCBI GEO expression profiling by array

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Early and long-standing rheumatoid arthritis: molecu...

At a given time, rheumatoid arthritis (RA) is a heterogeneous disease and its underlying molecular mechanisms is still poorly understood. Because previous microarrays studies have only focused on late RA stages, we aimed to compare the biological and molecular profiles in early and long-standing (LS) RA. Synovial biopsies obtained by arthroscopy were performed in 4 early untreated RA patients, 4 LS treated RA patients and 7 control patients. Extracted mRNA were linearly amplified and used fo...

Keywords: NCBI GEO expression profiling by array

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Activation of mTOR controls the loss of TCRζ in lupu...

CD3-positive T cells were negatively isolated from 10 SLE patients and 9 healthy controls without SLE. All of the SLE samples and control samples were compared with one another to identify baseline differences in expression due to the disease. Next, T cell preparations from 4 of the control subjects were stimulated with either Nitric Oxide (NOC-18) 600 uM for 24hr or stimulated through CD3/CD28 for 24hr to determine which genes were responsive to these signaling mechanisms. Here, we show th...

Keywords: NCBI GEO expression profiling by array

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