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Gene expression of human peripheral blood cells of patients with rheumatoid arthritis [dataset 1]

ABSTRACT: Factors responsible for radiographic severity of rheumatoid arthritis (RA) in African-Americans are poorly understood. We sought to examine genes whose expression in peripheral blood mononuclear cells (PBMCs) is associated with radiographic severity of RA. 20 control samples (from individuals without RA) were compared with 10 early mild, 10 early severe, 10 late mild, and 10 late severe RA samples. All samples were obtained from African-American individuals.

ORGANISM(S): Homo sapiens

SUBMITTER: S Bridges

PROVIDER: E-GEOD-64612 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Gene expression of human peripheral blood cells of patients with rheumatoid arthritis [dataset 2]

Project description:Factors responsible for radiographic severity of rheumatoid arthritis (RA) in African-Americans are poorly understood. We sought to examine genes whose expression in peripheral blood mononuclear cells (PBMCs) is associated with radiographic severity of RA. 20 control samples (from individuals without RA) were compared with 10 early mild, 10 early severe, 10 late mild, and 10 late severe RA samples. All samples were obtained from African-American individuals.

2015-12-31 | E-GEOD-64707 | biostudies-arrayexpress

Gene expression of human peripheral blood cells of patients with rheumatoid arthritis [dataset 2]

2015-12-31 | GSE64707 | GEO

Gene expression of human peripheral blood cells of patients with rheumatoid arthritis [dataset 1]

2015-12-31 | GSE64612 | GEO

Gene expression of human peripheral blood cells of patients with rheumatoid arthritis

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2015-12-31 | E-GEOD-64708 | biostudies-arrayexpress

The Peripheral Blood Transcriptome Predicts the Presence and Extent of Disease in Idiopathic Pulmonary Fibrosis

Project description:Peripheral blood biomarkers are needed to identify and determine the extent of idiopathic pulmonary fibrosis (IPF). Current physiologic and radiographic prognostic indicators diagnose IPF too late in the course of disease. These results demonstrate that the peripheral blood transcriptome can distinguish normal individuals from patients with IPF, as well as extent of disease when samples were classified by percent predicted DLCO, but not FVC. Gene expression profiles of peripheral blood RNA from 93 IPF patients were collected on Agilent microarrays. Blood was collected in PAXRNA tubes. 30 healthy controls are compared to IPF patients classified by disease severity when categorized by DLCO or FVC.

2012-06-30 | E-GEOD-33566 | biostudies-arrayexpress

SnoRNAs and miRNAs expression profiles underlying COVID-19 disease severity

Project description:The causative organism, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), exhibits a wide spectrum of clinical manifestations in disease-ridden patients. Differences in the severity of COVID-19 ranges from asymptomatic infections and mild cases to the severe form, leading to acute respiratory distress syndrome (ARDS) and multiorgan failure with poor survival. MiRNAs can regulate various cellular processes, including proliferation, apoptosis, and differentiation, by binding to the 3′UTR of target mRNAs inducing their degradation, thus serving a fundamental role in post-transcriptional repression. Alterations of miRNA levels in the blood have been described in multiple inflammatory and infectious diseases, including SARS-related coronaviruses. We used microarrays to delineate the miRNAs and snoRNAs signature in the peripheral blood of severe COVID-19 cases (n=9), as compared to mild (n=10) and asymptomatic (n=10) patients, and identified differentially expressed transcripts in severe versus asymptomatic, and others in severe versus mild COVID-19 cases. A cohort of 29 male age-matched patients were selected. All patients were previously diagnosed with COVID-19 using TaqPath COVID-19 Combo Kit (Thermo Fisher Scientific, Waltham, Massachusetts), or Cobas SARS-CoV-2 Test (Roche Diagnostics, Rotkreuz, Switzerland), with a CT value < 30. Additional criterion for selection was age between 35 and 75 years. Participants were grouped into severe, mild and asymptomatic. Classifying severe cases was based on requirement of high-flow oxygen support and ICU admission (n=9). Whereas mild patients were identified based on symptoms and positive radiographic findings with pulmonary involvement (n=10). Patients with no clinical presentation were labelled as asymptomatic cases (n=10).

2022-03-01 | E-MTAB-10970 | biostudies-arrayexpress

microRNA changes during pDC activation

Project description:To identify microRNA changes during plasmacytoid dendritic cell (PDC) activation, we stimulated human primary PDCs with 10ug/ml R837 (Invivogen, San Diego, CA, USA) for 4 hours. Purified human pDCs were divided into two parts: one was cultured with medium alone, another was cultured with R837. 4 hours later, cells were collected and total RNA was extracted for the TaqManM-BM-. Human MicroRNA Arrays. The experiment was duplicated (sample1 and sample2).

2013-03-25 | E-GEOD-21160 | biostudies-arrayexpress

Characterisation of the blood RNA host response underpinning severity in COVID-19 patients

Project description:Infection with SARS-CoV-2 has highly variable clinical manifestations, ranging from asymptomatic infection through to life-threatening disease. Host whole blood transcriptomics can offer unique insights into the biological processes underpinning infection and disease, as well as severity. We performed whole blood RNA-Sequencing of individuals with varying degrees of COVID-19 severity. We used differential expression analysis and pathway enrichment analysis to explore how the blood transcriptome differs between individuals with mild, moderate, and severe COVID-19, performing pairwise comparisons between groups.

2022-07-19 | E-MTAB-10926 | biostudies-arrayexpress

Effects of endothelin A receptor blockade on renal interstitial disease in Alport mice

Project description:Total RNA was isolated from renal cortex from wild type and and alport mice given sitaxentan or vehicle from 2 to 7 weeks of age. RNA was analyzed by real time RT-PCR using the Qiagen Mouse Fibrosis PCR Array according to the manufacturer's instructions.

2016-04-30 | E-MTAB-3720 | biostudies-arrayexpress

microRNA profiles of hematopoietic derivatives

Project description:Hematopoietic stem cells (HSCs) can regenerate the entire hematopoietic system in vivo, providing the most relevant criteria to measure candidate HSCs derived from human embryonic stem cell (hESC) or induced pluripotent stem cell (hiPSC) sources. Here, we show that unlike primitive hematopoietic cells derived from hESCs, phenotypically identical cells derived from hiPSC are more permissive to graft the bone marrow of xenotransplantation recipients. Despite establishment of bone marrow graft, hiPSC-derived cells fail to demonstrate hematopoietic differentiation in vivo. However, once removed from recipient bone marrow, hiPSC-derived grafts were capable of in vitro multilineage hematopoietic differentiation, indicating that xenograft imparts a restriction to in vivo hematopoietic progression. This failure to regenerate multilineage hematopoiesis in vivo was attributed to the inability to downregulate key microRNAs involved in hematopoiesis. Based on these analyses, our study indicates that hiPSCs provide a beneficial source of pluripotent stem cell-derived hematopoietic cells for transplantation compared with hESCs. Since use of the human-mouse xenograft models prevents detection of putative hiPSC-derived HSCs, we suggest that new preclinical models should be explored to fully evaluate cells generated from hiPSC sources. Human pluripotent stem cell-derived hematopoietic cells were isolated and qPCR-based microRNA profiling was performed.

2012-02-18 | E-GEOD-35923 | biostudies-arrayexpress

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