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-64612 | biostudies-arrayexpress

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

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

Genome-wide association study of skin pigmentation in African Americans

Project description:Genome-wide association study of skin pigmentation in African Americans

| PRJNA681943 | ENA

Genome-wide association study of skin pigmentation in African Americans

Project description:Genome-wide association study of skin pigmentation in African Americans

| PRJNA681942 | ENA

Rheumatoid arthritis

Project description:Rheumatoid arthritis (RA) is a chronic, inflammatory joint disease of unknown etiology and pronounced inter-patient heterogeneity. To characterize RA at the molecular level and to uncover key pathomechanisms, we performed whole-genome gene expression analyses. Synovial tissues from rheumatoid arthritis patients were compared to those from osteoarthritis patients and to normal donors. Keywords: disease state analysis

2004-11-04 | GSE1919 | GEO

Uncovering the role admixture in health disparities: Association of hepatocyte gene expression and DNA methylation to African Ancestry in African-Americans [Methylation]

Project description:In African Americans (AA), the proportion of West African ancestry (WAA) may explain the genetic drivers of health disparities in disease. Analysis of RNA sequencing data from sixty AA-derived primary hepatocytes identified 32 gene expression profiles associated with WAA (FDR <0.05) with enrichment in angiogenesis and inflammatory pathways (FDR <0.1). Association of DNA methylation to WAA identified 1037 differentially methylated regions (FDR <0.05), with hypomethylated genes enriched for drug response pathways. Within the PharmGKB pharmacogene, VDR, PTGIS, ALDH1A1, CYP2C19 and P2RY1 were associated with WAA (p <0.05) with replication of CYP2C19 and VDR in the GTEx liver cohort. For every 1% increment in WAA, P2RY1 gene expression increased by 1.6% and CYP2C19 gene expression decreased by 1.4%, suggesting effects on clopidogrel response and platelet aggregation. We conclude that WAA contributes to variablity in hepatic gene expression and DNA methylation with identified genes indicative of health disparities prevalent in AAs.

2019-10-31 | GSE123995 | GEO

Resistant Hypertension in African Americans

Project description:Resistant Hypertension in African Americans

| PRJNA80271 | ENA

Uncovering the role admixture in health disparities: Association of hepatocyte gene expression and DNA methylation to African Ancestry in African-Americans [RNA-seq]

2019-10-31 | GSE124074 | GEO