Analysing heart disease with Applied Biosystems' Expression Array System
News Sep 20, 2005
Researchers at the Leiden/Amsterdam Center for Drug Research (LACDR) have announced that they are using the Applied Biosystems Expression Array System to identify genes that may predispose towards atherosclerosis, and validating them using Applied Biosystems' TaqMan® Gene Expression Assays.
"We mainly focus on gene expression in the liver, where we are particularly interested in lipid metabolism and homeostasis, and on monocytes and T cells in the immune system,” explained Dr Johan Kuiper, associate professor at the LACDR.
“We are comparing gene expression in diseased and treated diseased samples with normal samples."
"The Applied Biosystems 1700 Analyzer, which is part of the Expression Array System, has been excellent, it is very sensitive and we are really happy with the data.”
“We have run a number of experiments and, in particular, there is very good correlation between the gene expression patterns we find using the 1700 Analyzer and with the TaqMan assays.”
“We chose the 1700 Analyzer for several reasons, including the internal standards, which allow us to get an absolute value for a gene's expression level, and the ease of analysing the arrays - we do not have to draw grids around the spots during the analysis.”
“We hope to eventually identify specific genes and pathways or genetic mutations that might be involved in atherosclerosis development."
Back in 2009, researchers identified a herd of Awassi sheep suffering from "day blindness". As that term implies, these sheep were blind during the day (in bright light) but could see at night, in low-light conditions. After identifying the genetic basis of this blindness, researchers have now successfully used gene therapy to restore their daytime vision.READ MORE