Life Sciences and Chemistry

Duke University Medical Center researchers have linked elevated levels of a specific heart protein in elderly hearts to a decrease in the pumping ability of the heart.

Since levels of this protein, known as G-alpha-i, are also elevated in patients with congestive heart failure, the researchers believe that not only do they better understand why the heart’s pumping ability decreases with age, but that there may be a pharmacological approach to prevent this age-related decline.

A complete molecular-scale picture of how plants convert sunlight to chemical energy has been obtained at Purdue University, offering potential new insights into animal metabolism as well.

Using advanced imaging techniques, a team of Purdue biologists has determined the structure of the cytochrome, a protein complex that governs photosynthesis in a blue-green bacterium. While their work does not immediately suggest any industrial applications, it does reveal a wealth of information not onl

To the average person, the turkey genome may seem to be a lot of “gobbledygook.” But a just-published study in the journal, Genome, will help to ensure that the turkey that we “gobble down” at our Thanksgiving feasts will be a bird that is truly best of breed.

For the first time, researchers from the University of Minnesota and Nicholas Turkey Breeding Farms in California have collaborated to produce the first genome map, or genetic blueprint, of the domestic turkey (Meleagris gallopavo).

Scientists at the University of Pennsylvania have found a novel way to boost the paltry survival rate of cloned mammals: When two genetically identical cloned mouse embryos are combined, the aggregate embryo is considerably more likely to survive to birth.

A team from Penn’s School of Veterinary Medicine reports the results in the Oct. 1 issue of the European Molecular Biology Organization Journal.

“At the blastocyst stage, an early embryonic stage just prior to implantation,

Affymetrix Announces Commercial Launch of Single Array for Human Genome Expression Analysis

— More than 1 million probes analyze expression level of nearly 50,000 RNA transcripts and variants on a single array the size of a dime —

Affymetrix, Inc., (NASDAQ: AFFX) today launched its new GeneChip® brand Human Genome U133 Plus 2.0 Array, offering researchers the transcribed human genome on a single commercially available catalog microarray. The HG-U133 Plus 2.0 Array analyzes

An exciting and powerful service, using a new tool to investigate the genetics of human diseases, is announced today [1st October]. MRC geneservice, located in Cambridge, UK, is now able to supply researchers with fast and sensitive Affymetrix SNP genotyping in order to identify genome-wide linkage of diseases to particular markers in the human genome.

The GeneChipâ Mapping Assay kit from Affymetrix enables genotyping of more than 11,500 single nucleotide polymorphisms (SNPs) on a single arr