Blog Comments

Kinetica Online is pleased to provide direct links to commentaries from our senior editor Dr. Steven Pelech has posted on other blogs sites. Most of these comments appear on the GenomeWeb Daily Scan website, which in turn highlight interesting blogs that have been posted at numerous sites in the blogosphere since the beginning of 2010. A wide variety of topical subjects are covered ranging from the latest scientific breakthroughs, research trends, politics and career advice. The original blogs and Dr. Pelech’s comments are summarized here under the title of the original blog. Should viewers wish to add to these discussions, they should add their comments at the original blog sites.

The views expressed by Dr. Pelech do not necessarily reflect those of the other management and staff at Kinexus Bioinformatics Corporation. However, we wish to encourage healthy debate that might spur improvements in how biomedical research is supported and conducted.

Presenilin

Early Arrival

In Lancet Neurology, a team of researchers reported a high prevelance of mutations in the presenilin 1, or PSEN1, gene linked to Alzheimer's that were apparent in 20 of 44 young adults from Colombia at least 20 years before the onset of symptoms. Apart from differences in brain structure and function between the two groups, the researchers also detected increased cerebrospinal fluid levels of amyloid beta. S. Pelech notes that in many clinical studies with Alzheimer's patients, there is actually usually a DECREASE in the level of the pathogenic 42 kDa beta-amyloid (A-beta42) protein in their CSF relative to healthy controls and patients with Parkinson's disease and progressive supra nuclear palsy. He further describes research at Kinexus Bioinformatics Corporation using antibody microarrays that uncovered 36 proteins that displayed abnormal phosphorylation or expression in peripheral blood lymphocytes from Alzheimer's patients as compared to controls that were only mildly cognitively impaired or had other neurological disorders. Read More...