Showing posts with label dna. Show all posts
Showing posts with label dna. Show all posts

December 23, 2010

Sex Reversal Gene: Male Mice Can Be Created Without Y Chromosome Via Ancient Brain Gene

ScienceDaily for December 22, 2010 reported on male mice created with two X-chromosomes.

However, Adelaide researchers have discovered a way of creating a male mouse without a Y chromosome by activating a single gene, called SOX3, in the developing fetus. SOX3 is known to be important for brain development but has not previously been shown to be capable of triggering the male pathway.

September 30, 2010

First Direct Evidence That ADHD Is a Genetic Disorder: Children With ADHD More Likely to Have Missing or Duplicated Segments of DNA

ScienceDaily for September 30, 2010 reported on ADHD.

New research provides the first direct evidence that attention-deficit/hyperactivity disorder (ADHD) is a genetic condition. Scientists at Cardiff University found that children with ADHD were more likely to have small segments of their DNA duplicated or missing than other children.

August 25, 2010

Vitamin D Found to Influence Over 200 Genes, Highlighting Links to Disease

ScienceDaily for August 24, 2010 reported on vitamin D and our genes.

It is estimated that one billion people worldwide do not have sufficient vitamin D. This deficiency is thought to be largely due to insufficient exposure to the sun and in some cases to poor diet. As well as being a well-known risk factor for rickets, there is a growing body of evidence that vitamin D deficiency also increases an individual's susceptibility to autoimmune conditions such as multiple sclerosis (MS), rheumatoid arthritis and type 1 diabetes, as well as certain cancers and even dementia.

July 24, 2010

Can I Buy You a Drink? Genetics May Determine Sensitivity to Other People's Drinking Behavior

ScienceDaily for July 23, 2010 reported on sensitivity to drinking by others.

Your friend walks into a bar to meet you for happy hour. He sidles up to the bar and orders a drink -- does that make you more likely to get a drink yourself? According to new findings reported in Psychological Science, a journal of the Association for Psychological Science, genetics may determine the extent to which you are influenced by social drinking cues -- signals such as advertisements, drinks placed on a bar, and seeing other people around you drinking.

July 23, 2010

Gene Linked to Aging Also Linked to Alzheimer's

ScienceDaily for July 22, 2010 reported on a gene linked to Alzheimer's Disease.

MIT biologists report that they have discovered the first link between the amyloid plaques that form in the brains of Alzheimer's patients and a gene previously implicated in the aging process, SIRT1.