Genetics News and Research

Latest Genetics News and Research

Reducing levels of the protein tau can prevent seizures and neurological deficits related to Alzheimer's disease

The findings, reported in the journal Science, demonstrate that when tau is removed from mice genetically engineered to simulate Alzheimer's disease, their memory function is retained and they live a normal lifespan. Reducing tau levels also made mice more resistant to epileptic seizures.

4 May 2007

Gene-for-gene interactions help bacteria kill their host

Scientists have discovered that a cousin of the plague bacterium uses a single gene to out-fox insect immune defences and kill its host.

4 May 2007

New understanding of genetic mutation that contributes to autism

The investigators now know more about how the mutation causes problems with a specific gene and are testing for additional mutations of the same gene in other people with autism.

4 May 2007

Master regulator for epithelial tissue regeneration found

The skin's ability to replace the tissue it sloughs off is controlled by a variety of genes.

4 May 2007

There may be a real code to chromosomal organization

The identification of a cluster of essential genes on mouse chromosome 11 as well as similar clusters on the chromosomes of other organisms , including humans , buttresses the argument that there may be rules as to how genes are structured or laid out on chromosomes, said the Baylor College of Medicine senior author of a report that appears online in the Public Library of Science Genetics, an open-access publication.

4 May 2007

Scientists work out mechanism underlying asymmetric cell division in nematode worms

When a cell divides, normally the result is two identical daughter cells. In some cases however, cell division leads to two cells with different properties. This is called asymmetric cell division and plays an important role in embryonic development and the self-renewal of stem cells.

4 May 2007

Renewal of Echinacea and St John's Wort research

A five-year-old research center dedicated to understanding and improving Echinacea and Hypericum perforatum (St. John's wort) has received $4.4 million in continuation funding from the National Institutes of Health. The renewal is for three years.

4 May 2007

Treating ticks with antibiotics inhibits their reproduction

Bacteria that may provide ticks with essential nutrients they can't get from their meals of blood could be a key to controlling ticks and the diseases they carry, a new study published in the PLoS ONE shows.

4 May 2007

Study of damaged gene gives insight into causes of mental illness

Scientists have pinpointed how different types of damage in types of damage to the same gene can cause some people to suffer from schizophrenia while others have major depression.

4 May 2007

Single gene is responsible for most cool temperature sensation

The discovery, reported in the May 3 issue of the journal Neuron, might one day lead to the development of drugs that induce cold sensation as an analgesic, or block it to prevent certain forms of chronic pain associated with cold sensation.

4 May 2007

New hope for patients with premature aging condition progeria

There is renewed hope for treatment of a rare genetic condition that causes rapidly accelerated aging and leads to an average life expectancy of 13 years.

4 May 2007

Lab-on-a-chip speeds proteomics research

In recent years, the science of biology has been dominated by genomics, the study of genes and their functions.

4 May 2007

Scientists discover molecular mechanism that keeps HSV-1 activation restricted to a single gene for months or even years

By adulthood, most people have suffered at least one bout of painful cold sores brought on by the Herpes simplex virus 1, also known as HSV-1.

4 May 2007

Gene malfunctions cause schizophrenia, depression symptoms in mice

Researchers have demonstrated for the first time that malfunction of a gene that had been associated with schizophrenia and depression does indeed cause symptoms of those disorders.

4 May 2007

Nutritional benefits of egg consumption

Nine studies presented at the Experimental Biology 2007 meeting support the growing body of research on the nutritional benefits of egg consumption, including its promotion of weight loss and its role in providing choline, an essential nutrient often lacking in the diet that promotes brain and memory development and function.

4 May 2007

To live longer - eat less!

Scientists have known for a long time that animals fed diets which border on starvation live longer, but they are now saying that a particular gene is linked to calorie restriction.

3 May 2007

Expression pattern of microRNA may be useful in differentiating between chronic pancreatitis and pancreatic cancer

Pancreatic cancer is a lethal disease, with the annual deaths nearly equaling the incidence of 33,000 in the United States, according to background information in the article.

2 May 2007

Study provides better understanding of how to treat individuals affected by copper imbalances

Copper is an essential part of our lives. From copper pipes and wires - to important copper-containing proteins in the body, copper is necessary for healthy growth and neurological development.

2 May 2007

Variants of two genes involved in the inflammatory system linked to cognitive decline after heart surgery

Duke University Medical Center researchers believe their findings could help physicians identify patients at risk of suffering mental decline after heart surgery and raises the possibility that these patients could be treated with drugs that are known to dampen the inflammatory response.

2 May 2007

Biomarker discovery bodes well for better cancer diagnostics

While new findings from Ohio State University scientists suggest a genetic marker that could help distinguish between chronic pancreatitis and pancreatic cancer and gauge who will do well with cancer treatment, a pharmacologist at the Kimmel Cancer Center at Jefferson in Philadelphia sees the discovery as much more.

2 May 2007