Evolution News and Research

RSS

WHO warns of threat of bird flu pandemic

A Vietnamese study which has shown that there are signs of greater human to human transmission of bird flu, has prompted the UN health agency to call on countries around the world to continue with their preparations for a threatened flu pandemic.

20 May 2005

Disabling gene defuses rheumatoid arthritis in mice

Scientists studying mice have identified a gene that allows immune cells known as neutrophils to protect themselves from the inflammatory chemicals they secrete.

16 May 2005

Reconstruction of the lower jaw with a fibula autotrasplant

The University Hospital of the University of Navarra has carried out a complicated surgical operation on a child who had a particularly large benign tumour located in the mandibular region. The procedure involved the extraction of the lower jaw and its substitution by a bone transplant from the fibula of the patient.

10 May 2005

Simple and efficient method for creation of novel protein functions in an existing protein scaffold

By designing a molecular bridge, scientists at the University of Illinois at Urbana-Champaign have forged a successful pathway through a complex ocean of barriers: They've changed the function of a protein using a co-evolution approach.

8 May 2005

The humble snail is helping scientists explore ways of treating memory loss in humans

Drug manufacturers are looking at ways to create a "Viagra for the brain", which could alleviate memory loss, one of the distressing symptoms of diseases such as Alzheimer's. Work carried out by Dr George Kemenes, Senior Fellow in the Department of Biology and Environmental Science at the University of Sussex, will hopefully help to show how such drugs could work.

4 May 2005

Children do well with shorter fast before surgery

Children facing surgery can be made more comfortable with little risk by allowing them to have certain liquids up to two hours before the operation, a new review of recent studies has found.

27 Apr 2005

New survey shows physicians recognize health disparities and address them in their practices

Many of the nation's physicians are now involved in the effort to eliminate racial and ethnic health care disparities, according to a recent survey released by the Commission to End Health Care Disparities.

27 Apr 2005

Bypass surgery does not carry long term neurological effects

In a wide retrospective review of the effects of coronary artery bypass grafting (CABG) on memory and other brain functions a team of U.S. researchers has concluded that, while there may be transient short-term effects, the procedure itself probably does not cause late or permanent neurological effects.

26 Apr 2005

Evidence suggests bypass surgery free of long-term brain effects

A broad retrospective review of the effects of coronary artery bypass grafting (CABG) on memory and other brain functions concludes that, while there may be transient short-term effects, the procedure itself probably does not cause late or permanent neurological effects.

25 Apr 2005

Common genetic mutation that increases the risk of inheriting Hirschsprung disease

Gene hunters at Johns Hopkins have discovered a common genetic mutation that increases the risk of inheriting a particular birth defect not by the usual route of disrupting the gene's protein-making instructions, but by altering a regulatory region of the gene. Although the condition, called Hirschsprung disease, is rare, its complex genetics mimics that of more common diseases, such as diabetes and heart disease.

13 Apr 2005

Protein that regulates cholesterol levels may lead to new drug targets in the fight against obesity

A protein that regulates cholesterol levels in the body also is responsible for maintaining a healthy balance between fat storage and fat burning, according to a UT Southwestern Medical Center study that may lead to new drug targets in the fight against obesity.

12 Apr 2005

Findings will stir new research in bacterial evolution

Bacteria acquired up to 90 percent of their genetic material from distantly related bacteria species, according to new research from The University of Arizona in Tucson.

7 Apr 2005

Researchers set a new standard in the design and engineering of nuclear hormone receptor-based genetic on-off switches

Researchers at the University of Illinois at Urbana-Champaign have set a new standard in the design and engineering of nuclear hormone receptor-based genetic on-off switches, without causing new problems or aggravating existing ones.

7 Apr 2005

Largest "gene deserts" yet discovered in the human genome sequence

A detailed analysis of chromosomes 2 and 4 has detected the largest "gene deserts" known in the human genome and uncovered more evidence that human chromosome 2 arose from the fusion of two ancestral ape chromosomes, researchers supported by the National Human Genome Research Institute (NHGRI).

6 Apr 2005

Scientist finds different paths lead to similar cognitive abilities

Despite the divergent evolutionary paths of dolphins and primates -- and their vastly different brains -- both have developed similar high-level cognitive abilities, says Emory University neuroscientist and behavioral biologist Lori Marino.

5 Apr 2005

Radiation for prostate cancer doubles the risk of developing rectal cancer

Men who undergo radiation for prostate cancer have nearly double the risk of developing rectal cancer when compared to men who opt to have surgery to treat prostate cancer, according to a study published today in the American Gastroenterological Association (AGA) journal Gastroenterology.

3 Apr 2005

Wolbachia genome reveals new targets to combat infectious disease

More than a billion people are at risk for infection with filarial nematodes, parasites that cause elephantiasis, African river blindness, and other debilitating diseases in more than 150 million people worldwide.

29 Mar 2005

New prostate cancer test

Tessera, Inc., a Seattle-based biomedical company, has released its first product, ProstaMark EPCA (Early Prostate Cancer Antigen), as an Analyte Specific Reagent (ASR) for commercial use in pathology laboratories to assist pathologists in their efforts to determine if cancer is present in the prostate.

28 Mar 2005

Alcohol relapse adversely affects liver transplant survival

A new study on how alcohol relapse affects survival rates after liver transplants found that it adversely affected survival rates only after 10 years. The decrease in survival rates may, however, be due to other alcohol-related diseases.

22 Mar 2005

RNA loops and knots guide genetic modifications

University of Connecticut Health Center scientist, Robert Reenan, has uncovered new rules of RNA recoding - a genetic editing method cells use to expand the number of proteins assembled from a single DNA code.

21 Mar 2005