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Scientists identify crucial elements necessary for repairing damaged DNA

A team of University of Sussex-led scientists has identified crucial elements necessary for repairing damaged DNA - the blueprint for all living cells.

25 Oct 2004

Dolphins brain size helps to provide some answers to how the species evolved in relation to humans

The intelligence and cognitive capabilities of dolphins and their aquatic cousins have long fascinated the public and the scientific community, but the question of how and why they have such large brains has mostly gone unanswered.

25 Oct 2004

Australian platypus research has implications for understanding the evolution of human sex determination

The mystery surrounding sex determination of the unique Australian platypus has yielded a surprising secret: it has 10 sex chromosomes.

25 Oct 2004

Insects implicated in the evolution of new human infectious diseases

Insects and other invertebrates are the arena for the evolution of new infectious diseases in humans, new research shows.

25 Oct 2004

Why some anesthesiologists end up abusing drugs

University of Florida researchers have presented a new theory at the 34th annual Society for Neuroscience on why some anesthesiologists end up abusing drugs.

25 Oct 2004

Neuroimaging initiative to track early signs of Alzheimer’s disease

Researchers are looking for ways to spot early warning signs in the brain of developing Alzheimer’s disease.

22 Oct 2004

Molecule that helps DNA replicate may make good target for cancer therapy

In order to divide, cells must first replicate their chromosomes. Cells use an array of proteins to accomplish the job, including a large enzyme complex that synthesizes new strands of DNA.

21 Oct 2004

Researchers trim count of human genes to 20,000-25,000

Scientific description of the finished human genome sequence, reducing the estimated number of human protein-coding genes from 35,000 to only 20,000-25,000, a surprisingly low number for our species.

21 Oct 2004

Laboratory test of evolutionary theory confirms the importance of connections between populations

Researchers studying the evolutionary dynamics of bacteria and viruses in bubbling glass tubes have confirmed an evolutionary theory of central importance to ecologists studying more familiar flora and fauna in the wild.

13 Oct 2004

Combination of computer science and biology could aid cancer research

The technique helps to show how cells modify their own genetic makeup and may allow cancer treatments to be tailored more precisely to a patient's disease.

11 Oct 2004

Discovery could lead to the creation of naturally decaffeinated coffee plants

Chemists at Emory University have made an important advance in harnessing the ability of bacteria to make new molecules, and their discovery could eventually lead to the creation of naturally decaffeinated coffee plants.

10 Oct 2004

Research shows C. botulinum uses SONO to detect nitric oxide

A deadly bacterium's defense against a mortal molecular enemy illuminates the origins and structure of a vital protein involved in human cell signaling, University of Texas Medical School scientists report in Science Express.

8 Oct 2004

Breastfeeding women increase sexual desire among other women

Breastfeeding women and their infants produce a substance that increases sexual desire among other women, according to research at the University of Chicago.

6 Oct 2004

Reliability theory explains human aging

The quest to understand and control aging has led University of Chicago biologists Leonid Gavrilov and Natalia Gavrilova to draw inspiration from what might seem an unlikely source: reliability engineering.

4 Oct 2004

Drug-resistant bacteria increasingly causing infections in healthy people

An emerging form of so-called "flesh-eating bacteria" is caused by a strain that is resistant to standard first-line antibiotics. The same type of bacteria, methicillin-resistant Staphylococcus aureus (MRSA) is causing record numbers of less-serious skin infections in children and also is emerging as a cause of pneumonia, which can be deadly

30 Sep 2004

Men more than women favor paternity testing at birth

Substantially more men than women favor routine paternity testing when a baby is born, according to a recent University of Washington survey, but the surprise to researchers is that the percentage of men favoring such testing wasn't higher.

28 Sep 2004

Research may lead to alternatives to antibiotic drugs for treating bacterial diseases

UCLA microbiologists report the discovery of a new class of genetic elements, similar to retroviruses, that operate in bacteria, allowing them to diversify their proteins to bind to a large variety of receptors.

23 Sep 2004

Resveratrol in red wine, is thought to contribute to improved cardiovascular effects associated with moderate consumption of red wine

Researchers funded by the National Science Foundation (NSF) and affiliated with the Salk Institute in San Diego, Calif., have succeeded in converting chalcone synthase, a biosynthetic protein enzyme found in all higher plants, into an efficient resveratrol synthase.

20 Sep 2004

New insights into ancient mating and migration patterns in humans

Men have been tomcatting around since time immemorial, and some traveled far from home to do it, new research suggests.

20 Sep 2004

Nicaraguan deaf children create a new sign language entirely their own

At a school in Managua, Nicaragua, deaf children are speaking a new language entirely their own, which nonetheless has remarkable similarities to the world's other languages. Researchers studying these similarities suggest this week in Science that, in fact, children give language its most fundamental, universal features just by the way they learn it.

18 Sep 2004