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Scientists isolate stem cells in womb tissue

Scientists in Australia have found a way of identifying probable stem cells in the lining of women's wombs. The finding opens up the possibility of using the stem cells for tissue engineering applications such as building up natural tissue to repair prolapsed pelvic floors.

13 Sep 2007

Biodiversity of protozoa may be much higher than previously realised

In contrast to previous findings, it seems that the global distribution of macro- and microorganisms might be similar. A study in the online open access journal, BMC Evolutionary Biology, shows that some protozoa are globally dispersed, while others are geographically restricted - by looking at a new fast-evolving DNA marker.

13 Sep 2007

One insect can initiate a biological invasion

A new study by York University biologists Amro Zayed and Laurence Packer has shown that a lone insect can initiate a biological invasion. Zayed, a recent graduate of Packer's lab, examined patterns of genetic diversity in both native European and invasive North American populations of a solitary bee.

13 Sep 2007

Was ability to run early man's Achilles heel?

The earliest humans almost certainly walked upright on two legs but may have struggled to run at even half the speed of modern man, new research suggests.

From The University of Manchester 12 Sep 2007

Mouse model for schizophrenia

Scientists at Johns Hopkins have developed a mouse model for schizophrenia in which a mutated gene linked to schizophrenia can be turned on or off at will.

11 Sep 2007

Clearer picture of how a dividing cell rebuilds the nuclear envelope

Just how a dividing cell rebuilds the nuclear envelope, the protective, functional wrapping that encases both the original and newly copied genetic material, has been a source of controversy for the last 20 years.

10 Sep 2007

A molecular probe that may one day light up tumors while surgery is in progress

Researchers at the Stanford University School of Medicine have developed a molecular probe that sets aglow tumor cells within living animals. Their goal is to use the probe to improve the diagnosis and treatment of cancer and other diseases.

10 Sep 2007

First comprehensive tests compare social and physical skills of children, chimpanzees and orangutans

Apes bite and try to break a tube to retrieve the food inside while children follow the experimenter's example to get inside the tube to retrieve the prize, showing that even before preschool, toddlers are more sophisticated in their social learning skills than their closest primate relatives, according to a report published in the 7 September issue of the journal Science , published by AAAS, the nonprofit science society.

10 Sep 2007

DNA and nanotechnology

DNA is one of the most popular building blocks of nanotechnology and is commonly used to construct ordered nanoscale structures with controlled architectures.

5 Sep 2007

Ultraconserved elements in the genome: Are they indispensable?

Three years ago, "ultraconserved elements" were discovered in the genomes of mice, rats, and humans.

5 Sep 2007

Selection on genes underlying schizophrenia during human evolution

Several genes with strong associations to schizophrenia have evolved rapidly due to selection during human evolution, according to new research in the Proceedings of the Royal Society B (Wednesday 5 September 2007).

5 Sep 2007

Probiotics could give us safer pork products

Probiotics, the friendly bacteria beloved of yoghurt advertisers, may be an effective substitute for growth promoting antibiotics in pigs, giving us safer pork products, according to scientists speaking (Wednesday 5 September 2007) at the Society for General Microbiology's 161st Meeting at the University of Edinburgh, UK, which runs from 3-6 September 2007.

5 Sep 2007

Novel insecticidal toxins from bacteria

A light-emitting strain of bacteria and a nematode worm, which work together to prey on soil-dwelling insects, use insecticidal toxins to kill their insect hosts.

5 Sep 2007

Nanotechnology helps identify molecular signature common to Lou Gehrig's disease

A nanotechnology developed by a University at Buffalo professor has enabled researchers to identify a molecular signature common to both familial and sporadic cases of amyotrophic lateral sclerosis (ALS), or Lou Gehrig's disease.

5 Sep 2007

Fruit flies have a taste for carbonated water

That fruit fly hovering over your kitchen counter may be attracted to more than the bananas that are going brown; it may also want a sip of your carbonated water.

4 Sep 2007

Mice stressed in simulated weightlessness show organ atrophy

A ground-based, experimental model used to simulate astronaut weightlessness in space has provided Rutgers scientists an opportunity to study the effects of stress on immune organs.

4 Sep 2007

Flies can turn off their immune response

The immune response is actively turned on to target and destroy foreign infectious elements, but in the interests of self-preservation, it is just as important to turn the immune system off to avoid damage to oneself by "friendly fire."

4 Sep 2007

First individual genome sequence of one person

Independent sequence and assembly of the six billion base pairs from the genome of one person ushers in the era of individualized genomics

4 Sep 2007

Marine sponges may bring about new drugs

Thousands of interesting new compounds have been discovered inside the bodies of marine sponges according to scientists speaking today (Tuesday 4 September 2007) at the Society for General Microbiology's 161st Meeting at the University of Edinburgh, UK, which runs from 3-6 September 2007.

4 Sep 2007

Autoimmune response, triggered by genes, can be a barrier to producing a viable offspring

Plant biologists at the Max Planck Institute of Developmental Biology and the University of North Carolina at Chapel Hill have discovered that an autoimmune response, triggered by a small number of genes, can be a barrier to producing a viable offspring.

4 Sep 2007