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Mice put into "suspended animation" in U.S.

Researchers from the University of Washington and the Fred Hutchinson Cancer Research Centre in Seattle have placed mice in a state of near suspended animation, raising the possibility that in future hibernation could be induced in humans.

22 Apr 2005

Enzyme that helps trigger the development of leukemia

Scientists at the University of North Carolina at Chapel Hill have identified an enzyme that helps trigger the development of leukemia, a cancer of blood cells.

21 Apr 2005

New method for obtaining sequence information from thousands of genomes simultaneously

One of the world’s leading scientists, Nobel Prize winner, Dr Sydney Brenner, has devised a new method for obtaining sequence information from thousands of genomes simultaneously. Current technologies can only analyse one genome at a time.

20 Apr 2005

New method for the study of ion channel gating kinetics

An ion channel is a protein pore that lets ions (charged atoms such as calcium) pass through a cell's membrane. The method fits data to a new class of models, called manifest interconductance rank (MIR) models, which will give researchers a better understanding of the mechanisms by which ion channels open and close.

19 Apr 2005

Scientists reveal the shape of a protein that helps retroviruses break into cells

Retroviruses are among the trickier and more malicious disease agents, causing AIDS and cancers such as leukemia. The viruses manage to sneak into cells with the help of special protein assemblies scattered all over their surfaces. These retrovirus surface proteins cause the membrane envelope of the virus to fuse with the membrane of the cell, spilling virus RNA into the cell to wreak damage.

13 Apr 2005

Scientists use transcription factors to increase insulin production in diabetic mice

A group of Japanese scientists has used gene therapy to deliver three insulin transcription factors, MafA, PDX-1, and NeuroD, to the livers of diabetic mice. As a result, the mice experienced an increase in insulin gene expression and insulin production, raising the possibility that this could eventually be used to treat diabetes.

13 Apr 2005

New test for cancer, more sensitive than any existing techniques

Speaking at the Institute of Physics conference Physics 2005 in Warwick, scientists will reveal a new test for cancer, more sensitive than any existing technique and capable of predicting for the first time whether a tumour has spread.

12 Apr 2005

Swedish team find gene with link to major diseases

In an exciting new discovery, which could affect millions of people, scientists from the Karolinska Institute and the Centre for Molecular Medicine (CMM) in Stockholm, Sweden, have identified a gene which links autoimmune diseases with cardiovascular diseases.

12 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

An exceptionally effective lead-detection protein

Scientists from the U.S. Department of Energy’s Brookhaven National Laboratory and the University of Chicago have discovered that a member of a well-known protein family is better at detecting lead than any other known substance.

5 Apr 2005

Immune cells in the liver travel in the liver's blood vessels with surprising speed and agility

Scientists at New York University School of Medicine viewing the actual journey of immune cells in the liver have found that these cells travel in the liver's blood vessels with surprising speed and agility.

4 Apr 2005

Rabies, HIV, cancer and malaria could all be prevented with pills in the future

Rabies, HIV, cancer and malaria could all be prevented with pills in the future, if a new technique using specially modified viruses to deliver vaccines is adopted, according to scientists speaking today (Tuesday, 05 April 2005) at the Society for General Microbiology's 156th Meeting at Heriot-Watt University, Edinburgh.

4 Apr 2005

Scientists identify novel regulator of telomere homeostasis

Each of our 46 chromosomes is capped by a telomere – a long stretch of repeated DNA (TTAGG). Telomeres play a key protective function in our cells, and now Dr. In Kwon Chung and colleagues at Yonsei University (Seoul, Korea) and the University of Central Florida reveal a novel mechanism to modulate telomere length.

3 Apr 2005

Dozens of new genes identified in X chromosome

By intensely and systematically comparing the human X chromosome to genetic information from chimpanzees, rats and mice, a team of scientists from the United States and India has uncovered dozens of new genes, many of which are located in regions of the chromosome already tied to disease.

3 Apr 2005

Protein Mnd2 protects chromosome bonds

The protein Mnd2 inhibits premature separation of chromosomes during the formation of gametes. The now published discovery of this regulatory function may help to understand the origin of some common congenital chromosome defects.

30 Mar 2005

New color-coded test for protein folding

Every protein--from albumin to testosterone--is folded into a unique, three-dimensional shape that allows it to function properly. Now Stanford University scientists have developed a simple test that instantly changes color when a protein molecule attached to a gold nanoparticle folds or unfolds.

28 Mar 2005

Antibodies from tobacco plants protect against anthrax

Scientists have produced, in tobacco plants, human antibodies that could be used to treat anthrax exposure. They reported their findings at the 2005 American Society for Microbiology Biodefense Research Meeting.

23 Mar 2005

Discovery that sheds new light upon the growth and development of human natural killer (NK) cells

Scientists here have made a major discovery that sheds new light upon the growth and development of human natural killer (NK) cells, powerful but somewhat mysterious components of the body’s immune system that are the first line of defense against cancer and infectious diseases.

23 Mar 2005

Tiny scaffolding allows stem cells to become working fat cells

Researchers here have used a new microscopic, three-dimensional scaffolding to coax mouse stem cells to transform themselves into fat cells, and then to function identical to how fat cells naturally do in the body.

22 Mar 2005

Green alga closes wounds by means of enzymatic activation of a cross-linking protein

A small wound is painful, but is normally not a problem. Like all multicellular organisms, our bodies form new tissue around the damaged cells. Single-celled organisms cannot do this. In order to survive an injury, they have to quickly repair the cell itself. Large single-celled organisms, such as the green alga Caulerpa taxifolia, which can be several meters long, are especially at risk for injuries.

22 Mar 2005