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DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).

Genetic code for breast and colon cancers

Johns Hopkins Kimmel Cancer Center scientists have completed the first draft of the genetic code for breast and colon cancers.

7 Sep 2006

New sunscreen ingredient that actively repairs sunburnt skin

People who suffer from sunburn could soon benefit from a new sunscreen ingredient that actively repairs sunburnt skin and helps prevent the onset of skin cancer, according to research published in the Journal of Investigative Dermatology.

7 Sep 2006

Protein test on lung cancer cells predicts who will benefit from chemo

European researchers say a test can predict whether chemotherapy will help patients with lung cancer live longer after surgery.

7 Sep 2006

Researchers study cells whose membranes have been opened by ultrasound

Researchers have shown how ultrasound energy can briefly "open a door" in the protective outer membranes of living cells to allow entry of drugs and other therapeutic molecules – and how the cells themselves can then quickly close the door.

5 Sep 2006

Scientists identify novel central nervous system proteins affected by chronic alcohol exposure

Researchers at the University at Buffalo studying the effects of alcohol on the brain, using zebrafish as a model, have identified several novel central nervous system proteins that are affected by chronic alcohol exposure.

31 Aug 2006

Largest review of Loeys-Dietz syndrome to date

At least three severe, potentially fatal genetic diseases leave patients with aortas so flimsy that they can rupture in pregnancy and labor or even lesser activities, often without warning.

31 Aug 2006

Mitochondrial DNA sequencing tool updated

High-tech laboratory tools, like computers, are often updated publicly as their analytical capabilities expand. In the September issue of the Journal of Molecular Diagnostics, NIH grantees report they have developed a second generation "lab on a silicon chip" called the MitoChip v2.0 that for the first time rapidly and reliably sequences all mitochondrial DNA.

30 Aug 2006

Older twins hold the key to ageing well

Around 300 sets of twins who are 65 or older will take part in one of the largest studies of brain ageing ever undertaken in Australia.

30 Aug 2006

Morphotek granted two European technology patents

Morphotek has announced that the European Patent Office has given a "Decision of Grant" regarding the Company's US Patent 6,921,666 entitled "Methods for Generating Hypermutable Yeast" and US Patent 6,737,268 entitled "A Method for Generating Genetically Altered Antigens."

30 Aug 2006

Swedish HIV vaccine study shows prmoise

A Swedish HIV vaccine study conducted by researchers at Karolinska Institutet (KI), Karolinska University Hospital and the Swedish Institute for Infectious Disease Control (SMI) has produced surprisingly good results.

30 Aug 2006

Schering-Plough to pay $435M and plead guilty to conspiracy

Schering-Plough on Tuesday agreed to pay $435 million and plead guilty to criminal conspiracy charges to settle a federal investigation into the company's marketing practices and Medicaid charges, the AP/Houston Chronicle reports (AP/Houston Chronicle, 8/30).

30 Aug 2006

New microchip enables quick diagnosis of flu strains

Scientists from the University of Colorado at Boulder and the Centers for Disease Control and Prevention (CDC) have developed a microchip-based test that may allow more labs to diagnose influenza infections and learn more about the viruses causing illness.

30 Aug 2006

XVI International AIDS conference characterized by 'guarded optimism'

The XVI International AIDS Conference, which was held Aug. 13 through Aug. 18 in Toronto, was characterized by "guarded optimism," the Los Angeles Times reports.

30 Aug 2006

Age-related hearing loss may be genetic

Researchers at the University of Antwerp have discovered that hearing loss is linked to flaws in a specific gene.

28 Aug 2006

Remote Scottish isles may provide genetic clues to osteoporosis

A new study involving 2,000 people in Scotland will hopefully shed some light on why some people develop the bone-thinning condition osteoporosis.

28 Aug 2006

China comes up with first AIDS vaccine

According to Chinese authorities, preliminary tests of its first AIDS vaccine indicate it could protect people against the HIV virus.

20 Aug 2006

RNA gene found to be one of the fastest evolving regions in human genome

Since completing the sequencing of the chimpanzee genome last year, geneticists have spent many hours comparing human DNA sequences to those of our closest evolutionary relative, looking for the differences that distinguish the two species.

16 Aug 2006

Genotoxic bacteria in the digestive tract

Escherichia coli is a commensal bacterium, which lives peacefully in our digestive tract. However, certain strains are pathogenic and are frequently incriminated in a broad spectrum of infections, affecting both farmed animals and humans (diarrhoea, urinary tract infections, food poisoning, septicaemia, neonatal meningitis, etc.).

16 Aug 2006

Major new research grant to develop new technology for delivering cell-by-cell medical treatments

Scientists from the Universities of Dundee and St Andrews have won a major new research grant to develop a completely new technology for delivering cell-by-cell medical treatments.

15 Aug 2006

ZymoGenetics files lawsuit against Bristol-Myers Squibb

ZymoGenetic has announced that it has filed a lawsuit against Bristol-Myers Squibb for infringement of its patents related to fusion protein technology.

15 Aug 2006