DNA News and Research

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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).

Insulin-like growth factor found to have new role in development of brain's smell center

A human hormone known to stimulate the growth of cells throughout the body has a new role - helping to set up the proper nerve connections in the odor center of the brain, according to University of California, Berkeley, scientists.

28 Mar 2008

Beetle genome opens the door to developmental research

The whole DNA sequence of the red flour beetle, familiar to many as an unwelcome visitor to the kitchen flour jar, has been published in Nature .

28 Mar 2008

Astrotechnology brings nanoparticle probes into sharper focus

While pondering the challenges of distinguishing one nanosize probe image from another in a mass of hundreds or thousands of nanoprobes, two investigators at Emory University and the Georgia Institute of Technology made an interesting observation. The tiny, clustered dots of light looked a lot like a starry sky on a clear night.

27 Mar 2008

Study examines association between type of genetic characteristics and cancer

Persons with a certain type of homozygosity (having two identical copies of the same gene, one inherited from each parent), may have a greater predisposition to cancer, according to a study in the March 26 issue of JAMA.

26 Mar 2008

First comprehensive database of microorganisms known to live in the mouth

Scientists know more today than ever before about the microbes that inhabit our mouths.

26 Mar 2008

New method for rapid screening large numbers of antigens

A team of Washington State University scientists has devised a method that could lead to the development of vaccines against some of the most troubling infectious diseases we face diseases that have so far been difficult or impossible to vaccinate against.

26 Mar 2008

A new form of inherited risk of cancer found

Like the subtext of a novel, the human genome sequence harbors more information than appears just in its "letters" of A, C, T and G. Since DNA is a data-packed molecule passed from generation to generation, comparing genome sequences among individuals also holds clues to ancestry.

26 Mar 2008

Red wine antioxidant resveratrol kills cancer

Rochester researchers showed for the first time that a natural antioxidant found in grape skins and red wine can help destroy pancreatic cancer cells by reaching to the cell's core energy source, or mitochondria, and crippling its function.

26 Mar 2008

A biosensing nanodevice to revolutionize health screenings

One day soon a biosensing nanodevice developed by Arizona State University researcher Wayne Frasch may eliminate long lines at airport security checkpoints and revolutionize health screenings for diseases like anthrax, cancer and antibiotic resistant Staphylococcus aureus (MRSA).

26 Mar 2008

Researchers make colorectal screening a little easier

Colon cancer screening is a tough sell. It's icky, uncomfortable and the thought of a colonoscopy, especially the prep, can be intimidating, to say the least.

25 Mar 2008

BARACLUDE data show low resistance over 5 years in nucleoside-naive hepatitis B patients

New BARACLUDE (entecavir) data presented demonstrated a continued low incidence of resistance in nucleoside-naïve patients through five years of treatment. In the nucleoside-naïve chronic hepatitis B patients analyzed, no additional patient developed resistance in the fifth year (n=108).

25 Mar 2008

New genetic clue to Parkinson's disease

Researchers at Rhode Island Hospital and The Warren Alpert Medical School of Brown University have discovered a gene that could hold the key to developing new treatments for Parkinson's disease – a progressive and often debilitating movement disorder that affects as many as one million Americans.

24 Mar 2008

New insight into radiation damage to DNA

A new technique for assessing the damage radiation causes to DNA indicates that the spatial arrangement of damaged sites, or lesions, is more important than the number of lesions in determining the severity of the damage.

24 Mar 2008

Jumping gene may contribute to Cockayne syndrome

Scientists have identified a fusion protein that may contribute to Cockayne syndrome, a devastating disease characterized by developmental defects, neurodegeneration, severe wasting, and premature aging.

24 Mar 2008

Low levels of dietary folate linked to sperm abnormalities

Healthy men who report lower levels of the nutrient folate in their diets have higher rates of chromosomal abnormalities in their sperm, according to a new study by researchers at the University of California, Berkeley, and the Lawrence Berkeley National Laboratory.

20 Mar 2008

Shorter radiotherapy courses can benefit breast cancer patients

A LOWER total dose of radiotherapy, delivered in fewer, larger treatments has been shown to be as effective as the international standard of a higher total dose delivered over a longer time to treat women with early breast cancer according to new research published in the Lancetand Lancet Oncology.

20 Mar 2008