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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).

Structural alterations in breast stromal and epithelial DNA

Researchers have uncovered a pattern of DNA damage in connective tissues in the human breast that could shed light on the early stages of breast cancer.

3 Aug 2006

FDA develops cost-effective way to identify bioterror agents used in hoax incidents

Researchers at the Food and Drug Administration (FDA) National Center for Toxicological Research (NCTR) are developing a quick, cost-effective way to screen for and identify bioterror agents and other substances used in hoax incidents.

3 Aug 2006

Fatty acids found in dairy products shown to treat diabetes

Fatty acids commonly found in dairy products have successfully treated diabetes in mice, according to a researcher at Penn State.

3 Aug 2006

Different genes may be responsible for causing autism in boys and girls

In the on-going search to find the cause of Autistic Spectrum Disorders, the latest research says different genes may be responsible for causing autism in boys than in girls, and the discovery may help explain why the condition is more common in boys.

3 Aug 2006

Variation in the CHEK2 gene may triple a woman's risk of developing breast cancer

Study shows that women in the general population who carry a specific CHEK2 mutation are three times as likely as women without the mutation to develop breast cancer.

2 Aug 2006

Different genes may be responsible for causing autism in boys than in girls

Like detectives trying to solve a murder case, researchers searching for the biological cause of autism have come up with some surprising suspects.

2 Aug 2006

Genetic mutations may be responsible for schizophrenia

The higher risk of schizophrenia among offspring of expectant mothers living through famine could help us understand the genetic basis for that debilitating mental disorder.

2 Aug 2006

Uterine cancer may be clue to Lynch syndrome

A new study suggests that women with endometrial cancer should be screened for inherited mutations that could lead to a high risk of several other cancers.

2 Aug 2006

Mice more complicated than humans when it comes to telomeres

In terms of their telomeres, mice are more complicated than humans. That's the finding from a recent Rockefeller University study.

2 Aug 2006

Construction of proteins with new mechanical properties through recombination of protein fragments

So that we can move, and so that our heart beats, we need proteins with special mechanical properties, "molecular springs", which give our tissues the necessary strength and take care of elasticity and tensibility.

1 Aug 2006

New group B strep test for newborn babies approved

The Food and Drug Administration on Tuesday approved a new test studied at the University of Florida that could lead to better screening for the most common cause of infection in newborn babies.

27 Jul 2006

Genes may be responsible for obsessive-compulsive disorder

Obsessive-compulsive disorder tends to run in families, causing members of several generations to experience severe anxiety and disturbing thoughts that they ease by repeating certain behaviors.

26 Jul 2006

New insights into how cells repair damaged DNA

Cancer researchers have discovered that a recently identified protein critical for repairing damaged genes uses an unusual mechanism to keep its repairs accurate.

26 Jul 2006

Using gamma radiation preserves T-cell responses in bacterial vaccine

Using gamma radiation to inactivate bacteria for the preparation of vaccines, instead of traditional heat or chemical methods of inactivation, appears to create a vaccine that is more effective than so-called "killed" vaccines against disease, and has the added advantage of a longer storage life than "live" vaccines.

26 Jul 2006

Heat sensitivity may make testicular cancer cells more susceptible to standard treatments and die off more readily

Experts at Johns Hopkins have linked scientific evidence spanning more than 30 years to suggest an explanation for why testicular cancer patients like seven-time Tour de France winner Lance Armstrong survive far better than patients with other advanced cancers.

26 Jul 2006