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Fewer than half the patients previously diagnosed with bipolar disorder received a diagnosis of bipolar disorder based on a comprehensive, psychiatric diagnostic interview -- the Structured Clinical Interview for DSM-IV.

Recent whole-genome scans have identified novel risk genes for many common diseases, challenging researchers to determine how these genes contribute to disease. A new study provides molecular insights into a breast cancer risk factor.

A specially coated metal tube, no larger than a cigarette, could be the key to developing an artificial pancreas to help millions of people with diabetes avoid insulin injections, according to an article in Chemical & Engineering News. The so-called "bioartificial pancreas" also could help keep blood sugar closer to normal levels, and perhaps reduce the risk of diabetic complications, which include blindness, kidney failure, and premature death, the article suggests.

Breast cancer patients who have a prior history of mood and anxiety disorders are at a much higher risk of experiencing post-traumatic stress disorder following their diagnosis, new research suggests. A study of 74 breast cancer patients at the Ohio State University Medical Center found that 16 percent of them suffered from PTSD 18 months after diagnosis.

Researchers report that when ductal carcinoma in situ, or DCIS, spreads beyond the breast's milk ducts, the cause lies not in the tumor cells themselves but in a group of abnormal surrounding cells that cause the milk ducts' walls to deteriorate. The discovery may lead to screening tests to determine whether the disease is likely to spread beyond the ducts, based on genetic abnormalities in cells in the ducts' lining.

People with shorter arms and legs may be at a higher risk for developing dementia later in life compared to people with longer arms and legs, according to a new studyin the medical journal of the American Academy of Neurology. Researchers say the association between short limbs and dementia risk may be due to poor nutrition in early life, which can affect limb growth.

Long-term use of ibuprofen and other drugs commonly used for aches and pains was associated with a lower risk of Alzheimer's disease, according to a new study. Previous studies have shown conflicting results, but this is the longest study of its kind.

Prolonged and exclusive nursing improves children's cognitive development. The largest randomized study of breastfeeding ever conducted reports that breastfeeding raises children's IQs, and improves their academic performance, scientists say.

Although most adopted American teens are psychologically healthy, adoptees appear to be at greater risk for emotional and behavioral problems than non-adoptees, according to a new report in the Archives of Pediatrics and Adolescent Medicine. They are also more likely to have contact with a mental health professional.

After launching a communications revolution, cell phones are talking up a potentially life-saving new role in telemedicine -- the use of telecommunications technology to provide medical diagnosis and patient care when doctors and patients are hundreds or thousands of miles apart. Researchers in the United States and Brazil describe development of a simple, inexpensive system that uses cell phone cameras to collect medical data from patients in developing countries for medical analysis by specialists located off-site.