Dinosaurs had appetite for grass
Butterfly wings work like LEDs
Skull fragments may be Beethoven's
Is Tamiflu safe for children?
Aids may help spread of bird flu
Gene therapy may help cure pancreatic cancer
Malaria may raise HIV risk to fetuses
Vietnam finds new strains of bird flu virus

The farmers who brought agriculture to central Europe about 7,500 years ago did not contribute heavily to the genetic makeup of modern Europeans, according to the first detailed analysis of ancient DNA extracted from skeletons of early European farmers.

Initial results from the OpenMind study, the largest behavioural study to look at both patients' and physicians' perceptions of HIV care in treatment-experienced patients, were revealed today at EACS. The study's findings are anticipated to help physicians implement improved care to HIV patients and help pave the way for better acceptance and integration of other new innovative drugs such as monoclonal antibodies that are increasingly being developed for the management of HIV and other diseases.

By using MRI to detect magnetic probes of tiny iron oxide particles, an international research team for the first time has successfully tracked immune-stimulating cells implanted into cancer patients for treatment purposes.

Duke University biomedical engineers have devised a potentially patentable method to arrest toxic leakages of genetically engineered viruses that have plagued attempts to use gene therapy against cancerous tumors. The problem has been that viruses carrying anti-tumor genes have tended to leak from tumors, proving toxic to other body tissues.