Washington, Mar 25 : A non-invasive brain scanning technique may trace a biomarker for Parkinson''s disease that would let physicians screen for or track the progression of the neurodegenerative disorder, according to a University of Illinois at Chicago neuroscientist.

The tool may also help advance the development of new drugs or neuroprotective agents to treat or ward off Parkinson''s.

Washington, Mar 25: A team of scientists has developed a test that could help doctors precisely identify which breast cancer patients should receive aggressive therapy, thereby sparing many women at low risk for metastatic disease from undergoing unnecessary and potentially dangerous treatment.

Researchers developed the test based on an earlier finding that the co-mingling of three cell types can predict whether localized breast cancer will metastasize, or spread throughout the body.

Washington, Mar 25: Scientists at University at Buffalo (UB) have developed a nanoparticle that can silence a gene that triggers drug addiction.

Boffins in UB''s Institute for Lasers, Photonics and Biophotonics and UB''s Department of Medicine have developed a stable nanoparticle that delivers short RNA molecules in the brain to "silence" or turn off a gene that plays a critical role in many kinds of drug addiction.

Washington, Mar 25: Aids drug ABC (Abacavir) can reduce proliferation and induce differentiation of human cancer cells, called medulloblastoma cells, by the downregulation of telomerase activity, according to new study.

The finding can make ABC an effective therapeutic strategy for the treatment of the highly malignant primary brain tumours.

Washington, Mar 25: Researchers have found a brain region which predicts choices before we even know what they are.

The finding may explain why people re-evaluate options after making decisions.

Researchers in the March 25 issue of The Journal of Neuroscience have reported that the activity in one brain structure can predict people''s preferences.