science newsletter: Science News SciGuru.com

Δευτέρα 3 Μαρτίου 2014

Science News SciGuru.com

New kind of scan finds cancer's sleeper cells
Research reveals first glimpse of a brain circuit that helps experience to shape perception
Nanoparticles point the way to individualized antibiotic treatment regimes

New kind of scan finds cancer's sleeper cells

Posted: 03 Mar 2014 04:41 AM PST

In a study funded by Cancer Research UK, scientists at Imperial College London have shown that the non-invasive scan can detect dormant cancer cells in mice.

Most cancer treatments work by targeting fast-growing cells. Dormant cells can be resistant to therapy and are often responsible for cancers coming back.

Research reveals first glimpse of a brain circuit that helps experience to shape perception

Posted: 03 Mar 2014 04:31 AM PST

Odors have a way of connecting us with moments buried deep in our past. Maybe it is a whiff of your grandmother’s perfume that transports you back decades. With that single breath, you are suddenly in her living room, listening as the adults banter about politics. The experiences that we accumulate throughout life build expectations that are associated with different scents.

Nanoparticles point the way to individualized antibiotic treatment regimes

Posted: 03 Mar 2014 04:13 AM PST

Nanotechnology may provide the key to effective individual dosing with antibiotics according to a new study in the journal Nature Nanotechnology. The study used nanoparticles as surface-stress sensors in order to determine how much of a particular antibiotic target bacteria versus how much is decoyed by competing ligands such as serum proteins. This can vary between individuals, so this type of sensor could help in individualizing drug dosage.