Nicotine replacement therapy, such as pills, gum and patches, can make the road to quitting smoking a little less rocky, but these aren't always effective and a tremendous amount of discipline still plays the major role. A team of US-based researchers has now uncovered an enzyme found in nature they say could greatly improve on the effectiveness of smoking cessation aids, by devouring nicotine in smokers before it can deliver its "reward" to the brain.
We’ve already heard about drones being used to deliver pharmaceuticals to patients in remote locations, but scientists from Johns Hopkins University and Uganda’s Makerere University are now looking at the other end of the picture – using them to deliver remotely-located patients’ blood samples to labs in larger centers. According to a proof-of-concept study conducted by the researchers, the little unmanned aircraft should be able to do the job just fine.
In order to monitor their blood glucose levels, diabetics typically have
to perform painful and inconvenient finger-prick blood tests – in some
cases, several times a day. Using an implantable glucose-monitoring sensor
is one alternative, although it must be surgically installed and
subsequently removed for replacement. Another option may be on the way,
however, in the form of a device that simply shines a laser on the
A new test developed by the Howard Hughes Medical Institute (HHMI) can test for both past and current infections by analyzing a single drop of patient blood. The researchers consider the method superior to existing techniques, which only search for a single virus at a time.
As it stands, there's not a whole lot we know about pain. Where a tissue or blood sample can be drawn and studied, our nervous system comprising different kinds of cells running signals through complex piping around the body presents a difficult task for scientific research. But a new study details a technique that turns blood cells into different nerve cells, promising to improve our understanding of why things itch or burn. By extension, it is hoped that it could lead to new forms of pain relief that do away with unwanted side effects such as sleepiness or loss of concentration.