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.