Lipid vesicles replace blood in new bacteria test


As schools around the U.S. start back up, so do trips to the doctor’s office. But is that raw sore throat due to bacteria, which can be fought off with antibiotics, or a virus? Getting a definitive diagnosis of bacterial infections like Strep throat can take days. Medical reseachers have now developed a new test that will provide results in just hours.

Blood tests: Sound waves separate biological nanoparticles for 'liquid biopsies'


A prototype device developed by an international team of engineers can sift exceedingly tiny particles called exosomes from blood samples without having to send samples off to a lab. The device, which combines acoustic cell-sorting and microfluidic technologies, could be a boon to both scientific research and medical applications.

High blood pressure reasons differ by gender in teens; young adults


Gender matters when it comes to what’s most likely to elevate blood pressure in young to middle-aged adults. The volume of blood pumped from the left ventricle during heartbeats, i.e., stroke volume, is the main determinant of blood pressure levels in women, while blood pressure in men is more likely to be determined by the amount of resistance in the body’s blood vessels.

Biomarkers in the blood prove strong role of food for type 2 diabetes


A pioneering method has demonstrated its potential in a large study, showing that metabolic fingerprints from blood samples could render important new knowledge on the connection between food and health. The study finds that diet is one of the strongest predictors of type 2 diabetes risk in older women.