Engineers at the University of California San Diego have developed a desktop diagnosis tool that detects the presence of harmful bacteria in a blood sample in a matter of hours instead of days. The breakthrough was made possible ...
Analytical Chemistry
Feb 8, 2017
0
863
Day in and day out, in our bodies, the DNA in cells is damaged for a variety of reasons, and thus intercellular DNA-repair systems are fundamental to the maintenance of life. Now scientists from the UNC School of Medicine ...
Cell & Microbiology
Feb 7, 2017
0
1771
Eight hundred years ago, in a hardscrabble farming community on the outskirts of what was once one of the fabled cities of the ancient world, Troy, a 30-year-old woman was laid to rest in a stone-lined grave.
Archaeology
Jan 10, 2017
0
471
A key biochemical enables bacteria to repair otherwise fatal damage to their DNA, including that caused by antibiotics. That is the finding of a study led by researchers at NYU Langone Medical Center and published May 20 ...
Cell & Microbiology
May 19, 2016
0
54
Tardigrades, also known as moss piglets or water bears, are eight-legged microscopic animals that have long fascinated scientists for their ability to survive extremes of temperature, pressure, lack of oxygen, and even radiation ...
Biotechnology
Mar 28, 2016
7
208
Genetically engineering any organism requires first getting its cells to take in foreign DNA. To do this, scientists often perform a process called electroporation, in which they expose cells to an electric field.
Biotechnology
Feb 19, 2016
0
1430
Biophysicists have discovered why the bacteria that cause tuberculosis (TB) are naturally somewhat resistant to antibiotics known as fluoroquinolones. Their findings, based on mapping the detailed three-dimensional structure ...
Biochemistry
Jan 18, 2016
3
769
When bacteria are exposed to antibiotics, they alter the expression of a number of genes within their genome. One of these responses, known as the SOS response, results in an increase in the rate of DNA mutation. Given that ...
Cell & Microbiology
Oct 7, 2015
0
52
The human immune system responds to DNA from pathogens by triggering the production of a defense molecule known as interferon. A research team led by A*STAR scientists has now pinpointed an enzyme integral to this process, ...
Cell & Microbiology
Sep 11, 2015
0
155
Scientists at Johns Hopkins report they have deciphered the structure and unusual shape of a bacterial protein that prepares segments of DNA for the insertion of so-called jumping genes. The clamshell shape, they say, has ...
Cell & Microbiology
Aug 19, 2015
0
433
