ADVERTISEMENT
2 /3 FREE ARTICLES LEFT THIS MONTH Remaining
Chemistry matters. Join us to get the news you need.

If you have an ACS member number, please enter it here so we can link this account to your membership. (optional)

ACS values your privacy. By submitting your information, you are gaining access to C&EN and subscribing to our weekly newsletter. We use the information you provide to make your reading experience better, and we will never sell your data to third party members.

ENJOY UNLIMITED ACCES TO C&EN

Analytical Chemistry

DNA Array Profiles Combat Wound Bacteria

Quick identification of pathogens could improve treatment

by Jyllian Kemsley
June 30, 2014 | APPEARED IN VOLUME 92, ISSUE 26

A new microbial DNA detection array can find wound bacteria missed by standard culturing (J. Clin. Microbiol. 2014, DOI: 10.1128/jcm.00556-14). The results suggest that the approach could be used to quickly identify pathogens and appropriate treatments. The work was led by Nicholas A. Be and Crystal J. Jaing of Lawrence Livermore National Laboratory. They studied 124 samples taken from 61 wounds in 44 U.S. service members who were injured in combat. The array contains probes for 1,398 bacteria, but others may detect as many as 3,855 bacteria. Array assays can be completed in 24 hours. Using the array, Be, Jaing, and colleagues detected microorganisms in 51% of samples. Standard culturing turned up bacteria in only 35% of samples, likely because some bacteria do not grow well in culture. The researchers found that the presence of Pseudomonas species and Acinetobacter baumannii—and in particular an Acinetobacter plasmid implicated in drug resistance—was associated with failure of wounds to heal. In contrast, the presence of gastrointestinal bacteria species was associated with successful healing.

X

Article:

This article has been sent to the following recipient:

Leave A Comment

*Required to comment