by Mike Whiter, and Ashleigh Carter
MRSA is one of the most common antibiotic-resistant hospital superbugs that was associated with more than 19,000 deaths in 2017 alone. Bacteria can be classified as “gram positive” or “gram negative,”depending on the nature of their membrane(s), and MRSA is a gram positive bacteria. Scientists tested CBG on MRSA and it successfully killed the bug in both a lab setting and in mice.
However, the study found gram negative superbugs were much harder to treat, and CBG was initially found to be less effective against these bacteria. CBG was used in conjunction with small amounts of polymyxin B, an antibiotic that works against gram negative bacteria, and the cannabinoid was able to kill the drug-resistant bacteria.
“These are likely made as a defence mechanism to protect the plant from bacterial and fungal infections, but to date have not been very useful for human infections as they really only work outside the body,” Mark Blasovich, researcher at University of Queensland, told the Guardian. “That’s what makes this new report potentially exciting; evidence that cannabigerol is able to treat a systemic infection in mice.”
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