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“Cockroach brains could be lifesavers”

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“Cockroach brains could be lifesavers” Powered By Docstoc
					Glenn Johnson
Montreal Gazette
The Issue
• Bacterial resistance to antibiotics is increasing
• Overuse and misuse of antibiotics are leading factors of
  increasing resistance
• Today up to 70% of bacteria that cause hospital
  infections are resistant to at least one type of antibiotic
• It is estimated that in 15 years
  antibiotics will no longer be
  effective
The Solution
•Recent research at the University of Nottingham shows that
cockroaches may serve as a new source of antibiotic
•Simon Lee and the other researchers at the university
wanted to discover how insects are able to thrive in the most
unsanitary conditions
•When exposed to MRSA, E. coli, and other antibiotic-
resistant bacteria, nervous tissue from cockroaches
effectively killed more than 90% of the resistant strains of
bacteria
•Nine different molecules were isolated which all appeared
to be effective against a specific bacteria
•None of these molecules had any effect when exposed to
human tissue so it is hoped that drugs produced from
cockroach brains will have no negative side effects
•Antibiotic compounds have also been discovered in locusts
and the hope is that more species of insects will contain
similar compounds that may one day serve as antibiotic
drugs

				
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posted:8/12/2012
language:English
pages:3