Posted on 08/25/2015 7:41:16 PM PDT by CutePuppy
Leaves of the European chestnut (Castanea sativa) contain ingredients with the power to block the virulence and pathogenesis of Staphylococcus aureus without detectable resistance, a new study has found.
Rather than killing Staphylococcus aureus, the chestnut leaf extract rich in oleanene and ursene derivatives (pentacyclic triterpenes) works by taking away bacteria's weapons, essentially shutting off the ability of the bacteria to create toxins that cause tissue damage.
"We have demonstrated in the lab that our extract disarms even the hyper-virulent MRSA (methicillin-resistant Staphylococcus aureus) strains capable of causing serious infections in healthy athletes," said Dr Cassandra Quave of Emory University, lead author on the study, published in the journal PLoS ONE.
"At the same time, the extract doesn't disturb the normal, healthy bacteria on human skin. It's all about restoring balance."
The scientists steeped chestnut leaves in solvents to extract their chemical ingredients.
They produced an extract of 94 chemicals, of which ursene and oleanene based compounds are the most active.
Tests showed that the extract inhibits the ability of Staphylococcus aureus to communicate with one another, a process known as quorum sensing. MRSA uses this quorum-sensing signaling system to manufacture toxins and ramp up its virulence. ..... < snip >
..... A single dose of the extract, at 50 micrograms, cleared up MRSA skin lesions in lab mice, stopping tissue damage and red blood cell damage.
The extract does not lose activity, or become resistant, even after two weeks of repeated exposure.
And tests on human skin cells in a lab dish showed that the botanical extract does not harm the skin cells, or the normal skin microflora. .....
(Excerpt) Read more at sci-news.com ...
Ok, mix that with some honey, onion extract .... sounds like the old alchemist may have been ahead of their times.
Silver Sol works too.
Excellent. I figured it was only a matter of time.
Sure makes you think about clearing the rain forest and things like that.
Chestnuts were widespread here. Then the blight killed most of them.
[[Rather than killing Staphylococcus aureus, the chestnut leaf extract rich in oleanene and ursene derivatives (pentacyclic triterpenes) works by taking away bacteria’s weapons, essentially shutting off the ability of the bacteria to create toxins that cause tissue damage.]]
Ok fine- but now we’ve got staph lying dormant in our bodies? What happens when the extract is stopped?
if you’re talking about colloidal silver- watch out- it can and has turned people’s skin a real ugly blue- permanetly
Thanks! Nice find.
That would be the American Chestnut. The European Chestnut is another species.
I haven’t heard of this. Here’s something else that might be of interest-
http://www.coppertouchsurfaces.org/antimicrobial/
bookmark
Silver Sol is a nano silver. We used the gel on my mother when she had an acute case of MRSA. The doctors were astonished it healed. We used the gel liberally, but it got the job done. She also was on antibiotics.
http://www.guardian-silver.com/silver-sol-uses/
Great for more superficial stuff but doesn’t work on deep tissue infections like I’ve had. No topical formulation does. Silver taken orally is worthless.
Ping! (MRSA)
[Great for more superficial stuff but doesnt work on deep tissue infections like Ive had.]
The MRSA infection was to the bone.
We had a lot of people praying for her.
Which is probably the correct explanation for the recovery.
Later
thanks for the ping. bttt.
The presumption is that the biochemical change of bacteria is permanent or long-lasting enough, when it no longer poses a serious threat to a healthy immune system. In which case the "dormant" would not really be the proper adjective anymore. There are plenty of harmless and even useful bacteria and viruses in human bodies.
[[The extract does not lose activity, or become resistant, even after two weeks of repeated exposure.]]
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