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The Water Cooler
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Natural way to kill poison ivy?
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<blockquote data-quote="cscokd" data-source="post: 2508318" data-attributes="member: 5609"><p>Weird thing about poison ivy/oak/sumac is it's not the Urushiol directly causing a rash, but your body's immune system attacking itself. And I can vouch for the reaction growing in severity with each exposure.</p><p></p><p><a href="http://en.wikipedia.org/wiki/Urushiol-induced_contact_dermatitis" target="_blank">http://en.wikipedia.org/wiki/Urushiol-induced_contact_dermatitis</a></p><p></p><p>At least 25% of people have very strong responses resulting in severe symptoms. Since the skin reaction is an allergic one, people may develop progressively stronger reactions after repeated exposures.</p><p></p><p>The toxic effects of urushiol are indirect, mediated by an induced immune response. Urushiol acts as a hapten, chemically reacting with, binding to, and changing the shape of integral membrane proteins on exposed skin cells. Affected proteins interfere with the immune system's ability to recognize these cells as normal parts of the body, causing a T-cell-mediated immune response.[4] This immune response is directed towards the complex of urushiol derivatives (namely, pentadecacatechol) bound in the skin proteins, attacking the cells as if they were foreign bodies.</p></blockquote><p></p>
[QUOTE="cscokd, post: 2508318, member: 5609"] Weird thing about poison ivy/oak/sumac is it's not the Urushiol directly causing a rash, but your body's immune system attacking itself. And I can vouch for the reaction growing in severity with each exposure. [url]http://en.wikipedia.org/wiki/Urushiol-induced_contact_dermatitis[/url] At least 25% of people have very strong responses resulting in severe symptoms. Since the skin reaction is an allergic one, people may develop progressively stronger reactions after repeated exposures. The toxic effects of urushiol are indirect, mediated by an induced immune response. Urushiol acts as a hapten, chemically reacting with, binding to, and changing the shape of integral membrane proteins on exposed skin cells. Affected proteins interfere with the immune system's ability to recognize these cells as normal parts of the body, causing a T-cell-mediated immune response.[4] This immune response is directed towards the complex of urushiol derivatives (namely, pentadecacatechol) bound in the skin proteins, attacking the cells as if they were foreign bodies. [/QUOTE]
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