High Dose exposure ot systemic insecticides and BSE

[Kathy]

I hope you'll take the time to go to the link and read the medical hypothesis relating to insecticide use in the UK and BSE. (Below is the abstract and link):
http://www.purdeyenvironment.com/Med%20Hyp%202nd.htm

Medical Hypotheses (1998) 50, 91-111 c.Harcourt Brace & Co. Ltd 1998

High-dose exposure to systemic phosmet insecticide modifies the phosphatidylinositol anchor on the prion protein: the origins of new variant transmissible spongiform encephalopathies?

M.PURDEY

High Barn Farm, Elworthy, Taunton, Somerset, TA43PX, UK

Abstract - Compulsory exposure of the UK bovine to exclusively high biannual doses of a, 'systemic' pour-on formulation of an organo-phthalimido-phosphorus warblecide, phosmet, during the 1980s (combined with exposure to the lipid-bound residues of 'bioconcentrated' phosmet recycled back via the intensive feeding of meat and bone meal), initiated the,'new strain' modification of the CNS prion protein (PrP) causing the UK's bovine spongiform encephalopathy (BSE) epidemic. A lipophilic solution of phosmet was poured along the bovine's spinal column, whence it penetrated and concentrated in phospholipids of the CNS membranes, covalently modifying endogenous phosphorylation sites on phosphatidylinositols (PIs) etc., forming a 'toxic membrane bank' of abnormally modified lipids that 'infect' any membrane proteins (such as PrP) that are programmed to conjugate onto them for anchorage to the membrane. Thus, phosmet invokes a primary covalent modification on PrP's PI anchor which, in turn, invokes an overall diverse disturbance upon CNS phosphoinositide second messenger feed back cycle, calcium homeostasis and essential free radicals; thus initiating a self-perpetuating cascade of abnormally phosphorylated PI-PrP that invokes a secondary electrostatic and allosteric disturbance on the main body of PrP impairing tertiary folding. Chaperone stress proteins conjugate onto misfolded PrP blocking its sites of proteolytic cleavage. Fresh epidemiological evidence is presented and experimental evidence referenced that adds support to a multifactorial hypothesis which proposes that BSE is a hitherto unrecognized and previously unmanifested class of subtle chronic phosmet-induced delayed neuro-excitotoxicity in the susceptible bovine.

[Kathy]

I just thought I'd add this:

Since 1998 when this paper was written, Mark has progressed with his thinking and in 2003 added more published studies to his long list of peer-reviewed scientific papers. They are available at www.markpurdey.com or www.purdeyenvironment.com.

Does an Infrasonic acoustic shock wave resonance of the manganese 3+ loaded/copper depleted prion protein initiate the pathogenesis of TSE?

Radioactive metals, Sonic shockbursts and ferrimagneto-prion theory on the origins of TSEs.

The Environmental Origins of TSEs: the ferrimagneto-prion theory. Also genetic link found for pesticides, ADHD, Gulf War Syndrom. by caponline@videotron.ca.


Happy reading. Meow!!!!!!!!!!

[Maple Leaf Angus]

And here we all thought Canucks vs. Yankees could get antagonistic!