Guest guest Posted July 25, 2005 Report Share Posted July 25, 2005 From Rich Van Konynenburg, Ph.D. <richvank@...>: I think I have just cracked the connection between secretin and mercury toxicity in autism. This may have some relevance to CFS as well, since mercury toxicity is a major factor in many cases of CFS. For background, some of you may know that some years back it was accidentally discovered by Virginia Beck, an autism mother, that an injection of the secretin produced by the Karolinska Institute in Sweden (used for a pancreatic function test) helped improve her son's autism symptoms. This led to quite a flurry in the autism community, and a synthetically made pure secretin was tested and failed to work. However, the secretin extracted from pigs did work, and Dr. Gregg proposed that it was because the pig version contained prosecretin, which would last longer in the body than actual secretin. Dr. Gregg began supplying dried pig duodenum powder to those who requested it, and many autism parents reported tha! t this did help. Now we see that there is overwhelming evidence that there is a connection between mercury and autism, particularly ethylmercury coming from the increased number of vaccinations that were required in the children as time went on. I've been struggling with the question of what could be the connection between mercury toxicity and the secretin effect. Now I think I have it. As you may know, the main toxic biochemical effect of mercury in the body is to bind to sulfur atoms that are found in the cysteine residues of enzymes and other proteins. When this occurs, it blocks the ability of these sulfur atoms to perform their normal functions. In many cases, they normally bind to each other within protein chains to form disulfide bonds, which give the protein molecules their characteristic structure. I just learned that the receptors for secretin contain six cysteine residues, that these residues n! ormally form three disulfide bonds, and that these bonds are critical to the operation of the secretin receptor. I therefore suggest that the connection between mercury toxicity and the secretin malfunction in autism is explained by mercury binding to cysteine residues in secretin receptors, thus distorting their structures and their function. I think this pulls these observations together nicely. I think this also explains why some children with autism who will eat only french fries before mercury detox treatment are reported to accept more normal diets afterward. French fries consist largely of starch that has been processed at a high temperature, breaking its chains and making it fairly easy to be further broken down to glucose, which can be absorbed. It thus does not require much digestion, and therefore a person without much secretin function, who would therefore not put out much pancreatic juice, would still be able to absorb glucose fairly readily from french fries. Protein-containing foods wou! ld be much more difficult to cope with, without secretin, and as Dr. Gregg has suggested, the stomach acid provoked by ingestion of proteins would not be neutralized well by pancreatic bicarbonate in the duodenum if the secretin function is impaired. Thus, the acid could attack the wall of the intestine, causing pain. This may be the main reason these kids stick to french fries (or grapes, which have a lot of glucose). Rich Van Konynenburg, Ph.D. --------------------------------------------- Send posts to CO-CURE@... Unsubscribe at http://www.co-cure.org/unsub.htm Too much mail? Try a digest version. See http://www.co-cure.org/digest.htm --------------------------------------------- Co-Cure's purpose is to provide information from across the spectrum of opinion concerning medical, research and political aspects of ME/CFS and/or FMS. We take no position on the validity of any specific scientific or political opinion expressed in Co-Cure posts, and we urge readers to research the various opinions available before assuming any one interpretation is definitive. The Co-Cure website <www.co-cure.org> has a link to our complete archive of posts as well as articles of central importance to the issues of our community. --------------------------------------------- Quote Link to comment Share on other sites More sharing options...
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