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View Full Version : Ummmm - smells like a Lysine-Rich Mutant!


Zonulin
09-20-2008, 12:24 AM
Have you seen this? http://cahnrsnews.wsu.edu/reportertools/news/2008/diter-wheat-2008-04.html

PULLMAN, Wash. - Washington State University researcher Diter von Wettstein has been awarded a four-year, $837,000 grant from the National Institutes of Health to further his work on developing wheat varieties safe to eat for people who have Celiac disease.

Celiac disease is a genetic digestive disease and autoimmune disorder that damages the small intestine and interferes with absorption of nutrients from food. Symptoms are broad, ranging from cramps and diarrhea to malnutrition. The disease is triggered by consumption of gluten, a protein found in wheat, barley and rye.

Currently, the only treatment for people who have Celiac disease is to adopt a gluten-free diet, eliminating all wheat, rye and barley-based foods. Making such a diet more difficult, gluten is also used as a filler or binder in many additional food and non-food items, such as deli-meats, licorice, medicines, vitamins and even the adhesive on stamps and envelopes.

“Medical experts at the National Institutes of Health have declared urgency in dealing with the most food-sensitive intestinal condition in humans, and require faster and more decisive methods such as transgenic breeding,” said Von Wettstein.

Von Wettstein and his team have discovered a fully viable, lysine-rich mutant which lacks gliadin-type proteins in barley, showing the way to make Celiac-safe wheat. Lysine is an amino acid essential for an optimal diet, but typically deficient in wheat.

His team has partnered with Arcadia Biosciences, a biotech company based in Seattle to identify specific mutations in genes affecting the gliadin-type prolamins in gluten protein. Specifically, it is the gliadins that cannot be digested and eventually cross the intestinal wall, causing the damaging T-cell response to the intestinal lining. Fortunately, it has been shown that eliminating the gliadins does not compromise wheat’s baking qualities.
“Creating new cultivars of wheat, arguably the most important crop grown, having increased lysine and lacking gliadins will be of tremendous benefit not only for sufferers of Celiac disease, but for all consumers of wheat and wheat products,” said Von Wettstein.

Karen (sniff sniff...nybakt brød!)

annelb
09-20-2008, 05:50 PM
Karen, you are way too funny....again.

Suppose there is something other than gliadin that causes problems? This is from my notes from a lecture by M. Tichy at the last GIG meeting:
Gluten is made up of gliadins and glutenins. Although we think of the gliadin fraction as being the toxic part, there are many toxic regions of this very large molecule. “It is highly probably that glutenin proteins are toxic. Attempts to breed wheat with satisfactory baking properties tolerated by celiac patients will be very difficult.” Eur J Gastroenterol
Hepatol.2006 May: 18(5):438-91. Pubmed 16607142

If you want to read all my notes from this meeting, I have made them available at www.centralarkansasgig.org
Anne

ShayFL
09-20-2008, 06:28 PM
Im just not eatin Frankenfood. :)