According to this article on the Coates research there were 4 cases and 54 control GSDs. 8 cases and 15 control Boxers. http://www.pnas.org/content/early/2009/02/02/0812297106.full.pdf+html I would be interested in the source of the early test data that indicates that not all GSDs with DM possess the mutated SOD1 gene. Thanks, Melissa www.melanashepherds.com While there is another DNA Test, the SOD1 that has been developed by Dr Joan Coates for DM, that test was created through research on Boxers and Corgis! Corgi/Boxer DM is NOT the same disease as German Shepherd Dog DM! Only 4 German Shepherds spines were used in their research, to the hundred plus Corgi/Boxers!! Early test data on the German Shepherd Dog indicates that not all German Shepherd Dogs with Degenerative Myelopathy even possess the mutated SOD1 gene for which the other test is screening! > ============================================================================ POST is Copyrighted 2008. All material remains the property of the original author and of GSD Communication, Inc. NO REPRODUCTIONS or FORWARDS of any kind are permitted without prior permission of the original author AND of the Showgsd-l Management. ALL RIGHTS RESERVED. ALL PERSONS ARE ON NOTICE THAT THE FORWARDING, REPRODUCTION OR USE IN ANY MANNER OF ANY MATERIAL WHICH APPEARS ON SHOWGSD-L WITHOUT THE EXPRESS PERMISSION OF ALL PARTIES TO THE POST AND THE LIST MANAGEMENT IS EXPRESSLY FORBIDDEN, AND IS A VIOLATION OF LAW. VIOLATORS OF THIS PROHIBITION WILL BE PROSECUTED. For assistance, please contact the List Management at admin@xxxxxxxxxxxx VISIT OUR WEBSITE - http://showgsd.org NATIONAL BLOG - http://gsdnational.blogspot.com/ ============================================================================