Gene to Block TNF Linked to Multiple Sclerosis but not Rheumatoid Arthritis Kurt Ullman | January 16, 2013 Kurt Ullman is a freelance writer based in Indiana. Reference 1. Gregory AP, Dendrou CA, Attfield KE, et al. TNF receptor 1 genetic risk mirrors outcome of anti-TNF therapy in multiple sclerosis. Nature. 2012;488:508-511. ad goes here:advert-1ADVERTISEMENT Page: 1 2 | Single Page Share: