As for multiple sclerosis, an article in the journal Nature dated May 2010 showed that this autoimmune disease is not caused by a genetic variation but the course and the treatability are considerably influenced by genetic dispositions. This research was based on analyzing three monovular pairs of twins, of which one twin has contracted multiple sclerosis whereas the other one has not.
In an article published in Nature on May 2010, it was found that multiple sclerosis is not caused by a specific genetic variation but its progression and treatability are influenced by genetic factors. This research involved examining three sets of monozygotic twins; one twin had developed multiple sclerosis while the other did not.