Connor77 said...
The genetics you're referring to about UC are dubious. There have been studies on twins who both have the same UC genes while only one develops UC, or neither, or both. There is no discernible pattern. There are also people who don't have these genetics at all who develop IBD. I think the genetic argument is weak, in that regard. You have whole families developing UC and Crohn's and it's assumed that it's because of genetics when really there is more likely an environmental or pathogenic explanation.
Studies on twins have shown that if one has IBD, the chances of the other developing IBD are higher than they are for other family members.
Connor77 said...
To the second part, the clinical cases are what I'm talking about. There are surely a lot of people in the world with UC, right now, who will never be diagnosed because they never have symptoms that disable their day to day functions. They have histological changes that don't affect them. Patients come forth when they are concerned, i.e. have clinical presentation, or there is an emergent situation.
The rate of CLINICAL cases has increased drastically in the past decades. The subclinical cases are irrelevant because we have no way to judge them.
How do you *know* that there are "surely a lot of people in the world with UC, right now, who will....?" What evidence do you have that there are "a lot" of people with UC so mild it never causes symptoms?