I don't necessarily look at it as being survival of the fittest as such but rather just survival, IYKWIM.
When my daughter was the only one diagnosed in my immediate family I thought long and hard about why this happened to her. I settled on it being a combination of genetics, environment and a trigger and I thought that perhaps they played a relatively equal role. Then my son was diagnosed and my thinking changed, it was and is difficult for me not to think that genetics plays a far greater role than I previously thought, not simply because they both have Crohn's but also the fact that given Crohn's can have many and varied presentations theirs mirrors each other. Perhaps what cemented my thinking somewhat was a Crohn's specialist saying to me that in all his years of treating IBD he only had one other patient that's disease exactly followed the presentation and outcomes in another family member, that being a mother and her two daughters.
I can't answer as to why some children have the disease and the parent's don't. I could toss up some theories...
1. Is it that the fault lies in a recessive gene and it must be present from both parents for it to become activated?
2. Is it linked into a circle of diseases? e.g. asthma, eczema, hay fever etc. A parent can present with asthma but the child may have eczema.
3. Related to the above thought. What if a parent having a bowel disease like diverticular disease or a family history of bowel cancer predisposes a child to developing something like IBD?
As I said I don't know the answer, I wish I did and then I could stop thinking, thinking, thinking. :lol:
I have agonised over the why my children have this disease and I have analysed their environment to the nth degree. So many similarities and yet so any differences. Two of the main ones that pop up on this forum from time are breastfeeding and antibiotics. For breastfeeding the suggestion is that those babies that are breastfed have a lesser risk of developing this disease. I breastfed both of my children and for quite considerable lengths of time. As far as antibiotics go, neither had antibiotics in their entire lives until after their diagnosis.
I know you have another poll thread on diet but I will include my thoughts here.
I do believe that diet plays a role in maintaining remission and in symptom control when flaring, I don't believe it causes Crohn's.
I don't think diet plays as big a role for some people as it does for others, much the same as some people respond wonderfully well to medication but for others they are a failure.
My own daughter follows a raw vegan diet. She was in remission when she commenced this diet and remains in remission now, she still takes 50mg of Imuran daily. She says she feels well and energised on the diet and she does look well. If she was able to maintain a solid remission with diet alone for years and years and years I would be one very happy Mum!
Dusty. xxx