Hi engelbrecht! I am ladybrannon and am thrilled to meet you!
Yes, I did mention environmental factors being possible "triggers" along with having a genetic predisposition.
It was interesting that yesterday, I was given permission to attend a resident's seminar on lupus in children and adolescents at duke university. Which, by the way, was very neat. The speaker was Dr. Christy i. Sandborg associate professor of pediatarics director, division of rheumatology stanford university school of medicine. Anyhoo, that was one of the topics she addressed.
I have heard all kinds of things. Most researchers/doctors/etc admit that there are a lot of theories surrounding this topic and no absolutes. Here is a short list of some things I have heard:
1) a virus- some specific ones mentioned are ebv and cmv.
2) excessive sunlight exposure
3) an allergen that harshly effects the person
4) some type of chemical in the person's environment (which I think you were alluding to in your post, correct?)
none of this is absolute...In anyway! The reality is that noone knows. There have been about 6-7 genes identified that seem to be "on" or "off" in lupus patients. The last I heard, a lot of well known researchers are hypothesizing that there are about 12 genes that play significant roles in lupus.
I hope this helps answer your question about "triggers" in some small way!
Hugs,
ladybrannon