The Bt toxin produced in GMO crops is not the same as natural Bt toxin. The process of genetic engineering changes it (as confirmed by the pro-GMO website GMO Safety). Additionally, there is no testing performed on the Bt toxin extracted from GMO plants (which would be the most effective scientific method), as it is apparently too expensive to isolate. Instead, testing is done on Bt toxin isolated from E. coli bacteria (as is the norm for GM risk assessments). The protein would be different from the one that is present in the actual GMO crop. Hope this helps and isn’t too techy! 🙂
Thus, topical calcipotriene may be used as an alternative or adjunct to topical corticosteroid therapy. It is applied twice daily when used as monotherapy. No controlled trials guide how best to use topical corticosteroids in conjunction with calcipotriene. Once daily use of each may be adequate. Acidic products can inactivate topical calcipotriene, and some topical corticosteroids may be acidic. A reasonable approach to combination therapy is to have patients apply topical calcipotriene and topical corticosteroids each once daily at different times of day.