Also, the chemical forms of selenium found in food are varied (see Sources) and may have very different biological and toxicological effects (70, 71)
In the last 30 years, IARC evaluated the cancer-developing potential of over 900 substances and put them in one of the groups shown below: Group 1 : Carcinogenic to humans (107 factors) Group 2A : Probably carcinogenic to humans (58 factors) Group 2B : Possibly carcinogenic to humans (249 factors) Group 3 : Unclassifiable as to carcinogenicity in humans (512 factors) Group 4 : Probably not carcinogenic to humans (1 factor) In a not surprising way, if we remember the difficulty of testing these carcinogen candidates, you will notice that most substances are classified under risk groups of Group 2B or Group 3
[5] For the diagnosis of G6PD deficiency, medical practitioners shall refer to the symptoms, signs, and family histories of the patient, as well as his/her laboratory examination results, such as liver function assay, LDH, blood count, Combs tests, gene analysis, and G6PD activity testing
Curcumin and antioxidant gene regulation: a review