Unfortunately, there is no real “gold standard” for comparing normal or expected levels of 8-OHdG. The latter is a rather small molecule and different antibodies may react differently to it; thus, it is possible for one kit to give different levels than another kit. That is not at all to say that this kit is not reliable. You can, of course, have a negative control to determine the extent of damage (i.e. negative vs. positive control or “damaged “samples) or you can compare past and future samples if using this same kit, but since there is no real established normal level for this marker, it is hard to compare your data to published data that used other kits.

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