Frequently Asked Questions
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Are XenoTech's human-derived products biohazardous?
Results of serum tests for known pathogens (HIV, Hepatitis B and C, CMV) are included with your order. XenoTech does not sell subcellular fractions from donors known to harbor infectious diseases, such as HIV, hepatitis or syphilis. However, we recommend that all human products be handled as potential biohazards and universal precautions be followed.
Is it possible to get donor information for human-derived products?
Certain demographics are available on all human donors, including sex, age, race, limited medical history (major illnesses, recent medications, etc.) and limited social history (smoking, alcohol, drug habits, etc.). Information that may reveal the identity of the donor is not available.
Can XenoTech ship products overseas?
Yes, XenoTech ships products all over the world. We currently have distributors throughout Europe and Japan. For more information, check the Distributor section of this website.
Why are the activities in your average pool of human liver microsomes generally higher than another commercially-available "high activity" pool?
We are confident that the activities in our pooled human liver microsomes reflect a true average range--not high activities.
Our acceptance criteria are calculated from our historical data, which represents the characterization of over 400 individual human livers to date. We select each of the 50 donors that comprise this pool and combine them to ensure that average activities are met for each of the enzymes, and that each donor is significantly represented in the pool.
All of our enzymatic assays are performed using LC/MS/MS validated methods, and all data are reviewed by our Quality Control staff prior to the product's release, so we are confident that the product you receive reflects average human activities.