If you look on fertility websites, you’ll often find people discussing reproductive immunology or their NK cell tests and results. What’s often not clear from the discussions is the fact that the reason many fertility specialists don’t offer this kind of treatment is because they don’t believe there is any scientific evidence to back up the theories.
This picture above is apparently an NK cell – I can’t imagine they are quite that purple in colour, but it gives them just the kind of slightly sinister look that the name conjures up. In fact, as Dr Norman Shreeve from Cambridge University explains in the latest edition of the BioNews online newsletter, the name is misleading as the cells play a key role in early pregnancy,
If you’re thinking of looking into having your NK cells tested, or taking some of the treatments currently offered in this field, you should first read the information on the HFEA website and a scientific impact paper on the subject from the Royal College of Obstetricians and Gynaecologists which is more complex but also concludes that there is little evidence to support the use of these treatments and that their use should be restricted to research trials.