TIt is part of what my llmd tests as a cytokine panel. It is an indicator for inflammation.
I shared some info about
it in this old thread
www.healingwell.com/community/default.aspx?f=30&m=2752325"Dr Shoemaker says that in chronic Lyme patients, this marker is increased by elevated levels of toxins. Long-term exposure to toxins also disrupts the balance of hormones and endorphins. As a result, these people become much more sensitive to pain, get tired much more quickly, and feel overwhelmed by normal sounds, lighting, or smells. These patients often need extra help in removing toxins.