GFAP and multiple sclerosis: Another study advocates that neuroinflammation may be associated with glial fibrillary acid protein (GFAP) and soluble triggering receptors expressed on myeloid cells-2 (sTREM2) levels in multiple sclerosis, with the findings indicating that increased GFAP and sTREM2 expression may characterise patients at higher risk of progression, as they were positively related to age at diagnosis19.