It is part of the innate immune system and normally helps to fight infections and eliminate damaged and infected body cells. "In patients with long COVID, the complement system no longer returns ...

indicating inflammation of myeloid cells and activation of a family of immune system proteins called the complement system.

In blood cancers such as chronic lymphocytic leukemia, B cells of the immune system multiply uncontrollably. One form of ...

Professor Markus Sauer from the Biocentre of Julius-Maximilians-Universität (JMU) Würzburg in Bavaria, Germany ...

A study published in the Journal of Immunology shows for the first ... Aβ plaques have been shown to activate the complement system which, through activation factors (such as C3a and C5a ...