Complement component 3, often called C3, is an essential protein of the immune system. This protein plays a vital role in the body’s innate immune system, providing the first line of defense against ...

A Crew Dragon spacecraft docked with the International Space Station on Valentine’s Day, and astronauts popped open the hatches at 5:14 pm ET (22:14 UTC) on Saturday evening. The arrival of four new ...

A complement C4 (also known as a complement component 4, or simply C4) is a test to measure the level of C4 proteins you have in your blood. These proteins play a role in how your immune system ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Lea Uradu, J.D., is a Maryland state registered tax preparer, state-certified notary public, ...

Among people with sickle cell disease—an inherited blood disorder—acute chest syndrome (ACS) is the leading cause of death. The condition is the result of red blood cells becoming stiff, sticky, and ...

Activists, university officials and political leaders are deeply divided over what, precisely, constitutes antisemitism. By Vimal Patel Many donors, politicians and Jewish students have pressured ...

The communities secretary wants ‘trailblazer’ government departments to pilot a scheme to ban individuals and groups deemed extremist from public life Michael Gove is set to announce a controversial ...

The complement system is an important innate immune surveillance network that has a key role in protecting our bodies against pathogens and other threats. It is a highly complex system consisting of ...