A gamma-globulin factor in the serum of patients with systemic lupus erythematosus that reacts with isolated cell nuclei 1 or nucleoprotein 2,3 has been detected in many ways. 4 The standard method of ...

A complement blood test checks for autoimmune diseases or other issues with your immune system. Your doctor might test you if you have a family history of certain conditions, such as rheumatoid ...

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 ...

R. L. Kahn, R. M. Olin Jr. The velocity of fixation of complement employing syphilitic serums and 6 different Wassermann antigens was studied. The periods of fixation ...

Your complement system consists of a group of important proteins in your bloodstream. These proteins help your immune system fight off harmful invaders, such as bacteria, and other foreign substances.

DURING both research and routine complement fixation tests with foot-and-mouth disease virus, we attempted to develop a similar test for the condition known as contagious ecthyma of the lips, ...

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 ...

A direct complement-fixation (CF) test was used to measure infectious bronchitis virus (IBV) antigen in eggs, and antibodies in heat-inactivated chicken serum. The antigen was prepared from ...

NORMAL guinea pig serum is the most common source of complement for the complement-fixation test, and may be used fresh or, more commonly, preserved either by freeze-drying or by Richardson's method 1 ...