COMPLEMENT AND COMPLEMENT-LIKE ACTIVITY IN LOWER VERTEBRATES AND INVERTEBRATES

Complement and Complement-like Activity in Lower Vertebrates and Invertebrates

A purified cobra venom factor with C-inhibiting activity also promotes lysis of erythrocytes in fresh mammalian serum. Lysis-inducing activity of purified cobra venom factor was found in sera of lower vertebrates including the cyclostome hagfish and in invertebrates. Lysis-inducing activity was most effective with frog serum. Frog serum was found to be more hemolytic for E(s) in the presence of...

Complement systems in invertebrates. The ancient alternative and lectin pathways.

The complement system in higher vertebrates is composed of about thirty proteins that function in three activation cascades and converge in a single terminal pathway. It is believed that these cascades, as they function in the higher vertebrates, evolved from a few ancestral genes through a combination of gene duplications and divergences plus pathway duplication (perhaps as a result of genome ...

C3 and C4 Complement Levels in Iron Deficiency Anemia

Background and Objectives: Complement proteins are some of the most important plasma proteins of the innate immune system. Impaired immune function is reported in subjects who are iron deficient, and there are documents that these patients are prone to infection. This study was conducted to show whether serum C3 and C4 complement change in adult nonpregnant female with iron deficient anemia or ...

Indirect Complement Fixation in Foot-and-Mouth Disease

Complement factors in Acute Myocardial Infarction and Unstable Angina

Background: Coronary artery disease (CAD) is one of the most important and lethal diseases in the world. CAD represents a board spectrum of disease from silent ischemia at one end to sudden cardiac death at the other end. The middle of this spectrum consists of acute myocardial infarction (AMI) and unstable angina pectoris (UA). Recent data show that the inflammatory process plays a major r...