A collection of proteins in blood plasma that helps to destroy foreign cells and is an important part of the immune system.
Complement is a normal constituent of blood serum which plays an important part in the antibody-antigen reaction which is the basis of many immunity processes. (See IMMUNITY.)
A large body of blood proteins (over 20), initiated in the liver, and intimately involved in nearly all aspects of immunity and nonspecific resistance. They form two types of self-mediated cascade reactions to antigens, antibody-antigen complexes, dead tissue and the like, and are almost solely able to initiate the rupture and killing of bacteria. The protein strings they form around foreign substances are the main “hooks” used for absorption by macrophages as they digest and clean up.
n. a system of functionally linked proteins that interact with one another to aid the body’s defences when *antibodies combine with *antigens. Complement is involved in the breaking-up (*lysis) and *opsonization of foreign organisms. It is also involved in inflammation and clearing immune (antigen-antibody) complexes.
A group of therapies, often described as “alternative”, which are now increasingly used to complement or to act as an alternative to conventional medicine. They fall into 3 broad categories: touch and movement (as in acupuncture, massage, and reflexology); medicinal (as in naturopathy, homeopathy. and Chinese medicine); and psychological (as in biofeedback, hypnotherapy, and meditation).... complementary medicine
Health care practices that are not currently an integral part of conventional medicine. The list of these practices changes over time as the practices and therapies are proven safe and effective and become accepted as mainstream health care practices. These unorthodox approaches to health care are not based on biomedical explanations for their effectiveness. Examples include homeopathy, herbal formulas, and use of other natural products as preventive and treatment agents.... alternative and complementary health care / medicine / therapies
This is part of the body’s defence mechanism that comprises a series of 20 serum peptides (see PEPTIDE). These are sequentially activated to produce three signi?cant effects: ?rstly, the release of small peptides which provoke in?ammation and attract phagocytes (see PHAGOCYTE); secondly, the deposition of a substance (component C3b) on the membranes of invading bacteria or viruses, attracting phagocytes to destroy the microbes; thirdly, the activation of substances that damage cell membranes – called lytic components – which hasten the destruction of ‘foreign’ cells. (See IMMUNOLOGY.)... complement system
the binding of *complement to the complex that is formed when an antibody reacts with a specific antigen. Because complement is taken up from the serum only when such a reaction has occurred, testing for the presence of complement after mixing a suspension of a known organism with a patient’s serum can give confirmation of infection with a suspected organism. The *Wassermann reaction for diagnosing syphilis is a complement-fixation test.... complement fixation