Antiatherogenic mutation: A genetic mutation that protects against atherogenesis, the formation of atheromas (plaques) in arteries. Antiatherogenic mutations include CETP deficiency (cholesterol ester transfer protein deficiency) and familial hypobetalipoproteinemia.
Antibacterial: Anything that destroys bacteria or suppresses their growth or their ability to reproduce. Heat, chemicals such as chlorine, and antibiotic drugs all have antibacterial properties. Many antibacterial products for cleaning and handwashing are sold today. Such products do not reduce the risk for symptoms of viral infectious diseases in otherwise healthy persons. This does […]
Antibiotic: A drug used to treat bacterial infections. Antibiotics have no effect on viral infections. Originally, an antibiotic was a substance produced by one microorganism that selectively inhibits the growth of another. Synthetic antibiotics, usually chemically related to natural antibiotics, have since been produced that accomplish comparable tasks. In 1926, Alexander Fleming discovered penicillin, a […]
- Antibiotic resistance
The ability of bacteria and other microorganisms to resist the effects of an antibiotic to which they were once sensitive. Antibiotic resistance is a major concern of overuse of antibiotics. Also known as drug resistance.
- Antibiotic-resistant tuberculosis
Antibiotic-resistant tuberculosis: See: Tuberculosis, antibiotic-resistant.
Antibody: An immunoglobulin, a specialized immune protein, produced because of the introduction of an antigen into the body, and which possesses the remarkable ability to combine with the very antigen that triggered its production. The production of antibodies is a major function of the immune system and is carried out by a type of white […]