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Antibody cross reactivity

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• Antibody, antithyroglobulin

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• Antibody-dependent cell-mediated cytotoxicity

  Antibody-dependent cell-mediated cytotoxicity: An immune response in which antibody, by coating target cells, makes them vulnerable to attack by immune cells. Antibody-dependent cell-mediated cytotoxicity is commonly abbreviated ADCC.

• Anticholinergic

  Anticholinergic: Opposing the actions of the neurotransmitter acetylcholine. Anticholinergic drugs inhibit the transmission of parasympathetic nerve impulses, thereby reducing spasms of smooth muscles (for example, muscles in the bladder). Side effects of anticholinergic medications include dry mouth and related dental problems, blurred vision, tendency toward overheating (hyperpyrexia), and in some cases, dementia-like symptoms.

• Anticipation

  Anticipation: The progressively earlier appearance and increased severity of a disease from generation to generation. The phenomenon of anticipation was once thought to be an artifact, but a biological basis for it has been discovered in a number of genetic disorders, such as myotonic dystrophy and Huntington disease.

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