| acquired immune deficiency syndrome (AIDS) | Progressive impairment of the immune system by the human immunodeficiency virus (HIV); a diagnosis of AIDS is made on the basis of the presence of one or more specific opportunistic infections.
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| gout | A form of arthritis produced by a buildup of uric acid in the body, producing crystals that become lodged in the joints; the most commonly affected area is the big toe.
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| human immunodeficiency virus (HIV) | The virus that is implicated in the development of AIDS.
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| immunocompetence | The degree to which the immune system functions effectively.
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| immunocompromise | The degree to which the immune system responds suboptimally, because of either reduced numbers of cells or reduced functioning.
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| osteoarthritis | A form of arthritis that results when the articular cartilage begins to crack or wear away because of overuse of a particular joint; may also result from injury or other causes; usually affects the weight-bearing joints and is common among athletes and the elderly.
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| psychoneuroimmunology | Interactions among behavioral, neuroendocrine, and immunological processes of adaptation.
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| rheumatoid arthritis (RA) | A crippling form of arthritis believed to result from an autoimmune process, usually attacking the small joints of the hands, feet, wrists, knees, ankles, and neck.
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