anergy

anergy /an·er·gy/ (an´er-je)

1. extreme lack of energy.

2. diminished reactivity to one or more specific antigens.aner´gic

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an·er·gy (nr-j)

n.

Absence of sensitivity to substances that would normally elicit an antigenic response.

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an·ergic (-nûrjk, nr-) adj.

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anergy

[an′ərjē]

Etymology: Gk, a, ergon, not work

1 lack of activity, lack of energy leading to inactivity.

2 an immunodeficient condition characterized by a lack of or diminished reaction to an antigen or group of antigens. This state may be seen in advanced tuberculosis and other serious infections, acquired immunodeficiency syndrome, and some malignancies. anergic, adj.

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anergy [an´er-je]

1. lack of energy; extreme passivity.

2. diminished reactivity to specific antigen(s). adj., adj aner´gic.

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anergy (an´urjē),

n in terms of hypersensitivity, an inability to react to specific antigens (i.e., lack of reaction to intradermally injected antigens in measles, Hodgkin's sarcoma, and overwhelming tuberculosis).

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anergy

diminished reactivity to specific antigen(s).

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anergy

Immunology Depression or absence of an immune response to an antigen to which the host was previously sensitive; it is characterized by ↓/absent lymphokine secretion by viable T cells when the T cell receptor is engaged by an antigen; it can be tested by loss of delayed hypersensitivity–eg, to PPD, Candida antigens, or DCNB. See Clonal anergy, Deletion. Cf Allergy.