atopy

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Related to canine atopy: Flea allergy dermatitis

atopy

 [at´o-pe]
a clinical hypersensitivity state or allergy with a hereditary predisposition; the tendency to develop an allergy is inherited, although the specific clinical form (such as hay fever or asthma) is not. The antibody reagin is involved. Called also atopic, hereditary, or spontaneous allergy.

at·o·py

(at'ō-pē),
A genetically determined state of hypersensitivity to environmental allergens. Type I allergic reaction is associated with the IgE antibody and a group of diseases, principally asthma, hay fever, and atopic dermatitis.
[G. atopia, strangeness, fr. a- priv. + topos, a place]

atopy

/at·o·py/ (at´ah-pe) a genetic predisposition toward the development of immediate hypersensitivity reactions against common environmental antigens (atopic allergy), most commonly manifested as allergic rhinitis but also as bronchial asthma, atopic dermatitis, or food allergy.

atopy

See atopic.

atopy

A state of increased sensitivity to common antigens (e.g., house dust, animal dander, pollen) with increased production of allergen-specific IgE. Atopy may have a hereditary component, given the increased susceptibility to hay fever, asthma and eczematoid dermatitis.

atopy

Clinical immunology A state of ↑ sensitivity to common antigens–eg, house dust, animal dander, pollen, with ↑ production of allergen-specific IgE; atopy may have a hereditary component as there is ↑ susceptibility to hay fever, asthma, and eczematoid dermatitis. See Asthma, Atopic dermatitis, Hay fever.

at·o·py

(at'ŏ-pē)
A genetically determined state of hypersensitivity to environmental allergens. Type I allergic reaction is associated with the IgE antibody and a group of diseases, principally asthma, hay fever, and atopic dermatitis.
[G. atopia, strangeness, fr. a- priv. + topos, a place]

atopy

A state giving rise to an allergy in which the reaction occurs at a different site from that of contact with the causal ALLERGEN. Atopy is an immediate hypersensitivity reaction associated with IMMUNOGLOBULIN E (IgE) and is a maternally transmitted genetic disorder due to mutations in a gene on chromosome 11. This gene codes for the IgE receptor on MAST CELLS. Atopy causes a proneness to ASTHMA, HAY FEVER and ECZEMA (atopic DERMATITIS). The term is derived from the Greek a , not and topos , a place.

Atopy

A state that makes persons more likely to develop allergic reactions of any type, including the inflammation and airway narrowing typical of asthma.
Mentioned in: Asthma

at·o·py

(at'ŏ-pē)
A genetically determined state of hypersensitivity to environmental allergens.
[G. atopia, strangeness, fr. a- priv. + topos, a place]

atopy

a clinical syndrome involving type I hypersensitivity (allergy) with a hereditary predisposition. Immunoglobulin E (IgE) is involved.

canine atopy
characterized by pruritus, often seasonal, mainly of feet, face and ventral body, with self-trauma. Secondary pyoderma, hyperhidrosis and otitis externa are often present. Rhinitis, conjunctivitis or gastrointestinal disorders may also occur.
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