Medical Action Ontology

Last uploaded: May 24, 2024
Preferred Name

Abnormal eosinophil morphology

Synonyms

Abnormality of eosinophils

Definitions

An abnormal count or structure of eosinophils. Eosinophils stain with acidophilic dyes including eosin red. They have a bilobed nucleus, are weakly phagocytic, and are involved in the immune defense against worms. Eosinophils are released into the peripheral blood in a phenotypically mature state, and are capable of undergoing activation and recruitment into tissues in response to appropriate stimuli, most notably cytokines interleukin-5 and the eotaxins. Eosinophils spend only a brief time in the peripheral blood (half-life of about 18 hours) before they migrate to the thymus or gastrointestinal tract, where they reside under homeostatic conditions. In response to inflammatory stimuli, eosinophils develop from committed bone marrow progenitors, after which they exit, migrate into the blood and subsequently accumulate in peripheral tissues where survival is prolonged.

ID

http://purl.obolibrary.org/obo/HP_0001879

comment

Eosinophils stain with acidophilic dyes including eosin red. They have a bilobed nucleus, are weakly phagocytic, and are involved in the immune defense against worms. Eosinophils are released into the peripheral blood in a phenotypically mature state, and are capable of undergoing activation and recruitment into tissues in response to appropriate stimuli, most notably cytokines interleukin-5 and the eotaxins. Eosinophils spend only a brief time in the peripheral blood (half-life of about 18 hours) before they migrate to the thymus or gastrointestinal tract, where they reside under homeostatic conditions. In response to inflammatory stimuli, eosinophils develop from committed bone marrow progenitors, after which they exit, migrate into the blood and subsequently accumulate in peripheral tissues where survival is prolonged.

database_cross_reference

UMLS:C4025738

definition

An abnormal count or structure of eosinophils.

has_exact_synonym

Abnormality of eosinophils

label

Abnormal eosinophil morphology

prefixIRI

HP:0001879

prefLabel

Abnormal eosinophil morphology

subClassOf

http://purl.obolibrary.org/obo/HP_0001911

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