IgE

noun

ˌī-(ˌ)jē-ˈē 

1

: a class of immunoglobulins including antibodies that function especially in allergic reactions

2

: an antibody of the class IgE

Examples of IgE in a Sentence

Recent Examples on the Web

In an allergy, immunoglobulin E (IgE) specific to allergens (normally harmless substances that trigger an immune response in some people) may be detected in the blood. —Amber J. Tresca, Verywell Health, 31 Jan. 2025

When someone with an allergy consumes these foods, their immune system produces IgE antibodies targeting the allergenic proteins. —Gordon G. Chang, Newsweek, 11 Dec. 2024

But a 2023 study found that an allergic response (at least, one including the development of IgE antibodies) is probably not in play here, and psychological factors are more likely the culprit. —Erica Sloan, SELF, 10 Sep. 2024

Xolair works by intercepting immune molecules called IgE, known to be a trigger in allergic reactions. —Sarah Zhang, The Atlantic, 9 Sep. 2024

Xolair's dosage ranges from 75mg to 600mg every two or four weeks, with dose and frequency determined by total serum IgE level and body weight, according to Genentech. —Eduardo Cuevas, USA TODAY, 17 Feb. 2024

There are also some combination at-home tests that check for both IgE and IgG antibodies. —Lauren Manaker Ms, Rdn, Ld, Clec, Verywell Health, 21 Sep. 2023

Xolair is an antibody drug that acts as a sponge, binding to IgE antibodies and preventing them from latching onto these cells. —Kaitlin Sullivan, NBC News, 25 Feb. 2024

Instead of producing IgE antibodies, the body may make IgG antibodies in response to certain foods. —Lauren Manaker Ms, Rdn, Ld, Clec, Verywell Health, 21 Sep. 2023

Word History

First Known Use

1969, in the meaning defined at sense 1

Rhymes for IgE

• oblige

Medical Definition

IgE

noun

ˌī-ˌjē-ˈē 

1

: a class of immunoglobulins including antibodies that function especially in allergic reactions

2

: an immunoglobulin of the class IgE