1
: a class of immunoglobulins including antibodies found in external bodily secretions (such as saliva, tears, and sweat)
2
: an antibody of the class IgA

Examples of IgA in a Sentence

Recent Examples on the Web What about the company Vertex didn’t buy? Vertex Pharmaceuticals’ decision to pay $4.9 billion for Alpine Immune Sciences cast a spotlight on the severe kidney disease IgA nephropathy — and, by extension, a company called Vera Therapeutics. Damian Garde, STAT, 12 Apr. 2024 No one knows what causes IgA nephropathy, which causes kidney inflammation, blood in the urine, and possible kidney failure. Meghana Keshavan, STAT, 28 Mar. 2024 Novartis said an experimental drug achieved the goals of a Phase 3 study in participants with IgA nephropathy, a type of kidney disease. Meghana Keshavan, STAT, 30 Oct. 2023 There are different types of immunoglobulins, including IgG, IgM, IgA, IgD, and IgE. Lauren Manaker Ms, Rdn, Ld, Clec, Verywell Health, 21 Sep. 2023 In the trial, 404 patients with the disorder, IgA nephropathy, were randomized to receive either Travere’s daily pill, Filspari, or irbesartan, a decades-old blood pressure drug often used to help manage the disease. Jason Mast Reprints, STAT, 21 Sep. 2023 Like bouncers at a bar, IgA antibodies are the primary immune molecules on guard in the mucosa. Brenda Goodman, CNN, 18 July 2022 The adaptive immune system also provides a high level of protection by producing the antibody immunoglobulin A (IgA) which is transmitted across the surface of the gut epithelial cells to prevent infection. William A. Haseltine, Forbes, 26 Mar. 2022 Mounting evidence supports IgA antibodies as the key to preventing infection. Apoorva Mandavilli, New York Times, 2 Feb. 2022

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'IgA.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

immunoglobulin

First Known Use

1969, in the meaning defined at sense 1

Time Traveler
The first known use of IgA was in 1969

Dictionary Entries Near IgA

Cite this Entry

“IgA.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/IgA. Accessed 20 Apr. 2024.

Medical Definition

1
: a class of immunoglobulins that include antibodies found in external bodily secretions (as saliva, tears, and sweat)
2
: an immunoglobulin of the class IgA

More from Merriam-Webster on IgA

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