IgG

Immunology.

1. immunoglobulin G: a class of circulating antibodies predominant in serum, produced by plasma cells and memory cells in response to pathogens and other foreign substances, able to pass through the placental wall to the fetal circulation to impart immune defense for the period of infancy.

Word History and Origins

Origin of IgG¹

First recorded in 1960–65

Example Sentences

As people age, their IgGs lose anti-inflammatory properties and gain pro-inflammatory characteristics.

From Science Daily

None of these differences, like IgG which is also in human breast milk, is necessarily harmful to humans.

From Salon

The IgA antibodies were shown to bind stronger to the spike protein of SARS-CoV-2 and were more effective in neutralizing the virus compared to the original IgG antibodies.

From Science Daily

But the American Academy of Allergy, Asthma, & Immunology advises against this because evidence linking IgG levels to food sensitivities and allergies is lacking.

From Washington Post

They produce antibodies called IgG that circulate in the blood and can be marshaled when needed.

From Seattle Times