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

"But IgG antibodies never cross the cell layers and they can never make it inside the cysts."

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Researchers also found tumor-specific IgG antibodies and persistent plasma cells in the bone marrow, clear signs of a durable, body-wide immune defense capable of preventing the cancer from returning.

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

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

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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.

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