C-reactive protein

American  

[see-ree-ak-tiv] / ˈsi riˌæk tɪv /

noun

Biochemistry.

1. a globulin that increases in concentration in the bloodstream during infectious states and other abnormal conditions. CRP

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C-reactive protein Scientific  

/ sē′rē-ăk′tĭv /

1. An antibody found in the blood in certain acute and chronic conditions including infections and cancers. It is a nonspecific indicator of inflammation and therefore not diagnostic of any one disease.

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Etymology

Origin of C-reactive protein

First recorded in 1955–60; for C-polysaccharide, which is precipitated by this protein

Example Sentences

Blood samples were also analyzed for high-sensitivity C-reactive protein, a widely used marker of inflammation.

From Science Daily • Mar. 19, 2026

C-reactive protein, a liver product that’s linked to inflammation, fell about 40% among those taking Wegovy.

From Seattle Times • Nov. 11, 2023

The results demonstrated improvements in many variables related to cardio-metabolic health, such as blood cholesterol, blood pressure, insulin and C-reactive protein — a protein that increases in response to inflammation.

From Salon • Oct. 3, 2021

Other early induced proteins specific for bacterial cell wall components are mannose-binding protein and C-reactive protein, made in the liver, which bind specifically to polysaccharide components of the bacterial cell wall.

From Textbooks • Jun. 19, 2013

But her blood tests were not: Maryman’s white cell and platelet count, her sedimentation rate and level of C-reactive protein, which indicate inflammation, were markedly elevated.

From Washington Post