troponin

noun

tro·​po·​nin ˈtrō-pə-nən How to pronounce troponin (audio)
ˈträ-,
-ˌnin
: a protein of muscle that together with tropomyosin forms a regulatory protein complex controlling the interaction of actin and myosin and that when combined with calcium ions permits muscular contraction

Examples of troponin in a Sentence

Recent Examples on the Web If none are available, doctors should be extra wary of the blood panel’s readings, perform multiple tests to confirm low troponin levels, and also reference data from EKGs and other imaging. Lizzy Lawrence, STAT, 17 July 2023 The tests inaccurately showed low levels of troponin, a protein that indicates damage to the heart. Lizzy Lawrence, STAT, 17 July 2023 Elevated troponin was significantly higher in people who had type 2 diabetes for a longer period of time and whose blood sugar levels were not well-controlled. Cathy Cassata, Health, 12 June 2023 The issue caused the test to falsely pick up 30% less troponin than is present. Lizzy Lawrence, STAT, 17 July 2023 This article discusses the purpose of the troponin test, what to expect with this type of testing, and how to interpret troponin levels. Heidi Moawad, Md, Verywell Health, 3 July 2023 Minutes after the Colts selected Paye — a decision cemented by a 10 p.m. medical report the night before that cleared up concerns about the level of troponin in his heart — the rookie defensive end was already talking about working on developing that rush. Joel A. Erickson, The Indianapolis Star, 14 May 2021 Various cardiac tests are in place to monitor the heart and overall health of a player after a positive COVID-19 test, Tucker said, including an echocardiogram and troponin test, which measures the level of proteins in the blood that can detect heart injury. Daniel Oyefusi, baltimoresun.com, 12 Aug. 2020 Levels of troponin, specific proteins that may indicate issues with the heart, including heart injury, were elevated in about 84% of the patients, according to the study. Berkeley Lovelace Jr., NBC News, 5 Dec. 2022

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'troponin.' 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

by shortening & alteration from tropomyosin

Note: The name was apparently first used in print in a letter by the Japanese biochemist Setsuro Ebashi (1922-2006) and coworker Ayako Kodama, "Interaction of Troponin with F-Actin in the Presence of Tropomyosin," Journal of Biochemistry (Japanese Biochemical Society), vol. 59, issue 4 (April, 1966), p. 425.

First Known Use

1966, in the meaning defined above

Time Traveler
The first known use of troponin was in 1966

Dictionary Entries Near troponin

Cite this Entry

“Troponin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/troponin. Accessed 21 Apr. 2024.

Medical Definition

troponin

noun
tro·​po·​nin ˈtrōp-ə-nən How to pronounce troponin (audio) ˈträp- How to pronounce troponin (audio)
-ˌnin
: a protein of muscle that together with tropomyosin forms a regulatory protein complex controlling the interaction of actin and myosin and that when combined with calcium ions permits muscular contraction

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