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creatine kinase
noun
: any of three isoenzymes found especially in vertebrate skeletal and myocardial muscle that catalyze the transfer of a high-energy phosphate group from phosphocreatine to ADP with the formation of ATP and creatine
Examples of creatine kinase in a Sentence
Recent Examples on the Web
The muscle tissue breaks down and releases a dangerous protein called creatine kinase into the blood, but the condition is treatable, typically with IVs to flush the proteins out of a patient's system, according to the Cleveland Clinic.
—Danielle Jennings, Peoplemag, 23 Sep. 2024
Ruptured cells release enzymes called creatine kinases, which can damage tissues.
—Cara Ocobock, Scientific American, 1 Nov. 2023
President Biden Has Begun Using a CPAP Machine for Sleep Apnea
His lab work — which entailed a comprehensive metabolic panel (CMP), urinalysis, complete blood count (CBC) and level checks of vitamin D, homocysteine, magnesium, folate and creatine kinase — returned normal.
—Kyler Alvord, Peoplemag, 28 Feb. 2024
For patients with myositis, muscles are damaged by elevated levels of an enzyme called creatine kinase.
—Theresa Gaffney, STAT, 21 Feb. 2024
Muscle aches due to statins often cause elevations in a blood test called creatine kinase (CK), which represents muscle damage.
—Dr. Keith Roach, oregonlive, 11 Aug. 2023
Sanders checked muscle enzyme levels and found unusually high concentrations of the enzyme creatine kinase, an indicator of muscle injury.
—Shilpa Ravella, Discover Magazine, 10 Mar. 2017
Instead, the biggest difference was in the blood levels of creatine kinase and lactate dehydrogenase, both markers of muscle damage, which were significantly elevated immediately after the race and 24 hours later in the crampers.
—Alex Hutchinson, Outside Online, 1 Sep. 2020
For example, day-after creatine kinase averaged 2,439 international units per liter.
—Alex Hutchinson, Outside Online, 1 Sep. 2020
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Word History
First Known Use
1964, in the meaning defined above
Dictionary Entries Near creatine kinase
Cite this Entry
“Creatine kinase.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/creatine%20kinase. Accessed 8 Nov. 2024.
Medical Definition
creatine kinase
noun
: any of three isoenzymes found especially in vertebrate skeletal and myocardial muscle and the brain that catalyze the transfer of a high-energy phosphate group from phosphocreatine to ADP with the formation of ATP and creatine and typically occur in elevated levels in the blood following injury to brain or muscle tissue
More from Merriam-Webster on creatine kinase
Britannica.com: Encyclopedia article about creatine kinase
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