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Molecular Characterization and Expression Analysis of Creatine Kinase Muscle (CK-M) Gene in Horse
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 Title & Authors
Molecular Characterization and Expression Analysis of Creatine Kinase Muscle (CK-M) Gene in Horse
Do, Kyong-Tak; Cho, Hyun-Woo; Badrinath, Narayanasamy; Park, Jeong-Woong; Choi, Jae-Young; Chung, Young-Hwa; Lee, Hak-Kyo; Song, Ki-Duk; Cho, Byung-Wook;
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Since ancient days, domestic horses have been closely associated with human civilization. Today, horse racing is an important industry. Various genes involved in energy production and muscle contraction are differentially regulated during a race. Among them, creatine kinase (CK) is well known for its regulation of energy preservation in animal cells. CK is an iso-enzyme, encoded by different genes and expressed in skeletal muscle, heart, brain and leucocytes. We confirmed that the expression of CK-M significantly increased in the blood after a 30 minute exercise period, while no considerable change was observed in skeletal muscle. Analysis of various tissues showed an ubiquitous expression of the CK-M gene in the horse; CK-M mRNA expression was predominant in the skeletal muscle and the cardiac muscle compared to other tissues. An evolutionary study by synonymous and non-synonymous single nucleotide polymorphism ratio of CK-M gene revealed a positive selection that was conserved in the horse. More studies are warranted in order to develop the expression of CK-M gene as a biomarker in blood of thoroughbred horses.
Horse;Biomarker;Creatine Kinase Muscle;Exercise;Quantitative-polymerase Chain Reaction;
 Cited by
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