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IMR Press / RCM / Volume 23 / Issue 3 / DOI: 10.31083/j.rcm2303089
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Open Access Original Research
Protection of Exogenous Phosphocreatine for Myocardium in Percutaneous Coronary Intervention Related to Inflammation
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1 Department of Geriatric Medicine, Key Laboratory of Cardiovascular Proteomics of Shandong Province, Qilu Hospital of Shandong University, 250012 Jinan, Shandong, China
2 The Forth Hospital of Jinan, 250000 Jinan, Shandong, China
*Correspondence: xingyanqiu@sina.com (Yan-qiu Xing)
These authors contributed equally.
Rev. Cardiovasc. Med. 2022, 23(3), 89; https://doi.org/10.31083/j.rcm2303089
Submitted: 15 December 2021 | Revised: 10 February 2022 | Accepted: 21 February 2022 | Published: 9 March 2022
This is an open access article under the CC BY 4.0 license.
Abstract

Objectives: Although injury of myocardium after percutaneous coronary intervention (PCI) has been reported, the mechanism and effect of exogenous phosphocreatine (PCr) supplementation on the injury are yet to be elucidated. Biomarkers, such as interleukin-6 (IL-6) and variations in white blood cells for inflammation, and serum cardiac troponin I (cTnI) for myocardial injury are examined. Methods: A total of 105 patients undergoing PCI were included and randomly divided into two groups: control (treated with routine hydration therapy) and PCr (treated with additional intravenous infusion of exogenous PCr). The serum levels of biomarkers were detected at administration and 4, 12, 24, and 48 h after PCI, with natural logarithmic (log${}_{e}$) transformation of data when modeling assumptions were not fulfilled. Results: The level of log${}_{e}$-transformed IL-6 increased in both groups, especially at 12 and 24 h after the operation, and that of PCr group was less than the control group at 48 h. The content of log${}_{e}$-transformed cTnI was significantly increased in both groups, while that of the PCr group was markedly lower than the control group at all time points after PCI. Moreover, the ratio of neutrophils was elevated at all time points after PCI, while that of the PCr group was lower at 48 h, and the variations in the ratio of lymphocytes showed opposite results. Conclusions: Exogenous phosphocreatine reduces stent implantation, triggers inflammation manifested as decreased serum levels of IL-6 and the aggregation of neutrophils, and protects the myocardium of the patients undergoing PCI. These findings provided the potential mechanism and treatment for myocardial injury associated with PCI.

Keywords
percutaneous coronary intervention
myocardial injury
exogenous phosphocreatine
inflammation
interleukin-6
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