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Title: [Study on novel inflammatory indicators in marathon exercise monitoring].
Author: Wang QE, Zhao MD, Yuan TT, Bu XX, Wang F, Li CB.
Journal: Zhonghua Yu Fang Yi Xue Za Zhi; 2024 Aug 06; 58(8):1230-1235. PubMed ID: 39142893.
Abstract:
To analyze the changes in lactate dehydrogenase, creatine kinase, creatine kinase isoenzyme, high-sensitivity troponin T, N-terminal B-type natriuretic peptide precursor, homocysteine, and novel inflammatory indices (neutrophil-lymphocyte ratio, platelet-lymphocyte ratio, systemic immune-inflammation index) before and after competitions in amateur marathon runners, and to assess the effects of myocardial injury due to acute exercise and the value of novel inflammatory indices in marathon exercise monitoring. This paper is an analytical study. Amateur athletes recruited by Beijing Hospital to participate in the 2022 Beijing Marathon and the 2023 Tianjin Marathon, and those who underwent health checkups at the Beijing Hospital Medical Checkup Center from January to June 2023 were selected as the study subjects, and 65 amateur marathon runners (41 males and 24 females) and 130 healthy controls (82 males and 48 females) were enrolled in the study according to the inclusion criteria. Peripheral blood was collected one week before, immediately after, and one week after running, and routine blood tests, cardiac enzymes, infarction markers, N-terminal B-type natriuretic peptide precursor, and homocysteine were performed to calculate the values of novel inflammatory indexes. Wilcoxon signed-rank test and Spearman's rank correlation analysis were used to compare the differences in the levels of each index between the amateur marathon population and the health checkup population, and to compare the changes and correlations of each index at the three time points in the amateur marathoners.The results showed that the neutrophil-lymphocyte ratios of the healthy physical examination population and 65 amateur marathoners 1 week before running were 1.73 (1.33, 2.16) and 1.67 (1.21, 2.16), the platelet-lymphocyte ratios were 122.75 (96.69, 155.89) and 120.86 (100.74, 154.63), and the systemic immune inflammation index was 398.62 (274.50, 538.69) and 338.41 (258.62, 485.38), etc.; on 1 week before running, immediately after running and 1 week after running, lactate dehydrogenase of 65 amateur marathon runners was 173.00(159.00, 196.50)U/L,284.00(237.50, 310.50)U/L, 183.00(165.50, 206.50)U/L, creatine kinase was 131.00(94.30, 188.20)U/L,318.00(212.00, 573.15)U/L,139.00(90.55, 202.40)U/L, creatine kinase isoenzyme was 2.50(1.76, 3.43)μg/L,6.24(4.87, 10.30)μg/L,2.73(1.57, 4.40)μg/L.In 65 amateur marathon runners, lactate dehydrogenase, creatine kinase, creatine kinase isoenzyme, high sensitivity troponin T, N-terminal B-type natriuretic peptide precursor, homocysteine, and novel inflammation markers were significantly elevated in the immediate post-run period compared with 1 week before the run, and the differences were statistically significant (Z=-7.009, Z=-6.813, Z=-6.885, Z=-7.009, Z=-7.009, Z=-6.656; P<0.05 for the above indicators).Neutrophil-lymphocyte ratio, platelet-lymphocyte ratio, and systemic immune-inflammatory index all showed significant positive correlation with the pre-and post-run rates of change of high-sensitivity troponin T (ρ=0.28, P=0.03;ρ=0.31, P=0.01;ρ=0.27, P=0.03); these 3 markers were also significantly and positively correlated with the pre-and post-run rates of change in a collection of myocardial-related markers such as lactate dehydrogenase, creatine kinase, creatine kinase isozymes, high-sensitivity troponin T, N-terminal B-type natriuretic peptide precursor, and homocysteine, respectively(r=0.446, P=0.039; r=0.452, P=0.033; r=0.449, P=0.036).In addition, the platelet-lymphocyte ratio was positively correlated with the pre-and post-run rates of change in creatine kinase and creatine kinase isoenzymes(ρ=0.27, P=0.03;ρ=0.28, P=0.02).In conclusion, acute myocardial injury may be triggered during marathon exercise. Changes in novel inflammatory markers were significantly associated with changes in myocardial enzymes, infarction markers, N-terminal B-type natriuretic peptide precursors, and homocysteine, which may be of value for the prediction of myocardial injury during exercise. 分析业余马拉松运动员竞赛前后乳酸脱氢酶、肌酸激酶、肌酸激酶同工酶、高敏肌钙蛋白T、N末端B型钠尿肽前体、同型半胱氨酸及新型炎症指标（中性粒细胞-淋巴细胞比值、血小板-淋巴细胞比值、全身免疫炎症指数）的变化，评估急性运动导致的心肌损伤及新型炎症指标在马拉松运动监测中的应用价值。本文为分析性研究。选择北京医院招募的分别参加2022年北京马拉松和2023年天津马拉松的业余运动员和2023年1—6月于北京医院体检中心健康体检人群作为研究对象，依照纳入标准入选业余马拉松运动员65名（男性41名，女性24名），健康对照人群130名（男性82名，女性48名）。业余马拉松运动员分别在跑前1周、跑后即刻及跑后1周采集外周血，检测或计算上述指标。采用Wilcoxon符号秩检验及Spearman等级相关分析，比较业余马拉松人群与健康体检人群之间各指标水平的差异，同时比较业余马拉松运动员3个时间点各指标的变化及相关关系。结果显示健康体检人群和业余马拉松运动员跑前1周的中性粒细胞-淋巴细胞比值为1.73（1.33，2.16）、1.67（1.21，2.16），血小板-淋巴细胞比值为122.75（96.69，155.89）、120.86（100.74，154.63），全身免疫炎症指数为398.62（274.50，538.69）、338.41（258.62，485.38）等；业余马拉松运动员在跑前1周、跑后即刻及跑后1周的乳酸脱氢酶为173.00（159.00，196.50）U/L、284.00（237.50，310.50）U/L、183.00（165.50，206.50）U/L，肌酸激酶为131.00（94.30，188.20）U/L、318.00（212.00，573.15）U/L、139.00（90.55，202.40）U/L，肌酸激酶同工酶为2.50（1.76，3.43）μg/L、6.24（4.87，10.30）μg/L、2.73（1.57，4.40）μg/L等。65名业余马拉松运动员中，跑后即刻与跑前1周相比，乳酸脱氢酶、肌酸激酶、肌酸激酶同工酶、高敏肌钙蛋白T、N末端B型钠尿肽前体、同型半胱氨酸及新型炎症指标均显著升高，差异有统计学意义（Z=-7.009，Z=-6.813，Z=-6.885，Z=-7.009，Z=-7.009，Z=-6.656；以上指标P<0.05）。中性粒细胞-淋巴细胞比值、血小板-淋巴细胞比值、全身免疫炎症指数均与高敏肌钙蛋白T的跑步前后变化率存在显著的正相关（ρ=0.28，P=0.03；ρ=0.31，P=0.01；ρ=0.27，P=0.03）；这3个指标也分别与以乳酸脱氢酶、肌酸激酶、肌酸激酶同工酶、高敏肌钙蛋白T、N末端B型钠尿肽前体、同型半胱氨酸等心肌相关指标集合的跑步前后变化率具有显著的正相关（r=0.446，P=0.039；r=0.452，P=0.033；r=0.449，P=0.036）。另外，血小板-淋巴细胞比值与肌酸激酶及肌酸激酶同工酶的跑步前后变化率也呈正相关（ρ=0.27，P=0.03；ρ=0.28，P=0.02）。综上，马拉松运动过程中可能引发急性心肌损伤。新型炎症指标变化与心肌酶、心梗标志物、N末端B型钠尿肽前体、同型半胱氨酸变化相关显著，对于运动中心肌损伤预测可能具有一定价值。.

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