PMID- 34776455 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20211206 IS - 1674-8301 (Print) IS - 2352-4685 (Electronic) IS - 1674-8301 (Linking) VI - 35 IP - 6 DP - 2021 Jul 30 TI - Isometric exercise promotes arteriogenesis in rats after myocardial infarction. PG - 436-447 LID - 10.7555/JBR.35.20210062 [doi] AB - Isometric exercise (IE) is a promising intervention of noninvasive revascularization in patients with acute myocardial infarction (AMI). This study aimed to investigate the impact and mechanisms of IE training on arteriogenesis in AMI. Male Sprague-Dawley rats were randomly assigned into the sham-operation group (SO), myocardial infarction (MI) group, and 13 IE subgroups treated according to training intensity, frequency, duration, or monocyte chemoattractant protein-1 (MCP-1), or/and fibroblast growth factor-2 (FGF-2) inhibitors for eight weeks. Our results demonstrated that the IE group achieved superior improvement compared with the MI group in terms of left ventricular ejection fraction (LVEF), myocardial infarction size (MIS), arterial density (AD), monocytes (MNCs), smooth muscle cells (SMCs), endothelial cells (ECs), relative collateral blood flow (RCBF), MCP-1, and FGF-2 at the endpoint. Positive correlations between MCP-1 and MNCs, MNCs and FGF-2, FGF-2 and SMCs, SMCs and AD, as well as AD and RCBF were observed. This study demonstrated that with MI of 100% load 20 times daily for eight weeks, the arteriogenesis was improved, which may be attributed to the recruitment of MNCs and SMCs in remote ischemic myocardium caused by increases in MCP-1 and FGF-2 expression. FAU - Zhang, Xintong AU - Zhang X AD - Department of Rehabilitation Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China. FAU - Zheng, Yu AU - Zheng Y AD - Department of Rehabilitation Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China. FAU - Geng, Canru AU - Geng C AD - Department of Rehabilitation Medicine, the Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu 215000, China. FAU - Guan, Juntao AU - Guan J AD - Department of Rehabilitation Medicine, the Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu 215000, China. FAU - Wang, Lu AU - Wang L AD - Department of Rehabilitation Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China. FAU - Zhang, Xiu AU - Zhang X AD - Department of Rehabilitation Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China. FAU - Cheng, Yihui AU - Cheng Y AD - Department of Rehabilitation Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China. FAU - Li, Jian'an AU - Li J AD - Department of Rehabilitation Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China. FAU - Lu, Xiao AU - Lu X AD - Department of Rehabilitation Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China. LA - eng PT - Journal Article PL - China TA - J Biomed Res JT - Journal of biomedical research JID - 101551157 PMC - PMC8637657 OTO - NOTNLM OT - acute myocardial infarction OT - arteriogenesis OT - fibroblast growth factor-2 OT - isometric exercise training OT - monocyte chemoattractant protein-1 COIS- The authors reported no conflict of interests. EDAT- 2021/11/16 06:00 MHDA- 2021/11/16 06:01 PMCR- 2021/11/01 CRDT- 2021/11/15 06:46 PHST- 2021/11/16 06:00 [pubmed] PHST- 2021/11/16 06:01 [medline] PHST- 2021/11/15 06:46 [entrez] PHST- 2021/11/01 00:00 [pmc-release] AID - jbr-35-6-436 [pii] AID - 10.7555/JBR.35.20210062 [doi] PST - ppublish SO - J Biomed Res. 2021 Jul 30;35(6):436-447. doi: 10.7555/JBR.35.20210062.