title: Bone marrow mesenchymal stem cells improve myocardial function in a swine model of acute myocardial infarction.
abstract: The aim of the current study was to confirm the effect and elucidate the mechanism of bone marrow mesenchymal stem cells (BMSCs) in acute myocardial infarction (AMI). AMI was induced in mini‑swine by ligating the left anterior descending coronary artery, and BMSCs (1x107) were injected via a sterile microinjection into the ischemic area. Six months postoperatively, electrocardiograph‑gated single photon emission computed tomography revealed that the myocardial filling defect was reduced and the left ventricular ejection fraction was improved in the BMSC group compared with the control group (P<0.05). Histopathological examination indicated that, in the BMSC treatment group, the percentage of survived myocardial tissue and the vessel density were increased, and the percentage of apoptosis was decreased compared with controls (P<0.05). Reverse transcription‑polymerase chain reaction results indicated that the expression levels of multiple inflammatory factors were significantly upregulated in the BMSC group compared with levels in the control group (P<0.05). In conclusion, the present study demonstrated that BMSC injection significantly improved cardiac function and reduced infarct size in six months, indicating that this method may be valuable for future study in clinical trials.
authors: Clinical Molecular Biology Laboratory, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China.
authors: Jing-Jie
authors: JJ
authors: Zhao
authors: TEDA International Cardiovascular Hospital and Nankai University Medical College, Tianjin 300457, P.R. China.
authors: Xiao-Cheng
authors: XC
authors: Liu
authors: Central Research Laboratory, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China.
authors: Feng
authors: F
authors: Kong
authors: Central Research Laboratory, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China.
authors: Tong-Gang
authors: TG
authors: Qi
authors: Central Research Laboratory, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China.
authors: Guang-Hui
authors: GH
authors: Cheng
authors: Central Research Laboratory, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China.
authors: Jue
authors: J
authors: Wang
authors: Central Research Laboratory, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China.
authors: Chao
authors: C
authors: Sun
authors: Central Research Laboratory, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China.
authors: Yun
authors: Y
authors: Luan
mesh_terms: D000208:Acute Disease; D000818:Animals; D017209:Apoptosis; D001854:Bone Marrow Cells / Q000166:cytology*; D004195:Disease Models, Animal; D007091:Image Processing, Computer-Assisted; D045164:Mesenchymal Stem Cell Transplantation; D009203:Myocardial Infarction / Q000628:therapy*; D009206:Myocardium / Q000378:metabolism / Q000473:pathology*; D011184:Postoperative Period; D013552:Swine; D015899:Tomography, Emission-Computed, Single-Photon; D016277:Ventricular Function, Left