Alterations in amino acid levels and metabolite ratio of spinal cord in rat with myocardial ischemia-reperfusion injury by proton magnetic resonance spectroscopy.
单位:[1]Departments of Anesthesiology and Pain Medicine, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, PR China华中科技大学同济医学院附属同济医院麻醉科[2]School of Human and Social Sciences, University of West London, London, UK[3]Department of Anesthesiology, The First Affiliated Quanzhou Hospital of Fujian Medical University, Quanzhou 362000, PR China[4]Department of Gastrointestinal Surgery, Zhongnan Hospital, Wuhan University, No. 169 Donghu Road, Wuhan 430071, PR China[5]Department of Anesthesiology, People’s Hospital of Hainan Province, Haikou, Hainan, PR China
The mechanism behind spinal metabolites and myocardial ischemia-reperfusion (IR) injury is not well understood. Proton magnetic resonance spectroscopic analysis of spinal cord extracts provides a quick evaluation of the specific metabolic activity in rats with myocardial IR injury. We investigated the relationship between the IR-related variables and the changes in spinal metabolites.
Proton magnetic resonance spectroscopy (1H-MRS) was used to assess the spinal metabolites of adult rats with and without myocardial IR injury (n = 6 per group). Myocardial IR injury was reproduced using intermittent occlusion of the left anterior descending coronary artery. We studied the relationship between the metabolite ratio measurement and IR-related variables. All rats underwent 1H-MRS, with the ratio of interest placed in different spinal cord segments to measure levels of twelve metabolites including N-acetylaspartate (NAA), taurine (Tau), glutamate (Glu), gamma amino acid butyric acid (GABA), creatine (Cr), and myoinositol (MI), etc. Results: Rats with myocardial IR injury had higher concentration of Tau in the upper thoracic spinal cord (P < 0.05), and lower concentration of Gly and Glu in the cervical segment of the spinal cord (P < 0.05), when compared to the Control group. The ratios of glutamate/taurine (Glu/Tau), Glu/(GABA + Tau) and Glu/Total were significantly different between the IR group and the Control group in the upper thoracic spinal cord (P < 0.05). So were the ratios of Glu/(GABA + Tau) in the cervical segment (P < 0.05), and Glu/Tau and Glu/(GABA + Tau) in the lower thoracic spinal cord (P < 0.05).
These findings suggest that myocardial IR injury may be related to spinal biochemical alterations. It is speculated that these observed changes in the levels of spinal metabolites may be involved in the pathogenesis and regulation of myocardial IR injury.
基金:
This work was supported in part by grants from the National Natural Science Foundation of China (No. 81873467, 81670240, 81770283, 81072152) and the Clinical Medical Research Center of Peritoneal Cancer of Wuhan (No. 201506091-1020462) and the Natural Scien-ce Foundation of Hubei Province (No. 2015-CFA027), the Research Foundation of Health and Family Planning Commission of Hubei Province (No. WJ2015MA010, WJ2017M249), Medical innovation project in Fujian Province (No. 2017-CX-48) and the Key Research and Development Project of Hainan Province of China (ZDYF2018115 to D.Z.W).
第一作者单位:[1]Departments of Anesthesiology and Pain Medicine, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, PR China
通讯作者:
通讯机构:[1]Departments of Anesthesiology and Pain Medicine, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, PR China[4]Department of Gastrointestinal Surgery, Zhongnan Hospital, Wuhan University, No. 169 Donghu Road, Wuhan 430071, PR China[*1]Department of Gastrointestinal Surgery, Zhongnan Hospital, Wuhan University, No. 169 Donghu Road, Wuhan 430071, Hubei, PR China.[*2]Department of Anesthesiology and Pain Medicine, Tongji Hos-pital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, PR China.
推荐引用方式(GB/T 7714):
Qian Wang,Zhi-Xiao Li,Yu-Juan Li,et al.Alterations in amino acid levels and metabolite ratio of spinal cord in rat with myocardial ischemia-reperfusion injury by proton magnetic resonance spectroscopy.[J].American journal of translational research.2019,11(5):3101-3108.
APA:
Qian Wang,Zhi-Xiao Li,Yu-Juan Li,Anne Manyande,Shun-Yuan Li...&Hong-Bing Xiang.(2019).Alterations in amino acid levels and metabolite ratio of spinal cord in rat with myocardial ischemia-reperfusion injury by proton magnetic resonance spectroscopy..American journal of translational research,11,(5)
MLA:
Qian Wang,et al."Alterations in amino acid levels and metabolite ratio of spinal cord in rat with myocardial ischemia-reperfusion injury by proton magnetic resonance spectroscopy.".American journal of translational research 11..5(2019):3101-3108