{"title":"电针预处理减轻心肌缺血再灌注损伤的机制:小脑顶状核与下丘脑外侧区的相互作用。","authors":"Qing Yu, Li-Bin Wu, Fan Zhang, Xiao-Tong Wei, Pian-Pian Chen, Shuai-Ya Wang, Mei-Yi Cai, Qi Shu, Liao-Yuan Li, Zi-Jian Wu, Rong-Lin Cai, Ling Hu","doi":"10.51507/j.jams.2021.14.6.207","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>Myocardial ischemia reperfusion injury (MIRI) is an important mechanism of post-myocardial infarction injury and a main cause of death in patients with ischemic heart disease. Electroacupuncture (EA) pretreatment is effective for the prevention and treatment of MIRI, but mechanisms mediating the effects of cardiovascular disease EA treatments remain unclear.</p><p><strong>Objectives: </strong>To determine whether the lateral hypothalamus (LHA) and the cerebellar fastigial nucleus (FN) are involved in the protective effects of EA stimulation on MIRI.</p><p><strong>Methods: </strong>EA pretreatment was performed for 7 days before the establishment of the MIRI model. ST-segment changes on electrocardiograms were recorded and the Curtis-Walker arrhythmia score was used to evaluate changes in reperfusion injury. Hematoxylin-eosin staining was applied to evaluate the pathological and morphological changes in myocardial tissue. c-fos expression in the LHA and FN was determined by immunofluorescence staining. Glutamic (Glu) and γ-Aminobutyric acid (GABA) levels were measured using a high-performance liquid chromatography-electrochemical method.</p><p><strong>Results: </strong>EA pretreatment reduced ST-segment elevation, arrhythmia scores, and morphological changes in MIRI myocardial cells in rats, and decreased the c-fos protein expression in LHA/FN nuclei. MIRI was associated with an imbalance between GABA and Glu levels, whereas EA pretreatment increased GABA levels and decreased Glu levels in the LHA/FN.</p><p><strong>Conclusion: </strong>FN and LHA are involved in the EA-mediated attenuation of MIRI. Pretreatment with EA plays a protective role in the myocardium by regulating Glu and GABA release in the LHA and FN.</p>","PeriodicalId":46854,"journal":{"name":"Journal of Acupuncture and Meridian Studies","volume":"14 6","pages":"207-218"},"PeriodicalIF":0.9000,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Mechanisms of Electroacupuncture Pretreatment in Alleviating Myocardial Ischemia Reperfusion Injury: Interactions between the Cerebellar Fastigial Nucleus and Lateral Hypothalamic Area.\",\"authors\":\"Qing Yu, Li-Bin Wu, Fan Zhang, Xiao-Tong Wei, Pian-Pian Chen, Shuai-Ya Wang, Mei-Yi Cai, Qi Shu, Liao-Yuan Li, Zi-Jian Wu, Rong-Lin Cai, Ling Hu\",\"doi\":\"10.51507/j.jams.2021.14.6.207\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background: </strong>Myocardial ischemia reperfusion injury (MIRI) is an important mechanism of post-myocardial infarction injury and a main cause of death in patients with ischemic heart disease. Electroacupuncture (EA) pretreatment is effective for the prevention and treatment of MIRI, but mechanisms mediating the effects of cardiovascular disease EA treatments remain unclear.</p><p><strong>Objectives: </strong>To determine whether the lateral hypothalamus (LHA) and the cerebellar fastigial nucleus (FN) are involved in the protective effects of EA stimulation on MIRI.</p><p><strong>Methods: </strong>EA pretreatment was performed for 7 days before the establishment of the MIRI model. ST-segment changes on electrocardiograms were recorded and the Curtis-Walker arrhythmia score was used to evaluate changes in reperfusion injury. Hematoxylin-eosin staining was applied to evaluate the pathological and morphological changes in myocardial tissue. c-fos expression in the LHA and FN was determined by immunofluorescence staining. Glutamic (Glu) and γ-Aminobutyric acid (GABA) levels were measured using a high-performance liquid chromatography-electrochemical method.</p><p><strong>Results: </strong>EA pretreatment reduced ST-segment elevation, arrhythmia scores, and morphological changes in MIRI myocardial cells in rats, and decreased the c-fos protein expression in LHA/FN nuclei. MIRI was associated with an imbalance between GABA and Glu levels, whereas EA pretreatment increased GABA levels and decreased Glu levels in the LHA/FN.</p><p><strong>Conclusion: </strong>FN and LHA are involved in the EA-mediated attenuation of MIRI. Pretreatment with EA plays a protective role in the myocardium by regulating Glu and GABA release in the LHA and FN.</p>\",\"PeriodicalId\":46854,\"journal\":{\"name\":\"Journal of Acupuncture and Meridian Studies\",\"volume\":\"14 6\",\"pages\":\"207-218\"},\"PeriodicalIF\":0.9000,\"publicationDate\":\"2021-12-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Acupuncture and Meridian Studies\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.51507/j.jams.2021.14.6.207\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"INTEGRATIVE & COMPLEMENTARY MEDICINE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Acupuncture and Meridian Studies","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.51507/j.jams.2021.14.6.207","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"INTEGRATIVE & COMPLEMENTARY MEDICINE","Score":null,"Total":0}
Mechanisms of Electroacupuncture Pretreatment in Alleviating Myocardial Ischemia Reperfusion Injury: Interactions between the Cerebellar Fastigial Nucleus and Lateral Hypothalamic Area.
Background: Myocardial ischemia reperfusion injury (MIRI) is an important mechanism of post-myocardial infarction injury and a main cause of death in patients with ischemic heart disease. Electroacupuncture (EA) pretreatment is effective for the prevention and treatment of MIRI, but mechanisms mediating the effects of cardiovascular disease EA treatments remain unclear.
Objectives: To determine whether the lateral hypothalamus (LHA) and the cerebellar fastigial nucleus (FN) are involved in the protective effects of EA stimulation on MIRI.
Methods: EA pretreatment was performed for 7 days before the establishment of the MIRI model. ST-segment changes on electrocardiograms were recorded and the Curtis-Walker arrhythmia score was used to evaluate changes in reperfusion injury. Hematoxylin-eosin staining was applied to evaluate the pathological and morphological changes in myocardial tissue. c-fos expression in the LHA and FN was determined by immunofluorescence staining. Glutamic (Glu) and γ-Aminobutyric acid (GABA) levels were measured using a high-performance liquid chromatography-electrochemical method.
Results: EA pretreatment reduced ST-segment elevation, arrhythmia scores, and morphological changes in MIRI myocardial cells in rats, and decreased the c-fos protein expression in LHA/FN nuclei. MIRI was associated with an imbalance between GABA and Glu levels, whereas EA pretreatment increased GABA levels and decreased Glu levels in the LHA/FN.
Conclusion: FN and LHA are involved in the EA-mediated attenuation of MIRI. Pretreatment with EA plays a protective role in the myocardium by regulating Glu and GABA release in the LHA and FN.
期刊介绍:
The Journal of Acupuncture and Meridian Studies is a quarterly, peer-reviewed journal featuring high-quality studies related to basic and clinical acupuncture and meridian research. It also includes new paradigm of integrative research, covering East–West and traditional–modern medicine. Manuscripts should fall into one of the categories: topical review, original research paper, brief ... click here for full Aims & Scope The Journal of Acupuncture and Meridian Studies is a quarterly, peer-reviewed journal featuring high-quality studies related to basic and clinical acupuncture and meridian research. It also includes new paradigm of integrative research, covering East–West and traditional–modern medicine.