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《医学前沿(英文)》 2011年 第5卷 第1期 页码 86-93 doi: 10.1007/s11684-011-0118-x
Netrin-1 (NT-1) is one of the axon-guiding molecules that are critical for neuronal development. Because of its structural homology to the endothelial mitogens, NT-1 may have similar effects on vascular network formation. NT-1 was shown to be able to stimulate the proliferation and migration of human cerebral endothelial cells in vitro and also promote focal neovascularization in adult brain in vivo. In the present study, we reported the delivery of NT-1 using an adeno-associated virus (AAV) vector (AAV-NT-1) into mouse brain followed by transient middle cerebral artery occlusion (tMCAO). We found that AAV vectors did not elicit a detectable inflammatory response, cell loss or neuronal damage after brain transduction. The level of NT-1 was increased in the AAV-NT-1-transduced tMCAO mice compared with the control mice. Furthermore, the neurobehavioral outcomes were significantly improved in AAV-NT-1-transduced mice compared with the control animals (P<0.05) 7 days after tMCAO. Our data suggests that NT-1 plays a neuronal function recovery role in ischemic brain and that NT-1 gene transfer might present a valuable approach to treat brain ischemic disorders.
关键词: adeno-associated virus angiogenesis gene transfer ischemia middle cerebral artery occlusion netrin-1
Leonurine protects ischemia-induced brain injury via modulating SOD, MDA and GABA levels
Shilei ZHENG, Jingru ZHU, Jiao LI, Shuang ZHANG, Yunfei MA
《农业科学与工程前沿(英文)》 2019年 第6卷 第2期 页码 197-205 doi: 10.15302/J-FASE-2018245
The present study was designed to investigate the protective effects of leonurine, a compound purified from that is active on ischemic rat behavior and cortical neurons, and explore the underlying mechanism. The general rat activity, cortical neuron morphology, superoxide dismutase (SOD), malondialdehyde (MDA), -aminobutyric acid (GABA) and glutamate decarboxylase 67 (GAD67) levels were measured. We found leonurine significantly improve the general activity of rats in an open-field test, which was associated with attenuated neuronal damage induced by ischemia. Moreover, serum SOD activity was significantly greater, MDA level lower in the leonurine group as compared with ischemia group. In addition, GABA content in the cerebral cortex was significantly greater in high-dose leonurine group. Correspondingly, GAD67 protein level coincided with the GABA level. Taken together, our results demonstrated that leonurine attenuated brain injury during ischemia via antioxidative and anti-excitotoxicity effects by targeting GABA and leonurine might become a useful adjuvant neuroprotective agent.
Yao Yao, Rui Zhou, Rui Bai, Jing Wang, Mengjiao Tu, Jingjing Shi, Xiao He, Jinyun Zhou, Liu Feng, Yuanxue Gao, Fahuan Song, Feng Lan, Xingguo Liu, Mei Tian, Hong Zhang
《医学前沿(英文)》 2021年 第15卷 第3期 页码 472-485 doi: 10.1007/s11684-021-0832-y
关键词: neuronal progenitor cells resveratrol cerebral ischemia neuronal differentiation mitochondrial metabolism positron emission tomography
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《医学前沿(英文)》 2012年 第6卷 第1期 页码 22-34 doi: 10.1007/s11684-012-0178-6
Stroke is a personal, familial, and social disaster. It is the third cause of death worldwide, the first cause of acquired disability, the second cause of dementia, and its cost is astronomic. The burden of stroke is likely to increase given the aging of the population and the growing incidence of many vascular risk factors. Prevention of stroke includes—as for all other diseases—a “mass approach” aiming at decreasing the risk at the society level and an individual approach, aiming at reducing the risk in a given subject. The mass approach is primarily based on the identification and treatment of vascular risk factors and, if possible, in the implementation of protective factors. These measures are the basis of primary prevention but most of them have now been shown to be also effective in secondary prevention. The individual approach combines a vascular risk factor modification and various treatments addressing the specific subtypes of stroke, such as antiplatelet drugs for the prevention of cerebral infarction in large and small artery diseases of the brain, carotid endarterectomy or stenting for tight carotid artery stenosis, and oral anticoagulants for the prevention of cardiac emboli. There is a growing awareness of the huge evidence-to-practice gap that exists in stroke prevention largely due to socio-economic factors. Recent approaches include low cost intervention packages to reduce blood pressure and cheap “polypills” combining in a single tablet aspirin and several drugs to lower blood pressure and cholesterol. Polypill intake should however not lead to abandon the healthy life-style measures which remain the mainstay of stroke prevention.
关键词: stroke prevention vascular risk factors cerebral infarction cerebral hemorrhage anti-thrombotic drugs carotid endarterectomy
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《医学前沿(英文)》 2012年 第6卷 第3期 页码 329-331 doi: 10.1007/s11684-012-0211-9
Ischemic postconditioning was defined as rapid intermittent interruptions of blood ?ow in the early phase of reperfusion, which has been found to be protective against renal ischemia-reperfusion injury (IRI) in animal models but not in clinical trials. We describe a case that the allograft renal vein was twisted because of the surgeon’s mistake, which caused the warm ischemia of allograft after reperfusion. The allograft restored blood flow without second reperfusion and cold preservation after 9 min of warm ischemia. The patient was followed up for 3 months and the allograft worked well without complications.
关键词: renal transplantation vein twist ischemia-reperfusion injury
Zhi-Yong ZHANG, Xiao-Ping CHEN, Qi-Ping LU
《医学前沿(英文)》 2010年 第4卷 第3期 页码 317-322 doi: 10.1007/s11684-010-0035-4
关键词: hepatic ischemia-reperfusion digestive tract congestion cholecystokinin vasoactive intestinal peptide salvia miltiorrhiza
Glucagon-like peptide-2 exhibits protective effect on hepatic ischemia-reperfusion injury in rats
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《医学前沿(英文)》 2015年 第9卷 第3期 页码 368-373 doi: 10.1007/s11684-015-0403-1
Glucagon-like peptide-2 (GLP-2) has potent anti-inflammatory effects and protects against experimental ischemia/reperfusion (I/R) injury in pulmonary, intestinal, and myocardial tissue. However, its protective abilities against I/R injury in the liver are unknown. We investigated the potential role of GLP-2 pretreatment on hepatic I/R injury in rats. A total of 24 rats were randomly divided into three groups (n = 8). The first group was the control group; the second group was the vehicle-treated hepatic ischemia/reperfusion (HIR, vehicle saline-treated) group; and the third group was the GLP-2 pretreated I/R (GLP2-IR) group. Each rat in the third group was intraperitoneally administered 5 μg GLP-2 for 5 d before the procedure. A portal triad was created to induce ischemia with a vascular atraumatic clamp. After 40 min, the clamp was released to initiate hepatic reperfusion for 6 h. Blood samples and tissue specimens from the liver were obtained. Alanine aminotransferase, aspartate aminotransferase, and total bilirubin levels significantly increased in the saline-treated HIR group (P<0.001), whereas GLP-2 pretreatment significantly decreased their levels (P<0.01). Our data suggested that GLP-2 pretreatment may have a protective effect on liver I/R injury. However, dose-response studies are necessary to determine the most effective dose.
关键词: ischemia/reperfusion liver glucagon-like peptide-2 alanine aminotransferase
Effect of oxytocin on gastric ischemia-reperfusion injury in rats
ZHANG Wenwen, ZHANG Jianfu, ZHANG Yongmei, XU Ming
《医学前沿(英文)》 2007年 第1卷 第4期 页码 433-437 doi: 10.1007/s11684-007-0085-4
关键词: control significant difference surgical statistical significance Sprague-Dawley
Effect of intestinal ischemia/reperfusion injury on leptin and orexin-A levels
LIN Ji, YAN Guangtao, HAO Xiuhua, ZHANG Kai, GAO Xiaoning, LIAO Jie
《医学前沿(英文)》 2007年 第1卷 第1期 页码 87-92 doi: 10.1007/s11684-007-0017-3
关键词: significant difference intestinal I/R transcriptase-polymerase metabolic central secretory
Buxu Tongyu Granule Alleviates Myocardial Ischemia by Activating Vascular Smooth Muscle Cell Soluble
Shuang Yang,Yixiu Zhao,Xiaoling Cheng,Tingting Zhan,Jiaying Tian,Xue Liu,Chunyue Ma,Zhiqi Wang,Luying Jin,Qian Liu,Yanli Wang,Jian Huang,Jinhui Wang,Yan Zhang,Baofeng Yang,
《工程(英文)》 doi: 10.1016/j.eng.2023.06.009
关键词: Myocardial ischemia Vasomotion Soluble guanylate cyclase Buxu Tongyu Granule
Epidemiology, pathogenesis, and management of coronavirus disease 2019-associated stroke
《医学前沿(英文)》 doi: 10.1007/s11684-023-1041-7
关键词: SARS-CoV-2 ischemic stroke stroke hemorrhagic stroke cerebral venous thrombosis vaccination
Implications of astrocytes in neurovascular coupling
You ZHOU MD, Chang-Kai SUN MD,
《医学前沿(英文)》 2010年 第4卷 第1期 页码 43-45 doi: 10.1007/s11684-010-0019-4
Gut microbial balance and liver transplantation: alteration, management, and prediction
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《医学前沿(英文)》 2018年 第12卷 第2期 页码 123-129 doi: 10.1007/s11684-017-0563-2
Liver transplantation is a conventional treatment for terminal stage liver diseases. However, several complications still hinder the survival rate. Intestinal barrier destruction is widely observed among patients receiving liver transplant and suffering from ischemia–reperfusion or rejection injuries because of the relationship between the intestine and the liver, both in anatomy and function. Importantly, the resulting alteration of gut microbiota aggravates graft dysfunctions during the process. This article reviews the research progress for gut microbial alterations and liver transplantation. Especially, this work also evaluates research on the management of gut microbial alteration and the prediction of possible injuries utilizing microbial alteration during liver transplantation. In addition, we propose possible directions for research on gut microbial alteration during liver transplantation and offer a hypothesis on the utilization of microbial alteration in liver transplantation. The aim is not only to predict perioperative injuries but also to function as a method of treatment or even inhibit the rejection of liver transplantation.
关键词: gut microbial balance liver transplantation ischemia–reperfusion acute rejection
The early signal substances induced by heat stress in brains of mice
WANG Chunxu, WANG Hanxing
《医学前沿(英文)》 2008年 第2卷 第4期 页码 391-395 doi: 10.1007/s11684-008-0075-1
关键词: calcitonin gene-related subsequent ischemia/reperfusion computer cerebrum CGRP excretion
标题 作者 时间 类型 操作
Overexpression of netrin-1 improves neurological outcomes in mice following transient middle cerebral
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期刊论文
Leonurine protects ischemia-induced brain injury via modulating SOD, MDA and GABA levels
Shilei ZHENG, Jingru ZHU, Jiao LI, Shuang ZHANG, Yunfei MA
期刊论文
survival and neuronal differentiation of hypoxia-conditioned neuronal progenitor cells in rats with cerebralischemia
Yao Yao, Rui Zhou, Rui Bai, Jing Wang, Mengjiao Tu, Jingjing Shi, Xiao He, Jinyun Zhou, Liu Feng, Yuanxue Gao, Fahuan Song, Feng Lan, Xingguo Liu, Mei Tian, Hong Zhang
期刊论文
The second short-term warm ischemia after vascular anastomosis did not affect early renal function recovery
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期刊论文
Effect of salvia miltiorrhiza pretreatment on the CCK and VIP expression in hepatic ischemia-reperfusion-induced
Zhi-Yong ZHANG, Xiao-Ping CHEN, Qi-Ping LU
期刊论文
Glucagon-like peptide-2 exhibits protective effect on hepatic ischemia-reperfusion injury in rats
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期刊论文
Effect of oxytocin on gastric ischemia-reperfusion injury in rats
ZHANG Wenwen, ZHANG Jianfu, ZHANG Yongmei, XU Ming
期刊论文
Effect of intestinal ischemia/reperfusion injury on leptin and orexin-A levels
LIN Ji, YAN Guangtao, HAO Xiuhua, ZHANG Kai, GAO Xiaoning, LIAO Jie
期刊论文
Buxu Tongyu Granule Alleviates Myocardial Ischemia by Activating Vascular Smooth Muscle Cell Soluble
Shuang Yang,Yixiu Zhao,Xiaoling Cheng,Tingting Zhan,Jiaying Tian,Xue Liu,Chunyue Ma,Zhiqi Wang,Luying Jin,Qian Liu,Yanli Wang,Jian Huang,Jinhui Wang,Yan Zhang,Baofeng Yang,
期刊论文