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《医学前沿(英文)》 2013年 第7卷 第3期 页码 301-305 doi: 10.1007/s11684-013-0283-1
Systemic inflammatory response following myocardial ischemia-reperfusion injury (IRI) to a specific organ may cause injuries. Ischemic post-conditioning (IPostC) has emerged as a promising method for myocardial protection against IRI both in experimental and in clinical settings. Enhancement of endogenous nitric oxide (NO) is one of the major mechanisms by which IPostC confers cardioprotection. However, the sensitivity of the diabetic heart to IPostC is impaired and the underlying mechanism is unknown. Adiponectin (APN) is an adipocyte-derived plasma protein with anti-diabetic and anti-inflammatory properties. Plasma levels of APN are decreased in obese subjects and in patients with type 2 diabetes. APN supplementation has been shown to increase NO production and attenuate myocardial IRI in normal (non-diabetic) animals. However, the effect of APN on myocardial injury in diabetic subjects, especially its potential in restoring the sensitivity of the diabetic heart to IPostC has not been investigated. In the current paper, we discussed the possible reasons why the myocardium of diabetic subjects loses sensitivity to IPostC and also highlighted the potential effectiveness and mechanism of APN in restoring IPostC cardioprotection in diabetes. This review proposes to conduct studies that may facilitate the development of novel and optimal therapies to enhance cardioprotection in patients with severe diseases such as diabetes.
关键词: adiponectin ischemic post-conditioning ischemia reperfusion injury diabetes
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《医学前沿(英文)》 2018年 第12卷 第3期 页码 307-318 doi: 10.1007/s11684-017-0547-2
Acute ischemic stroke (AIS), as the third leading cause of death worldwide, is characterized by its high incidence, mortality rate, high incurred disability rate, and frequent reoccurrence. The neuroprotective effects of extract (GBE) against several cerebral diseases have been reported in previous studies, but the underlying mechanisms of action are still unclear. Using a novel rat cortical capillary endothelial cell-astrocyte-neuron network model, we investigated the neuroprotective effects of GBE and one of its important constituents, Ginkgolide B (GB), against oxygen–glucose deprivation/reoxygenation and glucose (OGD/R) injury. In this model, rat cortical capillary endothelial cells, astrocytes, and neurons were cocultured so that they could be synchronously observed in the same system. Pretreatment with GBE or GB increased the neuron cell viability, ameliorated cell injury, and inhibited the cell apoptotic rate through Bax and Bcl-2 expression regulation after OGD/R injury. Furthermore, GBE or GB pretreatment enhanced the transendothelial electrical resistance of capillary endothelial monolayers, reduced the endothelial permeability coefficients for sodium fluorescein (Na-F), and increased the expression levels of tight junction proteins, namely, ZO-1 and occludin, in endothelial cells. Results demonstrated the preventive effects of GBE on neuronal cell death and enhancement of the function of brain capillary endothelial monolayers after OGD/R injury ; thus, GBE could be used as an effective neuroprotective agent for AIS/reperfusion, with GB as one of its significant constituents.
关键词: acute ischemic stroke Ginkgo bilobaextract Ginkgolide B network model neuroprotection
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《医学前沿(英文)》 2014年 第8卷 第1期 页码 118-126 doi: 10.1007/s11684-014-0306-6
Intensive care unit (ICU) is important in the rehabilitation of critically ill patients. In the past decades, many patients who received aggressive treatment in ICU developed sclerosing cholangitis in multiple centers. Sclerosing cholangitis in critically ill patients (SC-CIP) is a relatively new issue. To investigate the causes, clinical manifestation, treatment, and prognosis of SC-CIP, we searched for published cases in the databases of PubMed, Highwire, and Elsevier from 2001 to 2012. Data were extracted using a standard form and retrospectively analyzed. Twelve eligible studies covering 88 patients, with 64 men and 24 women, were enrolled in this analysis. The mean age was 49.8 years. All of the patients recovered from critical illnesses, such as trauma, infection, burn, and major surgeries. High pressure positive end-expiratory pressure (PEEP, peak level at 12.8 cm H2O) was utilized for all patients, with the average duration of 36.3 d. In addition, vasopressor agents were administered in approximately 60% of SC-CIP. A rapid increase in cholestasis and irregular strictures in the intrahepatic bile ducts was observed in the following months. With an average follow-up period of 17.9 months, poor outcomes were observed in 54 patients, including 34 deaths. In conclusion, ischemic injury of the biliary tree, which may be affected by PEEP and/or vasopressor administration, affects cholangiopathic procedure. As a newly discovered type of secondary sclerosing cholangitis, SC-CIP is a severe progressive complication of patients in ICU and should be carefully monitored by clinicians.
关键词: intensive care unit sclerosing cholangitis ischemic injury prognosis systemic review
Interactions between remote ischemic conditioning and post-stroke sleep regulation
《医学前沿(英文)》 2021年 第15卷 第6期 页码 867-876 doi: 10.1007/s11684-021-0887-9
Genetics of ischemic and hemorrhagic stroke in Chinese population
Wei-Li ZHANG MD, PhD, Ru-Tai HUI MD, PhD,
《医学前沿(英文)》 2010年 第4卷 第1期 页码 21-28 doi: 10.1007/s11684-010-0013-x
关键词: genetics ischemic stroke hemorrhagic stroke association study
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《医学前沿(英文)》 2015年 第9卷 第1期 页码 20-29 doi: 10.1007/s11684-014-0371-x
Ischemic stroke is a focal cerebral insult that often leads to many adverse neurological complications severely affecting the quality of life. The prevalence of stroke is increasing throughout the world, while the efficacy of current pharmacological therapies remains unclear. As a neuroregenerative therapy, the implantation of human umbilical cord mesenchymal stem cells (hUC-MSCs) has shown great possibility to restore function after stroke. This review article provides an update role of hUC-MSCs implantation in the treatment of ischemic stroke. With the unique “immunosuppressive and immunoprivilege” property, hUC-MSCs are advised to be an important candidate for allogeneic cell treatment. Nevertheless, most of the treatments are still at primary stage and not clinically feasible at the current time. Several uncertain problems, such as culture conditions, allograft rejection, and potential tumorigenicity, are the choke points in this cellular therapy. More preclinical researches and clinical studies are needed before hUC-MSCs implantation can be used as a routinely applied clinical therapy.
关键词: cellular therapy transplantation human umbilical cord mesenchymal stem cells ischemic stroke
《医学前沿(英文)》 2022年 第16卷 第3期 页码 429-441 doi: 10.1007/s11684-021-0842-9
关键词: ischemic stroke microenvironment induced pluripotent stem cells (iPSCs) positron emission tomography (PET) quantitative proteomics
Bile duct injury repair — earlier is not better
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《医学前沿(英文)》 2015年 第9卷 第4期 页码 508-511 doi: 10.1007/s11684-015-0418-7
Bile duct injury is a common complication of cholecystectomy. The timing of bile duct injury repair remains controversial. A recent review conducted in France reported 39% complications and 64% failure after immediate repair in 194 patients compared with 14% complications and 8% failure after late repair in 133 patients. A national review of 139 consecutive early repairs conducted at five hepatopancreaticobiliary centers in Denmark reported 4% mortality, 36% morbidity, and 42 restrictures (30%) at a median follow-up of 102 months, and only 64 patients (46%) demonstrated uneventful short-term and long-term outcomes. Most patients with bile duct injury present with bile leak and sepsis; thus, early repair is not recommended. Percutaneous drainage of bile and endoscopic stenting are the mainstays of treatment of bile leak because they convert acute bile duct injury into a controlled external biliary fistula. The ensuing benign biliary stricture should be repaired by a biliary surgeon after a delay of 4–6 weeks once the external biliary fistula has closed.
关键词: bile duct injury cholecystectomy laparoscopic cholecystectomy
Loss of monocarboxylate transporter 1 aggravates white matter injury after experimental subarachnoid
《医学前沿(英文)》 2021年 第15卷 第6期 页码 887-902 doi: 10.1007/s11684-021-0879-9
关键词: microRNAs monocarboxylate transporter 1 motor training subarachnoid hemorrhage white matter injury
Risk factors of prognosis after acute kidney injury in hospitalized patients
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《医学前沿(英文)》 2017年 第11卷 第3期 页码 393-402 doi: 10.1007/s11684-017-0532-9
The risk factors, especially laboratory indicators, of prognosis after acute kidney injury (AKI) remain unclear. We conducted a retrospective survey of Chinese People’s Liberation Army General Hospital from January 1, 2012 to December 31, 2012 according to the AKI diagnosis standard issued by Kidney Disease Improving Global Outcomes. The epidemiological features and factors influencing hospital mortality and renal function recovery were evaluated through logistic regression analysis. Among 77 662 cases of hospitalized patients, 1387 suffered from AKI. The incidence rate and mortality of AKI were 1.79% and 14.56%, respectively. Multivariate logistic regression analysis revealed that high AKI stage, age greater than 80 years, neoplastic disease, low cardiac output, increased white blood cell count, and decreased platelet count and serum albumin levels were the risk factors affecting the mortality of AKI patients. Conversely, body mass index between 28 and 34.9 was a protective factor. Increased AKI stage, tumor disease, post-cardiopulmonary resuscitation, and RRT were the risk factors of renal function recovery upon discharge. In addition to traditional risk factors, white blood cell count, platelet count, albumin, and BMI were the predictors of the mortality of AKI patients. No laboratory indicators were found to be the risk factors of renal function recovery in AKI patients.
YAN Jiangtao, SHAO Jiaomei, WANG Daowen, YUE Zhengliang, HUI Rutai
《医学前沿(英文)》 2008年 第2卷 第4期 页码 352-355 doi: 10.1007/s11684-008-0067-1
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.
Progress and perspectives of neural tissue engineering
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《医学前沿(英文)》 2015年 第9卷 第4期 页码 401-411 doi: 10.1007/s11684-015-0415-x
Traumatic injuries to the nervous system lead to a common clinical problem with a quite high incidence and affect the patient’s quality of life. Based on a major challenge not yet addressed by current therapeutic interventions for these diseases, a novel promising field of neural tissue engineering has emerged, grown, and attracted increasing interest. This review provides a brief summary of the recent progress in the field, especially in combination with the research experience of the author’s group. Several important aspects related to tissue engineered nerves, including the theory on their construction, translation into the clinic, improvements in fabrication technologies, and the formation of a regenerative environment, are delineated and discussed. Furthermore, potential research directions for the future development of neural tissue engineering are suggested.
WANG Lin, LIU Yalan, XU Jianbo, TIAN Yuan, WU Heshui
《医学前沿(英文)》 2008年 第2卷 第2期 页码 182-185 doi: 10.1007/s11684-008-0034-x
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
标题 作者 时间 类型 操作
Adiponectin: mechanisms and new therapeutic approaches for restoring diabetic heart sensitivity to ischemic
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期刊论文
Ginkgo biloba extract and Ginkgolide B against oxygen–glucose deprivation/reoxygenation and glucose injury
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期刊论文
Sclerosing cholangitis in critically ill patients: an important and easily ignored problem based on a German experience
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期刊论文
Genetics of ischemic and hemorrhagic stroke in Chinese population
Wei-Li ZHANG MD, PhD, Ru-Tai HUI MD, PhD,
期刊论文
Implantation of human umbilical cord mesenchymal stem cells for ischemic stroke: perspectives and challenges
null
期刊论文
Quantitative proteomics revealed extensive microenvironmental changes after stem cell transplantation in ischemic
期刊论文
Loss of monocarboxylate transporter 1 aggravates white matter injury after experimental subarachnoid
期刊论文
Predication of increased plasma homocysteine level on the prognosis of Chinese patients with first-onset ischemic
YAN Jiangtao, SHAO Jiaomei, WANG Daowen, YUE Zhengliang, HUI Rutai
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
Protective effect of N-acetylcysteine against lipopolysaccharide injury in hepatocytes of neonatal mice
WANG Lin, LIU Yalan, XU Jianbo, TIAN Yuan, WU Heshui
期刊论文