Vascular endothelial cell(VEC) is a kind of simple squamous epithelium lined on the inner surface of blood vessels. VEC is an important barrier between the blood and tissue and it also plays a key role in regulating inflammation, thrombosis, endothelial cells mediated vasodilatation and endothelial regeneration. These processes should be controlled by a variety of complex mechanism which requires us to find out. With results of the researches in vascular endothelial cell function, the important roles that microRNA in vascular endothelial cell function draws more and more researchers' attention. MicroRNAs control gene expression in post-transcriptional level and affect the function of endothelial cells. This review focuses on the research progress on regulatory mechanism of microRNA to endothelial cell inflammation, thrombosis, vasodilation and endothelium regeneration.
Abstract: Objective To explore the inhospital mortalityrelated risk factors in the patients undergoing offpump coronary artery bypass grafting (OPCAB). Methods We retrospectively analyzed the clinical data of 215 patients undergoing OPCAB in our hospital from November 2007 to November 2008. There were 171 males and 44 females aged between 40 and 85 years old. Among them, there were 47 patients older than 70 years old. All of them were coronary artery disease (CAD) patients with triple vessel disease. We adopted univarialble analysis and logistic multivariable regression analysis to screen the risk factors for the mortality of OPCAB. Results Six patients died in hospital after OPCAB with a mortality rate of 2.79% (6/215). No renal dysfunction or respiratory failure occurred. The rate of reoperation for bleeding was 4.65% (10/215) and all the 10 patients having undergone reoperation were alive. A total of 209 patients were all alive after 1year follow-up. The results of logistic multivariable regression analysis showed that New York Heart Association (NYHA) Ⅲ and Ⅳ heart function (OR=42.116，95% CI 3.319 to 534.465，P=0.004) and mechanical ventilation duration (OR=1.007，95%CI 1.001 to 1.013，P=0.028) were independent risk factors for inhospital mortality of OPCAB. Conclusion OPCAB is an effective and safe treatment for CAD with triple vessel disease. NYHA Ⅲ and Ⅳ heart function and mechanical ventilation time after OPCAB are the risk factors for OPCAB inhospital mortality, yet, needs further study with large sample.
Abstract:Objective To investigate the expression and significance of Voltage-gated Cl channel-3 （ClC-3） in acute cardiac allograft rejection in rats. Methods The model of heterotopic cardiac allograft of SD to Wistar rats was established. The rats were divided into two groups： control group and cyclosporin A（CsA） treated group （CsA group）. Living span of the transplants in eight rats of each group were observed. Allograft samples were harvested separately on the day 1, 3, 5, 7 after operation （n = 6）. The rejection was evaluated by routine pathological examinations. The myocardial apoptosis by terminal deoxylnucleotidyl transferase mediated-dUTP nick end labeling （TUNEL） method and the local expression of ClC-3 were detected by reverse transcriptase polymerase chain reaction （RT-PCR）. Results The allografts survival time was significantly longer in CsA group compared with that in control group （15.4±5.1dvs. 7.6±1.5d, P〈0.05）. There was lesser pathological changes in CsA group than that in control group. The apoptosis index were significantly higher in control group and the expression of ClC-3 was significantly lower（P〈0.05）. CsA could inhibit the rise of apoptosis index and the decrease of the ClC-3 expression. Conclusion The ClC-3 expression is closely related with the severity of myocardial necrosis and apoptosis index, which indicates that ClC-3 plays a very important role in the necrosis and apoptosis during acute cardiac allograft rejection of rat.
Objective To explore primary surgical treatment experience of typeⅣ hilar cholangiocarcinoma. Methods From April 2008 to April 2011，20 patients with type Ⅳ hilar cholangiocarcinoma were enrolled into the same surgical group in Department of Hepatobiliary and Pancreatic Surgery of West China Hospital of Sichuan University.The intra- and post-operative results were analyzed.Results The total resection rate was 75%，which was consisted of 10 cases of radical excision and 5 cases of non-radical excision.Seven patients received left hepatic trisegmentectomy and caudate lobe resection including anterior and posterior right hepatic duct reconstruction，hepatojejunostomy，and Roux-en-Y jejunojejunostomy.Six patients received enlarged left hepatic trisegmentectomy and caudate lobe resection including left intrahepatic and extrahepatic duct reconstruction，hepatojejunostomy，and Roux-en-Y jejunojejunostomy. Two patients received quadrate lobe resection including two cholangioenterostomies after anterior and posterior right hepatic duct reconstruction，and left intrahepatic and extrahepatic duct reconstruction.After percutaneous transhepatic cholangial drainage （PTCD） and portal vein embolization （PVE），two patients with total bilirubins ＞400 mmol/L received radical excision and non-radical excision，respectively.Three patients only received PTCD during operation due to wide liver and distant metastasis，and two patients received T tube drainage during operation and postoperative PTCD due to left and right portal vein involvement. All 15 patients who received lesion resection survived more than one year， whereas another five patients whose lesions can not been resec ted only survived from 3 to 6 months with the mean of 4.2 months.No death occurred during the perioperative period. Conclusions For patients with type Ⅳ hilar cholangiocarcinoma， preoperative evaluation and tumor resection shall conducted so as to relieve obstruction of biliary tract，otherwise PTCD and PVE prior to the final lesion resection shall be performed.
ObjectiveTo investigate surgical treatment strategies for diffuse coronary artery disease (CAD). MethodsFrom January 2003 to June 2013, 92 patients with diffuse CAD received complete coronary revascularization including coronary artery bypass grafting (CABG)and coronary endarterectomy (CE)in the First Affiliated Hospital of China Medical University. There were 63 male and 29 female patients with their age of 52-81 (68.7±10.5)years. After CE and during follow-up, coronary CT angiography (CTA)was used to assess graft patency, and improvement of patients' cardiac function and angina symptoms were observed. ResultsTarget vessel diameter of the 92 patients was all larger than 1.5 mm after CE. Sixty-three patients (with 69 CE grafts)received intraoperative graft blood flow measurement, showing 59 grafts (85.5%)with satisfactory blood flow[blood flow 13-42 (23.4±12.7)ml/min, pulsatility index (PI)1.6-4.2 (2.1±1.1)]. Six patients (6.5%)had perioperative myocardial infarction (MI), and 4 patients (4.3%)died within 30 days after surgery including 2 patients with acute MI and cardiogenic shock, 1 patient with low cardiac output syndrome and multiple organ failure, and 1 patient with massive cerebral infarction. Seventy-three patients (83%)were followed up for 6-108 (49.3±26.7)months after discharge, and 15 patients were lost during follow-up. During follow-up, coronary CTA showed graft patency of 83.9% after CE. Four patients (5.5%)died including 1 patient with heart failure and pulmonary infection, 1 patient of unexplained sudden death, 1 patient with cerebral hemorrhage, and 1 patient with lung cancer. Five-year survival rate was 87% after CE. Six months after CE, ejection fraction (EF)was significantly higher than preo-perative EF (55.6%±9.7% vs. 50.2%±10.5%, P < 0.05), patients' cardiac function significantly improved, and their angina symptoms were significantly relieved. ConclusionCABG with CE can improve coronary revascularization for patients with diffuse CAD, and short-and long-term results are satisfactory.
【Abstract】ObjectiveTo investigate the changes and significances of the activity of blood coagulation and fibrinolysis in hepatectomy patients accompanied with chronic hepatic disease. MethodsThirtyfive patients who were accompanied with cirrhosis undertook surgery in the second affiliated hospital of Chongqing Medicall University from year 2003 to 2004 were divided into two groups: the first group of 18 cases received hepatectomy and the second group received nonhepatectomy surgical treatment. The (prothrombin time PT), (activated partial thromboplatin time APTT), (thrombin time TT), and the content of (Fibrinogen Fbg) and (Ddimer DD) in the blood drawn from peripheral veins were quantitatively measured by a fullyautomatic chromogenic and immunological assay machine (ACLFutura 9000,USA) at the phases of before operation, right after operation and 24hour after operation, respectively. ResultsAPTT in hepatectomy group increased significantly (P＜0.01) and were much higher than the nonhepatectomy group at corresponding phases (P＜0.01). PT in hepatectomy group increased even more significantly compared with that of preoperation and right after the operation (P＜0.01). The differences of TT at varying phases in hepatectomy group were of no significance (Pgt;0.05). There was also no significant difference of PT, APTT, and TT in nonhepatectomy group at varying phases. ConclusionThe function of blood coagulation is relatively poor and the secondary activity of fibrinolysis is overactivated in hepatectomy patients accompanied with chronic hepatic disease, which indicates a high risk of hemorrhage.
ObjectiveTo explore the inhibition action of valproic acid to inflammatory cells and smooth muscle cells then to find out that valproic acid (VPA) can repress rat thoracic aortic aneurysm or not. MethodsThe model of rat thoracic aortic aneurysm was built through the method of soaking the adventitia of artery using porcine pancreatic elastase (PPE). The rats were divided into three groups:a normal saline blank control group (a C group), an adventitia soaked PPE group (a P group), and adventitia soaked PPE plus intraperitoneal injection by injecting intraperitioneal VPA 200 mg/kg for seven days (a PV group).The animals of the three groups were all using vascular ultrasound to detect blood vessel diameter. Animals were killed after operation to observe the general morphology of vascular aneuysm and do the immunohistochemial, morphological, protein analysis of interleukin 1 (IL-1), interleukin 6 (IL-6), smooth muscle 22 alpha (SM22α), matrix metallopeptidase 2 (MMP-2), MMP-9 and Western blot by drawing animals on the 14th day. ResultsThe vessels diameter in the PV group was narrower than that in the P group (P value<0.05). HE staining, immunohistochemistry and Western blot displayed that the cells in the P group were in disorder arrangement and interstitial disorder while the cells in the PV group maintained better albumin layer. The protein expressions of IL-1, IL-6, MMP-2, and MMP-9 in the PV group decreased except that SM22α increased. ConclusionVPA can inhibit phenothpic transforming of aneurysm inflammatory cells and smooth muscle cells, reduce the levels of cell proliferation, decrease the secretion of matrix metalloproteinases, and depress tumor growth of rat thoracic aorta.
ObjectiveTo systematically review the effetcs of clinical nursing pathway (CNP) in patients with femoral neck fracture. MethodsDatabases including PubMed, The Cochrane Library (Issue 9, 2014), CNKI, VIP and WanFang Data were electronically searched to collect randomized controlled trials (RCTs) about CNP in management of patients with femoral neck fracture from inception to September 2014. Two reviewers independently screened literature, extracted data and assessed the risk of bias of included studies. Then, meta-analysis was performed using RevMan 5.1 software. ResultsA total of 24 RCTs involving 1 852 patients were included. The results of meta-analysis showed that: compared with the control group, the time of hospitalization was decreased (MD=-4.47, 95%CI -5.32 to -3.62, P<0.000 01), the patients' nursing satisfaction was increased (OR=5.52, 95%CI 3.75 to 8.14, P<0.000 01), the achievement rate of knowledge was increased (OR=5.97, 95%CI 3.57 to 9.96, P<0.000 01) and the incidence of postoperative complications was decreased (OR=0.34, 95%CI 0.24 to 0.48, P<0.000 01) in the CNP group. ConclusionCNP can reduce the time of hospitalization, improve patients' nursing satisfaction, improve the achievement rate of knowledge, as well as reduce the incidence of postoperative complications. Due to limited quality and quantity of the included studies, the above conclusion need more high quality studies to verify.