Vascular bypass grafting is the most common procedure for ischemic heart disease and peripheral vascular disease. Although synthetic grafts have been developed, replacement of vessels with purely synthetic polymeric conduits often leads to the failure of such graft, especially in the grafts less than 6 mm in diameter, mainly due to the early formation of thrombosis, infection and so on. Tissue engineering is a relatively new discipline that offers the potential to create vascular grafts from autologous cells and biodegradable polymer scaffolds. It has become a promising approach for generating a biocompatible vessel graft and contributing to the long-term patency rate of small-caliber grafts. This review describes the major progress in the tissue engineering vascular grafts, including the seeding cell sources, the biodegradable scaffolds, the construction technologies of tissue-engineered vessels, as well as nanotechnology.

C3 glomerulopathy is a group of diseases with immunofluorescence staining C3 along the glomerular capillary loops deposition,may be accompanied by other immunoglobulin deposition,but C3 sedi-mentary classic way was more than other immunoglobulin and complement activation ingredients ( such as C1q,C4). C3 glomerulopathy is a group of primary glomerular disease and relatively rare. This article mainly reviewed the pathological characteristic of C3 glomerulopathy,clinical manifestation,diagnosis and treatment, in order to improve clinical understanding of C3 glomerulopathy.

Although the interventional radiology, a rapidly expanding medical specialty, has already been widely popularized and generally accepted for many years, it is still facing lots of challenges and turf wars, such as the brain drain, understaffed and the gap between the old and the young. This article attempts to analyze the reasons through investigating the current teaching situation of interventional radiology in medical coUeges and finding out the undergraduates' attitude to interventional radiology, in order to explore possible paths for solving the imbalance between supply and demand of qualified personnel.

OBJECTIVE:To prepare Sophora alopecurodies suppository for treating prostatitis chronica and observe its clinical therapeutic effect METHODS:The content of the total alkaloid in the suppository was determined with acid dye spectrophotometry and the therapeutic effect was observed in comparison with qianliean suppository RESULTS:The linear range of TASa was 0 14～15 4?g/ml,standard oxymatriner's recovery was 101 2%,RSD=0 55% CONCLUSION:This suppository is simple in preparation,reliable in quality-control It is slight in irritation to rectum and effective in clinical use The preparation is worth popularizing in clinical practice

AIM: To elucidate the effects of platelet-activating factor (PAF) on eosinophil activation and the action of dexamethasone or theophylline during this process. METHODS: Eosinophils (EOS) from the peripheral blood of normal subjects were isolated. The hypodense eosinopil (HE) and normodense eosinophil (NE) were studied with electron microscopy. The effects of PAF on eosinophil activation and the action of dexamethasone or theophylline during the above process were measured. RESULTS: Hypodense eosinophil had significantly smaller individual granules than normodense eosinophil had. PAF induced eosinophil peroxidase release, and generated. Eosinophils incubated with 10~(-8) mmol/L PAF and 10~(-5) mmol/L dexamethasone released (101.17?10.32) mg/L eosinophil peroxidase (P

Although the interventional radiology, a rapidly expanding medical specialty, has already been widely popularized and generally accepted for many years, it is still facing lots of challenges and turf wars, such as the brain drain, understaffed and the gap between the old and the young.This article attempts to analyze the reasons through investigating the current teaching situation of interventional radiology in medical colleges and finding out the undergraduates' attitude to interventional radiology, in order to explore possible paths for solving the imbalance between supply and demand of qualified personnel.

Alzheimer's disease(AD),the most common form of dementia,it is lack of effective cure or preventive treatment.Dementias in the elder are an increasing medical,social and economic problems and current treatments are only mildly effective.Recently,amyloid-beta protein(A?) has become a major therapeutic target.A? vaccine treatment can improve cognition in the patients with AD,but adverse events,such as meningencephalitis were observed in clinical study.The passive A? immunotherapy in humans is effective with possible safety.However,patients need to be monitored carefully.

Objective: To evaluate the feasibility ofin vitro balloon dilatation for treating aortic coarctation infants younger than 6 months. Methods: A total of 13 aortic coarctation infants treated in our hospital from 2011-01 to 2015-12 were summarized. The patients were at the mean age of 3.4 months (from 20 days to 6 months), with the mean body weight of 4.8 kg (from 3.6 kg to 6.2 kg) including 9 male. Aortic coarctation segments were resected during the operation and the resected segments were expanded by percutaneous transluminal angioplasty (PTA) via (2-4) times diameter balloon dilatation. The diameters of resected aortic segments were recorded before and after expansion; the change of vascular middle smooth muscle layer was observed by HE staining. Results: There were 8 cases with non-restricted ventricular septal defect (VSD) and 3 of them received staging operation, 2 with atrial septal defect (ASD), 3 with bicuspid aortic valve, 3 with patent ductus arteriosus (PDA) and 1 with pericardial effusion. The resected aortic segments presented that 9 patients had diaphragm type narrow and 4 had tube type narrow. After PTA, the diameters of resected aortic segments were slightly increased for the mean of 0.2 mm and no obvious change was observed; HE staining showed that the vascular inner mucosa was shed, while the middle smooth muscle layer was intact. Conclusion: Balloon dilatation had the poor effect for treating aortic coarctation infants younger than 6 months; surgical procedure could be applied for treating the relevant patients.

BACKGROUND:Until now, musculoskeletal bioengineering used in the orthopedic surgery and regenerative medicine are developing. OBJECTIVE:To summarize the construction strategies for tissue-engineered knee ligaments. METHODS:A computer-based online search was conducted in PubMed to screen the relevant literatures using the terms“knee ligament”AND“tissue engineering”OR“regenerative medicine”. The literature retrieval, data assessment and extraction were performed by both authors independently. The relevant literatures were included through reviewing preclinical and clinical studies to display the preclinical and clinical medicine progresses in the construction strategies for tissue-engineered ligaments. RESULTS AND CONCLUSION:Included 224 literatures focus on the construction strategies for tissue-engineered ligaments, including stem cel therapy, growth factors, biomaterials and scaffolds, and mechanical stimulation pattern. Construction techniques for tissue-engineered ligaments have some potential advantages, such as rapid function recovery, good tenacity, and reduced relapse. However, rigorous and high-level randomized control ed clinical trials are needed for the translation of preclinical results into successful clinical trials.

Objective To study the protection effect of dexmedetomidine and ulinastatin on acute lung in-jury caused by hepatic ischemia reperfusion. Methods 50 rats were randomly divided into 5 groups: the blank group, saline group, the dexmedetomidine group, the ulinastatin group, the dexmedetomidine and ulinastatin group. Ischemia-reperfusion models were established and drugs were administrated through femoral vein. The levels of MDA, SOD and ICAM were detected. Results Compared with the blank group, the rest of the groups of PaO2, pH and SOD activity were significantly lower (P < 0.05), and BE, pathological grading, MDA, ICAM levels were significantly higher (P<0.05). PaO2, pH and SOD activity of ulinastatin group were significantly lower in the phys-iological saline group (P < 0.05), BE, pathological grading, MDA level, ICAM levels were significantly elevated in the physiological saline group (P<0.05). Conclusion Combination of dexmedetomidine and ulinastatin have protection effect on acute lung injury caused by hepatic ischemia reperfusion, its mechanism may be related to in-hibit neutrophil aggregation, improve their antioxidant capacity and inhibition of lipid peroxidation.