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Objective To discuss the feasibility and clinical value of percutaneous transluminal stenting (PTS) for the treatment of central venous obstruction (CVO) in hemodialysis patients with arteriovenous fistula (AVF).Methods The clinical data of 10 hemodialysis patients with AVF complicated by CVO were retrospectively analyzed.Clinically,all patients presented as swollen hand syndrome.Preoperative or intraoperative digital subtraction angiography (DSA) was performed to determine the obstruction site,and based on the disease condition the appropriate surgical approach was employed.For patients having thrombus formation,catheter-directed thrombolysis (CDT) was carried out first.For patients having severe stenosis or occlusion of veins,pre-expansion with small diameter balloon was employed before PTS.For the remaining patients,PTS was directly performed.All patients were regularly followed up after operation.Results DSA showed that brachiocephalic vein occlusion and/or occlusion or stenosis of subclavian vein,internal jugular vein and superior vena cava were observed in 5 patients who had history of internal jugular vein catheterization,while localized severe stenosis of medial segment of AVF-side subclavian vein was detected in the other 5 patients who had no history of internal jugular vein catheterization.The technical success rate of PTS was 100％ (10/10).A total of 19 stents were implanted in the 10 patients.Seven months after the treatment,one patient developed in-stent re-stenosis,and PTS had to be carried out again.Primary patcncy rates at 6 months and 12 months after the treatment were 100％ (8/8) and 75％ (3/4) respectively.Conclusion In hemodialysis patients with AVF,CVO is mainly characterized by obstructive or severely stenotic lesions.PTS carries higher success rate with satisfactory short-term and mid-term effect,its complications are slight and mild,and the technique is safe and feasible.Therefore,PTS can be used as the preferred treatment method.
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This study was aimed to observe the clinical curative effect of Wen-Yang Jian-Pi (WYJP) decoction for treating hepatitis B cirrhosis patients with refractory ascites.A total of 81 hepatitis B cirrhosis patients with refractory ascites after admission to our hospital were randomly divided into two groups,41 patients were in the treatment group and 40 were in the control group.Patients in both groups received basic treatment,including antivirus,liver-protective,antiinfective and diuretic therapy,as well as albumin supplementation;while the treatment group were additionally given oral traditional Chinese medicine (TCM) of WYJP decoction at the same time.Changes of subjective symptoms,abdominal circumference,urine volume,main hepatic function indexes,and main indexes of B-ultrasound before and after treatment were measured and compared between two groups.Patients in both groups were treated for 3 one-month therapeutic courses,with 3 to 5 day-intervals,after which the curative effect was evaluated.The results showed that the total effective rate in the treatment group was 87.8％,which was significant higher than that of 70.0％ in the control group (P ＜ 0.05).And the treatment group in ascites,urine volume,symptoms,body signs and B ultrasonic improvement were better than those of the control group,with statistical significance (P ＜ 0.05).It was concluded that WYJP decoction has definite therapeutic effect on hepatitis B cirrhosis patients with refractory ascites.
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The Organization for the Prohibition of Chemical Weapons(OPCW)has held 5 OPCW biomedical sample analysis confidence building exercises since 2009,and organized the first official OPCW biomedical proficiency test in February 2016. The Laboratory of Toxicant Analysis,Academy of Military Medical Sciences(AMMSLTA)took part in all tests,received score A in each test and successfully became one of the first OPCW designated laboratories for the analysis of authentic biomedical samples. This pa?per introduces the background about the establishment of OPCW designated laboratories for the analysis of authentic biomedical sam?ples,requirements of designation and experience summarized by AMMSLTA during designation.
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Chromosomal integration of heterologous genes or pathways is preferred over the use of episomal plasmids for its inherently stability and thus more desirable in the industrial setting. However, the position of integration of heterologous genes in the genome influences the expression levels. In combination of high throughput transformation of the Yeast Knock-out Collection (YKO) and FACS analysis, the position effect on heterologous reporter gene gfp was identified across the whole genome in yeast. In total 428 high-expressed sites and 444 low-expressed sites were spotted, providing massive data to analyze patterns and reasons for region dependency of gene expression on the genome-wide scale.
Subject(s)
Gene Expression Regulation, Fungal , Gene Knock-In Techniques , Genes, Reporter , Genome, Fungal , Saccharomyces cerevisiae , GeneticsABSTRACT
Chemical threat is a serious public safety problem we must be facing. And how to effectively deal with it is a priority. Based on the needs of chemical defence in our country, hierarchical monitoring technology platform is proposed. From three aspects of monitoring and early warning, on-site detecting and laboratory confirmation, and the international development needs and trends, the comparation of domestic and foreign equipment construction and development suggestions in our country are discussed and reviewed. Our aim is to establish effective monitoring mechanism for chemical defence, so as to nip the chemical threat in the bud or reduce the chemical hazards to the minimum.
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Objective To study the responsible arteries of duodenal ulcer hemorrhage and the significance of transcatheter arterial embolization.Methods There were 1 7 patients of massive bleeding of duodenal ulcer,in which 1 6 patients were diagnosed and 8 ca-ses were treated by endoscope initially.DSAs were performed at gastr-oduodenal arteries or their ramus in all patients.DSA signs were analysed by two salted docters together.At first the responsible ar-teries for duodenal ulcer hemorrhage were affirmed,and then endo-vascular embolization was performed.Results The responsible arteries for duodenal ampulla ulcer hemorrhage were the ascending duodenal artery(ADA)、the pancreaticoduodenal trunk(PDT)、the supraduodenal artery(SDA)and the retroduodenal artery (RDA).The responsible arteries for descendant duodenum ulcer hemorrhage were the anterior superior pancreaticoduodenal artery (ASPDA)and the posterior superior pancreaticoduodenal artery(PSPDA).The positive rate of bleeding that showed the signs of bleeding was 100%,the s-uccess rate of the operations was 100%,the complete efficiency ra-te of hemostasis was 88.2%,the par-tial efficiency rate of hemostas was 1 1.8%.Conclusion The responsible arteries of duodenal ulcer hemorrhage are multiples,which is important for guiding transcatheter arterial embolization of the responsible arteries of duodenal ulcer hemorrhage accurately.
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Objective To explore the imaging diagnostic value of gastrointestinal stromal tumor(GIST).Methods The retrospective study on GIST proved by operation and pathology in 11 cases was done.There were pneumobarium double contrast examination in 10 cases,CT scanning in 4 cases,superior mesenteric ateriography in 2 cases and fiberoptic endoscopy in 7 cases.Results The locations of tumors at gastric were 7 cases,intestinal 2,lipper and row oseophagus to gastric cardiac in 1,respectively.The detective rate of GIST was 100%,75%,100% and 100% respectively by pneumobarium double contrast examination,CT,arteriography and fiberoptic endoscopy.Conclusion Pneumobarium double contrast examination and fiberoptic endoscopy are important methods for diagnosis of GIST.CT and arteriography can better show the location of tumors and differential diagnosis of benign and malignant of tumor.