Objective:To evaluate the value of 64-slice CT portal venography(CTPV)in demonstrating portal system and its collaterals in portal hypertension.Methods:50 cases of portal hypertension were included in the study and undergone upper abdomen examination with 64-slice CT,image post-processing techniques such as MIP,MPR and VR were applied to display the portosystemic collaterals of portal venous system.Results:CTPV simultaneously depicted fourth or fifth branches of the intrahepatic portal veins and provided images of entire portosystemic collaterals,on CTPV images,left gastric varices were seen in 48 patients(96%),esophygeal and/or fundic varices in 46(92%),paraesophageal varices in 41(82%),shnrt gatric veins or posterior gastric veins in 19(38%),shunt between spleen/gastric-renal vein in 14(28%),abdominal wall and paraumblical varices in 20(40%),retroperitioneal varices in 19(38%),portal sponge degeneration in 8(16%).Conclusion:CTPV can much more clearly demonstrate the collateral vessels in patients with cirrhosis and portal hypertension.An understanding of the varied appearances of acquired abnormalities of the portal venous system will allow more definitive diagnosis and help avoid false diagnosis of disease,and may play a significant role in marking a clinical treatment plan.

Objective:To analyse the findings of MRI and CT in the diagnosis of spine metastases in 52 cases,and compare their sensitivity and specificity,in order to increase the early diagnosis rate of spinal metastases.Methods:The most common sources of skeletal metastases were carcinomas of lung,breast,nasopharynx.MRI and CT were performed in 52 patients with metastatic tumor.The detectability for vertebral metastasis was compared between the two modalities.Results:Of the 52 cases,there were destructions of 176 vertebral bodies,76 lesions of spinal canal involvement,68 paravertebral soft tissue.masses and pathological fractures of 47 vertebral bodies.In the cases of stage Ⅰ spinal metastases:21 were detected by MRI and nothing was detected by CT.In the cases of stage Ⅱspinal metastases:86 were detected by MRI;52 were detected by CT.In the cases of stage Ⅲ spinal metastases:68 were detected by MRI;61 were detected by CT.The sensitivity of spinal metastases by MRI(99.4%) higher than CT(64.2%).MRI demonstrated decreased signal intensity(86.9%)and other abnormal signal intensity(13.1%)on T1WI and increased signal intensity(60.8%)and other abnormal signal intensity(39.2%)on T2WI.Conclusion:The sensitivity and specificity of MRI is higher than that of CT.Two methods are complementary to each other,so MRI combined with CT can improve the sensitivity and accuracy in the diagnosis of spinal metastases.

BRAF gene has the highest mutation rate and plays an important role in the occurrence,development,invasion and metastasis of melanoma.The frequency of the mutation varies in different clinical phenotypes,clinical pathology classifications and stages of malignant melanoma,which indicate a certain association of BRAF gene with the growth and prognosis judgment in malignant melanoma.BRAF gene mutation is the new direction of treatment in malignant melanoma molecular target therapy.

Objective To explore the feasibility of constructing literature exchange platform between TCM libraries of Across-Straits, focusing on current situation of TCM libraries. Methods Originally scattered,multivariant, and isomeric TCM literature resources were united to one whole through simple and effective mode for the purpose of increasing literature usage. Results The exchange platform between TCM libraries of Across-Straits was established. Conclusion This platform was suitable for scientific research, teaching,clinical practice and science popularization.

Objective To explore the effect of oxidative stress on intermittent hypoxia induced-hip-pocampal injury in rats. Methods 30 adult male Sprague-Dawley rats were random divided into three groups ( 10 rats in each group), control group( CON group), intermittent group( IH group), and melatonin group( MEL group). The levels of MDA and SOD were detected by colorimetric method, and RT-PCR was used to examine the mRNA levels of the Cu/ZnSOD, GPx, CAT in hippocampal tissues. Results The level of MDA in IH group was ( 1. 68 ±0. 23) μmol/g, and it was obviously higher than that in control group (1.25±0.14)μmol/g and MEL group(1.35 ±0.18) μmoL/g ( P ＜0.05, P ＜0.01). In IH group, the activity of SOD and the mRNA levels of the Cu/ZnSOD,GPx and CAT were 43.01 ±4. 96 103NU/g, 0.25±0. 02,0. 34 ±0. 09,0. 38 ±0. 03 respectively, which were significantly lower than those in control group(61.12 ±5.68 103NU/g protein,0. 48 ±0.06,0. 55±0.07,0.57 ±0.04) and MEL group (55.98 ±4.65 103 NU/g,0.43 ± 0.08,0.54 ± 0.05,0.53 ± 0.07 ) ( P ＜ 0.05, P ＜ 0. 01 ). Conclusion Intermittent hypoxia can induce hippocampal injury in rats by oxidative stress, and melatonin can inhibit intermittent hypoxia induced-oxidant stress, so it can protect intermittent hypoxia induced-hippocampal injury in rats.

Adult ; Arsenic Poisoning ; Arsenicals ; Humans ; Indium ; Male ; Occupational Exposure ; Young Adult

The decontamination work of the clean operating room counts for much in hospital.It is an important link to keep surgical operation from indoor cross infection.This paper mainly carries on the relevant study to the hospital decontamination management work of the clean operating room from three aspects:(1) the decontamination management work of the clean operating room,(2) the work method of the clean operating room decontamination,(3) the decontamination procedure and maintenance management of the clean operating room.

Sarcopenia is a syndrome characterized by progressive and generalised loss of skeletal muscle mass and strength with a risk of adverse outcomes such as physical disability, poor quality of life and increasing risk of infection and mortality. Inadequate intake of nutrients (especially protein) might block muscle protein synthesis, and accelerate age-related sarcopenia progress. Age-related decline in skeletal muscle mass as well as muscle functions has been regarded as major health issues in elderly people. The domestic and foreign literature related to impact of nutritional intervention on muscle protein synthesis and muscle functions in elderly people were retrieved to evaluate the effect of nutritional intervention on muscle protein synthesis and muscle functions in elderly people.

Objective To evaluate the dietary risk factors and rational nutritonal intervention for gout and hyperuricemia.Methods PubMed,EMBASE,OVID,Cochrane Library,China National Knowledge Infrastructure (CNKI),and Chinese Wanfang Database were searched for literature related to dietary risk factors and medical nutritonal intervention for gout/hyperuricemia from January 2000 to December 2015.Strict screening of the searched literature was performed based on inclusion and exclusion criteria.The bias risk evaluation tool recommended by the Cochrane Handbook and the Newcastle-Ottawa Scale (NOS) scale were used to assess the quality of included literature.With odds ratios (OR) of gout/hyperuricemia for subjects with different dietary preferences as the main effect indicator,a meta-analysis was conducted,with data collected from literature and summarized by RevMan 5.1 software.Results Nine studies were included eventually.Compared with subjects with lowest intake of red meat,seafood,alcohol,sweented soft drinks or natural juice,the OR for gout/hyperuricemia among subjects with highest intake of these foods was 1.39 (95％ CI:1.18-1.63,P ＜0.0001),1.59 (95％ CI:1.33-1.90,P＜0.00001),3.14 (95％ CI:2.17-4.53,P＜0.00001),1.69 (95％ CI:1.17-2.43,P =0.005),and 1.46 (95％ CI:1.18-1.80,P =0.000 5),respectively.In contrast,compared with subjects with lowest intake of dairy products,vegitables (containing purine-rich vegetables) or coffee,the OR for gout/hyperuricemia among subiects with highest intake of these foods was 0.50 (95％ CI:0.40-0.64,P＜0.00001),1.01 (95％ CI:0.85-1.19,P=0.95),0.48 (95％ CI:0.30-0.78,P =0.003),respectively.Conclusions Patients with gout or hyperuricemia should avoid or restrict the intake of high-purine animal foods (especially red meat and seafood),alcohol,high fructose or corn syrupsweetened foods,while abstinence of purine-rich vegetables is not required.Regular intake of dairy products and coffee is recommended for such patients.

Myelodysplastic syndromes (MDS) is one of clonal disorders of hematopoietic stem cells.Cytogenetic,molecular genetic and epigenetic aberrances are critical to diagnosis,prognosis and treatment of MDS.5q-,-7/7q-and 20q-are the most frequent cytogenetic aberrance in MDS.Fusion genes,genetic mutation and deletion are the most important mechanisms for every subtype of MDS.Aberrant methylation plays an essential role in both initial and secondary MDS.All these aberrances are very significant for the development and transformation of MDS.Genetic and epigenetic alterations are new targets for MDS diagnosis and treatment.