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.

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.

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 relationship between the expression of NF-κB and VEGF and the biological behaviors of prostatic carcinoma.Methods Immunohistochemical method was used to examine the expression of NF-κB and VEGF in 40 cases of benign prostatic hyperplasia (BPH) and 53 cases of prostatic carcinoma.Results The positive rates of NF-κB and VEGF in prostatic carcinoma and BPH were 64.2％ and 69.8％,12.5％ and 37.5％ respectively.There are more cases with positive NF-κB and VEGF expression in prostatic carcinoma group than in the BPH group( x2 =24.976,9.655,P ＜ 0.01 ).The expression of VEGF and NF-κB in prostatic carcinomas increased significantly with the decrease of tumor differentiation and advance of the TNM stages(x2 =15.936,18.459;4.316,14.205,P ＜0.01 or P ＜0.05);The expression of VEGF in prostatic carcinoma was positively correlated with NF-κB ( r =0.297,P =0.027 ).Conclusion The expression of VEGF and NF-κB in prostatic carcinoma are highly correlated with each other and may be suggestive to understand the biological behavior of prostatic carcinoma.

We made comparisons between traditional Indian medicine and traditional Chinese medicine from several treatrnent methods of the two medicines,etc.

Amiloride is an epithelial Na+ channel(EnaC)blocker.As a potassium-sparing diuretic,it has been used in clinical practice for decades of years.Studies have shown that many ion channels were semitive to amiloride in the central nervous system,such as acid-sensitive ion channel(ASIC)and Na+/H+ exchanger.These channels have important physiological functions,and paticipate in pathological processes such as cerebral ischemia and tissue acidosis.It has demonstrated that amailoride reduces the effects of ischemia-and acid-mediated neuronal injury by blocking these channels,which may become a novel neuroprotective agent for the treatment of cerebral ischemia.

Objective To analyze the current dietary application of medium-chain triglycerides (MCT) in hospitalized patients,and clarify the appropriate indications and the role of MCT in clinical practice through evidence-based evaluation.Method A retrospective analysis was conducted on 46 cases of hospitalized patients who were administered dietary MCT between January,2012 and December,2013 in Peking Union Medical College Hospital.Results Dietary MCT were utilized in a small but increasing number of patients,who distributed in departments of gastroenterology,pediatrics,pneumology,general internal medicine,and general surgery.37.0％ of the patients had malnutrition,while 56.5％ had hypoalbuminemia.The leading indications of MCT therapy were gastrointestinal dysfunction (21 cases) and lymph circulation disorder (15 cases),while dyslipidemia (5 cases),exocrine pancreatic insufficiency (4 cases),and intractable epilepsy (1 case) served as other indications of MCT administration.Conclusions The indications of current dietary MCT application are approximately consistent with evidence from literature.However,given the scarcity of relevant researches and limited clinical application,further clinical researches with larger samples on dietary MCT are needed to provide more high-quality evidences for guidance of clinical practice.

Since it is one of the hotspots to discover the new knowledge in life science in data-intensive scientific discovery by integrating the biomedical literature and scientific data that can provide an open environment for their interactive operation , the mining of foreign and domestic biomedical literature and integration of scientific data were analyzed , the corresponding systems for different integration methods were investigated , the development trend in biomedical literature and scientific data integration was predicted .

Objective To observe the clinical effect of dexamethasone combined with dezocine on the ultrasound guided interscalene brachial plexus block.Methods Accordance with the random number table,80 patients with ASAⅠ ~Ⅱ undergoing upper extremity operations were divided into four groups,with 20 cases in each group:group A was treated with 0.45% ropivacaine mesylate 20mL;group B was treated with 0.45% ropivacaine mesylate combined with dexamethasone 0.1mg/kg 20mL;group C was treated with 0.45% ropivacaine mesylate combined with dezocine 0.1mg/kg 20mL;group D was treated with 0.45% ropivacaine mesylate combined with dexamethasone 0.1mg/kg and dezocine 0.1mg/kg 20mL.The onset time,maximum block time,analgesia duration and the incidence of adverse reactions were recorded in the four groups.Results The onset time of group C and group D were faster than group A and group B[group C(3.65 ±0.88)min vs.group A(5.60 ±0.88)min,group B(5.35 ±0.81)min,t =7.303, 6.367,all P =0.000;group D(3.30 ±0.80)min vs.group A,group B,t =8.614,7.678,all P =0.000],the maximum block time of group C and group D were faster than those of group A and group B[group C(8.45 ±1.19)min vs. group A(12.75 ±2.05)min,group B(12.65 ±1.90)min,t =8.583,8.383,all P =0.000;group D(7.80 ±0.89)min vs.group A,group B,t =9.880,9.680,all P =0.000].The analgesia duration of the other groups were longer than those of group A[group B(430.50 ±30.86)min,group C(435.00 ±38.46)min,group D(534.50 ±46.73)min vs. group A(314.50 ±33.32)min,t =9.696,10.072,18.388,all P =0.000],group D was the best(group D vs.group B,group C,t =8.693,8.317,all P =0.000),there were no significant differences between group B and group C (group C vs.group B,t =0.376,P =0.708).In the 80 patients,only one case of group C had postoperative nausea and vomiting symptoms,there were no significant differences between the groups(all P >0.05).Conclusion Dexa-methasone combined with dezocine on the ultrasound guided interscalene brachial plexus block is a method with faster onset time,shorter maximum block time,longer analgesia duration,and it has less adverse reactions and better anesthetic effect,and it is more suitable for upper extremity operations.

Objective To explore the application efficacy of scalp nerve block combined with sevoflurane in craniotomy.Methods Fifty-five patients undergoing craniotomy in pingdingshan second people's hospital of henan province from Mar 2013 to Mar 2015 were randomly divided into observation group (n =28) and control group (n =27).The scalp nerve block combined with sevoflurane was performed in observation group and the sevoflurane intravenous inhalational combined with sufentanil was performed in control group.The changes of MAP and HR were observed before induction,5min after induction,skin incision,break the meninges,operation end and 5rmin after catheter removal.The agitation scale after operation,anesthesia duration,awaking time and dosage of sufentanil were compared.Restults MAP and HR at skin incision,break the meninges,operation end and 5min after catheter removal in control group were significantly increased than those before operation,and significantly higher than those in observation group at same stage of operation,with statistically significance differences (P ＜0.05).The agitation scale of observation group was lower than that of control group,with statistically significance difference (P ＜0.05).There was no significance difference between two groups in anesthesia duration (P＞0.05),the awaking time in observation group was significantly shorter than that in control group and the dosage of sufentanil was significantly reduced in observation group (P＜0.05).Corclusion Scalp nerve block combined with sevoflurane used in craniotomy has advantages in stable vital signs,rapid awaking,less dosage of sufentanil and lower score of agitation,which is suitable for clinical application.