Objective To study the value of magnetic resonance cholangiopancreatography(MRCP) in diagnosing chronic pancreatitis(CP) and pancreatic cancer(PC).Methods MRCP findings in 31 cases of CP and 31 cases of PC were analyzed.Results MRCP characteristics in CP group included :(1) irregular dilatation of the pancreatic duct(87.1%),might across the whole segment of the lesion(93.5%);(2)dilatation of bile duct less(29%);tapering(48.4%) or normal(48.4%) or abrupt interruption(3.2%);(3)stones within the pancreatic duct(25.8%),pseudocyst(29%).MRCP characteristics in PC group included:(1)double-duct sign(67.7%);(2)continuous and smooth dilatation of the pancreatic duct distal to tumor(61.3%),abrupt interruption at the site of the tumor(74.2%);(3)more percentage of bile duct dilatation(74.2%),abrupt interruption of common bile duct at site of tumor(71%).Conclusion MRCP characteristics are of vital importance in differenntial diagnosing CP and PC.

Aged ; Ear, Middle ; Eustachian Tube ; Female ; Foreign Bodies ; Humans

Objective To analyze the characters about anticoagulation EDTA on the platelet aggregation ,and discuss the risk factors about EDTA‐PTCP by analyzing the biochemical parameters .Methods 30 700 EDTA‐K3 blood samples were collected from January 2014 to August 2015 .WBC was performed using Sysmex XN‐3000 and 27cases were identified of EDTA‐PTCP .The blood samples of 27 subjects were recollected and WBC was repeated using EDTA‐K3 and sodium citrate blood ,respectively .Manual platelet counting and smear microscope examination on periphery blood were also performed .Biochemical parameters of 27 subjects with EDTA‐PTCP were compared with 50 randomly selected non EDTA‐PTCP controls .Results Platelet counts in citrated blood were significantly higher than EDTA blood ,the difference was statistically significant(P< 0 .05) ,but similar to manual platelet counting(P>0 .05) .ALT ,Glu and TG in patients with EDTA‐PTCP were significantly higher than normal people ,but HDL was significantly lower than control group ,the difference was statistically significant(P<0 .05) .Conclusion EDTA‐dependent pseudo‐thrombocytopenia varies from people with different disease or using different medicine .It may be relative to hyperglycemia and hy‐perlipidemia .Another approach for rectifying ,changing anticoagulant or manual platelet counting is a better way lead to correctly di‐agnose when EDTA‐PTCP occurred .

Objective To investigate the effect of hepatic stellate cells (HSC) on proliferation and invasion of hepatocellular carcinoma cells and the possible mechanism involved.Methods The HSC was isolated by optiprep method.Methyl thiazolyl tetrazolium(MTT) assay was used to detect the proliferation of hepatocellular carcinoma cells.The effect of invasion was measured with transwell assay.Matrix metalloproteinase-2 (MMP-2) and nuclear factor-κB (NF-κB) were detected by Western blotting.Results HSC was isolated and cultured successfully.HSC promoted the proliferation and invasion of hepatocellular carcinoma cells (proliferation:0.571 ±0.024 vs 0.803 ±0.048,1.271 ±0.044,1.973 ±0.036; invasion:25.2 ± 1.9 vs 35.8 ±3.3,44.4 ±2.7,53.9 ±3.6) (P ＜0.05).MMP-2 (1.32 ±0.22 vs 2.46 ±0.39) and NF-κB(0.85 ±0.09 vs 1.44 ±0.21) were increased obviously in hepatocellular carcinoma cells stimulated by HSC.Conclusions HSC can promote the proliferation and invasion of hepatocellular carcinoma cells.The mechanism might be related to up-regulation of the expressions of MMP-2 and NF-κB.

Adult ; Aneurysm, Dissecting ; Humans ; Male ; Pulmonary Artery

Objective To test and compare CA19-9,CEA with Specific N-Glycans in early-middle stage pancreatic carcinoma serum to find a better tumor marker in early pancreatic carcinoma .Methods To find the difference of N-Glycans structure ,DSA-FACE was performed in 35 early middle stage pancreatic carcinoma patients and 50 healthy human .Meanwhile ,we tested CA19-9 and CEA in the pancreatic carcinoma patients at the same stage.Result The serum N -glycan profiles of pancreatic carcinoma was identified by the DSA -FACE technique.The results showed that between pancreatic carcinoma patients and healthy persons ,there were significant differences in N -glycans.The peak 13,14 and 17 were the most significant peaks which would be most likely picked as a new tumor marker of pancreatic carcinoma .Taking log(p14 ×p17/p13)as indicator of the ROC curve analysis,and the area under ROC curve was 0.799 ±0.050 with 84.9% sensitivity and 68% speci-ficity.Meanwhile,the sensitivity of CA19-9 was 61.2%,the sensitivity of CEA was 11.7%.Conclusion The Peak 13,14 and 17 are the most significant peaks which would be picked as a new tumor marker of pancreatic carcinoma.Espicially,its sensitivity is superior to CA19-9、CEA for early middle stage patients .

Objective To investigate the structural changes in specific serum N-glycans in pancreatic cancer patients and to identify the specific serum maker of pancreatic cancer.Methods The pancreatic cancer patients who visited the Third Affiliated Hospital of Harbin Medical University from June 201 1 to December 2013 were assigned to preoperative serum group (123 cases)and postoperative serum group (78 cases);healthy controls whose serum samples were collected in the Physical Examination Center were selected as control serum group (271 cases).DNA sequencer-aided fluorophore-assisted carbohydrate electrophoresis (DSA-FACE)was used to analyze serum N -glycans and compare them between the three groups.Results The serum N-glycan profiles in pancreatic cancer patients were identified by DSA-FACE.The results indicated that N-glycan peak 8 in preoperative serum group was significantly lower than those in control serum group (t=2.735,P<0.05)and postoperative serum group (P<0.05),but no significant difference was found between the postoperative serum group and control serum group.Conclusion N-glycan peak 8 can be considered as a serum marker of pancreatic cancer.

Objective To explore the clinical features and prevention measures of neonatal pneumonia complicated with pneumothorax.Methods Clinical data of 26 neonatal pneumonia patients complicated with pneumothorax were retrospectively analyzed.Results In 26 cases of neonatal pneumonia complicated with pneumothorax,16 cases(61.4％) were aspiration pneumonia,10 cases(38.5％) were infectious pneumonia.2 cases of not obvious mild cyanosis and dyspnea were given conservative treatment,24 cases were shortness of breath cyanosis,groan,face pale,difficulty in breathing,restlessness,irritability.Breath sounds were reduced or disappear,sound shift,cyanosis to oxygen can not be sustained remission.Blood oxygen saturation were lower grade.One side or both sides of the chest profile were apparent uplift with thoracic puncture exhaust or thoracic closed drainage.24 cases(92.5％) suffered from pneumothorax were cured.2 cases (7.7％) gave up the treatment,including 1 case died and 1 case loss prevention.Conclusion Pneumonia of newborn pneumothorax is secondary to inhalation of most inappropriate,infection,airway pressure,suction.Once found,timely treatment is important.Mild cyanosis can spontaneous remission,cyanosis having oxygen can not be sustained remission.The prognosis of it by thoracic puncture exhaust or closed thoracic drainage is good.Actively control influence during pregnancy,birth and postpartum.Preventing meconium inhalation can reduce the occurrence of neonatal pneumonia complicated with pneumothorax.

0.05).After exposure of U937 macrophages to 11.1 mmol/L,16.7 mmol/L and 33.3mmol/L glucose,the expression of LOX-1 protein was 1.56-,2.26-and 2.96-fold,as compared with that of 5.6 mmol/L glucose group(P

Objective To invstigate the diagnostic value of the detection of telomerase activity in the specimen obtained from CT guided percutaneous transthoracic needle biopsy of lung nodules.Methods The techniques of TRAP silver staining were performed to detect telomerase activity in 43 cases. Results 43 mass cases were studied includirg 32 proved to be primary lung cancer, and 11 benign lesions cytologically and clinically. Telomerase activity was detected as 28(87.5%) of 32 lung carcinomas, whereas in benign lung lesions was 1(9.1%) in 11 cases.Conclusions Detection of telomerase activity in the specimen of lung nodules by CT guided percutaneous transthoracic needle biopsy may be an effective method in the diagnosis of lung cancer and also as tumor marker.