Objective To investigate the effects of micro alcohol on serum enzymes in vitro and vitro Methods Serum alcohol and ALT?AST?GGT?ALP?CK?LDH?AMY?LIPA activities were measured before and after alcohol consuming (1 ml/kg) in 14 volunteers Meanwhile, the direct inhibitory effects of alcohol on the serum enzymes were studied by comparing the serum enzyme activities with or without alcohol Results Alcohol consuming could depress the serum AST activity from (24 04?3 66) U/L to (22 25?3 27) U/L and LIPA activities from (155 86?93 51) U/L to (128 35?84 85) U/L, whereas increase the other serum enzyme activities, but only serum AMY were found statistic difference [from (48 78?10 66) U/L to (55 50?12 60) U/L] The inhibitory effects of alcohol on all the measured enzymes were found in vitro studies Conclusions Alcohol could obvious influence the serum enzyme activities both in vivo and vitro Avoiding the contamination of alcohol during sample collection and routine laboratory work is necessary

Objective To evaluate the effect of combination splenectomy and endoscopic varices ligation in comparison with Hassab procedure in the treatment of portal hypertension. A prospective, controlled study was carried out on Splenectomy with EVL in comparision with portoazygous disconnection--the Hassab procedure to assess whether SEVL can achieve better results in the treatment of portal hypertension. Methods From Jan 1999 to June 2002, 103 cirrhotic patients with portal hypertension were admitted. These patients were randomized into two groups. Group A were treated by splenectomy combined with EVL(53 cases) , and group B were treated with Hassab procedure(50 cases). Results In both groups, there was a significant postoperative decrease in free portal pressure, the velocity and volume of portal flow (all P0.05). Portal vein thrombosis developed in 7 cases (13%) in group A, and in 14 cases (28%) in group B, P

Objective To evaluate a thrombolytic system of portal vein port-catheter kit (PC) in the treatment of portal vein thrombosis (PVT). Methods In this study, 42 PVT patients with liver cirrhosis and portal hypertension after splenectomy from 2005 to 2007 were divided into two groups. In group A (20 eases) thrombolysis was administered through the PC device. Urokinase at the dosage of 1000 U?kg-1?h-1 was given for a consecutive 3 -6 days through the PC, and then the therapy was converted to 100 AxaIU/kg of low molecular heparin twice a day for 7 days subcutaneously. In group B, the thrombolysis was performed on 22 patients through peripheral veins. The therapy was same as in group A except for that the urokinase dosage was doubled. The complete thrombolysis rate, the effective thrombolysis rate, the time of thrombolysis, the long-term recurrence rate and the incidence of complication were compared between the two groups. Results The complete thrombolysis rate and the effective thrombolysis rate in group A were 75%, 90% respectively, compared with that of 41%, 59% respectively in group B. The significant differences in the complete thrombolysis rate, the effective thrombolysis rate, the time of thrombolysis and the incidence of complication were found between the two groups, while the thrombolysis recurrence rate had no significant difference between the two groups. Conclusion PC regime is an effective and safe method for the treatment of portal vein thrombosis.

Objective To assess the value of thickness and arterial resistive index (RI) of wrist synovium in differentiation from activity to non-activity of rheumatoid arthritis (RA). Methods Ninety-two clinically confirmed RA patients underwent high frequency ultrasonography. Maximum thickness and arterial RI of the wrist synovium were measured in active and nonactive stage. Results Thickened synovium was found in 75 of 92 patients. Color signal in the synovium was detected and then RI was measured in 67 patients, including 31 in active stage and 36 in nonactive stage. The wrist synovium thickness of 67 patients was (2.97±1.49) mm and arterial RI was 0.74±0.17. RI decreased significantly in patients in active stage compared with that in nonactive stage (P<0.001). Conclusion Arterial RI measurement with high frequency ultrasonography may be served as an objective marker of synovial membrane disease in RA. The thickness of synovium cannot predict the activity of RA.

Objective To evaluate pathogens and antimicrobial resistance of pathogens causing refractory pneumonia in children.Methods Children with refractory pneumonia who admitted to a hospital between May 2008 and December 2014 were performed bronchoscopy,and bronchoalveolar lavage fluid (BALF)were performed bacterial culture and antimicrobial resistance testing.Results 1 693 patients were recruited in the study,273 bacterial isolates were isolated from BALF speci-mens of 226 children,gram-positive bacteria accounted for 38.10% (104/273 ),the main gram-positive bacteria were Streptococcus pneumoniae (n=71)and Staphylococcus aureus (n=23);gram-negative bacteria accounted for 58.24%(159/273),including 44 isolates of Haemophilus parainfluenzae ,28 Klebsiella pneumoniae ,19 Escherichia coli ,and 17 Pseud-omonas aeruginosa ;10 isolates of fungi were also detected,8 of which were Candida albicans .The sensitivity of Streptococ-cus pneumoniae to quinolones,ceftriaxone and cefotaxime were high.Methicillin-resistant Staphylococcus aureus (MRSA) positive rate was 26.32%.ESBLs-producing rate of Haemophilus parainfluenzae and Klebsiella pneumoniae was 32.72% and 62.96% respectively.Conclusion The major pathogens causing refractory pneumonia were Streptococcus pneumoniae and Haemophilus parainfluenzae ,empirical treatment should be conducted accordingly,antimicrobial resist-ance should be considered if therapeutic effect is poor,and targeted therapy should be performed according to cultured re-sults and antimicrobial susceptibility testing result.

Objective To summarize the experience of adjuvant therapy for primary hepatocellular carcinoma. Methods 316 cases of operable hepatocellular carcinoma were divided into three groups. Only hepatectomy were performed in group one (21 8cases).Preopemtive adjuvant TACE were done in group two (52 cases). Preoperative adjuvant TACE and postoperative trans-portal vein chemotherapy were done in group three (46 cases), which was named hepatectomy sequencing two vessel therapy. Results 1, 3 and 5 year survival rote were 51.2 %, 30.0 % and 20.5 % respectively in group one, 57.2 %, 43.0 % and 31.5 % in group two, 84.0 %, 62.5 % and 51.0 % in group three. The postoperative disease-free survival rate in group three was significantly higher than that in group one and group two (P ＜0.05). Conclusion Hepatectomy sequencing two vessels therapy in perioperative period might improve the survival rate, which can prevent and delay the incidence of recurrence and may improve the effect of liver resection.

Objective To investigate the distribution of pathogens isolated from clinical samples and the resistance to the com‐mon antimicrobial agents .Methods Of the 3 745 children ,Hand‐foot‐mouth disease was the most prevalent disease with 1 397 (37 .30% ) cases ,followed by the bronchopneumonia ,rotavirus enteritis and bacterial intestinal infection ;784 strains were isolated from the samples mainly including Haemophilus parainfluenzae (16 .20% ) ,Streptococcus pneumoniae (14 .92% ) ,Moraxella ca‐tarrhalis (12 .88% ) ,Staphylococcus aureus (10 .59% ) and Salmonella enterica(10 .8% ) ;The positive rate of Methicillin‐resistance Staphylococcus aureus(MRSA) was 27 .50% and the ESBLs producing Escherichia coli and Klebsiella pneumoniae were 46 .43%and 81 .40% ,and two or more pathogens could be isolated from sputum .Conclusion Haemophilu ,Streptococcus pneumonia and Moraxella catarrhalis are the main bacterial pathogens in the department of infectious .There is a certain resistance to the common antimicrobial agents .It is important for us to focus on the pathogens and we should pay more attention to the control the resistance of the bacteria .

Microthrombosis may be involved in the pathogenesis of cardiac microangiopathy due to diabetes. Recent studies have shown that fibrinogen-like protein 2 (fgl2) plays a pivotal role in microthrombosis in viral hepatitis, acute vascular xenograft rejection and cytokine-induced fetal loss syndrome. The current study was designed to examine the expression of fgl2 in microvascular endothelial cells and investigate the effects of microthrombi due to fgl2 on cardiac function and structure in rats with type 2 diabetes. Following induction of type 2 diabetes, 24 rats were observed dynamically. Fgl2 expression and related cardiac microthrombosis were examined. Local or circulating TNF-α was measured. Coronary flow (CF) per min was calculated as an index of cardiac microcirculation. Cardiac function and morphology were evaluated. It was found that Fgl2 was highly expressed in cardiac microvascular endothelial cells of rats with type 2 diabetes, which was promoted by local or circulating TNF-α. The Fgl2 expression was associated with cardiac hyaline microthrombosis. In parallel with the fgl2 expression, CF per min, cardiac diastolic or systolic function and cardiac morphology were aggravated to some extent. It was concluded that in rats with type 2 diabetes, microthrombosis due to fgl2 contributes to the impairment of cardiac diastolic or systolic function and morphological changes.

BACKGROUND: Stem cell differentiation potential is strongly correlated with culture condition. The alteration in scaffold material surface function, three dimensional (3D) structure, and addition of growth factors can control stem cell proliferation and differentiation.OBJECTIVE: To develop 3D macroporous scaffolds with optimal porosity and porous structure to provide a microenvironment that promotes the growth of multi-potent stem cells.DESIGN: Repetitive measurement.SETTING: Department of Anatomy, College of Basic Medicine, Guangzhou University of Chinese Medicine.MATERIALS: Healthy adult SD rats were provided by the Experimental Animal Center in Guangzhou University of Chinese Medicine. Chitosan and basic fibroblast growth factor (bFGF) were purchased from Sigma Corporation (St. Louis,MO).METHODS: The experiment was performed at the Department of Anatomy, College of Basic Medicine, Guangzhou University of Chinese Medicine from March 2003 to December 2006. Using a freeze-drying method, 3D macroporous scaffolds made of different ratios of chitosan-gelatin with bFGF were fabricated that could release bFGF with controlled porosity and porous structure. Bone marrow was obtained from the femur and tibia of SD rats, and mesenchymal stem cells (MSCs) were isolated, cultured and seeded on the scaffolds with bFGF. MSCs seeded on scaffolds with no bFGF served as control. The procedure during experiment was accorded with animal ethical requirements.MAIN OUTCOME MEASURES: 3D structure and release performance of the scaffolds were observed by ELISA and scanning electron microscope; the effect of 3D macroporous scaffolds that released bFGF on MSC growth and viability were observed by HE staining, MTT, cell counting and SEM.RESULTS: There was no significant difference in pore size between scaffolds with and without bFGF (P ＞ 0.05). Scaffolds with bFGF significantly improved MSC survival rate, promoted cell adhesion, proliferation, and viability compared with scaffolds without bFGF (P ＜ 0.05).CONCLUSION: The results suggest that 3D macroporous scaffolds with bFGF release improve MSC survival on scaffolds,and lay a foundation for its application in tissue engineering.

To develop a more efficient antithrombotic way after coronary artery bypass grafting (CABG), the anticoagulant effects were compared of human tissue factor pathway inhibitor (TFPI) gene transfection and aspirin oral administration (traditional method) on vein grafts. An eukaryotic expression plasmid pCMV-(Kozak) TFPI was prepared. Animal model of carotid artery bypass grafting was constructed. In operation, endothelial cells of vein grafts in TFPI group and empty plasmid control group were transfected with pCMV-(Kozak) TFPI and empty plasmid pCMV respectively, while no transfection was conducted in aspirin control group. After operation, aspirin (2 mg.kg(-1).(-1)) was administered (i.g.) in aspirin control group. Three days later, grafts (n=10) were harvested for RT-PCR, Western blotting and immunohistochemical analyses of exogenous gene expression and for pathological, scanning electron microscopic observation of thrombus. Thirty days later, the patency rates of remnant grafts (n=10) were recorded by vessel Doppler ultrasonography. Human TFPI gene products were detected in gene transferred vein grafts. Three days later, thrombi were found in 7 animals of aspirin control group and in 8 animals of empty plasmid control group, but in only 1 of TFPI group (P<0.01). Thirty days later, 5 grafts were occluded in empty plasmid control group, but none of grafts was occluded in the other groups (P<0.05). The endothelial surfaces of grafts in both of the control groups were covered with aggregated erythrocytes and platelets, and it were not seen in TFPI group. It was suggested that the anticoagulant effects on vein grafts of human TFPI gene transfection are better than those of aspirin.
Administration, Oral ; Anticoagulants/*metabolism ; Aspirin/*administration & dosage ; Aspirin/metabolism ; Coronary Artery Bypass ; Disease Models, Animal ; Lipoproteins/*metabolism ; Plasmids/metabolism ; Tissue Transplantation/*methods ; Transfection ; Ultrasonography, Doppler/methods ; Veins/*transplantation ; Venous Thrombosis/metabolism