AIM The purpose is to study the effect of Di p Cl benzoyl linesinine on experimental arrhythmias. METHODS The models used were caused by aconitine, ouabain and CaCl 2 repectively. RESULTS Di p Cl benzoyl linesinine 5 mg?kg -1 could increase the threshold dose of ventricular ectopic(VE), ventricular tachyacardia(VT), ventricular fibrillation(VF) and cardiac arrest(CA) caused by aconitine in rats and that by ouabain in ginuea pigs; delay the onset time of arrhythmia and decrease the incidence of VE,VF and CA induced by CaCl 2 in rats. CONCLUSION Di p Cl benzoyl linesinine possesses extensive effects of antiarrhythmia on ventricle.

Aim To investigate the effects of Liensinine on platelet aggregation and coagulation function in rats,as well as the effect on experimental thrombosis.Methods Inhibition rates of platelet aggregation for Liensinine in vivo were determined by the model of platelet aggregation induced by adenosine diphosphate.Coagulation time of mice was measured by capillary vessel method,and bleeding time of mice was measured by tail-cutting method.The effects of Liensinine were also evaluated on prothrombin time(PT),activated partial thromboplastin time(APTT)and thrombin time(TT).The model of artery-vein bypass thrombosis and Chandler's model were established to observe the effect of Liensinine.Results The result showed that Liensinine 5 and 10 mg?kg-1 had significant effect on inhibition of platelet aggregation and markedly prolonged bleeding time,coagulation time,PT,APTT and TT.Liensinine 5 and 10 mg?kg-1 inhibited the artery-vein bypass and Chandler's thrombus in different degree,reduced the thrombus weight significantly (either wet ordry).Conclusion Liensinine exerts remarkable effect against thrombosis and possesses strong effect against platelet aggregation and coagulation.

Objective To summarize ultrasonograph changes and to investigate the diagnositic value of ultrasonography in pa‐tients with thrombophlebitis in superficial dorsal vein of penis .Methods The ultrasonograph finding and clinical data in 19 patients with thrombophlebitis in superficial dorsal veins of penis diagnosed by clinic were retrospective analyed .Results Compared with normal volunteers ,the internal diameter of patients′venae dorsales penis superficiales were significantly widened (P<0 .01) .Low level echoes were found in superficial dorsal vein of penis and showed strip ,arborization ,semiring and circular shape .It mainly hap‐pened in root segment(63 .2% ,12/19) ,and coronary sulcus was the second one(26 .3% ,5/19) .There were no significant difference in left and right side (P>0 .05) .Conclusion Ultrasonograph was a practicable way to examine dorsal veins of penis and an effec‐tive way for the diagnosis of thrombosis ,which could accurately diagnose thrombophlebitis in superficial dorsal veins of penis .

Objective To study the effects of sinomenine on scavenging oxygen free radical and anti-lipid peroxidation in vitro. Methods Superoxide anion free radical(O_2~?) induced by the auto-oxidation of pyrogallol and hydroxyl free radical(?OH) induced by Fenton system were determined by spectrophotometry.The inhibition on homogenate and mitochondrial lipid peroxidation,malondialdehyde(MDA),of rat liver induced by VC-Fe~(2+) system was measured by thiobarabituric acid(TBA) colorimetric method.Results Sinomenine could significantly scavenge O_2~? and ?OH,it's EC_(50) were 1.35 and 0.136 mg/mL respectively.Sinomenine could also remarkably inhibit the lipid peroxidation of rat liver homogenate and mitochondria induced by auto-oxidation and VC-Fe~(2+) system.The scavenging and inhibitory effect exhibited in a concentration-dependent manner.Conclusion The results indicate that sinomenine possesses the effect of scavenging oxygen free radicals and anti-lipid peroxidation,which shows the protection of liver mitochondria.

Aim To explore the effect of adenylate cyclase(AC) antagonists SQ22536 and agonist forskolin on acute lung injury induced by lipopolysaccharide.Methods ICR mice were randomly divided into normal saline control group(N group), model group(group L), dexamethasone group(group D),AC antagonists s(group SQ) and AC agonist group(group F).The ALI mouse model was induced by instilling intratracheally with LPS(2 mg·kg-1), and 6 h later, the lung tissue and alveolar lavage fluid(BALF) were harvested, pathological changes in lung were observed, white blood cell and neutrophil, albumin content in BALF and myeloperoxidase(MPO) activity of lung tissue homogenate were determined, and tumor necrosis factor α(TNF-α), interleukin-1β(IL-1β), interleukin 6(IL-6) and cAMP content in lung homogenates were detected by ELISA.Results Compared with normal saline group, a large number of neutrophils infiltrated around the pulmonary vessel and airway 6 h after LPS intratracheal instillation in model group.White blood cells and neutrophils and protein content increased in BALF;MPO activity and cAMP levels increased in lung tissues.In the lung tissue TNF-α and IL-6, IL-1β content increased, compared with model group.Forskolin could improve the pathological changes of lung tissue, reduce the total number of leukocytes, number of neutrophils and protein content in BALF, and reduce MPO activity and TNF-α content in lung tissue, at the same time it increased the cAMP content;SQ22536 had no significant effect when compared with model group.Conclusion AC agonists have protective effects on LPS-induced acute lung injury in mice, and the mechanism may be related to elevating cAMP levels, inhibiting neutrophil adhesion and chemotaxis and reducing inflammatory factor levels.

OBJECTIVE: To evaluate the effects of CLEC5A expression level on cell proliferation, migration and invasion and epithelial-mesenchymal transition (EMT) in hepatocellular carcinoma (HCC) and explore the role of CLEC5A in the tumorigenesis and progression of HCC. METHODS: The expression level of CLEC5A was detected in 50 pairs of HCC and adjacent tissues using immunohistochemical staining, and its association with clinicopathological parameters of HCC patients was analyzed. Cultured HCC cell line SK-HEP-1 was transfected with a lentiviral vector overexpressing CLEC5A, and the transfection efficiency was verified using real-time fluorescence quantitative PCR and Western blotting. The changes in proliferation, migration and invasion abilities of the transfected cells were analyzed using CCK-8, 5-ethynyl-29-deoxyuridine (EdU) and Transwell assays, and EMT of the cells was determined using Western blotting. RESULTS: The protein expression level of CLEC5A was significantly lower in HCC tissues than in the adjacent tissues (P < 0.001). The expression level of CLEC5A was significantly correlated with tumor size (P=0.008), tumor number (P=0.010), histological differentiation (P=0.016), microvascular invasion (P=0.024) and BCLC stage (P=0.040). In SK-HEP-1 cells, overexpression of CLEC5A obviously inhibited the cell proliferation, migration and invasion and reversed EMT phenotype of the cells. CONCLUSION CLEC5A is a potential HCC suppressor gene and may serve as a promising therapeutic target for HCC.
Humans ; Carcinoma, Hepatocellular/genetics* ; Epithelial-Mesenchymal Transition ; Liver Neoplasms/genetics* ; Cell Proliferation ; Cell Differentiation ; Receptors, Cell Surface/genetics* ; Lectins, C-Type/genetics*

OBJECTIVETo explore the change of serum gamma-glutamyltransferase (GGT) and its diagnosis value in chronic hepatitis B (CHB) patients with different degrees of liver damage.

METHODSAlanine-aminotransferase (ALT), aspartate-aminotransferase (AST) and GGT were measured in 221 CHB patients. Liver biopsy was conducted simultaneously to determine the inflammation grade and fibrosis stage of the liver tissues.

RESULTSThe rate of normal GGT in pathologically diagnosed mild and severe CHB patients was 90.4% and 12.3%, respectively (P<0.01). Increased level of GGT was parallel to the degree of liver pathological change (P<0.01). In active CHB patients, GGT rose with the ALT increase with a positive linear correlation between them (r=0.464, P<0.001). In pathologically diagnosed mild CHB patients, GGT had a tendency of rapidly declining to normal levels with ALT. In moderate CHB patients, GGT fluctuated at a relatively high level, and in severe CHB patients GGT exhibited a deviation from GGT.

CONCLUSIONSGGT is conducive to improve the coincident rate between the clinical and pathological diagnosis of CHB.

Adult ; Alanine Transaminase ; blood ; Aspartate Aminotransferases ; blood ; Female ; Fibrosis ; Hepatitis B, Chronic ; diagnosis ; enzymology ; pathology ; Humans ; Male ; Predictive Value of Tests ; Severity of Illness Index ; Time Factors ; gamma-Glutamyltransferase ; blood

OBJECTIVE: To study the expression of VEGF in sinonasal squamous cell carcinoma and its correlations with microvessel density (MVD), microlymphatic vessel density (MLVD). METHOD: The expression of VEGF, MVD and MLVD in 41 cases of sinonasal squamous cell carcinoma were detected by immunohistochemical technique. RESULT: In the sinonasal squamous cell carcinoma, the positive rate of VEGF was 82.9% (34/41). The over expression of VEGF was related with tumor invasion, histological grading and lymphatic metastasis (P < 0.05). The MVD of cases with positive VEGF expression was significantly higher than those without VEGF expression (P < 0.05), but was not statistical difference in MLVD (P > 0.05). CONCLUSION VEGF may participate in the metastasis of sinonasal squamous cell carcinoma through promoting vascularization in the tumors, but not promoting MLVD.
Carcinoma, Squamous Cell ; blood supply ; metabolism ; pathology ; Female ; Humans ; Male ; Microvessels ; Nasal Cavity ; Neovascularization, Pathologic ; Nose Neoplasms ; blood supply ; metabolism ; pathology ; Paranasal Sinus Neoplasms ; blood supply ; metabolism ; pathology ; Vascular Endothelial Growth Factor A ; metabolism

BACKGROUND: The basis of individualized treatment should be individualized mortality risk predictive information. The present study aimed to develop an online individual mortality risk predictive tool for acute-on-chronic liver failure (ACLF) patients based on a random survival forest (RSF) algorithm. METHODS: The current study retrospectively enrolled ACLF patients from the Department of Infectious Diseases of The First People's Hospital of Foshan, Shunde Hospital of Southern Medical University, and Jiangmen Central Hospital. Two hundred seventy-six consecutive ACLF patients were included in the present study as a model cohort (n = 276). Then the current study constructed a validation cohort by drawing patients from the model dataset based on the resampling method (n = 276). The RSF algorithm was used to develop an individual prognostic model for ACLF patients. The Brier score was used to evaluate the diagnostic accuracy of prognostic models. The weighted mean rank estimation method was used to compare the differences between the areas under the time-dependent ROC curves (AUROCs) of prognostic models. RESULTS: Multivariate Cox regression identified hepatic encephalopathy (HE), age, serum sodium level, acute kidney injury (AKI), red cell distribution width (RDW), and international normalization index (INR) as independent risk factors for ACLF patients. A simplified RSF model was developed based on these previous risk factors. The AUROCs for predicting 3-, 6-, and 12-month mortality were 0.916, 0.916, and 0.905 for the RSF model and 0.872, 0.866, and 0.848 for the Cox model in the model cohort, respectively. The Brier scores were 0.119, 0.119, and 0.128 for the RSF model and 0.138, 0.146, and 0.156 for the Cox model, respectively. The nonparametric comparison suggested that the RSF model was superior to the Cox model for predicting the prognosis of ACLF patients. CONCLUSIONS The current study developed a novel online individual mortality risk predictive tool that could predict individual mortality risk predictive curves for individual patients. Additionally, the current online individual mortality risk predictive tool could further provide predicted mortality percentages and 95% confidence intervals at user-defined time points.
Acute-On-Chronic Liver Failure ; Humans ; Prognosis ; Proportional Hazards Models ; ROC Curve ; Retrospective Studies