Objective To investigate the effect and mechanism of exogenous leptin on liver injury in severe acute pancreatitis rat .Methods Thirty male SD rats were randomly divided into the sham operation group ,SAP group and leptin intervention group . The SAP rat models was established by retrograde injection of 3 .5% sodium taurocholate into the biliopancreatic duct .The leptin intervention group was intraperitoneally injected with leptin 20 μg/kg .The rats in each group were sacrificed at 12 h after model‐ing .The pancreas and liver tissues were taken for HE staining and detecting the nuclear factor kappa B (NF‐κB) .The cell apoptosis in situ labeling method was adopted for detecting the liver tissue cell apoptosis index .ALT ,AST and AMY were detected . Results Compared with the sham operation group ,the liver tissue pathology score in SAP group and leptin intervention group were significantly increased(P<0 .05) .The liver tissue pathology scores in the leptin intervention group were lower than those in the SAP group(P<0 .05) .The NF‐κB expression of liver tissue in the SAP group and leptin intervention group was obviously increased compared with the sham operation group ,the expression in the leptin intervention group was decreased compared with the SAP group (P<0 .05) .The liver cell apoptosis index in the leptin intervention group and SAP group was significantly higher than that in the sham operation group (P<0 .05) ,and which leptin intervention group was decreased compared with the SAP group (P<0 .05) . The results of ALT ,AST and AMY in the SAP group and leptin intervention group were increased significantly compared with the sham operation group(P<0 .05) ,while which in the leptin intervention group was decreased compared with the SAP group (P<0 .05) .Conclusion The exogenous leptin may play the protective effect on SAP complicating liver damage by lowering the liver tis‐sue NF‐κB expression and reducing the liver cell apoptosis index .

Due to the good tumor-targeting and excellent biocompatibility, the drug-loading nanoparticles (NPs) has been widely applied in the diagnosis and treatment of cancer. However, after the NPs are recognized and internalized by cancer cells, the effects of NPs on cell migration behavior were unclear. In the present study, the self-assembly techniques (SAMs) was used to modify gold (Au) nanoparticles (Au NPs) with different chemical functional groups (CH3, OH, COOH and NH2) as model NPs. The dispersion of these groups in solution and the distribution in cells were studied by transmission electron microscope (TEM), respectively, and the proliferation was examined by MTT assay in vitro. The wound-healing and the Transwell assay were used to examine the effect of internalized Au-NPs on HepG2 cells migration. The results showed that different Au-NPs mainly distributed at the edge of the vesicle membrane and the gap between cells. The Au-NPs resulted in decreased cell viability in a concentration-depended manner. In addition, the results of wound-healing and Transwells assay indicated that the internalization of the NH2-NPs and OH-NPs would inhibit cell migration compared with those in the control group.
Carcinoma, Hepatocellular ; metabolism ; Cell Movement ; Cell Proliferation ; Cell Survival ; Gold ; Hep G2 Cells ; Humans ; Liver Neoplasms ; metabolism ; Metal Nanoparticles ; chemistry

Objective To observe the effect ofYinqiao Powder on the mouse models with upper respiratory trace mucosal immunity dysfunction infected with influenza virus A, and explore mechanism of action.Methods The mouse models of upper respiratory trace mucosal immunity dysfunction induced by cold stimulation with the influenza A/PR/8/34 (H1N1) virus through the nasal cavity were established. The mice were randomly divided into normal group, model group, positive medicine (Ribavirin) group, andYinqiao Powder group. All administration groups received gavage with relevant medicine, and then mortality, the life prolonging rate, average survival time and the lung index of each group were observed.Results Compared with the model group, the mortalities in positive medicine group andYinqiao Powder group decreased significantly (P<0.05,P<0.01), with longer survival time. The lung indexes in positive medicine group andYinqiao Powder group decreased significantly (P<0.05,P<0.01), and the inhibition ratios of lung index were 35.5% and 24.6%, respectively.ConclusionYinqiao Powder can realize the protective effects on upper respiratory infection through upregulating the mucosal immunity of the upper respiratory tract of mouse models.

Objective To assess the clinical value of measuring the concentration of serum osteoprotegerin (OPG) in detecting the bone metastases in patients with prostate cancer. Methods The concentration of serum OPG in 40 patients was determined by ELISA. The data of ECT bone scan and Gleason score was collected simultaneously. The correlations between serum OPG and bone metastases, Gleason score were tested. Results The concentration of serum OPG in patients with bone metastases by ECT scan was( 16 237. 19 ±5144. 26) ng/L,which was significantly higher than the concentration in patients without bone metastases , which was (12 123.32 ±4136. 50)ng/L. There was no significant correlation between serum OPG and Gleason score. Conclusions The serum OPG has an important clinical value in prediction of prostate cancer with bone metastases. There is no significant correlation between serum OPG and the Gleason score.

Genomic DNA was extracted from the blood samples of 3 patients from 1 pedigree with congenital nephrogenie diabetes insipidus (NDI) and their 12 family members.The whole coding region of the arginine vasopressin receptor 2 (AVPR2) gene was amplified by PCR and then directly sequenced,A mutation of AVPR2 gene [g1236T→C (L292P)]was found in 3 patients.The patients' mothers were found to have both mutant and normal alleles.

AIM:To investigate the influence of pinellia heart-draining Decoction, Licorice heart-draining Decoction, Fresh ginger heart-draining Decoction and its dismantlements on the amount of gastric mucus in rats. METHODS:20 different combination of Banxiaxiexin Decoction and its analogus according to the unform design layout, the amount of gastric mucus in rats was determinated. Stepwise regression analysis was adopted to estimate the relationship between the pharmacological data and compatibility. RESULTS:Rhizoma Coptidis could reduce the amount of gastric mucus remarkbably, the interaction of Rhizoma Pinelliae、Fructus Ziziphi Jujubae and Radix Glycyrrhizae could increase the amount of gastric mucus, and interaction was confirmed among different medicinal ingredients in prescription. CONCLUSION:Uniform design provides a referable exeperimental design for studying analogus decoction compatibility law.

lusions WI parameters reflect both cardiac and vascular changes of hyperthyroid patients. Mid-systolic hemodynamic turbulence appears in a portion of hyperthyroid patients.

Adolescent ; Brain Diseases ; diagnostic imaging ; Brain Neoplasms ; diagnostic imaging ; surgery ; Diagnosis, Differential ; Hematoma, Epidural, Cranial ; diagnostic imaging ; Hernia ; diagnostic imaging ; Humans ; Male ; Plasmacytoma ; diagnostic imaging ; surgery ; Tomography, X-Ray Computed

Objective To study the effect of platelet-derived growth factor(PDGF)and lysosomes on lung injury in macaque with early-phase endotoxie shock.Method Eleven macaques were randomly divided into two groups,namely,control group(Co group,n=5)iand endotoxic group(En group,n=6).The macaque of the Co group injected with 1 ml/kg normal saline and the macque of the En group received a dose of 2.8 mg/kg Lipopolysaccharides(LPS)i.v.The blood gas was detected at 120 minutes after LPS challenging. Uhrastructure,cytochemistry of acid phosphatase(ACPase)detection by electronic microscopy and immunohistochemical assay of PDGF were completed in hmgs of all the macaque .Results Administration of LPS did not change the parameters of gas exchange,namely,PaO_2,PaO_2/Fi and PaCO_2.In the early phase,of endotoxic shock,ACPase activity products increased and lysosome destroyed in the alveolar cells.The pathologic changes of alveolus,such as degeneration of vessel endothelium,injury of alveolar epithelium and damage of basement membrane,and transudation of blood component were observed by electron microscopy in the En group. However,no pathological changes were found in the control group.By immunohistochemical staining,PDGF on alveolar wall in the En animals was observed,whereas no PDGF protein in the Co macaques was noticed. Conclusions Administration of LPS induced the expression of PDGF in the alveolar wall and lysosome injury in the alveolar cells,as a result of alveolar damage in early-phase endotoxin shock.In the meantime,the parameters of gas exchanges did not change.The PDGF may play an important role in the pathogenesis of lung during the early-phase of endotoxin shock.

Objective To measure the level of androgen receptor (AR) mRNA in peripheral blood monocytes (PBMCs) and serum testosterone level of patients with gouty arthritis (GA) and healthy controls (HC),and to explore the role of testosterone and AR in the pathogenesis of GA.Methods Chemilluminescence was used to detect the level of serum testosterone in GA [including 119 acute GA (AGA) and 60 nonacute GA (NAGA) patients] and 47 HC group.Real-time quantitative polymerase chain reaction (RT-qPCR)was used to measure AR mRNA in PBMCs from 41 GA and 35 HC.Western blotting was used to measure PBMCs AR in GA and HC for each 6 cases.One-way ANOVA,t test and Spearman's correlation were adopted for statistical analysis.Results Serum testosterone was significantly reduced in AGA and NAGA group compared to that in HC group [(6.1±1.5) ng/ml,P＜0.01,respectively],and the expression was lower in the AGA [(3.7±1.4) ng/ml] group [(4.9±2.0) ng/ml] than that in the NAGA group (P＜0.01).The level of AR mRNA and protein was much lower in the GA group than that in the HC group (P＜0.01,respectively).Negative correlations was detected between AR mRNA and uric acid in GA patients.There was negative correlation between serum testosterone and VLDL,GLU; meanwhile,positive correlation was found between serum testosterone and HDL (P＜0.05,respectively) in NAGA patients.There were no correlations between testosterone and other laboratory data.There was no correlation between AR and other laboratory data in GA patients and healthy controls (P＞0.05,respectively).Conclusion Altered expression of testosterone and its receptor may be involved in the pathogenesis of gouty inflammation.Further study will be needed to shed light on the exact role of androgen and AR in gout.