Objective: To determine the role of p38 mitogen-activated protein kinase (MAP) kinase signal transduction pathways in epigallocatechin-3-gallate (EGCG)-induced apoptosis in human gastric cancer MGC803 cells. Methods: The viability of MGC803 cells was measured by MTT assay. Apoptosis of MGC803 cells was observed by AO/EB fluorescence microscopy and detected by flow cytometry with PI staining. Expression of p38MAPK and phosphorylated p38 (pp38) MAPK were determined by Western blot analysis. Results: EGCG induced apoptosis of MGC803 cells and apparently increased the activity of pp38MAPK in MGC803 cells. However, after interference with pp38MAPK inhibitor, the inhibitory effect of EGCG on MGC803 cells was significantly weakened. The apoptotic rate of the cells and the activity of pp38MAPK also decreased dramatically. Conclusions: EGCG can induce apoptosis of MGC803 cells. The effects could be markedly suppressed by pp38MAPK inhibitor, SB203580. EGCG induces apoptosis of MGC803 cells partly by activating p38 MAPK.

Objective To investigate the expression of Gadd45beta protein in human hepatocellular carcinoma(HCC) and its clinicopathologic significance.Methods Immunohistochemical method was used to detect the expressions of Gadd45beta in both hepatocellular carcinoma tissues and adjacent non-neoplastic liver tissues form 50 cases.Results The positive rates of Gadd45beta expression in the hepatocellular carcinoma tissues and adjacent non-neoplastic liver tissues were 26.0%(13/50) and 82.0%(41/50) respectively.There were significant difference for the positive rate between the two groups(P0.05).Conclusion Low expression of Gadd45beta protein in hepatocellular carcinoma tissues was exhibited,which may be related to hepatocarcinogenesis as well as biological behaviors and prognosis of HCC.

Objective To investigate the change of Gadd45?/? in HepG2 cells after UV radiation.Methods HepG2 cells were cultured in vitro followed by radiation with UV (254nm,10 J/m2)and harvested at 1,2,4 h respectively.The induction of Gadd45?/? mRNA by UV was analyzed using RT-PCR,and the induction of Gadd45?/? protein was determined by Western blot assay at the given interval simultaneously.Results The peak values of Gadd45?/? mRNA appeared at 4 h and 1h after induction respectively,while the both of the peak value of Gadd45?/? protein were found at 1h after UV radiation.Conclusion Gadd45?/? could be rapidly induced by UV radiation in HepG2 cells.

Objective To find out the material base of the induction and aggravation of psoriasis by psycological factors such as stress and depression etc. Methods Radioimmunoassay (RIA) was used to determine the effect of sera from 49 psoriatic patients and 34 healthy controls on the suppression of the lymphocyte transformation of normal mouse lymphocytes. Results The lymphocyte transformation rate of mouse lymphocytes treated with the sera of psoriatic patients was 41.55%, and that of controls was 68.09%. The suppressive effect of sera in patients during the progressive stage and with more extensive lesions were stronger than that in the stable stage and with less lesions (P

Objective To investigate the prevalence of sexual dysfunction in aged men and associated risk factors in Beijing. Methods A cross-sectional study was performed in communities of Beijing involved 1656 men aged over 50 years.The International Index of Erectile Function-5 (IIEF-5),Brief Male Sexual Function Inventory for Urology ( O'Leary 1995 ) and the International Prostate Symptom Score (IPSS)questionnaires was recorded.The body mass index (BMI),prostate size was measured.The survey was conducted to make sure if the patients had diabetes,high blood pressure,hyperlipidemia,cerebrovascular history,and smoking and drinking situation.Pearson's X2 test and unconditional logistic regression were used to investigate the factors associated with sexual dysfunction. Results 1644 subjects were enrolled.The incidence of ED,reduction of sexual desire and defective ejaculation was 90.45％,60.04％ and 38.81％ respectively,and significantly different according to age ( P ＜ O.05 ). Age was positively correlated with ED (3 =0.12,P＜0.05),reduction of sexual desire (β =0.10,P＜0.05) and defective ejaculation (β =0.10,P ＜ 0.05 ) ; ED was significantly associated with BMI (β =0.07,P ＜ 0.05 ).Hypertension and prostate size were risk factors for reduction of sexual desire and defective ejaculation; There was correlation between drinking and defective ejaculation ( β =- O.31,P ＜ 0.05 ). Conelusions Compared with high prevalence of ED and lower sexual desire,the incidence of defective ejaculation were lower; this may reflect the sexual activities of aged male were more active compared with the less success of really erection.The prevalence of ED,reduction of sexual desire or defective ejaculation increased with age.BMI was the risk factor for ED.Enlarged prostate and hypertension was associated with reduction of sexual desire,and drinking was the risk factor for defective ejaculation.

Objective To explore the initial therapy indications of acute immune thrombocytopenia (ITP) in children based on the classification treatment.Methods Three hundred and eighty newly diagnosed ITP cases were enrolled in this study from Jan.1st 2012 to Apr.30th 2013 in Children's Hospital Affiliated to Shanghai Jiaotong University.In total 380 patients,there were 214 male cases (56.31％) and 166 female cases (43.68％).The cases were divided into observation group and therapy group according to the initial platelet count which was ≤ 30 × 109/L or the bleeding over moderate volume or with active bleeding.Platelet values were observed in the observation group weekly,adrenal cortical hormone and immunoglobulin treatment were adopted in the therapy group,cases were followed up to Aug.30th 2013,9 months on the average.Results Three hundred and five cases showed overall response (80.26％) and 75 cases showed no response(19.74％).One hundred and seventy-eight cases were divided into observation group (46.84％),in which 133 cases (74.72％) showed complete response or response.Two hundred and two cases were included in therapy group (53.16％),in which 167 cases (82.67％) were with complete response or response.There was no statistical difference between the 2 groups in curative effect (Z =-0.54,P =0.59).Forty-five cases in observation group were no response and accepted therapy,35 of them (77.78％) had response.There were equal efficiency in the initial therapy group and the subsequent therapy group (x2 =3.60,P =0.06).There was no difference between the age of onset,sex and season in 2 groups.Cases aged from 1 month to 1 year seemed to have a high incidence because of vaccination,and in the cases aged from 3 to 14 years the onset was related to infection.The children over 3 years old had higher risk factors in self-healing and the curative effect.There was no severe bleeding or adverse effect or dead cases in this study.Conclusions It is feasible to take platelet count ≤30 × 109/L as the threshold for initial therapy indications.Almost half of the cases could avoid overtreatment and pretherapy observation will not reduce the initial cure effect; no severe internal bleeding was observed in all the cases.

Autoimmune encephalitis is a kind of inflammatory disease of central nervous system caused by abnormal immune response of body immune system to neuronal antigen,and is generally considered to be reversible encephalitis caused by noninfectious factors.Its characteristic manifestations include acute and subacute onset of cognitive dysfunction,epilepsy and mental disorder.With the discovery of related antibodies,summaries of clinical syndrome and application of new functional imaging instruments,the diagnosis of autoimmune encephalitis is increasingly standardized.The priority treatment of autoimmune encephalitis is immunomodulatory therapy,including glucocorticoid,immunoglobulin,plasma exchange and immunosuppressant.The other treatments could be the related tumor resection,electroshock therapy,etc.The symptoms in most patients can get substantial relief with active treatment.The present paper would focus on the research progress in treatment of autoimmune encephalitis.

Acute paraplegia is a rare presentation for a spinal cord ependymoma. Subarachnoid hemorrhage (SAH) due to spinal ependymoma is also very rare. We report a 32-year-old woman who presented with acute paraplegia and typical clinical signs of SAH with normal cerebral angiography, and further diagnostic work-up revealed an spinal cord ependymoma as the source of the hemorrhage. There is evidence that some spinal cord ependymomas have intratumoral hemorrhage, but most of these bleedings occur without symptoms. We discuss the clinical and neuroradiological findings of this rare case and review the literature related to this unusual presentation.431

Objective The international multidisciplinary lung adenocarcinoma classification was published by IASLC/ ATS/ERS in 2011.This study aimed to explore the clinicopathologic characteristics of lung adenocarcinoma based on IASLC/ATS/ERS classification and validate its clinical diagnostic and therapeutic value.Methods 2 056 cases of surgical resection from Shanghai Chest Hospital were classified according to the new classification and clinical information were retrospectively reviewed.The clinicopathologic characteristics based on new classification were analyzed statistically.Results Our data indicated that women were in high risk of lung adenocarcinoma; The average age of onset was 59-year-old; the female patients were younger than the male patients (58.7 years vs 60.2 years,P ＜ 0.01) ; Average tumor diameter was 2.6 centimeter; right lung was more popular than left and superior lobe than the inferior one.Acinar predominant subtype and papillary predominant subtype were frequently observed.Micropapillary predominant subtype and solid predominant subtype were identified to be more aggressive than other histopathologic subtypes.Most patients were classified as stage Ⅰ(71.7％),which were predominantly stage Ⅰa (53.1％).Conclusion The new classification is superior to reflect the clinicopathologic characteristics of lung adenocarcinoma and satisfy clinical needs,especially contributing to change and update the surgical strategy of early stage lung adenocarcinoma.

Based on the plasma activation and the sensing ability of cataluminescence, a low temperature plasma-assisted cataluminescence sensor was developed for ethylene detection using the low-cost and abundant alkaline-earth oxides of MgO nanomaterials as the sensing materials.Taking advantage of the high activity of the plasma, the working temperature of this method was greatly decreased than that of traditional detection method (300-500℃), and the sensing of ethylene was realized at room temperature without any heating device.This ethylene cataluminescence sensor gave a linear range of 112-4997 ng/mL (90-3998 ppm, R=0.97669) with a detection limit of 37 ng/mL (30 ppm).Besides, the sensor showed good selectivity and stability in ethylene detection.Due to the absence of the heating element, the present sensor was simple, rapid, low-cost, low energy-consumption and stable for ethylene sensing.This study improved the applicability of cataluminescence sensors and might promote the development of cataluminescence sensors.