Objective To study the relationship between P53 and carcinogenesis of epithelial ovarian cancer. Methods Immunohistochemistry was used to evaluate the expression level of P53 protein in 74 cases of epithelial ovarian cancer. Results The expression level of P53 protein was higher in G1 and G2 groups (90.62%) than in G3 group (66.67%, P 0.05). Conclusion P53 may play a role in the pathogenesis of epithelial ovarian cancer.

Objective To detect the expression of inhibitor of apoptosis protein survivin and mdr1 gene protein P-gp in ovarian epithelial carcinoma,and analyze their functions of drug resistance in chemotherapy and the relationship with pathological characteristics.Methods We detected the expression of survivin and mdr1 proteins in 8 cases of normal ovarian tissues,16 cases of benign epithelial ovarian tumor tissues and 46 cases of epithelial ovarian cancerous tissues(28 cases of serous cystadenocarcinoma,12 cases of mucinous cystadenocarcinoma,and 6 cases of endometrioid carcinoma) with immunohistochemistry.Results The positive rate of survivin and mdr1 proteins in ovarian cancerous tissues was 60.9% and 34.8%,respectively,which was significantly higher than that in benign epithelial ovarian tumor tissues(31.3% and 0%) and normal ovarian tissues(negative)(P

Diagnosis before procreation is an important examination in pregnancy.It could find out abnormity during the period of fetation,so we could use techniques like terminating pregnancy treatment in the uterus to improve the quality of babies.However,with the development of obsteric techniques,people can choose their baby's gender,as a result,it will certainly break the balance between male and female.It can impair the development of human being,so we have to deal with more ethical problems.

Objective To investigate the expression and significance of p53 and CDK4 proteins in human endometrial adenocarcinoma. Methods Expressions of p53 and CDK4 proteins were detected by immunohistochemical technique in 32 cases of endometrial adenocarcinoma. Results The positive expression rate of p53 protein in the 32 cases of endometrial adenocarcinoma was 43.8% (14/32), and the positive rate of p53 in endometrial adenocarcinoma was negatively related to pathological grade, myometrial invasion and lymph node metastasis (P 0.05). The positive expression rate of CDK4 was 68.8% (22/32), and CDK4 expression was significantly associated with myometrial invasion and lymph node metastasis (P 0.05) . There was negative correlation between p53 and CDK4 (P

Objective To studythe role of p16 and cyclin in the genesis and development of endometrial car-cinoma. Methods 12 cases of normal endometrium, 22 cases of proliferative endometrium and 41 cases of endome- trial carcinoma were detected for the expression of p16 and cyclin D1 by means of immunohistochemical S-P. Results In normal endometrium p16 was expressed while cyclm D1was almost negative in the proliferative phase, but both of them were negative in the secretory phase. Among the groups of the simple and compound hyperplasia, the atypical hyperplasia and the endometrial carcinoma,the expression of p16 showed a descending tendency, while the expression of cyclin showed an ascending tendency. In endometrial carcinomas the expression of p16 was significantly lower than that of normal endometrium and proliferative endometrium (P<0. 01 ,P<0.05). However, the expression of cy- clin in proliferate endometrium and endometrial carcinoma was significantly higher than that in normal endometri- un (P<0. 05,P<0. 01). The overexpression of cyclin D1 in the atypical hyperplasia group was obviously different from that in the simple and compound hyperplasia group (P＜0.01). In endometrial carcinoma,the expression of p16 was decreasing with the descending of cell differentiate degree, on the opposite, the expression of cyclin was in-creased and there existed a negative correlation between them. It was also observed that the overexpression of cyclin was significant different between and ( P ＜0. 01 ). Conclusionp1 6 is a negative regulating factor of cell cycle in endometrial carcinoma, while cyclin is a positive one. Both of them are important in the genesis and devel-opment of endometrial carcinoma. The Iow expression of p1 6 and the overexpression of cyclin are related with the malicious biological behaviors of endometrial carcinoma and maybe play an important role in the judgement of prog- nosis. Overexpression of cyclin may be an earlier molecular event in the genesis of endometrial carcinoma.

Objective To observe the effect of hydrogen on ultraviolet B (UVB)-induced oxidative damage to skin fibroblasts.Methods Primary human skin fibroblasts from foreskin tissues were divided into five groups:normal control group receiving no treatment,hydrogen control group treated with hydrogen-rich saline,UVB group receiving irradiation only,post-treatment group irradiated with UVB followed by hydrogen-rich saline treatment,and pre-treatment group treated with hydrogen-rich saline followed by UVB irradiation.The dose of UVB was 30,60 and 90 mJ/cm2 in the cell proliferation assay and 90 mJ/cm2 in the other experiments.Methyl thiazolyl tetrazolium (MTT) assay was performed to evaluate the proliferative activity of fibroblasts,a chemiluminescence method to estimate the activity of superoxide dismutase (SOD) and catalase as well as to determine the level of malondialdehyde in the culture supernatant of fibroblasts,enzyme linked immunosorbent assay (ELISA) to determine the supernatant level of 8-isoprostane-prostaglandin F2α (8-iso-PGF2α),Western blot to detect the expression of heme oxygenase-1 (HO-1) in fibroblasts.One-factor analysis of variance was conducted to assess differences in these parameters among these groups.Results UVB irradiation decreased the proliferative activity (absorbence value at 490 nm) of fibroblasts in a dose-dependent manner.Both the pre-treatment group and post-treatment group showed a statistical increase in proliferative activity of cells compared with the corresponding UVB control groups (all P ＜ 0.05).The activity of SOD and catalase as well as the protein expression of HO-1 were significantly higher (all P ＜ 0.05),whereas the supernatant levels of malondialdehyde and 8-iso-PGF2α were statistically lower (both P ＜ 0.05) in the pre-treatment group and post-treatment group than in the UVB control group.Conclusion Hydrogen may mitigate UVB-induced oxidative damage to skin fibroblasts.

To study the antiviral effect of Hypericum perforatum L. extract (HPE) on influenza A virus (IAV) (H1N1) in vitro and in vivo. Cytopathic effect (CPE) and neutral red (NR) dye uptake were used to examine the antiviral effect of HPE on Madin Darby Canine Kidney (MDCK) cells which were infected with IAV in vitro. HPE was effective against influenza A virus (IAV) in vitro, with a 50% effective concentration (EC50) of 40 μg/mL. The mean 50% cytotoxic concentration (CC50) in the MDCK used in these experiments was 1.5 mg/mL. Ribavirin was run in parallel with EC50 values of 5.0 μg/mL; the mean CC50 for ribavirin was 520 μg/mL. Oral gavage administrations of HPE or ribavirin to mice infected with the IAV were highly effective in preventing death, slowing the decline of arterial oxygen saturation, inhibiting lung consolidation and reducing lung virus titers. The minimum effective dose of HPE in these studies was 31.25 mg/kg/day, which was administered twice daily for 5 d beginning 4 h prior to virus exposure. Below a dosage of 2000 mg/kg/day, almost all treated mice survived, which suggests that HPE is of low toxicity. Ribavirin's minimum effective dose was 40 mg/kg/day with the LD50 determined to be 200 mg/kg/day. Delay of the initiation of either HPE or ribavirin therapy, using approximately 1/3 LD50 dose each time, could still be protective as late as 48 h after exposure to the IAV. While both agents appeared to have similar efficacy against IAV infections, HPE was considered to be less toxic and may warrant further evaluation as a possible therapy for influenza.

Objective To observe the effect of SSRI combined with TCM on the treatment of depression of different TCM types. Methods 70 depressive patients of stagnation of liver qi (SLQ) were randomly recruited into a study (34 cases) and a control group (36 cases); 60 depressive patients of spleen deficiency and liver qi stagnation (SDLQS) were randomly recruited into a study (30 cases) and a control group (30 cases); and SO depressive patients of deficiency of both heart and liver (DBHL) were randomly recruited into a study (24 cases) and a control group (26 cases). Patients in the study group were treated with SSRI and TCM; with the control group was only treated with SSRI. All patients were assessed with HAMD, HAMA and CGI before treatment and after treatment at 1st weekend, 2nd weekend, 4th weekend and 6th weekend. Differences of effective rate and full remission rate were contrasted. Results ①Scores of depression scale decreased in both the study group and the control group of patients with SLQ and SDLQS at the 4th [SLQ study group: (9.01±3.45), control group (13.02±4.54); SDLQS study group (10.22±3.23)、 control group (14.12±3.87)] and 6th [SLQ study group (6.02±2.20), control group (10.22±2.10); SDLQS study group (7.25±2.20) control group (10.68 ± 3.45)] weekend, showing statistical differences; anxiety state has been improved since the 1st weekend; no obvious changes of HAMD and HAMA showed in both the study group and the control group of patients with DBHL; ②Therapeutic effects in the study group were higher than the control group of both patients with SLQ and SDLQS, showing statistical significance; while no difference can be seen between the two group of patients with DBHL; ③ No differences of full remission rate between the study group and the control group of 3 TCM types were found(SLQ:41.1%v30.6%,χ2=0.859,P>0.05; SDLQS:40.0%v33.3, χ2=0.287,P>0.05; DBHL: 33.3%v26.9%,χ2=0.244,P>0.05). ④Significant differences of HAMD and HMDA between the study and the control group of 3 TCM types were found before and after treatment Conclusion SSRI integrated with TCM may promote effective rate and decrease anxiety in patients with SLQ and SDLQS.