Objective:The pathogenesis of endometriosis(EMT)was explored by detecting the relationship of progesterone receptors(PR)and apoptosis-associated factors with EMT.Methods:Immunohistochemical imaging analysis was used to quantify the expression of PR,Bcl-2 and Bax in ectopic and eutopic endometrium in patients with EMT.Results:Expressions of PR and Bcl-2 in eutopic endometrium are higher than those in ectopic endometrium(P<0.05).Expression of Bax in ectopic endometrium is higher than that in eutopic endometrium(P<0.05).There is no statistical difference of PR,Bcl-2 and Bax expression between proliferative and secretary endometrium.Conclusions:Either in proliferative or secretary phase,expressions of PR in eutopic endometrium are higher than those in ectopic endometrium,thus eutopic endometrium is more liable to proliferate in low level continuously,migrate and implant.Expressions of Bcl-2 and Bax in eutopic and ectopic endometrium have no relationship with endometrium cycling.The apoptosis of ectopic endometrium is weakened and its proliferative power is continuously enhanced.

Objective To study the effect of bisphenol A (BPA) and dibutyphthlate (DBP) treated with Rat Liver S9 on proliferation MCF-7 cells. Methods Added the positive control 17?-estradiol (E2) and compounds of BPA and DBP with the effect of Rat Liver S9 to MCF-7 cells proliferation respectively and determinated the quantity of MCF-7 cells with MTT assay. Results The activity of E2 and DBP stimulated MCF-7 cells decreasing significantly with the effect of Liver S9 than without the effect of Liver S9, while BPA stimulated MCF-7 cells increasing significantly with the effect of Liver S9 than that without the effect of Liver S9. Conclusion E2 and DBP have a lower estrogenic activity with the effect of S9 than without the effect of S9. BPA shows a higher estrogenic activity with the effect of S9 than without the effect of S9.

Objective To investigate the activity changes of gelatinase in the formation of ascending aortic aneurysm.Methods Thirty five young Wistar rats were divided into two groups:the control group and the experiment group.The rat models induced by ascending aorta banding were made.The ascending aortas were taken after 3-5 months operation,changes of gelatinase activity was observed by gelatin zymography and film in situ zymography.Results Gelatinase activity of ascending aortic aneurysm was significantly increased compared with that of normal ascending aortic aorta.Conclusion Elevation of gelatinase activity may play a significant role in the formation of ascending aortic aneurysm.

Objective To evaluate the impact of 1125 seeds para-tracheal braehytherapy on regional tissue injury in rab-bit models. Methods 42 rabbits were randomized into 7 groups. Group 1 to 6 belong to study groups (in which 1,4,5 and 6 belong to "dose gradient" subgroup, while 2,3 and 4 to "chronologic" subgroup) , while the last group acts as negative con-trol. The activity of seeds in study group were 0.3 mCi in group 1, 0.5 mCi in group 2 to 5, 0.7 mCi in group 5, and 0.9mCi in group 6. False seeds (0 mCi) were used for the negative control. 4 seeds with equal dosage were implanted between trachea and esophagus in each rabbit under general anesthesia. Seeds arrangement was made according to Paris principle. For the tissue injury evaluation, group 2 was sacrificed by the end of first month post-operatively, group 3 at the end of the second month, and group 4 end of the third month. The rest of rabbits were also sacrificed at the end of the third month. Pieces of adjacent e-sophagus and trachea were sampled from each rabbit. Tissue injury features such as inflammation, edema, congestion or fibrosis as evaluated histologically. Results All rabbits were healthy during study period except 5. Histological analysis revealed that trachea samples from all groups had lymphocytas and plasma cells infiltration as signs of chronic inflammation, hut fibrosis was nut clearly visible. There were no differences between study and control groups with respect to inflammation, edema and con-gestion scores. But in groups which received the highest doses of radiation or sacrificed at 60 d showed more eosinophil infiltra-tion and epithelum degeneration, and statistical significance was reached between these groups and control. Esophageal samples had less histological changes compared with trachea. Conclusion Para-tracheal implantation of ~(125)Ⅰ seeds with therapeutic or higher dosage only induce minor and reversible damage to the regional tissue. This implies that ~(125)Ⅰ implants adjacent to trachea or esophagus are clinically safe.

Objective To put forward reasonable and feasible recommendations aiming at enhancing the application safety of afterloading unit, through studying the human reliability in the emergency response against the source blockage of afterloading unit.Methods Based on the human cognition reliability model, ten operation errors during the emergency response against the source blockage of afterloading unit were analyzed and permissible time widow of emergency response operation were determined.The human error probability was calculated with the execution time of emergency response operation obtained through simulation, observation and recording.Results The operation action, relevant permissible time window and execution time were obtained with the corresponding human error probabilities in the range 0.04 - 0.27.Conclusions The human error model in emergency response against the source blockage of afterloading unit based on HCRmodel is feasible, and provides important reference basis to reduce the occurrence of potential exposure and mitigate the consequence of potential exposure.

Objective To observe the clinical efficacy of cytokine-induced killer cells (CIK) combined with three dimensional conformal radiotherapy synchronization XELOX regimen in the treatment of local recurrence of rectal neoplasms.Methods A total of 81 patients with local recurrence of rectal neoplasms were divided into treatment group (41 patients) and control group (40 patients) by random digits table method.In treatment group,41 patients received simultaneous three dimensional conformal radiotherapy combined with XELOX chemotherapy,then received CIK treatment.In control group,40 patients received concurrent chemoradiotherapy.The immune function,quality of life (QOL) scores,recent efficacy,survival rate and adverse reactions were analyzed.Results In treatment group,the level of CD3+,CD4+,CD4+/CD8+ and CD16+ CD56+ increased and the level of CD8+ decreased significantly after treatment than those before treatment (0.671 ± 0.012 vs.0.625 ± 0.022,0.378 ± 0.043 vs.0.315 ± 0.035,1.59 ± 1.41 vs.1.02 ± 1.14,0.184 ±0.008 vs.0.121 +0.023,0.237 ±0.030 vs.0.308 ±0.031,P ＜0.05).Compared with those in control group after treatment,the level of CD3+,CD4+,CD4+/CD8+ and CD16+ CD56+ in treatment group increased and the level of CD8+ decreased significantly (P ＜ 0.05).QOL scores of 70.7％ (29/41) patients in treatment group was improved,significantly higher than the 32.5％ (13/40) in conctol group (P =0.001).The response rate(RR) in treatment group was 92.7％(38/41),significantly higher than that in control group [75.0％ (30/40)] (P =0.030).The 1-year survival rate in treatment group and control group were 90.2％(37/41) and 85.0％(34/40),there was no significant difference (P =0.473).The side effect in treatment group and control group showed no significant difference (P＞0.05).Conclusion CIK combined with concurrent chemoradiotherapy in the treatment of local recurrence of rectal neoplasms can improve patients 'immune function,QOL and recent efficacy.

Objective To investigate the expression and signification of B-cell lymphoma/leukemia-2(bcl-2),bax and ER proteins in epithelial cells in different depth of adenomyosis.Methods Expression and correlation of bcl-2,bax and ER proteins were detected by immunohistochemistry staining in 36 adenomyosis cases with superficial (＜ 1/2 depth of penetration) and deep (≥ 1/2 depth of penetration)ectopic endometrium and eutopic endometrial tissues matched with 30 cases with benign ovarian tumor,uterine septum,pelvic floor dysfunction without adenomyosis as controls.Results (1) The expression of ER protein in superficial and deep ectopic tissues (5.04 ±0.24,4.91 ±0.16) were found significantly lower than 6.06 ± 0.36 in eutopic tissues (P ＜ 0.01) and higher than 3.70 ± 0.58 in control group (P ＜ 0.05).There was no statistical difference of ER expression in superficial and deep ectopic endometrium (P ＞ 0.05).(2) The level of bcl-2 protein of 5.6 ± 0.4 in superficial and 6.0 ± 0.3 in deep myometrium of ectopic tissues were significantly higher than 3.6 ± 0.4 in eutopic tissues and 1.9 ± 0.4 in control group (P ＜ 0.01).(3) The level of bax protein of 3.50 ± 0.28 in superficial and 4.80 ± 0.29 in deep myometrial ectopic and 4.43 ± 0.37 in eutopic tissues were significantly lower than 6.18 ± 0.65 in control groups (P ＜0.05).The expression of bax in superficial myometrium is significantly lower than deep myometrium in ectopic tissues (P ＜0.01).(4) The positive correlation between the expression of ER and bcl-2 protein at superficial myometrium of ectopic tissues (r =0.720,P ＜ 0.01).And there was no significant correlation with the expression of ER and bax protein at superficial myometrium (r =0.008,P ＞ 0.05).As well as,there was not significant correlation with the expression of bcl-2,bax and ER protein at deep myometrium (r =0.089,r =-0.023,P ＞ 0.05).The expression of bax protein in ectopic endometrium was positive correlation with the depth of adenomyosis penetration (r =0.736,P ＜ 0.01).There was positive correlation between the expression of ER and bcl-2 protein at normal endometrium (r =0.453,P ＜ 0.05).And there was negative correlation between the expression of ER and bax protein at control group (r =-0.514,P =0.05).Conclusion The bax protein expression of ectopic endometrium in deep adenomyosis was higher than superficial adenomyosis.

To evaluate the efficacy of heparin combined with low molecular heparin against early thrombosis in chronic patients after native arteriovenous fistula ( AVF) . Methods: A total of 299 patients were enrolled in the study from January 2012 to December 2014 and randomly divided into two groups. The control group received 5000IU low molecular heparin after the operation for 7 days and the trial group received 3 000u heparin additionally through free arterial end and venous terminal during the operation. The thrombosis formation rate and adverse drug reactions ( ADR ) of one week and 4 weeks after the operation were observed in the two groups. Results:One week after the operation, the thrombosis formation rate in the control group and the trial group was 3. 4% and 0, respectively, and four week after the operation, that was 4. 8% and 0. 67%, respectively. The incidence of ADR showed no statistical-ly difference between the two groups (P>0. 05), and no severe ADR appeared in both groups. Conclusion:Heparin combined with low molecular heparin may be more effective and safer in the prevention of primary thrombosis in the patients after AVF.

AIM: To evaluate the clinical outcomes of combined wavefront - guided and aspheric laser in situ keratomileusis ( LASIK ) to correct myopia and myopic astigmatism.
METHODS: Prospective study. Forty-five patients ( 62 eyes ) with myopia and myopic astigmatism were randomly dividied into two groups:the wavefront-guided and aspheric LASIK group and the wavefront- guided LASIK group. Safety, efficacy, predictability, ocular higher order aberrations(HOAs), and contrast sensitivity under mesopic condition were compared at 6mo postoperatively.
RESULTS: Both platforms had equal safety, efficacy and predictability. At 6mo after operation, total HOAs, spherical aberration and coma increased in both groups(P<0. 01 ). The changes of total HOAs and spherical aberration in wavefront-guided and aspheric group were significantly less than those in wavefront-guided group ( P<0.05 ) , while the change of coma between two groups was not statistically significant ( P = 0. 657 ). Contrast sensitivity in the wavefront-guided and aspheric group recovered to preoperative levels under mesopic conditions at all spatial frequencies ( P > 0. 05 ), while contrast sensitivity in the wavefront-guided group recovered to preoperative levels at all spatial frequencies(P>0. 05).
CONCLUSION: Wavefront-guided and aspheric LASIK induced less HOAs and associated with better mesopic contrast sensitivity compared with wavefront - guided LASIK.

Eighty-five endophytic fungal strains were isolated from the roots、stems and leaves of Polygala tenuifolia Willd, among which, fifty-two from natural plants and thirty-three from cultivated ones. Sev-enty-six strains were classified as twenty-three fungal genera. The inhibitory activity screening to fourteen microbe were conducted research. The results showed that some endophytic fungi had remarkble inhibitory activities to Bacillus subtilis, Shigella sonnei, Escherichia coli, Candida albicans, Fusarium kyrushuense and they were all belonged to Fusarium, Alternaria, Aphanocladium respectively. All of the endophytic fungi isolated from Polygala tenuifolia showed no inhibitory activities to Staphyloccocus aureus, Salmonel-lae enteritis, Bibrio parahemolyticus.