Objective:To evaluate the anti-corrosion property of Ti-Zr alloy fabricated by laser solid forming technic in artificial saliva.Method:The corrosive behavior of Ti-Zr alloy fabricated by laser solid forming was studied by potentiadynamic polarization technique in artificial saliva at 37 ℃(pH=6.8).Ti-Zr alloy formed by casting was applied as the control.With the polarization curves given by the electrochemical corrosive measure system and the picture of corrosive plane given by SEM, the corrosive property of the Ti-Zr alloy were analyzed.Results:Ti-Zr alloy fabricated by laser solid forming showed more relatively positive corrosion potential, smaller corrosion current density and lower passive potential, and did not show any evidence of corrosive phenomena.Conclusion:Ti-Zr alloy fabricated by laser solid forming has good corrosive resistance in oral circumstances.

Purpose To study clinicopathologic feature of prostate cancer by complete embedding of radical prostatectomy specimen. Methods 108 cases of radical prostatectomy by systematic whole organ embedding were reviewed. Results The patient age ranged from 55 to 80 years ( mean 68. 1 years) . The preoperative average PSA value was 18. 3μg/ml. 59 cases ( accounting for 54. 6% of all prostatectomy cases) were in pT2 stage, while 23. 7% (14/59) in pT2a stage, 8. 5% (5/59) in pT2b, and 67. 8% (40/59) in pT2c. 49 cases (45. 4%)in pT3 stage, while 59. 2% (29/49) in pT3a, 40. 8% (20/49) in pT3b. 3. 6%(3/84)cases presented pelvic lymph node metastasis. 8. 3% (9/108) cases were graded as Gleason Score 6 or less, 61. 1% Gleason Score 7, 30. 6%(33/108)Gleason Score 8 or more. Gleason Pattern 5 component was found in 26. 9% (29/108) cases. Positive margin was observed in 25. 9% (28/108) cases, with 75% (21/28) in pT3 stage and 53. 6% (15/28) having Gleason Pattern 5. Patient in pT2 stage pres-ented mean PSA value of 14. 00 μg/ml, involved in no more than 2 biopsy cores in 68. 5% cases, and more than 5 cores in 4. 3%, while in pT3 stage, presented mean PSA value of 23. 82μg/ml, involved in no more than 2 cores in 19. 6%, and more than 5 cores in 28. 3%. The difference of involved core number was significant in pT2 and pT3 tumors ( P<0. 01 ) . 81. 3% cases graded Gleason Score 6 in biopsy was assigned to Gleason Score 7 or more in prostatectomy. Conclusions Completely sampling radical prostatectomy specimen should be recommended for accurate staging and margin status. Preoperative PSA value, Gleason Score of biopsy, involved core number by cancer is a still helpful parameter for clinical staging and risk estimate.

Objective To explore the profiles of physical activity domains among professionals with different occupational activity patterns.Methods A cluster random sampling method was used to recruit employed adults aged 30-60 years in Beijing as well as Zhejiang province.The information on the physical activity domains was collected with a revised Global Physical Activity Questionnaire (GPAQ).Results Of 3 326 professionals,about 30.79％,50.75％ and 18.46％ adults had Class Ⅰ (mostly sedentary reading or writing during work time) ,Class Ⅱ (mostly working with arms or legs with little effort) ,and Class Ⅲ (working with effort)occupational activity patterns,respectively.The median volume of leisure time activity and bicycling were all 0 Met-min/week,and no significant difference of domestic activity volume was detected among all the three classes of professionals.Of all the non-occupational activity volume among three classes of adults,domestic activity accounted for the most proportion (58.87％) performed by adults of Class Ⅱ,traffic activity accounted for the most proportion (34.2％) by those of Class Ⅲ,and leisure time activity accounted for the most proportion (12.7％) by those of Class Ⅰ.Most time was spent in sedentary behaviors by those of Class Ⅰ after hours.Conclusions Besides the generally low level of moderate activity,the diversity of the domains of physical activity among this population was evident.It is necessary to develop appropriate technology to improve physical activity for professionals with different occupational activity patterns.

Purpose To study the prevalence and feature of EGR gene rearrangement in prostatic carcinoma. Methods 242 consecu-tive core biopsies of prostatic carcinoma were evaluated. All biopsy specimens contained 6-14 cores from left and right sides separately delivered. The patient age ranged 58 to 91 years, and PSA value 5 ng/ml to more than 5 000 ng/ml. Immunohistochemistry ( IHC) for ERG protein overexpression and fluorescent in situ hybridization ( FISH) for ERG gene rearrangement were performed. Results 42 cases were detected positive for ERG by IHC ( positive rate 17. 4%) , and positive for ERG rearrangement by FISH either, with 19 ca-ses showing fusion through deletion and 23 through insertion, while no negative cases by IHC demonstrated positive by FISH. 5 cases revealed positive and negative staining in different carcinoma foci of ERG. No ERG positive staining and rearrangement were found in adjacent benign glands. Of positive cases, 12 cases were graded as Gleason score 6, 23 Gleason score 7, and 7 Gleason score 8 or more. Positive rate was 19. 6% in the group of PSA value less than 100 ng/ml, and 10% of more than 100 ng/ml, whereas 17. 2% in the group of clinical T3 stage or less, and 19% of clinical T4 and lymph node or remote metastasis. ERG rearrangement was associated with lower Gleason score, but not with PSA value, clinical stage and progression using theχ2 test analysis. Conclusions IHC is relia-ble for detection ERG rearrangement and helpful for interpretation of prostatic carcinoma. Multiple foci are common in prostatic carcino-ma. There is no significance between ERG rearrangement and disease prognosis.

Objective To observe the effect and adverse reactions of iron sucrose injection in treating old patients with iron deficiency anemia(IDA). Methods Thirty-two old patients with IDA were divided into injection group(17 patients)and oral group(15 patients)by random digits table. The effects of improvement on IDA and their adverse reactions were observed. Results After treatment, hemoglobin(Hb)in the injection group and oral group was(100.18±8.71)g/L and(85.80 ± 6.92)g/L(P＜0.01), and serum iron was(23.84±5.34)μmol/L and(14.63±3.29)μmol/L(P＜0.01).There were no obvious adverse reactions in injection group, whereas there were 6 cases(40%)with gastric and colon adverse reaction in oral group. Conclusions The treatment of intravenous injection of iron sucrose can be effectively used to cure old patients with IDA. It has better effect and has lower rate of adverse reaction.

Background Diabetic retinopathy (DR) is a common complication of diabetic mellitus,but its pathogenesis is still unclear.Adiponectin may restrain inflammatory reaction and reduce adhesion of vascular endothelial cell to influence diabetic microangiopathy.Relation between adiponectin and nitric oxide synthase (NOS)is less reported.Objective This study was to observe the effect of adiponectin on the expression of NOS in the retinas of diabetic rats.Methods Forty 8-10 weeks Sprague-Dawley (SD) female rats were collected.The rats were randomized into the normal control group (10 rats),adiponectin group (15 rats) and diabetic model control group (15 rats) using the random number table method.Tetraoxypyrimidine was intraperitoneally injected to establish the diabetic model in the rats of the adiponectin group and diabetic model control group,and 10 μg/kg of adiponectin was then injected into the rats of the adiponectin group.Western blot was used to detect the expression of the adiponectin protein in the rat retinas,and the expression of NOS in rat retina was located by immunochemistry.The use of the animals complied with the Regulations for the Administration of Affairs Concerning Experimental Animals by State Science and Technology Commission.Results The relative amount of adiponectin (adiponectin/β-actin)in the retinas was 0.85 ± 0.21,0.79 ± 0.17 and 0.42 ± 0.08,respectively,in the normal control group,adiponectin group and diabetic model control group,with significant differences among the 3 groups (F =4.236,P =0.000).The adiponectin/β-actin ratio in the retinas of the diabetic model control group was significantly declined in comparison with the normal control group and adiponectin group (q =6.615,P =0.000 ; q =6.026,P =0.000).The NOS levels (A value) in the retinas were 0.244 ± 0.035,0.262 ± 0.032 and 0.367 ± 0.066,respectively,in the normal control group,adiponectin group and diabetic model control group,showing a significant difference among them (F =3.752,P =0.001).The A value of NOS in the diabetic model control group was significantly increased in comparison with the normal control group and adiponectin group (q =3.488,P =0.002 ; q =3.079,P =0.005).NOS expression was localized to the inner nuclear layer and retinal ganglion cell layer.Conclusions Adiponectin reduces NO content in diabetic rat retinas by regulating NOS expression.

Objective By the reform of vocational nursing Maternal and Child Care course teaching methods,to solve the problems existing in higher vocational curriculum in five-year nursing specialty such as too much repetition in teaching content,low learning interest and enthusiasm in students,and not being able to reach target level of personnel training effectively.Methods Higher vocational nursing class 2 (51students) were extracted as the experimental group,class 3 (50 students) were extracted as as the control group from grade 2009.The experimental group adopted the project teaching method,the control group used the traditional teaching method.At the end of the course,the results of knowledge and operating skills between the two groups were compared.Results The total scores of the experimental group were better than the control group in memorizing theoretical knowledge examination,interpretation,application.There were no differences in individual skill examination skills assessment between the two groups,comprehensive skills assessment and total scores of the experimental group was better than the control group.Conclusions Application of project teaching method in higher vocational nursing specialty maternal and child care course teaching in higher vocational cohesion.It can effectively avoid the repetition of teaching content which may lead to the low utilization rate in class,stimulate students' interest in learning,and develop students' comprehensive occupation ability,and make vocational course objectives to achieve high stage.

Objective To introduce the research progress of the modern methods in evaluating de qi sensation in acupuncture and moxibustion, and to analyze the current research situation and major problems. Method The objective evaluation methods majorly used to estimate qi sensation were summarized. Result The currently used evaluation methods basically include scales and cerebral function imaging, while the rest methods are still in the beginning stage. Conclusion As a subjective feeling, de qi sensation is difficult to determine and quantify objectively, and there lacks an objective standard. The study on the mechanism of de qi sensation is relatively insufficient and superficial.

Objective:To study the related factors of severe acute radiation-induced lung injury (SAR) caused by IMRT and concurrent chemotherapy for non-small cell lung cancer. Methods:We retrospectively analyzed the data of 2 323 non-small cell lung cancer pa-tients who underwent IMRT radiotherapy and concurrent chemotherapy at the Department of Radiotherapy of Tianjin Medical Univer-sity Cancer Institute and Hospital from January 2010 to January 2014. We analyzed the clinical factors and parameters that affect dose by univariate and multivariate analysis. Results:A total of 2 323 patients enrolled and 1 241 cases suffering from acute radiation-in-duced lung injury with the rate of 53.4%. Only 185 cases suffered from SARP with a rate of 7.96%. Univariate analysis showed that the gender, histopathological type, total radiation dose, V5 (%), and average dose rate are not related to SARP (P>0.05). By contrast an age of>60 years, 1%predicted FEV, docetaxel+carboplatin/cisplatin chemotherapy, V20 (%), V30 (%), and mean lung dose (MLD) are sig-nificantly related to SARP (P<0.05). Multivariate analysis showed that a patient age of>60 years, docetaxel+carboplatin/cisplatin che-motherapy, V20 (%), and V30 (%) are the independent risk factors of SARP. Conclusion:Among the non-small cell lung cancer patients undergoing IMRT radiotherapy and concurrent chemotherapy, further attention should be given to elderly patients, patients receiving docetaxel and platinum chemotherapy, as well as V20 and V30 with high doses. The necessary preventive treatment should be given to reduce the incidence of SARP, improve the quality of life of patients, and reduce the incidence of respiratory failure and mortality.

ObjectiveTo observe the clinical efficacy of relaxing needling plus joint needling from the Internal Medicine in treating post-stroke spastic hemiplegia.MethodTotally 121 eligible subjects were randomized intoan ordinary acupuncture group (61 cases) and a relaxing-joint needling group (60 cases). The two groups were treated for 2 weeks, 5 sessions each week. The spasm of the lower limb was evaluated by using Fugl-Meyer Assessment Scale (FMA), modified AshworthScale (MAS), Tardieu Scale, and Activities of Daily Living (ADL) before and after treatment. Besides, 4 patients from each group were randomly selected for the three-dimensional gait analysis, and the dorsi-extension, range of motion (ROM) of ankle, strephenopodia, and heel-raising height were observed.Result and ConclusionRelaxing-joint needling and ordinary acupuncture both can produce significant efficacies in treating post-stroke spastic hemiplegia. The relaxing-joint needling produced more significant efficacies in improving the body balance, ROM, muscular tension, and lower limb spasticity compared to ordinary acupuncture. It’s plausible that relaxing-joint needling improves the strephenopodia and hemiplagia gait through renovating body balance, ROM, muscular tension, and lower limb spasticity. Since the three-dimensional gait analysis can analyze the dorsi-extension, strephenopodia, and heel-raising height, thus it can be used to evaluate the change of the spastic gait of post-stroke hemiplegia in amore objective, elaborate, and correct way.