Objective Polysaccharide from Sargassum thunbergii Kuntze(PST) was purified and degraded to study its anticoagulation activity.Diatomite was used for decolourization and NaCIO for degration of the polysaccharide to get three degraded products.Methods PST and the degraded products were applied in mice anticoagulation experiment by methods of cutting tail and capillary.Results All samples showed significant activities to extend bleeding time and blood coagulation time in mice,as well as to increase the amount of bleeding in mice.Conclusion Polysaccharide from Sargassum thunbergii Kuntze has significant anticoagulative activity and its anticoagulative activity is closely related with its molecular-weight.

Object To evaluate the antioxidative activity of the high molecular weight polyphenols from Sargassum thunbeergii Kuntze and Sargassum kjellmanianum Yendo. Methods Three kinds of evaluation systems for antioxidative activity were adopted to test their efficiency to scavenge radicals (including hydroxyl free radical ?OH, superoxide redical O? 2 and DPPH? free radical). Results The high molecular weight polyphenols from the two kinds of brown algae had strong activity to scavenge the radicals above. Furthermore, they acted almost as the same level. Conclusion The high molecular weight polyphenols from the two kinds of brown algae had strong antioxidative activity, thus they are the potential, natural and marine antioxidants.

Objective To clarify the diagnostic value of oblique axial scan parallel to the course of the anterior talofibular ligament in magnetic resonance imaging of anterior talofibular ligament in patients with chronic ankle instability. Methods 96 patients with ankle injury who were admitted into our hospital form June 2010 to March 2015 were examed with oblique axial scan beside the routine axial magnetic res-onance imaging examination. The grade of the anterior talofibular ligament injury and confirmed full-length views of the anterior talofibular lig-ament were analyzed by two musculoskeletal radiologists ( with more than 5 years experience) , and associated lesions were also checked. Re-sults The full-length view of the anterior talofibular ligament was checked in 69 patients (71. 8%) through the routine axial view and it was checked in 93 patients (96. 9%) through the oblique axial scan view. Anterior talofibular ligament injury was checked in 71 patients through the oblique axial scan, which was 19 patients more than that through the routine axial. Conclusion An additional oblique axial scan is use-ful in evaluation of anterior talofiibular ligament in patients with ankle injury.

Objective Benign prostatic hyperplasia ( BPH) is one of common diseases in aged males , and searching for new therapeutic drugs to BPH has been a research hotspot in recent years .This article was to study the inhibitory effect of eupatorium ja-ponicum thunb and foeniculum vulgare extract ( EFE) on benign prostatic hyperplasia in rats and its possible mechanism . Methods 48 male rats were randomly divided into 6 groups:normal control group without any treatment , model group of BPH treated with subcu-taneous injection of testosterone propionate , positive control group of BPH treated with dutasteride , high, middle and low dosage groups according to different EFE dosage (156 mg/kg, 234 mg/kg and 312 mg/kg).45 days after the treatment, the rats were sacrificed for measurement of the prostate glandular wet weight , the index of prostate gland ( PI ) , the morphological changes of prostate gland by light microscopy and the content of sex hormone . Results The prostate wet weight and PI decreased after EFE treatment for 45 days compared with the BPH model group(P<0.01 ).The hyperplastic glandular epithelium papilla waned and even disappeared in three EFE groups under the light microscope , and the epithelial cells became cubical or flat .High dosage EFE group (312 mg/kg) has simi-lar efficacy to dutasteride group .EFE significantly reduced serum testosterone content , dihydrotestosterone content and T/E2 ratio( P<0.05 ). Conclusion EFE can significantly inhibit prostatic hyperplasia in rats , and its mechanism is related to the decrease of the contents of serum testosterone and dihydrotestosterone as well as T/E2 ratio.

Objective To prepare monoclonal antibody against Prostate Stem Cell Antigen(PSCA) and explore the inhibitory effects of Anti-PSCA mAb in treatments of human prostate cancer xenografts in mice. Methods Balb/c mice were immunized by PC-3 cell line. After fusing and screening, the anti-PSCA McAb’s characterizations were determined. Solid tumors in mice were produced by subcutaneous injection with PC-3 cells in the flanks of the mice.We picked out 10 mice bearing human prostate cancer xenografts.They were divided into a treatment group (n_1=5) and a control group (n_2=5).200 ?g Anti-PSCA mAb was injected into abdominal cavity of each mouse of the treatment group and PBS for them of the control group.Anti-PSCA mAb and PBS were administered once every three days for consecutive three times.The mice survival conditions of two groups were recorded during 5 weeks.The serum PSA, the tumor weights and dimensions of survived mice were measured.The tumor volume inhibition rate was calculated. T-test was performed to compare differences of PSA in serum,tumor weights and volumes between the treatment and control groups.Routine pathological slides of tumor tissue were observed under light microscope to evaluate the range of tumor tissues damaged by Anti-PSCA mAb. Ultrastructure was observed with transmission electron microscope. Results A marine McAb was produced, which raised against PSCA,belonged to IgG1 subclass. The average PSA serum level of the two groups were(3.28?0.55)ng/ml and(7.26?0.43)ng/ml.The weights of tumors of the two groups were(0.95?0.17)g and(3.08?0.18)g.The volumes of them were(164.59?14.08)mm3 and(548.49?19.79)mm3.There are remarkable differences between the treatment group and the control group(P

Objective To investigate the anticoagulant activities of phlorotannins STP-1 and STP-2 from Sargassum thunbeergii Kuntze.Methods Coagulation time(CT)and bleeding time(BT)of mice were determined by in-vivo experiment to test the effect of phlorotannins by capillary method and cutting tail method respectively.Furthermore,activated partial thromboplastin time(APTT),prothrombin time(PT)and thrombin time(TT)were measured to evaluate the in-vitro anticoagulant activity of phlorotannins on New Zealand rabbits.Results Phlorotannins STP-1 had a significant effect on the prolongation of CT,BT,APTT,PT and TT,especially at the dosage of 1.0 mg/mL.Conclusion Phlorotannins STP-1 has both in-vivo and in-vitro anticoagulant activity.

Objective:To optimize the formulation of HA-CA liposomes and to study the anti-tumor effect of HA-CA liposomes on uterine cervical carcinoma mice.Methods:The methods of preparing HA-CA liposomes were screened,and the optimal fomulation was selected by the orthogonal design experiment with the the phospholipids/cholesterol ratio,the drug/lipids ratio and the pH value of PBS buffer was 7.4 as entrapment enfficiency was the index.The release of HA-CA liposomes was studyed by dialysis bag method.Uterine cervical carcinoma cells were inoculated subcutaneously into right axillary ofBal b/c mice,after continuous treatment of 14 d,we weighed the tumor and calculated the rate of tumor growth inhibition.Results:HA-CA liposomes were prepared by thin film hydration methods.The optimal parameters were as follows:the phospholipids/cholesterol ratio was 4∶1,the drug/lipids ratio was 1∶ 30,the pH value of PBS buffer was 7.4.The release curve of HA-CA liposome and CA liposome was basically the same,both of which a sustained-release efficacy.The cumulative release of HA-CA liposomes and CA liposomes were 78.39％ and 83.01％ at 48h.The inhibition rate of HA-CA liposomes on U14 cervical cancer mice was 60.39％ and significantly higher than that of positive control group,which was higher than that of CA and CA liposomes.Conclusions:HA-CA liposomes can significantly inhibit the effect of U14 cervical cancer nude mice higher than that of CA and CA liposomes owe to the modification of the active target ligand HA.

Objective To evaluate the effectiveness of mouth gag which can inserted into lavage tube during gastric lavage. Methods The Sixty- six cases of acute poisoning patients with gastric lavage according to random number table method were randomly divided into two groups, 33 cases in each group. Observation group used the inserted mouth gag, and the control group used the metal ones. Results The observation group were lower than the control group at the time required to insert the lavage tube [(2.23±0.19)s to (3.26±0.30)s] and the incidence of complication rate [18.2%(6/33) to 45.5%(15/33)], the oral cavity bleeding [6.0%(2/33) to 30.3%(10/33)], lavage tube displacement [0(0/33)to 24.2%(8/33)], lavage tube twisting[0(0/33) to 24.2%(8/33)], the difference was statistically significant (P<0.01), while higher in the rate of successful intubation[100.0%(33/33)] to [54.5%(18/33)], the difference was statistically significant, χ2=19.4,P<0.01. Conclusions The application of the mouth gag which can insert into gastric lavage improved the successful intubation rate, saved the rescue time, reduced the complication and improved the nursing quality.

Objective To investigate short term effect of brachypodium total hip arthroplasty for young patients with osteonecrosis, and to provide a reference for clinical treatment. Methods From January 2008 to January 2012, 44 cases of femoral head necrosis patients (46 hips) were selected, with age from 28 to 52, and average age (39.94 ± 5.25) years old; according to prosthesis type they were divided into control group and observation group, control group( 22 cases of 24 hips, using metal-on-polyethylene Duraloc total hip prosthesis replacement treatment), and in the observation group (22 cases of 22 hips, with use of ceramic-on-ceramic Metha Brachypodium total hip prosthesis replacement therapy). Patients were followed up for 12 to 36 months, Harris score, range of motion and other indicators were compared in two groups of patients. Results In observation group and control group, the level of WOMAC score, total Harris score and function, motion range, pain, abnormalities score were significantly improved compared with those before operation:in observation group:(27.46 ± 4.19) scores vs.(66.38 ± 5.84) scores, (92.73 ± 7.68) scores vs.(42.67 ± 7.28) scores, (45.28 ± 5.34) scores vs. (22.19 ± 4.19) scores, (4.46 ± 0.63) scores vs. (3.25 ± 0.66) scores, (39.54 ± 1.54) scores vs. (15.39 ± 2.86) scores, (3.45 ± 0.65) scores vs. (1.84 ± 0.32) scores;in control group:(28.16 ± 4.07) scores vs. (65.67 ± 6.22) scores, (93.03 ± 7.54) scores vs.(43.74 ± 7.57) scores, (44.65 ± 5.26) scores vs. (22.45 ± 4.37) scores, (4.74 ± 0.71) scores vs. (3.17 ± 0.59) scores, (39.87 ± 1.26) scores vs. (16.19 ± 2.55) scores, (3.77 ± 0.73) scores vs. (1.93 ± 0.43) scores, and there were significantly differences (P<0.05). There were no significantly differences between two groups (P>0.05). All patients were follower up for 12-36(23.19 ± 3.66) months. One case in observation group had leg swelling and healed after symptomatic treatment, 1 case in the control group had limb swelling, and 1 case had extensive subcutaneous bleeding .And they were cured after symptomatic treatment 1 case had femoral dislocation, and no secondary dislocation happened after the implementation of manual reduction. Conclusions Brachypodium ceramic ceramic total hip replacement therapy has same effect for young osteonecrosis patients compared to polyethylene and metal prosthesis in improving hip function, but the ceramic-on-ceramic prosthesis brachypodium has better performance in wear resistance with smaller friction coefficient is smaller, and is suitable for young patients.

Objective To preliminarily understand the genotype characteristics of Toxoplasma gondii in blood of HIV?posi?tive persons in Lincang City,Yunnan Province. Method Two segments of SAG2 gene of T. gondii from blood samples of HIV?positive persons in Lincang City were extracted and amplified by using the nested PCR method and the genotype was identified and compared with the standard strain(Type I)of Toxoplasma gondii. Results Thirty?five SAG2 genes(241 bp)and 35 SAG2 genes(221 bp)of T. gondii were amplified from 170 blood samples of the HIV?positive people,and 4 of each case were selected and digested with enzyme,then 2 aim gene fragments of each case were chosen and compared with the standard strain (Type I)of T. gondii. The digestion of SAG2 gene(241 bp)showed the genotype of the blood samples was Type I or Type II, and the digestion of SAG2 gene(221 bp)confirmed that the genotype was Type I. Conclusion It is preliminarily confirmed that the genotype of T. gondii in blood of HIV?positive persons in Lincang City,Yunnan Province is Type I.