AIM: To study the effects of spirulina (Spirin) in the prevention of liver fibrosis in rats.　METHODS: Wistar rats were divided into three groups: control group(n=8); CCl4 group(n=8), spirulina group(n=8). CCl4 group and spirulina group rats were induced by 40% CCl4 olive oil solution into models of liver fibrosis, meanwhile spirulina group was given the feed with spirulina powder for 12 wk. Liver histological changes, hydroxyproline(HYP) content in liver tissues, serum procollagen type Ⅲ(PC-Ⅲ) and hyaluronic acid(HA) levels were observed. 　RESULTS: The pathological studies showed that the liver fibrosis degree of spirulina group was obviously lighter than that of CCl4 group. Spirulina group had significantly lower levels of HYP(174 μg*g-1±37 μg*g-1), PC-Ⅲ(140 μg*L-1±37 μg*L-1) and HA(262 μg*L-1±92 μg*L-1) than those of CCl4 group (243 μg*g-1±49 μg*g-1, 274 μg*L-1±69 μg*L-1 and 484 μg*L-1±114 μg*L-1, respectively).　CONCLUSION: The experimental evidence suggests that spirulina can prevent the formation of liver fibrosis.

Objective To investigate the efficacy of paroxetine hydrochloride on elderly ulcerative colitis with anxiety /depression as adjuvant treatment. Methods The total of 80 cases of elderly ulcerative colitis with anxiety / depression were randomly assigned to the treatment and control groups ( n= 40 cases) . The mild or moderate UC patients in the control group were treated with mesalazine enteric coated tablets 1 g,tid,po or 1 g,qid,po, respectively;upon the complete treatment for 2 weeks, the patients with lower response were added with prednisone acetate tablets 10 mg,qid,po;and the patients in the treatment group were treated with paroxetine hydrochloride tablets starting from 10 mg·d-1 to 20 mg·d-1 3 days later, for 2 months in addition to the basic treatment as those in the control group. No alcohol, no coffee and no irritated foods were allowed during the treatment;regular reexamination was taken once for every 2 weeks. The clinical manifestations and colonoscopy Mayo composite score and Hamilton anxiety / depression ( HAMA/HAMD) score test were assessed for every patient before and after treatment, to detect the improvement after treatment. Results After treatment, the Mayo scores of the treatment group decreased significantly in comparison to the control group,with the total efficiency was markedly higher than that of the control group ( P<0. 05);HAMA and HAMD in treatment group were obviously lower than those before treatment ( both P<0. 01);HAMA and HAMD scores in the control group displayed no variation after treatment. Conclusion The adjuvant therapy of paroxetine hydrochloride remarkably improves the clinical and endoscopic manifestations of elderly patients with ulcerative colitis with anxiety/depression.

Objective To investigate the relationship between the serum c oncentration of TGF-? 1 and invasion and metastasis of gastric cancer,and the effect of surgical treatment on the serum concentration of TGF-? 1.M ethods The serum concentration of TGF-? 1 of 48 cases of gastric can cer was detected by ELISA 3 days before and 7-10 days after surgical treatment. Results The serum concentration of TGF-? 1 of gastric cancer before surgical treatment (404.6? 12.0) mg/L was higher than that after surg ical treatment (294.3?33.9) mg/L (P

Objective To observe the changes of serum endotoxin and interleukin-6 level before and after treatment at intestine get rid of filth and adjustment intestine microenviroment in patients with advanced stage liver cirrhosis and to oberserve the incidence of spontaneous bacterial peritonitis(SBP) and to research a method that can more efficient reduce the incidence of SBP.Methods Group A was given conventional treatment such as protection liver,supplement human albumin and uragogue;goup B was given FPA 0 2g tid po,continuous three days on the basis of two weeks conventional treatment,group C was given Tab comfort get 0 5g tid po,Changtai orally taken liquid,10ml tid po,lactulose 10ml tid po, for all 8 weeks,on the basis of group B treatment after pausing use FPA.Results Serum endotoxin and interleukin-6 levels in group A was not significantly changes after treatment,,SBP incidence was higher than both group B and group C;at group B,serum endotoxin and interleukin-6 levels decline,SBP incidence significantly drop afer treatment,at group C,serum endotoxin,interleukin-6 level and SBP incidence significantly drop,the difference was significant at statistics as compared with group A and B.Conclusions The treatment at intestine get rid of filth and adjustment intestine microenviroment can effectively reduce serum endotoxin and interleukin-6 levels and can significantly reduce the incidence of SBP.

Background:Personality characters will influence the future career planning and development of medical students.Therefore,it will be important in the field of medical education to survey their personalities.Study design:The personality questionnaire was developed according to the Big-Five characters.The content validity and consistent reliability were assessed.A total of 124 undergraduate medical students participated in this 44-item self-evaluation about their personalities.Results:The inter-item consistency reliabilities of the 44-items of Big-Five personality questionnaire were analyzed and discordant items were deleted(Crobach's Alpha from 0.484~0.782 before selection to 0.67~0.82 after selection).The content validity of this five dimensions ranged from 0.8 to 0.9(P

Objective To develop the scale to measure online intimate relationship and test its validity and reliability for college students.Methods A total of 1 105 subjects were recruited in this investigation for 6 times.Based on literatures,open-ended questionnaire investigations,semi-structured interview and experts' opinions,item analyses,exploratory factor analyses,validity and reliability analysis were conducted to develop the scale.Results The self-made scale showed a second-order structure,including intimacy,passion and commitment dimension.Confirmatory factor analysis showed that the model had good fit (χ2/df=3.47,GFI=0.92,NFI=0.90,CFI=0.92,TLI=0.90,IFI=0.92,RMSEA=0.08).The 3 dimensions had good internal reliability with Cronbach's α coefficients from 0.73 to 0.89 and retest reliability coefficients from 0.80 to 0.91.In addition,the scale had good external validity and convergent validity.ConclusionThe self-made scale has acceptable reliabilities and validities,which can be used to measure online intimate relationship for college students.

Objective:To explore the relationship among childhood psychological maltreatment,online aggressivebehavior and trait anger in college students.Methods:Totally 442 college students (226males,216 females,aged 16-25 years) were surveyed with the Psychological Maltreatment Scale (PMS),Adolescent Online Aggressive Behavior Scale (AOABS) and Trait Anger Scale (TAS).The bias-corrected percentile bootstrap method was used to analyze the mediating effect of trait anger between childhood psychological maltreatment and online aggressive behavior.Results:The scores of PMS,AOABS and TAS were positively correlated each other(r =0.44,0.37,0.48,Ps ＜0.01).The PMS scores had a significantly direct effect on the AOABS scores,its estimate was 0.27.The PMS scoreshad a significantly indirect effect on the AOABS scores through TAS scores(95％ CI:0.15-0.34).Conclusion:It suggests that the trait anger may be related to childhood psychological maltreatment and online aggressive behavior,and trait anger may play a partial mediating role between childhood psychological maltreatment and online aggressive behaviorin college students.

OBJECTIVE:To compare the effectiveness and safety of low-molecular-weight-heparin(LMWH)calcium and rivar-oxaban in preventing lower extremity deep venous thrombosis (DVT) in the elderly patients after surgery of replacement of frac-ture. METHODS:A total of 58 elderly patients underwent hip or artificial femoral head replacement were randomly divided into LMWH group (29 cases) and Rivaroxaban group (29 cases). All patients received basic prevention and physical prevention for DVT after surgery. Based on this,LMWH group was given Heparin calcium injection 4100 IU subcutaneously 10 h after surgery, for 10 d. Rivaroxabar group was given Rivaroxaban tablet 10 mg 10 h after surgery,once a day,for consecutive 10 d. The occur-rence of DVT and positive D-dimer were observed in 2 groups after surgery. The PT,APTT,TT,FIB and platelet counts abnormal-ity were also observed in 2 groups. RESULTS:There was no statistical significance in the incidence of DVT,the occarrence of pos-itive D-dimer,PT,APTT,TT,FIB and platelet counts abnormality 4,10 d after surgery between 2 groups(P>0.05). CONCLU-SIONS:LMWH and rivaroxaban both can be used for lower extremity DVT in the elderly patients after replacement of fracture sur-gery of and have similar therapeutic efficacy and safety.

Objective To evaluate the clinical efficacy of long-pulsed 1064 nm Nd ∶ YAG laser combined with intralesional injection of triamcinolone in the treatment of keloids.Methods A total of 78 cases were randomly divided into two groups.The treatment group was treated with long-pulsed 1064 nm Nd ∶ YAG laser combined with intralesional injection of triamcinolone.The control group was only given intralesional injection of triamcinolone.The efficacy and adverse reactions were determined at the end of the first and the second course,respectively,and follow-up for one year was conducted in order to observe the recurrence.Results When the first course was over,cure rate of 21.95 ％ and efficiency rate of 73.17 ％ were observed in the treatment group,while they were 10.81％ and 45.95 ％,respectively,in the control group; the efficacy rate was statistically significant different in these two groups (P＜0.05).After two courses,cure rate of 70.73 ％ and efficiency rate of 100 ％ were observed in the treatment group while they were 45.95 ％ and 83.78 ％,respectively,in the control group,showing that both of the rates were statistically higher in the treatment group (P＜0.05).Conclusions Compared to intralesional injection of triamcinolone,long-pulsed 1064 nm Nd ∶ YAG laser combined with injection of triamcinolone has a more satisfactory effect on keloids.

Objective To investigate the relationship of sperm morphology with seminal plasma zinc and sperm acrosin activity in male infertile patients.Methods 455 patients with male infertility were divided into 5 groups and 8 groups according to age and sperm morphology respectively.The sperm morphology,seminal plasma zinc and sperm acrosin activity were detected by the Diff-Quik stain,modified 5-Br-PAPS and modified Kennedy methods respectively.Results The percentages of morphologically normal sperm and seminal plasma zinc concentration in the infertile men groups were not different in various age groups(P >0.05 ).The sperm acrosin activity in the age group of 36-50 years was remarkably decreased (P <0.05),while which in other age groups had no statistical difference(P >0.05).Seminal plasma zinc concentration in the infertile men groups were not different in the 8 groups (P >0.05 ).Sperm acrosin activity was decreased with the percentage decrease of morphologically normal sperm (r =0.93,P <0.01).Conclusion The percentage of morphologically normal sperm is not affectd by the age and the seminal plasma zinc,which is positively correlated with the sperm acrosin activity.