Objective To investigate and analyze structure of risk perceived by people using HIV voluntary counseling and testing services and related factors.Method Two hundred and sixty eight VCT users were selected from 2 CDCs and 2 hospitals in Beijing and their perceived risks in the process of VCT were assessed by using self-administered question- naires.Factor analysis was performed to understand the relationship between different perceived risks,and risks perceived by different users were evaluated.Results Six factors were obtained from the factor analysis which included:fear of priva- cy disclosure,embarrassment,concern over the reliability of HIV tests,cost & time consumption,the tragic outcomes of HIV positive tests,and potential medical expenditures in the future.And the risks perceived by low and high income users were much higher than those perceived by middle income users.Conclusion There are clear structure of risks perceived by people using HIV voluntary counseling and testing,and people with different incomes have different levels of perceived risks.

Animals ; Caspase 1 ; genetics ; metabolism ; Disease Models, Animal ; Female ; Flurothyl ; Gene Expression Regulation ; Hippocampus ; metabolism ; pathology ; Interleukin-18 ; genetics ; metabolism ; Interleukin-1beta ; genetics ; metabolism ; Male ; RNA, Messenger ; Rats ; Rats, Sprague-Dawley ; Reverse Transcriptase Polymerase Chain Reaction ; Seizures ; metabolism ; pathology ; Time Factors ; Up-Regulation

AIM: To explore the surgical methods and clinical effects on young patients with congenital lower eyelid entropion.
METHODS: There were 27 patients ( 45 cases ) who suffered congenital lower eyelid entropion accepted the modified blepharosphincterectomy. The clinical effects and complications were evaluated.
RESULTS: After followed up for 6mo, 42 eyes were fully recovered, 3 eyes were unsuccessful and the cure rate was 93%, 5 eyes suffered minor lower eyelid skin folds, none had lower eyelid retraction and ectropion.CONCLUSION: Modified blepharosphincterectomy is an ideal cosmetic surgical treatment for young patients with congenital lower eyelid entropion. It is an effective surgical treatment with fewer complications.

Objective To investigate clinical characteristics of the multi-center breast DCIS (ductal carcinoma in situ), in order to improve the rate of early diagnosis. Methods Clinical data of 23 multi-center breast DCIS patients admitted and operated on from September 2003 to February 2009 at our department were retrospectively reviewed. Results There were 4 cases associated with nipple discharge,and 18 cases with preoperative negative physical examination (78%). In the preoperative examination within 6 months, the positive rate of mammography was 90% mainly characterized by the existence of diffuse and multiple small calcifications. The positive rate of MRI was 25%, B ultrasound had no positive findings. The patients that were confirmed multi-center breast DCIS by intraoperative frozen section examination received mastectomy and ipsilateral axillary L1, L2 lymph node dissection. Conclusion The diffuse and multiple small calcification is one of early clinical characteristics of multi-center breast DCIS. Although the disease has a wide range of lesion, it still is an early tumor, and has a favourite prognosis after comprehensive treatment.

Objective To investigate the effect of ropivacaine combined with dexanmethasone sprayed intratracheally in patients with resistant tubes and postoperative sore throat.Methods Eighty patients ASA Ⅰ-Ⅱ grade undergoing laparoscopic cholecystectomy were randomly divided into four groups by random digits tabel method,20 patients in each.2 ml of 0.75％ ropivacaine combined with 1 ml dexamethasone (group A) ; 2 ml of 0.75％ ropivacaine combined with 1 ml 0.9％ sodium (group B) ; 3 ml of 1％ tetracaine (group C); 3 ml of 0.9％ sodium (group D) were immediately intratracheal sprayed before intubation.The resistant tubes and degree of postoperative 24 h sore throat [by visual analog scale (VAS) scores],comfort [by Bruggrmann comfort scale (BCS) scores] and the incidence of sore throat were recorded.Results The resistant tubes appraised rate in group A,B and C was higher than that in group D [65.0％ (13/20),60.0％ (12/20),70.0％ (14/20) vs.5.0％ (1/20)] (P ＜ 0.05),but there was no significant difference among group A,B and C (P＞ 0.05).The incidence of sore throat at 24 h after surgery in group A,B and C was lower than that in group D [20.0％(4/20),25.0％ (5/20),25.0％ (5/20) vs.90.0％ (18/20)] (P ＜ 0.05),but there was no significant difference among group A,B and C (P＞ 0.05).The VAS and BCS scores in group A were better than those in group B,C and D [(0.52 ± 1.14) scores vs.(1.68 ± 1.42),(1.59 ± 1.33),(4.22 ± 1.95) scores,(2.80 ± 1.54) scores vs.(1.60 ± 1.19),(1.80 ± 1.20) and (0.45 ± 0.81) scores] (P ＜ 0.05),but there were no significant differences between group B and group C (P ＞ 0.05).Conclusion Ropivacaine combined with dexamethasone sprayedintratracheally can significantly increase the degree of postoperative resistant tubes,decrease the rate of sore throat after general anesthesia,and increase patient' s comfort.

Objective To study the clinical effect of specific immune therapy for children with allergic rhini-tis(AR)and its influence on the level of serum IL -17 and IL -35.Methods 174 children with AR were chosen as the research group,who were used specific immune therapy for 24 months.In same period,110 cases of healthy chil-dren were selected as the control group.Curative effect was evaluated by rhinitis symptoms total score(TRSS)points rate.quality of life was evaluated by nasal conjunctivitis related quality of life questionnaire(RQLQ)score.Pulmonary function before and after treatment,serum Eos counting,IL -17,IL -35 were detected.Results (1 )In research group,the total effective rate after treatment of 2 years was 89.66%,which was significantly higher than 71.26% after treatment of 1 year,there was statistically significant difference(χ2 =18.716,P <0.05).(2)In the research group, TRSS score and RQLQ score after treatment of 1 year and 2 years were lower than that before treatment(t =28.360, 42.850,7.749,42.850,all P <0.05 ),and the data after treatment of 2 years were less than that after treatment 1 year(t =19.207,10.558,all P <0.05).(3)In the research group,FEV1 /predictive value after treatment of 1 year and 2 years elevated compared to that before the treatment,the airway resistance value /forecast and Eos count were lower than that before the treatment(t =15.972,27.811,48.780,62.211,10.930,62.211,all P <0.05).FEV1 /pre-dicted value after treatment of two years was higher than that after treatment of 1 year,airway resistance value /forecast and Eos counts were less than that after treatment of 1 year(t =8.728,14.707,16.488,all P <0.05 ).(4)In research group,serum IL -17 after treatment of 1 year and 2 years reduced,while IL -35 rose (t =9.162,14.522, 10.235,14.522,all P <0.05).And IL -17 after treatment of 2 years was lower than that after treatment of 1 year,IL-35 was higher than after treatment of 1 year(t =5.795,7.731,all P <0.05).(5)Correlation analysis showed that the serum IL -35 and the level of IL -17 showed a negative correlation(r =-0.36,P <0.05).Conclusion Effect of specific immune treatment on children with allergic rhinitis is better,specific immune treatment can improve the clinical symptoms,inhibit IL -17,promote IL35 and improve lung function and quality of life of patients.

Objective To investigate the role of early enteral nutrition on TLR 4 signaling pathway in rats with acute necrotizing pancreatitis (ANP).Methods Sixty SD rats were randomly divided into three groups:sham operation group ( SO group ) , total parenteral nutrition group ( TPN ) , early enteral nutrition group ( EEN ) .One day after ANP model induction , the serum level of amylase was measured .Nutrient solution was given for five days , then the rats were sacrificed , and the blood , pancreas and colon tissue were collected.The serum levels of IL-6, TNF-αwere detected by ELISA .Pathologic changes of pancreas were observed by HE staining.The intestinal TLR4, NF-κB expression was measured by Western blot .Results Mortality rates of SO group, TPN group, EEN group were 0, 50%, 25%, respectively; the serum levels of amylase were (744 ±41), (3 278 ±219), (2 227 ±169) U/L, respectively;the serum levels of TNF-αwere (81.57 ±18.25), (465.72 ±42.47), (223.21 ±29.94)ng/L, respectively; the serum levels of IL-6 were (362.83 ±41.32), (932.46 ±57.21), (628.62 ±142.24) ng/L, respectively; the pancreatic pathologic scores were (0.91 ±0.15), (11.1 ±0.61), (6.9 ±0.62);the intestinal TLR4 expressions were 0.7506 ± 0.003, 1.3404 ±0.004, 0.9544 ±0.004;the intestinal NF-κB expressions were 1.33 ±0.50, 6.92 ±1.06,2.93 ±0.89.The values of TPN and EEN group were significantly higher than those of SO group (P<0.05). The values of EEN group were significantly lower than those of TPN group (P<0.05).Conclusions EEN can inhibit TLR4 and NF-κB signal pathway in gut , then reduce IL-6 and TNF-αexpression and relieve inflammatory reaction of ANP , finally decrease the mortality of ANP .

Objective To evaluate the effect of remifentanil pretreatment on myoclonus after etomidate injection.Methods Sixty patients undergoing scheduled for intestinal endoscopy under general anesthesia were divided into remifentanil group and control group by random digits table method with 30 cases each.Before 0.3 mg/kg etomidate was given,the patients in remifentanil group and control group were pretreated with remifentanil 0.5 μ g/kg or amount of 0.9％ sodium chloride.Myoclonus was observed and recorded.Nausea,pruritis and apnea were observed after procedures.Results The incidence of myoclonus was 73.3％(22/30) in control group,mild in 11 cases,moderate in 10 cases and severe in 1 case.The incidence of myoclonus was 6.7％(2/30) in remifentanil group and mild in 2 cases.There was significant difference in the incidence of myoclonus between two groups (P ＜ 0.01).In control group,the ratio of myoclonus was 14/16 in males and 8/14 in females.In remifentanil group,male and female each had 1 case of myoclonus.There was no nausea,pruritis and apnea in remifentanil group.Conclusion Pretreatment with 0.5 μ g/kg remifentanil reduces myoclonus after etomidate injection,male patients are more associated with the incidence of myoclonus than female patients.

A yeast strain KM12 , which can convert conjugated anthraquinone of rhub arb to free anthraquinone , was screened. And it is identified as Kluyveromyces marxianus by 26S rDNA. The percentage of free an-thraquinone in total anthraquinone of rhub arb as an indicator was used to investigate the effect of culture medium component and fermentation processing conditions, such as seed age, fermentation time and liquid volume on con-version of conjugated anthraquinone by KM12. The optimal fermentation medium was determined by orthogonal test L9(43) and the composition (%) is yeast extract 1, glucose 2, and rhubarb 2. The 5% (V/V) of the seed culture inoculated 36-48 h was inoculumed to fermentation medium in shake flask to ferment at 30℃, 200 r?min-1 for 4 days. TLC analysis showed most of conjugated anthraquinone decomposed or converted into free anthraquinone in fermented rhub arb . It was concluded that the side effect of severe diarrhea caused by Chinese medicine rhub arb can be alleviated through fermentation processing by KM12 strain .

Thermostable L-arabinose isomerase (L-AI) is the most potential enzyme for the biological production of D-tagatose from D-galactose, a novel functional factor. Gene araA encoding the L-arabinose isomerase from Bacillus stearothermophilis IAM 11001 was cloned and expressed in Escherichia coli. The araA gene of 1491 bp has 95% identity with L-AI from Thermus sp. IM6501. The GenBank accession number for the nucleotide sequence of this araA gene determined in this work is EU394214.The bacterium was induced by IPTG and analyzed by SDS-PAGE, approximately 59 kDa exogenous protein was observed on the SDS-PAGE. The recombinant L-AI was purified to electrophoretical homogeneity with affinity chromatography, and the activity of recombinant L-AI was also studied. The bioconversion rate of D-galactose to D-tagatose reached 39.4% after 24h whole cell reaction.