Objective:To evaluate the bioequivalence of two kinds of domestic nimesulide granules in healthy volunteers. Meth-ods:In self-control and two-way crossover design, 18 healthy male volunteers were divided into two groups randomly. Each subject was given 100 mg test or reference nimesulide granules with single dose. The concentration of nimesulide in plasma was determined by HPLC. The concentration of nimesulide in plasma was calculated and compared statistically to evaluate the bioequivalence between the two kinds of granules by DAS 2. 1 software. Results:The main pharmacokinetic parameters of test and reference preparations were as follows:Cmax was(9. 28 ± 2. 05) and(9. 41 ± 2. 31)μg·ml-1;Tmax was(3. 50 ± 1. 86)and(3. 56 ± 1. 65)h;T1/2 was (3. 43 ± 0. 85) and(3.38 ±0.68)h;AUC0-24 was(77.78 ±18.42)and(81.69 ±23.50)μg·ml·h-1;AUC(0-∞) was (79.07 ±19.21)and(82.92 ± 24. 11)μg·ml·h-1, respectively. The 90% confidential interval of ln(AUC0-24), ln(AUC0-∞) and ln(Cmax) of the test preparation was 90. 7%-107. 9%,90. 6%-111. 2% and 90. 7%-103. 0%, respectively. The relative bioavailability was (96. 7 ± 37. 6)%. Con-clusion:The two nimesulide granules are bioequivalent.

Objective To screen the 12 mers-phage random peptide library using the serum from the new model rabbit and to identify the immuno-protection of the positive phages. The new model infected with Schistosoma japonicum was proved that has a high protection against the challenge infection. Methods After being absorbed by E.coli antibody, the serum of the new model rabbit was used to screen the peptide library. Through three rounds of biopaning and enriching, lots of positive phages were obtained and their antigenic ability was tested. Every mouse was immunized by subcutaneously injecting 1?10 14 pfu positive phages from the new model rabbit serum respectively at 0-2-4 th week. After 4 weeks of the last immunization, the challenge infection was performed. At the same time, several control groups including the group immunized with the phages from the rabbit serum of the normal model infected with Schistosoma japonicum, the group immunized with the original 12 mers-phage random peptide library and the control group of challenge infection were arranged. Results ①The positive clones of phage(1?10 14) from the new model rabbit serum were strongly recognized by the rabbit serum of the new model, weakly recognized by the rabbit serum of the normal model infected with Schistosoma japonicum,but not recognized by the serum of healthy rabbit. ②The reduction rate of adult worms and liver eggs induced by phages screened with the rabbit serum of the new model group and the nomal model group and that induced by the original peptide library were respectively 27 2% and 38 8 %, 17 8% and 35 0%, 4 5% and 6 0% Conclusion The new model group obtained a higher reduction rate of adult worms than the nomal model group (P

Objective To investigate the effect of anti-syphilis treatment on the perinatal outcomes and neonatal prognosis in pregnant women complicated with syphilis.Methods One hundred and ninety eight pregnant women complicated with syphilis were collected from Chengdu Hospital of Infectious Diseases during January 2010 and January 2012,including 98 cases received standard treatment,59 cases received nonstandard treatment and 41 cases did not receive treatment.Pearson x2 and partition of chi-square were used for the comparison of pregnant outcomes,neonatal prognosis and negative rates of rapid plasma circle card test (RPR) among 3 groups.Results The incidence of adverse pregnancy outcomes,including miscarriage,prematurity,still birth and congenital malformation were 4.08％,27.12％ and 63.41％ in three groups,respectively.The incidence of congenital syphilis,low birth weight,asphyxia in infants and neonatal death raised in from standard-treatment group,nonstandard-treatment group to untreated group.Congenital syphilis rates were 2.04％,18.75％ and 35.29％ in three groups,respectively.RPR titers in newborns from mothers with high RPR titer (≥ 1 ∶ 8) in standard-treatment group were significantly lower than those in nonstandard-treatment group and untreated group (x2 =37.122,P ＜ 0.01).RPR negative rates were 100.00％,59.26％ and 25.00％ in three groups,respectively (x2 =18.839,P ＜ 0.01).Conclusion Standard anti-syphilis treatment can improve pregnant outcome,neonatal prognosis and reduce the incidence of congenital syphilis.

Objective To observe the influencing of Yiqi Huayu Jiedu Prescription on the growth of HepG2 nude mice transplantation tumor and the expression of related factors of vascular mimicry. Methods Models of transplanted tumors, which were made by HepG2 cells in nude mice, were randomly divided into 7 groups, Yiqi Huayu Jiedu Prescription group, Astragali Radix group, Curcumae Rhizoma group, Paridis Rhizoma group, Gecko group, cis-platinum group, and model group. Except for the model group, the rest groups were given relevant medicine for intervention. 21 days later. HIF-1α, MMP-2, MMP-9, and E-cad were detected by immunohistochemistry, and Twist1 and Bcl-2 were detected by fluorescence quantitative PCR. Results Compared with the model group, tumor volume in the rest groups decreased (P<0.05), and the effect in the Yiqi Huayu Jiedu Prescription group was more obvious than the Astragali Radix group, Paridis Rhizoma group and Gecko group (P<0.05);The expression of vasculogenic mimicry structure was rare in each group, and the model group and cis-platinum group were the most obvious;Except for the Astragali Radix group, the expressions of HIF-1α, MMP-2, and MMP-9 showed statistical significance compared with model group (P<0.05);The expression of E-cad in the Yiqi Huayu Jiedu Prescription group and Astragali Radix group showed statistical significance (P<0.05);The expression of Bcl-2 in the Yiqi Huayu Jiedu prescription group, Paridis Rhizoma group, and Gecko group decreased significantly compared with the model group (P<0.05);The expression of Bcl-2 in the Yiqi Huayu Jiedu prescription group was much better than the other groups (P<0.05);The expression of Twist1 showed statistical significance in the Yiqi Huayu Jiedu Prescription group, Curcumae Rhizoma group, Paridis Rhizoma group, and cis-platinum group (P<0.05). Conclusion Yiqi Huayu Jiedu Prescription can reduce expression of HIF-1α, Twist1, Bcl-2, MMP-2, and MMP-9, and increase expression of E-cad, thereby inhibiting the formation of vascular mimicry.

Objective To investigate the prediction of maternal HBV transmission by breast milk of postpartum women with chronic HBV infection.Methods HBV DNA levels in serum and breast milk weredetected by fluorescent quantitative polymerase chain reaction in 64 postpartum women with chronic HBV infection.HBV DNA≥1.0×103copies/ml was defined as positive,and correlation analysis was conducted.Results HBV DNA positive rate was 78.1%and 62.5%in serum and breast milk respectively,with a HBV DNA range of 1.05×103～3.87 ×104copies/ml in breast milk.When HBV DNA in serum was 1.0×105～1.0×107copies/ml,the HBV DNA positive rate in breast milk reached to 94.9%;however,when HBV DNA in serum was 1.0×103～1.0×104copies/ml,the positive rate in breast milk was only 18.2%.Conclusion The HBV DNA positive rate of breast milk in postpartum women with chronic HBV infection is correlated with the HBV DNA levels in serum;and breast-feeding should be avoided for postpartum women with HBV DNA≥1.0×105copies/ml in the serum.So serum HBV DNA detection is necessary in antenatal care for women with chronic HBV infection.

Objective:To analyze the epidemiological and clinical characteristics of hand-feet-mouth disease (HFMD).Methods:The clinical and pathogenic data of 1 976 cases with HFMD hospitalized in Public Health Clinical Center of Chengdu from August 2018 to September 2019 were retrospective analyzed.Results:Among the 1 976 cases of HFMD, 1 094 cases (55.36%) were one to two years old, and 803 cases (40.64%) lived in the main urban area. The majority were scattered patients (1 344 cases, 68.02%). There were 1 348(72.7%) of 1 854 cases mainly infected by Coxsackie virus 6 (CV-A6). The main distribution of rashes in children infected by CV-A6 were palm/soles, trunks, limbs, oral ulcer and perioral areal, lips and hip. The types of rash were maculopapule, vesicle, and bulla. Fever (1 543 cases, 78.09%) was the main concomitant symptom. Acute tonsillitis (811 cases, 41.04%), myocardial injury (767 cases, 38.82%), and herpetic angina (658 cases, 33.30%) were the most common complications. The incidence of onychomadesis were nine (7.03%) among the 128 patients during follow-up.Conclusions:CV-A6 is the main pathogen of the HFMD prevalence. Children less than two years old are susceptible and the main symptoms of HFMD are rash and fever.