Objective:To obtain eukaryotic expressing protein of chicken interferon ? (ChIFN-?) and research its anti-virus activity.Methods: Chicken interferon ? mature protein gene was cloned and amplified by reverse transcripition-polymerase chain reaction(RT-PCR) from the total mRNA in the lymphocyte of chicken blood stimulated with ConA for 4～10 hours.The gene was inserted into the expression vector pPICZa-A,which had been cleaved by EcoR I and Xba I.The recombinant vector was linearized by Sac I and transferred into yeast Pichia pastoris,strain X33,anti-virus activity of the recombinant cytokine was detected by the classical experiment cell pathological effect inhibition assay.Results:The result showed that the preparation of recombinant interferon had higher anti-virus activity(10?48 U/ml).Conclusion: The recombinant chicken interferon ? with anti-virus bioactivity has been obtained.

OBJECTIVETo establish a RP-HPLC method to determine the pharmacokinetics of ferulaic acid of ferulaic acid, Rhizoma Chuanxiong extraction and Naodesheng capsule in rat and assess the effect of other components in medical material and in compound on the pharmacokinetics of ferulaic acid.

METHODThe rats were orally treated with referential ferulaic acid, Rhizoma Chuanxiong extraction and Naodesheng capsule repectively. Blood samples were collected by cutting rats tails. Plasma was separated by centrifugation at 10,000 r x min(-1) for 10 min, and two-times methanol in volume was added to deposit proteins. After centrifugation, the upper liquid was transferred to filter. The concentration of ferulaic acid in serum was determined by RP-HPLC. The stationary phase was C18, and methanol-0.5% acetic acid (30:70) was taken as the mobile phase, A UV detector was used at 320 nm. The pharmacokinetic parameters were calculated with 3p97 program.

RESULTA good linear relationship of ferulaic acid was obtained from 0.05-1 mg x L(-1), the lowest limits of determination were 13 microg x L(-1). The plasma concentration-time curves of ferulaic acid were fitted with two-compartment models properly. The pharmacokinetics parameterst AUC(0-t), Cmax, CL of ferulaic acid showed significant differences between referential group and the other groups.

CONCLUSIONThe method applied for determination of ferulaic acid content in blood was simple, accurate and feasible for the study of ferulaic acid pharmacokinetics in rats. The results indicated that the other ingredients of Rhizoma Chuanxiong had remarkable influence on the pharmacokinetics of ferulaic acid. However, compatibility promotes the ferulic's absorption, enhances the ferulic's biological exploitability.

Animals ; Capsules ; Coumaric Acids ; administration & dosage ; pharmacokinetics ; Drugs, Chinese Herbal ; administration & dosage ; pharmacokinetics ; Male ; Pinellia ; chemistry ; Random Allocation ; Rats ; Rats, Sprague-Dawley

OBJECTIVETo elucidate how chronic prostatitis affects the expression and activity of the plasminogen activator (PA) system and relates to male infertility.

METHODSTwenty-three normal fertile males and 80 chronic prostatitis patients (40 fertile and 40 infertile) were included in this research. SDS polyacrylamide gel electrophoresis and fibrin overlay method were used to estimate the total PA, and tissue PA (tPA), urokinase type PA (uPA) in semen.

RESULTSTotal PA, tPA and uPA highly expressed in normal males, but decreased in the semen of the chronic prostatitis patients of both the fertile and infertile groups. However, there was no significant difference in total PA between the fertile and infertile patients.

CONCLUSIONChronic prostatitis reduces the secretory function and PA synthesis and secretion of the prostate, but the decrease of PA alone does not cause infertility. PA may be one of the tools for estimating the function of the prostate.

Adult ; Case-Control Studies ; Chronic Disease ; Humans ; Infertility, Male ; metabolism ; Male ; Prostatitis ; metabolism ; Semen ; metabolism ; Tissue Plasminogen Activator ; biosynthesis ; Urokinase-Type Plasminogen Activator ; biosynthesis

OBJECTIVETo analyze the characteristics of risky behaviors among different age groups of HIV positive female sex workers, and to explore the strengthening of their management.

METHODSFrom January to June 2014, 22 814 female sex workers were investigated and tested HIV in 117 sentinel surveillance sites in Yunnan Province, and 181 were confirmed to be HIV antibody positive, who accepted questionnaire surveys. According to the age, the participants were divided into the < 35 years old age group and ≥ 35 years old age group. The demographic characteristics, knowledge about HIV/AIDS and related risk behaviors characteristics of the two groups were obtained via questionnaire surveys among 181 HIV positive female sex workers, and in-depth qualitative interviews were conducted from among 12 HIV positive sex workers.

RESULTSHIV antibody positive rate was 0.8% (181), the age of the 181 subjects were (35.83 ± 9.17) years old, 76 cases (42.0%) were < 35 years old, and 105 cases (58.0%) were ≥ 35 years old. The differences of marital status, workplace class, the last work site among two groups were statistically significant (χ(2) = 20.80, 28.32, 7.83; P < 0.001, P < 0.001, P = 0.020, respectively). Among 181 HIV, the proportion of AIDS awareness was 95.6% (173); the proportion of drug use among ≥ 35 years old age group was 51.4% (54), which was higher than that in < 35 years old age group (34.2%, 26/76) (χ(2) = 5.30, P = 0.021). 96.7% (175) received condom promotion or HIV counseling and testing in the past year. The proportion of continuing to engage in sexual services over 5 years after HIV infection was 48.5% (51/105) and the proportion of receiving antiretroviral treatment was 69.5% (73/105) in ≥ 35 years old age group, which were higher than those in the < 35 age group (30.2% (23/76), 52.6% (40/76); χ(2) = 12.26, 5.36; P = 0.002, 0.021, respectively). In-depth interviews among 12 HIV positive female sex workers found that regular clients, not consistent use of condoms were the main cause of no condom use. Economic and livelihood factors are important reasons for continuing to engage in sexual services among HIV positive sex workers.

CONCLUSIONHIV positive sex workers still have high risk behaviors including continuing to engage in commercial sexual service and no condom use after knowing their HIV infection status, and the proportion of using drugs in the ≥ 35 years old group was higher than that in < 35 years old group.

Adult ; China ; Condoms ; Female ; HIV Seropositivity ; Humans ; Marital Status ; Risk Factors ; Risk-Taking ; Safe Sex ; Sex Workers ; statistics & numerical data ; Sexual Behavior ; Substance-Related Disorders ; Surveys and Questionnaires