Objective To analyze the epidemic characteristics of HIV/AIDS among older adults in Chongqing,and to provide scientific evidence for developing prevention and control measures.Methods The data were collected through the national AIDS reporting information system,SPSS 17.0 was used to analyze the data.Results From 2001 to 2015,a total of 10495 cases had been reported accumulatively,and HIV/AIDS cases was accounting for 31.1％.The study was showed that the main infection people was man and the main professional was the main farmer.Moreover,the main infection was heterosexual transmission and accounting for 91.5％.Conclusion The epidemic of HIV/AIDS aged over 50 was on the rapid rise from 2001 to 2015 in Chongqing,the publicity and education should be focused on them,to improve the relevant awareness and reduce their risk behavior.

Objective To evaluate the clinical application of contrast-enhanced digital subtraction MRI in musculoskeletal malignant tumors.Methods Fifty patients with musculoskeletal malignant tumors were scanned by contrast enhanced T 1WI with an injection of Gd-DTPA (0.1 mmol/kg), and digital subtraction was performed between post-contrast-enhanced images and pre-contrast-enhanced images. Musculoskeletal malignant tumors were evaluated by means of a contrast-to-noise ratio (C/Ns). Imaging sign of the musculoskeletal malignant tumors were compared between subtraction MR images and conventional contrast enhanced MR images.Results Contrast-enhanced digital subtraction MR images were better than conventional contrast enhanced MR images. All cases were confirmed by operation or pathology. All the lesions had higher C/Ns on subtraction MR imaging than on conventional contrast enhanced MR images. C/Ns was 109.74?5.10 (?s) for subtraction MR imaging and 23.61?3.16 for conventional contrast enhanced MR images (t=101.51, P

Experimental research showed that Gan Tang Zhi can influence blood clotting and plasma fibrinolytic system of rabbits, 15min after introvenous injecting 6.25mg/kg or 25mg/kg Gan Tang Zhi into rabbit it can pronouncedly prolong prothrombin time ( PT ) , thrombin time ( TT ) , and kaolin partial thromboplastin time ( KPTT ) ; and cause remarkable increase of fibrin degradation product ( FDP ) , Gan Tang Zhi can also shorten englobulin lysis time (ELT) and decrease fibri-nogen.

The influences of propylene glycol mannate sulfate (PGMS) on experimental thrombosis and thrombolysis in vivo were studies after iv 8. 125, 6. 25, 12. 5 , 25mg/Kg in rabbits, and the effect of antithrombosis of PGMS was compared with that of heparin. The results showed that PGMS possessed remarkable effect of antithrombosis. In order to explore the mechanism of antithrombosis of PGMS, we studied the influences on the fibrinolytic and coagulant function of rabbits. The results showed that PGMS can pronouncedly prolong the prothrombin time (PT), thrombin time (TT), kaolin partial thromboplastin time (KPTT), and enhance the activity of antithrombin-III (AT -III). PGMS can cause a remarkable increase in fibrin degradation product (FDP) , shorten euglobulin lysis time (ELT) , and a decrease in the contents of fibrinogen and plasminogen activity. These results suggested that PGMS probably exert the antithrombotic effect by inhibiting coagulation and activating fibrinolysis.

To observe the clinical effect of compound Yimucao oral liquid on postpartum lochiorrhea. Methods:A to-tal of 200 patients with postpartum lochiorrhea were randomly divided into the observation group ( 100 cases ) and the control group (100 cases). The patients in the observation group received 20ml compound Yimucao oral liquid three times a day for seven days, while those in the control group were given 15g Yimucao granules three times a day for seven days. After the treatment, the duration, amount, color and quality of lochia, lower abdominal pain, uterine involution and the status of postpartum infection in the two groups were compared. Results: The total effective rate in the observation (94. 0%) was higher than that in the control group(84. 0%). Compared with that in the control group, less average hemostasis time, better situation of abdominal pain, uterine involution and lower postpartum infection rate in the observation group were observed after the treatment(P<0. 05). Conclusion:Compound Yimucao oral liquid can promote the uterine involution. It’ s effective and safe in the treatment of postpartum lochirrhea.

AIM: To construct the recombinant adenovirus carrying fusion suicide gene CDglyTK with the C promoter(Cp),one of the key factors in controlling Epstein-Barr virus latent gene expression,and to investigate if the Cp mediates the expression of CDglyTK in CNE1 cells and kills the cancer cells specifically.METHODS: The tk,cd,Cp sequences were amplified by PCR and subcloned into corresponding sites of pDC316 vector with directional cloning method to construct the pDC316-CP-CDglyTK.The plasmid was analyzed by DNA sequencing and enzyme digestive method.The recombinant adenovirus of Ad-Cp-CDglyTK was packaged,amplified and purified in 293 cells,and the virus titre was determined by TCID50 method.The CDglyTK gene expression in CNE1 and NP69 were examined by reverse transcription-polymerase chain reaction(RT-PCR) after in vitro transfection in CNE1 and NP69 cells.The killing effect of Ad-Cp-CDglyTK/GCV+5-FC on CNE1 cells was detected by MTT method.RESULTS: The results of restriction enzyme digestion and DNA sequencing showed that the tk,cd,and Cp gene were inserted into the pDC316 plasmid in correct orientations.The titer of the recombinant adenovirus was 5.6?1012 TCID 50/L.The Cp fragment was amplified from the total RNA of the transfected CNE1 cells by RT-PCR.The mRNA of CDglyTK gene expression was not detected in NP69 cells.The MTT results showed that after administration of GCV and 5-FC,the killing effects of fusion gene were much better than those of single gene therapy.CONCLUSION: The C promoter specifically mediates the expression of CDglyTK in CNE1 cells.The Ad-Cp-CDglyTK/GCV+5-FC has much better killing effects on CNE1 cells than single gene.

The classification of lung tumor with the help of computer-aided diagnosis system is very important for the early diagnosis and treatment of malignant lung tumors. At present, the main research direction of lung tumor classification is the model fusion technology based on deep learning, which classifies the multiple fusion data of lung tumor with the help of radiomics. This paper summarizes the commonly used research algorithms for lung tumor classification, introduces concepts and technologies of machine learning, radiomics, deep learning and multiple data fusion, points out the existing problems and difficulties in the field of lung tumor classification, and looks forward to the development prospect and future research direction of lung tumor classification.

OBJECTIVE:To study the comprehension of drug instructions in licensed physicians in order to promote the rational drug use.METHODS:The licensed physicians were investigated in a randomized sampling questionnaire.RESULTS:All the investigated doctors were found to lack comprehension of drug instructions,the overall rate of which was 11.33%.The rate of not understanding was significantly different between the physicians and the physicians higher than attending physicians in rank(P

Objective:To dynamically describe the drug concentration change in different time in vivo to understand the in vivo be-havior patterns and rules of drugs, provide reference for performing individual treatment and avoiding adverse drug reactions and lay foundation for dynamic description of physiological pharmacokinetic model. Methods:A two-compartment model was established using Simulink dynamic simulation and used in curve fitting and parameter estimation. The results from the model were compared with those from 3P97 software. Results:There was no significant difference between the results from the dynamic model and those from 3P97 soft-ware. Conclusion:The dynamic model can be used to dynamically simulate two-compartment model for oral administration. The re-sults from the dynamic simulation are more direct, and can correct the fitting error in 3P97 software.

OBJECTIVE:To observe the efficacy and safety of Compound yimucao oral liquid combined with oxytocin in the prevention of postpartum hemorrhage and promotion of uterine involution for puerpera of vaginal delivery. METHODS:240 preg-nants with natural childbirth of vaginal delivery were randomly divided into control group and observation group. Control group was injected oxytocin 20 U in buttock after delivery. Observation group was additionally treated with Compound yimucao oral liquid 20 ml,tid for consecutive 2 weeks. Postpartum vaginal bleeding,uterine involution and incidence of adverse reactions in 2 groups were observed. RESULTS:Compared with control group,postpartum hemorrhage volume after delivery 2-24 h,incidence of post-partum hemorrhage,uterus size,uterine hemorrhage and lochia duration in postpartum 42 d in observation group were significantly better than control group,the differences were statistically significant(P<0.05);there were no significant differences in the hemor-rhage postpartum volume after delivery 1 h and 1-2 h and fundal height in postpartum 42 d in 2 groups(P>0.05). There were no fever,rash,nausea and other obvious adverse reactions in 2 groups. CONCLUSIONS:Compound yimucao oral liquid combined with oxytocin can obviously decrease the postpartum bleeding and promote uterine involution,with good safety.