AIDS has become a global disease,and a variety of drugs are used in the treatment of AIDS ,but the interindividual variabilities in efficacy and toxicity remain important limitations for the use of these drugs.Studies have shown genetic polymor-phism is the main reason for interindividual variabilities of drug reaction.In recent years,scholars focused on the pharmacog-enomics of anti-AIDS drugs and found that genetic polymor-phisms,in large part,determine the interindividual variabilities of the responese of these drugs.This paper reviews the research progress on pharmacogenomics of the four types of anti-AIDS drugs commonly used in China,including nucleoside reverse transcriptase inhibitors (NRTIs),non-nucleoside reverse tran-scriptase inhibitors (NNRTIs),protease inhibitors (PIs)and integrase inhibitors (raltegravir).

Objective To investigate early nasogastric nutrition on patients with acute decompensated chronic heart failure,and observe its influence on patient's disease outcome.Methods From January 2012 to December 2013,100 cases with acute decompensated chronic heart failure were used as the research subjects,were randomly divided into experimental and control groups with 50 cases each group.Patients of two groups adopt expansion of blood vessels,strong heart,diuresis,and routine anti-infection treatment;Based on this scheme,experimental group adopt early nasogastric nutrition.The cardiac function index,the change of nutritional status and clinical curative effect and the result of follow-up within 1 year after discharge of two groups were compared.Results Left ventricular end-diastolic dimension (LVEDD) and left ventricular end-systolic dimension (LVESD) in two groups after treatment were decreased,and the descender of experimental group was superior to that of the control group with statistically significant difference (P ＜ 0.05).After treatment,left ventricular ejection fractions (LVEF) of two groups were improved,and the rise of experimental group was superior to that of control group with statistically significant difference (P ＜0.05).In the two groups after treatment,the serum brain natriuretic peptide (BNP) levels were significantly decreased,and the descender of the experimental group was more than that of control group with statistically significant difference (P ＜ 0.05).After treatment,body mass index (BMI),the level of serum prealbumin (PA),transferrin (TRF),and the total number of lymphocytes of two groups were increased significantly (P ＜ 0.05);and BMI,the level of serum PA and TRF,and the total number of lymphocytes of the experimental group were significantly better than those of the control group (P ＜ 0.05).The total effective rate of the experimental group was significantly higher than that of the control group (P ＜ 0.05).The exacerbation rates,readmission and mortality rate of experimental group follow-up within 1 year after discharge were significantly lower than that of the control group (P ＜ 0.05).Conclusions The early nasogastric nutrition on the patients with acute decompensated chronic heart failure was better able to improve patients' nutrition state,more conducive to patients with cardiac function recovery,improve the clinical curative effect,and reduce the exacerbation rates,and readmission and mortality rate.

Objective To study the process of removing bacterial endotoxins by ultrafiltration technology in dextran 40 injection. Methods Dextran 40 solution was ultrafiltrated by 100,200,and 300 kDa aperture ultrafiltration membranes with composite, PES and PVDF materials. In order to optimize ultrafiltration process,the content of effective component and endotoxins were detected by HPLC and kinetic-turbidimetry,respectively,and the change of particle size distribution in dextran 40 solution was analyzed before and after ultrafiltration. Results The transmittance of dextran 40 was close to the same MWCO and different membrane material. When MWCO reached 300 kDa,the transmittance was above 91%,which met the requirement of filtration. The endotoxin removal rates by 100-300 kDa composite ultrafiltration membranes were more than 99%. But the endotoxin removal rates of both of PES and PVDF membranes were less than 40%,which were unable to guarantee the removal efficiency of the endotoxin in dextran 40 solution. The particle size declined after ultrafiltration by 300 kDa composite membrane, and level of the insoluble particles decreased. Conclusion The 300 kDa composite ultrafiltration membrane can effectively remove endotoxin in dextran 40 solution with less main components loss. The material can meet requirements for producing dextran 40 injection.

Glioma is one of the most refractory tumors affecting the central nervous system. As a new technique, cryoablation has been considered for the treatment of glioma. Considering previous studies, we summarized the mechanism of cryoablation to treat glioma based on pathology and molecular biology perspectives. We also analyzed the indications, effects, and problems of cryoablation in clinical practice. Furthermore, we proposed that this technique may be used in future trends and applications. The mechanism of eradicating tumor cells by cryoablation involves the following:(1) using an ultralow temperature to induce necrosis and apoptosis;(2) changing the local microcirculation of tumors;and (3) adjusting anti-tumor immunity. As an alternative surgical treatment, cryoablation could improve the therapeutic effects by real-time medical imaging. Cryoablation combined with chemotherapy, radiotherapy, immunotherapy, and other methods could provide a more effective treatment for gliomas. Therefore, cryotherapy could be a possible treatment for glioma and become a sustained research field.

PKS gene was screened by PCR from thirty strains of spone-associated bacteria including twenty-one actinomycetes isolated from Craniella anstrialiensis and nine bacillus isolated from Dysidea avara in the South China Sea.As a result,a 669 bp KS domain gene was successfully amplified from Bacillus C89.BLAST analysis showed that the KS domains were most closely related to the KS sequences of Bacillus subtilis subsp.subtilis str.168 with 96% similarity.Phylogenetic analysis demonstrated the KS domain belong to trans-AT KS domains.This study demonstrated the existence of PKS gene in bacteria associated with sponge Dysidea avara for the first time,and provided proof for the hypothesis that sponge-associated bacteria are perhaps the true producers of many novel bioactive compounds in sponge.Meanwhile,this study lays a basis for the microbial screening for polyketide compounds production.

Objective To investigate the effects of ulinastatin on the expression of neutrophil CD_(11b) and CD_(18) during orthotopic liver transplantation(OLT).Methods Forty patients with liver diseases,ASAⅢorⅣ, undergoing OLT were randomly divided into two groups.Ulinastatin group(n=20)received intravenous infusion of ulinastatin 3?10~5 IU in 100 ml normal saline after skin incision and repeated every 4 hours thereafter.Control group received same amount of normal saline instead(n=20).Blood samples were taken immediately before skin incision,120 min after skin incision,30 min of anhepatic phase,60 min of neohepatic phase and at the end of operation for measurement of CD_(11b) and CD_(18) expression of neutrophil by flow cytometry.Results CD_(11b)/CD_(18) expression was increased significantly in control group 60 min of neohepatic phase and at the end of operation compared to the level before skin incision,but in ulinastatin group there was no significant change in CD_(11b)/CD_(18) expression during the whole procedures(P＞0.05).CD_(11b)/CD_(18)expression was significantly lower 60 min of neohepatic phase and at the end of operation in ulinastatin group than in control group(P＜0.01).Conclusion Ulinastatin can inhibit the increase in CD_(11b)/CD_(18)expression during OLT,and be helpful for reducing the inflammatory response.

Objective To investigate the effect of Hedysarum Polybotys saccharide(HPS)on insulin resistance rats.Methods The model of type 2 diabetic-insulin resistance rat was successfully made by STZ and high caloric diet.Then the rats were intervene by Metformin(MT)and HPS.Results Compared with the model group,the level of blood glucose,INS and CP were lowered,ISI were improved and FFA were restrained by HPS.Conc(?)sion HPS can reduce the insulin resistance in multiple ways.

Objective To provide theoretical and scientific evidences for plague control,through understanding the F1 antibody level distribution and affected factor of population having healed from plague from plague natural focus of Rat.flavipectus in Yunnan Province.Methods The places and population investigated were chosen according to plague surveillant data in Yunnan Province from 1986 to 2005,using caso-control study and quesfionary. All samples were detected by indirect hemagghtination(IHA),including 248 serum samples from population having heaIed from phsue in 23 counties as case group.295 senlm samples from healthy population inoculated with EV vaccine in 7 counties as artificial immunization group, and 235 serum samples from healthy population not inoculated it in a non-plagued foei county as negative comparison group,with the diagnosing standard for positive titor being not less than 1:20.Results(①The difference WSS statistically significant(X2=44.80,P<0.05)between plague and non-plagued foci with F1 antibody positive rates being 22.10%(120/543)and 0(0/235),respectively.② The F1 antibodv positive rate of case group,35.89%(89/248)and geometric mean titer(GMT)1:84,was higher than that of artiIicial immunization group,which was 10.51%(31/295)and with GMT 1:34,respectively,the difference being statistically significant(X2=50.41,P<0.0125);the positive rate of case group wgs hisher than the neganve comparison group,the difference being statistically significant(X2=103.39,P<0.0125):the posifive mte of artificial immunization group was higher than the negative comparison group,the difference being statisticallv significant(X2=26.23,P<0.0125).③The differences were not statistically significant in the F1 antibedy positive rates of case group for age,sex,nation and occupation(X2=1.88,2.01,5.46,0.04,P>0.05).④The difference was not statistically significant in 89 plague patients with positive F1 antibody at the time of onset and rehabilitation(t= 1.23,P>0.05).Conclusions ①Plague FI antibody in people distributes the sanle a8 the plague natural focus of Rat.flavipectus does in Yunnan Province.②For naturally infected plague patients,only 1/3 popuhtion get long- term immunity,and still 2/3 can be infected again.The protecting rate and effect of naturally acquired immunity due to infection of plague are better than amfieially acquired immunity from inoculation of EV vaccine.③For the population having healed from plague,the positive rotes of FI antibody are not affected by age,sex,nation and occupation,however for those whose plague F1 antibody is still positive after some time,the titer will remain or even increase.

Objective To genotype Yersinia pestis and explore intrinsic relationship among different ecotypes of Yersinia pestis in Yunnan foci.Methods A total of 171 strains from three types of Yersinia pestis,house mouse,wild-type mouse and Yulong Yersinia pestis,were tested.Twenty-three different regions (DFR) were used to genotype and cluster analysis was performed using BioNumerics 5.0.Results A total of 171 Yersinia pestis were divided into 7 genotypes by 23 DFRs,which were Genomovar5,Genomovar7,Genomovar9 and 4 newly discovered genotypes.The genotypes of all Yulong plague were Genomovar5.The genotypes of the 16 strains of wild-type mouse plague (the highland of northwestern Yunnan Province type) were divided to 3 genotypes,13 of them were Genomovar 7,2 of them were Genomovar9,and 1 of them was newly discovered genotype Genomovaryn1.The genotypes of the 148 strains of house mouse plague(the residential area of Yunnan and Fujian Provinces type) were divided into 4 genotypes,145 of them were Genomovar9,and 3 of them were newly discovered including Genomovar-yn2,-yn3 and-yn4.The ecological typing results of clustering showed genotype of Yulong plague was similar to the highland of northwestern Yunnan Province type(wild-type mouse plague),and the percentage of similarity was up to 87.20％,but only up to 73.75％ to the residential area of Yunnan and Fujian Provinces type (house mouse plague).The genotypes of 2 wild-type strains of the highland of northwestern Yunnan Province type(wild-type mouse) and main genotypes of the residential area of Yunnan and Fujian Provinces type(house mouse)were Genomovar 9.The genotype of Genomovar-yn 1 of the highland of northwestern Yunnan Province type was similar to Genomovar 7,but lack of DFR 11.The genotypes of Genomovar-yn2,-yn3 and-yn4 of the residential area of Yunnan and Fujian Provinces type were similar to Genomovar 9,but lack of DFR 10,DFR 9 and DFR 11,respectively.Conclusions One newly genotype strain is found in wild-type mouse plague and 3 newly genotype strains are founded in house mouse plague.Wild-type mouse strains are founded in the house mouse strains.The similarity of genotype between Yulong plague and the highland of northwestern Yunnan Province type (wild-type mouse plague) is high while the similarity between Yulong plague and the residential area of Yunnan and Fujian Provinces type(house mouse plague) is low.

Objective To explore the mechanisms of posterior pilon fractures and evaluate the curative effects of different types of fixation on the treatment of posterior pilon fractures.Methods We included in this retrospective study 20 patients with posterior pilon fracture who had been treated from January 2012 to January 2015 at our department.They were 10 men and 10 women,from 23 to 77 years of age (average,50.6 years).According to the classification by Yu Guangrong,5 cases belonged to type Ⅰ,3 to type Ⅱa,4 to type Ⅱb,and 7 to type Ⅲ.One was not indentified because of lacking CT examination.The mechanisms included ground level fall in 2 cases,motor vehicle accident in 7,fall off stairs in 5,sport injury in 2,fall from a bike in one and fall from a height in 3.More than 25％ of the articular surface was involved in 13 patients.Syndesmosis injury was identified in 6 patients by Cotton test during operation.Internal fixation varied accordingly.We recorded the mechanism,classification,proportion of the articular surface involved (more or less than 25％),and syndesmosis injury to figure out the characteristics of posterior pilon fractures.We used the Burwell-Charnley radiographic criteria to assess the postoperative reduction of the articular surface,and the Olerud-Molander scoring scale and visual analogue scale (VAS) to assess the ankle function.The curative effects of different types of fixation on the treatment of posterior pilon fractures were compared.Results Of the 20 patients,17 were available for follow-up for 6 to 36 months (average,17.8 months).Two patients received reoperation because of implant failure after cannulated screw fixation from anterior to posterior.The Burwell-Charnley radiographic evaluation revealed 12 anatoinical reducations and 8 fair reductions.The mean Olerud-Molander score for the 17 patients at the final follow-ups was 81.5 (range,from 35 to 100) and the mean walking VAS was 1 (from 0 to 3).Conclusions Posterior pilon fractures are mostly caused by medium to high energy violence,resulting from a combination of rotational and vertical forces.Since there is a high risk of implant failure,the cannulated screw fixation from anterior to posterior is not recommended.Good clinical outcomes are observed in the cannulated screw fixation from posterior to anterior and the plate/cannulated screw fixation for posterior pilon fractures.