Spinal cord injury is a kind of central nervous system injury disease caused by trauma. It was found that the up-regulation of autophagy after spinal cord injury could promote the repair of spinal cord injury. Under the condition of stress, autophagy can reduce the number of misfolded proteins and damaged organelles in cells to maintain the stability of intracellular environment. Chinese medicine with Huoxue Quyu Tongluo (against stasis obstructing meridian) efficacy has attracted much attention in the treatment of spinal cord injury, which may associate with the role of regulation of autophagy.

AIM: To establish a fingerprint analytical method for ensuring the quality of Banlangen Granule (Isatis indigotica Fort). METHODS: According to pre column derivatization HPLC method, gradient elution with sodium acetate buffer (pH6.4) acetonitrile (95∶5) in a BDS C 18 column, was applied to detect amino acid at UV 360nm; and the coefficients of cosine of include angle and distance were employed to judge the quality similarity of the samples. RESULTS: The HPLC method is accurate and reproducible and makes almost all the peaks separated; and the two coefficients can show the similarity of each sample. CONCLUSION: The developed method is simple, accurate and operable and can efficiently control the quality of Banlangen Granule.

AIM: To study the best harvest time of Isatis Indigotica Fort.. METHODS: The adenosine content was determined by HPLC, and at the same time, the dry substance accumulation, the alcohol extract of the herb were also compared at the different growth periods of Isatis indigotica Fort.. RESULTS:During its whole growth period, the contents of adenosine and alcohol extract increase and very fast before November. The dry substance accumulates highly in December. CONCLUSION: In consideration of the yield and the contents of adenosine and alcohol extrat, the best harvest time should be between November and December.

Objective To evaluate the clinical value of the isothermal RNA amplification assay (SAT) for detection of Mycobacterium tuberculosis in sputum samples.Methods Sputum specimens from 230 patients with diagnosed tuberculosis and 78 cases of other respiratory diseases during September to December 2011 were detected using SAT,BD960 culture,LowenStein-Jensen( L-J ) culture and concentrated smear simultaneously.The samples with different results between SAT and BD960 culture were tested by Mycobacterium tuberculosis PCR fluorescence diagnosis kits.Strains were identified by amplification and sequencing the BD960 culture-positive isolates and SAT amplification products.Positive detection rate of SAT and other three methods for patients with tuberculosis were compared by chi-square test.Results Using the results of BD960 culture as the golden standard (7 cases of pollution bacteria in BD960 culture was rejected ),the sensitivity,specificity,positive predictive value,and negative predictive value of SAT was 90.5％ (95/105),84.2％ (165/196),75.4％ (95/126),94.3％ (165/175),respectively.The agreement rate of SAT and BD960 culture was 86.4％ (260/301).For 223 tuberculosis patients,the positive detection rate of SAT,BD960 culture,L-J culture and concentrated smear was 56.5％ ( 126/223 ),45.7％ ( 102/223 ),41.7％ ( 93/223 ) and 37.2％ ( 83/223 ) respectively.The positive detection rate of SAT is significantly higher than the other three methods (x2 =4.087,P ＜ 0.05 ).Conclusion SAT,as a new technology for laboratory diagnosis of TB,has high specificity and sensitivity.The operation is fast and simple,and the pollution rate is low.It is a promising laboratory diagnosis method.

OBJECTIVE:To explore the effects of entecavir combined with chemotherapy on positive HBV in tumor patients with normal liver function. METHODS:106 patients were selected and divided into observation group (44 cases) and control group (62 cases) according to therapy plan. Control group received routine chemotherapy according to tumor condition;observa-tion group was given Entecavir tablets orally 0.5 mg,qd,before 1 week of chemotherapy,for consecutive 1 week. HBV reactiva-tion rate,recurrence rate of severe hepatitis,mortality rate,serum level of ALT before and after treatment and the incidence of ADR were compared between 2 groups. RESULTS:4 patients of observation group and 2 of control group withdrew from the study. HBV reactivation rate,recurrence rate of severe hepatitis and mortality were 7.5%,0,0 in observation group and 56.7%, 50.0%,13.3% in control group,with statistical significance between 2 groups(P<0.05). Before chemotherapy,there was no sta-tistical significance in serum levels of ALT between 2 groups(P>0.05);after chemotherapy,the serum levels of ALT in 2 groups were increased significantly,and the control group was significantly higher than the observation group,with statistical significance (P<0.05). There was no statistical significance in the incidence of ADR between 2 groups(P>0.05). CONCLUSIONS:Entecavir can effectively prevent HBV reactivation and decrease the recurrence rate of severe hepatitis and mortality rate in tumor patients dur-ing chemotherapy, and doesn’t increase the risk of ADR.

Objective To explore the value of CD+4T lymphocyte count in laboratory diagnosis of AIDS complicated with pulmonary tuberculosis.Methods Forty-three patients with acute tuberculosis were selected as the subjects.Among them,14 patients had typical tuberculosis(X-ray or chest CT),29 cases were atypical tuberculosis(X-ray or chest CT).43 patients were examined by CD+4T lymphocyte count,sputum smear tuberculosis acid-fast bacilli test and T-SPOT.TB(interferon-γ release test),and the results of various methods were compared.Results The The number of CD+4T lymphocytes in patients with typical pulmonary tuberculosis was (151.26±59.47)/μL,and that in atypical pulmonary tuberculosis was (69.11±19.65)/μL,the difference was statistically significant(t=5.124,P<0.05);and with the reduction of CD+4T lymphocytes,AIDS patients showed more atypical pulmonary tuberculosis.The positive detection rates of CD+4T lymphocyte count,T-SPOT.TB and sputum smear were 86.05%,16.28% and 51.16% respectively.The positive rate of combined detection of three methods(90.70%) was significantly higher,the differences were statistically significant(x2=5.123,6.023,7.125,all P<0.05).Conclusion CD+4T lymphocyte count is of great value in the laboratory diagnosis of AIDS complicated with tuberculosis,and it is worthy to be widely carried out in clinical practice.

Objective To investigate the relationship between pancreatic beta cell function and liver function in hepatitis B cirrhosis with different glucose metabolism status.Methods A total of 247 patients with hepatitis B cirrhosis were included and divided into 3 groups according to measurement of fasting blood glucose (FBG),and 2h blood glucose in 75g oral glucose tolerance test(2hPG),normal glucose metabolic status group(group A,n =47),glucose tolerance impairment group(group B,n =103) and diabetes mellitus group(group C,n =97).Data of fasting and 2h postprandial blood glucose,C-peptide,insulin and glycosylated hemoglobin (HbA1c),pancreatic beta cell function index(HBCI),insulin sensitivity index (ISI),hepatitis B virus load were collected and analyzed.Results Abnormal glucose metabolism was observed in 81％ patients with hepatitis B cirrhosis,while hepatogenic diabetes accounted for 39.3％.2 hPG[(6.29 ± 3.78) mmol/L,(10.56 ± 4.26) mmol/L,(17.34 ± 5.9) mmol/L],FBG [(4.72 ±2.15)mmot/L,(5.68 ±2.81) mmol/L,(9.82 ±5.1) mmol/L],HbA1c [(4.5 ± 1.2)％ (10.56 ±4.26) ％ (9.5 ± 3.0) ％],HBV-DNA [(3.78 ± 0.52),(4.82 ± 0.61),(6.02 ± 0.63)] were compared in group A,group B and C.2hPG,FBG,HbA1c and HBV viral loads in group A were significantly lower than group B and group C (F =93.23,41.35,84.93,237.2,P ＜ 0.05).Fasting insulin [(15.65 ± 4.17) mU/L,(26.53 ± 7.22) mU/L,(30.18 ± 3.23) mU/L],postprandial insulin [(45.28 ± 10.22) mU/L,(106.8 ± 20.74) mU/L,(141.68 ±20.25) mU/L],postprandial C peptide [(5.96 ± 4.82) mU/L,(9.86 ± 5.46) mU/L,(9.54 ± 6.42) mU/L] and ISI [(-5.96 ± 0.61),(-4.92 ± 0.42),(-5.03 ± 0.51)] were compared in group C,group B and A,those values in group C were lower than group A and B,the defferences were stastistically significant (P ＜ 0.05).HBCI in three groups were (5.66 ± 0.64),(5.32 ± 1.01),(4.30 ± 1.53),respectively,the defferences were stastistically significant(F =27.55,P ＜0.05).Patients in group C with Child-Pugh C score was much more than group A and B,the defference was stastistically significant (x2 =48.6,P ＜ 0.01).Conclusion Hyperinsulinemia,increased insulin resistance and decreased insulin secretion exist in hepatitis B cirrhosis patients,and they are closely related to liver function.

Objective To study the prevalence of HIV-1 drug-resistant strains in antiretroviral therapy-naive HIV-1 infectors,and provide background information for HIV-1 drug resistance survey and clin-ical antiretroviral therapy in Beijing in 2008. Methods Referring to the guidelines for HIV drug resistance threshold survey(HIVDR-TS) of WHO, collecting 60-70 plasma samples of HIV-1 infectors who were detec-ted in 6 months and not more than 25 years,we detected HIV-1 pol genotype and genetic mutations associated with drug resistance,counted the prevalence of drug-resistant strains, and evaluated the prevalent level. Re-Sults Of 61 plasma samples answering for the standards, 50 were successfully sequenced and genotyped pol sequence. The major infection route was homosex, which accounted for 62%. B, CRF01_AE, and CRF07_ BC were major genetic subtype, which accounted for 42%, 28% and 26%, respectively. One Pl-resistant strain was found, the incidence of which was 2% (1/50). One NRTI-resistant strain was found, the inci-dence of which was 2% (1/50). No NRTI-resistant strain was found, the incidence of which was 0. The in-cidence of drug-resistant strains in the protease (PR) region was 2%, and the incidence of reverse tran-scriptase (RT) region was also 2%. Both of the prevalence were classified as low level ( <5% ). Conclu-sion PR, RT-resistant HIV-1 strains were found in drug-naive infectors, and the prevalence was low in Beijing. Current antiretrovirai therapy regiments were still feasible. Most of the AIDS patients did not need to test drug resistance before antiretroviral therapy.

Objective To analyze the frequencies of HLA-DQA1 alleles and their clinical values in the donor-recipient HLA-A,-B,-C,-DRB1,-DQB1 (10/10) matched hematopoietic stem cell transplantation (HSCT).Methods This study recruited 127 patients who received allogeneic HSCT and 127 unrelated donors.High-resolution (High Res) DNA typing for HLA-DQA1 alleles were performed on the 254 subjects by using sequence specific oligonucleotide probes (SSOP) and high resolution of sequence specific primer(High Res SSP).Results The DQA1 allele genotypes of 36 pairs of donor-recipient were directly identified by using SSOP.The ambiguous DQA1 allele genotypes of the rest 91 pairs were identified by using High Res SSP.Among the 127 pairs of donor-recipient,5 pairs were HLA-DQA1 alleles mismatched,while the others were all matched.No significant differences in the distribution of HLA-DQA1 alleles were observed between the donors and the recipients.Sixteen HLA-DQA1 alleles were detected in the 127 donors,which were DQA1 * 02 ∶ 01 (19.3％),DQA1* 01 ∶ 02(19.3％),DQA1 * 03 ∶ 02/03 (17.0％),DQA1 *01∶03 (9.8％),DQA1*06∶01(9.1％),DQA1*05∶ 01(7.1％),DQA1*05∶05(5.9％),DQA1*03∶01 (4.7％),DQA1*01 ∶04(2.4％),DQA1*01∶05(2.0％),DQA1*01∶01(1.2％),DQA1*05 ∶ 03(0.8％),DQA1 *05 ∶ 08(0.8％),DQA1*04 ∶ 01(0.4％),DQA1*05 ∶ 06(0.4％) from high to low frequency.Moreover,a new allele was detected in the patients.The haplotypes' frequencies and linkage disequilibrium(LD) analysis of HLA-DQA1 and HLA-DQB1 showed that the most common haplotype was DQA1 *02 ∶ 01-DQB1 *02 ∶ 02(16.1％),followed by DQA1 *03 ∶ 02/03-DQB1 *03 ∶ 03 (11.8％)and DQA1 *01 ∶ 03-DQB1 * 06 ∶ 01 (9.1％).Stronger LD were observed between DQA1 * 02 ∶ 01 and DQB1*02 ∶ 02,DQA1 *03 ∶ 02 and DQB1*03 ∶ 03,DQA1 *01 ∶ 03 and DQB1*06 ∶ 01,HLA-DQA1*06∶01 andDQB1*03 ∶ 01,DQA1*05 ∶ 01 and DQB1*02 ∶ 02(P＜0.001).Conclusion There was strong linkage disequilibrium between HLA-DQA1 and HLA-DQB1 genes.The polymorphism of HLA-DQA1 gene was less than that of HLA-DQB1 gene.No more guidance was provided to donor selection in unrelated donor-recipient HLA matched HSCT by adding HLA-DQA1 genotyping,but it might have clinical application values in HSCT with HLA Ⅱ locus mismatched donor and recipient.

AIM:To establish a simple and accurate HPLC method for quality evaluation and determination of 8 active constituents, i.e. Danshensu, Protocatechualdehyde,rosmarinic acid,Salvianolic acid B, Dihydrotanshinone, Cryptotanshinone, Tanshinone Ⅰand Tanshinone ⅡA in Radix Salviae Miltiorrhizae, at the same time, in order to study the correlations of the contents of the 8 constituents. METHODS: Detected at 286 nm, analytes were separated on a ODS C_ 18 column(150 mm?4.6 mm, 10 ?m) eluted gradually with methanol and 1% tetrafuran in 1% formic acid water solution(3∶97)on the increasement of methanol from 3% to 70% in the whole analysis. After determination, SPSS 13.0 software was used to calculate the correlation between the 8 constituents. RESULTS: Under the above conditions, HPLC method was constructed to quantify 8 constituents,and their correlation coefficients were calculated. CONCLUSION: The result shows that the contents of the 8 constituents in Salvia miltiorrhiza Bge. vary greatly from different origins; and there are significant correlations between the contents of hydrophilic constituents such as Salvianolic acid B,Danshensu,rosmarinic acid, so do hydrophobic constituents like Cryptotanshinone,Tanshinone Ⅰ,Tanshinone ⅡA,but there is no correlation between the hydrophilic constituents and hydrophobic constituents.