Objective To explore the incidence and risk factors of anti-tuberculosis (TB) drugs induced liver injury (ATDILI) and to discuss its impact on the treatment outcome of patients treated with first line anti-TB drugs.Methods Among the patients who received anti-TB treatment with directly-observed treatment strategy (DOTS),121 patients with ATDILI and 817 patients without ATDILI were included in this retrospective cohort study.Binary Logistic regression model was used to analyze the risk factors of ATDILI in univariate and multivariate analysis.The x2 test was used to compare the treatment success rates and drug resistant rates.Kaplan-Meier analysis and Log-rank test were used to compare the sputum smear/culture conversion rates and cavity closure rates.Results The incidence of ATDILI was 12.9％ (121/938) in this cohort.Multivariate Logistic regression showed that hepatitis B virus carrier with both hepatitis B surface antigen (HBsAg) and hepatitis B e antigen (HBeAg) positive (OR=4.29,95％CI:2.15-8.58,P＜0.01),complicated with systemic lupus erythematosus (OR=3.34,95％CI:1.46-7.63,P=0.004),serum albumin ≤25 g/L (OR=3.14,95％CI:1.50-6.58,P=0.002) and alcoholism (OR=1.79,95％CI:1.14-2.82,P=0.012) were independent risk factors of ATDILI.The treatment failure rate in patients with ATDILI was significantly higher than that in patients without ATDILI (19.1％[24/121] vs8.0％[65/817],OR=2.86,95％CI:1.71-4.78,P＜0.01).The drug resistant rates of two groups were not significant different (4.1％[5/121] vs 1.7％[14/817],P＞0.05).The sputum smear/culture conversion rate (85.4％[41/48] vs 94.0％ [298/317],x2 =38.912,P＜0.01) and cavity closure rate (84.6％[22/26] vs 93.0％[198/213],x2 =20.709,P＜0.01) in patients with ATDILI were both significantly lower than those in patients without ATDILI.Conclusions The incidence of ATDILI is relatively high in hospitalized patients treated with first line anti-TB drugs.ATDILI has negative effects on treatment outcome of TB patient.Hepatitis B carrier with positive HBsAg and HBeAg,systemic lupus erythematosus,albumin ≤25 g/L and alcoholism may increase the risk of developing ATDILI.

Objective To evaluate the role of spinal sigma-1 receptors in the maintenance of bone cancer pain (BCP) in rats and the relationship with extracellular signal-regulated kinase (ERK).Methods Part Ⅰ Twenty-four female Sprague-Dawley rats,weighing 180-220 g,were randomized into 2 groups using a random number table:sham operation group (S group,n =4) and BCP group (n =20).BCP was induced by inoculating Walker 256 mammary gland carcinoma cells into the medullary cavity of the right tibia.Four rats were sacrificed on day 10 after inoculation in S group or on day 3,5,7,10 and 14 after inoculation in BCP group,and the L4-6 segments of the spinal cord were removed to measure the expression of sigma-1 receptors by Western blot.Part Ⅱ Forty female Sprague-Dawley rats,weighing 180-220 g,were randomized into 4 groups (n =10 each) using a random number table:sham operation group (S group),sigma-1 receptor inhibitor BD1047 group (BD group),BCP group,and BCP + BD1047 group (BCP + BD group).On day 10 to 14 after inoculation,normal saline 20 μl was injected intrathecally once a day in S and BCP groups,or BD1047 120 nmol/20μl was injected intrathecally once a day in BD and BCP + BD groups.Mechanical paw withdrawal threshold (MWT) to yon Frey filament stimulation was measured one day before inoculation,on day 3,5 and 7 after inoculation,and on day 10,12 and 14 after administration.After measurement of MWT on day 14 after inoculation,the rats were sacrificed and the L4-6 segments of the spinal cord were removed to determine the expression of phosphorylated ERK (p-ERK) by Western blot.Results Part Ⅰ Compared with group S,the expression of sigma-1 was significantly up-regulated and peaked on day 10 after operation in group BCP.Part Ⅱ Compared with S group,no significant changes were found in MWT and p-ERK expression at each time point in BD group,and MWT was decreased and p-ERK expression was up-regulated in BCP and BCP + BD groups.Compared with group BCP,after intrathecal injection of BD1047,MWT was significantly increased and the expression of p-ERK was down-regulated in BCP + BD group.Conclusion Spinal sigma-1 receptors are involved in the maintenance of BCP in rats possibly through promoting phosphorylation of ERK.

Objective:To construct a lentiviral vector overexpression of micrRNA-29b and investigate the biological characteristics in mouse neuronal cell lines GT1-7.Methods:We chemically synthesized two oligonucleotide single-stranded,complete the comple-mentary by bridging extension into DNA double-stranded to form miR-29b precursor structure.The restriction enzyme digested vector plasmid FUGW was ligated to the precursor structure ofmiR-29b by homologous recombination to construct the corresponding lentiviral vector of microRNA-29b overexpression,and the stable cells were obtained in the mouse neuronal cell line GT1-7 by bleomycin drag screening.RT-PCR was used to detect the expression level of related genes at mRNA transcription level,Results:The recombinant lentiviral expression plasmid f-F-miR-29b was successfully constructed,and the expression level was about 30 times higher than that of the control group.The expressions of DCX,Vdac1 and pten were inhibited,have no changes in sex developmental related genes LH-β,kiss-l,Inshulin,IGF-I,GPR54,GnRH and leptin-R.Conclusion:Using the method of lentivirus screening,the microRNA-29b overexpressing stably transformed cells was successfully obtained in mouse neuron GT1-7 cells,which laid a foundation for the study of biological characteristics ofmicroRNA-29b.

Protein tyrosine phosphatase (PTP) 1B is a potential target for the treatment of diabetes and obesity. We have previously identified the benzoyl sulfathiazole derivative II as a non-competitive PTP1B inhibitor with in vivo insulin sensitizing effects. Preliminary SAR study on this compound series has been carried out herein, and thirteen new compounds have been designed and synthesized. Among them, compound 10 exhibited potent inhibition against human recombinant PTP1B with the IC50 value of 3.97 micromol x L(-1), and is comparable to that of compound II.

Objective To systematically review the effect of traditional Chinese medicine (TCM) in an animal model of lung injury induced by paraquat (PQ),and to provide a theoretical basis for future clinical trials.Methods The Wanfang,CNKI,VIP,PubMed/MEDLINE,EMBASE database (from January 1979 to September 2012) were searched.All papers concerning TCM in animal model of lung injury induced by PQ were retrieved.Study selection and data extraction were performed on the basis of Cochrane systematic review methods.Weighted mean difference (WMD) and 95％ confidence interval (95％CI) with random effects model was adopted to investigate the effect of TCM on lung injury induced by PQ.Results Eighteen papers involving 1 188 rats met our criteria.Meta-analysis showed that TCM could improve the lung coefficiency (WMD-0.07,95％ CI-0.14 to-0.01,P=0.03),reduce lung wet/dry weight ratio (WMD-1.15,95％CI-2.03 to-0.27,P=0.01),increase the serum superoxide dismutase (SOD) activity (WMD 56.08,95％CI 23.46 to 88.70,P=0.000 8),improve plasma glutathione peroxidase (GSH-Px) level (WMD 26.64,95％CI 18.95 to 34.33,P＜0.000 01),and lower serum malondialdehyde(MDA) level (WMD-0.65,95％CI-1.00 to-0.30,P=0.000 2),however there was no significant difference in the level of serum tumor necrosis factor-α (TNF-α) and hydroxyproline (HYP) level between TCM and controls (TNF-α:WMD-25.15,95％CI-54.87 to 4.57,P=0.10; HYP:WMD-0.11,95％CI-2.71 to 0.48,P=0.17).Conclusions These findings demonstrate the efficacy of TCM in animal models of lung injury induced by PQ.However taking account of heterogeneity,the efficacy should be interpreted with caution.

Objective: To follow the principle of adapting to the constantly updated laws and regulations of the state, put forward the supervision strategy of occupational health inspection institutions under the new situation, and standardize the practice of inspection institutions. Methods: The work of supervision and inspection was carried out in the provincial occupational health inspection institutions for five consecutive years. Result: Occupational health inspection institutions generally have non-standard work of occupational health inspection, deviations in understanding the relevant laws, regulations, policies and standards of occupational diseases, incomplete coverage of the assessment forms used in previous supervision and inspection, and insufficient refinement of the scores, only considering the basic conditions for occupational health inspection, but not from the level of quality management and discipline construction. As a result, some occupational health inspection institutions have backward instruments and equipment, poor ability and low level of practitioners, and inaccurate results of occupational health inspection, which bring hidden dangers to the health of employers and workers. Conclusion According to the results of supervision and inspection of occupational health inspection institutions in the province, the common problems are summarized and analyzed, and the supervision strategies of occupational health inspection institutions under the new situation are put forward in accordance with the principle of adapting to the constantly updated laws and regulations of the state.

Objective To study the impact of different insulin levels on the conversion from impaired glucose tolerance (IGT) to type 2 diabetes mellitus (T2DM),through analysis of different glycometabolism condition among quinquagenarian population.Methods Subjects enrolled were Beijing habitants who received annual physical examination [ including oral glucose tolerance test (OGTI) ] in the Chinese PLA General Hospital from 2005-2007.According to the OGTT results,the subjects were divided into three groups,including normal glucose tolerance-non-hyperinsulinemia group (NGT-NHIns),IGT-hyperinsulinemia group (IGT-Hins) and IGT-non-hyperinsulinemia group (IGT-NHINS).The prognosis between the year 2009 and 2010 of the three groups was observed.Hyperinsulinemia was diagnosed with fasting serum insulin ≥ 15 mU/L and/or 2-hour serum insulin ≥ 80 mU/L after glucose loading.Results The rate of case number of conversion to T2DM in IGT-NHIns group (42/133) was higher than that in IGT-Hins group (24/154) or NGT-NHIns group (12/126).The HOMA insulin resistance index (HOMAIR) of individuals with IGT-NHIns was lower than that of IGT-Hins [ 0.96 (0.40,3.53 ) vs 2.04 (0.59,23.20),P ＜ 0.05 ],while whole body insulin sensitivity index (WBISI) was higher than that of IGT-Hins [ 7.48 (3.20,31.35 ) vs 3.28 ( 0.86,7.67 ),P ＜ 0.05 ].Modified β-cell function index ( MBCI ) and insulin secretion index (ISI) in IGT-NHIns was poorer than that of IGT-Hins respectively [ 2.57 (0.58,10.98) vs5.17(1.04,65.09); 7.66 (0.99,28.40) vs 17.56 (4.18,96.46),allPvalues ＜0.01].Conclusions The risk of IGT-NHIns progressing into T2DM is higher than that of IGT-Hins. For the prevention of T2DM,individuals with IGT-NHIns should be paid more attention than keeping an eye on IGT-Hins patients.Early control of risk factors could protect β cell function and prevent the progression to T2DM.

BACKGROUND:Microleakage between restoration, tooth structure and bonding agent can cause the entry of bacteria and liquid in the mouth into the gap, thereby damaging the bonding interface between the restoration and tooth tissues, and leading to bond failure. Microleakage detection can directly show whether the closure of the root canal of post and core system is good or bad. The severity of microleakage directly affects the restorative effects of post and core. OBJECTIVE: To evaluate the effects of different root canal cleaning methods on the microleakage between the fiber post and root canal dentin. METHODS: Thirty fresh non-caries premolar posts with free root canalin vitro were randomly divided into five groups, and the root canal wal was respectively washed with saline, 5.25% sodium hypochlorite solution+17% ethylenediamine tetra-acetic acid (EDTA)+saline, 3% hydrogen peroxide solution+5.25% sodium hypochlorite+ saline, 3% hydrogen peroxide solution+2% chlorhexidine solution+saline, and 2% chlorhexidine solution+17% EDTA+saline in different groups. Super-bond C&B adhesive agent was used for bonding fiber post, and the microleakage of each sample was observed under stereomicroscope. RESULTS AND CONCLUSION: The severity of microleakage in the al groups was ranged as folows: saline group > 3% hydrogen peroxide solution+5.25% sodium hypochlorite+saline group > 5.25% sodium hypochlorite solution+17% EDTA+saline and 3% hydrogen peroxide solution+2% chlorhexidine solution+saline groups > 2% chlorhexidine solution+17% EDTA+saline group.

Objective To explore the composition principles of prescriptions for simple obesity based on the analysis of medical literature issued in recently 30 years about Chinese medicine for simple obesity. Methods We collected literature of Chinese medicine in treating simple obesity from VIP, CNKI, Wanfang, CBM and CMCC/CMCI databases, and screened out the formulas for simple obesity to establish a formula database. And then the medication rules were figured out with the Traditional Chinese medicine Inheritance Support System version 2.5 (TCMISS 2.5) software. Results A total of 57 formulas were screened out. And the top 10 herbs with highest occurrence frequency in the prescriptions were Poria, Rhizoma Atractylodis Macrocephalae, Rhizoma Alismatis, Radix et Rhizoma Rhei, Fructus Crataegi, Radix Astragali, Radix Glycyrrhizae, Folium Nelumbinis, Pericarpium Citri Reticulatae and Semen Cassiae. After data mining, we got 13 high-frequency herb-pair combinations and 31 core combinations, and 8 new prescriptions were extracted. Conclusion The research has achieved the quantitative description of the relationship between the Chinese medicines, the extraction of the core combinations and the discovery of new Chinese medicine prescriptions for simple obesity. The results will provide references for the development of new Chinese medicines for the treatment of simple obesity .

Natural long-chain alkanol and alkyl carboxylic acid were used to prepare novel hydrophobic deep eutectic solvents(HDESs).These HDESs are liquid at room temperature and have low viscosity(＜12.26 mPa-s),low polarity(lower than that of methanol,ChCl-based deep eutectic solvents and other reported HDESs),and low density(＜0.928 g/mL).A simple one-pot method based on a novel HDES-water two-phase extraction system was constructed for the extraction of weak-polarity bioactive components,anthraquinones,from Rhei Radix et Rhizoma.This HDES-based new extraction method does not consume hazardous organic solvents and can obtain a total anthraquinone yield of 21.52 mg/g,which is close to that obtained by the Chinese pharmacopoeia method(21.22 mg/g)and considerably higher than those by other reported HDESs-based extraction methods(14.20-20.09 mg/g,p＜0.01).The high extraction yield can be mainly attributed to the severe destruction of the RRR cell walls by the extraction system and the excellent dissolving ability of novel HDESs for anthraquinones.