Objective To investigate the performances in line bisection(LB)and line cancellation(LC)tasks of patients with unilateral neglect.Methods The unilateral neglect patients,performances in LB and LC tasks before and after rehabilitation treatment were retrospectively analyzed.Results Before treatment,statistical analyses revealed the patients,performances in LC and LB tasks did not differ from each other(P =0.902).After treatment,statistical analyses revealed a significant difference between the two tasks(P =0.007).With LB only,29/30(97%)patients with neglect were detected;with LC only,22/30(73%)patients with neglect were detected.Conclusions As the performances of unilateral neglect patients improved,patients revealed difference between the performances in LB and in LC tasks.One test alone would miss some subjects with neglect.Combinative use of the two tests was more sensitive than either of the 2 tests alone.

Objective To investigate the diagnostic value of the enhancement patterns for characterizing various focal hepatic lesions (FHL). Methods Forty-seven patients (50 lesions) were included into the study. The morphologic features and the dynamic enhancement patterns of FHL were observed in the early arterial phase, late arterial phase and portal venous phase.The degree of FHL enhancement was analyzed by calculating the contrast-to-noise ratio. Results 70% of the HCCs presented “fast-filling and rapid-washout” feature; 67% of the cholangiocarcinomas showed slight enhancement in arterial phase, and 33.3% had delayed enhancement on portal venous phase; All hemangiomas presented peripheral nodular enhancement in arterial phase, which then demonstrating centropedal “push-on” enhancement in portal venous phase; Hepatic abscesses mainly presented a slightly enhanced rim around the lesion with fibrous septa inside and an edematous zone outside. Conclusion The enhancement pattern and the dynamic evolution of FHL enhancement had a great diagnostic value for different FHL by using MRI 3D-VIBE sequence.

Research on novel pullulanase has major significance on the domestic industrialization of pullulanase and the breakdown of foreign monopoly. A thermophilic bacteria LM 18-11 producing thermostable pullulanase was isolated from Lunma hot springs of Yunnan province. It was identified as Anoxybacillus sp. by 16S rDNA phylogenetic analysis. Full-length pullulanase gene was cloned from Anoxybacillus sp. LM18-11. The optimum temperature of the pullulanase was between 55 and 60 degrees C with a half-life as long as 48 h at 60 degrees C; and its optimum pH was between 5.6 and 6.4. V(max) and K(m) of the pullulanase was measured as 750 U/mg and 1.47 mg/mL, which is the highest specific activity reported so far. The pullulanase crystals structure showed a typical alpha-amylase family structure. The N-terminal has a special substrate binding domain. Activity and substrate binding were decreased when the domain was deleted, the V(max) and K(m) were 324 U/mg and 1.95 mg/mL, respectively. The pullulanase was highly heterologous expressed in Bacillus subtilis by P43 promoter. The extracellular enzyme activity was 42 U/mL, which increased more than 40 times compared to the initial strain. This pullulanase has good application prospects.
Anoxybacillus ; classification ; enzymology ; China ; Glycoside Hydrolases ; metabolism ; Hydrogen-Ion Concentration ; Phylogeny ; RNA, Ribosomal, 16S ; genetics ; Temperature

Objective To investigate the sensitivity of BIOMED-2 primer system in adult acute lymphoblastic leukemia (AIJ,) patients Ig gene rearrangement, and to analyze their frequency, corearrangement pattern, utilization of V, D and J genes and composition of junctional regions. Methods Amplification of rearranged IgH (complete and incomplete), IgK, IgK-Kde and IgL was performed in standard PCR in 29 adult ALL patients. Monoclonal PCR products were subjected directly to DNA sequencing. Sequences were identified by comparison with all known human Ig germline sequences to analyze the recombination patterns, somatic mutations and germline gene segments usage. Results IgH, incomplete IgH, IgK, igK-Kde and Igl, rearrangements were found with positive rate of 70.8%, 12.5% , 29.2% , 25.0% and 0 of B-ALL patients, respectively. All B-ALL patients displayed at least one pattern of Ig gene rearrangements. In TALL, one of five patients was found with incomplete IgH rearrangement, two patients were found with IgK rearrangements and two patients were PCR-negative. The sequence analysis showed that the most frequently used V, D, J segments in adult B-ALL patients were from VH3/VH4 families, DH3 family and JH6 family, respectively. Four of five IgK rearrangement used VκI family. 23.5% B-ALL IgH contained scattered replacement mutations with replacement to silent substitution ratio < 1 in complementarity determining regions. Conclusion BIOMED-2 multiplex PCR analysis strategy is a reliable and useful technique in the adult BALL patients.

Objective: To investigate the apoptosis of renal cells induced by tumor necrosis factor alpha (TNF-α) and nuclear factor-κB (NF-κB) in diabetic rats and intervention of rapamycin. Methods: A total of 20 rats (Goto-Kakizaki rats) with type 2 diabetes mellitus (T2DM) were randomly and equally divided into DM model group (DM group) and rapamycin treatment group (DMR group, received rapamycin treatment after DM model was established); another 10 Wistar male rats were regard as normal control group. Apoptosis of renal cells, expression levels of TNF-α and NF-κB and levels of blood lipids, blood glucose were measured in all groups after four weeks and eight weeks. Results: Four and eight weeks After model was established, compared with normal control group and DMR group, there were significant increase in renal cells apoptosis [RCA, four weeks: (0.217±0.031), (0.272±0.031) vs. (0.545±0.031), eight weeks: (0.358±0.031), (0.350±0.031) vs. (0.811±0.031)] and expressions of NF-κBp65 [OD: four weeks: (0.160±0.027), (0.131±0.027) vs. (0.411±0.027), eight weeks: (0.232±0.027), (0.275±0.027) vs. ( 0.634±0.027)] and TNF-α [OD: four weeks: (0.242±0.027), (0.275±0.027) vs. (0.617±0.027), eight weeks: (0.385±0.027), (0.342±0.027) vs. (0.912±0.027)] in DM group (P<0.01 all). Correlation analysis indicated that there were positive correlations between renal NF-κBp65 and TNF-α, among RCA and TNF-α, NF-κBp65 (r=0.956, 0.953, 0.886，P<0.01 all).

Objective To evaluate the clinical value of magnetic resonance cholangiopancreatography (MRCP) in diagnosis of extrahepatic bile duct obstruction. Methods MRCP images of 42 patients presented clinically with obstructive jaundice were retrospectively reviewed to assess the lumen morphological abnormalities of benign versus malignant bile duct obstructions, with clinical pathological correlation. Results The bile duct of the 30 cases of benign biliary obstruction presented regular and symmetric dilation, gradual tapering,regular thickening and had a “beak like” tip. The accuracy of MRCP for evaluating the site and the etiology of the benign biliary obstruction were 100%(30/30) and 97%(29/30) respectively. The bile duct of the 12 cases of malignant biliary obstruction presented irregular and asymmetric dilation,abrupt narrowing or iterruption,irregular thickening and had “dual duct sign”. The accuracy of MRCP for evaluating the site and the etiology of the malignant biliary obstruction were 100%(12/12) and 92%(11/12) respectively. Conclusion MRCP is the noninvasive technique of choice with excellent accuracy for the evaluation of obstructive biliary pathology.

Aim To investigate the periphery analge-sic effect of myricetin on a rat model of inflammatory pain and the mechanism. Methods Rat models of in-flammatory pain were induced by complete Freund ’ s adjuvant ( CFA) injection in left hindlimb plantar cen-ter. The thermal withdrawal latency ( TWL) was meas-ured before and after CFA or myricetin treatment. Elec-trophysiological method was used to identify the effect of myricetin on the action potential frequency and the voltage dependent potassium channel currents in small DRG neurons. Results Rats with CFA injected showed thermal hyperalgesia ( P <0. 05 ) and TWL in-creased significantly after myricetin intraperitoneally in-jected ( P <0. 05 ) . Current clamp recording showed the action potential frequency of small DRG neurons in rats was inhibited by myricetin ( P<0. 01 ) and voltage calmap recording showed the inhibitory effect of myr-icetin was enhanced by calcium depended potassium channel currents ( P<0. 05 ) . Conclusion Myricetin exerts periphery analgesic effect by enhancing calcium depended potassium channel currents and inhibiting excitability of small neurons of dorsal root ganglion.

Objective To investigate the efficiency of transjugular intrahepatic portosystemic shunt (TIPS) with Fluency stent in improving the hepatic and renal function and survival rate in patients with decompensated cirrhosis.Methods The decompensated cirrhosis patients who were treated in our hospital from May 2008 to September 2011 were retrospectively analyzed.One group of patients (n =48) undergoing TIPS was randomly selected as treatment group,while another group of patients (n =48) treated by medicine and therapeutic endoscope was randomly chosen as control group.Clinical data and fellow-up data were retrospectively reviewed.There was no significant deviation in baseline characteristics (age,gender composition,etiology,renal function,hepatic function et al) among all the patients before the operations; The laboratory results of hepatic and renal function in 2 groups before and after operation (1 week,20 days,3 months,6 months,1 year,2 years,3 years) were recorded and compared with independent samples t-test or Wilcoxon rank sum test.The survival rates of two groups in 3 years were analyzed using Kaplan-Meier survival curve and compared with Chi-square test.Results Three years after the operation,there were significant differences between the treatment group and the control group in AST(70.8 vs.108.7 U/L,Z =-2.958,P ＜ 0.05) and TBIL (51.2 vs.76.2 μmol/L,Z =-2.004,P ＜ 0.05).The Cr value of the 3rd year after the treatment were (9928.2 ± 2363.8) in the the control group and (7742.1 ± 2845.6) μmol/L in the treatment group(t =-2.074,P ＜ 0.05).BUN of the 1st,2nd and 3rd years after the treatment were (2.0 ± 1.1),(2.3 ± 1.5),(2.5 ± 1.3) mmol/L in the treatment group,while it was (2.6 ± 1.1),(3.8 ±1.2),(5.4 ± 1.1)mmol/L in the control group.There was significant difference between the 2 groups (t =-2.222,-3.940 and-6.110,P ＜ 0.05).Comparing the survival rate in the 2 groups with Kaplan-Meier survival curve,the 3 year survival rate in the treatment group was 46.2％,while in the control group it was only 30.0％ (x2 =6.341,P ＜ 0.05).Conclusions Compared with medicine therapy and therapeutic endoscopy,TIPS with Fluency stent may improve the hepatic function,renal function and survival rate in liver cirrhosis patients.It is a safe and effective therapy choice for patients with decompensated cirrhosis.

Objective To approach the protective effect of dexmedetomidine on mechanically ventilated patients with pulmonary contusion. Methods A prospective randomly controlled trial was conducted. 70 mechanically ventilated patients with pulmonary contusion from January 2010 to December 2012 in the Critical Care Medicine of Foshan Hospital of Traditional Chinese Medicine were divided into a control group and a therapy group by the difference in number odd or even,with 35 patients in each group. Based on the same principles of comprehensive treatment,the control group used midazolam,and the therapy group used dexmedetomidine for sedation. The measured parameters included oxygenation index(PaO2/FiO2),tumor necrosis factor-α(TNF-α),interleukin-6(IL-6), and extra-vacular lung water index(EVLWI)for both groups on the1st and 5th day. The incidence of delirium,the time of mechanical ventilation,and the incidence of hypotension were observed in both groups. Results Compared with those on the 1st day,TNF-α,IL-6 and EVLWI on the 5th day were decreased significantly in both groups〔the control group TNF-α(ng/L):1.29±0.38 vs. 2.21±0.37,IL-6(ng/L):97.97±28.77 vs. 131.03±41.52,EVLWI (mL/kg):8.25±2.03 vs. 11.96±3.36;the therapy group TNF-α:1.06±0.33 vs. 2.32±0.37,IL-6:82.07±23.35 vs. 134.98±64.25, EVLWI(mL/kg):6.74±1.33 vs. 11.23±2.78, all P<0.05〕, PaO2/FiO2 was increased obviously〔mmHg(1 mmHg=0.133 kPa),the control group:285.80±30.65 vs. 213.00±33.70,the therapy group:315.00±34.50 vs. 229.50±37.00,both P<0.05〕,TNF-αand IL-6 had no significant difference compared between the therapy group and control group(TNF-α:1.06±0.33 vs. 1.29±0.38,IL-6:82.07±23.35 vs. 97.97±28.77), while EVLWI and PaO2/FiO2 in the therapy group had remarkable differences compared with those of the control group〔EVLWI(mL/kg):6.74±1.33 vs. 8.25±2.03,PaO2/FiO2(mmHg):315.00±34.50 vs. 285.80±30.65,both P<0.05〕. The incidence of delirium(8.57% vs. 22.86%)and time of mechanical ventilation(day:4.10±1.09 vs. 6.88±1.66)in the therapy group were decreased markedly compared with those of the control group,and the incidence of hypotension had no significant difference between treatment or control groups(17.14% vs. 14.29%,P>0.05). Conclusion Dexmedetomidine has protective effect on mechanically ventilated patients with pulmonary contusion, and it is an relatively ideal sedative drug for these patients.

Objective:To establish a method for the determination of phenyl salicylate in compound titanium dioxide cream. Meth-ods:The HPLC assay was carried out on an Agilent Zorbax SB C18 (250 mm × 4. 6 mm, 5 μm) column with methanol -water (78∶22) as the mobile phase. The sample was detected at 308 nm with a UV detector. The column temperature was set at 25 ℃ and the flow rate was 1. 0 ml·min-1 . Results:Phenyl salicylate could isolate from the other materials by HPLC. The linear range of phenyl salicylate was 59.460-198.200 μg·ml-1(r=0.999 5). The recovery was 101.84% with RSD of 0.64%(n=9). The content of phenyl salicylate in 3 batches of compound titanium dioxide cream was 107. 7%, 107. 5% and 109. 8%, respectively. Conclusion:The method is simple, rapid, exclusive, accurate and sensitive, which is suitable for the determination of phenyl salicylate in com-pound titanium dioxide cream.