Objective To investigate the preventive and therapeutic effects of lamivudine and entecavir on hepatitis B virus (HBV)reacti-vation among non-Hodgkin lymphoma (NHL)patients with chronic HBV infection during chemotherapy.Methods From January 2008 to April 2013,a total of 94 NHL patients with HBV infection were recruited from our hospital and divided into lamivudine treatment group and entecavir treatment group.The lamivudine treatment group received chemotherapy with lamivudine (100 mg/d),and the entecavir treatment group received chemotherapy with entecavir (0.5 mg/d).The rates of virological breakthrough,primary non -response,and virological breakthrough-related hepatitis flare were compared between groups.The t-test was used for comparison between two groups of independent samples;one-way analysis of variance was conducted for comparison between three groups of independent samples;the chi -square test was used to conduct intergroup comparison.Results For the patients with HBV DNA levels lower than 103 copies/ml before anti -HBV treatment,no significant difference was found in the rate of virological breakthrough or rate of hepatitis flare between lamivudine treatment group and entecavir treatment group (χ2 =1.03,P>0.05).For the patients with HBV DNA levels higher than 103 copies/ml before anti-HBV treatment,the lamivudine treatment group had a virological breakthrough rate of 37.5%,a primary non-response rate of 9.4%,a hepatitis flare rate of 28.1%,and a liver failure rate of 3.1%,and the aforementioned rates for entecavir treatment group were 3.1%,0, 0,and 0,respectively;there were significant differences in the rates of virological breakthrough and hepatitis flare between the two groups (χ2 =11.68,P<0.05;χ2 =10.47,P<0.05).Conclusion Among NHL patients with HBV infection whose HBV DNA levels are lower than 103 copies/ml,the preventive and therapeutic effects of lamivudine and entecavir on HBV reactivation are similar;among NHL patients with HBV infection whose HBV DNA levels are higher than 103 copies/ml,those treated with entecavir have lower rates of virological break-through and hepatitis flare than those treated with lamivudine,which helps patients have a smoother progress of chemotherapy.

Arterial systolic pressure variab il ity (ASPV), heart beat interval variability (HRV) and baro-reflex sensitivity ( BRS) were measured by finger arteriole blood pressue monitor system and cardiova scular spectral analysis system. The diabetic patients with cardiovascular auton omic neuropathy show significant changes in ASPV and HRV and decreased BRS. BRS changes earlier than other parameters.

Objective To study the inhibitory effects of stachyose on the hyperacute rejection in pig-to-human heart xenotransplantation.Methods A pig-to-human xenogeneic heart transplantation model was established based on an in vitro free heart blood perfusion system.The pig hearts were di- vided into two groups:group A(pig hearts treated with human blood perfusion as control)and group B(pig hearts treated with human blood plus stachyose perfusion).After perfusion for 1h,the heart xenografts were examined for deposit of lgG and IgM by immunohistochemistry and pathological analy sis.Results The mean survival time of perfusion hearts in groups A and B was(9.5?2.5)min and (46.8?8.1)min respectively(P

The genetic diversity of three Tibetan herbs, i. e., Sang-Di, E-Dewa and Ye-Xingba (Tibetan names), was studied based on the field collection, specimen identification and DNA sequence analysis. Swertia hispidicalyx, Gentiana lhassica and Scrophularia dentata, as the original plants of the three Tibetan herbs, were collected and identified. The regions of ITS, matK, rbcL, rpoC1, trnL(UAA), psbA-trnH, atpB-rbcL, trnS (GCU)-trnG(UCC), rpl20-rps12, trnL(UAA)-trnF(GAA) and nadl 2nd intron were amplified and sequenced. The ITS regions of S. hispidicalyx and S. dentata were cloned and sequenced, and the sequences were classified into different genotypes. All the sequences were analyzed and compared with those of closely related species. Our studies may provide reference for the genetic diversity analysis and molecular identification of the three Tibetan herbs.
Genetic Variation ; Gentiana ; classification ; genetics ; Phylogeny ; Plant Proteins ; genetics ; Plants, Medicinal ; classification ; genetics ; Scrophularia ; classification ; genetics ; Swertia ; classification ; genetics ; Tibet

Objective To establish rat models with Alzheimer's disease(AD) induced by ?-amyloid,and to observe the effects of nicotine on learning and memorizing ability of the rats. Methods Aggregated A?1-40 was injected into the bilateral basal forebrain of the rats.Learning and memorizing ability of the rats were inspected through Morris water maze test.The effects of nicotine on learning and memorizing ability of the rats induced by ?-amyloid peptide were observed. Results The learning and memorizing ability of AD animal models injected aggregated(A?1-40) for 2 weeks decreased(P

Bronchoplasty was extended to the segmental level and the effect of the multi-segmental surgery for the central non-small lung cancer was observed. The involved lobular bronchi and part of main bronchi were resected and single-layer continuous suture with 5-0 Prolene was used for suturing of the carina of the reconstructed segmental bronchi to form lobular bronchi. Then, single-layer continuous suture with 4-0 Prolene was employed to anastomose the "lobular bronchi" with main bronchi. Our results showed that the 15 bronchoplasties were successfully performed. The tumors were completely removed and postoperatively, the pulmonary functions of the patients were substantially improved. No broncho-pleural fistula and stomal stenosis took place in all the cases. The quality of life of the patients were obviously improved. It is concluded that multisegmental bronchoplasty can completely remove the tumor of central non-small-cell lung cancer and conserve more non-involved lung. The procedure is especially suitable for those patients with severely impaired lung functions and it expands the indications of surgical resection of lung cancer.
Anastomosis, Surgical ; Bronchi/*surgery ; Carcinoma, Non-Small-Cell Lung/*surgery ; Lung Neoplasms/*surgery ; Pneumonectomy/*methods ; Pulmonary Surgical Procedures/*methods ; Recovery of Function ; Treatment Outcome

Objective To investigate the influence of gene therapy using survivin as a gene target on biological behavior of pancreatic carcinoma cell line. Methods Chemically synthesized siRNA and shRNA in pGCSi vector were used to silence survivin expression of pancreatic carcinoma cell line PaTu8988. The therapeutical effects of survivin as a gene target were evaluated through determination of the down-regulation of survivin gene expression, cellular shape, cell apoptosis, cell viability and apoptosis signal pathway changes. Results After transfection of different arrays of siRNA and shRNA vectors to silence the survivin expression, survivin mRNA and protein levels were significantly decreased (P < 0.05) ; PI staining revealed the presence of karyopyknosis, the cell apoptosis index was more than 20%; hypodiploid DNA content before G0/G1 detected by flow cytometry ; cell viability measured by MTT assay was significantly decreased (P <0.05) ; the activity of caspase-3 remarkably increased (P < 0. 05). Conclusions The pancreatic carcinoma cell line PaTu8988 be induced to promote spontaneous apoptosis procedure through silencing survivin expression by RNAi, which could accelerate carcinoma cell apoptosis and improve therapeutic effect on pancreatic carcinoma.

Objective To study the feasibility of renal hypothermia achieved by retrograde icecold saline infusion with perfusion pump. Methods Twenty-one patients who received the open radical nephreetomy were divided into three groups,A group with ice-slush renal hypothermia,B group with gravitational retrograde ice-cold infusion,C group with retrograde ice-cold infusion by perfusion pump.After the kidney was dissected and the ureter was divided,the renal vasculars were clamped.The kidney was cooled by three methods respectively.The temperature of renal parenchyma was monitored for 15 min. Results Fifteen minutes later,the temperature of renal parenchyma of A group declined from 34.4℃ to 5.4℃,B group from 34.8℃ tO 23.8℃,C group from 35.1℃ to 22.3℃.Coneiusions Renal hypothermia can be achieved by retrograde cold saline infusion and the perfusion pump may accelerate the speed of cooling.

Aged ; Diabetes Mellitus, Type 2 ; therapy ; Humans ; Walking

BACKGROUND:Atlantoaxial fusion is currently the main surgical treatment of atlantoaxial dislocation, but the premise is at the expense of atlantoaxial range of motion, especial y the rotation motion. Restricted non-fusion fixation is a method that can maintain the atlantoaxial stability, while retain the atlantoaxial range of motion. Further research should be performed to compare the biomechanical characteristics between the two methods. OBJECTIVE:To develop a three-dimensional finite element model of atlantoaxial instability, compare and determine the biomechanical properties of posterior atlantoaxial restricted non-fusion fixation system and posterior atlantoaxial screw-rod fixation system. METHODS:A verified intact finite element upper cervical (C0-C3) model was established and analyzed by Simpleware 3.0, Geomagic 8.0, Hypermesh 10.0, Abaqus 6.9, and Rhino 4.0 softwares based on the CT data col ected from a 31-year-old healthy male volunteer. The moment couple of 1.5 N?m was loaded, which made the model movement in flexion-extension, lateral bending, and rotating direction, respectively. The range of motion was recorded and compared with the in vitro biomechanical experimental data to verify the effectiveness of the model. The ranges of motion of the posterior atlantoaxial restricted non-fusion fixation system model and the posterior atlantoaxial screw-rod fixation system model were analyzed using the finite element method under flexion, extension, lateral bending, and axial rotation;meanwhile, stress nephograms of the posterior atlantoaxial restricted non-fusion fixation system model were observed. RESULTS AND CONCLUSION:(1) There were 206 747 elements and 72 500 nodes in the intact model of upper cervical spine (C0-C3) in this experiment, and the range of motion of intact model validated with the reported cadaveric experimental data. (2) The range of motion of the posterior atlantoaxial restricted non-fusion fixation system group was similar to which of the posterior atlantoaxial screw-rod fixation system group in flexion-extension direction. (3) In lateral bending direction, the range of motion of the posterior atlantoaxial restricted non-fusion fixation system model was obviously limited, respectively. The range of motion of the posterior atlantoaxial restricted non-fusion fixation system model was larger than that of the atlantoaxial dislocation model and basical y same as that of the normal atlantoaxial model. (4) As to the rotating direction, the range of motion of the posterior atlantoaxial restricted non-fusion fixation system mainly disappeared at the atlantoaxial segment;by contrast, a majority of rotating motion was stil retained in the posterior atlantoaxial restricted non-fusion fixation system group. (5) The stress concentration occurred in the contact part between the screw and the connecting rod in posterior atlantoaxial restricted non-fusion fixation system model. (6) Results suggest that posterior atlantoaxial restricted non-fusion fixation system is effective and useful for atlantoaxial fixation. It not only restricted atlantoaxial flexion-extension, but also preserved axial rotation and lateral bending at the atlantoaxial joint.