The 210-layer consecutive CT Dicom format image of a healthy human body thoracolumbar was directly reading into the Mimics,and defining bone organization threshold,withdrawing each outline,partitioning each edge of layer picture,selectively editing and repairing by hole processing.After the redundancy data was cleaned,the thoracolumbar 3-D finite element geometry model was acquired.Then area mesh could be introduced into Ansys software directly to compartmentalize mesh body,and then transferred the body mesh to mimics to assignment on the basis of CT values,then add the ligaments and joint-bindings to perfect the 3D finite element model in Ansys.Then bound the lower of L_1 and impose displacement-load in the upper edge of T_(12).The 3D finite element model was reconstructed using CT images from a patient of T_(12) and L_1 vertebral compression fractures.After that,a realistic appearance and calculation accuracy 3-D bone finite element model of thoracolumbar was established.The results showed that reconstructing a three-dimensional finite element model of thoracolumbar spine compression fractures based on fracture mechanism by information from normal human is scientific and effective.

Objective To evaluate quantitatively perfusion in coronary microcirculation by transvenous myocardial contrast.echocardiography(MCE).Methods Transvenous MCE was performed before and after LAD stenosis in 12 dogs.Results Peak intensity and area under curve(AUC)in time-intensity curves were significantly decreased after LAD stenois,peak intensity and AUC were strongly related with CBF flow(peakintensity:r=0.9405～0.09666,P=0.0005～0.0001;AUC:r=0.8239～0.9761,P=0.0103～ 0.0056).Conclusion Transvenous MCE could quantitatively assess the perfusion in coronary microcirculation.

Objective To investigate the effects of low intensity pulsed ultrasound ( LIPU ) on articular car-tilage injury in rabbits. Methods Ten adult New Zealand white rabbits with bilateral, full-thickness osteochondral defects in the cartilage surfaces of intercondylar fossas were used as model. The left knees in these rabbits treated with LIPU were used as experimental group. The right knees treated with sham intervention were used as controls. All the rabbits were sacrificed at the 8th week postoperation for gross appearance grading, histological grading and semi-quan-titation of proteoglycan in the repairing tissue. Results Compared with controls, defects treated with LIPU im-proved significantly as shown by gross appearance grades, histological grades and optical density of toluidine blue at the 8th week postoperation (both P <0.05). Conclusion LIPU could accelerate repairing of articular cartilage in-jury.

Objective:To observe the effect of applying tuina to exterior-interiorly connected meridians for post-stroke upper limb spasticity.
Methods:A total of 150 patients with post-stroke upper limb spasticity were randomly allocated into a treatment group (n=75) and a control group (n=75) by the random number table. Patients in the treatment group received tuina on exterior-interiorly connected meridians, whereas patients in the control group received standard rehabilitation therapy. The therapeutic efficacies in both groups were observed after 3 weeks of treatment.
Results:The total effective rate in the treatment group was 89.3%, versus 61.3% in the control group, showing a statistically significant difference (P<0.05). After the treatment, the muscle tones by the modified Ashworth scale (MAS) were significantly improved in both groups (bothP<0.05); and the improvement of muscle tone was more significant in the treatment group than that in the control group (P<0.05).
Conclusion:Applying tuina to exterior-interiorly connected meridians can obtain an exact efficacy for post-stroke upper limb spasticity.

Objective:To explore whether Tuftsin can attenuates symptoms in experimental autoimmune encephalomyelitis mouses.Methods:C57BL/6 mice were immunized with MOG35-55 peptides,and evaluated for clinical neurological score every day .10 mice of the EAE were injected with Tuftsin subcutaneously .The spinal cord were stained by the methods of Haematoxylin Eosinstain , Luxol Fast Blue stain.The mRNA expression of IL-10 and TNF-αfrom brian tissue were detected at the 28 days by RT-PC method.Results:The controlled mice had no symptoms of disease and HE ,LFB were normal.Comparison EAE group with Tuftsin group of HE,LFB,EAE group were server than Tuftsin group.The expression of IL-10 in Tuftsin group was higher than EAE group.The expression of TNF-αin Tuftsin group was lower than EAE group .Conclusion: Tuftsin can attenuates symptoms in experimental autoimmune encephalomyelitis mouses .

Objective To observe the effect of low intensity pulsed ultrasound (LIPU) in repair of the articular cartilage injury in rabbits. Methods Osteochondral defects in the cartilage surfaces of femoral intercondylar fossae were made in 33 healthy adult New Zealand White rabbits, of which the knee lesions of the left hind legs were treated with LIPU (LIPU group) while that of the right ones used as control group. All animals in two groups were sacrificed respectively at the 2nd, 4th and 8th weeks postoperatively for gross appearance observation and histological examination. Results The ultrasound-treated tissues became more mature with in advance repair or regeneration. The repaired tissues in the LIPU group were near to normal hyaline cartilage tissues at the 8th week postoperatively, while the repaired tissues in the control group were weak, near to fibrocartilaginous tissues. Conclusion LIPU can promote repair of articular cartilage injury in rabbits.

ObjectiveTo analyze the correlated clinical significance by testing the serum tumor necrosis factor like ligand-1A(TL1A) levels of patients with rheumatoid arthritis(RA). MethodsThe serum from 100 RA patients and 50 healthy controls were selected. The serum TL1A concentrations of the two groups were detected by ELISA. The correlations between serum TL1A levels and clinical features or laboratory examinations of RA patients were investigated. Mann-Whitney U test, t-test, x2 test and Spearman correlation analysis were used for statistical analysis. ResultsThe levels of serum TL1A in RA patients [(959±1146) pg/ml]were significantly higher than those of the healthy controls[(529±154) pg/ml, t=3.683,P＜0.01]. The levels of serum TL1A in RA patients with positive rheumatoid factor(RF),occult rheumatoid factor immunoglobulin G (HRF-IgG) and anti-cyclic citrullinated peptide antibodies (anti-CCP)[(962±1043 ), ( 833±1104 ), (908±1115 ) pg/ml, respectively]were significantly increased when compared to those in RF, HRF-IgG and anti-CCP negative RA patients[(628±r343), (576±134),(628±401) pg/ml, respectively, t=3.224, 1.317, 1.003; P＜0.05]. The positive rates of RF, HRF-IgG and anti-CCP in the TL1A positive group(90％, 42％, 85％) were significantly higher than those of the TL1A negative group (56％, 11％,33％) (x2=-0.372, -2.402, -2.774; P＜0.05). ConclusionThe level of serum TL1A is significantly elevated in RA and it is significantly associated with auto-antibodies in RA including RF, HRF-lgG and antiCCP antibody, which may be a factor for unfavorable prognosis of RA patients.

Objective:To isolate cell spheres containing cancer stem cells (CSCs) from lung cancer cell lines (A549 and H1299) and iden-tify their biological characteristics. Methods:By adopting the method of serum-free suspension culture, A549 cells and H1299 cells were cultured on no-adhesion plate to form tumor spheres. Clone assay, CCK-8 assay, and Transwell assay were employed to observe proliferation, self-renewal and invasion of tumor spheres. Besides, RT-PCR was performed to compare the expression levels of stem cell markers between sphere cells and adherent cells. Adherent A549 cells and A549 cell spheres were inoculated subcutaneously in nude mice and the tumor growth was assessed. Results:Isolated CSCs from A549 cells and H1299 cells in serum-free medium (SFM) without adhesion could grow as floating cell spheres. The results demonstrated that the self-renewal, proliferation and invasion of A549 and H1299 sphere cells were stronger than parent cells (P<0.05). When compared with adherent cells, the mRNA level of expres-sion of cell spheres' stem cell markers (Oct4 and Nanog) were significantly high (P<0.05) and A549 spheres had a stronger tumorigenici-ty in nude mice. Conclusion:SFM without adhesion can be a quick and easy method to construct stem cells model from human lung adenocarcinoma cell lines A549 and H1299.

Aim To determine the function of nuclear factor-κB ( NF-κB ) in immunological liver injury of rat model and its effect on CYP2E1 expression, content and metabolic activity. Methods The immunological liver injury rat model was prepared by injection of Ba-cillus Calmette Guérin ( BCG,125 mg · kg-1 ) for 14 days. The hepatic tissue injury was revealed by hema-toxylin and eosin ( HE ) method and serum concentra-tion of alanine aminotransferase( ALT) , aspartate ami-notransferase ( AST ) respectively. CYP450 total con-tent in hepatic homogenate was determined by spectro-photography. The expression of CYP2E1 protein was detected by Western blot analysis. The enzyme kinetics of CYP2 E1 probe drug chlorzoxazone was evaluated by high-performance liquid chromatography ( HPLC ) as-say. Results The results showed that BCG-pretreat-ment ( 125 mg · kg-1 ) significantly increased the weight of liver and spleen, serum levels of ALT and AST(P<0. 01) , and decreased CYP2E1 expression, content and metabolic activity ( P <0. 05 ) . Adminis-tration of ammonium pyrrolidine dithiocarbamate (PDTC) (50, 100, 200 mg·kg-1) reversed the a-bove hepatic injury stimulated by BCG in vivo. Moreo-ver, PDTC dose-dependently inhibited the down regu-lation of CYP2 E1 ( P<0. 05 ) . Conclusion Passiva-tion of NF-κB can inhibit the down regulation of CYP2 E1 in liver tissue of immunological liver injury rats;NF-κB may be involved in CYP2 E1 down-regula-tion.