Objective To observe the effects of sodium arsenite (NaAsO2) on the expression of transcription factor nrf2 (Nrf2) and heme oxygenase 1 (HO-1) in Chang liver cells, and to explore the possible mechanism by using buthionine sulfoximine ( BSO), a GSH synthesis inhibitor. Methods Chang liver cells were treated with NaAsO2 at the doses of 5, 10 and 20 ?mol/L, alone, for 24 h, or pretreated with BSO (3 mmol/L, 12 h). Western blot assays were used to detect the protein expression of Nrf2 and HO-1. Results The protein expression of Nrf2 and HO-1 significantly increased in 5, 10 and 20 ?mol/L of NaAsO2 alone groups, and Nrf2 and HO-1 protein expression was up-regulated even higher by BSO pretreatment (P

Objective To apply the virtual reality training in clinical education of rehabilitation therapy. Methods 26 undergraduate students majored in rehabilitation therapy were randomly divided into 2 groups during clinical education of physiotherapy. The experimental group (n=14) received virtual reality training first, and then with routine teaching, while the control group (n=12) learnt with routine teaching only. Self-assessment and physiotherapy test were conducted after training. Results The experimental group reported more interested, initiative and positive in training than those of the control group. The experimental group achieved higher scores in practical tests than the control group (P<0.05), while no significant difference in the theoretical examination between the groups. Conclusion Application of virtual reality training may improve the teaching of physiotherapy.

Corneal endothelial cell(CEC)is the most critical part for the cornea, of which activity can influence the postoperative vision.It is very important for the clinical cornea preservation considering the function and its self-purification of donor cornea.There are a variety of classical methods, which can significantly prolong the saving time of donor cornea with its good quality of CEC.We reviewed the published papers about present preservation methods of cornea, which can give us many suggestions for the clinical cornea preservation.

Objective To evaluate the effects of electrocautery assisted uvalopalatopharyngoplasty (UPPP) for obstructive sleep apnea and hyponea syndrome(OSAHS) .Methods Patients with OSAHS were randomly divided into two groups ,with 14 cases in each group .Group A was operated on with electrocautery ,while group B was operated on with the traditional method .The operative blood loss ,the operation time ,the tunica albuginea off time ,post operative pain ,surgical outcomes and complications were compared between two groups .Results The operative blood loss and the operation time of group A were much less than in group B (all P<0 .05) ,while no difference in the tunica albuginea off time ,post operative pain and surgical outcomes was found (P>0 .05) .Two groups of patients both had no serious complications .Conclusion The advantages of electrocautery assisted UPPP consists of less operative blood loss and less operation time .It deserves to generalize and apply in the future clinical treatments .

· AIM: To evaluate the combined effect of rapamycin ophthalmic solution and cyclosporin A ophthalmic solution on allogeneic transplantation in a rat model.rats were used as donors. The animals were randomly assigned to 4 groups. Group A: control (ophthalmic solution solvent 100μ L); group B: 2g/L rapamycin ophthalmic solution 100μ L; group C: 10g/L cyclosporin A ophthalmic solution 100μ L; group D: 2g/L rapamycin ophthalmic solution 50μ L and 10g/L cyclosporin A ophthalmic solution 50μ L, 4 times every day. The treatment was started on 2d after operation, and the animals were administered until rejection. The grafts were inspected by slit-lamp microscope and the corneal survival time was recorded. The pathologic changes were measured by light microscope.significantly prolonged compared with the control group (P ＜ 0.01). However, the combined therapy (group D) was significantly superior compared with group B and C (P＜0.05, P＜ 0.01). The histopathological findings showed that the inflammation cells, neovascularity in each treated group were significantly fewer than that in control group at 14d after operation.a double drug regimen with rapamycin ophthalmic solution and cyclosporin A ophthalmic solution for the control of acute corneal allograft rejection. It indicats that the combined therapy produced synergistic effect.

Objective To evaluate the value of non invasive examinations in the diagnosis of vascular disease of lower extremity. Methods Segmental systemic pressure (SEG), pulse volume recorder (PVR) and continuous wave (CW) were adopted to examination of 36 patients with arterosclerosis obliterans of lower limbs, and the foundings were compared with that of MRA and operation . Results In all 36 cases, non invasive examinations detected abdominal aorta and common iliac artery with femoral artery occlusion in 12 cases ,femoropoplitea artery occlusion in 28 cases, popliteal artery and the distal artery occlusion in 16 case; MRA together with operation confirmed abdominal aorta and common iliac artery with femoral artery occlusion in 11 cases, femoropopliteal artery occlusion in 32 cases and popliteal artery and the distal artery occlusion in 13 cases. The accurent diagnosis rate of non invasive examination was 85.7%. Conclusions Although PVR has not yet been used to replace the arteriography to directly observe the local situation of arterial lesions , it can preliminarily determine the obstruction sites and severe degree of the occluded arteries. PVR has convenient and reliability in the diagnosis,evaluation of the therapeutic effect and the postoperative follow up of blood vessel diseases,it is worthy to be widely applied in the clinical practice.

Objective:To investigate the effect of Ku70 silencing on the expression of apoptosis-related genes in human NSLC cell line,A549 and drug-resistant A549DDP.Methods:Expression of Ku70mRNA in human A549 cells was examined by RT-PCR.Expression of apoptosis-related genes was examined by PCR-Array assay.Results: The Ku70mRNA was higher in A549DDP cells than in A549 cells.The expression of BAX,TP53 and TP73 was significantly increased whereas the expression of TNFRSF1A and BFAR decreased in siRNA-Ku70 A549DDP cells when compared to those of A549DDP cells.Conclsion:The amount of Ku70 mRNA is higher in A549DDP cells,suggesting that Ku70 is important for drug-resistance; Silencing Ku70 might reverse the drug-resistance in A549DDP cells through regulation of expression of apoptofic genes.

Objective To analyze the related factors in new born failed in hearing screening and its audiological characteristics . Methods From May 2009 to Febrary 2012 ,952 infants within the 3 to 6-month-old with detailed birth records and hearing screen-ing records were reviewed in the study .They were born in Chongqing and surrounding areas ,but failed in the first and second hear-ing screening .They were tested by auditory brainstem response (ABR) ,distortion product otoacoustic emissions (DPOAE) ,tympan-ometry and stapedius reflex .Results The normal ratio of tympanogram ,normal group(74 .25% ) was higher than the high-risk group(69 .61% )(P<0 .05);The pass proportion of DPOAE in normal group(34 .57% ) was higher than high-risk group(27 .94% ) (P<0 .05);In normal group ,ABR response threshold >30 dBnHL was 55 .80% ,60 .36% in high-risk group .High-risk group′s hearing abnormality rate was significantly higher than the normal group (P<0 .05);In normal group ,mean threshold of ABR was (47 .64 ± 22 .86)dBnHL .While it was(50 .58 ± 25 .02)dBnHL in high-risk group .The threshold was higher in normal group than high-risk group(P<0 .05) .Conclusion premature birth ,low birth weight(<1 500 g) ,hyperbilirubinemia ,neonatal asphyxia ,pal-ace the virus infection ,mechanical ventilation ≥ 5 days ,≥ 2 high-risk factors are risk factors for hearing loss .Newborn hearing screening is a long and arduous task ,We should enhance screening efforts in infant with high risk factors ,and actively prevent and treat neonatal perinatal risk factors and reduce the incidence of hearing loss .

7% (OR=4.640,95%CI=1.064 to 20.239,P=0.041) were the high risk factors for myocardial ischemia in patients with type 2 diabetes.Conclusion Poor control of the 4 factors is the high risk factor for myocardial ischemia in patients with type 2 diabetes.Overall and effective control of such risk factors can decrease the incidence of myocardial ischemia and improve its treatment.

Objective To discuss the significance of platelet rich plasma in promoting bFGF and VEGF expression in would healing of rabbit buns .Methods The 24 rabbits were randomly divided into control group and experimental group .The sulfadiazine silver paint to the wound for control group and the platelet rich plasma gel evenly spread to the wound for experimental group .At 7th ,10th ,14th day ,4 rabbits of each group were randomly selected to sacrificed after anesthesiaed ,wound healing rate was compare in 2 groups ,HE staining and testimmunohistochemistry were conducted in each group .Results At 7th ,10th ,14th day ,the wound healing rate of experimental group were higher than those of control group .At 7th d ,the focal granulation ,cells and vessels inten-sive were more significant in experimental group than in control group ,at 10th day ,the wound fibroblast cells and capillary number are more significant in experimental group ,and at 14th day ,the most of fibroblasts translate into fiber cell and the capillary number decreased ,the fibroblasts proliferation was still active and fiber cell was less in the control group .At 7th ,10th day ,the expression of bFGF and VEGF were both higher ,but experimental group is obvious higher than control group(P<0 .05) ,but at 14th day ,the ex-pression of bFGF and VEGF were gradually declined and was not obvious statistics differences in the two group (P>0 .05) .Conclu-sion The platelet rich plasma could promote the big white rabbit scald wound healing ,while the main mechanism maybe the ex-pression of bFGF and VEGF increased in the early .