To identify the expression of the molecule recognized by Pf18-3 mAb (Pf18-3 molecule) on various cells. Meth-ods: The expression of pr18-3 molecule was assayed by flow cytometry and confocal laser scanning microscope . Result: The molecule recog-nized by Pf18-3 mAb expressed on TSC and other stromal cells. Whereas, fresh thymocytes were Pf18-3 negative. Interestingly, the expressionof Pf18-3 molecule was gradually up-regulated on thymocytes after activation by ConA. This molecule mainly expressed on CD4+ CD8+ andCD4+ CD8- cells. Under confocal laser scanning microscope, the staining of fluorescence showed as ring around the cell, it changed grsduallystronger and thicker with activation. Conclusion: This study indicated that the Pf18-3 molecule was co-expressive molecule of MTSC and acti-vated tlymocytes,it was concemed closely about the activation of CD4+ C D8+ and CD4+ CD8- cells.

Objective To discuss the clinical application of multi-slice spiral CT angiography (MSCTA) in acute spontaneous intracranial hemorrhage .Methods 41 cases of acute spontaneous intracranial hemorrhage diagnosed with CT (including subarachniod cavity hemorrhage 29, intra-cerebral hematomas 12)were examined with MSCTA,the techniques of volume rendring (VR) and maximum intensity projection(MIP)were used. 7 cases of intracranial aneurysm closed by titanic clamp , 2 cases of cerebral arteriovenous malformation(AVM) and one case of AVM treated by intra-zest aneurysm excision,the post-operative MSCTA examination were received.Results 11 cases of intra-cerebral aneurysm, 4 cases of cerebral AVM and 1 case of AVM with intra-zest aneurysm were found among the 41 cases of acute spontaneous intracranial hemorrhage. MSCTA clearly demonstrated the size,neck and artery of aneurysms as well as the location, size ,zest shape, artery and vein of AVM. Pre-operative MSCTA findings of 7 cases of intracranial aneurysm clapped by titanic clap ,2 cases of cerebral AVM and 1 case of AVM treated by intra-zest aneurysm excision were confirmed with the operative findings.Post-operative MSCTA showed that the clamp location was normal; arteries were passable; zests of AVM were excised. Conclusion MSCTA is a non-injured, rapid and effective way to find the cause of acute spontaneous intracranial hemorrhage.It also has clinical application of post-operatiove assessment for intracranial aneurysm and cerebral AVM.

Objective To study the effect of mild hypothermia on MBP level in the CSF of TBI patients.Methods We investigated 36 patients with severe traumatic brain injury and randomized them into two groups,mild hypothermia treatment group and normathermia treatment group.The MBP levels in CSF and ICP and GOS scores in different time-points were evaluated.Results There was no significant difference between the two groups in the MBP level on the 1st day after treatment(P ＞ 0.05).The MBP levels in mild hypothermia group decreased greater than that in the control group on the 7th and 14th day after treatment(P ＜ 0.05).ICP decreased more in mild hypothermia group than in the control group(P ＜ 0.05)on the 7th and 14th day after treatment.Moreover,patients in mild hypothermia treatment group have better outcome than those in the control group(P ＜ 0.05),but there was no significant difference in the death rate between the two groups.Conclusion Mild hypothermia may provide neuroprotection by reducing MBP degradation and stabilizing medullary sheath,thus improving the prognosis of TBI patients.

Objective To investigate the effects of sustained abdominal aorta compression (SAAC) method combined with sim-plex chest compression (SCC) on partial pressure of end-tidal CO2 (PETCO2 ) ,return of spontaneous circulation(ROSC) ,resuscita-tion success rate and 24 h survival rate of the cardiac arrest model in domestic swines .Methods 20 healthy domestic swines were randomly divided into two groups ;the standard cadiopulmonary resuscitation group (S-CPR) by adopting SCC and the SAAC-CPR group by adopting SCC combined with SAAC during the resuscitation process .The cardiac arrest model was established by the ven-tricular fibrillation induced through the right atrium electrode alternating current stimulation .After 9 min of untreated interval ,CPR was performed .The two groups were firstly given SCC ,after 30 s ,the SAAC-CPR group was added with SAAC .PETCO2 ,coronary perfusion pressure(CPP) ,ROSC rate ,resuscitation success rates ,and 24 h survival rate were compared between the two groups .Re-sults PETCO2 in the SAAC-CPR group was higher than that during the SCC period in the SAAC-CPR group and in the S-CPR group during CPR[(22 .50 ± 3 .17 )mm Hg vs .(11 .80 ± 2 .57) mm Hg ,(13 .40 ± 3 .53) mm Hg ,P<0 .01)] .CPP in the SAAC-CPR group was also higher than that during SCC in the SAAC-CPR group and the S-CPR group[(50 .30 ± 6 .49) mm Hg vs .(14 . 12 ± 3 .01)mm Hg ,(14 .62 ± 2 .59)mm Hg ,P<0 .01)] .3 cases in the S-CPR group and 9 cases in the SAAC-CPR group restored ROSC within 3 times defibrillation ,succeeded in resuscitation after 20 min ROSC and underwent 24 h survival .The ROSC rate ,the resuscitation success rate and the 24 h survival rate in the SAAC-CPR group were significantly higher than those in the S-CPR group(P<0 .05) .No abdominal viscera damage was found in post mortem examinations of all the swines subjects .Conclusion SAAC combined with SCC can elevate PETCO2 ,CPP ,ROSC ,resuscitation success rate and 24 h survival rate ,which is conducive to CPR ,safe and easy to operate .

Objective To study the effect of mild hypothermia on β2- microglobulin (MG) level in cerebrospinam(CSF) of traumatic brain injury (TBI) patients.Methods Thirty-six severe TBI patients were divided into two groups randomly,mild hypothermia treatment group and normathermia treatment group,and the β2- MG level and GOS score in CSF of these patients in different time- point were evaluated.Results β2-MG level increased at first,then decreased gradually,and MBP level in mild hypothermia group decreased greater than the control group( P ＜ 0.05 ),moreover,patients in mild hypothermia treatment group had better outcome than the control group( P ＜ 0.05).Conclusion Mild hypothermia may act as neuroprotection by inhibiting inflammatory response or improving immune regulation.

Objective To explore the effects of empowerment education model on glycemic control and self-management behavior of community patients with diabetes. Method A total of 120 diabetics from 2 different communities were set as the observation group and control group. The control group was treated by routine medications and health education and the observation group was intervened with empowerment education model. After intervention for 6 months, the patients′blood glucose index and the diabetes self-management behavior were assessed and compared by scale of the diabetes self-care activities (SDSCA) between the two groups. Result By the end of the study, the glycemic index and SDSCA score in the former group were both significantly decreased than those in the control group (P<0.05), indicating the patients in the experiment group had better glycemic control and self-management behaviors compared with those in the control group. Conclusions Empowerment education model can arouse the internal motivation of patients to change their behaviors from passive to active acceptance in the health education. Empowerment education model can enhance diabetes patients′self-management conduct and the glycemic level.

Aim To observe the effect of pyrimidine dithiocarbamate (PDTC) on the variance of disc morphology and the expressions of TNF-α, MMP-9 in the cervical disc in cervical dynamic equilibrium rat models, and to investigate the roles of PDTC in the process of intervertebral disc degeneration and the mechanism involved.Methods Fifty-four SD rats were divided into three groups randomly, then the dynamic equilibrium rat model was established by cutting the nuchal superficial and deep muscle of the rats.The dynamic equilibrium rats with PDTC solution intraperitoneal injection after operations were defined as PDTC group (group A), the models with saline intraperitoneal injection after operations as saline group (group B), the rats of fake operation with saline intraperitoneal injection as blank group (group C), and the animals were sacrificed in batches 10 weeks, 12 weeks, 16 weeks respectively after operation.The C5, C6 vertebrae and C5/6 discs were harvested, and the disc morphology was observed.TNF-α, MMP-9 mRNA expressions were detected by q-PCR and protein expression was observed by Western blot.Results Compared with the saline group, the morphology of disc in PDTC group was destructed slightly and fiber ring arranged orderly.TNF-α, MMP-9 gene and protein expressions had no obvious changes (P>0.05) in blank group (group C) at each time point.The expressions of IL-6, MMP-9 mRNA increased with time in group B, but the amount increased fast firstly, and slow lately, reaching peak in 12 weeks.The expression of TNF-α, MMP-9 protein became steady in group B from 10 weeks compared with other time points(P>0.05).TNF-α, MMP-9 genes and proteins expression decreased obviously in PDTC group (group A) compared with saline group (group B) (P<0.01) at each time point, but higher than blank group C(P<0.01) at each time point.Conclusions TNF-α and MMP-9 are important inflammatory factors involved in rat cervical disc degeneration, PDTC relieves the degeneration of rat cervical disc by reducing the expression of TNF-α and MMP-9 via disturbing the NF-κB signal pathway probably, and PDTC may become potential medicine for disc degeneration.

Objective To evaluate the advantage of 3D printing technique in treatment of complicated ace-tabula fracture,we compared the early clinical outcomes of surgical treatment for complex acetabula fracture with traditional surgery(group A)and that assisted by 3D printing technique(group B).Methods A prospective anal-ysis of 35 complicated acetabula fractures was performed at our department,13 patients cured assisted with 3D printing technique. The other 22 patients performed traditional surgery. Surgical trauma,systematic inflammation, immediate reduction effect were evaluated by Matta image assessment standard,and rehabilitation functional status evaluated by Harris score system and Merled' Aubigne and Postel Grading standard. Results There were signifi-cant differences between the two groups regarding intraoperative blood loss,postoperative drainage,operation time (P<0.05),and group B was superior to group A.C reactive protein,leucocyte and creatine kinase MM in periph-eral blood in group A were much higher than those in group B at 24 hours postoperatively(P<0.01).The result of reduction of fracture is poor in group A,but excellent rate of reduction is about 84% in group B. The result of Merled' Aubigne and Postel scores grading was superior in group B(P = 0.013). The excellent and good rate of Harris function score in B group was significantly higher than that in group A(P=0.027).Conclusion The treat-ment of complicated acetabula fracture assisted by 3D printing is excellent in short-term follow up,achieving good reduction with limited trauma,long-term prognosis needs to be further followed up.