[Objective]To investigate the therapy of human enbryonic olfactory ensheathing cells(hOECs) transplantation on adult rats' transected spinal cord.[Method]Separated,cultured hOECS from abortus were obtained and percent age of P75 positive cells was calculated.Twenty-four Wistar rats were choosen and divided into experimental group and control group randomly.All rats of two goups were transected at the T_(10) segment of spinal cord.Nine to ten days later 5 ul(2.5?10~5) hOECs(labled by Hoechst 33342) were injected in the contusion area of lesion site in transplantation group.In control group same volume of DMEM-F12 were transplanted.1,2,4,6,8 and 10 weeks later all rats were estimated by system of the BBB locomotion score respectively.Then part of them were killed.The tissue section of spinal cords were separated and inspected by fluorescence microscope or the methods of immunohistochemical staining.Data were processed with statistical tools in double-blinded condition.[Result]Transplanted hOECs can survive for at least ten weeks and even migrated from the injuried area in spinal cord.From 4 weeks to 10 weeks the BBB locomotion scores of experimental group were improved significantly contrasting to that of control group(P

Objective To investigate the clinical effect of mini -plate and kuntscher pin fixation in the treatment of metacarpus and phalange fracture.Methods 113 FMB and FPB patients were divided into OSG (58 patients)and CTG(585patients)group according to random number table.Statistics of postoperative recovery and complications in the two groups were collected and analyzed after research.Results In 58 patients of OSG group,the total active bending from 2 -5 metacarpophalangeal joints to phalangeal joints of 28 cases(48.28%,χ2 =8.562,P =0.035 )were beyond 220°,19 cases (32.76%,χ2 =8.935,P =0.024)were between 180 -220°, 11 cases (51.72%,χ2 =9.365,P =0.012)were less than 180°.The total active bending fromthumb metacarpopha-langeal articulation to interphalangeal joint of 30 cases (51.72%,χ2 =9.365,P =0.012)were beyond 220°, 18 cases (31.03%,χ2 =8.747,P =0.009)were between 180 -220°,10 cases (17.24%,χ2 =8.932,P =0.041) were less than 180°(P <0.05).Conclusion AO Mini -plates surgical method has advantage of parking position accuracy,dissection stable fixation,functional recovery soon and less complication in the treatment of FMB and FPB patients,which is worthy of promotion.

Objective To present some revision surgery for correcting short and bulky outward appearance of reconstructed finger pulp in toe-to-hand transfer. Methods Since Sep. 1998 to Dec. 2006,in a series of 33 patients, 39 fingers had been reconstructed with 2nd toe. In order to change the shape of bulbous distal toe segment into a normal tapering fingertip, revisional operations had been designed, i.e. (1)Excision of bulky skin and excessive soft tissue from one or both sides of the finger pulp. (2)Transfer and inlaid the excised lateral soft tissue flap to the central constricting part of the finger pulp. (3)Full thickness skin graft to palmar central narrow part of toe pulp. 4. Rotational transfer of local lateral "L" shape flap. Results All the patients healed by first intention with no skin necrosis occurred. The bulbous rectangular shaped toe pulp were corrected and outward appearance were much improved in most cases. Though the outward appearance in one simple skin graft case was not satisfactory in correcting flexion deformity of distal segment and increased its circumference. Conclusion In toe-to-hand transfer, the distal segment of reconstructed finger often shown to have an bulbous toe pulp appearance, which may bring psychological burden to the patient and their relatives. Simple revisional surgery recommended here may yield favorable improvement.

Objective To elucidate the molecular basis on the differences of infectivity in infected cells between Sindbis virus(SINV:YN87448 virus)and Sindbis like virus(SINLV:XJ-160 virus).Methods Compare the E(glycoprotein)gene sequence and secondary structure of YN87448 virus and XJ-160 virus by bioinformatics analysis.Analyze the contribution of E gene to the biological differences between SINV and SINLV by constructing recombinant virus.Results By bioinformatics analysis,YN87448 virus and XJ-160 virus have the same genomic structure,which has 11 717 nt and 11 626 nt respectively.There are 82 amino acid differences between E gene of these two viruses,and showed scattered distribution.The main peak is basically the same for the hydrophobic of the E gene protein,but in some region existing small differences.The recombinant virus which exchanged the E gene of XJ-160 virus with YN87448 virus totally showed the biological character of YN87448 virus,either in the showing time of CPE,plaque forming time and plaque diameter,or in expression of functional proteins.Conclusion E gene plays a major role in the differences of infectivity in infected cells between SINV and SINLV,this result provide the molecular biological evidences for elucidating the biological differences between SINV and SINLV.

Objective To introduce 13 clinical cases of reconstructing traumatic defect on skin of thumb and first web using nail skin flap of big toe connectedwith tibial flap of second toe.Methods From May 2003 to April 2007,a series of 13 case8 of traumatic thumb and first web defect were treated by transplantation of nail skin flap of big toe connecting with tibial skin flap of second toe.Among which two total hand degloving injury cages were included too.Two kind of way according the Gilbert type of the Ist metatarsus dorsal artery were used.Results All the cases were successful and healed by first intention.The contour of reconstructed thumbs showed to be normal or approximately normal.Follow-up examination were obtained in nine cases for 3-17 postoperative months(average 7 months).Sensations of pain,touch and temperature recovered.The two-point-discrimination sensation were found to be 7-17 mm respectively.Opposition measured were 60°-85°(average 75°).All the patients can be back to work and restored activities of daily living.Conclusion In treating soft tissue defect of thumb and first web,transplantation of the nail skin flap of big toe connecting with tibial lateral skin flap Can yield ideal skin covering and exceHent motor function.

Objective To discuss the clinical application and therapeutic effect of repairing deformed thumb in the way of transposition of abandoned polydactyly with neurovascular bundles.Methods From January 2005 to December 2011,six cases of type Ⅳ deformities of thumb duplications were treated with excision of thin and deformed thumb phalangette of trunk,the redundant hyperdactylia,which was well-formed and involved in the first web space,was then transposed with neurovascular bundles to the thumb phalangette of trunk by the first web space and the side of thumb for fixation followed by repairation of form of thumb phalangette.The surplus metacarpal bone and phalanx of duplications were removed and the first web space was reconstructed.Results All 6 cases of heterotopic thumb phalangette transplanted to the deformed thumb phalangette were completely survived.Kirschner wires were removed 4 weeks after operation.Fracture healing occured after 4 to 6 weeks after operation.Postoperative follow-up period ranged from 3 months to 1 year.Transplanted thumbs possessed well-formed appearance with previous sensation on the finger pulp as well as excellent function of grabbing and opposing.Conclusion To repair deformity of trunk thumb in the way of microsurgery by means of transposition of duplicated thumb with neurovascular bundle which should be abandoned,is a simple operation with satisfactory and reliable postoperative effect.It shall be spred and applied.

AIM:To observe the effect of Jianwei Yuyang Granule(Radix Bupleuri,Radix Codonopsis,Rhizoma Atractylodis macrocephalae,Rhizoma Corydalis,etc.) on the expressions of PS_2 and platelet activating factor(PAF) of helicobacterpylori-associated gastritis and study the potential mechanisim. METHODS:80 cases were divided into two groups.Jianwei Yuyang Granule group(42 cases) was given Jianwei Yuyang Granule and the control group(38 cases) was given three kinds of western medicines combined.H.pylori was detected by urease test on biopsy specimen of gastric mucosa and Warthin-Starry method and the changes of expressions of PS_2 and platelet activating factor(PAF) were observed.The contents of aninohexose and phosphatide in gastric mucosa were determined at the same time.All patients were rechecked gastroscope in the 6th week. RESULTS:The total effect rate of Jian-wei Yuyang group was higher than that of the control group(P

Objective To investigate the effect of hydroxycam ptothecine on PS2 and COX-2 in nude mice by human bile duct carcinoma QBC939 cells in order to analyze the correlation between PS2 and COX-2 expressions and the development of the tumor.Methods After the model of the transplanted tumor of subcutaneous tissues located the nude mice was constructed by human bile duct carcinoma QBC939 cells,30 nude mice were randomly divided into 3 groups,namely,control group,hydroxycamptothecine low-dose group and high-dose group.The growth of the transplanted tumor was observed and immunohistochemical staining combined with image analysis was used to determine the expression of PS2 and COX-2 in the tumor tissues.Results Compared with that of the control group,the content of PS2 in the tumor tissues was increased in hydroxycamptothecine low-dose group and high-dose group.The content of COX-2 was decreased and the growth of the transplanted tumor was inhibited in both hydroxycamptothecine low-dose group and high-dose group(P

ObjectiveTo observe the in-hospital and long-term results in patients with drugeluting stenting age≥70 years with unprotected left main (UML) coronary artery disease.MethodsIn this retrospective study, 100 patients with UML disease were enrolled. Death, myocardial infarction, repeated revascularization and composite end points during follow-up were compared between groups aged ≥70 years and control aged ＜70 years.ResultsThere was no remarkable distinction between the two groups in cardiovascular risk factors, anatomic findings of coronary artery disease and stent variables. No significant differences were found between the two groups in procedure success rate[96.2％ (50 cases) vs. 97.9％ (47 cases) ,x2 = 1.75, P＞0.05] and in-hospital mortality [3.8％ (2 cases) vs. 2.1％ ( 1 case), x2 = 0.27, P ＞0.05]. Patients were clinically followed for an average time of 22.0 months in the elderly group and 23.0 months in the control group (t= -0.78, P＞0.05). There were no significant differences in death[3.9％(2 cases) vs. 2.1％(1 case) ,x2 =2.51,P＞0.05], myocardial infarction[7.7 ％ (4 cases) vs. 4.2 ％ (2 cases), x2 = 0.55, P＞0.05], repeated revascularization [13.5％ (7 cases) vs. 12.5％(6 cases) ,x2 =0.02, P＞0.05]and composite endpoints of death, myocardial infarction and repeated revascularization[30.7％ (16 cases)vs. 18.8％ (9 cases),x2 = 1.92, P＞0.05] between the elderly group and the control group.ConclusionsThe procedure success rate and in-hospital mortality of drug-eluting stent implantation in elderly patients aged≥70 years old with unprotected left main coronary artery are comparable to group aged＜70 years. The main endpoints including death, myocardial infarction and repeated revascularization are favorable at about 2 years clinical follow up. It is safe and efficacious to implant drug-eluting stent in patients aged ≥70 years old with unprotected left main coronary artery.

To analyze features of the rabies epidemic in China between 2007 and 2011,identify factors influencing the epidemic and to provide a scientific basis for further control and prevention of rabies,Descriptive epidemiological methods and statistical analysis was used on data collected from the National Disease Reporting Information System between 2007 to 2011 and the National Active Surveillance System between 2007 and 2010.Our analysis shows that while the number of human rabies cases decreased year by year,the number of districts reporting cases did not show significant change.The situations in Guangdong,Guangxi,Guizhou and Hunan provinces clearly improved over the period but they remain provinces with high-incidence,and consequently influence the epidemic situation of surrounding provinces and possibly the whole country.Summer and autumn were high-incidence seasons.Farmers,students and pre-school children represent the high-risk populations,and rates of cases in farmers increased,those for students decreased,and pre-school children remained unchanged.Provinces with active surveillance programs reported a total of 2346 individual cases,of which 88.53％ were associated with canines.Postexposure prophylaxis (PEP) of rabies cases was not significantly improved,whereas PEP in post-exposure population was good.In rural regions of China,canine density was reduced somewhat,and the immunization rate increased slightly.Finally we show that while the epidemic decreased 2007 to 2011 in China,cases continued to be diffused in certain regions.Lack of standardization of PEP on rabies cases was the main reason of morbidity.The high density and low immunization of dog in rural areas and the defective situation of PEP are still continuous occurrences in China and remain a cause for concern.