Objective To compare the clinical effect of sternocleidomastoid muscle medial border entry and neck line approach in thyroid reoperation .Methods 124 patients with thyroid reoperation were randomly divided into two groups ,62 cases in each group .The observation group used sternocleidomastoid muscle medial border entry , the control group received neck line approach .The surgical approach and the impact of postoperative complications of the two groups were analyzed .Results Side subtotal bilateral subtotal ,full cut side ,bilateral full cut ,side subtotal+side full cut five kinds of surgical methods were implemented in the two groups ,the surgery way of both groups had no sig-nificant difference(χ2 =0.784,P>0.05).In the observation group,the total time of surgery and revealed thyroid , blood loss,hospital stay were better than those of the control group (t=13.357,4.489,18.364,7.294,all P<0.01). Conclusion In patients with thyroid reoperation using sternocleidomastoid can get a clearer anatomical level ,which helps to reduce surgical trauma ,improve the patients'treatment effect .

BACKGROUND: Studies in recent years have suggested the involvement of chemoattractant cytokines in the recruitment of peripheral blood cells to the injured spinal tissue. Monocyte chemoattractant protein-1(MCP-1) belongs to the CC-type chemokines and is capable of specific chemotactic attraction of the macrophages.OBJECTIVE: To observe MCP-1 expression in the serum of patients with acute spinal cord injury and explore the possible mechanism of secondary spinal cord injury.DESIGN: A non-randomized and controlled concurrent pilot study.SETTING and PARTICIPANTS: Eight patients with acute incomplete spinal cord injury and 8 with compression fracture of the spine were treated in the Department of Orthopaedics, Renmin Hospital of Wuhan University during the period from January 2001 to December 2002. Another 8 healthy subjects were included as the controls.METHODS: In the next morning after hospitalization, totally(8-10) mL of fasting peripheral venous blood was collected from the patients and the serum separated for determination of MCP-1 level with enzyme-linked immunosorbent assay(ELISA) . Serum MCP-1 level was also measured in the healthy subjects in the same manner.MAIN OUTCOME MEASURES: Serum level of MCP-1 in each group.RESULTS: Serum levels of MCP-1 in the healthy subjects, patients with compression fracture of the spine and those with acute incomplete spinal cord injury were(124 ± 15), (184 ±21) and(428 ± 11) ng/L, respectively, with significant differences between any two groups( P ＜ 0.01 ).CONCLUSION: MCP-1 may induce secondary inflammation by recruiting inflamnatory cells to the injury site and thus aggravate the spinal cord injury.

Objective To find out easily-processed and longly-preservated nerve allograft transplantation which has not only no-obvious antigenicity,but the integral structure of intermal nerve membrane.Mehtods Acquire the nerve allografts under sterile condition,submerge them into 50 ,70 and 85 percent of glycerol for 3 hours respectively at 37 Centigrade degree,then put them into the containers which contain 85 percent of glycerol. After sealed and preservated at 5 Centigrade degree for 6 weeks,the processed nerves can be used for transplantation.Results 14 nerve allografts processed with glycerol were transplanted in 10 patients with nerve defects varying from 2.5 to 18 cm. After follow-up for 5 to 42 months,the effects were proved to be satisfactory.Conclusion It is obviously effective to transplant nerve allograft processed with glycerol and preservated for 6 weeks for bridging the defects of peripherall nerve through a series of clinical observations.

ObjectiveTo observe the effects of chitosan injected intra-articular on cartilage degeneration of rabbits with osteoarthritis(OA).MethodsOA animal model was established by unilateral anterior cruciate ligament transaction(ACLT) in 18 rabbits.After operation,animals were randomly divided into the experimental group and control group with 9 rabbits in each group.The experimental group was treated with intra-articular injection of 0.3 ml of 2% chitosan every two weeks after operation.While,the control group was injected with 0.3 ml normal saline at the same time.All rabbits were killed at the 8th week.Cartilage degradation of femoral condyles was evaluated at macroscopic level and the changes of proteoglycan of articular cartilage matrix were detected by biochemical technique,and the expression of matrix metalloproteinases-1(MMP-1) was documented by immunohistochemistry.ResultsCartilage degradation in the control group was significantly more severe than that in the experimental group in macroscopic grading scale(P<0.05).The detection of proteoglycan showed that the quantity of glycosaminoglycans increased(P<0.01) and the chondroitin sulfate/keretan sulfate declined(P<0.05) in experimental group compared with that in the control group.Immunohistochemistry study showed that the expression of MMP-1 in the control group was significantly more severe than that in the experimental group(P<0.01).ConclusionChitosan can prevent cartilage degaradation and protect cartilage.

Objective To investigate the epidemiology of 10 000 patients with mammary gland disease.Methods 10 000 mammary gland disease cages during 1987～2006 in Yangquan Tumor Institute were collected,all patients had integrity case files and were diagnosed by molybdenum target radiography,near infrared ray,sonography,aspiration-needle biopsy or polyrrhea smear examination.Results In 8919 outpatient treated cases,7493 suffered cyclomastopathy(84%).1081 cases were inpatient cared(11%),the top five mammary gland disease are:breast cancer 342 cases,cyclomastopathy 252 cases,adenofibroma 104 cases,intraductal papilloma 86 cases and ductal ectasia 76 cages.For breast cancer patients,there were 125 cases during 1987～1996,3 were 21～30 years old and 23 were 31～40 years old.The number during 1997～2006 was 217,24 were 21～30 years old and 69 were 31～40 years old.Conclusion In 10000 cases,there are 7745 cyclomastopathy patients(77.45%)which takes the first place.Especially for 342(3.42%)breast cancer cases,the incidence grew up and patients age was much younger.

Objective:To obtain recombinant Profilin of silkworm,identify its immunogenicity,predict its B cell epitopes and construct the evolutionary trees. Methods: The nucleotide sequence of Profilin was acquired from NCBI,synthesized it and cloned it into pET-28 vector. Then,the recombinant plasimids were transformed to E. coli BL21. After induced by IPTG,recombinant protein was purified by Affinity chromatography. Furtherly,its allergenicity was identified by Western blot,the potential B cell epitopes was analyzed through DNAStar and build the evolutionary trees by MEGA5. 05. Results: The recombinant protein of Profilin was successfully expressed and purified by affinity chromatography. Besides,the protein contains a high IgE-binding activity with IgE existing in serum of patients allergic to silkworm. Conclusion: The recombinant proflilin has IgE-binding activity, and it is meaningful for fundamental research and specific diagnosis studies of allergic diseases caused by silkworm.

BACKGROUND:After years of development, various in vitro loading devices for vascular tension stress have been created both at home and abroad, mainly including rectangular base stretching method, circular base deformation method and four-point bending beam load method. Although the circular base deformation method can wel reflect the real situations in vivo such as the expansion of the alveoli and vascular pulsation, the strain on the membrane is actinomorphic. The four-point bending beam load method can just bring limited strain range and load time, along with a difficult strain regulation.
OBJECTIVE: To develop anin vitro loading device for vascular tension stress using the rectangular base stretching method.
METHODS:Thisin vitro loading device for vascular tension stress developed according to mechatronics design consisted of power supply module, control module, drive module and data acquisition module. The device could achieve the tensile control on silicon diaphragm by high-precision control of the motor rotation angle and rotational speed.
RESULTS AND CONCLUSION: Through tests and experiments, the device could meet the required range of parameters and simulatein vitro human tensile stress environment, which is preliminarily considered to develop successfuly, achieving that: (1) two work patterns: stress mode and strain mode so as to solve the standardization of silicone substrate as loading device; (2) tensile stress can be adjusted in a range of 0-5×105 Pa; (3) tensile strain can be adjusted in 0-40% range; (4) stretching frequency can be in the regulation of 0-80 times/min and the stretching time can be controled.

Objective To evaluate the performance of fast Treponema pallidum(TP) detection in voluntary blood donors and optimize the strategy for pre-donation screening.Methods Before blood donation,the gold standard TP test strip was used to make a fast detection.After blood donation,the TP-ELISA was used to test the blood.Then,analyze the donors′ anti-TP positive rate,times and intervals of donating,false positive and negative of TP fast detection.Results From 2014 to 2015,among 73 990 donors who were tested by using fast TP detection,0.71% of them(529 donors) were positive.Among the positive donors,89.2% of them(472 donors) were first-time blood donors.35 donors′ donating intervals were more than 3 years,who accounted for 61.4% of the donors who had donated for more than once.The numbers of the false positive obtained from fast TP detection were 5 and the false negative was 15.By applying the fast TP detection before blood donation,the rate of anti-TP positive had been declined from 0.71% to 0.17%.Conclusion The rejection rate of TP positive can be significantly reduced by using fast TP detection before blood donation.The fast TP detection can be used to optimize the pre-donation screening and promote blood donation service efficiency and level,while donating times and intervals of the blood donors were also considered.

AIM: To study signal transduction pathway of nitric oxide-induced PC12 cell death. METHODS: After PC12 cells were incubated with sodium nitroprusside(SNP), caspase-3 inhibitor Ⅱ plus SNP or p38 inhibitor-SB203580 plus SNP, cell survival rate was quantified by MTT assay and caspase-3 activity was measured with caspase-3 assay kits. RESULTS: SNP induced PC12 cell death in a dose- and time-dependent manner, and increased caspase-3 activity gradually. Both caspase-3 inhibitorⅡand SB203580 reduced cell death significantly, but SB203580 reduced caspase-3 activity significantly. CONCLUSION: NO might induce PC12 cell death through the activation of p38 and caspase-3.

Objective To evaluate CT in the diagnosis of olfactoryneuroblastoma.Methods The CT characteristics of 7 cases with esthesioneuroblastoma proven by surgery and biopsy were analyzed retrospectively.Results According to Kadish staging,there were 6 cases with stage C,1 case with stage B.All the tumor located in nasal cavity and invaded ethmoid sinus(7 cases),orbit(3 cases),maxillary sinus(2 cases),sphenoid sinus (2 cases),frontal sinus(1 cases).Intracranial invasion occurred in 3 cases.Among 4 cases of enhanced CT scanning,3 cases were obviously and heterogeneously enhanced,1 case was moderately enhanced.Conclusion CT scanning can define the area of tumor involvement and tumor staging,it is useful for clinical treatment.