China ; epidemiology ; Humans ; Precancerous Conditions ; diagnosis ; epidemiology ; pathology ; Stomach Neoplasms ; diagnosis ; epidemiology ; pathology ; Topography, Medical

Objective To evaluate the treatment effects of double parabolic lingual springs appliance and straight wire appliance therapy in skeletal class Ⅲ malocclusion. Methods 12 cases with skeletal class Ⅲ malocclusion were treated by double parabolic lingual springs appliance and straight wire appliance, cephalometric tracing measurement were taken in analysis,compared between pretreatment and posttreatment in each case. Results The comparison of before and after orthodontic treatment showed angle SNA increased by 2.80°, angle SNB decreased 1.39°ANB decreased by 4.88°. Conclusion The above metioned technique could be a reliable way to treat mild and moderate skeletal class Ⅲ malocclusion.

Although choledochoscope has been described as an ideal approach for cholelithiasis, larger,impacted or residual biliary duct stones could hardly be taken out. Choledochoscopic laser lithotripsy was used in 1978. At present, however, it has not wildly been applied in the biliary surgery. In this article, we reviewed the domestic and foreign literatures to state the application and prospect of choledochoscope combined with laser lithotripsy in cholelithiasis.

Objective To investigate the relationship between the osteopontin ( OPN ) expression of colorectal cancer tissues with the clinical characteristics and prognosis. Methods The expressions of OPN in colorectal cancer tissues and their corresponding para-cancerous tissues from 112 cases of colorectal cancer patients were detccted by immunohistochemistry . The relationship between the expressions of OPN and the clinicopathological features in pait-ients with colorectal cancer were analyzed. Results The OPN expression of colorectal cancer tissues was signifi-cantly higher than their corresponding adjacent normal tissues, the difference was statistically significant ( P <0. 05). Its expression was significantly associated with tumor size, histological differentiation, TNM stage, tumor status. Disease-free survival, and overall survival time of OPN protein positive expression group were lower than that of the negative group, respectively, the differences were statistically significant(P<0. 05). The expression of OPN in colorectal cancer tissues was an independent prognostic factor. Conclusion The expression of OPN is sig-nificantly increased in colorectal cancer tissues, and the positive expression of OPN is associated with the prognostic of patients with colorectal cancer.

Humans ; Larynx ; surgery ; Neurilemmoma ; surgery

Objective: To analyze the efficiency of chronic disease prevention and control of primary health service institutions in Shandong, and provide policy references. Methods:Using CRS and VRS models from DEA to analyze the representative input and output indicators in primary health Service institutions. Results: The overall efficiency of chronic disease prevention and control in primary health service institutions is low, and the actual output was insufficient compared with the target output. Conclusion: Strengthening chronic disease control measures in high-risk group and establishing management mechanism leaded by the goal of chronic prevention and control in order to achieve optimal allocation of resources.

Objective To evaluate the treatment outcome of nerve fascicle transfer for treatment of flexor elbow Method Fifty two cases of brachial plexus injury were involved The function of elbow joint was restored by using fascicle nerve transfer from part of median nerve, ulnar nerve, thoracodorsal nerve and contralateral C 7, to the muscular branch of the biceps Results There was no significant adverse effects of the donor function following partial nerve resection Twenty six patients had biceps strength M 4 and flexed elbow joint more than 90 degree Conclusion Partial nerve fascicle transfer to the nerve branches of biceps from the donor nerve can provide sufficient nerve fibers to reinnervate biceps

BACKGROUND: Studies showed cellular adhesion molecule and neurotrophic factor secreted from olfactory ensheathing cells (OECs) could protect the spinal neurons and promote the regeneration of spinal axon. OBJECTIVE: To compare the competence to repair spinal cord injury between olfactory mucosa OECs and olfactory bulb OECs. DESIGN, TIME AND SETTING: Randomized control animal experiment was performed in the central laboratory of Xidian Group Hospital between June 2007 and June 2008. MATERIALS: Twelve male SD rats were randomized selected and divided into experiment group (n=6, 23 months old) and control group (n=6, 3 months old). They were used for in vitro culture and purification of OECs; other 30 SD rats were randomized into three groups of 10 rats each: neonatal rat olfactory bulb OECs transplantation group, normal olfactory mucosa OECs transplantation group and blank control group.METHODS: Spinal cord injury models were produced in 30 rats, which were transplanted with the neonatal rat or SD rat OECs cultured in vitro. No transplant was given in the control group. MAIN OUTCOME MEASURES: At 4 and 8 weeks postoperation, the Basso, Beattie, Bresnahan (BBB) score for nerve function, the evoked potential of legs and the histopathological diversify of injured spinal cord. RESULTS: Seven rats died dudng the experiment process, and the death rate was similar between groups. At 4 and 8 weeks postoperation, there was no significant difference in the BBB scores between neonatal rat olfactory bulb OECs transplantation group and normal olfactory mucosa OECs transplantation group (P > 0.05), which were both significantly higher than blank control group (P < 0.001); the BBB scores in two transplantation groups were higher at 8 weeks than at 4 weeks (P < 0.01 ). At 4 weeks postoperaUon, no animal was shown to elicit motion evoked potential, but it was present in two transplantation groups at 8 weeks, with no significant difference between two groups (P > 0.05). The blank control group had still no motion evoked potential (P < 0.001 ). At 8 weeks postoperation, more cell infiltrations were found in the injured spinal cord of two transplantation groups, while few in the control group.CONCLUSION: Both OECs dissociated from olfactory bulb and olfactory mucosa have the same ability to repair the injured spinal cord, and their effect is similar.

Objective To study the indoor air pollution characteristic and control countermeasure. Methods 10 office rooms and 100 houses that were newly redecorated for one month were chosen for the determination of formaldehyde, TVOC, ammonia and radon. The distribution characteristic of time, space of pollutants was studied. Results The concentrations of formaldehyde, TVOC, ammonia in the investigated office rooms exceeded the standard limits greatly, the average levels were 0.533, 5.57and 0.396 mg/m3 respectively. In the 100 houses, the rates of exceeding limit of formaldehyde, TVOC, ammonia were 35.0%-78.8%, 56.0%-75.0% and 37.0%-41.7% respectively. In the two kinds of sites, the concentration of radon did not exceed the limit. Along with ventilation, the concentrations of pollutants went down. Conclusion Indoor air pollution caused by redecoration is serious in a certain degree in Lanzhou.

Objective To study the influence of edaravone on malondialdehyda(MDA)and expression of Hsp-70 and Bcl-2 in the perihematoma region in rats.Methods A total of 120 health male rats were randomly divided into false-operation group(n=20)、intracerebral hemorrhage(ICH)-therapy group(n=50)and ICH control group.Each group was further divided into 5 subgroups respectively according to 6 h、24 h、48 h、72 h and 5d after model creation.Cerebral hemorrhage model was duplicated with the method created by Fredrik.Brain water content and MDA were measured.Expression of Hsp-70 and Bcl-2 were assayed in each group with immunohistochemical method.Results Brain water content and MDA were lower in ICH-therapy group than those in control group(P