Objective To investigate the changes in trafficking of GluRl-containing AMPA (GluR1-AMPA) receptor and GluR2-AMPA receptor from cytoplasm to cell membrane in the spinal cord dorsal horn in a rat model of incisional pain.Methods Thirty-two adult male SD rats aged 6-8 weeks weighing 280-300 g were randomly divided into 2 groups:control group (group C,n =8) and incisional pain group (group Ⅰ,n =24).An 1 cm long incision was made in the plautar surface of right hindpaw according to Brennan et al.in group Ⅰ.Cumulative pain score (CPS) and paw-withdrawal threshold to yon Frey stimuli (PWT) were measured at 3 h and day 1 and 3 afar incision ( T1,2,3 ).The animals were sacrificed after pain behavior assessment.Their lumbar segments of the spinal cord (L3-6) were removed.The expression of GluR1 and GluR2 in cell membrane and cytoplasm in spinal cord dorsal horn was determined by Western blot analysis.The co-expression of Stargazing with GluR1 and GluR2 in the spinal cord dorsal horn was examined by co-immuno-precipitation.Results The CPS was increased and PWT decreased; the GluR1 expression in cytoplasm was decreased while the expression of GluR1 in cell membrane and the co-expression of Stargazing with GluR1 were up-regulated in group Ⅰ as compared with group C.There was no significant change in the expression of GluR2 in cytoplasm and cell membrane and the co-expression of Stargazing with GluR2 in group Ⅰ as compared with group C.Conclusion GluR1-AMPA receptor transfers from cytoplasm to cell membrane but GluR2-AMPA receptor does not in rats with incisional pain.

Objective To understand the status of tobacco epidemic among adults in Zhejiang province in 2013.Methods A total of 2 779 residents aged 15-69 years from 15 counties were selected using stratified multi-stage cluster sampling method and surveyed by face to face interview to complete questionnaire.Results The current smoking prevalence was 25.62％ among the adults 15-69 years old in Zhejiang province,50.88％ among males and 0.78％ among females.The daily smoking prevalence was 21.85％;40.56％ of the current daily smokers smoked within 30 minutes after waking;95.19％ of current smokers were not willing to quit;64.04％ of all respondents reported someone smoked in their own homes;67.48％ smokers thought they would continue to smoke even if the price of tobacco rises;21.09％ of all respondents saw tobacco AD at shops and on TV;42.00％ of people were aware that smoking could cause stroke,heart attack and lung cancer;89.69％ smokers still believed that low-tar cigarettes were less harmful than regular cigarettes;73.92％ of people agreed with completely no-smoking in public places.Conclusions Male smoking prevalence in Zhejiang remains at a high level,coupled with low rate of quitting,second hand smoke exposure remains a serious issue in household,low awareness of the harms of smoking for people,suggesting that the task of controlling smoking needs to be strengthened.

Objective To explore the clinical characteristics,pathological features,therapy and prognosis of a case of splenic marginal zone lymphoma (SMZL) with central recurrence,evaluation the safety and efficacy of rituximab intrathecal injection combined with intravenous chemotherapy.Methods Retrospectively analyze the case of SMZL with the central recurrence,and review the relevant literatures.Results According to the tests of MICM of bone marrow,spleen pathology,PET-CT and laboratory examination (LDH),patient was diagnosed as SMZL,IV group B,IPI and aaIPI was high risk group.After first-line therapy,the patient achieved complete remission.But then the central nervous system relapsed.The patients was treated with rituximab intrathecal injection combined with intravenous chemotherapy,the central focus disappeared.Conclusion SMZL belongs to low-grade lymphoma,which combined with central nervous system relapse is very rare.Rituximab intrathecal injection combined with intravenous chemotherapy in the treatment of the patients is safe to use,and have good clinical efficacy.

Objective To investigate the MRI features of children's joint tuberculosis of the appendicular skeleton, and to evaluate the diagnostic value of MR imaging. Methods Sixteen consecutive patients confirmed clinically and pathologically were examined with SE-T1WI, FSE-T2WI, FSE-PDWI and PD-SPIR in Philips Achieva 3.0T superconduct MR scanner. Axial, sagital and coronal images were obtained. Articular structure was all analyzed based on the affected parts and features of MRI. Results Hip joint and knee joint were most likely to suffer (each 25.00%). Metaphysis was affected in 13 patients with long signal intensity on T1WI and long signal intensity on T2WI. The changes of articular cartilage presented as abnormality of signal intensity in 6 patients with focal high signal intensity on T2WI. Thirteen patients presented as joint effusion. Synovial thickening in 4 patients showed moderate homogeneous signal on T1WI and slightly lower signal on T2WI. Articular soft tissue was involved in 16 patients, including the formation of cold abscess in 2 and cellulitis in 1 patient, showing long signal intensity on T1WI and long signal intensity on T2WI. Conclusion MRI has the advantage of being able to detect early abnormalities of bone marrow, cartilage damage and to evaluate joint effusion, synovial thickening and soft tissue lesions.

Objective To observe the surface electromyographic characteristics of the bilateral submen-tal muscles in dysphagia secondary to unilateral brainstem stroke. Methods A total of 25 subjects were recrui-ted. There were 8 stroke patients with dysphagia secondary to a left brainstem stroke and 7 stroke patients with dysphagia secondary to a right brainstem stroke. There were also 10 healthy controls matched in age and gender. The duration and peak amplitude of the submental muscle when swallowing 5 ml of warm water were recorded u-sing a surface electromyograph. Results The average amplitude of the left submental muscle in patients with a left brainstem stroke was significantly longer than that of those with a right brainstem stroke, but no significant differences in average duration were observed. Conversely, the amplitude of the right submental muscle in pa-tients with a right brainstem stroke was significantly longer than that of those with left brainstem stroke, but again there were no significant differences in duration. No significant differences were observed among the healthy con-trols. The amplitude and duration of both the affected and healthy sides of the patients were of course significantly longer or stronger than those of the healthy controls. Conclusion The swallowing function of the bilateral sub-mental muscles may be impaired among unilateral stroke survivors with dysphagia. The damage on the affected side is more severe than on the opposite side.

Objective To study whether the organs besides digestive system of musca domestica Ⅲ instar larvae have the capability of produceing musca β-glucosidase.Methods Tissues of malpighian tubules,trachea,epiploon and body wall of musca domestica Ⅲ instar lar-vae were dissected under anatomic microscope,and the expression of β-glucosidase gene in these dissected tissues were detected by reverse transcription PCR.And the tissue localization of β-glucosidase mRNA was further identified by in situ hybridization.Moreover,anti-cellulase was used to determinate the tissue distribution with immunohistochemical staining.The relative mRNA expression levels of musca domesticaβ-glucosidase gene in these organs were tested by real-time quantitative PCR.Results The reverse transcription PCR showed that the ampli-fication products of β-glucosidase gene were observed in tissues of malpighian tubules,trachea and body wall.β-glucosidase mRNA was shown in the epithelium cells of malpighian tubules,trachea and body wall by in situ hybridization,and it was almost the same in the results of im-munohistochemical staining.The real-time quantitative PCR showed that the relative expression quantity of β-glucosidase gene in malpighian tubules and body wall were higher than that in foregut,while it was lower in itrachea than that in foregut.And it was of statistical difference in gene expression level of β-glucosidase among these organs (P <0.05).Conclusion Malpighian tubules,trachea and body wall of musca domestica Ⅲ instar larvae have the function of secreting β-glucosidase.Combining with the characteristics of secreting β-glucosidase in most organs of digestive system,it may provide a new biological method for the prevention and treatment of human diseases transmitted by musca domestica with the use of taget gene β-glucosidase.

Objective To compare the incidence of adverse reaction,clinical manifestation and serious degree of adverse reaction and the intravenous injection time of the two different drugs,and provide references for the safe dosage of the drugs in clinic.Methods 200 patients from June 2009 to June 2010,who visited department of dermatology because of allergic dermatitis were chosen.They were randomly divided into the sodium thiosulfate group and the calcium gluconate group according to the drugs which were injected intravenouly.And incidence of adverse reaction,clinical manifestation and serious degree of adverse reaction and the intravenous injection time were compared between two groups.Results Compared with the calcium gluconate group,the rate of the adverse reaction of the sodium thiosulfate group is lower,and the average time needed is shorter,in addition,there is no serious adverse reaction during injection.Conclusions Intravenous injection of sodium thiosulfate has the advantage of lower incidence of adverse reaction,shorter time needed,and fewer serious adverse reaction,which is worthy of wide spread.

HepG2 ceils were treated with various concentrations of tumor necrosis factor-or (TNF-α) for 24 hours. RT-PCR and Western blot were used to measure protein tyrosine phosphatase-1 B(PTP-1B)expression, and luciferase reporter assay was used to detect NF-kB activity. The results showed that treatment of HepG2 cells with TNF-α for 24 hours led to upregulation of PTP-1B and NF-kB activity in a dose-dependent manner. Inhibition of NF-kB by PI)TC significantly attenuated TNF-α-induced PTP-IB expression in HepG2 cells. Thus, the transactivation of NF-kB seems to play an important role in the expression of PTP-1B in HepG2 cells induced by TNF-α.

Objective To investigate the effects of propofol on the phosphoryhtion of α-amino-3-hydroxy5-methyl-4-isoxazolepropionate(AMPA)receptor GluR1 subunits at Serine-831 and Serine-845 sites in the spinal cord dorsal horn in a rat model of visceral pain.Methods Thirty male SD rars,aged 6-8 weeks,weighing 200300 g,in which intrathecal catheters were successfully placed without complications,were randomly divided into 3 groups(n-=10 each):sham operation group(group Ⅰ),visceral pain group(group Ⅱ)and propofol group (group Ⅲ).Visceral pain was induced by injection of 10％ capsaicin 50μl via the rectum in groups Ⅱ and Ⅲ.While the equal volume of normal saline was given instead in group Ⅰ.Group Ⅲ received intrathecal injection of propofol 20 tg at 10 min before injection of capsaicin.While the equal volume of dimethyl sulfoxide was given instead of propofol in groups Ⅰ and Ⅱ.The cumulative pain score was recorded during 30 min after capsaicin injection.The rats were then sacrificed,and the lumbar segment(L3-6)of the spinal cord was removed for determination of the expression of GluR1 subunits and phosphorylation of GluR1 subunits at Serine-831 and Serine-845 sites in the spinal cord dorsal horn.Results Compared with group Ⅰ,the cumulative pain score and phosphorylation of GluR1 subunits at Serine-831 sites and Serine-845 in the spinal cord dorsal horn were significantly increased(P ＜0.05 or 0.01),but there were no significant differences in the expression of GluR1 subunits in groups Ⅱ and Ⅲ (P ＞ 0.05).Compared with group Ⅱ,the cumulative pain score and phosphorylation of GluRl subunits at Serine831 and Serine-845 sites in the spinal cord dorsal horn were significantly decreased in group Ⅲ(P ＜ 0.05 or 0.01).Conclusion Propofol can attenuate the visceral pain through the inhibition of the phosphorylation of AMPA receptor GluR1 subunits at Serine-831 and Serine-845 sites in tte rat spinal cord dorsal horn.

Objective To investigate the diagnostic value of intraductal ultrasonography (IDUS) for unconfirmed microlithiasis under endoscopic retrograde cholangiography ( ERC). Methods The data of 22 patients who were definitely diagnosed as having microlithiasis by IDUS and endoscopic sphincterotomy (EST) from July 2007 to September 2009 were retrospectively analyzed. Microlith was defined as choledo-cholith equal to or less than 3 mm in diameter. Using IDUS plus EST findings as golden standard of bile duct microlithiasis, the accuracy of diagnosis and rate of missed diagnosis of transabdominal ultrasonography, magnetic resonance cholangiography (MRC) and ERC were evaluated and compared. Results Diagnosis rates of trans-abdominal ultrasonography, MRC and ERC for extra-hepatic duct microlithiasis were 27. 3% (6/22), 38. 5% (5/13) and 27. 3% (6/22) , respectively. Detection rates of common bile duct dilation by 3 methods were 68. 2% (15/22) , 84. 6% (11/13) and 68. 2% (15/22) , respectively. The microlithiasis in 2 patients, which manifested as repeated acute pancreatitis, were missed by transabdominal ultrasonography , MRC and ERC, and were finally confirmed by IDUS. Conclusion Sensitivity of ERC in diagnosis of extra-hepatic microlithiasis is not superior to that of transabdominal ultrasonography or MRC. IDUS is a technically easy, safe, highly sensitive and accurate procedure, which is helpful in differentiation of etiology of recurrent acute pancreatitis.