Objective:To investigate the influence of single nucleotide polymorphisms (SNP ) of cytidine deaminase (CDA)in the curative effect of gemcitabine,and to clarify the correlation of CDA SNP with the clinical prognosis of the advanced non-small cell lung cancer (NSCLC)patients.Methods:CDA 79A>C gene was detected by Sequenom Massarray Genotype System among 93 patients with advanced NSCLC who received chemotherapy of gemcitabine.The associations between CDA 79A>C polymorphisms and progression free survival (PFS)and overall survival (OS)were estimated using Kaplan-meier methods and Log-rank test for univariate analysis, and COX proportional hazards model was used for multivariate analysis.Results:There was no significant correlation between the CDA 79A>C SNPs with the clinical and pathological characteristics of NSCLC patients.The median PFS in the patients with wild genotype A/A was 9.3 months, while the median PFS in the patients with mutant genotype A/C and C/C was 11 months;there was no significant difference between them (P=0.061).The median OS in the patients with wild genotype A/A was 2 1.7 months, and the median OS of the patients with mutant genotype was 22.1 months;there was no significant difference between them (P=0.513).Conclusion:CDA 79A>C SNPs can prolong the PFS of the NSCLC patients,but it does not affect the OS of the patients.

Purpose: To observe the efficacy of intraperitoneal chemotherapy on advanced gastric cancer after radical treatment. Methods: 64 cases of patients with stage Ⅱ - Ⅲ treated by radical surgery were selected and randomly divided into systematic plus intraperitoneal chemotherapy group and systemic chemotherapy group. 3-year survival rate and 3-year recurrence rate were recorded. Results: The recurrence rate for the intraperitoneal chemotherapy group was 18.75% while the control was 43. 33% (P

AIM: To observe the influence of Jiaomu oil A2 on eosinophil manifold and CD34+ with marrow granule system mobilization in bronchial asthma mice.METHODS: The asthmatic mouse model was established by sensitization and challenge of the animals with 20% Al(OH)3+10% ovalbumen(OVA).After the mice were excitated for 10 d and giving medical therapy at the same time,the mice were executed,the bronchial-alveolar lavage inflammatory cells and the hemocytopoiesis cells were examined using Wrish-Giemsa staining.The expressions of interleukin-5(IL-5) and eotaxin(EON) in lung tissue and marrow were examined by in situ hybridization.The expression of IL-5 and EON albumen in lung tissue and marrow were detected by immunohistochemistry.The inflammatory cell infiltration and CD34+ cells in lung tissue were also observed by HE and immunofluorescence staining.RESULTS: Both Jiaomu oil A2 and prednisone significantly attenuated the pathological process degree of bronchial inflammatory reaction such as tissue swelling,reconstruction,hyperplasia,and epithelial cell shedding,and inhibited eosinophil count and infiltration caused by stimulation of allergic effect.Moreover,the two drugs markedly lessen the eosinophil density in tracheal surrounding tissue and marrow in asthma mice and depressed the differentiation of marrow myelocyte to eosinophil.Finally,the apparent decrement of CD34+IL-5,CD34+IL-5R,CD34+CCR-3 cells in bronchial tissue and marrow showed some relationship with the downregulation of IL-5,IL-4,GM-CSF in lung tissue.CONCLUSION: The effect of Jiaomu oil on airway inflammation in asthma mice is associated with inhibiting the mobilization of eosinophil and marrow granule system.

Objective To explore the effects of beta-amyloid precursor protein (APP17) peptide on the changes in the expressions of phosphoinositide 3-kinase(PI3K), protein kinase B(PKB) and phosphorylation of cAMP response element binding protein (p-CREB) in the neurons of hippocampal gyms in rats after cardiopulmonary resuscitation. Method Twenty-one Wistar rats were randomly divided into three groups, namely the sham-operated control group, the resuscitation group and resuscitation with APP17 peptide-treated group. The rat model of asphyxial cardiac arrest was made by clamping the endotracheal tube and the standard external cardiopulmonary resuscitation ( CPR) was performed until the restoration of spontaneous circulation ( ROSC) observed.ROSC was defined by the appearance of normal QRS waves of electrocardiogram and mean artery pressure ( MAP)≥60 mmHg for more than 10 minutes. Rats of resuscitation group and control group received intravenous 0.9%NaCl, and the rats of the APP17 peptide group were treated with APP17 peptide(10μg·300 g~(-1), i. v.) after ROSC. Rats were sacrificed by decapitation after reperfusion 2 hours and then the cerebral hippocampal gyrus was immediately separated to detect PI3K, PKB and p-CREB by immunohistochemistry ( IHC) and Western-blot analysis. Statistical comparisons were made by one-way analysis of variance (ANOVA) . Results IHC showed that there was no significant difference in PDK positive cells between resuscitation group and control group (2.75 ±1.80 vs. 2.53 ± 1.53, P > 0.05) . The PDK obviously more increased in the APP17 peptide group than in resuscitation group(5.85 ± 2.83 vs. 2.75 ± 1.80, P < 0.01) .The counts of PKB and p-CREB positive cells were obviously lower in resuscitation group than those in control group (2.45 ± 1.36 vs. 5.22 ± 2.50, P < 0.05);(2.41 ± 1.11 vs. 8.31 ±3.02, P < 0.01 ). The PKB and p-CREB positive cells were significantly higher in the APP17 peptide group than in resuscitation group (9.66±4.32 vs. 2.45 ±1.36, P < 0.01);(14.18 ± 3.96 vs.2.41 ± 1.11, P <0.01). The PKB and p-CREB protein levels in resuscitation group were lower than those in the control group. Conclusions The expressions of PKB and p-CREB in neurons of hippocampus gyrus 2 hours ROSC, and APP17 peptide could restorer the expression of PDK, PKB and p- CREB and thereby protect the neurons of hippocampus gyrus from the injury of CPR.

0.05), and significant difference was noticed after 14 day treatment as compared with pretreatment (P

Objective:To evaluate the importance of 3D-CTA with volume rendering for the diagnosis of multiple intracranial aneurysms. Methods: Axial source images were obtained by helical CT scanning and reconstruction of 3D-CTA images was done by volume rendering technique in conjunction with multiplanar reformation. Results: In the past one year,there were 10 patients diagnosed as having multiple intracranial aneurysms by 3D-CTA and altogether 24 aneurysms were visualized,including 10 small aneurysms(≤5mm.Three dimensional CT angiography with volume rendering demonstrated aneurysms very well and provided useful information concerning the site,shape,size and spatial relationship with the surrounding vessels and bone anatomy. Conclusion: Three-dimensional CT angiography with volume rendering is a quick,reliable,and relatively noninvasive method for diagnosing multiple intracranial aneurysms.It delineates detailed aneurysmal morphology,and provides useful information for planning microsurgical approaches.

Objective To establish a new method for measuring the 3-D kinematics of hindfoot joints in vivo by using reverse engineering software together with the theory of rigid body kinematics.Methods CT images were gathered from 9 feet of 5 healthy volunteers in both the initial position (neutral position) and the terminal position (extremely inversion-adduction-dorsiflexion position).The 3-D digital modules of hindfoot joints in the initial position and terminal position were established with MIMICS 10.01 software.The data of reconstructed digital modules was inputted into the GEOMAGIC 10.0 software in STL format for twice registration,and then their relatively displacement and changes of angle in 3-D space between the two positions were calculated Results The rotation range of the tibiotalar joint was 3.89° ±2.77° in eversion,5.29°±4.47° in abduction,10.77°+5.70° in dorsiflexion,and the relative displacement was 0.78±0.59 mm towards lateral ankle,0.18±0.75 mm towards the hindfoot,(0.65±0.71) mm towards the proximal limbs;the range of subtalar joint was 16.46°±2.94° in inversion,12.77°±1.81° in adduction,6.33°±4.32° in plantarflexion,and the relative displacement was 5.50±1.45 mm towards medial ankle,1.96±1.77 mm towards forefoot,0.43±1.18 mm towards distal limbs; the range of talonavicular joint was 38.82°±5.98° in inversion,19.71°±6.33° in adduction,5.09°±6.89° in plantarflexion,and the relative displacement was (9.77±1.73) mm towards medial ankle,3.13±1.29 mm towards hindfoot,4.64±1.42 mm towards proximal limbs.Conclusion This method measuring 3-D kinematics of hindfoot joints in vivo is non-invasive and easy to operate.

Objective To observe the effects of infrasound(IS)of different frequencies and intensities on the pathological morphology of the gastric mucosa(GM)in rats.Methods One hundred and forty male Sprague- Dawley rats were randomly and evenly divided into a control group(group A),an 8 Hz 90 dB group(group B),an 8 Hz 130 dB group(group C)and a 16 Hz 130 dB group(group D).IS with these frequencies and intensities was administered daily for 2 h to all groups except group A,which received sham infrasound.The other 70 rats were ran- domly and evenly divided into a second control group(group E)and an exposure group(group F),in which the rats were continuously stimulated by IS at 8 Hz and 130 dB for 2 h a day for 14 d.The pathological morphology of the GM in each group was observed at 1 d,7 d,14 d,21 d and 28 d after IS exposure.Results①Compared with group A,GM lesion scores were significantly increased in groups B,C and D at 1 d,7 d,14 d,21 d and 28 d(P＜0.01),but not in group B at 1 d.②Compared with group B,the GM lesion scores in group C were obviously in- creased at 1 d,7 d,14 d,21 d and 28 d,while scores were also obviously improved in group C in comparison with those in group D at 14 d,21 d and 28 d(P＜0.01).③The GM lesion scores in group F decreased gradually after IS,but were still higher than those in group E at 1 d,7 d,14 d,21 d and 28 d after IS.④The ultrastructures of the chondrosome and endocytoplasmic reticulum in GM cells were deformed after 8 Hz and 16 Hz IS.Conclusion 8 Hz 90 dB,8 Hz 130 dB and 16 Hz 130 dB IS can all result in GM damage in rats.The injury severity was closely related to the frequency,intensity and duration of the IS.Rats can adapt to IS after several exposures,and the damage tends to recover automatically.

Objective To prospectively assess the predictive power of centralization phenomenon in the curative effect of automated PLD.Methods The survey population was consisted of 109 patients with inclusion heraiation demonstrated by CT/MRI,74 men and 35 women with average age of 43.1 years(17～75 years). All were complained of low back pain,with varying degrees of lower extremity pain and altered sensation, lasting for more than 2 months;including one symptomatic disc in 99 patients and two symptomatic discs in 10 patients.Patients were undergone dynamic mechanical spinal test and reported whether the test would aggravate their pain.The assessment included forward flexion,extension,rotation of the trunk to the right and left, rotation to the left with fight extension,rotation to the fight with left extension,and whether straight leg raising in the supine position would aggravate back pain or leg pain.Symptom resposes were categorized into three groups:centralization group(CG),partial-centralization group(PCG)and noncentralization group(NCG). Centralization of pain is the progressive retreat of the most distal extent of the referred or radicular pain toward or to the lumbar midline.Noncentralization of pain is the peripheralization of pain in one or more directions, and no change in the distal-most pain location or intensity.All patients received a single therapy with PLD. Results A follow-up of 109 patients for 3 to 6 months,including 46 cases with 24 as exellent and 22 as good reaching 100% of excellent good rate in CG by MacNab standards;43 cases with 5 as exellent,29 as good,9 as fair and poor,with total effective rate of 79.1% in PCG.Twenty cases of NCG symptoms showed no improvement and therefore surgery was considered.Conclusions Centralization phenomenon occurrence during initial mechanical evaluation is a very accurate predictor for successful PLD outcome.Nonoccurrence of centralization would accurately predict poor PLD outcome and thus helpful as early predictor of the need for surgical treatment.

Objective To study the effects of infrasound of different frequencies and intensities on the levels of somatostatin(SS)and cholecystokinin(CCK)in rat duodenal mucosa.Methods A total of 140 male Sprague- Dawley rats were randomly divided into a control group,an 8 Hz-90 dB group,a 8 Hz-130 dB group and a 16 Hz- 130 dB group.The experimental groups were exposed to infrasound of 8 Hz-90 dB,8 Hz-130 dB or 16 Hz-130 dB,re- spectively,for 2 hours a day,and the control group was put under sham infrasonic exposure.After being exposed for 1, 7,14,21 and 28 days,7 rats were randomly selected from each group and underwent SS and CCK levels detection in duodenal mucosa by microarray radioimmunity method.Results Compared with the control group,the SS and CCK levels of duodenal mucosa did not change significantly after exposure for 1 day.The SS and CCK levels of duodenal mu- cosa significantly increased in 8 Hz-90 dB group,8 Hz-130 dB group and 16 Hz-130 dB group after exposure for 7,14, 21 and 28 days(P