Air Pollutants ; analysis ; Dust ; analysis ; Environment Design ; Environmental Monitoring ; instrumentation

Objective To investigate the CT diagnostic value and CT findings of fungal sinusitis.Methods CT findings of fungal sinusitis in 25 cases proved pathologically were retrospectively analysed.Results Heterogeneous density of sinusal cavity with small calcification appeared as spots or floccose(9 cases) and sand-like or patchy(16 cases) shadows,and local bone destruction.Conclusion The fungal sinusitis has characteristic findings on CT.CT is a valuable method for diagnosing the disease.

Objective To evaluate the value of 64-slice spiral computed tomography angiography(CTA) in diagnosis of acute severe chest pain caused by vascular diseases.Methods 34 cases with acute severe chest pain caused by vascular lesions confirmed clinically underwent CTA examinations.The images were processed with multi-planar reconstruction,maximal intensity projection,curved planar reconstruction and volume rendering,then the imaging features were analysed.Results CTA showed acute aortic dissection in 13 cases,acute pulmonary embolism in 9 cases and acute coronary syndrome in 12 cases,all cases were confirmed by clinic.Conclusion 64-slice CTA has very important practical value in diagnosis of acute severe chest pain.

Objective To analyze the MR features of atypical meningiomas,so that to improve the diagnostic accuracy of this tumor pre-surgery.Methods There were 12 cases of atypical meningiomas proved by surgery and pathology.All of these patients underwent plain and contrast-enhanced MR examinations.Results Totally 12 cases,included 2 cases of multiple meningiomas,2 cases of lateral ventriclar meningiomas,2 cases of completely calcific meningiomas,3 cases of cystic meningiomas and 3 cases of malignant meningiomas.Conclusion The external cerebral signs of the tumors are the important basis for the localizing diagnosis of atypical meningiomas.Atypical MR signs of meningiomas are of complimentary value in qualitative diagnosis.

Objective To evaluate the influence of up-regulation of glucose regulated protein 78 (GRP 78)induced by 2-deoxyglucose(2DG)on fetal rat cerebral neuron apoptosis following intrauterine distress and the unification of endoplasmic reticulum and mitochondrium.Methods (1) Fetal rat intrauterine distress model was established and rats were divided into normal group(n=10),ischemiareperfusion(IR) group( n = 40) and treatment group ( n = 40, injection of 2DG into pregnant rats' abdomen after operation ). (2) Neuron apoptosis and the influence of 2DG on apoptosis was detected by terminal deoxynucleotidyltransferase-mediated dUTP-biotin nick end labeling (TUNEL) staining. The expression of GRP78, caspase-9,-12,and cytoron C protein were detected by western blot technique. Results (1) The number of TUNEL positive neuron in normal group was 4. 3±1. 8 /mm2. The expression of GRP78,caspase-9,-12, cytoron C in cytoplasm were 0.012±0.003, 0.004±0.003, 0.006±0.002, 0.012±0. 005, respectively. (2) The number of TUNEL positive neuron in the IR group were 43.6±11.4/mm2( reperfusion 3 h), 64. 4±9. 3/mm2 (repeffusion 6 h), 74. 2±12. 1/mm2 ( repeffusion 12 h), 97. 3±8. 9 /mm2 (reperfusion 24 h), respectively. They were significantly more than that in normal group(P ＜0. 05).The expression of GRP78 at corresponding times in IR group were 0. 092±0. 008 ( reperfusion 3 h), 0. 078±0.006 (reperfusion 6 h), 0.054±0.009 (reperfusion 12 h), 0.038±0.007 (reperfusion 24 h),respectively. The expression of cytoren C in cytoplasm at corresponding times in IR group were 0. 040±0. 006 (repeffusion 3 h), 0. 076±0. 009 (reperfusion 6 h), 0. 108±0. 005 (reperfusion 12 h), 0. 089±0. 008 (reperfusion 24 h), respectively. The expression of caspase-9 at corresponding times in IR group were 0. 042±0. 003 ( reperfusion 3 h), 0. 086±0. 007 ( reperfusion 6 h ), 0. 142±0. 006 ( reperfusion 12 h), 0. 112±0. 009 ( reperfusion 24 h), respectively. The expression of caspase-12 at corresponding times in IR group were 0. 076±0. 006 (reperfusion 3 h), 0. 113±0. 010 (reperfusion 6 h), 0. 125±0. 005 (reperfusion 12 h), 0. 057±0. 008 (reperfusion 24 h), respectively. They were significantly higher than that in normal group(P＜0. 05). (3) The number of TUNEL positive neuron in the treatment group were 19.4±10. 6/mm2 ( reperfusion 3 h), 26. 4±12. 3/mm2 ( repeffusion 6 h), 39. 3±13.3/mm2 ( reperfusion 12 h), 49. 3±13. 6/mm2 (reperfusion 24 h), respectively. They were significantly lower than that in IR group, but more than that in normal group(P＜0. 05). The expression of GRP78 at corresponding times in the treatment group were 0. 158±0.012 (repeffusion 3 h), 0. 175±0. 005 (reperfusion 6 h), 0. 125±0. 013 (reperfusion 12 h), 0. 079±0. 004 (reperfusion 24 h), respectively. They were significantly higher than that in IR group and normal group (P＜0. 05 ). The expression of cytoron C in cytoplasm at corresponding times in IR group were 0. 026±0. 002 (reperfusion 3 h), 0. 042±0. 008 (repeffusion 6 h),0. 062±0. 007 ( reperfusion 12 h), 0. 045±0. 004 ( reperfusion 24 h), respectively. The expression of caspase-9 at corresponding times in IR group were 0. 033±0. 002 ( reperfusion 3 h), 0. 063±0. 005(reperfusion 6 h), 0. 092±0. 005 (reperfusion 12 h), 0. 068±0. 008 (reperfusion 24 h), respectively.The expression of caspase-12 at corresponding times in IR group were 0. 061±0. 004 ( reperfusion 3 h),0. 068±0. 009 ( reperfusion 6 h), 0. 072±0. 007 ( reperfusion 12 h), 0. 054±0. 005 ( repedusion 24 h),respectively. They were significantly lower than that in IR group, but higher than that in normal group(P＜0. 05). Conclusions Fetal rat cerebral neuron apoptosis following intrauterine distress is associated with the action of endoplasmic reticulum and mitochondrium. Up-regulation of GRP78 induced by 2DG counteracts primary cellular damage caused by endoplasmic reticulum stress. 2DG plays a protective role for fetal rat cerebral neuron following intrauterine distress.

Objective To explore the relationship between the classification and imageology,the dynamic changes of bronchoscopy and CT features of endobronchial tuberculosis(EBTB).Methods CT findings and bronchoscopic findings in 48 cases with EBTB proved by sputum culture , bronchoscopic biopsy and surgical pathology were analyzed.The classification,dynamic changes and CT characteristics were also evaluated.Results Bronchoscopic results showed 13 of edematous-hyperemic type, 8 of caseous nocrosis type, 5 of fibrostenotic type, 2 of tumorous type, 6 of granular type, 7 of ulcerative type and 7 of mixed type. CT manifestations in different types were intersected,including thickened bronchial wall (64.6%) , bronchial stenosis (41.7%) , aerated bronchus sign ( 37.5% ) ,intra-luminal nodules ( 25% ), bronchial structure with obstructive atelectasis ( 37.5% ) and pneumonia (25% ) .The corresponding rate between bronchoscopy and CT was 83.3% in detecting diseases.19 cases were followed-up by bronchoscopy during the initial 1~5 months of treatment,and 12 cases (3 edematous-hyperemic,4 caseation,3 ulcerative,2 mixed type) were resolved or healed without sequelae,6 cases changed into the other type,4 cases changed into the fibrostenotic type, 2 cases remained in a fibrostenotic state in spite of drug therapy.28 cases were followed-up by CT during the initial 1~5 months of treatment, and 20 cases (6 edematous-hyperemic,4 caseation,3 ulcerative, 1 granular,2 fibrostegnotic 1 tumorous,3 mixed type) were improved,6 cases changed into the other type,2 cases turned into the fibrostenotic type, 2 cases did not improve despite antituberculosis chemotherapy.CT correlated well with fibrobronchoscope(88.5%) in predicting the therapeutic outcome of EBTB.Conclusion CT as a non-invasive method has high clinical value in observing the evolution , predicting the complications and evaluating the therapeutic effect of EBTB.

Objective To report the surgical methods and results of pure laparoscopic radical cystectomy with orthotopic U-shape ileal neobladder.Methods From August 2010 to April 2014,19 patients with locally advanced bladder cancer (cT2-3 N0-2 M0) underwent pure laparoscopic radical cystectomy and Endo-GIA assisted orthotopic U-shape ileal neobladder reconstruction.Perioperative and follow-up data were collected.Results The surgeries were successful in all 19 cases with the operating time ranging from 261 to 380 min,blood loss of 100 to 350 ml.Postoperative hospital stay was 21±4 (15-26) days,postoperative intestinal function recovery time at 1.9±0.4 (1.5-2.3) days.Surgical margins were all negative.Lymph node positive rate was 32％ (6/19).Complications were including 1 case of lymphatic leakage; 3 cases of new bladder and urethra anastomotic fistula.There were 17 cases of urinary incontinence,all these cases were improved after 3 months,but there were still 8 cases of night-time incontinence.Three cases had unilateral ureteral reflux,ureter mild hydrocephalus,1 of the cases had recurrent infections within 1 month after surgery.After the anti-inflammatory and catheterization treatment,the symptoms were improved.Two cases had unilateral ureteral anastomotic stricture,one underwent percutaneous nephrostomy and cystoscope-assisted double J tube placement,another underwent laparoscopic ureteral neobladder reimplantation.One case had bilateral ureteral stenosis due to recurrent infections,and underwent bilateral laparoscopic ureteral-new bladder reimplantation.Patients were followed up for 8-42 months,no recurrence or distant metastasis was found.Conclusion Pure laparoscopic radical cystectomy with endo-GIA assisted orthotopic U-shape ileal neobladder can reduce surgical trauma and help patient's postoperative recovery.

Adamantinoma ; pathology ; Carcinoma, Mucoepidermoid ; diagnostic imaging ; drug therapy ; pathology ; surgery ; Diagnosis, Differential ; Humans ; Male ; Mandibular Neoplasms ; diagnostic imaging ; pathology ; surgery ; Middle Aged ; Tomography, X-Ray Computed

Objective To investigate the efficiency of biology function of ITIH4 gene silenced by small interfering RNA (siRNA) on ovarian cancer.Methods The four pairs ITIH4 gene siRNA interference fragments(ITIH4-546,ITIH4-795,ITIH4-917 and ITIH4-1568) were designed respectively,and transfected into HO8910pm cells with ITIH4 mRNA high expression by liposomal method transiently.Quantitative PCR method was used to detect the ITIH4 mRNA expression in HO8910pm cells transfected with interference fragment.The ITIH4 917 was selected as the best silencing effect of siRNA interference fragment and then the recombinant plasmid expression vector pGPU6/GFP/Neo-shRNA-ITIH4-917 was constructed and transfected into HO8910pm cells.The stably transfected cells-pGPU6/GFP/Neo-shRNA-ITIH4-917-HO8910pm cells was obtained by screening of aminoglycoside antibiotics (G418).The experiment was divided into three groups,namely ITIH4-917 transfection group,the HO8910pm cell group transfected with pGPU6/GFP/Neo-shRNA plasmid (empty vector group),and the HO8910pm cell group transfected with pGPU6/GFP/Neo-shRNA-ITIH4-NC the plasmid (negative control group).Fluorescence quantitative reverse transcription(RT)PCR and western blot were used to detect the ITIH4 mRNA and protein expression.The cell proliferation,the cell cycle,colony formation of cells,cells migration and invasion in vitro were determined by using methyl thiazolyl tetrazolium (MTT),flow cytometry,colony formation assay and transmembrane (transwell) small chamber method [value represented by absorbance (A)],respectively.Results The fluorescent quantitative PCR results showed that the ITIH4 mRNA expression levels in ITIH4-917 HO8910pm cells was significantly lower than that in the control cells,the relative copy number was only 0.26 ± 0.15.Also the relative copy number of ITIH4 mRNA in ITIH4-917 transfection group cells was 0.34 ±0.10,it significantly lower than that in empty vector group (1.87 ±0.12,P =0.008) and negative control group (1.58 ±0.21,P =0.032) ; Western blot results showed that the ITIH4 relative expression levels of the protein in ITIH4-917 HO8910pm group cells,empty vector group and negative control group were 0.51,1.64 and 1.74,respectively,there were statistically significant differences (0.51 vs.1.64,P =0.012; 0.51 vs.1.74,P =0.014).MTT colorimetric assay showed that the proliferation of ITIH4-917 HO8910pm group cells was significantly faster than that in the empty vector group and negative control group,and there were statistically significant differences among them (P =0.001).The S ± G2/M phase cell ratio in ITIH4-917 HO8910pm group cells was 54.2％,which was significantly higher than that in the empty vector group or negative control group (26.3％ and 31.3％,respectively,all P ＜ 0.05).The colony formation rate (55.7 ± O.7) ％ in ITIH4-917 HO8910pm group cells was also significantly higher than that in empty vector group (29.7 ±0.9) ％ (P =0.037) and negative control group (31.4 ± 0.3) ％ (P =0.043).Migration and invasion experiments showed that cell migration in ITIH4-917 HO8910pm group cells was 0.40 ± 0.18,whicht was significantly higher than that in the negative control group or empty vector (0.30 ±0.03,P =0.031 ;0.25 ±0.03,P =0.028,respectively).Although the invasive ability of ITIH4-917 HO8910pm group cells (1.31 ±0.34) was higher than that in the control cells (1.05 ±0.68) and empty vector group (1.14 ±0.08),while there were not significant difference (P ＞ 0.05).Conclusion It would be to promote the cell doubling time and increase the migration capability in HO8910pm cells that ITIH4 expression was down-regulating by ITIH4 mRNA interference.

50 years).The values of ADC,FA,?_1,?_2 and ?_3 in putamen and globus pallidus were calculated after diffusion tensor scanning,and then analyzed the differences between the two tissues.The differences of ADC,FA,?_1,?_2 and ?_3 values among age groups were analyzed by using analysis of variance(ANOVA),and their relationship with age were accessed by using Pearson correlation.Results Between the correspondent age groups,the ADC value was higher in the putamen[(6.68?0.40)?10~(-4),(6.47?0.36)?10~(-4),(6.44?0.34)?10~(-4)mm~2/s]than that in the golbus pallidus[(6.13?0.50)?10~(-4),(6.05?0.33?10~(-4),(6.05?0.52)?10~(-4)mm~2/s],and the value of FA in the putamen(0.20?0.03,0.23?0.03,0.25?0.03)was lower than that in the globus pallidus(0.35?0.03,0.36?0.03,0.37?0.04).ANOVA analysis of the FA value among age groups revealed there were significant differences in the putamen(F=10.082,P=0.000),and the same analysis of eigenvalue ?_3 in the putamen also showed significant differences(F=5.675,P=0.005).The FA value in the putamen was significantly elevated with aging(r=0.555,P