Based on the data resources of National Information Management System of Public Health Emergency Report,we analyzed the distribution,characteristics,trend and influencing factors of public health emergency in Sichuan Province in 2005,and put forward the following countermeasures: improving system and mechanism,intensifying information report,carrying out surveillance and prediction,strengthening communication of different departments,widely propagandizing and educating,and increasing fund input.

An experimental model of asthma was established with ovalbumin sensitization in guinea-pigs and then the preventive effects of ketotifen on the terbutaline-induced down regulation of beta-adrenoceptors in lymphocytes were investigated with radioligand binding assay.It was found that terbutaline significantly reduced the density of beta-adrenoceptors in lymphocytes,ketotifen administered simultaneously with terbutaline prevented the density of beta-adrenoceptors in lymphocytes from reducing.and neither ketotifen nor terbutaline changed the Kd values in either group.These findings suggest that ketotifen is of value to provent asthmatic patients from the adverse effects of tschyphylactic therapy of beta-adrenoceptor stimulants.

0.05 ), while the age when the weight gain reached 2 000 g was (41?27) days, there was significant differences among the groups ( F=4.52,P

Adolescent ; Adult ; Cause of Death ; Child ; Female ; Hematologic Neoplasms ; mortality ; surgery ; Hematopoietic Stem Cell Transplantation ; mortality ; Humans ; Male ; Middle Aged ; Tissue Donors ; Young Adult

Bronchi ; cytology ; Cell Culture Techniques ; Cells, Cultured ; Humans ; Myocytes, Smooth Muscle ; cytology

Objective To summarize the types and imaging features of periosteal anomaly in osteosarcoma.Further to seek the feature of genesis and advancement of periosteal anomaly and its clinical significance.Methods One hundred and twenty-eight patients with osteosarcoma were enrolled in this study,which consisted of 76 males and 52 females aging from 5 to 66 years old with an average of 19 years.Both x-ray plain film and MR images were obtained in all patients.and DWI were done in 23 patients.CT scanning was conducted in 48 patients.which included post-contrast scanning done in 36.The pathological gross specimen,macrosection and point-to-point microsection were obtained in each of 14 cases to correlate the imaging findings of periosteal anomaly to the pathological outcome.Results The imaging and pathological finding:(1)Periosteodema,occurring in 96 patients.The sign was merely demonstratable on MR image and presented as loosened periosteal structure with no tumoral infiltration pathologically.(2)Periosteal lift and thickening,demonstratable on both CT and MR image,including 13 noted on CT and 42 on MR image.Pathologically,non-tumoral infiltration was noted in the thickened periosteum.(3)Periosteal destruction,occurring in 48 patients.Periosteal destruction was merely demonstratable on MR image and presented as localized or generalized tumoral infiltration of the periosteum.(4)Linear periosteal neo-bone formation,demonstrated in 42 cases on plain films,13 cases on CT and 22 on MR images,respectively.The linear periosteal neo-bone formation was pathologically regularly arranged periosteal neo-bone.(5)Laminar periosteal neo-bone fomarion,demonstrated in 21 cases on plain films,6 cases on CT and 21 on MR images,respectively.Pathologically,it appeared as multi-layer arrangement.(6)Radiated and spiculate periosteal neo-bone formation,demonstrated in 13 cases on plain films,7 cases on CT and 14 on MR images,respectively.On both plain film and CT,the closer to the center of the tumor,the longer and denser the spicule was.The interspiculate structure was tumoral tissue pathologically.(7)Periosteal neo-bone formation of mixed type,demonstrated in 7 cases on plain films,4 cases on CT and 8 on MR images,respectively.It was composed of 2 types or more of periosteal neo-bone.Conclusions (1)Multiform periosteal anomaly can be induced by osteosarcoma,and difierent periosteal anomaly possesses different imaging findings and different pathological basis.(2)The pathologically-based classification of periosteal anomaly generalizes the 3-modality imaging findings of various periosteal pathological alterations.(3)MR imaging enables to demonstrate periosteal anomaly more early,and periosteodema and periosteal destruction without neo-bone formation can only be demonstrated by MR imaging.MR imaging is more sensitive than CT in displaying periosteal thickening.

Objective To investigate the clinical application value of three-dimensional ultrasonic inspection in prenatal diagnosis.Methods 90 cases of fetal formations were Tetrospecthely analysed,which were diagnosed by two-dimensionul associtated with three-dimensional ultrasonic inspection.We compared the ultrasonic inspection with the clinical diagnosis.Results The all coincidence rate was 100%by combining the two measures,three-dimensional ultrasonic inspection can make up the defect of two-dimemional ultrasonic inspection.Conclusion Two-dimensional combined with three-dimensional ultrasonic inspection can accurately diagnose fetal formations,and increase the detection rate.

AIM: To explore the possibility that the transcription factor GATA family member is involved in the regulation of Tie2 gene expression in the tumor necrosis factor-?(TNF-?) mediated inflammatory response.METHODS: The mRNA expression of GATA family members GATA2 and GATA3 was determined in primary human aortic endothelial cells(HAECs) and primary human pulmonary artery endothelial cells(HPAECs) before and after TNF-? treatment by real-time quantitative PCR.The activation of Tie2 gene promoter by GATA transcription factor was detected by luciferase assay.The electrophoretic mobility shift assays(EMSAs) and supershift assay were performed for verifying whether Tie2 gene expression was activated by the binding of GATA factors to Tie2 promoter.RESULTS: TNF-? increased the expression of GATA2 in HAECs and HPAECs.The highly expressed GATA2 was bound to the sequence(T/A) GATA(A/G) of Tie2 promoter,activated Tie2 gene promoter and up-regulated Tie2 gene expression.CONCLUSION: GATA transcription factor family member GATA2 up-regulates the expression of Tie2 gene in TNF-? mediated inflammatory response.

Objective To investigate the clinical value of modified BI?RADS classification by using the coronal plane of automatic breast volume scaner. Methods The total of 201 BI?RADS 3~5 classification of breast masses were retrospectively analyzed. All masses underwent conventional ultrasound and ABVS examination. Using BI? RADS classification standard terms to describe various information of breast masses, and record the coronal image of the masses on the complete interface echo, convergence sign, angle, burr, which classified BI?RADS ultimately. Results The coronal plane of convergence sign, complete interface echo, angulation and burr were significantly different between benign and malignant tumors (P<0.0001). The sensitivity of ABVS convergent sign in diagnosing breast malignant tumors was 68.2%, specificity was 93.4% and accuracy was 82%. The conventional ultrasound combined with the coronal feature of ABVS modified by BI?RADS classification showed that 3 kinds of malignant rate reduced from 8.5%to 3.2%. The rate of malignant 4a decreased from 25.2%to 12.1%and the rate of malignant 5 increased from 94.2% to 98%. Conclusion The convergence sign of ABVS can be used as a significant independent predictor of breast malignant tumors;ultrasound combined with ABVS is helpful to improve the accuracy of ultrasound BI?RADS classification.