Objective To assess the feasibility of low voltage with CARE dose 4D computed tomography pul-monary angiography(CTPA)by using image quality and radiation dosage.Methods 92 patients with clinically sus-pected pulmonary embolism(BMI:20 ~30kg/m2)were randomly divided into two groups(group A:n =46,80kV;groups B:n =46,100kV),the male and female of group A were equal to the number.Image quality score(given blind-ly by two senior radiologists ranged from 1 to 5 points).The CT value and standard deviation(SD)were measured and recorded in common pulmonary artery trunk,the main right pulmonary arteries,right low lobar arteries,and erector muscle of spine,calculated the SNR of ROI.Average CT value,signal noise ratio(SNR),CTDIvol,DLP were com-pared between the two groups.Used the CT dose index(CTDIvol)to compare radiation dosage between group A female and male.Results The agent average CT value and SD in arteries in group A [(510.27 ±115.45)HU,(50.06 ± 11.67)HU respectively]were higher than those in group B[(413.32 ±100.38)HU,(35.12 ±11.94)HU respective-ly],there were significant differences between the two groups(t =10.367,8.892,all P =0.000),but the SNR of ROI was (12.36 ±3.90),which was lower than (14.03 ±4.46)in group B,there was significant difference between the two groups(t =-5.238,P =0.001 ).Image quality score of transverse ection(1mm)in group A was (4.20 ± 0.29),which was lower than (4.91 ±0.36)in group B,there was significant difference(t =-20.23,P =0.000), but there was no significant difference in coronal section(5mm),coronal maximum intensity project(MIP)image and the capability of displaying the pulmonary artery branches(all P >0.05 ).The CTDIvol in group A was (2.03 ± 0.39)mGy,which was greatly lower than (5.04 ±1.02)mGy in group B,there was significant difference (P <0.05);but there was no significant difference between female and male in group A[male:(2.05 ±0.39)mGy;female:(2.01 ±0.38)mGy,t =-0.300,P >0.05].Conclusion Radiation dose can be decreased greatly(above 50%)in 80kV CTPA compared 100kV without compressing obviously the image quality for patients BMI 20 -30kg/m2 ,and no significant difference between the group A(80kV)different gender radiation dosage.

The paper is to systematically evaluate the efficacy and safety of Deng Zhan Xi Xin injection ( DZXXI) as an adjuvant treatment for patients with angina pectoris. The Cochrane Library, Medline, EMbase, CBM, CNKI, VIP, and Wan fang Data base were searched. Randomized controlled trials (RCTs) of DZXXI combined with western medicine routine treatment versus western medicine routine treatment alone for angina pectoris patients were all included. All trials were assessed according to the Cochrane Reviewer' s Handbook 5.1 for Systematic Reviews of Intervention and Meta analyses were performed by RevMan 5. 2 Software. A total of 30RCTs (3 086 patients including 1 572 patients of treatment group and 1 514 patients of control group) were included. Meta-analysis of treatment group compared with control group showed superior effect over reducing cardiovascular events ( OR = 0.33; 95% CI: [0.16, 0.67], P = 0.002, improving effective rate of DZXXI as adjuvant treatment for angina pectoris patients (OR = 3.97; 95% CI: [3.15, 5.02]; P < 0.000 010 and electrocardiogram curative effect (OR = 2.21; 95% CI; [1.83, 2.68]; P < 0.000 010. Funnel figure seemed that there was publication bias. The current limited evidence showed that when compared with the control group, treatment group was superior in improving patients with angina pectoris. But based on the limitations of the study, rigorous design with long follow up clinical trials are necessary for further evidence.
Adjuvants, Pharmaceutic ; Adult ; Aged ; Angina Pectoris ; drug therapy ; physiopathology ; Drugs, Chinese Herbal ; administration & dosage ; Electrocardiography ; Female ; Heart ; physiopathology ; Humans ; Injections ; Male ; Middle Aged ; Randomized Controlled Trials as Topic

This article brought forward the adverse vocational education model-organizing lower level of undergraduates to participate in the work of public health specialty. This model enhanced their understanding of this work and urged more students to devote themselves in this area. Besides, questionnaires were used to know how alumni performed and what was needed for a future professional of public health.

Objective To evaluate the advantage of single -source spectrum CT in differentiating of calcifi-cation and tophus.Methods 146 cases of clinical suspected patients with gout pain were scaned by single -source spectrum CT,observed the adjacent to the bone and joint hyperplasia and showing characteristics of gout stone,coun-ted quantity,size and position of the sedimentary tophus.Diagnosed by American rheumatism association standard as the gold standard,computed the sensitivity,specific degrees and accuracy of showing tophus of single -source spec-trum CT and conventional CT,and evaluated the advantage of differentiating adjacent to the bone and joint hyperplasia and gout stone of single -source spectrum CT.Results Diagnosis of gout in 105 cases.Scaned 349 joints,positive in 341 of them,The first plantar toe joint involvement was obvious[118,34.60%(118/341)];The result showed that the sensitivities of the tophus,specific and accurate rate of the conventional CT were 63.80%(67 /105),65.85%(27 /41),64.38%(94 /146),which of single -source spectrum CT were 96.19%(101 /105),87.80%(36 /41), 93.84%(137/146),the differences of sensitivity,specificity and accuracy between the two methods were statistical significance(χ2 =34.42,555,38.34,all P <0.05).Conclusion Single -source spectrum CT in gout stone adjacent to the bone and joint has higher sensitivity and accuracy,specific degree,it is higher than conventional CT and provide a new noninvasive imaging technique for the identification of the peripheral bone and joint of the bone.

To explore the effective components represented by fingerprint contributed to allelopathic effect of different Salvia miltiorrhiza aqueous concentration on seeds and seedlings of radish, grey relational analysis was used to establish the chromatography-efficacy relation. The results show that 15 peaks devote high allelopathic contribution to radish seeds and seedlings. The study will provide a new concept for allelochemicals screening and study.
Allelopathy ; Chromatography, High Pressure Liquid ; Pheromones ; analysis ; metabolism ; pharmacology ; Plant Extracts ; analysis ; metabolism ; pharmacology ; Raphanus ; drug effects ; growth & development ; Salvia miltiorrhiza ; chemistry ; metabolism

Objective:To investigate the expression and relationship of differentiated embryo-chondrocyte expressed gene1(DEC1) and the signal tranducers and activator of transcription3 (STAT3) in gastric cancer tissues,and the significance of the two genes in gastric carcinogenesis. Methods:Immunohistochemistry method of SP was adopted to discover the expression of DEC1 and STAT3 in 59 gastric cancer tissues,19 normal tissues distant from tumor were regarded as control. Results:The positive expression rate of DEC1 in gastric cancer tissues was 71.2%(42/59),which was significantly higher than that in normal para-cancer tissues(26.3%)(P0.05). STAT3 expression was associated with TNM staging,invasion depth,lymph node involvement and tumor grade (P0.05). Conclusions:DEC1 expression was higher in gastric cancer tissues than that in normal para-cancer tissues distant from tumor,and was correlated with STAT3 in gastric cancer. DEC1 and STAT3 are both transcription factors,therefore the co-activation of DEC1 and STAT3 may play an important role in the carcinogenesis and development of gastric cancer.

Objective:To investigate the effects of Qingluotongbi granule(QLT) on RANKL(receptor activator of nuclear factor-?B ligand) expression in peripheral blood T lymphocytes of RA patients.Methods:RANKL expression of peripheral blood T lymphocyts was examined using flow cytometry.Six cases of RA patients were enrolled with six healthy volunteers as the control.Meanwhile examination for the level of RANKL expression in T cells after incubation in presense of QLT-contained serum was observed.Results:RANKL expression of peripheral blood T lymphocytes was much higher in active state RA patients than in healthy people(P

Objective To evaluate the accuracy of the Helicobacter pylori stool antigen (HpSA) test for detection of Helicobacter pylori (Hp) infection before and after treatment in children.Methods stool specimens were collected from 62 consecutive patients (4-17 years) who received 13 C-urea breath test( 13C-UBT) and/or gastroscopy for gastrointestinal symptom and 31 patients after radical cure of Hp who received 13 C-UBT within 2 days.The evaluation of Hp status was defined as positive when 13 C-UBT were positive and gastroscopic biopsy were positive.Results The sensitivity of HpSA test for the diagnosis of Hp using a cutoff value of 0.121 was 92.30% and its specificity and accuracy was 91.30% and 91.94%,respectively.sensitivity was 83.33% and its specificity was 88.00% and accuracy was 87.10% after radical cure of Hp.Conclusions The precision ratio of HpSA test is higher to diagnose Hp infection before the radical cure in children.Sensitivity and specificity after the radical cure are lower than before.

Object To investigate the effect of total flavone in Sanguis Draconis (tFSD) on platelet aggregation, thrombus formation and myocardial ischemia in rat and rabbit. Methods Adopting the experimental models including in vitro platelet aggregation in rat and rabbit, in vivo thrombus formation in rat internal vein, and acute myocardial ischemia by ligating the coronary artery. Results In vitro, tFSD could, to a certain degree, inhibit the platelet aggregation induced by ADP and PAF. Moreover, tFSD could markedly restrain artificial thrombus formation in rat internal vein and the area of acute myocardial ischemia after ligating the coronary artery. Conclusion tFSD has the function of promoting blood circulation and removing blood stasis, anti thrombosis, together with platelet aggregation inhibition.

Objective To evaluate the relationship between sternum protection and bone marrow suppression in postoperative radiotherapy for esophageal carcinoma. Methods Total of 98 postoperative patients with thoracic esophageal carcinoma were randomly divided into experimental group (52 cases) and control group (46 cases). All patients were given intensity-modulated radiotherapy (IMRT), with the dose of 50-50.4 Gy. The patients in experimental group were irradiated by 6 fields (4-fields in front, 2-fields behind) which were crossed to avoid direct exposure to the sternum. The patients in control group were irradiated by 5 fields (3-fields in front, 2-fields behind) with front-middle of the field passing through the sternum. Concurrently all patients received 2 cycles of cisplatin chemotherapy. Results Dmean, V20 and V30 of the sternum in the experimental group were (20.21 ±3.60) Gy, (40.78 ±7.19) % and (33.78 ±9.44) %, which were lower than those in the control group [(30.91±5.21) Gy, (81.01±4.81) %, (51.60±6.84) %], respectively (P<0.05). However, the volume and dose distribution of lung, spinal cord and heart were similar between the two groups (P> 0.05). Both the incidence rates of bone marrow suppression at 14th day and 35th day after radiotherapy were significantly higher in the control group (52.2%, 73.9%) than those in the experimental group (28.8 %, 50.0 %) (P< 0.05), and the incidence rate of bone marrow suppression at 7th day after radiotherapy was similar between the two groups. Conclusion Protecting and sketching for sternum in postoperative radiotherapy for esophageal carcinoma can reduce the incidence of bone marrow suppression effectively, which would not increase the radiation dose in the lung, heart and spinal cord.