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As an important biological resource of a country or region, human genetic resources (HGR) are increasingly attracting attention and concern from many countries internationally, and even have been elevated to the dimension of national sovereignty by many countries. As a large country with rich and diverse HGR, relevant regulatory work in China started relatively late compared to foreign countries, but has developed rapidly. However, looking around the world, there is still room for further improvement and development of domestic HGR regulation. By reviewing the regulatory legislation of HGR in some countries abroad, this paper sorted out their advanced experience and highlighted measures in detail, and summarized their deep-seated legislative guidance. A detailed analysis and evaluation were conducted from seven aspects:the advanced level of HGR legislation and the enhancement of legal effectiveness, the systematization and systematization of policies and regulations, the unification of platforms and relevant standards, the highlight of the concept of ethics and the rule of law, the strengthening of anti-discrimination protection, the special protection of major human genetic family resources and national special protection areas of HGR, and the establishment of principled consensus or agreement on HGR in international and local regions, to provide reference for the construction of regulatory policies and legal systems for HGR in China.
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Objective:This study aimed to evaluate the accuracy of a portable REF-XT01 uric acid meter in measuring blood uric acid concentration, and to determine whether the results of the uric acid meter could be used to guide the adjustment of uric acid-lowering drugs.Methods:1 551 subjects were enrolled from the Gout Clinical Medical Center of the Affiliated Hospital of Qingdao University. The fasting venous blood was collected and the serum uric acid was measured by an automatic biochemical analyzer. Meanwhile, the capillary blood uric acid was measured by fingertip puncture using the REF-XT01 uric acid meter. Linear regression, intra-group correlation coefficient(ICC), and Bland-Altman plots were used to analyze the uric acid concentration correlation between the biochemical analyzer(sUA BA)and the uric acid meter(sUA UM). The receiver operating characteristic curve(ROC curve)was conducted to evaluate whether sUA UM can be used as a reference for the gout patients to take uric acid-lowering drugs. Results:The regression analysis showed correlation between sUA BA and sUA UM, with the regression formula Y=0.875X+ 39.525( r=0.84, P<0.01)and the ICC was 0.829(95% CI 0.814-0.844, P<0.01). The Bland-Altman diagram showed a good consistence(the absolute deviation was-143.4-114.5 μmol/L, mean deviation was -14.4 μmol/L)between sUA BA and sUA UM. The sensitivity was 96.61%, specificity was 48.81%, and the area under the ROC curve(AUC)was 0.926( P<0.01)when 300 μmol/L was defined as the detection threshold of the uric acid meter, the sensitivity was 90.98%, specificity was 66.78%, and the area under the ROC curve(AUC)was 0.914( P<0.01)when 360 μmol/L was defined as the detection threshold of the uric acid meter. Conclusion:REF-XT01 uric acid meter is applicable for the adjustment of uric acid-lowering drugs for the gout patients, because of its high accuracy for the detection of uric acid.
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Objective To evaluate feasibility and time efficiency of dual-source flash post-processing software (Bone Reading)for reconstruction of bronchial artery.Methods The imaging data of 70 patients with suspected bronchial artery dilatation who underwent bronchial artery-CTA were evaluated by 2 independent radiologists.First,the related contents of bronchial artery such as origination,number, type,route and lumen diameter were evaluated by multiple planar reconstruction (MPR),maximum intensity projection (MIP)and volume rendering technique (VRT).The results and process time were recorded.After a month,the post-processing software(Bone Reading)was used to evaluate the same contents.Results There was very good correlation between both readers for both reading methods without significant differences.There was significant difference of process time between with regular method and with Bone Reading (P<0.05)for both readers.Process time could be decreased by approximately 35%.Conclusion The application of CT software (Bone Reading)is feasible in the CTA of bronchial artery.This method may gain a significant time saving in comparison to regular method.
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Objective To compare the accuracy, image quality and radiation dose between prospective ECG?gated sequential and high?pitch acquisition on 128?slice dual?source CT (DSCT) angiography in infants and children with congenital heart disease (CHD). Methods Ninety?two children with CHD from October 2011 to February 2013 were prospectively enrolled and assigned into two groups according to random number table. Forty?six patients underwent DSCT angiography with sequential mode, and the other 46 patients were examined with high?pitch mode. With surgical and/or DSA results as the standard, the diagnostic accuracy and sensitivity of the two groups for the intracardiac structures, extracadiac and coronary artery anomalies were evaluated, and the comparison was analyzed by Fisher exact test. A 5?grade scoring system was used to interpret the image quality of intracardiac structures, great vessels and the proximal and middle segments of coronary arteries. Interobserver agreement on grades of image quality was assessed by Kappa statistics. The image quality scores were compared using the Mann?Whitney U test. The Student t test or the Mann?Whitney U test was used to analyze the differences between the two groups regarding to patients' age, weight , heat rate, CT attenuation, image noise and SNR in the ascending aorta and the pulmonary trunk as well as radiation dose. Results All 92 patients successfully underwent DSCT angiography. The diagnostic accuracies of intracardiac anomalies by high?pitch group and sequential group were 95.65%(88/92) and 99.28%(274/276), showed significant difference between the two groups (P0.05) .There was no significant difference in the diagnostic accuracy and sensitivity of extracadiac anomalies between the two groups (P>0.05). The diagnostic accuracies of coronary artery anomalies by high?pitch group and sequential group were 93.48%(43/46) and 100.00%(46/46), showed no significant difference between the two groups (P>0.05), but there was significant difference in the sensitivity of coronary artery anomalies (50.00%(3/6) , 100.00% (11/11)) (P0.05). The median image quality scores of intracardiac structures and proximal and middle segments of coronary arteries respectively by high?pitch group were 4.00 and 3.00, and 5.00 and 4.00 respectively by sequential group. The image quality of intracardiac structures (U=594.500, P<0.05) and proximal and middle segments of coronary arteries (U=397.500, P<0.05) was significantly better in the sequential group than that in the high?pitch group. There was no significant difference between the two groups in CT attenuation, noise and SNR of the ascending aorta and pulmonary trunk. The mean effective doses of the high?pitch group and the sequential group were(0.27±0.11)and(0.39±0.17)mSv, and showed significant difference between the two groups (t=4.316, P<0.05). Conclusions Both sequential and high?pitch mode of 128?slice DSCT angiography provide high accuracy for the assessment of CHD in infants and children, while the high?pitch mode, though with some image quality declined, shows further significantly lower radiation dose.
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Objective To explore the clinical value of prospective electrocardiography-triggering high-pitch spiral acquisition by dual-source CT (HP mode ) in children with congenital heart diseases (CHD).MethodsThirty-six patients ( mean age:0.67 years,range:1 month to 2 years and 6 months; 25 males;mean weight:7.7 kg)underwent prospective ECG-triggering high-pitch spiral acquisition.The dose length product (DLP) was recorded to calculate effective dose ( ED ).Two experienced radiologists made diagnosis and assessed the overall image quality by a five-point scale independently.The consistency of their judgment was determined by Kappa statistics.Surgeries were performed in 29 patients,and conventional cardiac angiography(CCA) was performed in 7 patients.The accuracy,sensitivity and specificity of HP mode were calculated based on the surgical or CCA findings.ResultsThe DLP was (5.12 ± 1.64) mGy.cm with a range of 2.4 mGy · cm to 9.2 mGy · cm and ED was (0.125 ± 0.027 ) mSv ranging from 0.078 mSv to 0.179 mSv.The average subjective image quality score was 4.2 ± 0.7.All images were diagnosable.Two radiologists made good agreement ( K =0.774,P ＜ 0.05 ).The accuracy,sensitivity and specificity of HP mode were 98.9％,94.2％ and 99.8％,respectively.ConclusionLow radiation dose with the accurate diagnosis of anomalies makes HP mode a new choice for children with CHD.
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ObjectiveTo investigate the value of prospective ECG-gated dual-source CT (DSCT)in the diagnosis of coarctation of aorta ( CoA ).MethodsSixteen patients clinically suspected of CoA underwent prospective ECG-gated DSCT angiography and color Doppler flow imaging (CDFI). The diagnostic accuracy of DSCT and CDFI were compared according to the results of operation or DSA.The nonparametric chi-square test was used for the statistics.ResultsSixteen patients were diagnosed as CoA by DSCT,4 were complicated with artial septal defect (ASD),9 with ventricular septal defect (VSD),1 with transposition of the great arteries,3 with dysplasia of aortic arch,7 with patent ductus arteriosus (PDA),1 with abnormal origin of the coronary artery, 1 with bronchus artery dilation. Fifteen patients were diagnosed as CoA by CDFI,1 was diagnosed as interruption of aortic arch. Four were complicated with ASD,9 with VSD,2 with bicuspid aortic valve (BAV),1 with transposition of the great arteries,2 with dysplasia of aortic arch,7 with PDA,1 with bronchus artery dilation.Abnormal origin of the coronary artery was not found.The diagnostic accuracy of DSCT and CDFI were 97.2％ ( 140/144)and 97.9％ (141/144)respectively,there was no significant difference (x2 =0.00,P ＞ 0.05 ).The sensitivity of DSCT and CDFI were both 93.2％ ( 41/44 ),the specificity were 99.0％ (99/100) and 100.0％ (100/100).The mean effective radiation dose was 0.42 mSv. Conclusion Prospective ECG-gated DSCT is a good imaging technique for the diagnosis of aortic coarctation in children.
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Objective To explore the application of low-dose prospective ECG-triggering dualsource CT (DSCT) angiography in infants and children with Kawasaki disease (KD).MethodsNineteen children diagnosed of Kawasaki disease underwent low-dose prospective ECG- triggering DSCT angiography (DSCTA) with free breathing and transthoracic echocardiogram (TTE).The overall imaging quality was graded on a five-point scale. Interobserver agreement in subjective image quality grading was assessed by Kappa statistics.The location,number and size of the aneurysms and dilations were recorded and compared with those of TTE.Pearson correlation analysis was used to evaluate the agreement on measurements between DSCTA and TTE.The average effective dose of DSCTA in all 19 children was calculated.ResultsDSCTA was performed successfully in all 19 children.A total of 91.5 ％ (226/247) segments permitted visualization with diagnostic image quality. Fifteen patients were diagnosed with coronary artery lesions. A total of 28 aneurysms and 15 arterial aneurysmal dilations were detected by DSCTA,while 19 aneurysms and 13 arterial aneurysmal dilations were found by TTE.TTE failed to detect 9 aneurysms (2 in the distal right coronary artery,2 in the posterior descending artery,1 in the middle of left anterior descending artery,1 in the middle of left circumflex artery,2 in the distal of LCX and 1 in the obtuse marginal branch)and 2 arterial aneurysmal dilations (1 at the diagonal branch and 1 at obtuse marginal branch). The concordance of DSCTA and TTE in measurement of diameter and length of these aneurysms and aneurysmal dilatations are good (0.63 ± 0.20) and (0.58 ± 0.20) cm vs ( 1.49 ± 0.83 ) and ( 1.22 ± 0.66) cm ( r =0.989 and 0.965,P ＜ 0.05 ).There was a good agreement on overall image quality ( Kappa =0.87 ). The mean effective dose was(0.24 ± 0.08) mSv.ConclusionProspective ECG-triggering DSCTA with very low effective radiation dose is safe,reliable and more sensitive than TTE on diagnosing of coronary artery lesions,especially in the distal lesions,in infants and children with KD.
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Objective To evaluate the palliative effect of 89 SrCl on multiple metastatic bone-pain of malignant turnouts.Methods The palliative effect and side effect of 126 patients with metastatic bone-pain of malignant turnouts after intravenous injeotion 89SrCl were observed.Results The bone-pain vanished or released in 109 patients after therapy.The total effective rate was 86.5%.Bone scan showed that metastatic focals in 38 patients grew down and vanished.The counts of leucocyte was decreased mildly in 19 patients.The damage of liver and kidney was not observed after therapy.Conclusion The 89 SrCl has obvious effect on treating patients with metastatic bone-pain and osteolytic of carcinoma,the aide-effect is mild and it can be used repeatedly.
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Objective To investigate correlation between aspirin resistance(AR) and inflammatory factors. Methods One hundred and ten patients with coronary heart disease took aspirin 0.1 mg/d for 14 days.It was detected platelet aggregation function induced with adenosine disphosphate (ADP) and arachidonic acid (AA), and investigated correlation between AR and inflammatory factors. Interleukin-1? (IL-1?),interleukin-6 (IL-6) and high sensitive C-reaction protein (hs-CRP) levels. Results IL-6 level of patients with AR was significantly higher than that of aspirin sensitive (AS) patients. The other two index were not different between the two groups. Conclusion IL-6 levels could be used as predictor.
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OBJECTIVE:To compare the inhibition effect of Compound danshen tablets on platelet activation and that of Danshen tablets in patients with coronary atherosclerosis.METHODS:90 patients with coronary atherosclerosis were randomized into compound danshen tablet group,danshen tablet group and control group with treatment course of 2 months.30 cases were included into normal group.Radioimmunoassay and realtime RT-PCR were applied to detect mRNA expression of PTGIS,cAMP,TXA2 and PGI2 in plasma respectively and compared with control group.RESULTS:As compared with normal group,the mRNA expression of cAMP,PGI2,PTGIS were decreased markedly while expression of TXA2 was increased remarkably.In compound danshen tablets group and danshen tablets group the mRNA expression of cAMP,PGI2 and PTGIS were increased while the expression of TXA2 was decreased.The increase and decrease of mRNA expression in compound danshen tablets group was higher than that in danshen tablet group.CONCLUSION:Both of Compound danshen tablets and Danshen tablets could inhibit platelet activation and prevent acute coronary syndrome.The effect of Compound danshen tablets on inhibiting platelet activation is better than that of Danshen tablets.
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Objective To explore the clinical significance of FPSA/PSA ratio in the differential diagnosis of prostate carcinoma(Pca) and benign prostate hyperplasia (BPH). Methods The concentrations of FPSA and PSA in 52 patients with Pca or BPH were analysed retrospectively to calculate FPSA/PSA ratio. Results FPSA/PSA ratio between the Pca and BPH was markedly different (t=4 01,P