1.Value of γ-interferon release test in the diagnosis of entry-exit people with tuberculosis
Guoping YANG ; Minxia YE ; Qisheng YANG ; Zhujun YIN
International Journal of Laboratory Medicine 2017;38(1):27-28,31
Objective To investigate the clinical significance of γ-interferon release test (IGRA) in the diagnosis of entry-exit people with tuberculosis.Methods A total of 64 patients with tuberculosis and 46 healthy people were detected by IGRA,tuberculin skin test (TST),LAM,38× 103 and 16 × 103.The results of different methods were compared and analyzed.Results The sensitivity of IGRA detection method (88.9 %) and specificity (95.8 %) were both higher,while the sensitivity (92.7 %) of the TST method was higher and the specificity (76.7 %) was lower.Conclusion The sensitivity and specificity of IGRA in the detection of tuberculosis are higher,and it has important clinical application value.
2.Effect of Total Flavonoids of Hippophae Rhamnoides on Contractile Mechanics and Calcium Transfer in Stretched Myocyte
Zhengrong WANG ; Ling WANG ; Huahu YIN ; Fangju YANG ; Yunqin GAO ; Zhujun ZHANG
Space Medicine & Medical Engineering 2000;13(1):6-9
Objective To study the role of total flavonoids of hippophae rhamnoides in improving contactile function of stretched cardiac myocyte.Method Flavonoids were given to stretched myocytes which were proved their contractile function decline and then myocyte contractile mechanics characteristics and calcium transfer were measured.Result Flavonoids increased myocyte contractility,as indicated by myocyte shortening,velocity of shortening,peak+dL/dt and peak-dL/dt during shortening,in a concentration-dependent manner (r>0.9,P<0.001),and with no relation to the intracellular calcium transfer in the myocytes.Conclusion Flavonoids of the traditional Chinese drug hippophae rhamnoids is effective in improving the contractile function of stretched cardiac myocyte in low dosage.
3.Study on dosimetric changes between initial and second treatment plans in IMRT for large volume NSCLC
Jianxin REN ; Yong YIN ; Guanzhong GONG ; Xinsen YAO ; Zhujun HAN ; Ming SU ; Hong QUAN
Chinese Journal of Radiation Oncology 2020;29(10):872-876
Objective:To evaluate the cumulative dose of the target volume and organs at risk (OARs) in intensity-modulated radiation therapy (IMRT) for large volume non-small cell lung cancer (NSCLC) based on rigid and deformation registration methods. The dosimetric changes between the initial and second treatment plans were compared.Methods:Thirty patients treated with IMRT for large volume NSCLC with twice 4DCT scans acquired before radiotherapy and after 20 fractions of radiotherapy were recruited. The initial treatment plan (Plan 1) based on the average density projection CT (CT 1-avg) of the first 4DCT images and the second treatment plan (Plan 2) based on the average density projection CT (CT 2-avg) of the second 4DCT images were calculated. Then, the dose distributions of Plan 1 and Plan 2 were accumulated based on rigid and deformation registration methods to obtain Planrig and Plandef, respectively. Finally, the volume changes of gross tumor volume (GTV) and OARs between two CT scans were compared. The dose-volume parameters between Plan 1 and other plans (including Plan 2, Planrig and Plandef) were also statistically compared. Results:Compared with the initial CT scan, the mean volume of GTV and heart on the second CT was decreased by 44.2% and 5.5%, respectively, while the mean volume of ipsilateral lung, contralateral lung and total lung was increased by 5.2%, 6.2% and 5.8%, respectively (all P<0.05). Compared with Plan 1, the D 95%, D 98% and V 100% of target volume IGTV (GTV fusion of 10 4DCT phases) and PTV in Plan 2 did not significantly change (all P>0.05), and those in Planrig and Plandef were decreased (all P<0.05). The dose-volume parameters of spinal-cord, heart, ipsilateral lung and total lung in Plan 2, Planrig and Plandef were significantly lower than those in Plan 1(all P<0.05). Among them, the V 30Gy and D mean of heart were decreased by 27.3%, 16.5%, 15.3% and 15.2%, 6.6%, 5.6%, respectively. The V 20Gy and D mean of total lung were decreased by 15.6%, 4.5%, 3.7% and 15.7%, 6.2%, 5.1%, respectively. Some dose-volume parameters (including D 95% and D 98% of target volume, V 40Gy of heart, V 20Gy and D mean of the ipsilateral lung and the total lung) of Plandef were higher than those in Planrig (all P<0.05). The Dice similarity coefficients (DSCs) of OARs after deformation registration were significantly higher than those after rigid registration ( P<0.05). Conclusions:The dose-volume parameters of OARs significantly differ between Plan 1 and Plan 2. Hence, all these parameters have a large degree of deviation in predicting radiation-induced injury of OARs. Nevertheless, the dose-volume parameters obtained by deformation registration can enhance the prediction accuracy.
4.Quantitative analysis on the dynamic changes in heart beat cycle of radiomics characteristics in left ventricular myocardial CT
Ming SU ; Yong YIN ; Zhujun HAN ; Xiaoping QIU ; Qingtao QIU ; Guanzhong GONG
Chinese Journal of Radiological Medicine and Protection 2020;40(8):636-641
Objective:To provide a feasible method for the evaluation of cardiac function based on cardiac gated 4DCT, the radiomics technology combined with enhanced ECG gated 4DCT images were used to quantitatively analyze the changes of left ventricular CT radiomics characteristics in cardiac cycle.Methods:The enhanced ECG 4DCT images of 14 patients were reconstructed at intervals of 5% of cardiac cycle. The left ventricular muscle (LVM) and the contrast agent well filled area of left ventricular were delineated with a 13 mm diameter sphere (Cardiac Region of Interest, cardiac ROI) in a single phase. 3Dslicer software was used to extract 92 features of all the sketches, analyze the distribution of CT values on the cardiac ROI and LVM, and preliminarily screen the stable features based on the cardiac ROI (one-way ANOVA). The stable features were used to further screen LVM (one-way ANOVA) to get the difference features. Wilcoxon rank sum test was used to analyze the change of characteristics with heartbeat in the heartbeat cycle.Results:In the heartbeat cycle the mean CT values of cardiac cavity ROI in cardiac cavity changed less than that in LVM, with the change rates of 9.23% and 17.88%, respectively. There were 36 stable features with no significant difference in cardiac cavity ROI ( P>0.05). 20 of them were statistically significant ( F=1.641-6.206, P<0.05), and the average change rate was 98.63%, such as median (-103.96%) and mean (123.67%) of the first order matrix, gray level non uniformity (99.81%) of GLDM matrix and other changes reached more than 99%. The differences between the maximum and minimum values in different cardiac cycles were statistically significant ( Z=-3.921--3.173, P<0.05). Conclusions:With the combination of radiomics and enhanced ECG 4DCT image, the microscopic changes of CT image features in the cardiac cycle can be amplifed. A new method for the assessment of left ventricular function changes was provided. The features such as median, mean may have more application potential.
5.Mining and analysis of adverse drug event signals of lacosamide
Yueqin YIN ; Zhujun ZHOU ; Chengmin LI ; Ni XU ; Yuefen LOU
China Pharmacy 2024;35(10):1249-1253
OBJECTIVE To mine adverse drug event (ADE) signals of lacosamide, and to provide references for clinically safe drug use. METHODS ADE data for lacosamide reported to the United States FDA adverse event reporting system from January 1, 2009, to December 31, 2022, were collected. Data mining was conducted using the reporting odds ratio method and Bayesian confidence propagation neural network method. Classification statistics were performed using the system organ class (SOC) and preferred terms (PT) from ADE terminology set of Medical Dictionary for Regulatory Activities (Version 25.0). RESULTS A total of 21 360 lacosamide ADE reports were received, identifying 203 ADE signals across 24 SOCs, with 19 signals not included in the drug’s instruction. The top five PTs ranked by occurrence frequency were medication overdose, technical errors during device use, product use issues, intentional product misuse, and therapy discontinuation. The top five PTs ranked by signal strength were changes in seizure presentation type, congenital hypoplasia of depressor anguli oris muscle, multidrug resistance, brain surgery, and vagus nerve stimulator implantation. ADEs not recorded in the drug instruction included congenital hypoplasia of depressor anguli oris muscle, multidrug resistance, mitochondrial DNA mutation, dissociative identity disorder, and congenital auricular anomaly. CONCLUSIONS For lacosamide-induced ADEs that occur frequently and are already listed in the drug’s instructions, such as bradycardia and atrioventricular block, the clinical application should be careful and attentive, adjusting the dosage timely according to the patient’s condition to avoid severe ADEs. Newly discovered suspect ADEs, such as congenital hypoplasia of depressor anguli oris muscle, mitochondrial DNA mutation, overmature infant, dissociative identity disorder, pigmenturia, behavioral disorders, and dissociative disorders, should be vigilantly recognized to ensure the safety of drug use.
6. Acute meningitis and encephalitis syndrome surveillance disease burden in four China prefectures
Dan WU ; Yixing LI ; Zhujun SHAO ; Huanyu WANG ; Guijun NING ; Junhong LI ; Zundong YIN
Chinese Journal of Preventive Medicine 2019;53(2):164-168
Objectives:
To explore acute meningitis and encephalitis syndrome (AMES) surveillance in 4 China prefectures, to understand the epidemiological features and disease burden of
7. Guidelines for the use of post-traumatic tetanus vaccines and passive immune preparation
Chuanlin WANG ; Si LIU ; Zhujun SHAO ; Zundong YIN ; Qingjun CHEN ; Xiao MA ; Chao MA ; Qing WANG ; Linghang WANG ; Jigui DENG ; Yixing LI ; Zhixian ZHAO ; Dan WU ; Jiang WU ; Li ZHANG ; Kaihu YAO ; Yuan GAO ; Xu XIE
Chinese Journal of Preventive Medicine 2019;53(12):1212-1217
Post-traumatic tetanus is the main type of non-neonatal tetanus. To reduce the incidence and mortality rate of tetanus and guide the primary medical institutions to prevent and control tetanus after trauma, National Immunization Planning Technical Working Group of the Chinese Center for Disease Control and Prevention has compiled this document in the reference with Position Paper by World Health Organization, the latest research progress from home and abroad. The guidelines focus on the basic procedures for the prevention and disposition of post-traumatic tetanus, the application of tetanus vaccines and immune preparation, and the pre-exposure immunization in high-risk populations of trauma.
8.Pharmacological Effect of Phellodendri Chinensis Cortex and Active Components on Gout: A Review
Min LI ; Yunyun QUAN ; Ting WANG ; Li LI ; Jin ZENG ; Junning ZHAO ; Jiuzhou MAO ; Yangfan TANG ; Zhujun YIN
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(1):286-298
Gout is a metabolic disease closely associated with hyperuricemia and urate deposition. Because of the complex pathogenesis, high morbidity, multiple complications, and increasingly young patients, gout has received worldwide attention. Currently, western medicine mainly treats gout by lowering the uric acid level and reducing inflammation, which, however, causes serious adverse reactions and has contraindications. Phellodendri Chinensis Cortex (PCC) is the dried bark of Phellodendron chinense, with the effects of clearing heat, drying dampness, purging fire, detoxifying, and treating sores. Studies have shown that PCC and its active components have anti-inflammatory, pain-relieving, uric acid-lowering, and anti-gout activities, with extensive sources and high safety. PCC and its active components could prevent and treat gout through multi-targets and multi-pathways, whereas the systematic review remains to be carried out. Therefore, this paper summarized the pharmacological activities and mechanisms of PCC and its active components in the treatment of gout. The available studies have shown that PCC and its active components exert the anti-gout effect by lowering the uric acid level, reducing inflammation, alleviating oxidative stress, and regulationg intestinal flora, and protecting the kidneys. Particularly, the active components represented by alkaloids contribute obviously to the therapeutic effect of of PCC. Herein, we analyzed the problems and future development of the research on PCC, aiming to provide theoretical support and a scientific basis for the research and development of new drugs against gout.
9.Principles for the rational use of national key monitoring drugs (the second batch)
Yuan BIAN ; Min CHEN ; Shan DU ; Wenyuan LI ; Lizhu HAN ; Qinan YIN ; Xiaojiao CUI ; Xuefei HUANG ; Zhujun CHEN ; Yang LEI ; Yingying HOU ; Xiaoqing YI ; Yueyuan WANG ; Xi ZHENG ; Xinxia LIU ; Ziyan LYU ; Yue WU ; Lian LI ; Xingyue ZHENG ; Liuyun WU ; Junfeng YAN ; Rongsheng TONG
China Pharmacy 2023;34(20):2433-2453
In order to strengthen the supervision of the use of drugs in hospitals,the Sichuan Academy of Medical Sciences· Sichuan Provincial People’s Hospital took the lead in compiling the Principles for the Rational Use of National Key Monitoring Drugs (the Second Batch) with a number of experts from multiple medical units in accordance with the Second Batch of National Key Monitoring Rational Drug Use List (hereinafter referred to as “the List”) issued by the National Health Commission. According to the method of the WHO Guidelines Development Manual, the writing team used the Delphi method to unify expert opinions by reading and summarizing the domestic and foreign literature evidence of related drugs, and applied the evaluation, formulation and evaluation method of recommendation grading (GRADE) to evaluate the quality of evidence formed, focusing on more than 30 drugs in the List about the evaluation of off-label indications of drugs, key points of rational drug use and key points of pharmaceutical monitoring. It aims to promote the scientific standardization and effective management of clinical medication, further improve the quality of medical services, reduce the risk of adverse drug reactions and drug abuse, promote rational drug use, and improve public health.