1.Association between leukemia and genes detected using biomedical text mining tools
Xiang ZHU ; Yunqiu ZHANG ; Jia FENG
Chinese Journal of Medical Library and Information Science 2015;24(10):28-32
Five genes that are closely related with leukemia were detected and identified using COREMINE Medi-cal, and the abstracts of related papers covered in PubMed were analyzed with the biomedical text mining tool, Chilibot, which showed that leukemia interacts with the 5 genes detected using COREMINE Medical.
4.Clinical study on doxofylline injection in treatment of children with acute asthma attacks.
Jia-xiang ZHANG ; Hui-quan LIN ; Jin-shan CHEN
Chinese Journal of Pediatrics 2004;42(2):143-144
Acute Disease
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Asthma
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drug therapy
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Bronchodilator Agents
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administration & dosage
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adverse effects
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therapeutic use
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Child
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Child, Preschool
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Female
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Humans
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Infant
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Infusions, Intravenous
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Male
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Theophylline
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administration & dosage
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adverse effects
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analogs & derivatives
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therapeutic use
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Treatment Outcome
5.Feasibility of using blood oxygen level-dependent MRI to diagnose chronic hepatitis b induced early kidney injury:a preliminary study
Xiang WANG ; Huiru JIA ; Huanhuan WU ; Rui ZHANG ; Haoran SUN
Chinese Journal of Radiology 2016;50(9):677-681
Objective To explore the feasibility of blood oxygen level-dependent (BOLD) MRI to detect the chronic hepatitis b-induced early kidney injury. Methods Seventeen clinically diagnosed chronic hepatitis b patients with early kidney injury and 10 healthy volunteers were enrolled in this preliminary study. The 17 patients underwent dynamic nuclear renography and then subdivided into stage 1 kidney injury group (n=7) and stage 2 kidney injury group (n=10). All of the enrolled subjects underwent BOLD examination and T2* relaxation rates (R2*) of renal cortex and medulla of split kidney, and the ratio between them (R2*med/cor) were measured separately. One-way analysis of variance (ANOVA) were performed on the control group and chronic hepatitis b patients group (kidney injury stage 1 and stage 2 group) to compare the difference of renal cortical and medullary R2*values and R2*med/cor ratio. ROC curves were used to evaluate the efficacy of renal cortical and medullary R2* values and R2*med/cor ratio to diagnose the chronic hepatitis b-induced kidney injury. Results The cortical R2*values of control group, stage 1 kidney injury group and stage 2 kidney injury group were(16.87 ± 0.74)/s,(17.88 ± 0.73)/s,(20.29 ± 2.87)/s, respectively;the medullar R2*values of control group, stage 1 kidney injury group and stage 2 kidney injury group were (28.07±1.03)/s,(31.14±2.49)/s,(32.81±3.28)/s, respectively;R2*med/cor of the of control group, stage 1 kidney injury group and stage 2 kidney injury group were 1.67 ± 0.09, 1.75 ± 0.16, 1.63 ± 0.13, respectively, and the differences among the three groups were statistically significant (F values were 17.779, 19.170 and 3.439 , all P<0.05). Furthermore, the renal cortical and medullary R2* values of chronic hepatitis b patients were significantly higher than the control group, and the the renal cortical R2* value of the patients in stage 2 kidney injury group was also higher than the stage 1 kidney injury group. The area under curve (AUC) of ROC of the renal cortical and medullary R2*values and R2*med/cor to diagnose chronic HBV hepatitis-induced early kidney injury were 0.903, 0.949 and 0.526, respectively. Conclusion It's feasible and has great value to use renal BOLD MRI for the diagnosis of chronic hepatitis b-induced early kidney injury, and the renal cortex is more sensitive than the medulla to the kidney injury.
6.Correlation of vascular endothelial growth factor and aquaporin 1 with angiogenesis in rheumatoid arthritis
Jia LU ; Chuan XIANG ; Xiaochun WEI ; Xiaoqin ZHANG ; Xiaoli LIU
Chinese Journal of Rheumatology 2012;16(3):200-202
ObjectiveTo study the expression of vascular endothelial growth factor (VEGF) and aquaporin 1 (AQP1) in the synovium of rheumatoid arthritis (RA) patients,and their correlation with angiogenesis.MethodsThe expression of VEGF and AQP1 in the synovial tissue was detected with immunohistoehemistry in 7 patients with RA,12 patients with osteoarthritis (OA).The expression of VEGF and AQP1 positive cells and vessels was scored,and the correlation of positive cells with vessels was analyzed.Rank-sum test and Spearman's correlation analysis were used for statistical analysis.ResultsThe expression of VEGF positive cells was significantly correlated with vessels in the synovium of RA group(rs=0.971,P<0.01 ).No significant correlation was found between VEGF positive cells and vessels in synovium of the OA group (rs=0.235,P=0.462).There was no evident difference in the expression of VEGF positive cells between RA and OA group (Z=-0.390,P=0.711 ).The expressions of AQP1 positive cells were significantly correlated with vessels in the synovium of RA group (rs=0.828,P=0.022).No significant correlation was found between AQP1 positive cells and vessels in the synovium of OA group (rs=0.396,P=0.203).There was no notable difference in the expression of AQP1 positive cells between RA and OA group (Z=-0.302,P=0.773).The expressions of VEGF positive cells were significantly correlated with AQP1 positive cells in RA group (rs=0.891,P=0.007).No significant correlation was found between VEGF positive cells and AQP1 positive cells in OA group (rs=0.338,P=0.283).ConclusionThe expressions of VEGF and AQP1 are significantly correlated with angiogenesis in the synovium of RA,and they play an important role in the pathology of RA.Moreover,there may be synergistic effect between VEGF and AQP1 in RA.
7.Bone graft fusion fixation for single-segment thoracic/lumbar spinal tuberculosis:effective reconstruction of spinal stabilization and deformity correction
Tao CHEN ; Shiqing JIA ; Changsheng LIU ; Yingjing LAI ; Xiang ZHANG
Chinese Journal of Tissue Engineering Research 2015;(44):7120-7124
BACKGROUND:On the basis of thorough debridement, homochronous anterior or staging posterior fixation has been a standard scheme for spinal tuberculosis. Numerous studies confirmed that above approach has obtained good effects, but the anterior approach has some disadvantages, such as complex anatomic structure, great trauma, relatively more complications, and difficult operation and fixator implantation. OBJECTIVE:To observe spinal stabilization and deformity correction in patients with single-segment thoracic/lumbar spinal tuberculosis after posterior debridement and interbody fusion. METHODS:Clinical data of 36 patients with single-segment thoracic/lumbar spinal tuberculosis undergoing one-stage posterior debridement and interbody fusion in the Guangxi Yulin Orthopedics Hospital of Integrated Traditional Chinese and Western Medicine from January 2008 to January 2012 were retrospectively analyzed. There were 2 cases in single T11/12 segment, 4 in T12/L1 segments, 6 in L3/4 segments, 22 in L4/5segments and 2 in L5/S1 segments. Of them, 24 patients suffered from different degrees of spinal nerve injury. At 6, 12 and 24 months after surgery, al patients were folowed up. Bone graft fusion, kyphosis correction, functional recovery of the spinal cord and complications were observed. RESULTS AND CONCLUSION:Al patients were folowed up for 24-38 months. Cobb angle of kyphosis and spinal stenosis rate were significantly improved at 2 years after treatment (P < 0.05). The lumbar back pain symptoms were significantly improved in final folow-up (P < 0.05), with an intervertebral fusion rate of 100%. No lesion residue and recurrence, correction loss, fixation loosening or displacement was found. These results demonstrated that in patients with single-segment thoracic/lumbar spinal tuberculosis, posterior debridement and interbody fusion can effectively reconstruct spinal stabilization, correct deformity, and promote the functional recovery of spinal nerves.
8.Aesthetic restoration of full ceramic veneer by slip casting
Zaixi DENG ; Jun JIA ; Chunbao ZHANG ; Xiang SUN
Journal of Practical Stomatology 2009;25(4):595-597
Full ceramic prosthesis is becoming the main prosthetic development direction. As an important kind of full ceramic prosthesis, full ceramic veneer has not only natural cosmetic appearance and perfect biocompatibility, but also can preserve tooth structure as much as possible, which would be more easily accepted by patients for cosmetic prosthesis. Many methods, such as slip casting, die casting and CAD/CAM technology are available to make full ceramic veneer. All the methods have their own advantages and disadvantages. Slip casting is easy to be developed widely with low cost, so be used in practical work. In this article, the working process of full ceramic veneer, especially manufacture of removable dies, duplication of refractory models, were introduced, which was supposed to be beneficial for the technicians.
9.Relationship between paraquat tissue content and organ injury in paraquat poisoning rats.
Bo ZHAO ; Xiang-dong JIA ; Zhong-chen ZHANG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2010;28(3):220-223
Animals
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Brain
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pathology
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Hydroxyproline
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metabolism
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Kidney
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pathology
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Liver
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pathology
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Lung
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metabolism
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pathology
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Male
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Paraquat
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metabolism
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poisoning
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Rats
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Rats, Wistar
10.Pattern of lymph node metastasis in patieats with squamous cell carcinoma of the thoracic esophagus and its significance in lymphadenectomy
He-Cheng LI ; Ya-Wei ZHANG ; Jia-Qing XIANG ;
Chinese Journal of Thoracic and Cardiovascular Surgery 2003;0(04):-
Objective To explore the pattern of lymph node metastasis in patitsen with squamous cell carcinoma of the thoracic esophagus and its significance in lymphadenectomy.Methods The clinical data of 230 patients who received radical esophagectomy with three-field lymphadenectomy was analyzed.The metastatic sites of lymph nodes were correlated with tumor location by chi-square test.Logistic regression was used to analyze the relationship between clinic pathoingical factors and lymph node metastasis.Results Lymph node metastases were found in 133 of the 230 patients(57.8%).The average number of resected lymph nodes was 25.3? 11.4 per patient(range 11~71).The rates of lymph node metastasis were 41.6%,19.44%and 8.3%in the neck,thoracic medi- astinum and abdominal cavity for patients with upper thoracic esophageal carcinoma,33.3%,34.7%and 14%for patients with mid- die thoracic esophageal carcinoma and 36.4 %,34.1%and 43.2 %for patients with lower thoracic esophageal carcinoma.No signifi- cant difference in cervical or thoracic metastatic rate was observed among upper,middle and lower thoracic carcinoma.The difference in lymph node metastatic rate for nodes in the abdominal cavity was significant among upper,middle and lower thoracic carcinoma. The lower thoracic esophageal cancers were more likely to metastasize to the abdominal cavity.Logistic-regression showed depth of tu- mor invasion and angiolymphatic invasion were factors influencing lymph node metastasis.Conclusion Cervical and mediastinal node dissection should be performed independently from tumor location.Abdominal node dissection should be conducted more vigorously for lower thoracic esophageal cancer than of other locations.Patients with greater tumor grade,depth of tumor invasion and angiolymphatic invasion were more prone to develop lymph node metastasis.