1.Investigation and Analysis on the Demand of Chinese Medicine Professionals in Vocational Colleges in Zhejiang Province
Bin CHENG ; Aizhen ZHOU ; Xiongzhi YANG
Chinese Journal of Information on Traditional Chinese Medicine 2014;(10):124-126
Objective To understand the demanding situation for professionals in Zhejiang Province;To improve the relevance of professional training and effectiveness of education. Methods Interviews and questionnaires were used for the six aspects of research:traditional Chinese medicine industry and its needs for professionals, the school-enterprise cooperative education and staff training needs, Chinese professional competence, medicine curriculum system, personnel positioning and analysis of knowledge, ability and quality requirements, and follow-up survey for graduates. This survey was opened to 12 pharmaceutical companies in 5 areas in Zhejiang Province, with a purpose to analyze the demands and requirements for Chinese medicine professionals in Zhejinag Province. Results and Conclusion The Chinese medicine market of Zhejiang Province demands for structured and diversified professionals in large quantities, especially for skilled professionals of high-quality of vocational level, which provides a good environment for Chinese medicine professional training.
2.Factors associated with onychomadesis in children: analysis of 120 cases
Yuanjun LI ; Jintao ZHANG ; Bing ZHU ; Jun LI ; Aizhen ZHOU ; Jinping CHEN
Chinese Journal of Dermatology 2013;46(8):583-585
Objective To analyse factors associated with onychomadesis in children,and to evaluate the relationship between onychomadesis and hand-foot-mouth disease (HMFD).Methods A retrospective study was performed.Clinical data were collected from 120 children with onychomadesis (average age,3.19 ± 2.06 years) and 120 sex-and age-matched patients with hemangioma.Viral detection was realized by real-time reverse transcriptionPCR in throat swab specimens.Data were analyzed by chi-square test using the SPSS 16.0 software.Results Of the 120 patients with onychomadesis,85 (70.83%) had a history of HMFD,which was 4 to 8 weeks prior to the occurrence of onychomadesis.Onychomadesis was strongly correlated with HMFD (OR,7.621,95% CI,4.292-13.531),but uncorrelated with the occurrence and peak of fever,abnormality of serum trace elements,existence of latent diseases,or the use of antipyretic drugs or antimicrobial drugs during the clinical course of HMFD (all P >0.05).Several viruses were detected in 39.7% of 68 throat swab specimens from patients with HMFD accompanied by onychomadesis,which included Coxsackievirus A16 in 9 patients,enterovirus 71 in 3 patients and unidentified enteroviruses in 15 patients.Conclusion Onychomadesis appears to be a complication of HMFD.
3.The appraisal in diagnosis of active pulmo-tuberculosis of rCFP-10/ESAT-6 fusion protein by ELISA
Zhihua ZHAN ; Yingyu CHEN ; Ye YUAN ; Jie XIANG ; Jinhai ZHOU ; Aizhen GUO
Chinese Journal of Microbiology and Immunology 2008;28(9):847-850
Objective To sensitize the T-cell in the peripheral blood of the active tuberculosis pa-tients by rCFP-10/ESAT-6 fusion protein, phytohaemaggiutinin(PHA) and physiologic saline, and to detect the IFN-γ to approach the significance of the tuberculosis infection. Methods One hundred and eleven pa-tients were diagnosed by clinical definite, 292 undergraduate students were chosen by X-ray and PPD-selec-fion as volunteers. 3.0 ml of blood was taken from each volunteer, rCFP-IO/ESAT-6, PHA and physiologic saline were added into each 1.0 ml, respectively. The A valule and antibody of IFN-γ were assayed by ELISA. Results Treated with rCFP-10/ESAT-6 group: the A value average of patients group was 1. 3885±0.6236, students group was 0.2944±0.0917. Intergroup t'=16.4259, P<0.05, set>0.42 as cut-off, the positive rate of patients group was 93.58%, students group was 13.07%. Treated with PHA group: the A value average of patients group was 1.2463±0.5541, of which the other was 0.5613±0.064, t'=19.1797,P<0.05. Treated with physiologic saline group:the A value average of patients group was 0.0772±0.0444,of which the other was 0.0290±0.0235,t'=13.9487,P<0.05. All had significant deviation. The antibody positive rate of the patients group was 66.36%, the students group was 7.19%. Conclusion rCFP-10/ESAT-6 as specific antigen, the sensitivity of IFN-γ release assay by ELISA is above 90%. No matter specific or non-specific disposal, the active tuberculosis patients have higher IFN-γ, release level and antibody than the control group.
4.Study on compatibility extraction technology of Rhei Radix et Rhizoma, Scutellariae Radix and Phellodendri Chinensis Cortex.
Aizhen ZHOU ; Hua YIN ; Zhiqing WANG
China Journal of Chinese Materia Medica 2012;37(4):461-465
OBJECTIVETo determine the optimum compatibility extraction technology of Rhei Radix et Rhizoma, Scutellariae Radix and Phellodendri Chinensis Cortex.
METHODThe drugs were combined respectively firstly, then use HPLC to determinate extraction rates of evaluating indicators including emodin, chrysophano, baicalin and berberine hydrochloride. Orthogonal experiment was used to detect the effect on concentration and volume of ethanol, times of extraction.
RESULTThe extraction rates of evaluating indicators were relatively high in combined extraction of Rhei Radix et Rhizoma with Scutellariae Radix and single extraction of Phellodendri Chinensis Cortex. The optimized combined extraction were 12 times more than the volume of 60% ethanol solution, by boiling for 3 times, each for 1.0 hour, and that of single extraction were 10 times more than the volume of 60% ethanol solution, by boiling for 3 times, each for 1.0 hour.
CONCLUSIONThe optimized compatibility extraction technology is reasonable, stable and practical.
Chemical Fractionation ; methods ; Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; analysis ; isolation & purification ; Ethanol ; chemistry ; Phellodendron ; chemistry ; Scutellaria baicalensis ; chemistry ; Time Factors
5.Low-dose CT perfusion imaging based on pre-scan regulation and on reconstruction with sparsity constraints.
Jijiang MO ; Aizhen ZHOU ; Cong WANG ; Yingjie MEI ; Yanqiu FENG
Journal of Biomedical Engineering 2012;29(1):12-17
The long-period CT perfusion imaging leads to an excess amount of radiation dose to the patient. However, the radiation dose could be significantly reduced if a previous normal-dose image is acquired before a set of low-dose scans of perfusion, and a filtering processing is performed on the differences between the current low-dose images and the previous normal-dose image, then the results are added to the previous image. But the selection of plenty of parameters makes the algorithm complicated. This paper proposes an innovative approach performed in sinogram domain instead of in image domain. First a normal-dose image and a set of low-dose projection data are acquired before the perfusion. Second the perfusion information is commendably reconstructed with sparsity constraints of the differences between current low-dose perfusion sinograms and previous low-dose sinogram. Finally, the reconstructed perfusion information is added to the previous normal-dose image. The proposed method was validated by simulated experiments with a set of brain CT perfusion images, which showed that the new method provided more accurate perfusion information; the time-attenuation curve was more close to that for normal-dose scan and the mean transit time more repeatable.
Algorithms
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Brain
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diagnostic imaging
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Humans
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Perfusion Imaging
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methods
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Radiation Dosage
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Radiation Injuries
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etiology
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prevention & control
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Radiographic Image Interpretation, Computer-Assisted
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Subtraction Technique
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Tomography, X-Ray Computed
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adverse effects
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methods
6.A new algorithm for affine motion compensation in PROPELLER MRI based on image domain.
Yanli SONG ; Yanqiu FENG ; Xiaowu LIU ; Aizhen ZHOU ; Cong WANG ; Wufan CHEN
Journal of Biomedical Engineering 2011;28(6):1194-1199
Affine motion is common during PROPELLER magnetic resonance imaging (MRI) in abdomen or other soft tissues. The current algorithm, up till now, for affine motion compensation is based on frequency domain, which compensates the motion in k space and then reconstruct the final image based on gridding method. But aliasing and some tiny artifacts may exist. This paper proposed a new algorithm for affine motion compensation based on image domain. Firstly, exact affine motion information was obtained through the image registration, secondly k space coordinate was corrected for compensating the k space strips sampling density, then the images obtained from inverse FFT was compensated using motion information, finally the final results were composited after rotation. The experimental results showed that the proposed method could more effectively suppress the motion artifacts compared to the current algorithm.
Abdomen
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pathology
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Algorithms
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Artifacts
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Fourier Analysis
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Humans
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Image Processing, Computer-Assisted
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methods
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Magnetic Resonance Imaging
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methods
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Movement
7.Preventive and therapeutic effects of compound ginkgo extract in rats with nonalcoholic steatohepatitis induced by high-fat, high-fructose diet
Qing YANG ; Hui ZHAO ; Aizhen ZHOU ; Zhaohuan LOU
Chinese Journal of Hepatology 2016;24(11):852-858
Objective To establish a rat model of nonalcoholic steatohepatitis (NASH),and to investigate the preventative and therapeutic effects of compound ginkgo extract against NASH.Methods A total of 60 male Sprague-Dawley rats were fed with high-fat feed and 10% fructose water for 24 weeks to establish the rat model of NASH.The general behaviors of the rats were observed,and the body weight was recorded.Blood samples from the inferior vena cava and the liver were collected after the last administration to measure serum total cholesterol (TC),triglyceride (TG),high-density lipoprotein cholesterol (HDL-C),and low-density lipoprotein cholesterol (LDL-C),as well as liver function parameters.The liver index was calculated,HE staining was performed to observe liver histopathological changes,and the total lipase activity and the levels of TC,TG,and free fatty acid (FFA) in liver tissue were measured.Results After 24 weeks,compared with the normal group,the model group had a significantly faster increase in body weight,significant increases in serum levels of TC (2.20±0.52 mmol/L),TG (0.87±0.22 mmol/L),LDL-C (1.22±0.50 mmol/L),alanine aminotransferase (ALT) (129.4±44.7 U/L),and aspartate aminotransferase (AST) (209.3±42.8 U/L),liver index (3.62%±0.28%),and the levels of TC (4.42±1.39 mmol/mg.prot),TG (0.85±0.11 mmol/mg.prot),and FFA (644.78±36.65 μmol/L) in liver tissue,and significant reductions in serum HDL-C level (0.58±0.11 mmol/L) and the activity of lipoprotein lipase (LPL) (9.95±1.64 U/mg.prot)and hepatic lipase (HL) (9.91±1.03 U/mg.prot) (all P < 0.01).In addition,the pathological results showed severe hepatocyte steatosis,varying degrees of inflammatory cell infiltration,exudation in the portal area,and necrosis of liver cells in the model group.After the intervention with compound ginkgo extract,there were significant reductions in serum levels ofTC (1.78±0.21 mmol/L),TG (0.58±0.07 mmol/L),LDL-C (0.84±0.19mmol/L),and ALT (84.1±17.1 U/L),AST (155.4±20.9 U/L),liver index (2.71 %±0.15%),and the levels of TC (2.24±1.02 mmol/mg.prot),TG (0.46±0.11 mmol/mg.prot),and FFA (580.56±50.63 μmol/L) in liver tissue,as well as significant increases in serum HDL-C level (0.68±0.10 mmol/L) and the activities of LPL (15.54±2.21U/mg.prot) and HL (11.92± 1.87 U/mg.prot) (P < 0.05 or P < 0.01).At the same time,it significantly reduced hepatomegaly in rats and improved fatty degeneration and degree of inflammation in liver cells.Conclusion Compound ginkgo extract can prevent and treat NASH by correcting dyslipidemia,improving liver function and fatty degeneration in hepatocytes,and reducing the degree of inflammation,and its mechanism of action may be associated with increasing total lipase activity,reducing FFA in the liver,increasing the decomposition of TG,and reducing the synthesis of TG.
8.Genetic diagnosis and analysis of related genes for a pedigree with 2p25 and 12p13 cryptic rearrangements.
Xiangdong TU ; Jian ZENG ; Xuewen CONG ; Aizhen YAN ; Yuxang LIN ; Xiao ZHANG ; Liping QIU ; You ZHOU ; Fenghua LAN
Chinese Journal of Medical Genetics 2014;31(4):444-448
OBJECTIVETo analyze chromosome aberration in a child with mental retardation and abnormalities and its parents.
METHODSChromosome G banding, multiplex ligation-dependent probe amplification, fluorescence in situ hybridization and single nucleotide polymorphisms array were employed for analysis.
RESULTSKaryotype analysis revealed that the child was 46,XX and the father was 46,XY, while the mother was 46,XX, add (12)(p13). Subtelomeric region analysis with MLPA displayed that the child has reduced ACP1 gene copy number in 2p25 region and increased SLC6A12,KDM5A gene copy numbers in 12p11 region. SNP-array has fine mapped the duplication to 12p13.33-p12.3, a 15.142 Mb region, and a deletion to 2p25.3 for 3.194 Mb, which resulted in duplication of 9 genes including SLC6A12 as well as deletion of 11 genes including SNTG2, respectively. FISH analysis revealed that the child was 46,XX,ish,der(2),t(2;12)(p25;p13)mat, or partial monosomy 2p25 and partial trisomy 12p13. In addition,the mother was a carrier with cryptic balanced translocation chromosome, 46,XX,isht(2;12) (p25;p13). Mental abnormalities and retardation of the child may be attributed to heterozygous deletion of SNTG2, MYT1L genes and duplication of SLC6A12 gene.
CONCLUSIONCombined use of MLPA, FISH and SNP-array can facilitate accurate diagnosis of cryptic rearrangement at genomic level.
Adolescent ; Adult ; Carrier Proteins ; genetics ; Child ; Child, Preschool ; Chromosome Banding ; Chromosome Deletion ; Chromosomes, Human, Pair 12 ; genetics ; Chromosomes, Human, Pair 2 ; genetics ; Female ; Gene Rearrangement ; Humans ; Intellectual Disability ; diagnosis ; genetics ; Male ; Pedigree ; Protein Tyrosine Phosphatases ; genetics ; Proto-Oncogene Proteins ; genetics ; Translocation, Genetic ; Trisomy ; Young Adult
9.Establishment of human IFN-gamma in vitro release assay and its application in tuberculosis diagnosis.
Yingyu CHEN ; Quantao DENG ; Zhihua ZHAN ; Aizhen GUO ; Jie XIANG ; Jun CHEN ; Jinhai ZHOU ; Qinzhi ZENG ; Wu WEI ; Qingwei TONG ; Yanjie CHAO ; Youji KUANG ; Huanchun CHEN
Chinese Journal of Biotechnology 2008;24(9):1653-1657
This study aimed to establish human IFN-gamma (hIFN-gamma) in vitro release assay and to apply it in diagnosis of human tuberculosis. Human IFN-gamma gene was cloned and expressed in Escherichia coli. The recombinant hIFN-gamma was purified and used as immunogen to immunize mice and rabbits respectively. Monoclonal and polyclonal antibodies were respectively developed and a sandwich ELISA was established. The heparized whole blood from 111 active tuberculosis patients and 292 clinical healthy controls were collected. The blood was stimulated with tuberculosis specific fused antigen ESAT-6/CFP-10 and the plasma was collected for IFN-gamma detection. The sensitivity for tuberculosis diagnosis was 95.5%, whereas the positive detection rate for the healthy controls was 16.7%. There was a significant difference between the patients and healthy controls (P<0.01) indicating that this assay had a high sensitivity and specificity, and thus could be promising in tuberculosis diagnosis.
Animals
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Antibodies, Monoclonal
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Enzyme-Linked Immunosorbent Assay
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Female
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Humans
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Interferon-gamma
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immunology
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secretion
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Mice
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Mice, Inbred BALB C
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Mycobacterium tuberculosis
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immunology
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Rabbits
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T-Lymphocytes
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immunology
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Tuberculosis
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diagnosis
;
immunology
10.Content Determination of 5 Components in Curcuma wenyujin and Optimization of Processing Method in Production Place
Aizhen ZHOU ; Zhenbei BAO ; Bin CHENG ; Xiaoqi ZHU
China Pharmacy 2019;30(3):381-386
OBJECTIVE: To establish the method for simultaneous determination of curdione, curcumenol, germacrone, furanodiene and β-elemene in Curcuma wenyujin, and to optimize its processing method in production place. METHODS: HPLC method was adopted. The determination was performed on ODS SP C18 column with mobile phase consisted of acetonitrile-0.05% phosphoric acid solution (gradient elution) at the flow rate of 1.0 mL/min. The detection wavelength was set at 214 nm, and column temperature was 30 ℃. The sample size was 10 μL. 18 batches of sample medicinal materials were prepared by steaming-drying (10, 20, 30, 40 min), or cooking-drying (drying temperature 50, 60, 70 ℃), and then the contents of 5 components were determined. Relative relational degree (ri) obtained by grey relational analysis method as indexes was used to optimize the processing methods of C. wenyujin in production place using. RESULTS: The linear range of curdione, curcumenol, germacrone, furanodiene and β-elemene were 25.56-409.0, 2.05-32.8, 6.36-102.0, 9.14-146.0, 8.62-138.0 μg/mL (r≥0.999 2), respectively. RSDs of precision, stability and reproducibility tests were all lower than 2.0% (n=6). Quantitative limits were 0.34, 0.62, 0.11, 0.14 and 1.20 μg/mL, and detection limits were 0.10, 0.19, 0.03, 0.04 and 0.42 μg/mL, respectively. The average recoveries were 101.3%, 98.7%, 99.0%, 99.6%, 96.4%, respectively (RSD<2.8%, n=6). The results of grey relational analysis showed that the relative relational degree (ri) from the processing technology of “boil for 10 min-drying at 50 ℃” was greatest, which had relatively small comprehensive effect on the contents of curdione, curcumenol, germacrone, furanodiene and β-elemene respectively. CONCLUSIONS: Established HPLC method can be used for content determination of 5 components in C. wenyujin. The results of optimization can provide reference for the selection of processing method of C. wenyujin in production place.