1.Establishment and practice of SCI papers management system
Yuanyuan KONG ; Yan CUI ; Jingping SU ; Xiaofei LYU ; Wei WEI ; Yun ZHANG ; Hufeng XU ; Hong YOU ; Youqing XIN
Chinese Journal of Hospital Administration 2015;(7):554-555
The quality of SCI papers is one of the objective indexes of evaluation on scientific and technological strength and research capabilities.This paper introduced a comprehensive management strategy to promote the publication of SCI papers with high impact factors,in terms of such dimensions ass research orientation,financial and technical support,personnel training,and scientific research management platform.The short and long term effects of the comprehensive management strategy system were analyzed using the SCI papers publication data and IF data from 201 1 to 2014 at the hospital,as a reference for building a scientific management system of SCI papers for the administrators.
2.Study on the morphology of influenza virus A by atomic force microscopy.
Yan-Fei LIU ; Kong-Xin HU ; Yi-Jiang HONG ; Yun-Qiu YANG ; Hua-Qian SUO ; Jing WANG
Chinese Journal of Virology 2008;24(2):106-110
The aim of the study is through observing the morphology of the prepared influenza virus (H1N1) with transmission electron microscopy (TEM) and atomic force microscopy (AFM) to explore the application of AFM on the research of the external character of viruses and provide a new, simple and efficient technique for the study of the viral morphology. TEM image was obtained by negatively stained influenza virus with 1% Phosphotungstic Acid; AFM image applied the tapping mode to influenza virus without any further treatment in air at room temperature, and the morphology parameters, including length (diameter), Ra and Rq are calculated by sectional analysis. The shapes of influenza virus A are spherical, filamentous or other pleomorphous particles observed by both AFM and TEM. TEM image of influenza virus A is two-dimensional image, and viral surface has visible spikes, while AFM exhibits the three-dimensional image that can be described with several quantifiable indexes through sectional analysis. AFM phase images show viral surface clearly which is characterized by rugged feature and gear-like protuberance. As compared with TEM, AFM is a new research tool for viral morphology study with the advantages of simple sample preparing, visible interface and is intuitionistic for researchers. The surface characteristic parameters of viruses provided by AFM can be served as the main quantifiable indexes for viral morphological study.
Influenza A Virus, H1N1 Subtype
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ultrastructure
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Microscopy, Atomic Force
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Microscopy, Electron, Transmission
3.A data-driven method for syndrome type identification and classification in traditional Chinese medicine.
Nevin Lianwen ZHANG ; Chen FU ; Teng Fei LIU ; Bao-Xin CHEN ; Kin Man POON ; Pei Xian CHEN ; Yun-Ling ZHANG
Journal of Integrative Medicine 2017;15(2):110-123
The efficacy of traditional Chinese medicine (TCM) treatments for Western medicine (WM) diseases relies heavily on the proper classification of patients into TCM syndrome types. The authors developed a data-driven method for solving the classification problem, where syndrome types were identified and quantified based on statistical patterns detected in unlabeled symptom survey data. The new method is a generalization of latent class analysis (LCA), which has been widely applied in WM research to solve a similar problem, i.e., to identify subtypes of a patient population in the absence of a gold standard. A well-known weakness of LCA is that it makes an unrealistically strong independence assumption. The authors relaxed the assumption by first detecting symptom co-occurrence patterns from survey data and used those statistical patterns instead of the symptoms as features for LCA. This new method consists of six steps: data collection, symptom co-occurrence pattern discovery, statistical pattern interpretation, syndrome identification, syndrome type identification and syndrome type classification. A software package called Lantern has been developed to support the application of the method. The method was illustrated using a data set on vascular mild cognitive impairment.
Data Collection
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Data Interpretation, Statistical
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Diagnosis, Differential
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Humans
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Medicine, Chinese Traditional
4.Comparison of migration characteristics of MSCs in different assay systems.
Xin-Jun WANG ; Jun-Ming TANG ; Xia KONG ; Ling-Yun GUO ; Jian-Ye YANG ; Fei ZHENG ; Long CHEN ; Yong-Zhang HUANG ; Jia-Ning WANG
Journal of Experimental Hematology 2009;17(2):404-407
The aim of this study was to explore the difference of MSC migration mediated by SDF-1/CXCR4 axis through Boyden chamber in vitro migration assay. The SDF-1 density-dependence of MSC migration was observed. Subsequently, the effects of different blocking agents on hSDF-MSC migration were observed after MSC were treated with 50 nmol/L wortmannin, 10 micromol/L LY294002, 50 micromol/L PD98059, 10 micromol/L U73122, 126 micromol/L AMD3100 and 50 nmol/L verapamil respectively. The results showed the efficiency of MSC migration increased gradually with the increasing of hSDF-1 density. And after MSCs treatment with 50 nmol/L wortmannin, 10 micromol/L LY294002, 50 micromol/L PD98059, 10 micromol/L U73122 and 126 micromol/L AMD3100 respectively, the ability of MSC migration decreased. The ability of MSCs migration obviously decreased when MSCs were treated with U73122, AMD3100. It is concluded that the SDF-1/CXCR4-mediated MSC migration may be related to mitogen-activated protein kinase (MAPK), phosphatidylinositol phospholipase C (PI-PLC) and protein kinase (PKC) signal pathways.
Animals
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Bone Marrow Cells
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cytology
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Cell Movement
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Flavonoids
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pharmacology
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Mesenchymal Stromal Cells
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cytology
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Protein Kinase C
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metabolism
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Rats
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Rats, Wistar
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Receptors, CXCR4
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metabolism
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Signal Transduction
5.Application of fluorescence in situ hybridization in prenatal diagnosis of complex chromosomal abnormalities.
Yan-yan SHEN ; Jian LI ; Hui KONG ; Hui-nan WU ; Qiong WU ; Yun-sheng GE ; Xin-li HUANG ; Yu-lin ZHOU
Chinese Journal of Medical Genetics 2009;26(5):529-532
OBJECTIVETo investigate the application of fluorescence in situ hybridization (FISH) technique in prenatal diagnosis of complex chromosomal abnormalities.
METHODSEleven prenatal diagnosis cases (8 from amniocentesis and 3 from cord blood) with complex chromosomal abnormalities detected by routine G-banding, were further analyzed by FISH.
RESULTSThe FISH technique confirmed the results of balanced chromosome rearrangements detected by G-banding, and clarified the structure of the derivative chromosomes in the 3 amniocentesis samples and the origin of the mark chromosomes in the 2 cord blood samples.
CONCLUSIONFISH can be used to diagnose the complex chromosomal abnormalities accurately in prenatal diagnosis, and can provide very useful genetic information for clinical diagnosis and treatment.
Amniotic Fluid ; chemistry ; Chromosome Aberrations ; Female ; Fetal Blood ; chemistry ; Humans ; In Situ Hybridization, Fluorescence ; methods ; Pregnancy ; genetics ; Prenatal Diagnosis ; methods
6.Effect of intrauterine growth retardation on insulin sensitivity and plasma adiponectin level in neonates.
Qun WANG ; Xu-Dong WANG ; Xin LIU ; Yun XIANG ; Han-Chu LIU ; Ling-Kong ZENG
Chinese Journal of Contemporary Pediatrics 2018;20(8):618-622
OBJECTIVETo explore the effect of intrauterine growth retardation (IUGR) on insulin sensitivity in neonates and the relationship between insulin sensitivity and plasma adiponectin level.
METHODSEighty-two term neonates with IUGR and 90 term neonates born appropriate for gestational age (AGA) were enrolled. Weight, height, head circumference and abdomen circumference of the neonates were measured within 24 hours after birth. Fasting serum glucose (FG), triglyceride (TG), high-density lipoprotein (HDL), low-density lipoprotein (LDL), plasma insulin and adiponectin were detected in two groups on the 7th day after birth. Homeostasis model assessment for insulin resistance (HOMA-IR) index and insulin sensitivity index (ISI) were calculated.
RESULTSThere were no significant differences in the levels of FG, TG, HDL and LDL between the IUGR and AGA groups (P>0.05). The plasma insulin level in the IUGR group was higher than that in the AGA group, but the plasma adiponectin level was lower than that in the AGA group (P<0.05). HOMA-IR index in the IUGR group was higher than that in the AGA group, but ISI was lower than that in the AGA group (P<0.05). Both Pearson correlation analysis and multiple linear regression analysis showed HOMA-IR index was negatively correlated with plasma adiponectin level and birth weight (P<0.05).
CONCLUSIONSThe neonates with IUGR display a higher plasma insulin level and decreased insulin sensitivity. The decreased plasma adiponectin level may be associated with the decreased insulin sensitivity.
7.Identification and classification of traditional Chinese medicine syndrome types among senior patients with vascular mild cognitive impairment using latent tree analysis.
Chen FU ; Nevin Lianwen ZHANG ; Bao-Xin CHEN ; Zhou Rong CHEN ; Xiang Lan JIN ; Rong-Juan GUO ; Zhi-Gang CHEN ; Yun-Ling ZHANG
Journal of Integrative Medicine 2017;15(3):186-200
OBJECTIVETo treat patients with vascular mild cognitive impairment (VMCI) using traditional Chinese medicine (TCM), it is necessary to classify the patients into TCM syndrome types and to apply different treatments to different types. In this paper, we investigate how to properly carry out the classification for patients with VMCI aged 50 or above using a novel data-driven method known as latent tree analysis (LTA).
METHODA cross-sectional survey on VMCI was carried out in several regions in Northern China between February 2008 and February 2012 which resulted in a data set that involves 803 patients and 93 symptoms. LTA was performed on the data to reveal symptom co-occurrence patterns, and the patients were partitioned into clusters in multiple ways based on the patterns. The patient clusters were matched up with syndrome types, and population statistics of the clusters are used to quantify the syndrome types and to establish classification rules.
RESULTSEight syndrome types are identified: Qi deficiency, Qi stagnation, Blood deficiency, Blood stasis, Phlegm-dampness, Fire-heat, Yang deficiency, and Yin deficiency. The prevalence and symptom occurrence characteristics of each syndrome type are determined. Quantitative classification rules are established for determining whether a patient belongs to each of the syndrome types.
CONCLUSIONA solution for the TCM syndrome classification problem for patients with VMCI and aged 50 or above is established based on the LTA of unlabeled symptom survey data. The results can be used as a reference in clinic practice to improve the quality of syndrome differentiation and to reduce diagnosis variances across physicians. They can also be used for patient selection in research projects aimed at finding biomarkers for the syndrome types and in randomized control trials aimed at determining the efficacy of TCM treatments of VMCI.
8.Research Progress on Cytometric Bead Assay for Platelet Antibody Detection.
Yun LING ; Xin KONG ; Bao-An CHEN
Journal of Experimental Hematology 2015;23(4):1208-1211
Anti-platelet specific antibody is one of the most important reasons leading to thrombocytopenia and megakaryocyte dysmaturity. The detection of platelet autoantibodies is an important step in the diagnosis of ITP because of the absence of specific clinic feature. The monoclonal antibody-specific immobilization of platelet antigens (MAIPA) has become a "gold standard" for determination of PLT specific antibody, which has high specificity and low sensitivity. However, this assay is time-consuming and tedious work. Routine use of this assay in hospital is difficult. Recently, some researches reporded the cytometric bead assay that has higher sensitivity than MAIPA, and so probably solves the problem of time-consuming partly, that also can use different beads for simultaneous detection. This review focuses on recent progress of the cytometric bead assay.
Antibodies
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Antibodies, Monoclonal
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Antigens, Human Platelet
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Blood Platelets
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Humans
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Megakaryocytes
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Thrombocytopenia
9.Identification of origins of marker chromosomes using fluorescence in situ hybridization.
Qiong WU ; Yu-lin ZHOU ; Hui KONG ; Huan ZENG ; Hui-nan WU ; Yan-yan SHENG ; Chao-yi YANG ; Yun-sheng GE ; Mei-jiao CAI ; Ting-ting HUANG ; Jia-yan CHEN ; Xia-olu CHEN ; Dong-xing ZHOU ; Xin-gli HUANG
Chinese Journal of Medical Genetics 2013;30(4):415-419
OBJECTIVETo assess the value of fluorescence in situ hybridization (FISH) and bacterial artificial chromosome FISH (BAC-FISH) for the diagnosis for patients with marker chromosomes.
METHODSSixteen patients with marker chromosomes were analyzed with technologies including GTG-banding, Q-banding, multiplex FISH and BAC-FISH.
RESULTSThe marker chromosomes in the 16 patients were verified as der(Y) (2 cases), psu dic(Y) (1 case), psu dic(15) (1 case), dic(15) (1 case), del(Y) (1 case), r(X) (5 cases), i(14 or 22) (2 cases), i(18) (1 case).
CONCLUSIONFISH and BAC-FISH can both verify the origin of marker chromosomes and provide accurate information for the diagnosis and treatment of patients.
Adolescent ; Adult ; Child ; Chromosome Aberrations ; Female ; Genetic Diseases, Inborn ; diagnosis ; genetics ; Genetic Markers ; genetics ; Humans ; In Situ Hybridization, Fluorescence ; methods ; Male ; Young Adult
10.Molecular and cytogenetic study on 18 cases of amenorrhea: the use of fluorescence in situ hybridization and high resolution-comparative genomic hybridization.
Hui KONG ; Yun-sheng GE ; Qiong WU ; Hui-nan WU ; Dong-xing ZHOU ; Yan-yan SHEN ; Yan-ling ZHENG ; Mei-jiao CAI ; Jian LI ; Xin-li HUANG
Chinese Journal of Medical Genetics 2007;24(3):256-260
OBJECTIVETo explore the use of fluorescence in situ hybridization (FISH) and high resolution-comparative genomic hybridization (HR-CGH) techniques in amenorrhea study.
METHODSAfter routine gynecologic examination, ultrasonography and endocrine examination, 17 cases of primary amenorrhea and 1 case of secondary amenorrhea were analysed by using chromosomal diagnoses including multiplex FISH and HR-CGH analyses.
RESULTSAmong 17 cases of primary amenorrhea, 7 revealed a 46,XX karyotype; 10 cases (58.8%) had abnormal karyotype, including 3 cases of 46,XY females, 2 cases of Turner's syndrome with 45,X and 45,X/46,XX, and other 5 cases with abnormal structure of X chromosome (including partial monosomy of X,X isochromosome and X/Y mosaic). The karyotype of the patient with secondary amenorrhea was translocation between X chromosome and euchromosome.
CONCLUSIONThe using of FISH and HR-CGH can correctly diagnose the patients' karyotypes, and provide absolutely necessarily medical genetic data for clinical diagnosis and therapy.
Adolescent ; Adult ; Amenorrhea ; diagnosis ; genetics ; pathology ; Chromosome Aberrations ; Chromosomes, Human ; genetics ; Comparative Genomic Hybridization ; Female ; Humans ; In Situ Hybridization, Fluorescence ; Karyotyping