5.Clinic analysis on colonic polyps of elderly people
Anhai CHEN ; Kui ZHAO ; Xuequang WEN ; Guoqing SHI
Chinese Journal of Geriatrics 2001;0(03):-
Objective This study was designed to understand the characteristics of colonic polyps in aged people, and the relationship between the colonic polyps and the malignant change. Methods A total of 158 patients with colonic polyps diagnosed by endoscopy were retrospectively analyzed during the recent years. Among them, 120 patients had been followed up by endoscopy for 1 to 6 years(average 4 5 years) and were compared with 437 young patients. Results The detective rate and the malignant change rate of colonic polyps in the aged people were 30% and 23 4%, respectively, being significantly higher than that of the young (10 2%) and the middle aged people(6 9%, P
6.Visualization Analysis of Telemedicine Researches Applying CiteSpace Ⅱ
Lili SHI ; Yalan CHEN ; Huiqun WU ; Kui JIANG ; Jiancheng DONG
Journal of Medical Informatics 2016;37(6):57-62
By using the software CiteSpace Ⅱ,the paper makes a quantitative analysis and interpretation of research literatures on telemedicine in SCIE of Web of Science from three perspectives,namely the research hotspots,knowledge base and research fronts.The research hotspots of telemedicine mainly include tele-diagnosis,tele-monitoring and evaluation of the application effects of telemedicine.It sets forth key literatures representing the knowledge base one by one and reveals that most of them focus on clinical applications.The analysis of burst terms indicates that more attention has been paid to tele-monitoring and distance education of chronic diseases in recent years and mobile technology is one of the greatest driving forces for the development of telemedicine at the present stage.
7.Lymphoma-like lesion of uterine cervix.
Jie MA ; Qun-li SHI ; Kui MENG ; Jie-yu CHEN ; Xiao-jun ZHOU
Chinese Journal of Pathology 2005;34(12):821-822
Adult
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Antigens, CD20
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metabolism
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CD3 Complex
;
metabolism
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Diagnosis, Differential
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Female
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Humans
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Hyperplasia
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immunology
;
pathology
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Ki-1 Antigen
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metabolism
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Lymphoma
;
immunology
;
pathology
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Lymphoma, B-Cell
;
immunology
;
pathology
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Uterine Cervical Neoplasms
;
immunology
;
pathology
8.Kinetics model of spherical immobilized cellulase.
Jian-Qin ZHOU ; Shi-Gong CHEN ; Zhong-Kui ZHU
Chinese Journal of Biotechnology 2005;21(5):799-803
A kinetics model was developed for predicting and simulating immobilized cellulase performance, which follows Michaelis-Menten kinetics with competitive product inhibition. Taking into account the effects of competitive product inhibition, inner diffusional limitation, substrate concentration and carrier size, the substrate distribution and the product distribution in carriers were investigated, and the effectiveness factors were also calculated over a wide range of parameters. The effects of competitive product inhibition are shown to increase the substrate concentration in the carrier, and, additionally, to increase the effectiveness factors slightly. With the increase of inner diffusion coefficient, both the effectiveness factors and the substrate concentration in the carrier increase. As the carrier size increases, on the other hand, these values decrease. The effectiveness factors and the substrate concentration in the carrier are found to increase when substrate concentration in the reaction system increases.
Cellulase
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metabolism
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Diffusion
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Enzymes, Immobilized
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metabolism
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Kinetics
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Microspheres
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Models, Chemical
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Particle Size
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Substrate Specificity
9.Diagnostic value of endobronchial ultrasound-guided transbronchial needle aspiration in elderly patients with bronchogenic carcinoma
Kui XIAO ; Jiehan JIANG ; Shulan XIA ; Naixin KANG ; Zhihui SHI ; Rui ZHOU ; Ping CHEN
Chinese Journal of Geriatrics 2014;33(9):958-960
Objective To evaluate the diagnostic value and safety of endobronchial ultrasoundguided transbronchial needle aspiration (EBUS-TBNA) in elderly patients with bronchogenic carcinoma.Methods From August,2013 and July,2014,31 patients aged 65 years and over with space-occupying mass and enlarged mediastinal lymph nodes detected by CT or positron emission tomography-computed tomography (PET-CT) underwent EBUS-TBNA.Rapid onsite cytology evaluation was not performed.Results There were 26 males and 5 females in this study,aged 65-77 years (70.1 years old on average).In 31 patients,70 samples were obtained from lymph nodes (LNs) and 4 samples were obtained from intrapulmonary lesions.29 cases were diagnosed as lung cancer,and 2 cases had false-negative diagnoses.The sensitivity and specificity rates of EBUS-guided TBNA method were 93.6% and 100.0%,respectively.No major complications were observed in this series.Conclusions EBUS-TBNA is an safe and effective method in diagnosing bronchogenic carcinoma in elderly patients.
10.Detection of activated cytotoxic cells in lymphoma by tissue microarray
Qunli SHI ; Qin CHEN ; Jun LI ; Kui MENG ; Henghui MA ; Xiaojun ZHOU
Medical Journal of Chinese People's Liberation Army 2005;30(12):1038-1042
Objective To detect the expression and distribution of activated cytotoxic cells in types of lymphoma with tissue microarray, and provide evidences for clinical treatment and prognosis. Methods Immunohistochemical staining by S-P technique was used to detect the expression and distribution of perforin and granzyme B in the lymphoma tissue microarray, composed of 60 cases of lymphoma tissue. Ten cases of NK/T-cell lymphoma routine sections were used for relative research, and ten cases of reactive hyperplasia were used for comparison. Results In the tissue microarray, originated from intranode and extranode were 48 cases and 12 cases, respectively; consisting of 42 cases of B-cell lymphoma, 16 cases of T-cell lymphoma, two cases of Hodgkin's disease. 42 cases of B-cell lymphoma cells were negative in perforin and granzyme B. In Ten cases of peripheral T-cell lymphoma, perforin and granzyme B positive were eight cases and nine cases, respectively, but the positive cells were no tumor cells. In 12 cases of NK/T-cell lymphoma (two in the tissue microarray, ten routine sections), both perforin and granzyme B were strongly positive. B-cell lymphoma, T-cell lymphoma and NK/T-cell lymphoma differed significantly (P<0.01). Conclusion Perforin and granzyme B were immunity markers for the identification of activated cytotoxic cells, which also could be used as diagnostic markers of NK/T-cell lymphoma. Their expression in B-cell lymphoma reflected the anti-tumor immunologic reaction of host. Tissue microarray technology has the behavior of high-throughput, convenient, effective, small experiment error, good replication and so on, and can be used as a useful tool for research of lymphoma.