1.Early clinical analysis of infants with cerebral palsy
Hanlin PENG ; Xiaobao SUN ; Wenwen HU
Chinese Journal of Primary Medicine and Pharmacy 2008;15(6):977-978
Objective To explore early clinical diagnosis of infant with cerebral palsy(CP). Methods Early diagnosis of cerebral palsy information abroad was referenced. DDST scale screening, newborn NBAS inspection stan-dards, VOJTA postural reflex and the nervous system reflective were used to evaluate the cerebral palsy. Results 90 cases CP of which 63 eases spastie. Xu mobile hand-foot-15 cases, 12 cases of mixed type. Conclusion Standardized,quantitative indicators,only workable and easy to use.
2.A Triple Level Registration Strategy of Medical Image Based on Mutual Information
Wenwen YI ; Faliang CHANG ; Yanlei HU
Space Medicine & Medical Engineering 2006;0(06):-
Objective To further solve the mutual restricted problems among precision, speed and disregistrated rate of registration algorithm based on mutual information (MI). Methods A new strategy on the search of registration parameters, a triple level registration strategy, was proposed. It searched the translation parameters and the rotation parameters respectively. Based on analyzing the advantage and limitation of MI-based registration, Euclid closeness of Fuzzy theory was introduced into the process of the triple level registration. Results The computer simulation results demonstrated that the proposed registration method, on the condition of retaining the same precision, improved both the speed (step numbers and registration time) and the disregistrated rate. Conclusion The proposed triple level registration strategy is a registration strategy to be able to harmonize precision, speed and disregistrated rate effectively.
3.Relationship between photoallergens and melasma
Zhiyu LIU ; Wenwen FU ; Yue HU ; Yu XU
Chinese Journal of Dermatology 2011;44(7):511-512
Objective To study the relationship between common photoallergens and melasma.Methods Twenty allergens were selected according to the National Diagnostic Criteria for Photosensitive Dermatitis induced by cosmetics,National Diagnostic Criteria for Contact Dermatitis induced by cosmetics and National Diagnostic Criteria for Occupational Skin Diseases.Based on the standard procedures for photopatch test recommended by the British Photodermatology Group (BPG),photopatch test was performed on 50 patients with melasma and 30 normal controls.Results The positivity rate of photopatch test was 48.0%(24/50)in patients suffering from melasma,significantly higher than in the controls[23.33%(7/30),P<0.05].Conclusion Patients with melasma appear more likely to have positive photopatch test than normal controls.
4.Study on technique of phase detection in magnetic induction tomography
Xiaoyan HU ; Mingxin QIN ; Mingke JIAO ; Wenwen LIANG ; Hua ZHANG
Chinese Medical Equipment Journal 1989;0(04):-
In the magnetic induction tomography(MIT) system,the electrical conductivity of biological tissue is direct proportion to the phase difference between the excitation signal and the detection signal.To obtain the image of the contribution of tissue's electrical conductivity,the system must have the function of phase detection with high accuracy.The paper focuses on the means of digital phase detection,including FFT method,the correlation method and the classic method,which are ultimately compared with analogue phase detection method.The experimental results show that FFT method and the correlation method,with low error level and high linearity,can better detect the phase difference with the level of 0.1?.The digital phase difference detection provides a kind of effective method for MIT system.
5.Influence of Celecoxib on Radiosensization of Irradiation ̄resistant Cell Line CNE ̄2R ofNasopharyngeal Carcinoma
Wenwen LI ; Wei SUN ; Min LUO ; Yu HUANG ; Linli ZHANG ; Guoqing HU
Herald of Medicine 2015;(11):1439-1444
Objective To investigate the effect of COX ̄2 inhibitor celecoxib on radiosensitity of irradiation ̄resistant cell line CNE ̄2R of nasopharyngeal carcinoma and the potential mechanism. Methods Via exposing to a series of X ̄ray (2, 4, 6, 8 Gy, 3 times for each dose), radio ̄resistant cell subline CNE ̄2R was established from human nasopharyngeal carcinoma cell CNE ̄2.Radiosensitivity was detected by clone formation assay.CNE ̄2R and CNE ̄2 cell lines were exposed to 25, 50, 75 μmol.L-1 celecoxib, respectively.Western blotting was used to detect the protein expression of COX ̄2.Clone formation assay was performed to measure the survival fraction of CNE ̄2 and CNE ̄2R after radiotherapy alone or radiotherapy combined with 30 μmol.L-1 celecoxib treatment.Flow cytometry was used to measure influence of radiotherapy alone or radiotherapy combined with 30 μmol.L ̄1celecoxib treatment on cell apoptosis.Number of residual γ ̄H2AX foci was observed by immunofluorescence assay. Results The colony forming assay demonstrated that the values of SF2, D0 , Dq , and N of CNE ̄2R cell subline [(0.81±0.05), (2.15±0.07) Gy, (2.94±0.08) Gy, (3.91±0.07), respectively] was significant higher than those of CNE ̄2 cell line [(0.61±0.08), (1.47±0.06) Gy, (1. 68 ± 0. 10) Gy, (3. 13 ± 0. 05), respectively]. The expression of COX ̄2 protein was significantly downregulated with increasing celecoxib concentration.Surviving fraction was decreased in both CNE ̄2 and CNE ̄2R cell lines after irradiation.After radiotherapy combined with celecoxib, apoptosis rates of CNE ̄2 and CNE ̄2R cell lines [(13.10±0.63)%, (5.30±0.75)%] were higher than those of the corresponding control groups [(4.90±0.71)%, (1.82±0.82)%].Celecoxib increased radiosensitivity in nasopharyngeal carcinoma CNE ̄2R and CNE ̄2 cell lines.The number of residual γ ̄H2AX foci after irradiation was increased by celecoxib pretreatment.The difference was statistically significant (P<0.05). Conclusion Celecoxib can enhance radiosensitivity of radio ̄resistant cell subline CNE ̄2R of human nasopharyngeal carcinoma in vitro.
6.DDA and BCG polysaccharide nucleic acid improved the immunogenicity and protective efficacy of tuberculosis subunit vaccine against Mycobacterium tuberculosis infection in mice
Zejiao DA ; Lina HU ; Bingxiang WANG ; Wenwen JIANG ; Linfeng FU ; Hongjuan YU ; Yu LUO ; Bingdong ZHU
Chinese Journal of Microbiology and Immunology 2010;30(6):555-559
Objective To investigate the adjuvant effect of dimo-thylidioctyl ammonium bromide (DDA) and/or DDA-BCG polysaccharide nucleic acid( BCG-PSN), which was combined with a Mycobacterium tuberculosis fusion protein AMM ( Ag 8 5 B - MPT64190-198 - Mtb8.4 ) to boost BCG primed immunization. Methods DDA with or without BCG PSN was mixed with the fusion protein AMM to construct the boosting vaccine. Mice were immunized with BCG and then boosted twice with AMM formulated with the adjuvant DDA with or without BCG-PSN. PBS or BCG vaccination without boosting was used as control. The humoral and cell-mediated immune responses were analyzed by ELISA and ELISPOT. Moreover, the protective efficacy of BCG prime-AMM subunit vaccine boosting against Mycobacterium tuberculosis infection was analyzed. Results With in vitro stimulation of Ag85B and PPD( purified protein derivative) antigen, the number of IFN-γ secreting cells from the mice boosted twice by AMM/DDA/BCG-PSN and AMM/DDA were higher than BCG and PBS group (P <0.05). The CFU in lungs of mice boosted with AMM/DDA/BCG-PSN was less than that of PBS group(P <0.05), while the CFU of AMM/DDA-boosted mice was less than that of BCG and PBS group(P < 0.05).However, fewer lesions were seen in lungs of mice immunized with BCG alone or BCG-prime-AMM/DDA/BCG-PSN boosting than the other groups. Conclusion DDA is an idea adjuvant for tuberculosis subunit vaccine;BCG-PSN might play a role in alleviating the immunity-mediated pathology.
7.Migration and invasion abilities of normal fibroblast-like synoviocytes versus fibroblast-like synoviocytes in rheumatoid arthritis
Jun HU ; Zizheng TANG ; Yu ZHANG ; Weigan SHEN ; Guiping LIU ; Wenwen WANG ; Jiahuan LIU
Chinese Journal of Tissue Engineering Research 2017;21(24):3870-3874
BACKGROUND:Fibroblast-like synoviocytes (FLS) in the synovial lining layer are related to the cell proliferation, invasion, migration and apoptosis as well as bone resorption in rheumatoid arthritis. OBJECTIVE:To compare the migration and invasion abilities of FLS (MH7A) in rheumatoid arthritis and normal FLS (HFLS). METHODS:The capacities of cell migration and invasion were evaluated by Transwell cell migration and invasion assays. The primers of the indicated microRNAs were designed and synthesized, and the expression levels of miRNAs were determined by real-time PCR according to the SYBR?PrimeScript?miRNA RT-PCR Kit instruction. RESULTS AND CONCLUSION:MH7A possessed stronger migration and invasion abilities than HFLS. Compared with HFLS, obviously upregulated miR-132, -155, -203, -223 and -124, and significantly downregulated miR-15a, -16, 18a, -19a, -26a and -146a were found in MH7A. These findings suggest that the differentially expressed 11 kinds of rheumatoid arthritis-associated miRNAs participate in the pathogenesis of rheumatoid arthritis probably by enhancing the migration and invasion capacities of MH7A.
8.Construction and development of medical functional experiment integrated curriculum
Yanxia WANG ; Youmin HU ; Dao LI ; Xuemei FENG ; Ying ZHANG ; Wenwen NI ; Chen HUANG
Chinese Journal of Medical Education Research 2017;16(5):463-467
To cultivate high-quality medical talents,Shanghai Jiao Tong University School of Medicine established a multidisciplinary and comprehensive basic medical practical integration curriculum Medical Functional Experiment.Over several years' exploration and renovation,insisting on student-centered,this course has established a modular experiment teaching system with emphasis on foundation,combina-tion with clinical and focusing on innovation.Integration curriculum adopts four-stage teaching pattern which is suitable for medical students,and implements diversified teaching method and evaluation system.And meanwhile,the paper explores the ideas and approaches to further deepen the construction of teaching staff,expand experimental teaching techniques,strengthen the construction of curriculum materials,and strengthen the cultivation of teachers' innovative ability.
9.Myeliod sarcoma in cardio-phrenic angle after allogeneic peripheral blood stem cell transplantation
Yi HE ; Xudong LI ; Dongning WANG ; Yuan HU ; Wenwen WANG ; Jiajun LIU ; Dongjun LIN ; Renwei HUANG
Chinese Journal of Tissue Engineering Research 2013;(27):5041-5047
BACKGROUND: Al ogeneic hematopoietic stem cel transplantation is the main method to cure leukemia, but the patients receiving al ogeneic hematopoietic stem cel transplantation stil have to face the risk of recurrence. Myeloid sarcoma is a rare extramedul ary relapse mode with worse clinical outcomes, so it is necessary to understand the characteristics of myeloid sarcoma and relative treatment methods. OBJECTIVE: To analyze the clinical characteristics and treatment methods of myeliod sarcomas in cardio-phrenic angle after al ogeneic peripheral blood stem cel transplantation. METHODS: One case was diagnosed as single myeloid sacoma in the cardio-phrenic angle after al ogeneic peripheral blood stem cel transplantation. The patient underwent surgical resection of the mass, chemotherapy and radiotherapy. The clinical effect, complications and survival situation were observed. RESULTS AND CONCLUSION: The patient suffered from bacteremia, fungal pneumonia and even life-threatening sepsis shock during two courses chemotherapies. Then, the patient received radiotherapy for mediastinum and the myeloid sacoma never relapsed. However, the patient suffered central nervous system leukemia after free of the disease for 25 months. Myeliod sarcoma after al ogeneic hematopoietic stem cel transplantation is rare and its manifestation is changeful. The diagnosis mainly depends on histopathology and immunohistochemistry. Surgery, chemotherapy, radiotherapy, second transplantation and molecular targeted drugs are the choices of treatment strategy. However, the optimal treatment strategy for individual patients remains to be determined.
10.Content Determination of Astragaloside in Danggui Buxue Formula Granule by HPLC
Guangsheng LI ; Fang QIN ; Jiling YANG ; Wenwen HU ; Junli ZHANG ; Weixin ZHANG
China Pharmacy 2015;26(36):5131-5133
OBJECTIVE:To establish a method for content determination of astragaloside in Danggui buxue formula granule, and investigate the influence of different conditions of dissolution on the content. METHODS:HPLC was performed on the column of Aglient C18 with mobile phase of acetonitrile-water(28:72,V/V)at flow rate of 1.0 ml/min,column temperature was 25 ℃,and the injection volume was 10 μl. RESUITS:The linear range of astragaloside was 2.91-17.46 μg;RSDs of precision,stability were lower than 2%,and reproducibility tests was 3.63%,recovery was 95.76%-98.20%(RSD=1.03%,n=6). The optimized use method was mixing the two granules with 80 ℃ hot water and keeping heat preservation for 5 min successively before taken. CON-CLUSIONS:The method is simple and reproducible,and can be used for the content determination of astragaloside in Danggui bux-ue formula granule.