1.Curriculum Construction of Occupational Therapy Technique in Higher Vocational Education
Xuezhen MA ; Xiaochen WANG ; Yi CHEN
Chinese Journal of Rehabilitation Theory and Practice 2012;18(8):789-790
Occupational therapy technique is one of the core curriculums of rehabilitation treatment profession. Curriculum construction of occupational therapy technique will have a direct impact on students' quality. This article introduced the reform in the process of curriculum construction from aspects including the curriculum standards, textbooks, teaching methods and course evaluation.
2.Reform of Teaching for Higher Vocational Rehabilitation Therapy
Yi CHEN ; Xuezhen MA ; Xiaochen WANG
Chinese Journal of Rehabilitation Theory and Practice 2013;19(3):296-297
This article introduced the reform of the teaching mode for Rehabilitation Therapy in higher vocational education, including the course of theory and practice, system of personnel training and assessment.
3.Task-driven Teaching Mode for Physical Therapy in Higher Vocational Education
Xiaochen WANG ; Yi CHEN ; Xuezhen MA
Chinese Journal of Rehabilitation Theory and Practice 2010;16(5):497-498
ObjectiveTo investigate the effects of task-driven teaching mode on physical therapy teaching in higher vocational education. Methods40 students in 2006 rehabilitation class were taught with routine mode as the control group, while 35 students in 2007 rehabilitation class taught with task-driven mode and routine mode as experimental group. ResultsAt the end of the course, the results of examination in theory and practice were better in the experimental group than control group (P<0.01). 85.71%~94.28% students in the experimental group said that the task-driven teaching mode could improve their comprehensive quality especially the skill of practice, as well as the interest and ability of learning. ConclusionTask-driven teaching mode can improve the teaching effect on physical therapy, and received by most of the students.
4.The protection of clopidogrel in a rat model of decompression sickness
Xiaochen BAO ; Yiqun FANG ; Fangfang WANG ; Pu YOU ; Jun MA
Military Medical Sciences 2014;(7):481-484
Objective Platelet aggregation, activation induced by bubbles is the main cause of decompression sick-ness.Clopidogrel(Clo) can decrease platelet aggregation through inhibiting the bind of fibrinogen and ADP .This study is designed to find if Clopidogrel can paly a protective role in decompression sickness and explore the intervention mechanism . Methods Totally 111 male SD rats divided into 3 groups:normal control group (n=20), decompression sickness(DCS) group(n=46), and DCS+Clo(Clopidogrel)treated decompression sickness (DCS+Clo)group(n=45).The rats in DCS and DCS+Clo group were placed in chamber and compressed to 1.5 MPa at speed of 2t/4 , the time of compression and res-idence was 4.5 min totally, then decompressed to surface at a speed of 3 m/s.The mortality and behavioral of rats were ob-served within 30 min post decompression .The pathology and the wet/dry ratio of lung , WBC and platelet counts in periph-eral blood, the expression of activated platelets , and immunohistochemical detection of lung tissue CD 41 expression were also been tested .Results We found Clo reduces the DCS mortality risk ( mortality rate:11/45 in DCS+Clo group vs 28/46 in DCS group, P<0.01).Clo reduced the lung injury, the wet/dry ratio of lung, the accumulation of platelet and leu-kocyte in lung , the WBC counts and activated platelets in peripheral blood .Conclusion Clo can play a protective role in decompression sickness through reducing post-decompression platelet consumption and activation , decreasing the activation of leukocytes .
5.Course Construction of Physical Therapy for Higher Vocational Education
Yi CHEN ; Xiaochen WANG ; Hui ZHANG ; Xuezhen MA
Chinese Journal of Rehabilitation Theory and Practice 2009;15(11):1098-1099
Physical therapy is one of the core courses of rehabilitation therapy in higher vocational education. This paper would introduce the experience of choice of materials, contents and teachings as well as the teachers construction. Some suggestions in course construction were discussed.
6.Recent progress of the research on spore surface display.
Xiaoman XU ; Xiaochen WANG ; Cuiqing MA
Chinese Journal of Biotechnology 2010;26(10):1404-1409
Spore surface display is one of attractive microorganism surface display systems. With the advantage of resistance attribute and specific assembly pattern, the technology of spore surface display now is attracting more and more attention. According to the current reports and main achievements of spore surface display, the structure and assembly of spores, the principle for construction and some existing spore surface display systems were elaborated in this paper. Now with the unique property of spores, the technique is not only widely used in production of vaccines but also has great applied potential in the field of biocatalysis and cell-factory.
Bacillus subtilis
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genetics
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metabolism
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Biocatalysis
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Biotechnology
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methods
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Gene Expression Regulation, Bacterial
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Genetic Engineering
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methods
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Recombinant Proteins
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genetics
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metabolism
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Spores, Bacterial
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genetics
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metabolism
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Tetanus Toxoid
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genetics
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immunology
7.Preparation of monoclonal antibodies against ricin toxin and development of up-converting phosphor technology-based lateral flow assay for its quantitative detection
Xiaochen WANG ; Lei ZHOU ; Chongyun SUN ; Yong ZHAO ; Xinrui WANG ; Pingping ZHANG ; Ruifu YANG ; Xin MA
Military Medical Sciences 2016;40(8):676-679
Objective To develop an up-converting phosphor technology based lateral flow assay ( UPT-LF) to detect ricin toxin ( RT) quickly, accurately and quantitatively.Methods Ricin-monoclonal antibodies were prepared and their affinity was evaluated before four types of monoclonal antibodies with the highest titer were applied to couple with the up-converting phosphor nano-particles ( UCP-NPs) as the bio-conjugate and disperse on the analysis membrane as the test line, respectively.Following systematic optimization to establish the RT-UPT-LF strip, the sensitivity, precision, quantita-tive ability and specificity of RT-UPT-LF were evaluated.Results The detection could be accomplished within 15 min and the detection limit of the RT-UPT-LF assay could reach 0.5 ng/ml within the quantitative detection range of 0.5-1000 ng/ml.Other non-specific toxins at a concentration of 1000 ng/ml did not cause any non-specific reactions.Conclusion The developed RT-UPT-LF strip provides a new means for on-site quantitative detection of ricin toxin.
8.miR-222 can inhibit the autophagy of renal cell carcinoma cells through down-regulating the expression of DDIT4
Xiaochen NI ; Zhihong ZHAO ; Yongliang MA ; Zongtao REN ; Bin LIU ; Aili ZHANG
China Oncology 2015;(3):161-166
Background and purpose:MicroRNA (miRNA, miR) plays an important regulatory role in cancer. miR-222 is reported to be up-regulated in various tumors, but its role in renal cell carcinoma (RCC) remains unclear. In this study, we detected the expression of miR-222 in both RCC and adjacent tissue samples. The aim of this study was to investigate the role of miR-222 in RCC. Methods:The expression levels of miR-222 in RCC tissue samples were quantified by quantitative real-time polymerase chain reaction (qRT-PCR). DDIT4 and LC3-Ⅱ protein expressions were determined by Western blot. Dual luciferase assay was performed to verify the target of miR-222. EGFP-LC3 microscopy assay was performed to assess autophagy. Results:Results from qRT-PCR showed that the expression of miR-222 was up-regulated in RCC tissues. Knockdown of miR-222 with speciifc antagomiR decreased the cell viability of 786-O cells, whereas overexpression of miR-222 increased the cell viability (P<0.01). The levels of DDIT4 were up-regulated in 786-O cells transfected with miR-222 antagomiR, whereas overexpression of miR-222 induced the down-regulation of DDIT4 expression. Data from dual luciferase assay indicated that miR-222 directly targeted the expression of DDIT4. Consistently, the expression of DDIT4 in RCC tissues was down-regulated compared with adjacent tissues. Knockdown of miR-222 in 786-O cells induced a signiifcant increase of autophagosome formation and LC3 lipidation.These results supported that miR-222 could inhibit autophagy in RCC cells, which may affect the clinical characteristcs of RCC. Conclusion: miR-222 is up-regulated in RCC and can inhibit the autophagy of RCC cells through down-regulating the expression of DDIT4.
9.Hinokitiol induces clear cell renal cancer 786-O cell apoptosis via autophagy induction
Xiaochen NI ; Zhihong ZHAO ; Yongliang MA ; Zongtao REN ; Bin LIU ; Bo FAN ; Shufei WEI ; Aili ZHANG
Chinese Journal of Clinical Oncology 2015;(1):43-46
Objective: To investigate the effects of hinokitiol on the proliferative inhibition and apoptosis induction in human clear cell renal cancer 786-O cells. Methods:CCK-8 assays were performed to analyze the effects of hinokitiol on the proliferation of 786-O cells. The apoptosis rate was determined by flow cytometry. EGFP-LC3 microscopy assays were performed to assess the autoph-agy flux. Cleaved Caspase-3, LC3, and P62 were detected by Western blot. Results: Hinokitiol could inhibit the proliferation of the 786-O cells and could induce cell apoptosis via Caspase pathway. Hinokitiol induced the autophagy of 786-O cells, increased LC3 ex-pression, and downregulated P62 expression. Conclusion: Hinokitiol can inhibit the proliferation of 786-O cells and can induce cell apoptosis via autophagy induction.
10.Effect of N-acetylcysteine on lung and heart injury of rats with a fast floating escape induced decompression sickness
Fangfang WANG ; Yiqun FANG ; Pu YOU ; Xiaochen BAO ; Jun MA ; Shi ZHANG
Military Medical Sciences 2015;(2):89-91
Objective To investigate the effect of N-acetylcysteine ( NAC) on lung and heart injury of rats with a fast floating escape induced decompression sickness .Methods Eighty male Sprague-Dawley rats were randomly and evenly divided into four groups:control group and three NAC prevention groups .The NAC groups were treated with different doses of NAC(250, 500 or 1000 mg/kg)by intraperitoneal injection 1 h before entrance.In the control group, rats were given an equal volume of saline1h before entrance.The air was pressurized at the 2t/7 exponential rate to 1.5 MPa which was maintained for 4 min and then uniformly decompressed to atmospheric pressure .The extravehicular survival and pathological changes in the lung and heart tissue were detected 0.5 h after rat egress.Results The survival rate of rats treated with NAC 500 mg/kg(90%) was significantly higher than that of those treated with saline (65%)alone (P<0.05).There was large break and fusion in the structure of pulmonary alveolus of control group besides obvious erythrocyte exudation , cardiac muscle fibers edema ,and obvious denaturation and break .Conclusion NAC can play a protective role in rats with a fast floating escape induced decompression sickness by mitigating the injury to and inflammation of lung and heart tissue .