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Four Dimensions of Integrating Chinese Culture Into College English Teaching From the Perspective of Tyler’s Basic Principles
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作者 CHEN Lijuan 《Sino-US English Teaching》 2024年第5期232-237,共6页
Integrating Chinese culture into college English can not only enhance students’humanities literacy and cultivate their cultural confidence,but also facilitate the inheritance and international dissemination of Chines... Integrating Chinese culture into college English can not only enhance students’humanities literacy and cultivate their cultural confidence,but also facilitate the inheritance and international dissemination of Chinese culture.Taking Tyler’s curriculum framework as the starting point,this paper analyzes some factors that affect the integration of Chinese culture into the college English teaching and proposes some strategies for the integration of Chinese culture into college English teaching by innovating teaching objectives,enriching teaching contents,transforming modes of course delivery,and reconstructing the assessment system. 展开更多
关键词 Tyler’s basic principles Chinese culture college English
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α-Synuclein pathology from the body to the brain:so many seeds so close to the central soil 被引量:1
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作者 Yunying Yang Zhentao Zhang 《Neural Regeneration Research》 SCIE CAS CSCD 2024年第7期1463-1472,共10页
α-Synuclein is a protein that mainly exists in the presynaptic terminals.Abnormal folding and accumulation of α-synuclein are found in several neurodegenerative diseases,including Parkinson’s disease.Aggregated and... α-Synuclein is a protein that mainly exists in the presynaptic terminals.Abnormal folding and accumulation of α-synuclein are found in several neurodegenerative diseases,including Parkinson’s disease.Aggregated and highly phospho rylated a-synuclein constitutes the main component of Lewy bodies in the brain,the pathological hallmark of Parkinson s disease.For decades,much attention has been focused on the accumulation of α-synuclein in the brain parenchyma rather than considering Parkinson s disease as a systemic disease.Recent evidence demonstrates that,at least in some patients,the initial α-synuclein pathology originates in the peripheral organs and spreads to the brain.Injection of α-synuclein preformed fibrils into the gastrointestinal tra ct trigge rs the gutto-brain propagation of α-synuclein pathology.However,whether α-synuclein pathology can occur spontaneously in peripheral organs independent of exogenous α-synuclein preformed fibrils or pathological α-synuclein leakage from the central nervous system remains under investigation.In this review,we aimed to summarize the role of peripheral α-synuclein pathology in the pathogenesis of Parkinson’s disease.We also discuss the pathways by which α-synuclein pathology spreads from the body to the brain. 展开更多
关键词 aggregation autonomic nervous system barrier receptors body fluid circulation in situ generation Parkinson’s disease PHOsPHORYLATION propagation sYNUCLEINOPATHIEs Α-sYNUCLEIN α-synuclein fibrils
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Loose Body in the Knee Joint: A Case Report
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作者 Hussein Khudhur Joudi Habbal Waleed Mohammed 《Open Journal of Orthopedics》 2024年第10期436-440,共5页
Background: Loose bodies (LBs) within the knee joint are commonly encountered during clinical practice and are frequently observed during knee arthroscopy. The primary treatment involves the removal of loose bodies;ho... Background: Loose bodies (LBs) within the knee joint are commonly encountered during clinical practice and are frequently observed during knee arthroscopy. The primary treatment involves the removal of loose bodies;however, their complete eradication is often challenging and may not address underlying diseases, leading to persistent symptoms and the risk of new loose body formation. Aim: This case report aims to present the findings and surgical management of a 52-year-old male with an unusually large osseous loose body in the knee joint and associated pathologies. Case Presentation: The patient, a 52-year-old male, experienced recurrent episodes of severe, sudden, and painful locking of the knee joint, leading to difficulties moving. A plain MRI study was conducted to evaluate the condition of the knee joint, which revealed various degenerative changes and the presence of a loose body. Subsequently, an arthroscopic examination was performed under general anesthesia, uncovering the presence of an abnormally large loose body, as well as other pathologies including chondropathy, meniscal degeneration, and Baker’s cyst. Conclusion: Loose bodies (LBs) in the knee joint pose significant challenges and may lead to debilitating symptoms. Timely diagnosis and appropriate surgical intervention are crucial for symptom relief and the prevention of further joint damage as arthroscopic excision. Comprehensive imaging has a vital role in guiding treatment decisions and optimizing patient outcomes. In this case, the removal of the loose body improved patient outcomes and helped prevent potential joint complications. 展开更多
关键词 Loose Bodies Knee Joint ARTHROsCOPY MRI Osseous Loose body surgical Management Meniscal Degeneration Baker’s Cyst BURsITIs Osteoarthritic Changes Comprehensive Treatment
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Cross-Cultural Adjustment and Coping:U.S.Students in Taiwan Residents Higher Education
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作者 Wen-Ling Lou 《Sino-US English Teaching》 2024年第1期26-42,共17页
The aim of this study was to investigate the adjustment problems of students from the United States enrolled in universities in the East,specifically in Taiwan,their problems related to cultural adaptation,and the pro... The aim of this study was to investigate the adjustment problems of students from the United States enrolled in universities in the East,specifically in Taiwan,their problems related to cultural adaptation,and the process of adjustment to student life in Taiwan.Under investigation were cultural adjustment and coping skills as these students transitioned from West to East.Qualitative data were collected from interviews with participants and faculty members as well as participant observations.Results indicated that U.S.students found their own ways to acclimate to their new academic setting as well as to social relations,cross-cultural issues,and the linguistic environment in Taiwan to achieve effective adaptation.They made changes in themselves to cope with all situations they encountered.This study provides suggestions for international students abroad in Taiwan,for the Taiwan Residents government,and for universities or colleges in terms of what they should offer to current and future international students. 展开更多
关键词 adjustment cultural adjustment cross-cultural adaptation COPING U.s.students
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Writing the Silenced Female Body, Scrutinizing the Grand Narrative of Colonization and Decolonization: The Body in Zoë Wicomb’s David’s Story
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作者 SHI Ju-hong LUO Wen-jie 《Journal of Literature and Art Studies》 2024年第7期576-583,共8页
David’s Story by Zoë Wicomb addresses the complexities of representing female suffering and the limitations of traditional historical narratives in capturing the experiences of marginalized bodies.It challenges ... David’s Story by Zoë Wicomb addresses the complexities of representing female suffering and the limitations of traditional historical narratives in capturing the experiences of marginalized bodies.It challenges the grand narratives of national history by emphasizing the indispensable role of women’s experiences.Through characters like Dulcie and Rachael,Wicomb portrays the female body as a site of resistance and resilience,highlighting the need for more nuanced and inclusive ways of documenting history.Underscoring the inexpressibility of trauma and the limitations of language and representation,the novel self-reflexively acknowledges its own aporia of completing the narrative,embodying the ongoing struggle to capture the full breadth of human experience. 展开更多
关键词 David’s story silenced female body caution against grand narrative
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The Importance of Body Language in Cultures
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作者 魏杰 崔绪娥 张绘丽 《海外英语》 2011年第2X期238-239,共2页
Communication is necessary to people's daily life. Although we may not realize it when we talk with others, we make ourselves understood not only by words. Body language sometimes helps make the communication easy... Communication is necessary to people's daily life. Although we may not realize it when we talk with others, we make ourselves understood not only by words. Body language sometimes helps make the communication easy and effective. Body language is treated as equivalent to nonverbal communication which sends 65 percent communication message. In order to improve the quality of our communication, we should pay more attention to nonverbal communication. In addition, culture influences communication. Different country has different culture. Every culture has its own body language. It is useful to learn more about such body language, especially the using of body language in different culture. 展开更多
关键词 COMMUNICATION culture body LANGUAGE NONVERBAL COMMUNICATION
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Cognitive Science,Cold War,and Cultural Imagination:A Case Study of The Body Snatchers
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作者 XIE Sihe 《Cultural and Religious Studies》 2023年第12期628-635,共8页
Cognitive cultural studies discuss the connection between culture and mind with insights from different areas of cognitive science and explore the functions of the shared features of human cognition in cultural produc... Cognitive cultural studies discuss the connection between culture and mind with insights from different areas of cognitive science and explore the functions of the shared features of human cognition in cultural production of specific historical context.The analysis of the American Sci-Fi The Body Snatchers from this perspective reveals the cognitive logic during the cold war period,and indicates that this science fiction not only records and shapes the American social psychology during the Cold War,but also serves as an effective medium through which the political and cultural symptoms of that period can be observed,interpreted,and reflected. 展开更多
关键词 cognitive cultural studies sci-Fi The body snatchers
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The English Translation of Lunyu and the Dissemination of the Confucian Culture
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作者 LU Ming-yan ZHANG Shun-sheng 《Journal of Literature and Art Studies》 2023年第3期178-183,共6页
As one of the carriers of Confucian culture,and from ancient times to the present,Lunyu or The Analects or The Analects of Confucius,has been well received by readers at home and abroad,and there are more and more Eng... As one of the carriers of Confucian culture,and from ancient times to the present,Lunyu or The Analects or The Analects of Confucius,has been well received by readers at home and abroad,and there are more and more English translations of Lunyu.This article will select some of the vocabulary translations with ancient Chinese characteristics in Lunyu as the object,employ the method of a comparative analysis to explore the cultural connotation behind the text and the dissemination of the translation,and discuss the translator’s translation strategies.Judging from the research on The Analects by scholars from home and abroad and the opening and development of overseas Confucius Institutes,Lunyu has exerted an enlightenment effect in different times. 展开更多
关键词 Lunyu Confucian culture culture-loaded words Amoy Ku’s version William Edward soothill’s version TRANsLATION
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Philosophy Smiles under the Veil of Culture—the Swerve of Body Philosophy
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作者 李欢 《海外英语》 2014年第11X期223-224,共2页
It is obvious that body becomes one of the focuses of modern cultural studies. However, philosophy is the root of cultural tree. To penetrate the cultural phenomenon, philosophy provides an insight. Within the western... It is obvious that body becomes one of the focuses of modern cultural studies. However, philosophy is the root of cultural tree. To penetrate the cultural phenomenon, philosophy provides an insight. Within the western traditional dualism of body and spirit, body goes through ups and downs. Understanding this philosophical swerve of body leads us to catch on those cultural changes. 展开更多
关键词 PHILOsOPHY culturAL studies swerve body
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Culture and Arts Bodies in Gansu
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《China & The World Cultural Exchange》 1998年第1期21-25,共5页
关键词 culture and Arts Bodies in Gansu
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The Culture Features of Body Language
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作者 庞江梅 《商情》 2010年第17期107-107,共1页
关键词 中学 英语教学 教学方法 阅读
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A Cultural Study of the Differences Between Chinese and American Body Languages 被引量:1
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作者 缪明珠 《海外英语》 2013年第24期230-231,共2页
For decades of years, scholars at home and abroad have committed themselves to the study of the differences in body communication from the perspective of culture and presented people with plentiful precious accomplish... For decades of years, scholars at home and abroad have committed themselves to the study of the differences in body communication from the perspective of culture and presented people with plentiful precious accomplishments. Scholars have their own definition of body communication and thus its classification varies from one to another. As to the characteristics and functions of body communication, this thesis employs the methods of comparison to demonstrate the universal and the special characteristics of Chinese and American body languages respectively and macro-functions of the body language from the differ?ent cultures as well. What's more, it is concluded from the study that in the cultural transfer, it is the concept of cultural value that has great influence on the body behaviors through people's different thinking patterns and behavioral habits. 展开更多
关键词 body COMMUNICATION hidden cultures CROss-culturAL
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基于S-O-R模型的视觉营销对消费者购买意愿的影响研究——以红色文创网店为例 被引量:1
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作者 魏加兴 张婷婷 《市场周刊》 2024年第1期76-80,共5页
为提高红色文创网店的点击转化率,文章从消费者视角出发,研究影响消费者购买意愿的视觉因素。基于S-O-R模型理论,构建红色文创网店视觉营销对消费者购买意愿因素的理论模型。利用S-O-R模型分析了红色文创网店视觉营销中的商品形象、界... 为提高红色文创网店的点击转化率,文章从消费者视角出发,研究影响消费者购买意愿的视觉因素。基于S-O-R模型理论,构建红色文创网店视觉营销对消费者购买意愿因素的理论模型。利用S-O-R模型分析了红色文创网店视觉营销中的商品形象、界面形象以及品牌视觉形象对顾客感知价值及顾客购买意向的影响。通过设计量表和调查问卷进行实证研究,并结合结构方程模型加以论证,得出品牌视觉形象和界面形象是影响消费者购买意愿的关键因素,为设计师和红色文创品牌进行网店设计提供了一定的理论参考和建议。 展开更多
关键词 s-O-R模型 消费者购买意愿 红色文创产品 视觉营销
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Cultures and Subcultures
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作者 朱娜 《海外英语》 2017年第20期165-166,共2页
A cross-cultural analysis of an extract of the book Lost in Translation is provided in the essay. Definitions of culture and subculture are discussed and different theories from Hofstede and Schwartz are referred to i... A cross-cultural analysis of an extract of the book Lost in Translation is provided in the essay. Definitions of culture and subculture are discussed and different theories from Hofstede and Schwartz are referred to in order to validate the analysis. 展开更多
关键词 culture sUBcultures Hofstede’s theory schwartz’s theory
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A novel binary effective medium model to describe the prepeak stressstrain relationship of combined bodies of rock-like material and rock 被引量:2
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作者 Tienan Wang Yue Zhai +2 位作者 Huan Gao Yubai Li Ruifeng Zhao 《International Journal of Mining Science and Technology》 SCIE EI CAS CSCD 2023年第5期601-616,共16页
Combined bodies of rock-like material and rock are widely encountered in geotechnical engineering,such as tunnels and mines.The existing theoretical models describing the stress-strain relationship of a combined body ... Combined bodies of rock-like material and rock are widely encountered in geotechnical engineering,such as tunnels and mines.The existing theoretical models describing the stress-strain relationship of a combined body lack a binary feature.Based on effective medium theory,this paper presents the governing equation of the“elastic modulus”for combined and single bodies under triaxial compressive tests.A binary effective medium model is then established.Based on the compressive experiment of concretegranite combined bodies,the feasibility of determining the stress threshold based on crack axial strain is discussed,and the model is verified.The model is further extended to coal-rock combined bodies of more diverse types,and the variation laws of the compressive mechanical parameters are then discussed.The results show that the fitting accuracy of the model with the experimental curves of the concretegranite combined bodies and various types of coal-rock combined bodies are over 95%.The crack axial strain method can replace the crack volumetric strain method,which clarifies the physical meanings of the model parameters.The variation laws of matrix parameters and crack parameters are discussed in depth and are expected to be more widely used in geotechnical engineering. 展开更多
关键词 Combined body stress-strain relationship Hooke’s law Effective medium theory stress threshold determination
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Joint Detection of Serum Vitamin D,Body Mass Index,and Tumor Necrosis Factor Alpha for the Diagnosis of Crohn’s Disease 被引量:1
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作者 Ying ZHENG Jing-hong LI +7 位作者 Shan-ying LIAO Yi-ming FU Yan-jun ZHANG Jun-long LIN Xin-bin CHEN Wei-hong SHA Shi-xue DAI Wen-jun MA 《Current Medical Science》 SCIE CAS 2023年第3期496-504,共9页
Objective Vitamin D(VD)deficiency was reported to contribute to the progression of Crohn’s disease(CD)and affect the prognosis of CD patients.This study investigated the role of serum VD,body mass index(BMI),and tumo... Objective Vitamin D(VD)deficiency was reported to contribute to the progression of Crohn’s disease(CD)and affect the prognosis of CD patients.This study investigated the role of serum VD,body mass index(BMI),and tumor necrosis factor alpha(TNF-α)in the diagnosis of Crohn’s disease.Methods CD patients(n=76)and healthy subjects(n=76)were enrolled between May 2019 and December 2020.The serum 25-hydroxyvitamin D[25(OH)D]levels,BMI,and TNF-αlevels,together with other biochemical parameters,were assessed before treatment.The diagnostic efficacy of the single and joint detection of serum 25(OH)D,BMI,and TNF-αwas determined using receiver operating characteristic(ROC)curves.Results The levels of 25(OH)D,BMI,and nutritional indicators,including hemoglobin,total protein,albumin,and high-density lipoprotein cholesterol,were much lower,and the TNF-αlevels were much higher in the CD patients than in the healthy subjects(P<0.05 for all).The areas under the ROC curve for the single detection of 25(OH)D,BMI,and TNF-αwere 0.887,0.896,and 0.838,respectively,with the optimal cutoff values being 20.64 ng/mL,19.77 kg/m^(2),and 6.85 fmol/mL,respectively.The diagnostic efficacy of the joint detection of 25(OH)D,BMI,and TNF-αwas the highest,with an area under the ROC curve of 0.988(95%CI:0.968–1.000).Conclusion The joint detection of 25(OH)D,TNF-α,and BMI showed high sensitivity,specificity,and accuracy in CD diagnosis;thus,it would be effective for the diagnosis of CD in clinical practice. 展开更多
关键词 Crohn’s disease vitamin D body mass index tumor necrosis factor alpha
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A Comparison Study on Flesh Quality of Large Yellow Croaker (Larimichthys croceus) Cultured with Three Different Modes 被引量:2
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作者 LI Xiaoqin LI Baian +3 位作者 CHEN Naisong HUANG Xuxiong HUA Xuemin LENG Xiangjun 《Journal of Ocean University of China》 SCIE CAS CSCD 2017年第6期1187-1194,共8页
To compare the flesh quality of large yellow croaker cultured with three different modes, enclosure culture(EC), cage culture with feeding trash fish(CCF) and cage culture with feeding formula diet(CCD), thirty six fi... To compare the flesh quality of large yellow croaker cultured with three different modes, enclosure culture(EC), cage culture with feeding trash fish(CCF) and cage culture with feeding formula diet(CCD), thirty six fish individuals of EC(484.6 ± 79.8 g), CCF(432.7 ± 87.9 g) and CCD(416.9 ± 49.5 g) were sampled to measure body color, flesh water holding capacity, flesh proximate composition, amino acids and fatty acids composition, and collagen and inosinic acid contents. The analysis showed that there was no significant difference in the yellowness of skin and the contents of crude protein and inosinic acid between CCD and EC(P > 0.05), and the two modes showed higher values than CCF(P < 0.05). Most of the amino acids(AA) in flesh were higher in EC than in CCF(P < 0.05), but CCD showed no difference in AA composition from the other two modes(P > 0.05). EC and CCD had higher contents of collagen, free AA and lower drip loss than CC(P < 0.05). In polyunsaturated fatty acids, EC showed significantly higher levels of C20:5 n-3 and C22:6 n-3 than CCF and CCD(P < 0.05), but CCD had significantly higher C18:2 n-6 than CCF and EC(P < 0.05). In conclusion, the flesh quality of CCD fish is similar to EC fish, and these two modes have better flesh quality than CCF. 展开更多
关键词 large YELLOW CROAKER FLEsH quality body color culture mode
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Simplified three-dimensional culture system for long-term expansion of embryonic stem cells 被引量:2
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作者 Christina McKee Mick Perez-Cruet +1 位作者 Ferman Chavez G Rasul Chaudhry 《World Journal of Stem Cells》 SCIE CAS 2015年第7期1064-1077,共14页
AIM: To devise a simplified and efficient method for long-term culture and maintenance of embryonic stem cells requiring less frequent passaging. METHODS: Mouse embryonic stem cells(ESCs) labeled with enhanced yellow ... AIM: To devise a simplified and efficient method for long-term culture and maintenance of embryonic stem cells requiring less frequent passaging. METHODS: Mouse embryonic stem cells(ESCs) labeled with enhanced yellow fluorescent protein were cultured in three-dimensional(3-D) self-assembling scaffolds and compared with traditional two-dimentional(2-D) culture techniques requiring mouse embryonic fibroblast feeder layers or leukemia inhibitory factor. 3-D scaffolds encapsulating ESCs were prepared by mixing ESCs with polyethylene glycol tetra-acrylate(PEG-4-Acr) and thiolfunctionalized dextran(Dex-SH). Distribution of ESCs in 3-D was monitored by confocal microscopy. Viability and proliferation of encapsulated cells during long-term culture were determined by propidium iodide as well as direct cell counts and PrestoB lue(PB) assays. Genetic expression of pluripotency markers(Oct4, Nanog, Klf4, and Sox2) in ESCs grown under 2-D and 3-D cultureconditions was examined by quantitative real-time polymerase chain reaction. Protein expression of selected stemness markers was determined by two different methods, immunofluorescence staining(Oct4 and Nanog) and western blot analysis(Oct4, Nanog, and Klf4). Pluripotency of 3-D scaffold grown ESCs was analyzed by in vivo teratoma assay and in vitro differentiation via embryoid bodies into cells of all three germ layers. RESULTS: Self-assembling scaffolds encapsulating ESCs for 3-D culture without the loss of cell viability were prepared by mixing PEG-4-Acr and Dex-SH(1:1 v/v) to a final concentration of 5%(w/v). Scaffold integrity was dependent on the degree of thiol substitution of Dex-SH and cell concentration. Scaffolds prepared using Dex-SH with 7.5% and 33% thiol substitution and incubated in culture medium maintained their integrity for 11 and 13 d without cells and 22 ± 5 d and 37 ± 5 d with cells, respectively. ESCs formed compact colonies, which progressively increased in size over time due to cell proliferation as determined by confocal microscopy and PB staining. 3-D scaffold cultured ESCs expressed significantly higher levels(P < 0.01) of Oct4, Nanog, and Kl4, showing a 2.8, 3.0 and 1.8 fold increase, respectively, in comparison to 2-D grown cells. A similar increase in the protein expression levels of Oct4, Nanog, and Klf4 was observed in 3-D grown ESCs. However, when 3-D cultured ESCs were subsequently passaged in 2-D culture conditions, the level of these pluripotent markers was reduced to normal levels. 3-D grown ESCs produced teratomas and yielded cells of all three germ layers, expressing brachyury(mesoderm), NCAM(ectoderm), and GATA4(endoderm) markers. Furthermore, these cells differentiated into osteogenic, chondrogenic, myogenic, and neural lineages expressing Col1, Col2, Myog, and Nestin, respectively. CONCLUSION: This novel 3-D culture system demonstrated long-term maintenance of mouse ESCs without the routine passaging and manipulation necessary for traditional 2-D cell propagation. 展开更多
关键词 THREE-DIMENsIONAL culture PLURIPOTENCY EMBRYONIC s
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Association between childhood obesity and gut microbiota:16S rRNA gene sequencing-based cohort study 被引量:1
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作者 Xu-Ming Li Qing Lv +2 位作者 Ya-Jun Chen Lu-Biao Yan Xin Xiong 《World Journal of Gastroenterology》 SCIE CAS 2024年第16期2249-2257,共9页
BACKGROUND This study aimed to identify characteristic gut genera in obese and normal-weight children(8-12 years old)using 16S rDNA sequencing.The research aimed to provide insights for mechanistic studies and prevent... BACKGROUND This study aimed to identify characteristic gut genera in obese and normal-weight children(8-12 years old)using 16S rDNA sequencing.The research aimed to provide insights for mechanistic studies and prevention strategies for childhood obesity.Thirty normal-weight and thirty age-and sex-matched obese children were included.Questionnaires and body measurements were collected,and fecal samples underwent 16S rDNA sequencing.Significant differences in body mass index(BMI)and body-fat percentage were observed between the groups.Analysis of gut microbiota diversity revealed lowerα-diversity in obese children.Differences in gut microbiota composition were found between the two groups.Prevotella and Firmicutes were more abundant in the obese group,while Bacteroides and Sanguibacteroides were more prevalent in the control group.AIM To identify the characteristic gut genera in obese and normal-weight children(8-12-year-old)using 16S rDNA sequencing,and provide a basis for subsequent mechanistic studies and prevention strategies for childhood obesity.METHODS Thirty each normal-weight,1:1 matched for age and sex,and obese children,with an obese status from 2020 to 2022,were included in the control and obese groups,respectively.Basic information was collected through questionnaires and body measurements were obtained from both obese and normal-weight children.Fecal samples were collected from both groups and subjected to 16S rDNA sequencing using an Illumina MiSeq sequencing platform for gut microbiota diversity analysis.RESULTS Significant differences in BMI and body-fat percentage were observed between the two groups.The Ace and Chao1 indices were significantly lower in the obese group than those in the control group,whereas differences were not significant in the Shannon and Simpson indices.Kruskal-Wallis tests indicated significant differences in unweighted and weighted UniFrac distances between the gut microbiota of normal-weight and obese children(P<0.01),suggesting substantial disparities in both the species and quantity of gut microbiota between the two groups.Prevotella,Firmicutes,Bacteroides,and Sanguibacteroides were more abundant in the obese and control groups,respectively.Heatmap results demonstrated significant differences in the gut microbiota composition between obese and normal-weight children.CONCLUSION Obese children exhibited lowerα-diversity in their gut microbiota than did the normal-weight children.Significant differences were observed in the composition of gut microbiota between obese and normal-weight children. 展开更多
关键词 Childhood obesity Gut microbiota 16s rDNA sequencing Diversity analysis Genus identification body mass index
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Establishment of the Culture Technique o f Pulmonary Vascular Pericytes and Its Identification in Rats 被引量:1
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作者 张燕 熊密 +1 位作者 车东媛 袁永辉 《Journal of Huazhong University of Science and Technology(Medical Sciences)》 SCIE CAS 1999年第1期24-27,共4页
Summary: In order to study the cellular origin of muscularization in non muscular arterioles of the lung, the pulmonary vascular pericytes culture was established. The terminal lung tissue of the rat was taken out a... Summary: In order to study the cellular origin of muscularization in non muscular arterioles of the lung, the pulmonary vascular pericytes culture was established. The terminal lung tissue of the rat was taken out and minced. Then 0.5 % of type Ⅳ collagenase solution was added for digestion and the microvascular segments were obtained by screening. The targeted cells were cultured by “selective conditioned media”. Under phase contrast microscope, the cultured cells were large in size with ragged margin and numerous pseudopodia, which imparted tubule like structure. There was no contact inhibition in growing cells, so multiple layers developed. When they were confluent, there were morphologically no “hillock and dale” growth pattern as in smooth muscle cells or “weave like” pattern as in fibroblasts. The ultrastructure of cultured cells showed numerous digital processes, moderate amount of rough and smooth endoplasmic reticulum, rich Golgi's apparatus, microfilaments, few lysosomes without myofilaments and dense bodies. Immunohistochemical staining revealed that the cultured pericytes had same kind of cellular skeletal protein, α SM actin, like smooth muscle cells. The cultured cells also exhibited positive reaction to CD 34 antigen and S 100 antigen, which were negative in smooth muscle cells and fibroblasts. The cell growth pattern, ultrastructure and immunological phenotype suggested that the cultured cells had characteristics of vascular pericytes. Pericytes are one of the components of microvascular cells, and the establishment of in vitro culture technique of pericytes is of significance for further exploration of the muscularization of non muscular arterioles in lung and the mechanism of structural remodeling of pulmonary vessels. 展开更多
关键词 cell culture PERICYTEs α sM actin CD 34 s 100
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