检索结果-南通市图书馆

Differentiation of Menstrual Blood Derived Stem Cell (MensSCs) to Hepatocyte-Liked Cell on Three Dimensional Nanofiberscaffold: Poly Caprolacton (PCL)

引用

Journal of Biomedical Science and Engineering 2016年第4期9卷 216-225页

作者： Farnaz Sani Giti Borzooeian Somayeh Kazemnejad Sepideh Ebrahimi Masoomeh Mohamadpour Sayeh Khanjani Mona Latifi seyed Mojtaba hosseini Mahin Salmannejad Fatemeh Aleahmad hossein Mehraban Jahromi Mahsa Sani Laboratory for Stem Cell Research Anatomy Department Shiraz Medical School Shiraz University of Medical Sciences Shiraz Iran Student Research Committee Shiraz University of Medical Sciences Shiraz Iran Departments of Embryology and Stem Cells Reproductive Biotechnology Research Center Avicenna Research Institute ACECR Tehran Iran Department of Biochemistry Shiraz Medical School Shiraz University of Medical Sciences Shiraz Iran Anatomy Histomorphometry and Stereology Research Center Shiraz Medical School Shiraz University of Medical Sciences Shiraz Iran

Menstrual blood stem cells (MensSCs) have enormous potential as a source for cell replacement therapies. Since there is a major concern in utilization of nanofibers in tissue engineering of stem cells, we examined the potential of MensSCs to differentiate into hepatocytes, using different protocols and compare cells, with two-dimensional (2D) and three-dimensional (3D) culture systems. Cell characterization experiments of MensSCs have demonstrated that they are multipotent stem cells similar to mesenchymal stem cells, which can successfully differentiate into osteogenic and adipogenic lineages. The efficiency of the cells on the scaffold was appraised by scanning electron microscopy (SEM), MTT assay, and hematoxylin and eosin (H&E) staining. Thereafter, the differentiation protocols were developed by hepatocyte growth factor (HGF) and oncostatin M (OSM) with serum-supplemented or serum-free culture media up to 30 days. Immunofluorescence analysis and ELISA assay revealed the expression of albumin (ALB) in differentiated cells. Hepatocyte-like cells expressed liver-specific gene such as albumin(ALB), α-fetoprotein (AFP), tyrosine aminotransferase (TAT) and cytochrome P450 subunit 7a1 (Cyp7a1) at mRNA levels. In conclusion, the evidences presented in this study show that the nanofiber scaffold and MensSCs may provide a source of differentiated cells for treatment of liver diseases.

关键词： Differentiation Hepatocyte Menstrual Blood Stem Cell 3D Cultures

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Relationship between religion and school students＇ road behavior in southern Iran

引用

Chinese Journal of Traumatology 2017年第5期20卷 264-269页

作者： Reza Tabrizi Maryam Akbari Kamran B. Lankarani seyed Taghi Heydari Alireza Masoudi Amir hossein Shams Armin Akbarzadeh Saba Moalemi Maryam Mahmoodi Mehr Abroad Kalateh Sadati Payam Peymani Health Policy Research Center Institute of Health Shiraz University of Medical Sciences Shiraz Iran Student Research Committee Shiraz University of Medical Sciences Shiraz Iran Department of Social Sciences Yazd University Yazd Iran

Purpose： Unsafe behaviors are an important cause of accidents in adolescent age groups. This study was designed to examine the behaviors of adolescent pedestrians in southern Iran. Methods： This is a descriptive analytical cross-sectional study. The study population consisted of high school students in Shiraz, capital city of Fars Province, Iran. Five hundred and sixteen students were selected by multi-stage sampling. Data were collected by the use of three questionnaires, which included Persian copies of adolescent road user behavior questionnaire （ARBQ）, Duke University Religious Index （DUREL）, as well as the context and independent variables questionnaire. Results： The results showed that a decrease in dangerous behaviors on the road resulted in an increase in respondents＇ intrinsic religiosity. Also, engagement in unsafe crossing behavior in the road decreased with increasing respondents＇ intrinsic religiosity. Another finding showed that female students were less involved in dangerous play and planned protective behaviors on the road. Conclusion： Findings clearly indicate that intrinsic religiosity has a significant role in reducing the risky road behaviors of students. Hence, religion may improve road safety in school students＇ road behavior in Iran.

关键词： Religion Traffic accidents Road behaviors Students

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

完整岩石在不同尺度上的屈服

引用

国际地震动态 2011年第1期32卷 115-122页

作者： Masoumi hossein Douglas Kurt J Alizadeh S M seyed 吴平静（译）田家勇（校） School of Civil and Environmental Engineering University of New South Wales Sydney NSW Australia School of Petroleum Engineering University of New South Wales Sydney NSW Australia 中国地震局地壳应力研究所

对完整岩石力学机制的研究有助于更好地理解与屈服有关的应力-应变关系。屈服准则研究方法包括基于实验数据分析和基于微观力学的研究。屈服数学理论的研究目标是对应力和应变关系的理论描述和对弹塑性界限的识别。本文主要研究完整岩... 详细信息

对完整岩石力学机制的研究有助于更好地理解与屈服有关的应力-应变关系。屈服准则研究方法包括基于实验数据分析和基于微观力学的研究。屈服数学理论的研究目标是对应力和应变关系的理论描述和对弹塑性界限的识别。本文主要研究完整岩石在不同尺度上的屈服。从Weibull理论可知,岩石强度随尺度增大而减少,这已经通过单轴压缩强度(UCS)的Hoek-Brown方程得到证实。然而,围压能改变岩石强度及屈服。因此,本文利用直径为50mm和96mm的圆柱形砂岩样品在不同围压作用下的压缩实验来研究不同尺度下的岩石屈服,从实验中提取不同尺度下的屈服初始点并描述屈服面,最终给出简单数学形式的屈服准则。

关键词：屈服准则岩石强度应力-应变关系 Weibull理论实验数据分析单轴压缩强度力学机制微观力学

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effect of Gd3+-,Pr3+-or Sm3+-substituted cobalt-zinc ferrite on photodegradation of methyl orange and cytotoxicity tests

引用

Journal of Rare Earths 2019年第12期37卷 1288-1295页

作者： seyed Mahdi Peymani-Motlagh Nadia Moeinian Mojtaba Rostami Mahdi Fasihi-Ramandi Ali Sobhani-Nasab Mehdi Rahimi-Nasrabadi Mohammad Eghbali-Arani Mohammad Reza Ganjali Teofil Jesionowski Hermann Ehrlich Mohammad Ali Karimi Narges Ajami Department of Chemistry Imam Hossein UniversityTehran 16765-3454Iran Department of Chemistry Payame Noor UniversityTehran 19395-4697Iran Young Researchers and Elite Club Karaj BranchIslamic Azad UniversityKaraj ***Iran Molecular Biology Research Center Systems Biology and Poisoning InstituteBaqiyatallah University of Medical SciencesTehran ***Iran Social Determinants of Health(SDH)Research Center Kashan University of Medical SciencesKashan ***Iran Core Research Lab Kashan University of Medical SciencesKashan ***Iran Faculty of Pharmacy Baqiyatallah University of Medical SciencesTehran 195163759Iran Department of Physics University of KashanKashan ***Iran Center of Excellence in Electrochemistry Faculty of ChemistryUniversity of TehranTehran ***Iran Institute of Chemical Technology and Engineering Faculty of Chemical TechnologyPoznan University of TechnologyPoznan 60965Poland Institute of Electronic and Sensor Materials TU Bergakademie FreibergFreiberg 09599Germany

Gd3+-,Pr3+-or Sm3+-doped Co-Zn(Co0.5Zn0.5Fe2 O4)magnetic ferrites(i.e.,Co0.5Zn0.5Gd0.1Fe1.9O4,Co0.5Zn0.5Pr0.1Fe1.9O4 and Co0.5Zn0.5Sm0.1Fe1.9O4)were prepared using a facile sol-gel approach,and the structure,surface morphology and chemical composition of the products were studied by means of scanning electron microscopy(SEM),energy dispersive X-ray analysis(EDX),X-ray diffraction(XRD),UVvisible diffuse reflectance spectroscopy(DRS),photoluminescence(PL)spectroscopy,Fourier transform infrared spectroscopy(FT-IR)and vibrating sample magnetometer(VSM)*** patterns show the Co-Zn product is composed of cubic spinel phases with few impurities or secondary phases,and the average crystallite sizes of the samples are determined to be approximately^51—80,~99—181,~68—103 and^83—133 *** the coercivity and remnant and saturation magnetizations,evaluated by vibrating sample magnetometer(VSM),are found to increase linearly with the incorporation of Gd3+,Pr3+and Sm3+in the product *** CO1-xZnxFe2-yRyO4 photocatalyst sample is found to display a red shift in its absorption,and exhibits outstanding photocatalytic effects in the degradation of MO under ultraviolet(UV)*** is attributed to the reduction of the band gap of cobalt-zinc ferrite due to the presence of rare earth *** in vitro evaluations of the cytotoxic effects of the synthesized nanoparticles were performed on a HeLa cell line.

关键词： Magnetic ferrite Rare earth ions Photocatalyst Cytotoxicity Sol-gel

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A novel approach for detection of deception using Smoothed Pseudo Wigner-Ville Distribution (SPWVD)

引用

Journal of Biomedical Science and Engineering 2013年第1期6卷 8-18页

作者： Elias Ebrahimzadeh seyed Mohammad Alavi Ahmad Bijar Alireza Pakkhesal Department of Biomedical Engineering Shahed University Tehran Iran Faculty of Engineering Islamic Azad University South Tehran Branch Tehran Iran Faculty of Information and Communication Technology Engineering Imam Hossein University Tehran Iran

For many years, the uncertainty of lie-detection systems has been one of the concerns of defense related agencies. Clearly the results of these systems must be generalized by a high value of accuracy to be acceptable by judicial systems. In this paper, a new method based on P300-based component has been proposed for lie-detection. In this regard, the test protocol is designed based on Odd-ball paradigm concealed information recognition. This test was done on 32 people and their brain signals were acquired. After preprocessing, the classic features are extracted from each single trial. After that, time-frequency (TF) transformation is applied on the sweeps and TF features are produced thereupon. Then, the best combinational feature vector is selected in order to improve classifier accuracy. Finally, Guilty and Innocent persons are classified by KNN and MLP. We found that combination of Time-Frequency and Classic features have better ability to achieve higher amount of accuracy. The obtained results show that the proposed method can detect deception by the accuracy of 89.73% which is better than other previously reported methods.

关键词： Lie-Detection Electroencephalography (EEG) P300 Component Odd-Ball Paradigm Time-Frequency Transform

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

女孤收容所,汉瑟尔,伊朗

引用

世界建筑 2020年第10期 76-81,137页

作者：无 seyed hossein Hejrati Mahshid Ghorbani Soroush Majidi(摄影) Tahmineh Monzavi(摄影) Aidin Gilandoost(摄影) Fati Rezaei(摄影) 天妮(译) ZAV建筑师事务所不详

“不适宜”即“未完成”为了应对财政层面对项目的限制,我们采用了一种简朴、坦率的构造。精简掉了所有“不适宜”的多余修饰和装饰层。“受压制”即“无拘束”对于女孤,在像汉瑟尔这样由男性主导的宗教城市中,很难行使自主选择生活方... 详细信息

“不适宜”即“未完成”为了应对财政层面对项目的限制,我们采用了一种简朴、坦率的构造。精简掉了所有“不适宜”的多余修饰和装饰层。“受压制”即“无拘束”对于女孤,在像汉瑟尔这样由男性主导的宗教城市中,很难行使自主选择生活方式的权利。基于对现状的判断,庇护所采用了内向型的建构来回应对少女安保问题的关注。我们利用阳台外侧手动操作的帷幔,将项目的立面转变为一个可以根据女孩的需求及意愿关闭、或面向城市开启的媒介。女孩在学习如何操作这座建筑的同时,也在生活中行使着自己有限的权利。

关键词：自主选择手动操作装饰层收容所庇护所无拘束内向型男性主导

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Role of cytomegalovirus on the maturation and function of monocyte derived dendritic cells of liver transplant patients

引用

World Journal of Transplantation 2016年第2期6卷 336-346页

作者： Mohammad hossein Karimi Afsoon Shariat Ramin Yaghobi Talat Mokhtariazad seyed Mohammad Moazzeni Shiraz Trans-plant Research Center Shiraz University of Medical Sciences Department of Microbiology Faculty of Basic SciencesKazerun BranchIslamic Azad University College of Basic Sciences Tehran Science and Research BranchIslamic Azad University Department of Virology School of Public HealthTehran University of Medical Sciences Department of Immunology Faculty of Medical SciencesTarbiat Modarres University

AIM: To study the impact of association between cytomegalovirus(CMV) pathogenesis with dendritic cell(DC) maturation and function was evaluated in CMV reactivated liver transplanted patients in comparing with non-reactivated ones, and healthy controls. METHODS: Monocyte derived dendritic cells(Mo DCs) was generated from collected ethylenediaminetetraacetic acid-treated blood samples from patient groups and controls. In these groups, expression rates and mean fluorescent intensity of DC markers were evaluated using flowcytometry technique. Secretion of cytokines including: interleukin(IL)-6, IL-12 and IL-23 were determined using enzyme-linked immunosorbent assay methods. The gene expression of toll-like receptor 2(TLR2), TLR4 and IL-23 were analyzed using in-house real-time polymerase chain reaction ***: Results have been shown significant decreases in: Expression rates of Mo DC markers including CD83, CD1 a and human leukocyte antigen DR(HLA-DR), the mean fluorescence intensitys for CD1 a and HLA-DR, and secretion of IL-12 in CMV reactivated comparedwith non-reactivated liver transplanted patients. On the other hand, significant increases have been shown in the secretions of IL-6 and IL-23 and gene expression levels of TLR2, TLR4 and IL-23 from Mo DCs in CMV reactivated compared with non-reactivated liver transplanted recipients. CONCLUSION: DC functional defects in CMV reactivated recipients, such as decrease in expression of DC maturation markers, increase in secretion of proinflammatory cytokines, and TLRs can emphasize on the importance of CMV infectivity in development of liver rejection in transplanted patients.

关键词： Cytomegalovirus Dendritic cells Liver transplantation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A comparative study on the anti-bacterial effect of Echinops persicus, Cardamine uliginosa and Vaccaria oxyodontha Boiss on Staphylococcus aureus and Escherichia coli bacteria in vitro

引用

TMR Integrative Medicine 2022年第6期6卷 1-7页

作者： Maryam Soori Bibi Zahra Nejad Ghaffar Sedighe Soleimani Rahele Bahrami seyed hossein Hashemi hossein Abbaspour Hamid Hashemi-Moghaddam Department of Biochemistry Hamedan BranchIslamic Azad UniversityHamedan 15743-65181Iran Department of Biochemistry Shoushtar BranchIslamic Azad UniversityShoushtar 14778-93855Iran Department of Biology Damghan BranchIslamic Azad UniversityDamghan ***Iran Department of nuclear engineering Olom Tahghighat branchIslamic Azad UniversityTehran ***Iran Department of Chemistry Damghan BranchIslamic Azad UniversityDamghan ***Iran.

Background:Medicinal herbs have always been closely associated with human beings,and no one deny their medicinal effects and *** are over 7,500 plant species in the rich flora of *** study,intends to investigate the anti-bacterial properties of three different plant species from Iranian flora,including Echinops persicus,Cardamine uliginosa,and Vaccaria oxyodontha *** and methods:This cross-sectional study was performed after confirmation and identification of collected *** plants were dried in the shade for *** the methanol extract of these plants was extracted by the classical extraction *** plants’antimicrobial effects of the plants were evaluated by agar disk diffusion,minimum inhibitory concentration,and minimum bactericidal *** mentioned plants’anti-bacterial activity was compared with the antibiotic discs of gentamicin(10 mg)and vancomycin(30 mg).SPSS software v20 was used for data analysis of Kruskal-Wallis and Dunn’s tests(P<0.05).Results:The lowest minimum inhibitory concentration obtained from the methanol extract of Cardamine uliginosa on standard strains of Staphylococcus aureus and Escherichia coli at 15.62 mg/mL for methanol extracts of Echinops persicus and Vaccaria oxyodontha Boiss on *** and *** at 31.25 mg/mL and 125 mg/mL,*** highest diameter of inhibition zone caused by methanol extract of Cardamine uiliginosa was against *** and *** with an inhibition zone of 23.9±0.29 mm and 20.4±0.43 mm,*** with the antibiotics gentamicin and vancomycin,the Cardamine uliginosa showed a stronger inhibitory effect(P<0.05).Conclusion:Echinops persicus,Cardamine uliginosa,and Vaccaria oxyodontha Boiss have anti-bacterial *** anti-bacterial property of Cardamine uilignosa is higher than the other two herbal medicine.

关键词： minimum inhibitory concentration Echinops persicus Cardamine uliginosa Vaccaria oxyodontha Boiss

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：