2014 18th National Biomedical Engineering Meeting最新文献

Developing a portable pulse oximeter for telemetry application 开发一种便携式遥测脉搏血氧仪

2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026379

Kamran Shiraliyev, O. Sahin

引用次数: 0

Investigation of chemoattractant properties of various molecules in three-dimensional microenvironment to metastasis of breast cancer cells to bone 三维微环境中不同分子对乳腺癌细胞骨转移的化学引诱特性研究

2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026344

Gulben Avsar, B. Zeybek, Aylin Sendemir-rkmez

{"title":"Investigation of chemoattractant properties of various molecules in three-dimensional microenvironment to metastasis of breast cancer cells to bone","authors":"Gulben Avsar, B. Zeybek, Aylin Sendemir-rkmez","doi":"10.1109/BIYOMUT.2014.7026344","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2014.7026344","url":null,"abstract":"Metastasis is the most destructive step of cancer and it is defined as spreading of tumor cells from the primary tumor cite to other organs. Because of the fact that the molecular and cellular mechanisms underlying bone metastasis have not been yet understood, the development of an effective therapy is not possible. Chemo-attractant properties of some molecules in the bone extracellular matrix has been considered among possible reasons of metastasis. In this study, collagen scaffolds were produced by electrospinning method mimicking natural porous bone structure to understand possible chemo-attractant molecules that are common in bone metastases of metastatic breast cancer cells. MCF-7 metastatic breast cancer cells' adhesion kinetics were studied on the surfaces and scaffolds which are functionalized by osteopontin, collagen type I and hydroxyapatite. Three dimensional chemotaxis slides were used for visualizing the migration. Both cell adhesion kinetics and migration results showed that collagen type 1 and hydroxyapatite combination was more effective as a chemo-attractant than only collagen type 1 in the bone metastasis of breast cancer cells. Osteopontin caused migration and cell adhesion relatively more than collagen type I; and it was showed that this protein is an effective chemo-attractant in the bone metastasis of breast cancer cells. It was shown that micro environments of the bone minerals play an important role in the formation of metastatic niche because of their support to the development and colonization of tumor cells in the bone.","PeriodicalId":428610,"journal":{"name":"2014 18th National Biomedical Engineering Meeting","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128305871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sensitive prediction of bacterial type IV effectors IV型细菌效应剂的敏感性预测

2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026341

K. Açıcı, Duygu Dede Sener, H. Oğul

引用次数: 0

A dual band antenna design for implantable medical devices 一种用于植入式医疗设备的双频天线设计

2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026386

Damla Alptekin, N. G. Gencer, F. Kucukdeveci

引用次数: 2

White matter changes in thalamic stroke 丘脑卒中中白质的变化

2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026376

Sami Yumerhodzha, D. G. Duru, A. Duru, N. Bebek

{"title":"White matter changes in thalamic stroke","authors":"Sami Yumerhodzha, D. G. Duru, A. Duru, N. Bebek","doi":"10.1109/BIYOMUT.2014.7026376","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2014.7026376","url":null,"abstract":"Stroke as one the most significant health problems can be diagnosed by clinical symptoms and medical imaging modalities. Stroke patients mostly suffer from white matter changes, so the detection of any change in the white matter is important in that the white matter is directly affecting the brain functions. Diffusion tensor imaging, which allows the determination of the microstructural properties of white matter noninvasively yields to extract the tissue changes due to pathology. This study focuses on the brain areas of patients affected by thalamic stroke using the brain fiber tracts' distribution which allows the quantitative tracking of white matter changes. Besides the comparison of the stroke patients with the healthy control group, variations in white matter volume and the fiber tract distribution between the right and left thalamic stroke cases are also computed in a voxel-wise manner. The statistical analyses result that in thalamic stroke patients, the total number of voxels with white matter and the total volume of white matter have been decreased with respect to controls. The developed spatial masks aid to investigate the structural properties of the stroke whether it's in the right or left side of thalamus. Results allow one to discuss the voxel statistics of thalamic stroke cases and subjectwise comparison of the same fibers.","PeriodicalId":428610,"journal":{"name":"2014 18th National Biomedical Engineering Meeting","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116013694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of ceria nanoparticles synthesis on their cytotoxicity against CaCo2 Cells in vitro 纳米二氧化铈合成对体外抗CaCo2细胞毒性的影响

2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026355

G. Yelken

引用次数: 0

MRI analyses indicate non-uniform human muscle tissue deformations and confirm theoretically anticipated sarcomere length heterogeneity, in vivo MRI分析表明，人体肌肉组织变形不均匀，并证实了理论上预期的肌节长度在体内的异质性

2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026392

Uluç Pamuk, A. Karakuzu, Pinar Akyazi, B. Acar, C. Ozturk, C. Yucesoy

引用次数: 0

Fast phosphorus MR spectroscopic imaging of human brain using compressed sensing 基于压缩传感的人脑快速磷核磁共振光谱成像

2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026389

M. Yıldırım, G. H. Hatay, E. Okeer, K. Nicolay, B. Hakyemez, E. Ozturk‐Isik

引用次数: 0

Computational fluid dynamics simulations based on time-of-flight magnetic resonance angiography 基于飞行时间磁共振血管造影的计算流体动力学模拟

2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026390

Ahmet Topkara, E. Okeer, B. Hakyemez, E. O. Isik, Bahadir Olcay

引用次数: 0

Preprocessing effects on group independent component analysis of fMRI data 预处理对fMRI数据组独立分量分析的影响

2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026333

Duygu Sahin, A. Duru, A. Ademoglu

{"title":"Preprocessing effects on group independent component analysis of fMRI data","authors":"Duygu Sahin, A. Duru, A. Ademoglu","doi":"10.1109/BIYOMUT.2014.7026333","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2014.7026333","url":null,"abstract":"Functional connectivity networks (FCN) might differ due to tissue loss in brain. Spatially independent components can be gathered with the group independent component analysis, which is one of the methods that can extract FCNs from fMRI data. Comparison of spatial or temporal results of group-wise data is possible for the differences in parameters of the preprocessing or processing steps. In this study, after the fMRI data, which is taken from Alzheimer's disease and mild cognitive impairment patients during an oddball paradigm, is preprocessed by two different methods; a group independent component analysis is done. Both of the preprocessing methods include slice time correction, motion correction, coregistration, normalization and spatial smoothing while they differ in normalization step as the chosen algorithm varies. After the preprocessing, group independent component analysis is applied with the same parameters for both of the methods. As a consequence, the effect of the difference between the two preprocessing methods are investigated. Depending on the results, stability, power spectrums and spatial maps of the components show an alteration by the algorithm used in normalization step.","PeriodicalId":428610,"journal":{"name":"2014 18th National Biomedical Engineering Meeting","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133899174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0