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Journal of Biorheology最新文献

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Dielectric relaxation of aqueous solutions of maltotriose 麦芽糖糖水溶液的介电弛豫
Journal of Biorheology Pub Date : 2017-01-01 DOI: 10.17106/JBR.31.16
K. Yoshiba, K. Soga
{"title":"Dielectric relaxation of aqueous solutions of maltotriose","authors":"K. Yoshiba, K. Soga","doi":"10.17106/JBR.31.16","DOIUrl":"https://doi.org/10.17106/JBR.31.16","url":null,"abstract":"The molecular motions in two aqueous maltotriose solutions with different weight fractions (85% and 50%) were investigated by the dielectric relaxation and differential scanning calorimetry. The 85% solution shows two relaxation modes with the different frequency and temperature dependences in the dielectric relaxation curves. The lower frequency mode is due to the hydrated maltotriose. This mode strongly depends on temperature, indicating the structural relaxation of the solution. The higher frequency mode shows an Arrehnius type of temperature dependence ascribed to the hydrated water molecules. The 50% maltotriose solution has another relaxation mode of ice Ih crystal in addition to these relaxation modes. The temperature dependences of both solutions were compared to interpret the molecular motions on the basis of the phase behaviors.","PeriodicalId":39272,"journal":{"name":"Journal of Biorheology","volume":"31 1","pages":"16-20"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.17106/JBR.31.16","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68196310","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
Preparation of gelatin scaffold and fibroblast cell culture 明胶支架的制备及成纤维细胞的培养
Journal of Biorheology Pub Date : 2017-01-01 DOI: 10.17106/JBR.31.2
Y. Takagi, Susumu Tanaka, Syo Tomita, Shuri Akiyama, Y. Maki, Takao Yamamoto, Masumi Uehara, T. Dobashi
{"title":"Preparation of gelatin scaffold and fibroblast cell culture","authors":"Y. Takagi, Susumu Tanaka, Syo Tomita, Shuri Akiyama, Y. Maki, Takao Yamamoto, Masumi Uehara, T. Dobashi","doi":"10.17106/JBR.31.2","DOIUrl":"https://doi.org/10.17106/JBR.31.2","url":null,"abstract":"A gelatin gel sheet was UV-irradiated to raise the gel melting temperature Tm. Three second of Tm increased proportionally to irradiation time tUV. The sheet of which Tm was larger than the culture temperature 37°C was used as a cell culture scaffold. Human fibroblast cells WI-38 adhered to the sheet and dug deeply into it regardless of tUV, while cancer cells WI-38-VA-13 formed spheroids and did not adhere to the sheet individually at high UV dose. The cell selectivity of the scaffold could be used for biological and medical studies.","PeriodicalId":39272,"journal":{"name":"Journal of Biorheology","volume":"31 1","pages":"2-5"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.17106/JBR.31.2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68196369","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: 1
Effects of urea and NaCl on the fibrinogen cryogelation 尿素和NaCl对纤维蛋白原冷冻的影响
Journal of Biorheology Pub Date : 2017-01-01 DOI: 10.17106/JBR.31.12
Y. Toyama, M. Shimizu, M. Ochiai, T. Dobashi
{"title":"Effects of urea and NaCl on the fibrinogen cryogelation","authors":"Y. Toyama, M. Shimizu, M. Ochiai, T. Dobashi","doi":"10.17106/JBR.31.12","DOIUrl":"https://doi.org/10.17106/JBR.31.12","url":null,"abstract":"Fibrinogen is converted to fibrin monomer and forms a three-dimensional gel network in a step wise manner by the enzymatic action of thrombin (thrombin-induced fibrin gelation). On the other hand, when a fibrinogen solution is incubated at low temperatures (e.g. below 4°C), it is converted to a gel without thrombin. The fibrinogen gel induced by lowering temperature is called “cryogel” and is closely related to some diseases. However, the mechanism of fibrinogen cryogelation has not been understood yet. In this study, the effects of urea and NaCl on fibrinogen cryogelation and thrombin-induced fibrin gelation have been studied turbidimetrically. The addition of urea retarded both gelation, and the extent of retardation increased with increasing the concentration of urea. The effects of urea on fibrinogen cryogelation were much larger than those on thrombin-induced fibrin gelation, and fibrinogen cryogelation was completely inhibited by the addition of 150 mM urea. The addition of NaCl retarded fibrinogen cryogelation with increasing the concentration of NaCl. By contrast, the effects of NaCl on thrombin-induced fibrin gelation were only limited. Based on the experimental results, the contributions of hydrogen and ionic bonds to each gelation are discussed.","PeriodicalId":39272,"journal":{"name":"Journal of Biorheology","volume":"31 1","pages":"12-15"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68196298","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: 1
A method and preliminary results of in silico computer simulation for the formation of mix thrombi with platelet and fibrin 一种血小板与纤维蛋白混合形成血栓的计算机模拟方法及初步结果
Journal of Biorheology Pub Date : 2017-01-01 DOI: 10.17106/JBR.31.30
Shinichi Goto, N. Tamura, K. Ayabe, E. Kato, Terumitsu Hasebe, S. Takagi, Yota Kawamura, Shinya Goto
{"title":"A method and preliminary results of in silico computer simulation for the formation of mix thrombi with platelet and fibrin","authors":"Shinichi Goto, N. Tamura, K. Ayabe, E. Kato, Terumitsu Hasebe, S. Takagi, Yota Kawamura, Shinya Goto","doi":"10.17106/JBR.31.30","DOIUrl":"https://doi.org/10.17106/JBR.31.30","url":null,"abstract":"Formation of thrombi is a complex biological event involving platelets and coagulation cascades. The both have been well investigated individually. However, the interrelationship between them is still to be elucidated. The recent progresses in computer technology may allow us to simulate complex biological phenomena in silico. Here we report a novel method to reproduce the complex system of the interrelationship between platelet and coagulation by combining the previous simulation model of platelet adhesion with the model of coagulation cascade. We have reproduced the biological process of thrombus growth occurring in the mice cremasteric artery induced by endothelial injury by FeCl3 with our newly developed computer simulator.","PeriodicalId":39272,"journal":{"name":"Journal of Biorheology","volume":"31 1","pages":"30-34"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68196681","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: 3
Transitions in the in-vivo visualisation of renal physiology 体内肾脏生理可视化的转变
Journal of Biorheology Pub Date : 2017-01-01 DOI: 10.17106/JBR.31.40
H. Nakamoto
{"title":"Transitions in the in-vivo visualisation of renal physiology","authors":"H. Nakamoto","doi":"10.17106/JBR.31.40","DOIUrl":"https://doi.org/10.17106/JBR.31.40","url":null,"abstract":"","PeriodicalId":39272,"journal":{"name":"Journal of Biorheology","volume":"31 1","pages":"40-43"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68197043","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
Rheological properties in solutions of wormlike micelle composed of lysophosphatidylcholine/phosphatidylcholine mixture 溶血磷脂酰胆碱/磷脂酰胆碱混合物组成的虫状胶束溶液的流变性能
Journal of Biorheology Pub Date : 2017-01-01 DOI: 10.17106/JBR.31.44
Paphawee Nantarajit, Natdanai Fafaungwithayakul, Natsuda Vichakacharu, S. Matsukawa
{"title":"Rheological properties in solutions of wormlike micelle composed of lysophosphatidylcholine/phosphatidylcholine mixture","authors":"Paphawee Nantarajit, Natdanai Fafaungwithayakul, Natsuda Vichakacharu, S. Matsukawa","doi":"10.17106/JBR.31.44","DOIUrl":"https://doi.org/10.17106/JBR.31.44","url":null,"abstract":"We have elucidated the heat induced formation of wormlike micelles in the mixture solutions containing two different geometric amphiphiles of lysophosphatidylcholine (LPC) and phosphatidylcholine (PC), where LPC and PC have one and two alkyl chains as hydrophobic groups, respectively. The mixture solutions showed the increases in viscosity and transparency by heating, and showed the highest viscosity at the ratio of LPC/PC = 1.67, suggesting the formation of long wormlike micelles attained by the average cpp around 0.5 favorable. From the dynamic rheological measurements, it was found that the elasticity was proportional to the square of total concentration of LPC and PC, indicating the existence of entanglement among long wormlike micelles. Other mixture solutions seem to be mixtures of spherical, lamellar and wormlike micelles with different sizes judging from the viscoelastic behavior and transparency, where the sizes changed reversibly with the temperature changes.","PeriodicalId":39272,"journal":{"name":"Journal of Biorheology","volume":"31 1","pages":"44-49"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.17106/JBR.31.44","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68197150","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: 1
Assessment of erythrocyte deformability in an obese case of chronic thromboembolic pulmonary hypertension 慢性血栓栓塞性肺动脉高压肥胖患者红细胞变形能力的评估
Journal of Biorheology Pub Date : 2017-01-01 DOI: 10.17106/JBR.31.57
Shunsuke Yoda, T. Yokoyama, Mitsuhiro Fukata, T. Arita, K. Odashiro, T. Maruyama, K. Akashi
{"title":"Assessment of erythrocyte deformability in an obese case of chronic thromboembolic pulmonary hypertension","authors":"Shunsuke Yoda, T. Yokoyama, Mitsuhiro Fukata, T. Arita, K. Odashiro, T. Maruyama, K. Akashi","doi":"10.17106/JBR.31.57","DOIUrl":"https://doi.org/10.17106/JBR.31.57","url":null,"abstract":"Erythrocyte deformability plays a key role in pulmonary microcirculation, which raised the hypothesis that erythrocyte deformability is impaired in pulmonary thromboembolism (PTE) and subsequent chronic thromboembolic pulmonary hypertension (CTEPH). We encoun-tered a case of PTE followed by CTEPH and investigated erythrocyte deformability by our specified filtration technique to test this hypothesis. Erythrocyte deformability was normal before but was impaired after the onset of PTE. It was restored partially in the stage of CTEPH. This case taught us that erythrocyte deformability is impaired and that this impairment relates to the hemodynamics of pulmonary microcirculation and pathophysiology of PTE and CTEPH.","PeriodicalId":39272,"journal":{"name":"Journal of Biorheology","volume":"31 1","pages":"57-60"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68196825","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
For the “Special Issue on the 40th Annual Meeting of Japanese Society of Biorheology” 《日本生物流变学会第40届年会特刊》
Journal of Biorheology Pub Date : 2017-01-01 DOI: 10.17106/JBR.31.29
T. Ohashi
{"title":"For the “Special Issue on the 40th Annual Meeting of Japanese Society of Biorheology”","authors":"T. Ohashi","doi":"10.17106/JBR.31.29","DOIUrl":"https://doi.org/10.17106/JBR.31.29","url":null,"abstract":"","PeriodicalId":39272,"journal":{"name":"Journal of Biorheology","volume":"31 1","pages":"29-29"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68196476","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
For the Special Issue “Structural formation of biological materials and their use in science and technology” 特刊“生物材料的结构形成及其在科技中的应用”
Journal of Biorheology Pub Date : 2017-01-01 DOI: 10.17106/JBR.31.1
R. Kita
{"title":"For the Special Issue “Structural formation of biological materials and their use in science and technology”","authors":"R. Kita","doi":"10.17106/JBR.31.1","DOIUrl":"https://doi.org/10.17106/JBR.31.1","url":null,"abstract":"","PeriodicalId":39272,"journal":{"name":"Journal of Biorheology","volume":"31 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68196290","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
Rheological characterization of thermal phase behavior of anionic lipid DMPG dispersions 阴离子脂质DMPG分散体热相行为的流变学表征
Journal of Biorheology Pub Date : 2017-01-01 DOI: 10.17106/JBR.31.6
S. Fujii
{"title":"Rheological characterization of thermal phase behavior of anionic lipid DMPG dispersions","authors":"S. Fujii","doi":"10.17106/JBR.31.6","DOIUrl":"https://doi.org/10.17106/JBR.31.6","url":null,"abstract":"We study thermo-structural behavior of anionic lipid 1,2-dimyristoyl-sn-glycero-3-phosphoglycerol (DMPG) dispersed systems. Continuous chain-melting transition of DMPG induces anomalous intermediate phase between gel and fluid phases. We found that the intermediate phase can be divided into two domains; anisotropic phase with high orientational order and isotropic viscous phase. Anisotropic phase would be identified to perforated lamellae or bicelle formed by rupturing the perforated vesicles under shear. Isotropic viscous phase, on the other hand, might be identified to densely packed perforated vesicle dispersions formed by rearranging extended bilayer membranes.","PeriodicalId":39272,"journal":{"name":"Journal of Biorheology","volume":"113 1","pages":"6-11"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68196894","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: 2
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