著者

林 和彦 白崎 芳夫 池田 洋教 立石 哲也 下條 仁士 宮永 豊

出版者

特定非営利活動法人 日本バイオレオロジー学会

雑誌

日本バイオレオロジー学会誌 (ISSN:09134778)

巻号頁・発行日

vol.17, no.2, pp.26-32, 2003-06-30 (Released:2012-09-24)

参考文献数

12

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The mechanical properties of the anterior cruciate ligament (ACL) were investigated. The method of a versatile clamp was designed to holding the femur-ACL-tibia complex (FATC). Twelve porcine FACT specimens were tested at angle 30° and the parallel direction of the ACL. The static tensile and stress relaxation tests were performed with an Instron-type universal testing machine. Differences in stress-strain behavior at the two (slow and fast) deformation rates. The ACL AM (anteromedial) bundle exhibited significant distribution of the deformation at the two deformation rates. Good agreement is obtained using Y. C. Fung's QLV (quasi-linear viscoelastic) theory relationship between theoretical and experimental data.

著者

松浦 豊明 丸岡 真治 川崎 健輔 原 嘉昭

出版者

特定非営利活動法人 日本バイオレオロジー学会

雑誌

日本バイオレオロジー学会誌 (ISSN:09134778)

巻号頁・発行日

vol.17, no.4, pp.1-10, 2003-12-25 (Released:2012-09-24)

参考文献数

15

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The vitreous body is a tenuous gel that contains collagen and hyaluronan. The fraction of the polymer network is only about 1-2%. Thus, about 98-99% of water is sustained within 2% of the polymer network. The vitreous body is located between the lens and the retina that comprises 80% of the overall volume of eye. The functions of the vitreous body are supposed to keep the shape of the eyeball, to absorb the external mechanical shock, to maintain the homoeostasis of the eye, and to regulate the position of the lens. The appearance of fresh vitreous body is transparent, and hence, the vitreous body is considered a uniform tissue. Many studies performed to date have suggested that hyaluronan, which has a coil shape, is uniformly distributed throughout the three-dimensional network of collagen fibers that form the triple helix in the vitreous body. Also, as a macroscopic structure, vitreous body has cistern. Further, the collapse of the vitreous body in the eye may cause many diseases such as posterior vitreous detachment, vitreous bleeding, and retinal detachment. We demonstrate the vitreous substitute that contains hyaluronan and its evaluation.

著者

山口 三郎

出版者

特定非営利活動法人 日本バイオレオロジー学会

雑誌

日本バイオレオロジー学会誌 (ISSN:09134778)

巻号頁・発行日

vol.9, no.3, pp.36-44, 1995-09-30 (Released:2012-09-24)

参考文献数

25

著者

楠瀬 千春 藤井 淑子

出版者

特定非営利活動法人 日本バイオレオロジー学会

雑誌

日本バイオレオロジー学会誌 (ISSN:09134778)

巻号頁・発行日

vol.20, no.2, pp.20-31, 2006-06-25 (Released:2012-09-24)

参考文献数

44

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Typical sponge cakes are made from equal weight of wheat flour, whole eggs and sugar (wheat flour cake). In this paper, wheat flour was replaced with wheat starch (wheat starch cake) while keeping all other aspect of preparation the same. The specific volume of this cake was 20% greater than wheat flour cake. Observation of air cells structure in both cakes by“SEM”showed that continuous globular air cells with thinner cell walls and smaller pores were formed than for wheat flour cakes. Cubes cut from both types of sponge cakes were tested. When both cakes were compressed to 40% of their original thickness by the Creep Meter, only slight differences in recovery of thickness were observed for both types. Further, even after compressing the wheat starch cake cubes to 1/10 of their original thickness, only 90% of the initial thickness was recovered when the load was removed. The formation of such the air cell structure in the wheat starch sponge cake was proposed to proceed as follows. The starch granules in the wheat starch cake batter were distributed uniformly on the surfaces of air bubbles. Then when the sponge cake batter was baked, the air bubbles expanded and granules slightly gelatinized, keeping their same position. Therefore, the air bubbles maintained spherical pore shape, even after cooling. As a result, wheat starch sponge cake structure was shown to have significant elasticity and rheological properties.

著者

前田 信治

出版者

特定非営利活動法人 日本バイオレオロジー学会

雑誌

日本バイオレオロジー学会誌 (ISSN:09134778)

巻号頁・発行日

vol.18, no.1, pp.3-11, 2004-03-25 (Released:2012-09-24)

参考文献数

35

被引用文献数

1

著者

中田 智子 高田 勝美 小森 万希子 鈴木 英弘 菅原 基晃

出版者

特定非営利活動法人 日本バイオレオロジー学会

雑誌

日本バイオレオロジー学会誌 (ISSN:09134778)

巻号頁・発行日

vol.11, no.3, pp.27-33, 1997-09-30 (Released:2012-09-24)

参考文献数

35

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Using the rabbit ear chamber (REC) method, the author compared the effect of hypocapnia and that of normocapnia on cutaneous microcirculation of rabbits. Eight rabbits, weighting 3-4kg, were used for this study, which were anesthetized with pentobarbital and pancuronium. To maintain PaO2 at 100-150mmHg and PaCO2 at 20-25mmHg (HYPOCAPNIC GROUP), they were mechanically ventilated with air-O2 and regulated. After observing the circulation of arteriole during hypocapnia for 15-20 minutes, to induce normocapnia, 100% CO2 was added to the inspired gas stepwise until PaCO2 reached 35-45mmHg (NORMOCAPNIC GROUP). And the circulationof arteriole was observed during normocapnia for 15-20 minutes.No significant changes were observed in the blood pressure, heart rate and pulse pressure. However, significant change was observed in pH. During hypocapnia, the diameter, blood-flow velocity and blood-flow rate of the arterioles were markedly reduced (p<0.05).This study using REC has shown that hypocapnia causes cutaneous microcirculatory changes and increase systemic vascular resistance.

著者

中村 照子

出版者

特定非営利活動法人 日本バイオレオロジー学会

雑誌

日本バイオレオロジー学会誌 (ISSN:09134778)

巻号頁・発行日

vol.17, no.1, pp.29-35, 2003-03-30 (Released:2012-09-24)

参考文献数

21

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Silkworms that feed on mulberry leaves contain a markedly larger amount of amino acids and almost the same amount of unsaturated fatty acids in comparison with mulberry leaves. Silkworms in beginning stage of the fifth period contain a larger amount of those nutrients compared with silkworms in the final stage of it. The rheological characteristics of silkworm blood were remarkably changed during growing process of silkworm, viscosity of silkworm blood in beginning stage of the fifth period is lower than that in the final stage of it. Here, it should be noted that the rheological characteristics of silkworm blood reflect physiolosical circulation of silkworm, suggesting that the physiolosical condition of silkworm in beginning stage of the fifth period is better than that in the final stage of it. Thus, based on these results, it was found that silkworm powder could be a new health food when silkworms in beginning stage of the fifth period were used.

著者

藤島 一郎

出版者

特定非営利活動法人 日本バイオレオロジー学会

雑誌

日本バイオレオロジー学会誌 (ISSN:09134778)

巻号頁・発行日

vol.20, no.2, pp.2-9, 2006-06-25 (Released:2012-09-24)

参考文献数

18

著者

保尊 隆享

出版者

特定非営利活動法人 日本バイオレオロジー学会

雑誌

日本バイオレオロジー学会誌 (ISSN:09134778)

巻号頁・発行日

vol.17, no.3, pp.6-10, 2003-09-30 (Released:2012-09-24)

参考文献数

11

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The plant cell wall is believed to play an important role in resisting gravity force and supporting the plant body under 1 g on earth, as the bones and muscles in an animal body. However, no direct evidence supporting this idea has been provided by space experiments. We analyzed the cell wall properties of rice coleoptiles and Arabidopsis hypocotyls grown under microgravity conditions during the Space Shuttle STS-95 mission. In space, elongation growth of both organs was stimulated and the cell wall extensibility increased. The increase in the wall extensibility in space was almost completely attributable to the increase in the irreversible extensibility. Also, the levels and the molecular size of the certain matrix polysaccharides, such as (1→3), (1→4)-β - glucans in rice coleoptiles and xyloglucans in Arabidopsis hypocotyls, decreased in space. These modifications in the matrix polysaccharides could be involved in increasing the cell wall extensibility, leading to growth stimulation in space. The results suggest that plant seedlings modify the metabolism of the certain cell wall polysaccharides and thus regulate the cell wall extensibility and the growth rate, thereby adapting different gravity conditions.

著者

浅野 新 鈴木 正 尾股 定夫

出版者

特定非営利活動法人 日本バイオレオロジー学会

雑誌

日本バイオレオロジー学会誌 (ISSN:09134778)

巻号頁・発行日

vol.6, no.3, pp.17-25, 1992-09-30 (Released:2014-02-12)

参考文献数

21

著者

本川 達雄

出版者

特定非営利活動法人 日本バイオレオロジー学会

雑誌

日本バイオレオロジー学会誌 (ISSN:09134778)

巻号頁・発行日

vol.4, no.3, pp.1-9, 1990-09-29 (Released:2014-02-12)

参考文献数

31

著者

松尾 崇 桶田 理喜 黒岩 俊彦 東野 文男

出版者

特定非営利活動法人 日本バイオレオロジー学会

雑誌

日本バイオレオロジー学会誌 (ISSN:09134778)

巻号頁・発行日

vol.1, no.2, pp.13-21, 1987-06-30 (Released:2012-09-24)

参考文献数

16

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This study is concerned with hemodynamics of branching flows in the cerebral circulation, which is important in pathogenesis of regional ischemic lesion or hypertensive intracerebral hemorrhage occurring preferentially in the basal ganglia. A series of measurements of energy-loss coefficients at branching sites under laminar steady flow have been conducted in model branches having various geometries. Furthermore, the effect of branching on blood supply to its distal area is described using a lumped-parameter model which was constructed according to the measurement of the vascular architecture in the basal ganglia.It is emphasized that, in circulation in vivo, the branching loss is important where a small artery divides off from a large trunk. It is also indicated that the effect of such branchings may become more significant when the autoreguratory mechanism is abolished under pathological conditions such as CO-poisoning. (J. Jpn. Soc. Biorheol., 1 (2), 77~85, 1987).

著者

一杉 正仁

出版者

特定非営利活動法人 日本バイオレオロジー学会

雑誌

日本バイオレオロジー学会誌 (ISSN:09134778)

巻号頁・発行日

vol.16, no.1, pp.32-33, 2002-03-30 (Released:2012-09-24)

参考文献数

4

著者

磯貝 行秀

出版者

特定非営利活動法人 日本バイオレオロジー学会

雑誌

日本バイオレオロジー学会誌 (ISSN:09134778)

巻号頁・発行日

vol.18, no.1, pp.23-33, 2004-03-25 (Released:2012-09-24)

参考文献数

44

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It has been heard recently that the blood is SARASARA (sensuous expression as a murmur of a brook) or DORODORO (unsensuous syrupy) used as a means to express its fluidity. The mass media uses these as slang expressing in indices of health condition. It is not desirable that some of hemorheology researchers are using these in spite of the definition of these words being not clear. Also, there are no criteria which can set any reliance as numeric expression on the present state. Author want to make reference about the recent advances on clinical hemorheology based on such a back ground in this paper. This paper describes the relation between the viscosity of blood, deformability of blood cells, and microcirculation from the view point of clinical hemorheology. Furthermore, it outlines about the fluidity of blood concerning with metabolism, hormonal function, exercise, cytokines, growth factors, oxidative stress and the leukocyte rheology. Speaking conclusively. being only that the hemorheology makes on a part of pathophysiology we have to take into consideration that there are many factors in the pathogenesis of disease and progress.

著者

五十野 善信

出版者

特定非営利活動法人 日本バイオレオロジー学会

雑誌

日本バイオレオロジー学会誌 (ISSN:09134778)

巻号頁・発行日

vol.20, no.1, pp.17-26, 2006-03-25 (Released:2012-09-24)

参考文献数

13

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Physical properties of mochi cake are reviewed from the perspective viewpoints of microphotometry, linear and nonlinear viscoelastometry. Former two methods may be used for characterization of mochi cake, but they give fairly limited information. The results in sensory evaluation agreed well with the data obtained with nonlinear transient viscorlastomery, suggesting texture may be based on transition from equilibrium to nonequilibrium structure due to large strain.