Kagoshima Prefectural College

Kagoshima-shi, Japan

Kagoshima Prefectural College

Kagoshima-shi, Japan

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PubMed | Kagoshima Prefectural College, Kagoshima University and Japan National Agriculture and Food Research Organization
Type: | Journal: Comparative biochemistry and physiology. Part A, Molecular & integrative physiology | Year: 2016

The aim of this study was to examine the effects of first exogenous nutrients on the mRNA levels of muscle atrophy F-box (atrogin-1/MAFbx) and glucose transporters (GLUTs) in the skeletal muscles of newly hatched chicks with no feed experience. In experiment 1, newly hatched chicks had free access to feed or were fasted for the first 24h. The chicks having free access to feed for the first 24h increased their body weight and had decreased atrogin-1/MAFbx mRNA levels in their sartorius and pectoralis major muscles compared with the fasted chicks. In experiment 2, newly hatched chicks received a single feed via intubation into the crop. Three hours after intubation, levels of atrogin-1/MAFbx mRNA in the sartorius muscle were decreased whereas the plasma insulin concentration and phosphorylated AKT levels in the sartorius muscle were increased. In addition, the mRNA levels of GLUT1 and GLUT8 were increased in the sartorius muscle after the intubation. However, in the pectoralis major muscle, AKT phosphorylation and levels of atrogin-1/MAFbx, GLUT1 and GLUT8 mRNA were not affected 3h after intubation. The first exogenous nutrients increased the level of phosphorylated AKT in the sartorius muscle of newly hatched chicks, possibly because of the decrease in atrogin-1/MAFbx mRNA levels. Furthermore, the sartorius muscle in newly hatched chicks appeared to be more susceptible to the first feed compared with the pectoralis major muscle.


Iyota H.,Kagoshima Prefectural College | Ikeda N.,Fukuoka Women's University | Krastev R.,Reutlingen University
Journal of Colloid and Interface Science | Year: 2011

Thermodynamic treatment of thin liquid films in Part III of this series was applied to foam films stabilized by sodium dodecyl sulfate. Miscibility of sodium chloride and sodium dodecyl sulfate in the adsorbed films at the film surfaces and transition between the black films were studied by measuring film thickness and contact angle. A discontinuous change in the thickness and a break on the contact angle vs. concentration curve appeared at the transition. Judging from the phase diagram of adsorption, sodium chloride and sodium dodecyl sulfate are a little miscible in the adsorbed films. The miscibility was ascribed to specific interaction between sodium ion and dodecyl sulfate ion in the adsorbed films. The miscibility in an adsorbed film was compared between the film surface and meniscus and between the common black and Newton black films. © 2011 Elsevier Inc.


Iyota H.,Kagoshima Prefectural College | Tomimitsu T.,Kagoshima Prefectural College | Aratono M.,Kyushu University
Colloid and Polymer Science | Year: 2010

The adsorption, micelle formation, and coagel-particle formation of sodium dodecyl sulfate in the presence of calcium chloride were studied from the viewpoint of mixed adsorption and aggregate formation of inorganic salt and surfactant. Judging from the phase diagrams of adsorption and aggregate formation, negative azeotropy takes place in the mixed adsorption and aggregate formation of calcium chloride and sodium dodecyl sulfate due to electrostatic attraction between calcium and dodecyl sulfate ions. The miscibility of calcium chloride and sodium dodecyl sulfate in the oriented states increases in the order, particle > adsorbed film > micelle. The difference in the miscibility was ascribed to the difference in geometry between the adsorbed film and micelle and to the interaction between bilayer surfaces in the particle. The particle-micelle equilibrium was thermodynamically considered by using the equilibrium composition of aggregates. © 2010 Springer-Verlag.


Kurashige K.,Kagoshima Prefectural College | Yanagawa Y.,Okayama University
Journal of Japan Industrial Management Association | Year: 2015

In this paper, we applied a metaheuristic method to a mixed-model assembly line problem for minimizing makespan. In order to calculate the makespan including line stop time, the work progress of semi-finished products needs to be formulated. The formulations become difficult, so the conditions for the assembly line problem increase. Therefore, simulation - step-by-step time processing - is used to check the work progress in complicated mixed-model assembly line problems. However, many repetitive calculations are needed in simulation methods and the metaheuristic method we used required much computational time to solve a problem. Then, we presented the use of approximate expression instead of the formulations of work progress, and used the approximate expression in the first stage and simulation in the last stage.


Iyota H.,Kagoshima Prefectural College
Colloid and Polymer Science | Year: 2012

The adsorption, micelle formation, and salting-out of dodecylammonium chloride in the presence of NaCl were studied from the viewpoint of mixed adsorption and aggregate formation. The surface tension of aqueous solutions of a NaCl-dodecylammonium chloride mixture was measured as a function of the total molality and composition of the mixture. Judging from phase diagrams of mixed adsorption and aggregate formation, NaCl and dodecylam-monium chloride are miscible in the adsorbed film and coagel particle at high NaCl concentrations due to specific (nonelectrostatic) interaction between dodecylamonium ion and the counterion, while they are immiscible in the micelle. The difference in miscibility among the oriented states was ascribed to the difference in geometry among the states and to the interaction between bilayers in a coagel particle. Miscibility and specific interaction are compared between the mixtures of NaCl with dodecylammonium chloride and sodium dodecylsulfate. © Springer-Verlag 2012.


Kurashige K.,Kagoshima Prefectural College | Yanagawa Y.,Kagoshima Prefectural College | Miyazaki S.,Kagoshima Prefectural College | Kameyama Y.,Kagoshima Prefectural College
Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C | Year: 2011

To keep the consumption rate of each part is very important for mixed-model assembly line scheduling in JIT production system. The goal chasing method (GC) and a number of papers have been proposed to achieve the parts usage leveling goal. These methods keep the consumption speed of parts constant as much as possible, and aim to decrease the amount of the stock in pre-process indirectly. In this paper, we set objective function based on the stock in pre-process directly. The function is influenced by different assembly time and delivery cycle among each product. And we have proposed the sequencing method. The method is concept of time-based goal chafing method (TBCG) with consideration in parts delivery cycle. By numerical experiments, effect of proposed method is presented. © 2011 The Japan Society of Mechanical Engineers.


Iyota H.,Kagoshima Prefectural College
Colloid and Polymer Science | Year: 2013

Thermodynamic equations were derived for adsorption at interfaces of spherical films and interaction between interfaces in a film. The dependence of film tension on capillary pressure between external and film-forming phases gave thermodynamic film thickness and the one on pressure difference across the film the distance between the surface of tension for the film and the innermost dividing surface. Curvature dependence of film tension was numerically evaluated by using one of the derived equations. © 2013 Springer-Verlag Berlin Heidelberg.


Arimura E.,Kagoshima Prefectural College | Arimura E.,Kagoshima University | Horiuchi M.,Kagoshima University | Kawaguchi H.,Kagoshima University | And 3 more authors.
European Journal of Nutrition | Year: 2013

Purpose: Dietary protein content is related clinically to the development of diabetic nephropathy. Here, we investigated how dietary protein content (12-24 % energy) within the range used by humans affected renal manifestations including the expressions of genes involved in the renin-angiotensin (RA) system in control and diabetic mice. Moreover, we examined the effects of dietary protein content on HbA1c and urinary glucose. Methods: Control (CT) and leptin receptor-deficient obese (db) mice, 5 weeks old, were fed the diets below. Under ad libitum conditions, mice were fed 12, 18, and 24 % energy from protein (L-, M-, and H-diets) for 8 weeks. Under pair-feeding conditions, db mice were supplied H-diet (db-Hp) to the equivalent energy to that consumed by db-L mice. Renal manifestations and values related to glucose and insulin were examined biochemically and pathologically. Results: Under ad libitum conditions, db mice consumed food and water dose dependently of the dietary protein content, although they were consumed similarly by CT mice. CT-L mice showed lower urinary albumin and kidney weight, in association with lower mRNA levels of angiotensinogen and renin, than CT-H mice. Under pair-feeding conditions, db-L mice showed a lower ratio of kidney/body weight, HbA1C, and urinary glucose, and a higher β-cell distribution rate in the pancreas than db-Hp mice. Conclusions: Low-protein intake in the range used by humans may relieve renal manifestations through the suppressed expression of genes in the renal RA system of CT mice. On the other hand, in db mice, low-protein intake improved hyperglycemia and the renal manifestations of diabetes. © 2012 Springer-Verlag.


PubMed | Kagoshima Prefectural College
Type: Journal Article | Journal: European journal of nutrition | Year: 2013

Dietary protein content is related clinically to the development of diabetic nephropathy. Here, we investigated how dietary protein content (12-24 % energy) within the range used by humans affected renal manifestations including the expressions of genes involved in the renin-angiotensin (RA) system in control and diabetic mice. Moreover, we examined the effects of dietary protein content on HbA1c and urinary glucose.Control (CT) and leptin receptor-deficient obese (db) mice, 5 weeks old, were fed the diets below. Under ad libitum conditions, mice were fed 12, 18, and 24 % energy from protein (L-, M-, and H-diets) for 8 weeks. Under pair-feeding conditions, db mice were supplied H-diet (db-Hp) to the equivalent energy to that consumed by db-L mice. Renal manifestations and values related to glucose and insulin were examined biochemically and pathologically.Under ad libitum conditions, db mice consumed food and water dose dependently of the dietary protein content, although they were consumed similarly by CT mice. CT-L mice showed lower urinary albumin and kidney weight, in association with lower mRNA levels of angiotensinogen and renin, than CT-H mice. Under pair-feeding conditions, db-L mice showed a lower ratio of kidney/body weight, HbA1(C), and urinary glucose, and a higher -cell distribution rate in the pancreas than db-Hp mice.Low-protein intake in the range used by humans may relieve renal manifestations through the suppressed expression of genes in the renal RA system of CT mice. On the other hand, in db mice, low-protein intake improved hyperglycemia and the renal manifestations of diabetes.


PubMed | Kagoshima University and Kagoshima Prefectural College
Type: | Journal: European journal of nutrition | Year: 2016

We previously showed the deleterious effects of increased dietary protein on renal manifestations and glucose metabolism in leptin receptor-deficient (db) mice. Here, we further examined its effects on glucose metabolism, including urinary C-peptide. We also orally administered mixtures corresponding to low- or high-protein diets to diabetic mice.In diet experiments, under pair-feeding (equivalent energy and fat) conditions using a metabolic cage, mice were fed diets with different protein content (L diet: 12% protein, 71% carbohydrate, 17% fat; H diet: 24% protein, 59% carbohydrate, 17% fat) for 15days. In oral administration experiments, the respective mixtures (L mixture: 12% proline, 71% maltose or starch, 17% linoleic acid; H mixture: 24% proline, 59% maltose or starch, 17% linoleic acid) were supplied to mice. Biochemical parameters related to glucose metabolism were measured.The db-H diet mice showed significantly higher water intake, urinary volume, and glucose levels than db-L diet mice but similar levels of excreted urinary C-peptide. In contrast, control-H diet mice showed significantly higher C-peptide excretion than control-L diet mice. Both types of mice fed H diet excreted high levels of urinary albumin. When maltose mixtures were administered, db-L mixture mice showed significantly higher blood glucose after 30min than db-H mixture mice. However, db mice administered starch-H mixture showed significantly higher blood glucose 120-300min post-administration than db-L mixture mice, although both groups exhibited similar insulin levels.High-protein, low-carbohydrate diets deteriorated diabetic conditions and were associated with insufficient insulin secretion in db mice. Our findings may have implications for dietary management of diabetic symptoms in human patients.

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