Ryuji Takada

Learn More
Rats fed dietary fats rich in 20- and 22-carbon polyenoic fatty acids deposit less fat and expend more energy at rest than rats fed other types of fats. We hypothesized that this decrease in energetic efficiency was the product of: (a) enhanced peroxisomal fatty acid oxidation and/or (b) the up-regulation of genes encoding proteins that were involved with(More)
The influence of dietary lysine on hepatic insulin-like growth factor-I (IGF-I) gene expression and plasma IGF-I level was investigated. Two male 6-wk-old pigs from each of six litters were used. Each littermate was assigned to one of two diets, control or low lysine (LL), that were isoenergetic and similar in protein content and provided 14.3 MJ digestible(More)
A minute volume such as a few hundred nano-litres of gingival crevicular fluid (GCF) will evaporate within one minute at room temperature after collection. In order to investigate the feasibility of a method for noninvasive blood glucose measurement using this fluid, a fabricated GCF-collecting device, and the time-course changes of blood and GCF glucose(More)
Elongation of seminal and lateral roots of rice seedlings was markedly inhibited by high ammonium levels in growth medium. However, high exogenous nitrate concentrations had little inhibitory effect on root growth. The objective of this study was to elucidate the relationship between inhibition of rice root growth induced by high ammonium conditions and(More)
The objectives of this study were to examine the effects of dietary gamma-linolenic acid-enriched oil extracted from fungi on rat body composition and on the various enzyme activities relating to fat metabolism in the liver. The oil contained 25.3 g gamma-linolenic acid/100 g fatty acids. The levels of gamma-linolenic acid-enriched oil in the diets were 0,(More)
We conducted a series of investigations in order to elucidate role of nutritional status in regulating GLUT expression and energy metabolism in porcine muscle. Firstly, the role of mild undernutrition in regulating muscle GLUT gene expression and function was studied in growing pigs (3 wk of age) on a high (H) or low (L) food intake (H = 2L) at 35°C or(More)
Consumption of nonprotein energy is reported to promote nitrogen retention (the protein-sparing effect). The present study was conducted to determine whether consumption of medium-chain triglycerides (MCT), long-chain triglycerides (LCT) or carbohydrate by unfed rats would exert different protein-sparing effects over 48 h. The amounts of MCT, LCT and(More)
The role of thromboxane on norepinephrine release mediated by the presynaptic alphareceptor is studied in conscious rabbits. Intravenous administration of yohimbine, a preferential alpha-2 receptor antagonist increases mean arterial pressure (MBP) by 10 to 15%; the plasma norepinephrine concentration by 71 to 125%. OKY-046, a specific thromboxane synthetase(More)
  • 1