Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Jun-ichi Yamakita"'
Autor:
Tetsuya Yamamoto, Jun-ichi Yamakita, Zenta Tsutsumi, Toshikazu Hada, Yuji Moriwaki, Sumio Takahashi
Publikováno v:
Annals of Clinical Biochemistry: International Journal of Laboratory Medicine. 37:355-359
Accurate determination of serum and urinary uric acid concentrations is essential for the diagnosis and classification of gout according to uric acid metabolism derangement. Urine and/or serum samples are often kept at either 4°C or 20°C until assa
Autor:
Yuji Moriwaki, Kazuya Higashino, Tetsuya Yamamoto, Sumio Takahashi, Jun-ichi Yamakita, Hiroyuki Ohata, Zenta Tsutsumi, Takashi Nakamo
Publikováno v:
Metabolism. 48:1023-1027
To determine the effect of amino acids on the plasma level and urinary excretion of uric acid and uridine, 200 mL 12% amino acid solution, and 2 weeks later, 100 mL physiological saline solution containing glucagon (1.2 microg/kg weight), was infused
Autor:
Yuji Moriwaki, Zenta Tsutsumi, Jun-ichi Yamakita, Kazuya Higashino, Tetsuya Yamamoto, Sumio Takahashi
Publikováno v:
Biochimica et Biophysica Acta (BBA) - General Subjects. 1427:385-391
To determine whether interferon-gamma affects rat purine catabolic and salvage enzyme activities, rats were injected with interferon-gamma (600000 U/kg, i.p.) and, similarly to a vehicle-injected control group, killed before or after injection at 6,
Autor:
Tetsuya Yamamoto, Zenta Tsutsumi, Jun-ichi Yamakita, Yuji Moriwaki, Sumio Takahashi, Kazuya Higashino
Publikováno v:
Metabolism. 48:520-524
To examine whether fructose and xylitol increase the plasma concentration and urinary excretion of adenosine, as well as uridine and purine bases (hypoxanthine, xanthine, and uric acid), we intravenously administered xylitol and, 2 weeks later, fruct
Autor:
Zenta Tsutsumi, Yuji Moriwaki, Tetsuya Yamamoto, Takashi Nakano, Kazuya Higashino, Sumio Takahashi, Jun-ichi Yamakita
Publikováno v:
Metabolism. 48:338-341
To examine whether glucose increases the plasma concentration of purine bases and uridine, 75 g glucose was administered orally to eight healthy subjects and two patients with hyperuricemia. The plasma concentration of uridine increased by 21%, 25%,
Autor:
Kazuya Higashino, Tetsuya Yamamoto, Jun-ichi Yamakita, Keisai Hiroishi, Sumio Takahashi, Yuji Moriwaki, Takashi Nakano, Zemta Tsutsumi
Publikováno v:
Metabolism. 47:739-743
To determine whether xylitol increases the plasma concentration and urinary excretion of uridine together with purine bases, we administered xylitol (0.6 g/kg weight) intravenously to six normal subjects using a 10% xylitol solution. Xylitol infusion
Publikováno v:
The Histochemical Journal. 30:69-74
The distribution of aldehyde oxidase activity was evaluated in unfixed cryostat sections from tissues of male Wistar rats using a tissue protectant, polyvinyl alcohol, with Tetranitro BT as a final electron acceptor. The distribution of aldehyde oxid
Autor:
Yuji Moriwaki, Kazuya Higashino, Jun-ichi Yamakita, Zenta Tsutsumi, Sumio Takahashi, Tetsuya Yamamoto
Publikováno v:
Metabolism. 46:1162-1165
We evaluated the effect of accumulation of intraabdominal visceral fat on the metabolism of uric acid in 50 healthy male subjects to elucidate any relationship between such obesity and hyperuricemia. The area of abdominal fat (visceral fat and subcut
Autor:
Tetsuya Yamamoto, Zenta Tsutsumi, Yuji Moriwaki, Sumio Takahashi, Jun-ichi Yamakita, Kazuya Higashino
Publikováno v:
Metabolism. 46:801-804
To determine whether the plasma level of uridine can be used to identify patients with gout, the plasma concentration of uridine was determined in patients with gout and normal subjects. Plasma uridine was significantly higher in patients with gout t
Autor:
Jun-ichi Yamakita, Kazuya Higashino, Yuji Moriwaki, Keisai Hiroishi, Tetsuya Yamamoto, Zennta Tsutsumi, Yumiko Nasako, Sumio Takahashi
Publikováno v:
Journal of Chromatography B: Biomedical Sciences and Applications. 681:395-400
An assay for human plasma xanthine oxidase activity was developed with pterin as the substrate and the separation of product (isoxanthopterin) by high-performance liquid chromatography with a fluorescence detector. The reaction mixture consists of 60