Kazunori Katayama

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PURPOSE To elucidate the mechanisms of vitamin C transport across the blood-retinal barrier (BRB) in vivo and in vitro. METHODS. [(14)C]Dehydroascorbic acid (DHA) and [(14)C]ascorbic acid (AA) transport in the retina across the BRB were examined using in vivo integration plot analysis in rats, and the transport mechanism was characterized using a(More)
The purpose of this study was to elucidate the mechanisms of blood-to-retina creatine transport across the blood-retinal barrier (BRB) in vivo and in vitro, and to identify the responsible transporter(s). The creatine transport across the BRB in vivo and creatine uptake in an in vitro model of the inner BRB (TR-iBRB2 cells) were examined using(More)
PURPOSE L-type amino acid transporters (LATs) prefer branched-chain and aromatic amino acids, including neurotransmitter precursors. The objective of this study was to clarify the expression and function of LAT at the inner blood-retinal barrier (BRB). METHODS [3H]L-Leucine transport at the inner BRB was characterized by using in vivo integration plot(More)
The purpose of the present study was to evaluate vitreous humor/retina-to-blood efflux transport in rats and determine the efflux transport of estradiol 17-beta glucuronide (E17betaG) across the blood-retinal barrier (BRB) by the use of microdialysis. [(3)H]E17betaG and [(14)C]D-mannitol, which were used as a model compound for amphipathic organic anions(More)
This paper proposes a new navigation system using augmented reality (AR) technology for distribution work in central offices. This system helps operators to work accurately and effectively when they perform installation or removal work at connector panels accommodating a large number of optical fiber cords, and it also enables a database to be accurately(More)
We describe a resource management framework that will enable us to avoid the service interaction problem in home networks. Two kinds of the interaction (undesired interaction) have been discussed: one is a simple interaction that results when two or more services are about to operate the same networked appliance simultaneously, the other is a complicated(More)
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