Daisuke Yoneyama

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The purpose of the present study was to characterize rat organic anion transporter (Oat) 3 (Oat3, Slc22a8) in the efflux transport at the inner blood-retinal barrier (BRB). Reverse transcription-polymerase chain reaction analysis showed that rat (r) Oat3 mRNA is expressed in retinal vascular endothelial cells (RVECs), but not rOat1 and rOat2 mRNA. The(More)
In the retina, taurine works as an osmolyte to exert a neuroprotective function, and it has been proposed that Müller cells, a major type of retinal glial cells, are involved in the osmolarity regulation of retinal neural cells by controlling the taurine concentration in retinal extracellular fluid (ECF). However, the detailed mechanism of taurine transport(More)
The purpose of the present study was to elucidate the mechanisms of retina-to-blood transport of l-proline across the blood-retinal barrier (BRB) in vivo and in vitro, and to identify the responsible transporter(s). The vitreous humor/retina-to-blood transport of [(3)H]l-proline across the BRB was evaluated by microdialysis. Transport mechanisms of(More)
D-serine, a coagonist for N-methyl-D-aspartate-type glutamate receptors, which mediate visual signal transmission, is thought to be generated from L-serine via serine racemase in the retina. However, the source of L-serine and D-serine in the retina are yet to be determined. The purpose of the present study was to investigate the characteristics of the(More)
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