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イチハラ アツヒロ
ICHIHARA Atsuhiro
市原 淳弘 所属 医学部 医学科（東京女子医科大学病院） 職種 教授・基幹分野長 |
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| 論文種別 | 原著 |
| 言語種別 | 英語 |
| 査読の有無 | 査読あり |
| 表題 | Urinary soluble (pro)renin receptor excretion is associated with urine pH in humans. |
| 掲載誌名 | 正式名：PloS one 略 称：PLoS One ISSNコード：19326203/19326203 |
| 掲載区分 | 国外 |
| 巻・号・頁 | 16(7),pp.e0254688 |
| 著者・共著者 | Sasaki Nobukazu†, Morimoto Satoshi*, Suda Chikahito, Shimizu Satoru, Ichihara Atsuhiro |
| 担当区分 | 最終著者 |
| 発行年月 | 2021 |
| 概要 | The (pro)renin receptor [(P)RR] binds to renin and its precursor prorenin to activate the tissue renin-angiotensin system. It is cleaved to generate soluble (P)RR and M8-9, a residual hydrophobic truncated protein. The (pro)renin receptor also functions as an intracellular accessory protein of vacuolar-type H+-ATPase, which plays an essential role in controlling the intracellular vesicular acid environment. Thus, in the kidney, (P)RR may play a role in transporting H+ to urine in the collecting duct. Although blood soluble (P)RR has been recognized as a biomarker reflecting the status of the tissue renin-angiotensin system and/or tissue (P)RR, the significance of urinary soluble (P)RR excretion has not been determined. Therefore, this study aimed to investigate the characteristics of urinary soluble (P)RR excretion. Urinary soluble (P)RR excretion was measured, and its association with background factors was investigated in 441 patients. Relationships between changes in urine pH due to vitamin C treatment, which reduce urine pH, and urinary soluble (P)RR excretion were investigated in 10 healthy volunteers. Urinary soluble (P)RR excretion was 1.46 (0.44-2.92) ng/gCre. Urine pH showed a significantly positive association with urinary soluble (P)RR excretion, independent of other factors. Changes in urine pH and urinary soluble (P)RR excretion due to vitamin C treatment were significantly and positively correlated (ρ = 0.8182, p = 0.0038). These data showed an association between urinary soluble (P)RR excretion and urine pH in humans, suggesting that (P)RR in the kidney might play a role in urine pH regulation. |
| DOI | 10.1371/journal.pone.0254688 |
| PMID | 34310595 |